READING & BATES CORP
10-Q, 1995-07-24
DRILLING OIL & GAS WELLS
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  =========================================================================
 
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, D.C. 20549
                                                                        
                                    FORM 10-Q

  (Mark One)
    (X)    QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                OF THE SECURITIES EXCHANGE ACT OF 1934
                For the quarterly period ended June 30, 1995
                                      or
    ( )   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
                OF THE SECURITIES EXCHANGE ACT OF 1934


                         Commission file number 1-5587

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

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

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


                                  (713)496-5000
             (Registrant's telephone number, including area code) 

                                        NONE
    (Former name, former address and former fiscal year, if changed since
    last report.)

  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___  


          NUMBER OF SHARES OUTSTANDING OF REGISTRANT'S COMMON STOCK 
                         AT JULY 14, 1995 : 59,758,923



  ==========================================================================
<PAGE>
                        PART I - FINANCIAL INFORMATION

  Item 1.  Financial Statements

  Company or Group of Companies for Which Report is Filed:

                 Reading & Bates Corporation and Subsidiaries

  The financial statements for the  three and six month periods  ended June
  30,  1995  and  1994,  include,  in  the  opinion  of  the  Company,  all
  adjustments  (which  consist   only  of  normal   recurring  adjustments)
  necessary  to  present  fairly  the  financial position  and  results  of
  operations for  such periods.  The  financial data for the  three and six
  month periods ended June 30, 1995  included herein have been subjected to
  a limited  review by  Arthur Andersen LLP,  the registrant's  independent
  public  accountants,  whose  report  is  included  herein.    Results  of
  operations for  the three and six  month periods ended June  30, 1995 are
  not  necessarily  indicative  of  results  of  operations  which will  be
  realized for the year ending December 31, 1995.  The financial statements
  should be read  in conjunction with the Company's Form  10-K for the year
  ended December 31, 1994.

                          READING & BATES CORPORATION
                               AND SUBSIDIARIES

                          CONSOLIDATED BALANCE SHEET
                                (in thousands)
<TABLE>
<CAPTION>
                                              JUNE 30,      DECEMBER 31,
                                                1995            1994   
                                            ----------      -----------
                                            (unaudited)
  ASSETS
  <S>                                       <C>               <C>
   CURRENT ASSETS:
      Cash and cash equivalents              $  40,386        $  42,319
      Accounts receivable:
        Trade, net                              40,956           34,430
        Other                                    4,023            2,952
      Materials and supplies inventory           9,516            8,421
      Other current assets                       2,014            4,038
                                             ---------        ---------
        Total current assets                    96,895           92,160
                                             ---------        ---------
  PROPERTY AND EQUIPMENT:
      Drilling                                 787,280          775,189
      Other                                      6,454            6,270
                                             ---------        ---------
        Total property and equipment           793,734          781,459
      Accumulated depreciation
       and amortization                       (302,864)        (291,140)
                                             ---------        ---------
        Net property and equipment             490,870          490,319
                                             ---------        ---------
  DEFERRED CHARGES AND OTHER ASSETS              3,916            3,584
                                             ---------        ---------
  TOTAL ASSETS                               $ 591,681        $ 586,063
                                             =========        =========
</TABLE>

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

                          READING & BATES CORPORATION
                               AND SUBSIDIARIES

                          CONSOLIDATED BALANCE SHEET
                                (in thousands)
<TABLE>
<CAPTION>
                                              JUNE 30,      DECEMBER 31,
                                                1995           1994    
                                             ---------      -----------
                                            (unaudited)
  LIABILITIES AND STOCKHOLDERS' EQUITY
  <S>                                        <C>              <C>
  CURRENT LIABILITIES:
     Short-term obligations                  $  20,177        $  12,222
     Long-term obligations due
      within one year                           43,476           44,099
     Accounts payable - trade                   10,365           12,398
     Accrued liabilities                        16,419           16,763
     Income taxes                                6,489            6,580
                                             ---------        ---------
     Total current liabilities                  96,926           92,062

  LONG-TERM OBLIGATIONS                         81,286           81,937

  OTHER NONCURRENT LIABILITIES                  43,718           42,958

  DEFERRED INCOME TAXES                          2,977            3,075
                                             ---------        ---------
     Total liabilities                         224,907          220,032
                                             ---------        ---------
  COMMITMENTS AND CONTINGENCIES

  MINORITY INTEREST                             44,436           43,871
                                             ---------        ---------
  STOCKHOLDERS' EQUITY:
     Preferred stock, $1.00 par value            2,990            2,990
     Common stock, $.05 par value                2,988            2,986
     Capital in excess of par value            337,856          337,406
     Accumulated deficit from March 31, 1991   (20,351)         (19,984)
     Other                                      (1,145)          (1,238)
                                             ---------        ---------
     Total stockholders' equity                322,338          322,160
                                             ---------        ---------    
  TOTAL LIABILITIES AND
    STOCKHOLDERS' EQUITY                     $ 591,681        $ 586,063
                                             =========        =========
  </TABLE>

 The accompanying notes are an integral part of the consolidated financial
 statements.
<PAGE>
                          READING & BATES CORPORATION
                               AND SUBSIDIARIES

                     CONSOLIDATED STATEMENT OF OPERATIONS
                    (in thousands except per share amounts)
                                  (unaudited)
<TABLE>
<CAPTION>
                                    THREE MONTHS ENDED   SIX MONTHS ENDED
                                         JUNE 30,             JUNE 30,     
                                    ------------------   ------------------
                                      1995      1994       1995      1994 
                                    --------  --------   --------  --------
  <S>                               <C>       <C>        <C>       <C>
  OPERATING REVENUES                $ 50,382  $ 39,493   $ 98,357  $ 81,850
                                    --------  --------   --------  --------
  COSTS AND EXPENSES:
    Operating expenses                31,234    30,973     63,145    59,598
    Depreciation and amortization      7,380     7,121     14,813    14,041
    General and administrative         4,354     4,555      8,435     8,970
                                    --------  --------   --------  --------
      Total costs and expenses        42,968    42,649     86,393    82,609
                                    --------  --------   --------  --------
  OPERATING INCOME (LOSS)              7,414    (3,156)    11,964      (759)
                                    --------  --------   --------  --------
  OTHER INCOME (EXPENSE):
    Interest expense                  (3,939)   (3,204)    (7,753)   (6,317)
    Interest income                      480     1,052        905     1,803
    Other, net                          (472)     (367)      (682)     (759)
                                    --------  --------   --------  --------
      Total other income
       (expense)                      (3,931)   (2,519)    (7,530)   (5,273)
                                    --------  --------   --------  --------
  INCOME (LOSS) BEFORE INCOME
       TAX EXPENSE AND MINORITY
       INTEREST                        3,483    (5,675)     4,434    (6,032)

  INCOME TAX EXPENSE                     569     1,174      1,732     2,082
                                    --------  --------   --------  --------
  INCOME (LOSS) AFTER INCOME
       TAX EXPENSE AND BEFORE
       MINORITY INTEREST               2,914    (6,849)     2,702    (8,114)

  MINORITY INTEREST                     (482)      811       (639)      585
                                    --------  --------   --------  --------
  NET INCOME (LOSS)                    2,432    (6,038)     2,063    (7,529)

  DIVIDENDS ON PREFERRED STOCK         1,215     1,215      2,430     2,430
                                    --------  --------   --------  --------
  NET INCOME (LOSS) APPLICABLE
     TO COMMON STOCKHOLDERS         $  1,217  $ (7,253)  $   (367) $ (9,959)
                                    ========  ========   ========  ========
  NET INCOME (LOSS) PER
     COMMON SHARE                   $    .02  $   (.13)  $   (.01) $   (.18)
                                    ========  ========   ========  ========
</TABLE>

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

                          READING & BATES CORPORATION
                               AND SUBSIDIARIES
                     CONSOLIDATED STATEMENT OF CASH FLOWS
                                (in thousands)
                                  (unaudited)
<TABLE>
<CAPTION>
                                                     SIX MONTHS ENDED
                                                          JUNE 30,    
                                                   -------------------
                                                     1995        1994 
                                                   --------    -------
  CASH FLOWS FROM OPERATING ACTIVITIES:
  <S>                                              <C>        <C>
     Net income (loss)                             $  2,063   $ (7,529)
     Adjustments to reconcile net income
       (loss) to net cash provided
        by operating activities:
      Depreciation and amortization                  14,813     14,041
      Loss (gain) on dispositions of
       property and equipment                           335       (710)
      Recognition of deferred expenses                4,609      1,806
      Minority interest in income
      (loss) of consolidated subsidiaries               639       (585)
      Changes in assets and liabilities:
        Accounts receivable, net                     (7,435)     1,553
        Materials and supplies inventory             (1,095)      (572)
        Deferred charges and other assets            (2,979)    (2,951)
        Accounts payable - trade                     (2,033)     3,254
        Accrued liabilities                            (874)       663
        Accrued interest                              2,690      2,491
        Accrued lease expense                             -     (2,335)
        Deferred revenue                                  -      3,543
        Income taxes                                    (91)       193
        Deferred income taxes                           (98)       131
        Other, net                                    1,026      1,942
                                                   --------   -------- 
          Net cash provided by
            operating activities                     11,570     14,935
                                                   --------   --------
  CASH FLOWS FROM INVESTING ACTIVITIES:
     Dispositions of property and equipment             281        436
     Purchases of property and equipment            (15,862)    (8,613)
     Business acquisitions                             (356)    (4,502)
     Increase in investments in and advances
       to unconsolidated investees                     (554)      (221)
                                                   --------   --------
         Net cash used in investing activities      (16,491)   (12,900)
                                                   --------   --------
  CASH FLOWS FROM FINANCING ACTIVITIES:
     Proceeds from long-term obligations             12,500          -
     Net proceeds from short-term obligations         7,955      4,172
     Principal payments on long-term obligations    (15,037)   (10,117)
     Dividends paid on preferred stock               (2,430)    (2,430)
                                                   --------   --------
         Net cash provided by (used in)
           financing activities                       2,988     (8,375)
                                                   --------   --------
  NET DECREASE IN CASH AND CASH EQUIVALENTS          (1,933)    (6,340)

  CASH AND CASH EQUIVALENTS AT
    BEGINNING OF PERIOD                              42,319     80,385
                                                   --------   --------
  CASH AND CASH EQUIVALENTS AT END OF PERIOD       $ 40,386   $ 74,045
                                                   ========   ========
  Supplemental Cash Flow Disclosures:
      Interest paid                                $  5,319   $  3,404
      Income taxes paid                            $  1,947   $  2,135
</TABLE> 

 The accompanying notes are an integral part of the consolidated financial
  statements.
<PAGE>
                          READING & BATES CORPORATION
                               AND SUBSIDIARIES

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  (unaudited)

  A)  COMMITMENTS AND CONTINGENCIES

          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 alleges,  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  purports to
      be  an owner of  the Company's  Common Stock and  seeks to represent a
      class of  shareholders  of the  Company  who  are similarly  situated.
      Each  of   the  plaintiffs   seeks  injunctive   relief,  damages   in
      unspecified  amounts and  certain other  relief, including  costs  and
      expenses.   The Company  believes each  of the  plaintiff's claims  in
      these  four  actions  are  groundless  and  that  the  defendants have
      meritorious defenses  in each action.   The Company  intends to defend
      each action vigorously.

  B) LONG-TERM OBLIGATIONS

<TABLE>
<CAPTION>     
                                                (in thousands)
                                                 ------------
     <S>                                           <C>
     Debt obligations at December 31, 1994         $ 126,036
        Proceeds from CIT Group (1)                   12,500
        Less cash payments                           (15,037)
        Other                                          1,263
                                                   ---------
     Debt obligations at June 30, 1995               124,762
        Less long-term obligations due
            within one year                          (43,476)
                                                   ---------
     Long-term obligations at June 30, 1995        $  81,286
                                                   =========
</TABLE>

              (1) In May 1995, the Company entered into a $25  million loan
        agreement with  The CIT  Group/Equipment Financing,  Inc. (the "CIT
        Group"). The  terms of  the  loan agreement  allow the  Company  to
        receive advances  (up to  $25  million) from  the CIT  Group  until
        December  29, 1995  and at  such  date the  entire  $25 million  is
        required to be  outstanding.  As of June  30, 1995, the Company had
        received $12.5 million and subsequent to June 30, 1995, the Company
        received the  remaining $12.5 million on  July 17, 1995.   The loan
        bears interest  at the one  month LIBOR (6.0625% at  June 30, 1995)
        plus  2.5%, and  interest is  payable monthly.   Loan  principal is
        repayable  commencing   in  November  1996  in   35  equal  monthly
        installments of  $416,666 and one payment of $10,416,690 in October
        1999.   The loan  agreement contains  covenants which  require  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  is collateralized by vessel mortgages on  two of
        the drilling units owned by the Company and related assignments  of
        insurance and earnings.  

  C)      OTHER NONCURRENT LIABILITIES

          The components of  "OTHER NONCURRENT LIABILITIES" were  as follows
  (in thousands):

<TABLE>
<CAPTION>
                                                  June 30,   December 31, 
                                                     1995        1994  
                                                  --------   -----------
      <S>                                         <C>          <C>
      Postretirement benefit obligations          $ 16,080     $ 15,950
      Net liabilities associated with
        discontinued operations                      6,916        7,003
      Pension obligations                            6,808        6,994
      Accrued interest expense related to the
        8% Senior Subordinated Convertible
        Debentures due December 1998                11,163       10,419
      Other                                          2,751        2,592
                                                  --------     --------
      Total                                       $ 43,718     $ 42,958
                                                  ========     ========
</TABLE>

  D)  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. 
<PAGE>
                   REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS



  To the Board of Directors and Stockholders
  Reading & Bates Corporation


      We  have  reviewed the  accompanying  consolidated  balance  sheet  of
  Reading & Bates Corporation (a  Delaware corporation) and Subsidiaries as
  of  June 30, 1995, and the related  consolidated statements of operations
  for the three and six month periods ended June 30, 1995 and 1994 and  the
  consolidated statement of cash flows for the six month periods ended June
  30, 1995 and  1994.  These financial statements are the responsibility of
  the Company's management.

      We conducted  our review in accordance  with standards established  by
  the  American Institute  of Certified  Public Accountants.   A  review of
  interim financial information consists principally of applying analytical
  procedures  to financial data and making inquiries of persons responsible
  for financial and accounting matters.   It is substantially less in scope
  than an audit  conducted in accordance  with generally accepted  auditing
  standards,  the  objective  of  which is  the  expression  of an  opinion
  regarding  the financial statements taken as a whole.  Accordingly, we do
  not express such an opinion.

      Based  upon our review, we are not aware of any material modifications
  that should be  made to the  financial statements  referred to above  for
  them to be in conformity with generally accepted accounting principles.


  Arthur Andersen LLP

  Houston, Texas
  July 18, 1995

<PAGE>

   Item 2.  Management's Discussion and Analysis of Financial Condition and
   Results of Operations

   MATERIAL CHANGES IN FINANCIAL CONDITION

         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. To the extent that the election  resulted  in  an under-
   or oversubscription as to the $100 million of cash,  a proration formula
   would  have been utilized.   The  Company engaged  Morgan Stanley  & Co.
   Incorporated  to act as its financial advisor with respect to evaluating
   the Sonat Offshore  proposal.  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,  the  Company  feels  those
   subsequent discussions likewise did  not result in terms  that recognize
   the  Company's  current  or long-term  value.    The  Company and  Sonat
   Offshore discontinued  discussions in  June 1995.   The Company  remains
   willing   to   engage   in  discussions   regarding   possible  business
   combinations that would potentially strengthen its  competitive position
   in  the  offshore  drilling   industry  and  appropriately  reflect  the
   underlying value of the Company

         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. 

         The Company's principal credit  facility (the "ING Facility") with
   ING  Bank was  amended and restated  April 27,  1995.   The ING Facility
   currently  consists  of  six  facilities, "Facility  A",  "Facility  B",
   "Facility C", "Facility D", "Facility E", and "Facility  F".  Facility A
   is  in the  form  of  a  term  loan with  a  restated  principal  amount
   outstanding at December  31, 1994  of $15 million.   Principal  payments
   which  commenced  on  December  31,  1994  under  the restated  facility
   agreement consist of four equal semiannual installments of $3.75 million
   with interest  payments at a  varying rate equal  to the 6  month London
   Interbank  Offered Rate  ("LIBOR")  (6% at  June  30, 1995)  plus  1.5%.
   Facility B, which was not restated in the amendment, is also in the form
   of  a term  loan with  an original  balance of  $45 million.   Principal
   payments  which commenced  on  June  30,  1993  consist  of  nine  equal
   semiannual  installments  of  approximately  $4.4 million  and  a  final
   installment of  $5.2 million.   Interest is payable  quarterly at  the 3
   month LIBOR (6.0625% at June 30, 1995) plus 1.9375%.  Facilities C, D, E
   and  F consist of $50 million of  working capital financing.  Facility C
   is in the form of an overdraft account with up to $15  million available
   through August 1, 1995 (the  Company expects to conclude an extension of
   this  facility until  December  31,  1995  prior  to  August  1,  1995).
   Interest  on amounts outstanding under  Facility C is  paid quarterly at
   the prime rate of Citibank, N.A.  (9.0% as of June 30, 1995) plus 1.25%.
   Facility D is in  the form of a $5  million letter of credit for  a term
   not  to extend  beyond April 30,  1996.   Facility E  is in the  form of
   standby letters of  credit in an  aggregate amount  of $15 million  with 
   expiration dates on or before June 30, 1997.  Facilities D and E letters
   of  credit support  bid,  performance, and  other  bonds needed  by  the
   Company in the ordinary course of business.    Facility F is in the form
   of standby letters  of credit  used to obtain  customs bonds  respecting
   duties assessed on the Company's drilling equipment or rigs in Indonesia
   in a total amount not to exceed  $15 million.   The terms of Facility  F
   letters of credit shall not extend beyond June 30, 1997.   The amendment
   allows  for the  transfer  of the  unused  portion of  commitment  under
   Facility C to Facility  E or Facility F, or under Facility E to Facility
   C or Facility F.  As of June  30, 1995, the Company had drawn down $14.2
   million  available from Facility C  and had drawn down  an additional $6
   million which  was transferred from Facility E to Facility C for a total
   of $20.2 million included in Short-term obligations.

         Liquidity  of the  Company should  be considered  in light  of the
   significant  fluctuations in demand experienced  by drilling contractors
   as rapid changes  in oil  and gas producers'  expectations, budgets  and
   drilling  plans  occur.    These  fluctuations  can  rapidly 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.   As of June 30, 1995, approximately
   $18.5 million of total  consolidated cash and cash equivalents  of $40.4
   million are restricted from the Company's use outside of Arcade Drilling
   AS  ("Drilling").  The  Company's management currently  expects that its
   cash flow from operations,  in combination with  cash on hand and  other
   sources will be sufficient to satisfy the Company's 1995 working capital
   needs,  dividends  on  preferred  stock,  capital  expenditures  on  its
   existing  fleet, debt,  lease, and  other payment  obligations.    Other
   sources of cash might  include short-term loans, debt rescheduling,  new
   debt,  new equity,  asset  disposals and/or  by  delaying a  portion  of
   planned capital or other expenditures.   As disclosed at  the end of the
   first quarter of 1995, in view  of the Company's debt repayment schedule
   for  the balance of 1995  currently amounting in the  aggregate to $56.1
   million (including that of Drilling and amounts to be repaid to ING Bank
   as  described below),  the  Company expected  certain debt  rescheduling
   and/or   other  financing   would   likely  be   required  by   yearend.
   Accordingly, in  May 1995, the Company  entered into a  $25 million loan
   agreement  with  The  CIT  Group /Equipment  Financing,  Inc.  (the "CIT
   Group").  The terms of  the loan agreement allow the Company  to receive
   advances up to $25 million from the CIT Group until December 29, 1995 at
   which date  the entire $25 million  is required to be  outstanding.  See
   Note  B  of Notes  to  Consolidated Financial  Statements for  a further
   discussion of the CIT Group loan terms.  The Company  has agreed  to pay
   off  the ING  Facility  by December  31,  1995.   The  principal balance
   outstanding to  ING  Bank  at  December  31,  1995  is  expected  to  be
   approximately  $26.0  million  of   which  $17.8  million  is  currently
   classified as long-term.    Presently, the  Company is confident in  its
   ability to  secure replacement financing  prior to  the pay off  and has
   therefore not included the $17.8 million at June 30, 1995 in the CURRENT
   LIABILITIES  section  of  the   Company's  Consolidated  Balance  Sheet.
   Management is constantly evaluating financing alternatives available  to
   the  Company and believes that sufficient flexibility exists to meet any
   liquidity shortfalls. 

         The Company intends to continue to modernize and expand its fleet,
   in  order to  meet 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  remains willing 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.  Moreover, the
   Company  continues to  consider  the selective  acquisition of  existing
   rigs,  directly  or  through  business  combination  transactions.    In
   addition,  the  Company's  wholly  owned  subsidiary,  Reading  &  Bates
   Development  Co.  ("Development")  is  the General  Contractor  for  the
   provision of a semisubmersible floating production system for the Liuhua
   11-1 Project being jointly  developed by Amoco Orient  Petroleum Company
   ("Amoco")  and China Offshore Oil  Nanhai East Corporation  in the South
   China Sea.   The Liuhua 11-1 Project is near completion and the floating
   production system was  delivered to Amoco  on June 12,  1995.  In  April
   1995,  Development  entered  into  a   letter  of  intent  with  Enserch
   Exploration, Inc.  ("Enserch")  to acquire  a  20% working  interest  in
   Enserch's Green Canyon 254 Project in the U.S. Gulf of  Mexico.  Subject
   to the rights  of the working interest owners  under the joint operating
   agreement, the Company's third-generation semisubmersible "M.  G. HULME,
   JR."  would also receive a  three year drilling  contract, plus options,
   for  the field's development drilling  upon completion of  an upgrade of
   the unit  for operations in up  to 3,300 feet of water,  and the Company
   would convert  its second-generation  semisubmersible "RIG  41",  or  an
   equivalent  unit,  to a floating production vessel capable of processing
   up to 70,000  barrels of oil per day.  The project, if successful, would
   have  a substantial  impact on  the Company's  future earnings  and cash
   flow.    In  May 1995,  Mobil  Exploration  &  Producing U.S.  Inc.,  an
   affiliate of  Mobil Corporation, signed a letter of intent to purchase a
   40% working interest  in the project. Enserch is  expected to retain the
   remaining 40% working interest in the Project.  The Company continues to
   consider  selective expansion  in floating production through additional
   management contracts, alliances with other companies, the acquisition of
   floating production equipment and/or participation in  field development
   projects.  

   MATERIAL CHANGES IN RESULTS OF OPERATIONS

                     SIX MONTHS ENDED JUNE 30, 1995 COMPARED
                       TO SIX MONTHS ENDED JUNE 30, 1994

      The Company's net  income for the six  months ended June 30, 1995 was
   $2.1 million ($.01  loss per  share after preferred  stock dividends  of
   $2.4 million) as compared to  a net loss of $7.5 million  ($.18 loss per
   share after preferred stock  dividends of $2.4 million).   The Company's
   rig utilization for the  six months ended June 30, 1995 and 1994 was 84%
   and 73%, respectively.

      Operating  revenues   are  primarily  a   function  of  dayrates  and
   utilization.  The $16.5  million increase in operating revenues  for the
   six months ended June  30, 1995 over the  same period in 1994 is  mainly
   attributable  to  increased  utilization   of  the  jackup  and  fourth-
   generation  fleets.   In  regards to  the  jackup fleet  in  particular,
   utilization increased from 69%  in the first half of 1994  to 83% in the
   first  half of  1995.      As an  offset to  this increase,  included in
   operating revenues  for the first half of 1994 is $1.8 million generated
   from  the operations  of the  "SONNY VOSS"  which in  December  1994 was
   removed from the Company's fleet as  a result of the Company negotiating
   an  early release  from  its remaining  lease  obligation.       Further
   offsetting  the improvement in the  jackup fleet was  the performance of
   the Company's one  mat-supported jackup,  the "D. K.  MCINTOSH".   While
   this rig  was  100% utilized  during the  first half  of  1994, the  rig
   operated only 5 days during the first half of 1995.   In  regards to the
   fourth-generation fleet in particular, the "JACK BATES"  and the "ARCADE
   FRONTIER"  both  had  significantly   improved  utilization  rates   and
   moderately improved dayrates  for the first half of 1995  as compared to
   the first  half of 1994.      Mitigating the  improvements in  operating
   revenues  reported for  the "JACK BATES"  in the  first half  of 1995 as
   compared to the first half of  1994 is the reporting of $2.4 million  of
   operating revenues  due to the 1994 settlement of the loss of hire claim
   relating to  the  "JACK  BATES"  casualty caused  by  Hurricane  Andrew.
   Countering the overall  improvements in utilization and  dayrates of the
   jackup and fourth-generation fleets, the utilization for  the tender and
   third-generation  fleets dropped  considerably in  the six  months ended
   June 30,  1995 as compared to  the six months  ended June 30,  1994.  In
   particular, the tender, "CHARLEY GRAVES"  completed a three and one-half
   year contract in Malaysia in mid April of 1995 then remained stacked for
   the remainder of the second quarter of 1995.    Additionally, the third-
   generation  semi,  "JIM  CUNNINGHAM"  experienced  considerable downtime
   during the first half of 1995 as compared to the first half of  1994 due
   to drydocking for hull enhancements and contract preparation work.  

      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 drilling  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 drilling  units and the  mix of  labor
   between  expatriates  and  nationals   as  stipulated  in  the  drilling
   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 drilling unit is  performing and
   the  age and  condition  of the  equipment.   Scheduled  maintenance  of
   equipment  and overhauls are performed  in accordance with the Company's
   preventive maintenance program.  

      Operating expenses  increased $3.5  million for  the six months ended
   June 30, 1995 as compared to the same period in 1994 in part  due to the
   increased  utilization of the "JACK  BATES" between those  periods.  The
   "JACK BATES"  operated  for most  of the  first half  of  1995 (92%)  as
   compared to  the first  half  of 1994  when the  rig  was under  tow  to
   offshore  Indonesia  for almost  three  months.   Extended  mobilization
   periods  and contract  preparation periods  generally   result  in lower
   operating  expenses  since  net mobilization  and  contract  preparation
   expenses  are  normally  deferred   and  amortized  over  the  following
   contract.   Also, the "ARCADE FRONTIER" experienced significantly higher
   operating  costs in the first half of 1995 as compared to the first half
   of 1994  because the rig was  stacked for an extended  period during the
   first  half of 1994 and  had reduced operating  expenses somewhat during
   that  period.   In addition,  two of  the  Company's jackups  moved into
   geographic  areas with  higher  operating  costs.      Countering  these
   operating  expense  increases were  two  items  which reduced  operating
   expenses in  the first  half of 1995  as compared  to the first  half of
   1994:   Included in operating expenses for the six months ended June 30,
   1994 is $3.1 million of operating expenses (net of a  $.9 million credit
   due  to  the recognition  of  the deferred  gain on  the sale/leaseback)
   generated from the operation of the  "SONNY VOSS" which in December 1994
   was removed  from  the  Company's  fleet as  a  result  of  the  Company
   negotiating  an early release from its remaining lease obligation.  Also
   included in operating expenses for the six months ended June 30, 1994 is
   $3.1 million of  lease expense relating to two of the Company's jackups.
   In  September 1994,  the Company  purchased certain  notes  and interest
   relating  to the lease  debt outstanding  associated with  the operating
   leases of the two jackups.

      Income tax expense decreased  for the six months  ended June 30, 1995
   compared  to the  same period  in 1994  despite the  increase  in income
   before income  taxes.  Such decrease is primarily due to a change in the
   Company's foreign geographic areas of operations.

                    THREE MONTHS ENDED JUNE 30, 1995 COMPARED
                      TO THREE MONTHS ENDED JUNE 30, 1994

      The Company's net income for the three months ended June 30, 1995 was
   $2.4 million ($.02  per share  after preferred stock  dividends of  $1.2
   million) compared with a net loss of $6.0 million ($.13  per share after
   preferred stock  dividends of $1.2 million) for the same period of 1994.
   Income from operations for the three months ended June 30, 1995 was $7.4
   million compared to  a net loss from operations of $3.2 million in 1994.
   The Company's rig utilization for the  three months ended June 30,  1995
   and 1994 was 83% and 69%, respectively.

      As mentioned, operating revenues are primarily a function of dayrates
   and utilization.  The  $10.9 million increase in operating  revenues for
   the three  months ended June  30, 1995 over  the same period  in 1994 is
   mainly  attributable to increased utilization of  the jackup and fourth-
   generation fleets.   In regards to the jackup fleet  in particular, four
   specific  rigs,  the "D.  R.  STEWART",  the "H.  H.  WARD", the  "ROGER
   MOWELL",  and   the  "C.   E.  THORNTON"  all   experienced  significant
   improvements in their utilization  rates for the second quarter  of 1995
   as compared to the second quarter of 1994.  The  average utilization for
   those  rigs mentioned during  the three months  ended June 30,  1995 was
   approximately 92% as compared  to average utilization for the  same four
   rigs of approximately  23% during the three months  ended June 30, 1994.
   This  69% improvement  in average  utilization for  those  specific rigs
   translates  to an  approximately $6.7  million improvement  in operating
   revenues for the Company.     This  improvement in the jackup fleet  was
   partially offset by the  performance of the Company's one  mat-supported
   jackup, the "D. K. MCINTOSH".   While this rig was 100%  utilized during
   the  second quarter  of  1994, the  rig  was stacked  the entire  second
   quarter of  1995 contributing an approximately  $1.4 million unfavorable
   variance between the two  periods.  In regards to  the fourth-generation
   fleet in particular, the "JACK BATES" and the "ARCADE FRONTIER" both had
   significantly improved utilization rates for  the second quarter of 1995
   as compared  to the second quarter  of 1994.  The  "JACK BATES" recorded
   55% utilization for the three months ended June 30, 1994  versus 85% for
   the three months  ended June 30, 1995.  The  "ARCADE FRONTIER" went from
   19% to 100% utilization for the same periods.   Additionally, these same
   two rigs experienced significant  increases in dayrates between  the two
   periods.  Countering the improvements in utilization and dayrates of the
   jackup and fourth-generation fleets, the utilization for the tenders and
   third-generation fleets  dropped considerably  in the second  quarter of
   1995 as  compared to  the second  quarter of 1994.   In  particular, the
   tender, "CHARLEY GRAVES" completed  a three and one-half   year contract
   in Malaysia in mid April of 1995 then remained stacked for the remainder
   of the  second quarter of  1995.     Additionally,  the third-generation
   semi, "JIM  CUNNINGHAM"  experienced considerable  downtime  during  the
   second quarter of 1995  as compared to the second quarter of 1994 due to
   drydocking for hull enhancements and contract preparation work.  

      Operating expenses  increased only $.3 million for  the three  months
   ended June 30, 1995  as compared to the same  period in 1994.    The $.3
   million  is inclusive of  a few  relatively large  offsetting variances.
   The  "JACK BATES" operated for most of  the second quarter of 1995 (85%)
   as compared to the second quarter of 1994 when the rig was under  tow to
   offshore  Indonesia and\or stacked for  almost half the  quarter.  Also,
   the "ARCADE  FRONTIER" experienced significantly  higher operating costs
   in the  second quarter of 1995 as compared to the second quarter of 1994
   because the rig was stacked for an extended period during the first half
   of   1994 and had  therefore reduced operating  expenses somewhat during
   that period which includes the second  quarter.  In addition, two of the
   Company's  jackups moved  into  geographic areas  with higher  operating
   costs.    Countering these  operating expense increases  were two  items
   which  reduced operating  expenses  in the  second  quarter of  1995  as
   compared to the second quarter of 1994:  Included  in operating expenses
   for the  three months ended June  30, 1994 is $1.4  million of operating
   expenses  generated  from the  operation  of the  "SONNY VOSS"  which in
   December 1994  was removed from the  Company's fleet as a  result of the
   Company  negotiating   an  early   release  from  its   remaining  lease
   obligation.  Also, included  in operating expenses for the  three months
   ended June  30, 1994 is $1.6 million of lease expense relating to two of
   the Company's jackups.  In September 1994, the Company purchased certain
   notes  and interest  relating to  the lease debt  outstanding associated
   with the operating leases of the two jackups.

      Income tax expense decreased for the three months ended June 30, 1995
   compared to  the same  period  in 1994  despite the  increase in  income
   before income taxes.  Such decrease is primarily due to a  change in the
   Company's foreign geographic areas of operations.

                          PART II - OTHER INFORMATION

   Item 1.  Legal Proceedings

      LITIGATION  -  The Company  is  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  have been
   denied,  and  the  case  has  been  remanded  to  the  trial  court  for
   determination of damages.

      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  alleges,  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 purports to be an owner  of the Company's
   Common Stock  and seeks  to represent  a class  of shareholders  of  the
   Company  who are  similarly  situated.   Each  of the  plaintiffs  seeks
   injunctive  relief, damages  in  unspecified amounts  and certain  other
   relief,  including costs and expenses.  The Company believes each of the
   plaintiff's claims in  these four  actions are groundless  and that  the
   defendants  have  meritorious  defenses in  each  action.    The Company
   intends to defend each action vigorously.

      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 known  claims and
   litigation  will not  have a  material adverse  effect on  the Company's
   business or consolidated financial position or results of operations.

   Item 4.  Results of Votes of Security Holders

          At  the  annual  meeting  of  stockholders  of  Reading  &  Bates
      Corporation,  held on  May  2, 1995,  three  Class I  directors  were
      elected  by a vote  of common stock shareholders,  as outlined in the
      Company's Proxy Statement  relating to the  annual meeting.   Proxies
      for the annual meeting were solicited pursuant to Regulation 14 under
      the Securities and Exchange Act of 1934, there was no solicitation in
      opposition  to  the  management's nominees  as  listed  in  the Proxy
      Statement and  all of such  nominees were  elected, with  41,428,349,
      41,427,536 and 41,426,270 votes for each of Mr. Donabedian, Mr. Rhein
      and Mr. Sandmeyer,  respectively, and 460,136,   460,936 and  462,215
      votes withheld from each of such nominees, respectively.  In addition
      four proposals  were  voted upon:    i)  a proposal  to  approve  the
      Company's 1995  Long-Term Incentive  Plan, with 31,291,448  votes for
      the  proposal,  9,685,728  votes  against the  proposal  and  911,309
      abstentions,  ii)  a proposal to approve the Company's  1995 Director
      Stock Option Plan, with 38,697,920  votes for the proposal, 2,424,258
      votes  against the proposal and 766,307 abstentions,  iii) a proposal
      to  ratify  and approve  the  appointment of  Arthur Andersen  LLP as
      independent public accountants  for the Company  for its fiscal  year
      1995, with 41,336,299  votes for the proposal,  359,426 votes against
      the  proposal  and  192,760 abstentions  and    iv) a  proposal  by a
      stockholder, as  set out under the heading  "Stockholder Proposal" in
      the Company's  Proxy Statement dated  March 29, 1995,  with 1,524,168
      votes for  the proposal,  25,178,415 votes  against the  proposal and
      840,758 abstentions.

   Item 6(a).  Exhibits

      Exhibit 10.1- Loan  Agreement dated  as  of May  25,  1995 among  the
                    Registrant  and Reading  & Bates  Offshore, Limited,  a
                    subsidiary   of   the    Registrant,   and   the    CIT
                    Group/Equipment Financing, Inc.

      Exhibit 10.2- Amended and Restated Credit Facility Agreement dated as
                    of April 27, 1995 among the Registrant, Reading & Bates
                    Drilling Co., Reading & Bates Exploration Co.,  Reading
                    and Bates, Inc., Reading and Bates Borneo Drilling Co.,
                    Ltd. and Reading & Bates (A) Pty. Ltd., subsidiaries of
                    the  Registrant,  and  Internationale Nederlanden  Bank
                    N.V.

      Exhibit 11-   Computation of  Earnings Per Common Share,  Primary and
                    Fully Diluted.

      Exhibit 15-   Letter    regarding    unaudited   interim    financial
                    information.

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

   Item 6(b). Reports on Form 8-K

          There were  eight Current Reports  on form 8-K  filed during  the
      three months ended June  30, 1995.  A Current Report on  Form 8-K was
      filed  April 6, 1995  disclosing an action filed  against the Company
      and  the  individual   members  of  its  board  of  directors   by  a
      shareholder; filed April 12, 1995 disclosing additional actions filed
      by three shareholders  against the Company and individual  members of
      its board of directors; filed April 18, 1995 disclosing the Company's
      response  to  a press  release  issued on  April  18,  1995 by  Sonat
      Offshore Drilling Inc.; filed April 19, 1995 disclosing the Company's
      first quarter 1995 earnings; filed April 20, 1995 disclosing a letter
      of  intent  with  Enserch  Exploration, Inc.;  filed  April  21, 1995
      disclosing the text of the Company's reply to Sonat Offshore Drilling
      Inc.'s letter dated April 13, 1995; filed May  2, 1995 disclosing the
      resignation of  Mr. Willem Cordia from the board  of directors due to
      health reasons and the appointment of Mr. M.A.E. Laqueur to the board
      of directors;  and filed  May 15,  1995 disclosing  the signing of  a
      letter  of intent  by Mobil  Exploration &  Producing U.S.  Inc. with
      Enserch Exploration, Inc.
<PAGE>

                                   SIGNATURE



  Pursuant to the requirements of the Securities Exchange Act of 1934, the
  registrant has duly caused this report to be signed on its behalf by the
  undersigned thereunto duly authorized.  



                                            READING & BATES CORPORATION



  Date: July 21, 1995                       By  /s/T. W. Nagle      
                                               ------------------------
                                               T. W. Nagle
                                               Vice President and Chief
                                               Financial Officer
<PAGE>

                                 EXHIBIT INDEX
  Exhibit
  Number                Description                


  10.1      Loan Agreement dated  as of  May 25, 1995  among the  Registrant
            and Reading &  Bates  Offshore, Limited,  a  subsidiary  of  the
            Registrant, and the CIT Group/Equipment Financing, Inc.

  10.2      Amended  and Restated  Credit  Facility  Agreement dated  as  of
            April 27, 1995 among the  Registrant, Reading  & Bates  Drilling
            Co., Reading & Bates Exploration Co., Reading  and Bates,  Inc.,
            Reading and Bates Borneo Drilling Co., Ltd. and  Reading & Bates
            (A)   Pty.   Ltd.,   subsidiaries   of   the   Registrant,   and
            Internationale Nederlanden Bank N.V.

  11        Computation  of Earnings  Per Common  Share, Primary  and  Fully
            Diluted.

  15        Letter re:  unaudited interim financial information.

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


                                                           EXHIBIT 10.1




                                LOAN AGREEMENT

                                     AMONG


                   THE CIT GROUP/EQUIPMENT FINANCING, INC.,
                                                  as Lender,



                          READING & BATES CORPORATION
                                                  as Guarantor,

                                      and

                      READING & BATES OFFSHORE, LIMITED,
                                                  as Borrower


                           Dated as of May 25, 1995
<PAGE>

                               TABLE OF CONTENTS


                               R E C I T A L S :
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

                                  DEFINITIONS
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

                                   ARTICLE I
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

                                   The Loan
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
        Section 1.01  Amount  . . . . . . . . . . . . . . . . . . . . .    
        Section 1.02  Revolving Loan Availability Period  . . . . . . .    
        Section 1.03  Term Loan Period  . . . . . . . . . . . . . . . .    
        Section 1.04  Interest  . . . . . . . . . . . . . . . . . . . .    
        Section 1.05  Payments  . . . . . . . . . . . . . . . . . . . .    
        Section 1.06  Prepayment  . . . . . . . . . . . . . . . . . . .   
        Section 1.07  Security  . . . . . . . . . . . . . . . . . . . .   
        Section 1.08  Facility Fee  . . . . . . . . . . . . . . . . . .   
        Section 1.09  Revolving Loan Fee  . . . . . . . . . . . . . . .   

                                  ARTICLE II
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

                             Conditions Precedent
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
        Section 2.01  Conditions Precedent to First Advance . . . . . .   
        Section 2.02  Conditions Precedent to Subsequent Advances . . .   
        Section 2.03  Waiver of Conditions Precedent  . . . . . . . . .   

                                  ARTICLE III
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

                  Representations, Warranties and Covenants 
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
        Section 3.01  Representations of the Borrower . . . . . . . . .   
        Section 3.02  Covenants of the Borrower . . . . . . . . . . . .   
        Section 3.03  Covenants of the Guarantor  . . . . . . . . . . .   

                                  ARTICLE IV
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

                               Events of Default
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

                                   ARTICLE V
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

                                 Miscellaneous
  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
        Section 5.01  Notices . . . . . . . . . . . . . . . . . . . . .   
        Section 5.02  No Waiver . . . . . . . . . . . . . . . . . . . .   
        Section 5.03  Applicable Law and Jurisdiction . . . . . . . . .   
        Section 5.04  Severability  . . . . . . . . . . . . . . . . . .   
        Section 5.05  Amendment . . . . . . . . . . . . . . . . . . . .   
        Section 5.06  Assignment and Participation  . . . . . . . . . .   
        Section 5.07  Costs, Expenses and Taxes . . . . . . . . . . . .   
        Section 5.08  Counterparts  . . . . . . . . . . . . . . . . . .   
        Section 5.09  Section Headings  . . . . . . . . . . . . . . . .   
        Section 5.10  Merger  . . . . . . . . . . . . . . . . . . . . .   

  Exhibit A   -     Secured Promissory Note

  Exhibit B   -     Guaranty

  Exhibit C   -     Notice of Drawing



     THIS LOAN  AGREEMENT dated as  of May  25, 1995 among  READING & BATES
OFFSHORE,  LIMITED, an  Oklahoma  corporation (the  "Borrower"),  READING &
BATES CORPORATION,  a Delaware corporation, as  Guarantor (the "Guarantor")
and  THE CIT GROUP/EQUIPMENT  FINANCING, INC., a New  York corporation (the
"Lender").   Capitalized terms used herein and not otherwise defined herein
are used with the meanings given to them in the Definitions Section of this
Agreement.

                             R E C I T A L S :

     The Borrower is the owner of the United States flag drilling rig, F.G.
McCLINTOCK, Official No.  562059 (the "McCLINTOCK") and  is the prospective
owner  of the United States  flag drilling rig GEORGE H. GALLOWAY, Official
No.  651646   (the  "GALLOWAY";  each  a  "Vessel   and  collectively,  the
"Vessels").

     The GALLOWAY is presently owned by  Shawmut Bank Connecticut, National
Association, as  Owner Trustee, is  bareboat chartered to  Reading &  Bates
Drilling Co.,  an affiliate  of the Borrower,  and the  Borrower intends to
complete its purchase of the GALLOWAY within sixty (60) days of the Closing
Date.

     The  Borrower has  requested  a loan  from the  Lender in  a principal
amount of up  to Twenty Five Million United States Dollars (USD 25,000,000)
(as  more specifically  described in  Section 1.01  hereof, the  "Loan") in
order to provide working capital  and for other corporate  purposes for the
Borrower and its affiliates upon the terms and conditions contained  herein
and in the Note.

     The Loan shall be evidenced by a  secured promissory note made by  the
Borrower to the Lender (the "Note")  substantially in form and substance of
Exhibit A annexed hereto and made a part hereof.

     In order to  secure its obligations hereunder and under the  Note, the
Borrower has  agreed (a)  to grant to  the Lender a  first preferred  fleet
mortgage  on the  Vessels and  a first  priority  security interest  on its
rights to receive moneys  on account of  the operation thereof pursuant  to
the Mortgage, the Earnings Assignment and the Insurance Assignment; and (b)
to obtain  the agreement of the Guarantor to issue the Guaranty in favor of
the  Lender guaranteeing  Borrower's  obligations hereunder  and  under the
Note, the Mortgage, the Earnings Assignment and the Insurance Assignment.

     NOW,  THEREFORE,  in consideration  of  the  mutual  agreements herein
contained, the parties hereto agree as follows:


                                DEFINITIONS

     The following terms shall have the following meanings for all purposes
of  this Agreement and shall be equally applicable to both the singular and
the plural forms of the terms herein defined.

     "Agreement", "this  Agreement", "herein",  "hereunder" or  other  like
words mean  this Loan  Agreement  as originally  executed or  as  modified,
amended  or supplemented  from  time  to time  pursuant to  the  provisions
hereof.

     "Advance"  means a  loan by  the Lender  to the  Borrower  pursuant to
Section 1.01 of this Agreement.

     "Assignments"  mean   the  Earnings   Assignment  and   the  Insurance
Assignment.

     "Borrower"  means Reading & Bates Offshore, Limited and its successors
and permitted assigns.

     "Business Day" means a day other than a  Saturday or a Sunday or a day
on which commercial banks are  authorized to be closed in the  State of New
York or the State of Texas.

     "Cash  Flow  Coverage  Ratio"   means  the  sum  of   the  Guarantor's
consolidated  net   income,   before  interest   expense,   income   taxes,
depreciation, amortization and  Lease Expense, in the prior  four quarters;
divided by the sum of interest expense and Lease 
Expense.

     "Closing  Date" means  any Business Day  on or prior to  June 15, 1995
which shall be the day on which the first Advance  is made as designated by
the Borrower in its Notice of Drawing.

     "Dollars" or  "USD" means  lawful  currency of  the United  States  of
America.

     "Earnings Assignment"  means the General Assignment  of Earnings dated
the Closing  Date granted by the  Borrower in favor of the  Lender, in form
and substance  satisfactory to the  Lender, as  the same  may be  modified,
amended or supplemented from time to time.

     "Event  of Default"  has the meaning  set forth in Article  IV of this
Agreement.

     "Excluded Income Taxes"  has the meaning set forth in  Section 1.05(a)
of this Agreement.

     "Fair Market Value" has the meaning set forth in Section 1.06(a)(iii).

     "Governmental Agencies" means  any government or any state, department
or  other  political  subdivision  thereof  or  governmental body,  agency,
authority, department  or commission having jurisdiction  over the Borrower
or its  properties  (including without  limitation any  court or  tribunal)
exercising executive, legislative, judicial,  regulatory or  administrative
functions of or  pertaining to government and  any corporation, partnership
or other entity directly or indirectly owned by the foregoing.

     "Guarantor" means Reading &  Bates Corporation and its successors  and
permitted assigns. 

     "Guaranty"  means the  Guaranty dated  the Closing  Date given  by the
Guarantor in  favor of the Lender,  substantially in the  form of Exhibit B
attached  hereto  and made  a  part hereof,  as the  same may  be modified,
amended and supplemented from time to time.

     "Hazardous  Substances"  means petroleum  and used  oil, or  any other
pollutant or contaminant, hazardous, dangerous or toxic waste, substance or
material   as  defined   in  the   Comprehensive   Environmental  Response,
Compensation and Liability Act of 1980, as amended, 42 U.S.C. Sec. 9601, et
seq. (hereinafter called  "CERCLA"); the Resource Conservation and Recovery
Act, as amended, 42 U.S.C. Sec. 6901, et  seq. (hereinafter called "RCRA");
the  Toxic Substances Control Act, as amended, 15 U.S.C. Sec. 2601, et seq.
(hereinafter called "TSCA"); the Hazardous Materials Transportation Act, as
amended, 49 U.S.C.  Sec. 1801, et seq. (hereinafter called "HMTA"); the Oil
Pollution  Act  of   1990,  Pub.L.  No.  101-380,  104  Stat.   484  (1990)
(hereinafter called "OPA");  or any other statute, law, ordinance,  code or
regulation of any Governmental Agency relating to or imposing liability  or
standards of conduct concerning the use, production, generation, treatment,
storage, recycling,  handling, transportation, release, threatened  release
or  disposal of  any  hazardous,  dangerous or  toxic waste,  substance  or
material, currently in effect or at any time hereafter adopted.

     "Insurance  Assignment" means  the Assignment  of Insurance  dated the
Closing  Date granted by the  Borrower in favor of the  Lender, in form and
substance satisfactory to  the Lender, as the same may be modified, amended
or supplemented from time to time.

     "Interest Rate" has the meaning set forth  in Section 1.04(b) of  this
Agreement.

     "Lease Expense" means the expense associated with leases by any direct
or indirect subsidiary of the Guarantor, which leases qualify as  operating
leases  in  accordance with  generally  accepted  accounting  principles in
effect from time to time in the United States.

     "LIBOR Rate" means with respect to any Interest Period, the  one-month
rate of interest per annum at which deposits in U.S. dollars are offered to
major  banks in  the London  interbank market  at approximately  11:00 a.m.
(London  time), as reported by the Telerate System page 3750 (or such other
page as  may replace  such  page 3750  on such  system for  the purpose  of
reporting London Interbank Offered Rates of major banks) under the  heading
for British  Bankers Association  Interest Settlement Rates  in the  column
designated "USD" (U.S. Dollar)  two (2) Business Days  before the first day
of an Interest Period.

     "Loan" has the meaning set forth in Section 1.01 of this Agreement.

     "Loan  Documents" means  the  Note,  the Mortgage,  the  Guaranty, the
Earnings Assignment and the Insurance Assignment.

     "Maturity Date" means November 25, 1999.

     "Long Term Debt" means all long term obligations of the Guarantor on a
consolidated basis, excluding the current portion of long term debt and the
obligations  of any direct  or indirect subsidiary of  the Guarantor (other
than the Borrower)  that is non-recourse to the Guarantor, Reading  & Bates
Drilling  Co.  or  the   Borrower,  all  according  to  generally  accepted
accounting principles in effect from time to  time in the United States  of
America.

     "Mortgage"  means the  United  States first  preferred  fleet mortgage
dated the  Closing Date granted by the Borrower in  favor of the Lender, in
form and substance satisfactory to the Lender, as the same may be modified,
amended  or supplemented from  time to time, and  any substantially similar
instrument which  may be  executed, delivered and recorded  in substitution
therefor.

     "Note" has  the meaning set  forth in  paragraph 4 of  the Recitals of
this Agreement.

     "Notice of Drawing" means the notice of drawing given  by the Borrower
pursuant to Section 1.02  substantially in the form  of Exhibit C  attached
hereto.

     "Payment Date" has  the meaning set  forth in Section 1.04(a)  of this
Agreement.

     "Prepayment Premium" has  the meaning set forth in Section  1.06(b) of
this Agreement. 

     "Responsible  Officer" means, as  to the  Borrower and  the Guarantor,
either  of  such corporation's  chief  executive  officer,  chief financial
officer  or  any  other  officer  having principal  responsibility  for the
financial affairs of such company.

     "Revolving  Loan  Availability   Period"  means  the  period  of  time
beginning on the Closing Date and ending on December 29, 1995.

     "Taxes"  has  the  meaning  set  forth  in  Section  1.05(a)  of  this
Agreement.

     "Term  Loan Period" means  the period  of time  beginning on  the date
eighteen  (18) months  after the Closing  Date and  ending on  the Maturity
Date.

     "Term Loan Conversion Date" means the date eighteen (18) months  after
the Closing Date.

     "Total Assets" means the  value of all of the assets of  the Guarantor
on a consolidated basis using book value  except that the Vessels shall  be
included  in such  valuation  at  their Fair  Market Values  as  determined
pursuant to Section 1.06(a)(iii) of this Agreement.

     "Total  Loss" has  the meaning set  forth in  Section 1.06(a)  of this
Agreement. 

     "Vessel Value" has the meaning set forth in Section 1.06(a)(ii). 


                                 ARTICLE I

                                  The Loan

     Section 1.01  Amount.   Subject to the terms and conditions of Section
2.01  of this Agreement, the Lender agrees to make Advances to the Borrower
in an aggregate  principal amount  equal to the  lesser of  (1) 50%  of the
Vessel  Value determined  in  accordance  with Section  1.06(a)(ii)  and as
substantiated by  the appraisal to  be delivered to the  Lender pursuant to
Section 2.01(p) hereof and (2) USD 25,000,000 (the "Loan").

     Section  1.02   Revolving Loan Availability Period.   (a)   During the
Revolving Loan Availability  Period, the Lender agrees to make  Advances to
the Borrower from time to time on any  Business Day in the aggregate not to
exceed the  amount of  the Loan available  to the Borrower  referred to  in
Section  1.01 hereof.   All  Advances shall  be used  by  the Borrower  for
working capital and  other general corporate purposes.  Each  Advance shall
be  in  an integral  multiple  of One  Million United  States  Dollars (USD
1,000,000)  and no more than one Advance shall be made by the Lender during
any thirty  (30) calendar days.   Within the limits  referred to above, the
Borrower may borrow, prepay and reborrow under this Section 1.02(a).

     (b)   From and after the  Closing Date until the  Term Loan Conversion
Date,  the Borrower shall maintain  an average daily  outstanding principal
amount  of the  Loan of  no less  than USD 10,000,000  and, subject  to the
acquisition of the GALLOWAY by the Borrower and its addition to the lien of
the  Mortgage, there  shall  be  no less  than USD  25,000,000  outstanding
principal  amount of  the Loan from  December 29, 1995 until  the Term Loan
Conversion Date.

     (c)   The Borrower shall make  a request for an  Advance by sending to
the  Lender a written Notice of Drawing not later than 11:00 a.m., New York
Time, three (3) Business  Days prior to the date such Advance  is requested
setting forth the  date the Advance  is required  and the  bank account  or
accounts to  which the  Advance is  to be  remitted.   The first Notice  of
Drawing shall  be received by  the Lender no later than  three (3) Business
Days immediately preceding the Closing  Date.  All Notices of Drawing shall
be irrevocable.

     Section  1.03  Term  Loan Period.   (a)   On the Term  Loan Conversion
Date, all amounts outstanding under the Loan will be converted to a thirty-
six (36) month term  loan.  During the Term  Loan Period, the Lender  shall
make no further Advances to the Borrower hereunder.

     (b)  In the event that  the amount of the Loan outstanding on the Term
Loan Conversion Date is less than USD 10,000,000, the Borrower shall pay to
the Lender on the Term  Loan Conversion Date a non-utilization fee equal to
the  difference between  USD 10,000,000  and the  amount  of the  Loan then
outstanding, multiplied by two percent (2%).

     (c)   The Borrower  shall repay the  principal amount of  the Note  in
thirty-six (36) consecutive  monthly installments, each such installment to
be paid by the Borrower to the Lender on a Payment Date commencing November
25,  1996 and ending on  the Maturity Date.  The amount  of principal to be
repaid on each Payment Date shall be the amount necessary to amortize (over
thirty-six equal monthly  installments) sixty percent (60%) of  the balance
of  the  Loan  outstanding  on  the Term  Loan  Conversion  Date, provided,
however,  that  such  final  installment  shall  include  a  balloon amount
sufficient to discharge the accrued  and unpaid interest, unpaid  principal
and unpaid premium, if any, in respect of the Note.

     (d)  The  Loan shall be evidenced by  and repayable in accordance with
the terms hereof and of the Note.

     Section 1.04  Interest.

     (a)   The  Borrower shall  pay  interest, in  arrears, on  the  unpaid
principal amount  of the  Note from  the Closing  Date until the  principal
amount of  the  Note is  paid in  full on  the last  Business  Day of  each
calendar month, commencing June 30, 1995 to and including the Maturity Date
(each such date a "Payment Date") at a rate of interest per annum (computed
on the basis of a 365-day year and the actual number of days elapsed) equal
to the Interest Rate,  provided, however, that all interest accrued on  the
Loan and unpaid on the Maturity Date shall be paid on the Maturity Date. 

     (b)  The term "Interest Rate" shall  mean, for an Interest Period  (as
hereinafter defined), an  interest rate equal to  the LIBOR Rate  plus 2.5%
per annum, subject  to periodic  adjustment as provided below.   The  LIBOR
Rate shall  become effective as  of the date  of the first  Advance and the
corresponding  day  of  the   calendar  month  next  succeeding  each  such
determination  and  shall  continue   in  effect  to,  and   including  the
corresponding date of the next succeeding calendar  month.  If at any  time
the  Lender shall determine  that by reason of  circumstances affecting the
London interbank  market (i) adequate and reasonable means do not exist for
ascertaining the LIBOR Rate for  the succeeding Interest Period or (ii) the
making  or  continuance  of   the  Loan  at  the   LIBOR  Rate  has  become
impracticable as a result of a contingency occurring after the date of this
Agreement  which  materially and  adversely  affects  the  London interbank
market, the Lender  shall notify the Borrower.   As used in this Agreement,
"Interest  Period" shall  mean each  respective  and  successive one  month
calendar  period commencing  on the  Closing Date  or the  last day  of the
immediately  preceding  Interest  Period,  as  the case  may  be, provided,
however,  that (i) if any Interest Period includes a Payment Date, but does
not end on such date, then the principal amount of the Loan required to  be
paid on such date  shall have an  Interest Period ending  on such date  and
(ii) no  Interest Period  shall commence on,  or extend  past, the Maturity
Date of the Note.

     (c)  Any amount  of principal or any other amount due  hereunder which
is not  paid  when due,  whether  at stated  maturity, by  acceleration  or
otherwise, shall bear interest from  the date when due until such amount is
paid in  full, payable on demand, at a rate per annum equal at all times to
2% above the Interest Rate.

     (d)    In no  event  shall  any  interest rate  provided  for in  this
Agreement  or  the  Note exceed  the  maximum  rate permitted  by  the then
applicable law.   It  is the  intention of  the parties hereto  to strictly
comply  with  applicable  usury  laws;  accordingly,  it  is  agreed  that, 
notwithstanding any  provision to the  contrary in this  Agreement, in  the
Note, or in any other Loan Document,  in no event shall this Agreement, the
Note, or the other  Loan Documents be construed to charge, contract  for or
require the payment or permit the collection  of interest in excess of  the
maximum amount permitted by applicable law.  If any such excess interest is
contracted for, charged or received under this  Agreement, the Note or  the
other Loan  Documents, or in the  event that all  of the  principal balance
shall be  prepaid, so that  under any  of such circumstances  the amount of
interest contracted for, charged or received on the principal balance shall
exceed the maximum amount of interest  permitted by applicable law, then in
such event  (i)  the  provisions of  this Section 1.04(d)  shall govern and
control, (ii)   neither the Borrower nor any other  person or entity now or
hereafter liable  for the  payment thereof  shall be obligated  to pay  the
amount of such interest to  the extent that it is in  excess of the maximum
amount of  interest permitted  by applicable  law, (iii)   any  such excess
which may have been collected shall be  either applied as a credit  against
the  then unpaid  principal balance  or refunded  to the  Borrower, at  the
option of  the Lender,  and (iv) the  effective rate of  interest shall  be
automatically  reduced to  the maximum lawful  contract rate  allowed under
applicable  law  as  now  or  hereafter  construed  by  the  courts  having
jurisdiction thereof.  It is further  agreed that without limitation of the
foregoing, all calculations of the rate of interest contracted for, charged
or  received under  this Agreement, the Note  and the  other Loan Documents
which are made for the purpose of determining whether such rate exceeds the
maximum lawful  contract rate, shall  be made,  to the extent permitted  by
applicable law, by amortizing, prorating, allocating and spreading in equal
parts  during the  period  of the  full  stated  term of  the  indebtedness
evidenced hereby,  all interest  at  any time  contracted for,  charged  or
received from the Borrower  or otherwise by the  Lender in connection  with
such indebtedness; provided,  however, that if any applicable state  law is
amended or the law of the United States of  America preempts any applicable
state law,  so that it becomes  lawful for the Lender to  receive a greater
simple  interest per  annum rate  than is  presently allowed,  the Borrower
agrees that, on the effective date of  such amendment or preemption as  the
case may be, the lawful maximum hereunder shall be increased to the maximum
simple interest per annum  rate allowed by the higher of the  amended state
law or the law of the United States of America.

     Section 1.05  Payments.

     (a)   The payment obligations of  the Borrower under  the Note and all
other  amounts payable under this Agreement to the Lender shall be paid, in
immediately  available funds, to  the Lender at Chemical  Bank, 640 Madison
Avenue, New  York, New York 10021,  ABA No. 021-000-128,  for credit to the
account of The CIT Group/Equipment Financing,  Inc., Account No. 134-086460
(ref. Reading & Bates Offshore, Contract No. 08371), or at such other place
as the Lender  may designate, not more than  one (1) Business Day  prior to
the due date therefor, not later than the close of business on the due date
thereof, in lawful money of the United States.   All payments shall be made
(i) without set-off, counterclaim or condition and (ii) free  and clear of,
and without  deduction for or  on account of, any present  or future taxes,
levies, duties, imposts, charges,  fees, deductions or withholdings of  any
nature ("Taxes"), unless  the Borrower is required  by law or regulation to
make  payment subject to  any Taxes.   In  the event  that the  Borrower is
required  by  law or  regulation to  make any  deduction or  withholding on
account of any Taxes from any payment  due under this Agreement, then:  (a)
the Borrower shall notify  the Lender promptly as soon as it  becomes aware
of  such requirement and shall remit  promptly the amount of  such Taxes to
the appropriate taxation  authority, and in any event  prior to the date on
which penalties attach thereto; and (b) such payment shall  be increased by
such amount as  may be necessary to  ensure that the Lender  receives a net
amount,  free and clear  of all Taxes, equal  to the full  amount which the
Lender  would have received had such payment not been subject to such Taxes
(other  than  Excluded  Income  Taxes  as  such  term  is  defined  below).
Notwithstanding the  foregoing, the Borrower  shall not be  liable for,  or
required to  pay, any  Taxes which are  overall income  or franchise  taxes
imposed  at any time on  the Lender in the  United States of America or any
state or  local government or  taxing authority  in any state  in which the
Lender conducts business  ("Excluded Income Taxes").  Each such  payment or
reimbursement by the Borrower  shall be net of any  credit or the value  of
any deduction  received by the Lender  thereon to the  extent that the same
can  be  determined by  the  Lender  (as  certified by  the  Lender to  the
Borrower,  such certificate to  be conclusive absent manifest  error).  The
Borrower shall indemnify the Lender  against any liability of the Lender in
respect of such  Taxes (but  not Excluded  Income Taxes)  and shall  supply
copies of applicable tax receipts.

     (b)  If any payment to  be made by the Borrower shall become due on  a
day which  is not a Business  Day, such payment  shall be made on  the next
succeeding Business Day. 

     (c)  Each payment to be made on a Payment Date and all prepayments and
other payments shall be applied  first to the payment of accrued and unpaid
interest on  the Note, then to  the payment of all  other amounts due under
this Agreement and the Loan Documents, and the balance  shall be applied to
the payment of principal due under the Note. 

     (d)   The  Borrower shall indemnify the  Lender on  demand against all
costs,  expenses,  liabilities  and   losses  (including  funding   losses)
sustained or incurred by the Lender  as a result of or in  connection with:
(a) the  occurrence and/or  continuance of any  Event of  Default (or event
which, with the  giving of notice and/or lapse  of time or other applicable
condition might constitute an Event of Default); and/or (b) any judgment or
order which relates to any sum due hereunder being  expressed in a currency
other than the currency  expressed to be due hereunder and as a result of a
variation  in rates  of exchange between  the rate at which  such amount is
converted into such  other currency  for the purposes  of such  judgment or
order and the rate prevailing on the date of  actual payment of such amount
pursuant thereto; and/or (c) any postponement of the Closing Date occurring
because of  one or more of  the conditions precedent  set forth  in Section
2.01 shall  not have  been satisfied  by the  Borrower or the  Guarantor or
waived by the Lender; and/or (d) any payment of principal of or interest on
the Note made on a date which is not a Payment Date.  The above indemnities
are  separate  and  independent  obligations  of  the  Borrower  and  apply
irrespective of any indulgence granted by the Lender.

     Section 1.06  Prepayment.  

     (a)  Mandatory Prepayment.

     (i)  Total Loss.  If  there shall have occurred a Total Loss as herein
defined, on the earlier of (x) the date insurance  proceeds are received or
(y)  ninety (90) days after the  date of occurrence of  the Total Loss, the
Borrower shall (A) prepay the outstanding principal balance under the  Note
in an amount equal  to the outstanding principal amount of  the Loan on the
date of  prepayment (without  counting  any amount  being prepaid  on  such
date), multiplied  by a  fraction, the  numerator of  which is  Fair Market
Value  of  the  lost Vessel  as  most  recently  determined  under  Section
1.06(a)(iii) and  the denominator of which  is the Vessel  Value as of such
date  (including the lost Vessel), and (B) pay  accrued interest thereon to
the date of such prepayment together with any other amount due hereunder or
under any Loan Document.  The Lender shall apply payments received pursuant
to  this Section  1.06(a)(i)  in accordance  with Section  1.05(c)  hereof,
provided, however, that  the principal repayments shall be applied  so that
the remaining installments of principal,  if any, are reduced on a pro rata
basis,  such  reduction to  be  confirmed by  the Lender  in  a certificate
delivered  to the  Borrower, which certificate  shall be  conclusive absent
manifest error.  No Prepayment Premium shall be payable with respect to any
Mandatory  Prepayments  made  by  the  Borrower  pursuant  to this  Section
1.06(a)(i).  "Total Loss"  means in  respect of  a Vessel  (i)   actual  or
constructive or compromised or arranged total loss of such Vessel;  or (ii)
requisition  for  title  or  other compulsory  acquisition  of such  Vessel
otherwise than by requisition for hire; or (iii)  capture, seizure, arrest,
detention or  confiscation of such  Vessel by any government  or by persons
acting  or purporting to act on behalf of any government unless such Vessel
is  released from such capture, seizure,  arrest, detention or confiscation
within thirty days of the occurrence thereof.  A Total Loss shall be deemed
to have occurred (a)  in  the event of an actual total loss of a Vessel, on
the date of  such loss,  (b)   in the  event of  damage to  a Vessel  which
results in a  constructive or  compromised or arranged  total loss  of such
Vessel, on the  date of  the occurrence of  the event  giving rise  to such
damage, or (c)   in the case  of any event  referred to in clauses  (ii) or
(iii) above, on the date of the occurrence of such event.   In the event of
any  Total Loss or requisition of a Vessel, the Borrower shall give written
or  telegraphic notice to the  Lender not later than ten  (10) days after a
Responsible  Officer  of   the  Borrower  has  actual  knowledge   of  such
occurrence. 

      (ii)   Vessel Value.   On or before the  Closing Date and again on or
      before the  Term Loan Conversion  Date, the Lender  shall arrange  to
      have the Fair Market Value of each  of the Vessels determined at  the
      Borrower's expense by an  independent appraisal firm nominated by the
      Lender.   Each such valuation shall be based on the Fair Market Value
      of each Vessel.  The aggregate of the most  recent valuations of each
      Vessel then wholly  owned by the Borrower is hereinafter  referred to
      as  the "Vessel  Value".  If,  on the Term Loan  Conversion Date, the
      outstanding principal amount  of the Loan shall  exceed fifty percent
      (50%) of Vessel  Value, then the Borrower shall either  prepay within
      five  days of  Lender's demand  the amount of  the Loan  necessary to
      restore the ratio referred to herein together with payment of accrued
      interest thereon  or provide additional  security for  the Loan which
      shall be  acceptable in  the sole  opinion of  the  Lender for  these
      purposes.    The  Lender shall  apply  payments received  under  this
      Section  1.06(a)(ii)  in  accordance  with  Section  1.05(c)  hereof,
      provided, however, that the  principal repayments shall be applied so
      that the  remaining  installments of  principal,  if  any,  shall  be
      reduced on  a pro rata basis,  such reduction to  be confirmed by the
      Lender in  a certificate delivered to the  Borrower which certificate
      shall be conclusive absent manifest error.

      (iii)   Fair Market  Value.  The  "Fair Market Value"  of any  Vessel
      shall be  the  value determined  by the  independent  appraisal  firm
      chosen by  the Lender in  accordance with  clause (ii)  above on  the
      basis  of an arm's-length purchase by a willing  buyer from a willing
      seller and  without consideration  of any  drilling contract, charter
      party or  other vessel  employment contract.   The  appraisal  firm's
      valuation shall be made without physical inspection, unless otherwise
      required by the Lender.

     (b)   Voluntary  Prepayment during  Term Loan Period.   (i)  After the
eighteenth (18th)  Payment Date of the  Term Loan Period, the  Borrower may
prepay  in full or in  part in amounts of  not less than USD 1,000,000, its
indebtedness  under the Note on the next Payment Date after giving at least
thirty  (30) Business Days prior  notice of such  prepayment and payment to
the Lender  of accrued  and unpaid  interest under  the Note and  all other
amounts due under  this Agreement and the other Loan Documents  including a
premium in an  amount equal to  one percent  (1%) of  the principal  amount
prepaid (the  "Prepayment Premium").   Any  notice of  prepayment hereunder
shall be irrevocable.

     (ii)   The  Lender  shall  apply payments  received pursuant  to  this
Section  1.06(b)  in  accordance  with  Section  1.05(c) hereof,  provided,
however,  that  the  principal  repayments  shall be  applied  so  that the
remaining installments of principal, if any, shall be reduced on a pro rata
basis,  such  reduction to  be confirmed  by  the Lender  in  a certificate
delivered to  the Borrower,  which certificate  shall be conclusive  absent
manifest error.

     (c)   Voluntary Prepayment during Revolving  Loan Availability Period.
During  the  Revolving Loan  Availability  Period the  Borrower may  prepay
amounts outstanding under  the Loan on the following terms  and conditions:
(i)  the Borrower shall give the  Lender at least three  (3) Business Days'
prior written notice of  its intent to  prepay the Loan  and the amount  of
such prepayment; (ii)   such  repayments are  made no  more than  once each
calendar month;  and  (iii) each  prepayment of  the  Loan shall  be  in  a
principal amount of at least USD 1,000,000.  No Prepayment Premium shall be
due for any prepayment under this Section 1.06(c).

     Section 1.07  Security.  All amounts due hereunder  and under the Note
shall be secured by the  following, each in form and substance satisfactory
to  the Lender  (A) the  Mortgage,  (B) the  Earnings  Assignment, (C)  the
Insurance Assignment and (D) the Guaranty.

     Section 1.08   Facility Fee.  The  Borrower has paid  to the Lender  a
non-refundable facility fee of USD 125,000.

     Section  1.09   Revolving Loan  Fee.   The Borrower  shall pay  to the
Lender a  revolving loan fee of one half of one percent (.50%) per annum on
the unused portion of the Loan  for the period from the Closing Date to the
Term  Loan  Conversion  Date,  computed   on  the  difference  between  USD
25,000,000 and the  average daily outstanding balance of the  Loan, payable
quarterly in  arrears on the last  Business Day  of each calendar  quarter,
beginning June 30, 1995.

                                 ARTICLE II

                            Conditions Precedent

     Section 2.01   Conditions Precedent  to First Advance.   The  Lender's
execution  and  delivery of  this  Agreement and  the  making of  the first
Advance is subject to the following conditions having been satisfied in the
opinion of the Lender on or prior to the Closing Date:

     (a)   Each of this  Agreement and the other Loan  Documents shall have
been  duly  authorized  and  executed  with  original counterparts  thereof
delivered to the Lender.

     (b)  The Lender shall have received copies of the charters or drilling
contracts respecting  the  McCLINTOCK certified  as  to  correctness  by  a
Responsible Officer of the Borrower or the Guarantor. 

     (c)  The Borrower and the Guarantor shall have delivered to the Lender
evidence of  good standing, certificates  of incumbency  and duly certified
resolutions  of their  respective Boards  of Directors  and all  such other
corporate  documentation  authorizing  each  of  them  to  enter  into  the
transactions contemplated by this Agreement and the other Loan Documents.

     (d)   The  Lender shall  have received  opinions  from counsel  to the
Borrower and  the Guarantor,  as the  case may  be, and an  opinion of  its
special counsel, Haight, Gardner, Poor & Havens, each in form and substance
satisfactory to the Lender. 

     (e)   The representations  and warranties contained in  Article III of
this Agreement and in each other Loan Document shall be true on the Closing
Date with the same effect as though such representations and warranties had
been made  on and  as of such  date, and no  Event of  Default specified in
Article IV hereof and no event which, with the lapse  of time or the notice
and lapse of  time specified in  Article IV  hereof, would  become such  an
Event of  Default, shall  have  occurred and  be continuing  or shall  have
occurred at the completion of the making of the Loan, and the  Lender shall
have received  satisfactory certificates signed by a Responsible Officer of
the Borrower  and the Guarantor,  as to  all questions of  fact involved in
this condition.

     (f)  The Lender shall have received interim financial statements dated
as  of the period ending on March  31, 1995 for the Guarantor prepared on a
consolidated basis and in accordance  with generally accepted United States
accounting principles, certified by a Responsible Officer of the Guarantor,
and the  results  set forth  therein shall  be consistent  in all  material
respects with the forecasted trends otherwise provided by the Guarantor  to
the Lender.  

     (g)  There shall have been no material adverse change in the business,
financial  condition or operations  of the Borrower or  the Guarantor since
December 31, 1994.

     (h)  The Lender shall have received evidence that the person specified
to  act as agent for service of process for the Borrower, and the Guarantor
pursuant to Section 5.03 has agreed to so act.

     (i)   The Lender  shall have received  a certificate  of the Guarantor
signed by an officer in charge of  environmental affairs and safety of  the
Guarantor as to  compliance by each of the  Borrower and the Guarantor with
all environmental, safety and public health laws and regulations applicable
to each  of  the Borrower  and  the Guarantor,  without limitation  of  the
foregoing,  all other  laws and  regulations affecting  or relating  to the
Vessels, the non-compliance with which would have a material adverse effect
on  the business, properties  or condition (financial or  otherwise) of any
thereof. 

     (j)  The McCLINTOCK shall be duly registered in the name and ownership
of the Borrower under the laws and flag of The United States of America.

     (k)  The Borrower shall have provided evidence of insurance maintained
by the Borrower  on the McCLINTOCK, in  form and substance  satisfactory to
the  Lender,  from  insurance  underwriters  providing  such  coverage  and
conforming with the  requirements of Section 1.18 of the  Mortgage together
with a  broker's opinion  meeting the  requirement of  Section 1.20  of the
Mortgage. 

     (l)  The  Lender shall have received evidence  dated no later than ten
(10) days  prior to the Closing Date of the McCLINTOCK's classification, as
A-1, self-elevating drilling unit, free of recommendations affecting class.

     (m)   The Mortgage shall  have been  duly executed  and delivered  and
shall constitute  a first preferred  ship mortgage lien  on the  McCLINTOCK
under the laws  of The United  States of America  and shall have been  duly
filed under  those laws at  the Vessel  Documentation Office of the  United
States Coast Guard, Port of Houston, Texas.

     (n)  Financing statements or other documents necessary to perfect  the
Lender's security  interests under any of the Loan Documents  in the United
States, the  jurisdiction of  incorporation  of any  of the  Borrower,  the
Guarantor or any other relevant jurisdiction shall have been filed.

     (o)   The Lender  shall have  received a  report appraising  the  Fair
Market Value of the McCLINTOCK prepared by M.E.L. Valuations, Inc.  in form
and substance satisfactory to the Lender.

     (p)  The McCLINTOCK  shall not have been  the subject of a Total  Loss
and shall not have sustained any material damage to its condition since the
date of the inspection and survey reports therefor delivered  to the Lender
pursuant  to Section  2.01(o), or  materially decreased  in value  from the
value  attributed thereto  as set  forth in  the appraisal  report therefor
delivered to the Lender pursuant to Section 2.01(o).  

     (q)    The  Lender  shall  have  received  such  other  documents  and
instruments it may  reasonably request, in each case in form  and substance
reasonably satisfactory to it.

     Section  2.02   Conditions  Precedent  to Subsequent  Advances.    The
Lender's obligations to make any Advance subsequent to the first Advance in
an amount greater  than 50% of the  Fair Market Value of  the McCLINTOCK is
subject to the following conditions having been satisfied in the opinion of
the Lender on or prior to the date of each such Advance:

     (a)  The  GALLOWAY shall be duly registered  in the name and ownership
of the Borrower under the laws and flag of the United States of America.

     (b)  The Borrower shall have provided evidence of insurance maintained
by  the Borrower on the GALLOWAY, in form and substance satisfactory to the
Lender, from insurance  underwriters providing such coverage and conforming
with  the requirements  of Section  1.18 of  the Mortgage  together with  a
broker's opinion meeting the requirement of Section 1.20 of the Mortgage.

     (c)   The Lender  shall have  received evidence  as to  the GALLOWAY'S
classification,   as   A-1,   self-elevating   drilling   unit,   free   of
recommendations affecting class.

     (d)  The  Mortgage shall  have been supplemented to  add the  GALLOWAY
and,  as so supplemented,  the Mortgage shall constitute  a first preferred
ship  mortgage lien on the GALLOWAY under the  laws of the United States of
America  and shall  have been  duly filed  under those  laws at  the Vessel
Documentation Office  of the United  States Coast Guard,  Port of  Houston,
Texas.

     (e)  The Lender shall have received copies of the charters or drilling
contracts  respecting  the  GALLOWAY  certified  as  to  correctness  by  a
Responsible Officer of the Borrower or the Guarantor.

     (f)   The  Lender  shall have  received a  report appraising  the Fair
Market Value of  the GALLOWAY prepared by  M.E.L. Valuations, Inc. in  form
and substance satisfactory to the Lender.

     (g)  The GALLOWAY shall not have been the subject  of a Total Loss and
shall not  have sustained  any material damage to  its condition  since the
date of  the inspection and survey reports therefor delivered to the Lender
pursuant  to Section  2.02(f), or  materially decreased  in value  from the
value  attributed thereto  as set  forth in  the appraisal  report therefor
delivered to the Lender pursuant to Section 2.02(f).

     Section  2.03  Waiver of  Conditions Precedent.  All of the conditions
precedent  contained in  this Section  2 are  for the  sole benefit  of the
Lender  and  the Lender  may waive  any  or  all of  them  in its  absolute
discretion.

                                ARTICLE III

                 Representations, Warranties and Covenants  

     Section  3.01    Representations  of  the  Borrower.     The  Borrower
represents and warrants that:

     (a)    The  Borrower  is  a corporation,  duly  organized  and validly
existing in good standing under the laws  of the State of Oklahoma and  has
the requisite power and authority (i) to carry on its business as presently
conducted, (ii)  to enter into and perform its obligations  under each Loan
Document  to which  it is  a party,  (iii) to  borrow moneys,  and (iv)  to
mortgage the Vessels  and give the security  provided in the Loan Documents
to which it is a party.

     (b)   The execution, delivery and performance by  the Borrower of each
Loan Document to which it is a party, and any other instrument or agreement
provided for  by this Agreement to which the Borrower is a party, have been
duly  authorized  by  all  necessary  corporate  action,  do  not   require
stockholder approval other than such as has been duly obtained or given, do
not  or  will  not  contravene   any  of  the  terms  of  its  articles  of
incorporation or by-laws, and  will not violate any provision of law  or of
any  order of  any  court or  governmental  agency or  constitute (with  or
without notice or lapse of time or both) a default under, or result (except
as  contemplated  by  this Agreement)  in  the  creation  of  any  security
interest, lien, charge or encumbrance upon any of  its properties or assets
pursuant to, any agreement, indenture  or other instrument to which it is a
party or by which it may be bound; this Agreement and each Loan Document to
which it  is a party has  been duly executed and  delivered by the Borrower
and  constitutes its  legal,  valid  and binding  agreement  or instrument,
enforceable  in  accordance  with  the  respective   terms  thereof.    The
enforceability  of this  Agreement, however, is  subject to  all applicable
bankruptcy, insolvency, reorganization, moratorium and other laws affecting
the rights of creditors and to general equity principles. 

     (c)   There are no  suits or  proceedings pending or  to its knowledge
threatened against or affecting the Borrower which if adversely  determined
would  have  a  material  adverse  effect  upon  its  financial  condition,
operations or business.

     (d)   The registered office  of the Borrower is  c/o The Prentice-Hall
Corporation  System Oklahoma,  Inc., 115  S.W. 89th Street,  Oklahoma City,
Oklahoma   73139-8511.  The principal place of business of the Borrower and
the place  where all  records  relating  to the  transactions  contemplated
hereby, including records relating to the chartering and operations of  the
Vessels are kept is 901 Threadneedle, Houston, Texas 77079.

     (e)   Other than such  as have  been obtained, no  license, consent or
approval  of any  Governmental  Agency or  other  regulatory  authority  is
required for the  execution, delivery and performance of this  Agreement or
any Loan Document  or any instrument contemplated  herein or therein.   The
Borrower  is   the  holder  of  all   certificates  and  authorizations  of
governmental  authorities required by  law to  enable it  to engage  in the
business transacted by it.

     (f)  No part of the proceeds  of the Loan will be used for any purpose
that violates the provisions of any of Regulation G, T, U or X of the Board
of  Governors of the Federal Reserve System or any other regulation of such 
Board of  Governors.   The  Borrower is  not  engaged in  the  business  of
extending credit to others for the purpose of purchasing or carrying margin
stock within  the meaning  of Regulations  G, T,  U and  X of the  Board of
Governors of the Federal Reserve System.   If requested by the Lender,  the
Borrower will furnish to the Lender in connection with the Loan hereunder a
statement in conformity  with the requirements of Federal Reserve  Form U-1
referred  to in  said Regulation  U.   The Borrower  is not  an "investment
company" or a company  "controlled" by an "investment company" (as each  of
such terms is  defined or used  in the Investment  Company Act of 1940,  as
amended).  No proceeds of the  Loan will be used to acquire any security in
any transaction  which is subject to  Sections 13 and  14 of the Securities
Exchange Act of 1934, as amended. 

     (g)   The  McCLINTOCK  is and  will be  on  the Closing  Date and  the
GALLOWAY will  be on the date it is acquired by the Borrower:  (i) owned by
the Borrower,  free and clear of  all liens, charges  and rights  of others
except the  Mortgage; (ii) duly documented  under the laws  and flag of The
United  States of America in the  name of the Borrower;  and (iii) in class
without recommendations and in good condition, working order and repair.

     (h)   The Borrower  has filed or caused  to be  filed all tax  returns
required by any applicable jurisdiction which are required  to be filed and
has paid or caused to be paid all taxes as shown on such returns  or on any
assessment received by it to the extent that such taxes have become due and
except  as  to such  taxes  being contested  in  good faith  by appropriate
proceedings for which adequate reserves are being maintained.  The Borrower
has set up  reserves to the extent  believed by it  to be adequate for  the
payment  of additional taxes for years  which have not been  audited by the
respective tax authorities.

     (i)  The Borrower has no subsidiaries.  The Borrower is a wholly-owned
indirect subsidiary of the Guarantor. 

     (j)   The  Borrower has not incurred  any indebtedness  except such as
generally incurred from time to time in the ordinary course of business and
it has not incurred any inter-company debts to  the Guarantor or any of its
affiliates, except as  disclosed in writing to the Lender  and subordinated
to the Loan. 

      (k)   (i)  The Borrower  has duly complied  in all  material respects
      with,  and the Vessels  and its other properties  and operations are,
      or, in respect  of the GALLOWAY, when  acquired by the Borrower, will
      be in compliance in all material respects with, the provisions of all
      applicable  environmental,   health  and  safety   laws,  codes   and
      ordinances and  all rules  and regulations  promulgated thereunder of
      all Governmental  Agencies unless  such compliance  would violate the
      laws  or regulations  of the  jurisdiction in  which the  Vessels are
      operating.

           (ii)  As  of the date of this  Agreement, except as disclosed to
      the Lender  in writing, the Borrower has received no  notice from any
      Governmental  Agency,  and  has no  knowledge,  of any  fact(s) which
      constitute  a violation  of any  applicable environmental,  health or
      safety  laws, codes  or  ordinances, and  any  rules  or  regulations 
      promulgated thereunder of  all Governmental Agencies, which relate to
      the use  or ownership  of the  Vessels or other  properties owned  or
      operated by the Borrower.

           (iii)    The Borrower  has  been issued  all  required  permits,
      licenses,  certificates and  approvals  of all  Governmental Agencies
      relating to  (a) air emissions,  (b) discharges to  surface water  or
      ground  water,  (c)  noise  emissions,  (d)  solid  or  liquid  waste
      disposal,   (e)  the   use,  generation,   storage,   transportation,
      treatment, recycling or disposal of Hazardous Substances or (f) other
      environmental,  health  or  safety  matters  which  are material  and
      necessary  for the  ownership or  operation of  the Vessels  or other
      properties owned  or  operated by  the  Borrower  and  such  permits,
      licenses, certificates and approvals are in full force and effect  on
      the date of this Agreement.

           (iv)  Except as disclosed  to the Lender in writing, to the best
      of  the Borrower's  knowledge,  except in  accordance  with  a  valid
      governmental permit, license, certificate or approval, there has been
      no  spill  or  unauthorized  discharge  or release  of  any Hazardous
      Substance to  the  environment  at, from,  or  as  a  result  of  any
      operations on the Vessels or other properties and operations owned or
      operated by the Borrower required to be reported to any  Governmental
      Agency.

           (v)   Except as  disclosed to the  Lender in  writing, there has
      been no  material complaint,  compliance order, compliance  schedule,
      notice  letter, notice of  citation or other similar  notice from any
      applicable environmental agency  which concerns the operations of the
      Vessels or other properties owned or operated by the Borrower.

     (l)  All representations and warranties made by the Borrower herein or
pursuant to  any Loan  Document  to which  it is  a party  or made  in  any
certificate or written statement  delivered pursuant hereto or thereto  (i)
do not contain  any untrue statement  of or omit  to state a material  fact
necessary to make the statements contained herein or therein not misleading
and (ii) shall survive the making of  the Loan hereunder and the  execution
and delivery to the Lender of the Note and any other Loan Document to which
it is a party.

     Section 3.02  Covenants of  the Borrower.  After the date of execution
of this Agreement and until payment in full of the Note and  performance by
the Borrower and  the Guarantor of their respective obligations  under this
Agreement and the Loan Documents, the Borrower agrees that it will:

     (a)  promptly inform the Lender of any event which constitutes or will
constitute, by  giving of  notice or lapse of  time, or  both, an Event  of
Default  or adversely affect  its ability to fully  perform its obligations
under this Agreement and the Loan Documents to which it is a party;

     (b)  pay and discharge, or cause to be paid and discharged, any taxes,
assessments and governmental charges or levies that may be imposed upon the
Borrower or  upon its income or profits or upon any of its properties prior
to  the date on which penalties attach thereto and all lawful claims which, 
if unpaid, might become a lien or charge upon their  respective properties;
provided, however,  that this  provision  shall not  be deemed  to  require
payment of  any taxes, assessments, governmental  charges, levies or claims
while the Borrower contests the validity thereof by appropriate proceedings
in good faith and so long as it shall have set aside  on its books adequate
reserves with respect thereto;

     (c)   preserve and maintain, or  cause to be preserved  or maintained,
(i)  its  existence in  good  standing  in the  jurisdictions  where  it is
incorporated  and in  all jurisdictions  where it  is currently  conducting
business, and (ii) all its rights, privileges and franchises thereunder;

     (d)  file or cause to be filed in such offices as shall be required or
appropriate  under any applicable  Uniform Commercial Code of  any State or
any other statute of any other jurisdiction, and in such manner and form as
the Lender may require  or as  may be reasonably  necessary or  appropriate
under  applicable  law, any  financing  statement  or  statements  or other
instruments that  may be  reasonably  necessary or  desirable or  that  the
Lender  may  request in  order  to  create,  perfect,  preserve,  continue,
validate or satisfy the Lender's liens on and security interests and rights
in collateral  arising out  of or related  to this Agreement  and any  Loan
Document;

     (e)   promptly notify the Lender of any proposed change in location of
its  registered office  or the  office where  its records  are kept  or any
principal place of business located within the United States of America for
purposes of effecting its obligations under Section 3.01(d) hereof;

     (f)   promptly obtain and upon the reasonable request,  deliver to the
Lender all  authorizations, approvals,  consents and  licenses and renewals
thereof required  under any applicable  law or regulation  with respect  to
this Agreement, the  Loan Documents,  and the Vessels  and it  shall comply
with the terms of the same;

     (g)   as  soon  as practicable  after  the  date of  execution  of the
Mortgage,  (i) cause  the Mortgage to  be duly recorded under  the laws and
regulations of  the United States  of America at  the Vessel  Documentation
Office of the  United States Coast Guard, Port  of Houston, Texas; and (ii)
cause  a certified  copy of the  Mortgage to be placed  aboard the Vessels,
together with the required Notice of Mortgage provided for therein;

     (h)   promptly notify  the Lender of  any suit  or proceedings brought
against the Borrower or the Guarantor or, to the knowledge of the Borrower,
threatened against or affecting either the Borrower or the Guarantor which,
if  adversely determined,  would have  a material  adverse effect  upon the
financial  condition,  operations  or  business  of  the  Borrower  or  the
Guarantor;

     (i)   upon  the  request  of  the  Lender,  give  the  Lender  or  any
representative  of the Lender  access during normal business  hours to, and
permit  the  Lender  or such  representative  to  inspect,  all  properties
belonging to the  Borrower and permit such representative to  examine, copy
and make extracts from such  books, records and documents in the possession
of  the  Borrower,  relating  to  the  affairs  of  the  Borrower, as  such 
representative may reasonably request;

     (j)   comply  with  and use  its  best efforts  to cause  its  agents,
contractors and sub-contractors  (while such persons are  acting within the
scope of  their contractual relationship  with the Borrower)  to so  comply
with all material, applicable environmental, health and safety laws,  codes
and ordinances, and all rules and regulations promulgated thereunder of all
Governmental Agencies; and with the terms and conditions of all  applicable
permits, licenses, certificates  and approvals of all Governmental Agencies
now or hereafter granted or obtained with  respect to the Vessels or  other
properties owned or  operated by the Borrower unless such  compliance would
violate  the laws or regulations of the jurisdictions  in which the Vessels
are operating.

           (i)  The Borrower will use its best efforts and safety practices
      to prevent  the unauthorized release, discharge,  disposal, escape or
      spill  of Hazardous  Substances  on  or about  the Vessels  or  other
      properties owned or operated by the Borrower.

           (ii)  The  Borrower shall notify the Lender, in  writing, within
      five (5) Business Days of any of the following events occurring after
      the date of this Agreement:

                 (A)  Any written notification made by the Borrower to  any
            federal, state or local environmental agency required under any
            federal, state or  local environmental  statute, regulation  or
            ordinance  relating to  a  spill or  unauthorized  discharge or
            release of any Hazardous Substance to the environment at, from,
            or as  a  result of  any operations  on, the  Vessels or  other
            properties and operations owned or operated by the Borrower;

                 (B)  Knowledge by a Responsible Officer of the Borrower of
            receipt of service by the Borrower of any complaint, compliance
            order,   compliance   schedule,  notice   letter,   notice   of
            violation,  citation or  other similar  notice or  any judicial
            demand  by any  court,  federal, state  or  local environmental
            agency,  alleging (i)  any  spill,  unauthorized  discharge  or
            release  of any Hazardous Substance to the environment from, or
            as  a  result  of the  operations  on,  the  Vessels  or  other
            properties owned or operated by the Borrower or (ii) violations
            of  applicable  laws,  regulations  or  permits  regarding  the
            generation,   storage,  handling,   treatment,  transportation,
            recycling, release or disposal of Hazardous Substances on or as
            a result of  operations on the Vessels or other  properties and
            operations owned or operated by the Borrower.

                 (C)   It is  understood  by the  parties hereto  that  the
            aforementioned notices are solely for the Lender's information,
            may  not otherwise be  required by any federal,  state or local
            environmental laws,  regulations or  ordinances, and  are to be
            considered confidential information by the Lender.

                 (D)  The term  "environmental agency" as used herein shall
            include, but not be limited to, the United States Environmental
            Protection Agency,  the United  States Coast  Guard, the United
            States   Minerals  Management   Service,   the   United  States
            Department  of  Transportation (in  its  administration  of the
            Hazardous Materials Transportation Act, 49 U.S.C. Sec. 1801, et
            seq.) and  other  analogous or  similar  Governmental  Agencies
            regulating or administering statutes, regulations or ordinances
            relating  to  or imposing  liability  or  standards  of conduct
            concerning   the   generation,    storage,   use,   production,
            transportation,  handling,  treatment,  recycling,  release  or
            disposal of any Hazardous Substance.

           (iii)   The  Borrower hereby  agrees to  indemnify and  hold the
      Lender  harmless  from  and  against  any  and  all  claims,  losses,
      liability,  damages  and injuries  of  any  kind  whatsoever asserted
      against  the Lender  with respect  to or  as a  direct result  of the
      presence,  escape, seepage, spillage, release,  leaking, discharge or
      migration from either Vessel or other properties owned or operated by
      the  Borrower   of   any  Hazardous   Substance,  including   without
      limitation,  any  claims asserted  or  arising  under  any applicable
      environmental,  health and safety laws, codes and ordinances, and all
      rules  and regulations  promulgated  thereunder of  all  Governmental
      Agencies,  regardless of  whether  or  not caused  by or  within  the
      control of the Borrower subject to the following:

                 (A) It  is the parties' understanding that the Lender does
            not  now,  has never  and  does  not intend  in  the  future to
            exercise  any  operational  control  or  maintenance  over  the
            Vessels  or  any  other  properties  and  operations  owned  or
            operated by the Borrower, nor has it in the past, presently, or
            intends in the future to, maintain an ownership interest in the
            Vessels or  any  other properties  owned  or  operated  by  the
            Borrower except as may arise  upon enforcement of the  Lender's
            rights under the Mortgage. 

                 (B)   Should, however,  the Lender  hereafter exercise any
            ownership interest  in or operational control  over the Vessels
            or  any other  properties owned  or operated  by the  Borrower,
            e.g., including  but not limited to,  through foreclosure, then
            the above  stated indemnity and hold  harmless shall be limited
            with respect to any  actions or failures to  act by the  Lender
            subsequent  to exercising such interest or operational control,
            to the extent such action or inaction by the Lender is found by
            a court  or Governmental Agency with  competent jurisdiction to
            have caused or made worse any condition for which liability  is
            asserted, including  but not limited to,  the presence, escape,
            seepage, spillage,  leaking, discharge or migration  on or from
            the  Vessels  or  other  properties  owned or  operated  by the
            Borrower of any Hazardous Substance.

                 (C)   The indemnity and  hold harmless  contained in  this
            Subsection (j) shall  not extend to the Lender in  its capacity
            as an  equity investor in the  Borrower or as  an owner  of any
            property or interest as to  which the Borrower is also an owner
            but only to  its capacity  as a  lender, a  holder of  security 
            interests, or a beneficiary of security interests.

     (k)  not, without  the prior written consent of the Lender,  (i) sell,
transfer, lend, lease or otherwise dispose of the whole  or, in the opinion
of the Lender, any  substantial part of  its business, property or  assets,
whether  by a single transaction or by a series of transactions (related or
not) unless Standard  & Poor's Ratings Group ("Standard &  Poor's") affirms
in writing  that such transaction or series of transactions will not result
in  a downgrade of the Guarantor's implied senior debt rating, or result in
such  debt being  placed on  credit watch  for negative  implications, (ii)
change the management or stock ownership  of the Borrower, or  (iii) permit
the Vessels to be bareboat chartered for a period longer than twelve months
(including  any committed  extensions  or  renewals) to  an entity  not  an
affiliate of  the Guarantor;

     (l)   other than pursuant to  or permitted by those  Loan Documents to
which it  is a  party it  will not  create, assume  or permit to  exist any
encumbrance  upon  any of  its  property or  assets (whether  now  owned or
hereafter acquired);

     (m)  not, without the prior written consent of the Lender: (i) conduct
or  manage any business or  activity other  than as presently  conducted or
managed  or as  is contemplated by this  Agreement and  the Loan Documents;
(ii) incur  or  agree  to incur  or  issue any  indebtedness nor  make  any
commitments  other than (A)  in the ordinary course  of day-to-day trading;
and  (B) to  the Guarantor  or  its affiliates,  the  payment of  which are
expressly  subordinated to the  Loan pursuant to documentation  which is in
form and  substance satisfactory  to  the Lender;  and (iii)  liquidate  or
dissolve or consolidate or amalgamate with, or merge into, any other entity
unless Standard  & Poor's affirms in writing that such transaction will not
result in  a downgrade  of the  Guarantor's implied  senior debt  rating or
result in such debt being placed on credit watch for negative implications;

     (n)   not, without the prior  written consent of the  Lender repay any
stockholders' loan nor make any loans or advances to any other person;

     (o)  not, without the prior written consent of  the Lender, acquire by
purchase or otherwise or  make any investment  in any firm, corporation  or
person not a wholly owned subsidiary of the Borrower whether by acquisition
of stock or indebtedness, by loan, guarantee or otherwise;

     (p)  at all times  conduct its business in  a manner so as  to qualify
and to maintain its  qualification to register the  Vessels in the registry
and under the flag of the United States of America;

     (q)   immediately upon receipt  from the United States  Coast Guard or
other  governmental official having jurisdiction over the Vessels of notice
in respect of the invalidity  or possible invalidity of the registration of
the  Vessels  or  the  disqualification  or  possible  disqualification  to
maintain the  registration of the Vessels,  (i) give written  notice to the
Lender  of the receipt of  such notice and  (ii) take all action  as may be
required by the Lender to effect the proper registration of the Vessels;

     (r)   if  in the sole  reasonable opinion of the  Lender, the Lender's 
security may otherwise  be imperilled and at the Lender's  written request,
effect a change of registration of the Vessels; 

     (s)   forthwith upon demand by  the Lender and at  the Borrower's sole
cost and expense,  execute and provide all such  assurances and do all acts
and  things as  the Lender or  any receiver in its  absolute discretion may
require for: (i) perfecting or protecting the security created (or intended
to be created) by any of the Loan Documents, including, without limitation,
granting in favor  of the Lender a  security interest covering the security
created  (or intended  to be  created) by  any of  the Loan  Documents with
respect to any obligations of the  Borrower hereafter owing to  the Lender;
or (ii) preserving or protecting  any of the rights of the Lender under any
of  the  Loan  Documents;  or   (iii)  facilitating  the  appropriation  or
realization of  any of  the collateral  assigned or  granted to the  Lender
under any of  the Loan Documents and  enforcing the security constituted by
any of  the Loan  Documents on  or at any  time after the  same shall  have
become  enforceable;  or  (iv)  the  exercise of  any  power,  authority or
discretion vested in the Lender under any of the Loan Documents; 

     (t)    deliver  to  the  Lender such  financial  or  other information
relating to it, any  of the transactions contemplated  by this Agreement or
any of the Loan Documents, as may be requested by the Lender;

     (u)    upon  the  request  of the  Lender,  give  the  Lender  or  any
representative of the  Lender at any reasonable time, access to the Vessels
and permit the Lender or such representative to inspect the Vessels and any
part thereof, as the Lender or such representative may reasonably  request,
all at the sole cost and expense  of the Borrower; provided, however,  that
any inspection of the Vessels  shall be subject to any consents required by
operators under  applicable drilling contracts or  by applicable Government
Agencies; which consents the Borrower shall use its best efforts to obtain;

     (v)  obtain an agreement in form and substance reasonably satisfactory
to the  Lender from  any  person retained  by or  for  the benefit  of  the
Borrower  relating to the  management of the Vessels  that any indebtedness
incurred  by such person for  the benefit of  the Vessels and  any fees and
expenses paid to such manager shall be subject and  subordinate to the lien
of  the  Mortgage,  excluding  masters  or  other persons-in-charge,  crew,
stevedores and salvage vessels.

     Section 3.03  Covenants of the Guarantor.  After the date of execution
of this Agreement and until payment in full of the Note and  performance by
the Borrower, its obligations under this Agreement and the Loan  Documents,
the Guarantor agrees that it will: 

     (a)  deliver, or  shall cause to be delivered, to  the Lender at least
two  copies and  as many  additional  copies as  the Lender  may reasonably
require from time to time of, (i) its audited annual consolidated financial
statements  (including  the  balance  sheet  and  income  statement  of the
Borrower),  in  a form  consistent with  generally  accepted  United States
accounting principles  and practices  consistently applied, as  soon as  is
practicable after the  same have been  issued but  in any  case within  one
hundred twenty (120) days of the  end of its fiscal year audited by  Arthur
Andersen,  L.L.P. or other auditors as may be acceptable to the Lender that 
the  consolidated  financial statements  present  fairly,  in  all material
respects, the financial  position of the Guarantor as of the  date thereof,
and  an  unaudited  worksheet  reflecting  the  balance  sheet  and  income
statements of  Arcade Drilling AS  and the consolidated  balance sheet  and
income statements of the Guarantor (excluding Arcade Drilling AS), (ii) its
quarterly consolidated  financial statements  (including the balance  sheet
and income  statement of the Borrower) in a form  consistent with generally
accepted  United States  accounting principles  and  practices consistently
applied,  as soon as is practicable after the end of each financial quarter
but in any case within ninety (90) days of the end of its financial quarter
certified  by  one  of  its  Responsible  Officers  that  the  consolidated
financial  statements  present   fairly,  in  all  material  respects,  the
financial position of the Guarantor as of the date thereof and an unaudited
worksheet reflecting the quarterly balance  sheet and income statements  of
Arcade Drilling AS and the quarterly consolidated balance sheet and  income
statements  of the  Guarantor  (excluding Arcade  Drilling AS),  (iii) such
financial  or other  information relating  to it,  any of  the transactions
contemplated by this Agreement  or any of the other Loan Documents,  as may
reasonably be  requested by the Lender  or generally made available  to its
other creditors, its shareholders and to any governmental authorities; 

     (b)   not, on a consolidated basis,  allow its ratio of Long Term Debt
to Total Assets to exceed .28 to 1 at the end of any calendar quarter;
 
     (c)  maintain a consolidated Cash Flow Coverage Ratio  of at least 2.0
to 1.0 at the end of each fiscal year;

     (d)   maintain  and cause  the Borrower  to maintain  all permits  and
certificates  which  are   material  and  necessary  under  all  applicable
environmental, safety and public  health laws and regulations applicable to
itself or the Borrower and the Vessels, and all  other laws and regulations
affecting or relating to the Vessels;

     (e)  deliver to the Lender, contemporaneously with the delivery to the
Lender of the annual and quarterly financial statements specified in clause
(a) above,  its certificate  (in  form and  substance satisfactory  to  the
Lender), signed by  one of its Responsible  Officers, (i) stating that such
officer has reviewed the relevant  terms of this Agreement,  the other Loan
Documents and all other agreements of the Borrower and  the Guarantor which
evidence  indebtedness  for   borrowed  money,  lease  or  other  financial
obligations on  the part  of either  entity in  excess of USD  500,000 (the
"Financial Obligation Agreements") and has  made or caused to be made under
his supervision, a review of the transactions and condition of the Borrower
and the Guarantor  during the relevant fiscal quarter  or year, as the case
may be,  and that such  review has not disclosed the  existence during such
period, nor does  such Responsible Officer have knowledge of  the existence
as  at the  date  of such  certificate,  of  any condition  or  event which
constitutes  an  event  of default  under  any  of  the  Loan  Documents or
Financial Obligation Agreements, or which, after notice or lapse of time or
both would constitute  an event of default under  any of the Loan Documents
or Financial  Obligation Agreements,  or  if any  such condition  or  event
existed  or exists, specifying  the nature and period  of existence thereof
and what action the Guarantor or the Borrower has taken or proposes to take
with respect thereto, (ii) setting forth in form and detail satisfactory to 
the  Lender  the  calculations  respecting  compliance  with the  financial
covenants  of  this  Agreement  and  (iii)  for  purposes  of  the   annual
certificate only, attaching and certifying as true and correct copies,  the
insurance certificates and brokers opinions required to be provided to  the
Lender pursuant to Section 1.18 and Section 1.20 of the Mortgage;

     (f)  deliver, or  shall cause to be delivered, to  the Lender at least
two copies  and as  many  additional copies  as the  Lender may  reasonably
require  from time  to  time, within  thirty  (30) days  of  each quarterly
financial statement referred to in Section 3.03(a) above, a report (in form
and substance reasonably  satisfactory to the Lender) on each  drilling rig
directly or indirectly owned, controlled or managed by the Borrower stating
the then current employment; operator contracted with; the then current day
rate; contract expiration date; average utilization during the past quarter
and the average  net day rate earned by such  rig for the past  quarter for
the  days  it  was  under  contract;  all   such  information  to  be  kept
confidential by  the Lender and not  disclosed to any  third parties, other
than  the Lender's  outside  auditors  or as  required by  applicable  law,
without the prior written consent of the Guarantor;

     (g)  not, without  the prior written consent of the Lender,  (i) sell,
transfer, lend, lease or otherwise dispose of the whole  or, in the opinion
of the Lender,  any substantial part of  its business, property  or assets,
whether by a single transaction or by a series of transactions, (related or
not), or  (ii) change the  management of  the Guarantor, unless Standard  &
Poor's affirms in writing that  such sale, transfer, etc. or such change in
management will not result in a downgrade of the Guarantor's implied senior
debt rating  or  result in  such debt  being  placed on  credit  watch  for
negative implications; and

     (h)  not, without the prior written consent of the Lender: (i) conduct
or manage any  business or  activity other than  as presently  conducted or
managed  or as is contemplated by this Agreement and the Loan Documents; or
(ii)  liquidate or  dissolve or  consolidate or  amalgamate with,  or merge
into, any other  entity unless  Standard & Poor's affirms  in writing  that
such  transaction will  not  impair the  Guarantor's  implied  senior  debt
rating.


                                 ARTICLE IV

                             Events of Default

     If any of the following events shall occur and be continuing, (each an
"Event of Default"):  

     A.  the Borrower shall fail to pay any principal of or interest on the
Note, which failure shall continue for five days after the date when due;

     B.  any representation or  warranty made by either the Borrower or the
Guarantor  herein  or  made  in  any  certificate  or  financial  statement
furnished to the Lender hereunder or under any of  the Loan Documents shall
prove  to  have been  incorrect,  or  shall be  breached,  in  any material
respect; 

     C.   default  in the performance of  any agreement,  covenant, term or
condition contained herein  or in any Loan Document  to be performed by the
Borrower or the  Guarantor, as the case may be, (other  than any covered in
paragraph A of this Article  IV and Sections 3.02 (l), 3.03 (b) and 3.03(c)
hereunder)  which shall continue  for 30  days after  the giving  of notice
thereof to  the Borrower,  or the  Guarantor, as  the case may  be, by  the
Lender;

     D.  default in the  performance of the covenants contained in Sections
3.02(l), 3.03(b) and 3.03(c);

     E.  a Default under the Mortgage;

     F.   any payment  default under any loan  agreement, credit agreement,
security agreement, guaranty  agreement, lease agreement or other agreement
now existing or hereafter entered into by the Borrower  or the Guarantor or
any  of  its  subsidiaries shall  have  occurred and  shall  not  have been
remedied;

     G.  any license, consent or approval of any governmental body or other
regulatory  authority  required for  the  making  and  performance  of this
Agreement or any instrument contemplated hereby or thereby shall have  been
revoked, withdrawn, materially modified or withheld or shall otherwise fail
to remain in full force and effect;

     H.  Any of the following events shall occur:

           (i)  Either the Borrower or the Guarantor commences a  voluntary
      case under Title 11 of the United States Code as now or  hereafter in
      effect, or any successor thereto (the "Bankruptcy Code"); or 

           (ii)  an  involuntary case is commenced against the  Borrower or
      the Guarantor under the Bankruptcy Code and relief is ordered against
      the Borrower or the Guarantor or the petition is controverted  but is
      not  dismissed   or  stayed  within   ninety  (90)   days  after  the
      commencement of the case; or

           (iii)   a custodian (as  defined in  the Bankruptcy Code)   or a
      similar  official  is  appointed  for,  or takes  charge  of,  all or
      substantially  all of the  property of the Borrower  or the Guarantor
      and such appointment is not terminated within ninety (90) days; or

           (iv)  either  the Borrower or the Guarantor commences  any other
      proceeding  under any  reorganization,  arrangement,  readjustment of
      debt,  relief  of debtors,  dissolution,  insolvency,  liquidation or
      similar law  of any  jurisdiction  relating to  the Borrower  or  the
      Guarantor (whether now or hereafter in effect), or there is commenced
      against  the Borrower  or  the  Guarantor any  such  proceeding which
      remains undismissed or unstayed for  a period of ninety  (90) days or
      the Borrower or the Guarantor  is adjudicated insolvent or  bankrupt;
      or  the Borrower  or the  Guarantor fails to  controvert in  a timely
      manner  any  such  case  under  the  Bankruptcy  Code  or  any   such
      proceeding, or any order of  relief or other order approving any such
      case or proceeding is entered; or 

           (v)  either the Borrower or the Guarantor by  any act or failure
      to act indicates  its consent to, approval of or acquiescence  in any
      such  case or proceeding or in the appointment of any custodian of or
      for  it or any substantial part  of its property or  suffers any such
      appointment to  continue undischarged  or unstayed  for a  period  of
      ninety (90) days; or

           (vi)     either the  Borrower or  the Guarantor makes  a general
      assignment for the benefit of creditors; or

           (vii)  any corporate action is  taken by either the  Borrower or
      the Guarantor for the purpose of effecting any of the foregoing.

     I.   an  order,  judgment or  decree  shall  be entered,  without  the
application, approval  or consent of  the Borrower or the  Guarantor by any
court   of   competent   jurisdiction,   approving   a   petition   seeking
reorganization  of the Borrower  or the Guarantor seizure  or attachment of
all  or  a  substantial part  of  the  Borrower's  or  the  Guarantor's  or
respective  assets,  and  such order,  judgment  or decree  shall  continue
unstayed and in effect for any period of ninety (90) consecutive days; or


     J.   judgments or orders  for the payment  of monies in  excess of USD
1,000,000 in aggregate shall be rendered against the Borrower, or in excess
of  USD 5,000,000 against the  Guarantor and such judgments or orders shall
continue unsatisfied, unstayed or unbonded for a period of 30 days;

then  the Lender  may by  written notice  to the  Borrower (1)  immediately
terminate  the  commitment  of  the  Lender hereunder  or  (2)  declare the
principal  of, and interest accrued to the date of such declaration on, the
Note together with all other amounts due hereunder or under any of the Loan
Documents, to be forthwith due and payable, whereupon the same shall become
forthwith  due  and payable  (provided, however,  no notice  or declaration
shall  be required  and such amounts shall  be immediately  due and payable
upon the occurrence  of an event described in  Article IV(H) or (I) hereof)
and (3)  exercise any remedies  to which  it may  be entitled  by any  Loan
Document or by applicable law.

                                 ARTICLE V

                               Miscellaneous

     Section 5.01  Notices.  All notices, requests and  demands shall be in
writing  (including telecopier  transmission)  given  to or  made  upon the
respective parties hereto as follows:

     In the case of the Borrower or the Guarantor, at

          901 Threadneedle, Suite 200
          Houston, Texas 77079

          Attention:  Chief Financial Officer
          Telecopier:  (713) 496-0285 

     In the case of Lender, at

          The CIT Group/Equipment Financing, Inc.
          1211 Avenue of the Americas
          New York, New York  10036

          Attention:  (a)  Senior Vice President - Credit
                           Telecopier: (212) 536-1385

                      (b)  Legal Department
                           Telecopier: (212) 536-1388

     with a copy to:

          The CIT Group/Equipment Financing, Inc.
          300 Grand Avenue, 3rd Floor
          Los Angeles, CA  90071

          Attention:  (a)  Vice President - Credit
                           Telecopier (213) 628-7083

                      (b)  Legal Department
                           Telecopier (213) 628-7083

or in such  other manner as  any party  hereto shall  designate by  written
notice to  the other parties hereto.   All such  notices shall be effective
upon  delivery or  3 days after  being deposited in the  United States mail
with  postage prepaid  certified, return receipt  requested in  a correctly
addressed wrapper,  or upon  receipt  if delivered  to Federal  Express  or
similar courier  company or transmitted  by telefax  during normal business
hours, except  that all notices,  requests and demands to  the Lender shall
not be  effective until  received by  the Lender.    All notices,  demands,
requests, communications  and other documents delivered  hereunder or under
the  Loan Documents,  unless submitted  in the  English language,  shall be
accompanied by certified English translation thereof.

     Section 5.02   No Waiver.   No failure  on the part of  the Lender  to
exercise, and no delay in exercising, any  right hereunder shall operate as
a waiver thereof, nor shall any single or partial exercise by the Lender of
any right  hereunder preclude any other or further exercise  thereof or the
exercise of any other right.

     Section 5.03   Applicable Law and  Jurisdiction.  (a)   This Agreement
and the Loan Documents provided for herein (including,  but not limited to,
the validity and  enforceability hereof and thereof) shall be  governed by,
and construed in accordance with, the  laws of the State of New York, other
than  conflict  of laws  rules  thereof.   Any  legal action  or proceeding
against the Borrower or the Guarantor with respect to this Agreement or any
Loan Document may be brought  in the courts of  the State of New  York, the
U.S. Federal Courts in such state, sitting in the County of New York, or in
the courts of any other jurisdiction where such action or proceeding may be
properly  brought,  and  each of  the  Borrower  or  the  Guarantor  hereby
irrevocably accepts the jurisdiction of  such courts for the purpose of any
action or  proceeding.   Each  of the  Borrower  and the  Guarantor  hereby
designates  and   irrevocably  appoints  and   empowers  The  Prentice-Hall
Corporation System,  Inc. (the  "Process Agent"), currently located  at 500
Central Avenue, Albany,  New York 12206-2290 in each case as its authorized
agent to accept, receive and  acknowledge for and on behalf of each and its
property service of any and all process which may be served but only in any
action,  suit or proceeding of the nature referred to above in the State of
New York and further agrees that  failure of such firm to give the Borrower
and the Guarantor, as the case may be, any notice of any such service shall
not  impair  or affect  the  validity of  such service  or of  any judgment
rendered in any action or proceeding based  thereon.  Each of the  Borrower
and  the Guarantor  hereby irrevocably  authorizes and directs  the Process
Agent to accept  such service on its behalf.  Each of  the Borrower and the
Guarantor further  irrevocably consents to  the service of  process out  of
said courts  by the  mailing thereof  by the  Lender by U.S.  registered or
certified  mail postage  prepaid to the  party to be served  at its address
designated in Section 5.01.  Each of  the Borrower and the Guarantor  agree
that a final  judgment in any action or  proceeding shall be conclusive and
may be enforced in any other jurisdiction by suit on the judgment or in any
other  manner provided by law.   Nothing in this Section  5.03 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 or  the  Guarantor  or  their  respective
properties in the courts of any other jurisdiction.  To the extent that the
Borrower  or the Guarantor has  or hereafter may acquire  any immunity from
jurisdiction  of any  court  or  from any  legal process  (whether  through
service of  notice, attachment  prior  to judgment,  attachment in  aid  of
execution, execution  or otherwise) with  respect to either  itself or  its
respective  property,  each  of  the  Borrower  and  the  Guarantor  hereby
irrevocably  waive such immunity  in respect of its  obligations under this
Agreement  and the  other Loan  Documents.   Each of  the Borrower  and the
Guarantor  hereby irrevocably  waive  any  objection which  it may  now  or
hereafter have  to the laying  of venue  of any suit,  action or proceeding
arising out of or  relating to this Agreement or any Loan  Document brought
in the Supreme Court  of the State of  New York, County of New  York or the
U.S.  District Court  for  the Southern  District of  New York,  and hereby
further  irrevocably  waives  any claim  that  any  such  suit,  action  or
proceeding brought  in any such  court has been brought  in an inconvenient
forum.

     (b)   THE LENDER AND THE BORROWER AND THE  GUARANTOR IRREVOCABLY WAIVE
ALL RIGHT  TO A  TRIAL BY  JURY IN  ANY ACTION, PROCEEDING  OR COUNTERCLAIM
ARISING OUT OF OR  RELATING TO THIS AGREEMENT, THE  NOTE OR ANY OTHER  LOAN
DOCUMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.


     (c)  If  for the  purposes of  obtaining a  judgment in  any court  it
becomes necessary  to convert  the sum  due hereunder  or under any  of the
other  Loan  Documents  or  under  any  instrument  delivered hereunder  or
thereunder in  United States  Dollars into  another  currency, the  parties
hereto agree,  to the  fullest extent  permitted by  law, that the  rate of
exchange  used shall  be that  at which in  accordance with  normal banking
procedures the Lender would purchase United States Dollars with such  other
currency on the Business Day  preceding that on which the final judgment is
given.  The obligation of  the Borrower or the Guarantor in  respect of any 
sum due to the Lender hereunder or under any of the Loan Documents or under
any instrument delivered hereunder or thereunder shall, notwithstanding any
judgment in currency  other than United States Dollars, be  discharged only
to the extent  that on the Business Day following  receipt by the Lender of
any sum adjudged  to be so  due in such other  currency, the Lender  may in
accordance with  normal banking  procedures purchase  United States Dollars
with such  other currency;  if the United States  Dollars so  purchased are
less than  the sum originally due  to the Lender  in United States Dollars,
the  Borrower  and  the Guarantor  agree,  as  a  separate  obligation  and
notwithstanding  any such  judgment, to indemnify  the Lender  against such
loss and  if  the  United  States  Dollars  so  purchased  exceed  the  sum
originally  due to the Lender, in United States  Dollars, the Lender agrees
to remit to the Borrower or the Guarantor, as the case may be, such excess.

     Section 5.04  Severability.   In the event that any provision  of this
Agreement  is held to  be void  or unenforceable  in any  jurisdiction, all
other provisions  shall remain unaffected and  be enforceable in accordance
with their terms in such jurisdiction, and all provisions of this Agreement
shall remain unaffected  and shall be enforceable in accordance  with their
terms in all other jurisdictions.

     Section 5.05   Amendment.   Neither this Agreement  nor any  provision
hereof, including  without limitation this  Section 5.05,  may be  amended,
modified,  waived,  discharged  or  terminated  orally,  but  only  by   an
instrument in writing  signed by the party against which enforcement of the
amendment, modification, waiver, discharge  or termination is sought.  This
Agreement shall be binding  upon and inure to the benefit of  the Borrower,
the Guarantor and  the Lender and their respective successors  and assigns,
except that neither  the Borrower or the Guarantor  shall have the right to
assign their respective rights hereunder or any interest herein without the
prior written consent of the Lender.

     Section 5.06  Assignment and Participation.  The Lender shall have the
right to  assign or grant participations in all or  any portion of the Loan
outstanding under this Agreement or the Note to any affiliate of the Lender
or  to any foreign, federal  or state banking institution, savings and loan
institution or finance company upon  thirty (30) days written notice to the
Borrower of such assignment or participation.


     Section 5.07   Costs, Expenses and Taxes.   The Borrower agrees to pay
on demand  all reasonable fees,  costs and expenses in  connection (i) with
the  preparation,   execution,  delivery,  administration,  amendment   and
enforcement  of this Agreement, the  Note, any other  Loan Document and any
other  documents  to  be  delivered  hereunder  and thereunder  (including,
without  limitation,  the  appraisal  and  inspection  and  survey  reports
required hereunder) and any amendment, modification or supplement hereto or
thereto,  including, without  limitation, the  reasonable fees  and out-of-
pocket  expenses  of  counsel for  the  Lender,  and  any  special  counsel
associated with  them,  and with  respect thereto  and  the filing  of  any
document or instrument in  connection with any of the foregoing, (ii)   the
fees  and expenses of counsel for advising the  Lender as to its rights and
responsibilities under  this  Agreement and  the transactions  contemplated
thereby after an Event  of Default or  an event which,  with the giving  of 
notice or lapse of time, or both, shall have occurred, and (iii)   with any
filing or  recording  of any  document  or instrument.   In  addition,  the
Borrower shall pay  any and all stamp  and other taxes (including,  without
limitation  penalties and  interest assessed  thereon) other  than Excluded
Taxes payable or determined to be payable in connection with the execution,
delivery or  performance of this Agreement  and the Loan  Documents and any
other documents to be delivered hereunder and thereunder and agrees to save
the Lender harmless from  and against any and all liabilities with  respect
to or resulting from any delay in paying or omission to pay such taxes.

     Section 5.08  Counterparts.   This Agreement may be executed in two or
more  counterparts, each of which shall constitute an  original, but all of
which, when taken together, shall constitute but one instrument.

     Section 5.09  Section Headings.   The headings of the various Sections
and subsections of this Agreement are for convenience of reference only and
shall not define or limit any of the terms or provisions hereof.

     Section 5.10   Merger.  THIS  AGREEMENT AND THE LOAN  DOCUMENTS EMBODY
THE ENTIRE AGREEMENT BETWEEN THE BORROWER AND THE GUARANTOR ON THE ONE HAND
AND THE  LENDER ON  THE  OTHER HAND  AND  SUPERSEDE ALL  PRIOR  AGREEMENTS,
REPRESENTATIONS AND UNDERSTANDINGS, IF ANY,  RELATING TO THE SUBJECT MATTER
HEREOF AND THEREOF.

     IN WITNESS WHEREOF,  the parties hereto have caused this  Agreement to
be duly executed as of the day and year first above written.


                                    READING & BATES CORPORATION


                                    By: ____________________________
                                          Name:  T. W. Nagle
                                          Title: Vice President



                                    READING & BATES OFFSHORE, LIMITED


                                    By:  ____________________________
                                          Name:  T. W. Nagle
                                          Title: Vice President and
                                                  Treasurer


                                    THE CIT GROUP/EQUIPMENT
                                          FINANCING, INC.


                                    By:  ____________________________
                                          Name:  Joseph M. Pitch
                                          Title: Vice President   




                                                                Exhibit A to
                                                              Loan Agreement


                            SECURED PROMISSORY NOTE

  USD 25,000,000                                                May 25, 1995

        The  undersigned  (the  "Borrower")  for  value   received,  hereby
  promises to pay to  the order of THE CIT  GROUP/EQUIPMENT FINANCING, INC.
  (the  "Lender")  or any  subsequent  holder hereof  the principal  sum of
  Twenty Five Million United States Dollars (USD 25,000,000) or such lesser
  amount as  may be loaned to  the Borrower pursuant to  the Loan Agreement
  dated as of May 25, 1995 among the Borrower, Reading & Bates Corporation,
  as Guarantor and the Lender (the "Loan Agreement").

                            PRINCIPAL AND INTEREST

        1.1   (a)   Interest on this Note shall be payable at the times and
  the rates as provided in Section 1.04 of the Loan Agreement.

        (b)   Subject  to  the terms  of  Section 1.5  hereof, in  case any
  payment  of  principal  or  interest is  not  paid  when due,  additional
  interest at the  rate determined as  provided in Section  1.04(c) of  the
  Loan Agreement  shall be  payable on  all overdue  principal and, to  the
  extent that the same may be lawful, on all overdue interest.

        1.2   Interest shall  be calculated as provided  in Section 1.04(b)
  of the Loan Agreement.

        1.3   The principal of this  Note shall be payable  in installments
  as provided in Section 1.03(c)  of the Loan Agreement and in such amounts
  as are set forth in Schedule 1 hereto.

        1.4   All principal,  interest, premium, if any,  and other amounts
  due hereunder  shall be payable in  lawful money of the  United States of
  America  in immediately available  funds to the Lender  at Chemical Bank,
  640 Madison Avenue, New  York, New York 10021,  ABA No. 021-000-128,  for
  credit to The CIT Group/Equipment Financing, Inc., Account No. 134-086460
  (Ref. Reading & Bates Offshore Contract No. 08371) as provided in Section
  1.05 of the Loan Agreement.

        1.5  In no event shall  any interest rate provided for in this Note
  exceed the maximum rate permitted by the then applicable law.   It is the
  intention  of  the Lender  and  the  Borrower  to  strictly  comply  with
  applicable usury  laws; accordingly,  it is agreed  that, notwithstanding
  any provision to the contrary in this Note, the Loan Agreement or  in the
  other  Loan Documents, in no event shall this Note require the payment or
  permit  the  collection  of  interest in  excess  of  the maximum  amount
  permitted  by applicable law.  If any  such excess interest is contracted
  for, charged or received under this Note, or in the event that all of the
  principal  balance  shall   be  prepaid,  so  that  under  any   of  such
  circumstances the amount of  interest contracted for, charged or received
  on  the principal  balance shall  exceed the  maximum amount  of interest
  permitted by  applicable law, then  in such event  (i) the provisions  of
  Section   1.04(d)  of  the  Loan  Agreement  shall  govern  and  control,
  (ii) neither the Borrower nor any other person or entity now or hereafter
  liable for  the payment thereof shall  be obligated to pay  the amount of
  such interest to the extent that it is in excess of the maximum amount of
  interest permitted  by applicable  law, (iii) any such  excess which  may
  have been collected shall be either applied as a  credit against the then
  unpaid principal balance  or refunded to  the Borrower, at the  option of
  the   Lender,  and  (iv)   the  effective  rate  of   interest  shall  be
  automatically reduced  to the maximum lawful contract  rate allowed under
  applicable  law  as  now  or hereafter  construed  by  the courts  having
  jurisdiction  thereof.     Without  limitation  of   the  foregoing,  all
  calculations  of the rate of interest contracted for, charged or received
  under this  Note which are  made for the  purpose of determining  whether
  such rate exceeds the maximum lawful contract rate, shall be made, to the
  extent permitted by applicable  law, by amortizing, prorating, allocating
  and spreading in equal parts during the period of the full stated term of
  the  indebtedness evidenced hereby,  all interest at  any time contracted
  for, charged or received from the Borrower or otherwise  by the Lender in
  connection  with  such  indebtedness;  provided,  however,  that  if  any
  applicable  state  law is  amended or  the  law of  the United  States of
  America preempts any applicable state law, so that  it becomes lawful for
  the Lender  to receive a greater  simple interest per annum  rate than is
  presently  allowed, on the effective date of such amendment or preemption
  as the  case may be, the  lawful maximum hereunder shall  be increased to
  the maximum simple  interest per annum rate allowed by  the higher of the
  amended state law or the law of the United States of America.

                                   SECURITY

        2.1   This Note is  the secured  promissory note  issued under  and
  pursuant to the  Loan Agreement and is secured by,  among other things, a
  U.S. First Preferred Fleet  Mortgage dated May 25,  1995  in favor of the
  Lender (the "Mortgage").  Reference is hereby made to  the Mortgage for a
  description of the  property thereby mortgaged, the nature and  extent of
  the security  afforded thereby  and the  rights of  the Borrower and  the
  Lender  with  respect  to  such security  as  provided  in the  Mortgage.
  Payment of this  Note may be demanded prior to  the maturity of this Note
  under certain circumstances  and conditions, in the manner, and  with the
  effect,  provided in  the Mortgage  or the  Loan Agreement.   A  true and
  complete  copy of  the form  of  the Loan  Agreement is  attached  to the
  Mortgage and made a part thereof.

        2.2   This Note evidences Advances made by the Lender under Section
  1.02 of the Loan Agreement.

                                 MISCELLANEOUS

        3.1   All parties hereto, including endorsers  hereof, hereby waive
  presentment for payment,  demand, protest and notice of protest  and non-
  payment  hereof and hereby  consent that any and  all securities or other
  property,  if  any, held  by or  for the  holders hereof  at any  time as
  security for this Note may be exchanged, released or surrendered and that
  the  time of  payment of  this  Note may  be extended,  all  in the  sole
  discretion of the holders hereof and without notice and without affecting
  in any manner the liability of the parties hereto.

        3.2   No course of  dealing between the Borrower and the  Lender in
  exercising any rights hereunder shall operate as a waiver of any right of
  any  holders except  to the  extent expressly  waived in writing  by such
  holder.

        3.3   Whenever any payment to be made  hereunder shall be due on  a
  day which is not a Business Day, such payments shall be made on the  next
  succeeding Business Day.

        3.4   Any notice to  be given pursuant to this  Note shall be given
  in accordance with Section 5.01 of the Loan Agreement.

        3.5   THIS  NOTE (INCLUDING, BUT  NOT LIMITED TO,  THE VALIDITY AND
  ENFORCEABILITY HEREOF)  SHALL BE GOVERNED BY AND  CONSTRUED IN ACCORDANCE
  WITH THE  LAWS OF THE STATE OF NEW  YORK, OTHER THAN THE CONFLICT OF LAWS
  RULES THEREOF.

        3.6   THE  BORROWER  HEREBY WAIVES  TRIAL BY  JURY IN  ANY JUDICIAL
  PROCEEDING  TO WHICH IT IS A PARTY INVOLVING, DIRECTLY OR INDIRECTLY, ANY
  MATTER  (WHETHER  SOUNDING IN  TORT,  CONTRACT OR  OTHERWISE) IN  ANY WAY
  ARISING OUT OF,  RELATED TO, OR CONNECTED  WITH THIS NOTE  OR ANY OF  THE
  LOAN DOCUMENTS.

        3.7   Capitalized terms  used in this  Note but not  defined herein
  shall have the meanings given to them in the Loan Agreement.

        IN WITNESS WHEREOF,  the Borrower has caused  this Note to  be duly
  executed the day and year first above written.

                                      READING & BATES OFFSHORE, LIMITED

                                      By:  ____________________________
                                      Name: T.W. Nagle
                                      Title: Vice President and Treasurer




                                                                Exhibit B to
                                                              Loan Agreement


                                   GUARANTY


        GUARANTY,  dated as  of  May  25, 1995,  made  by READING  &  BATES
  CORPORATION, a corporation  organized and existing under the laws  of the
  State of Delaware  (the "Guarantor") in favor of THE  CIT GROUP/EQUIPMENT
  FINANCING, INC., a  corporation organized and existing under the  laws of
  the State of New York (the "Lender").

        WHEREAS, READING & BATES OFFSHORE, LIMITED, an Oklahoma corporation
  (the "Borrower"),  wishes to  borrow funds in  an aggregate amount  up to
  USD 25,000,000 (the "Loan") from the Lender  pursuant to the terms of the
  Loan Agreement  dated as of  May 25,  1995 (as the  same may be  amended,
  supplemented  or  otherwise  modified  from  time  to   time,  the  "Loan
  Agreement") by and among the Borrower, the Guarantor and the Lender; and

        WHEREAS,  the Borrower is a wholly owned indirect subsidiary of the
  Guarantor and  it is to the  corporate benefit of the  Guarantor that the
  Borrower obtain the Loan; and

        WHEREAS, the Loan will be  evidenced by the promissory note of  the
  Borrower in favor of the Lender (as the same may be amended, supplemented
  as otherwise modified from time to time, the "Note"); and

        WHEREAS,  in order  to  induce the  Lender to  make  the Loan,  the
  Guarantor is prepared to guarantee the performance by the Borrower of its
  obligations under the Loan Agreement and the Note; and  

        WHEREAS,  the Lender is prepared to make the Loan in consideration,
  among other things, of such guaranty by the Guarantor;

        NOW,  THEREFORE, in  consideration of  the premises,  the Guarantor
  hereby agrees as follows:

        SECTION 1.   Guaranty.  As independent and additional  security for
  the Loan, the Guarantor hereby unconditionally and irrevocably guarantees
  the payment by the Borrower of all amounts due and to become due from the
  Borrower  under the Loan  Agreement and the Note  (the "Obligations") and
  agrees to  pay any and all  expenses incurred by the  Lender in enforcing
  any of its respective rights under this Guaranty. 

        SECTION  2.    Guaranty  Absolute.    (a)    The  Guarantor  hereby
  guarantees  that the Obligations will be paid strictly in accordance with
  the terms  of the Loan  Agreement and  the Note, regardless  of any  law,
  regulation  or order  now  or hereafter  in  effect in  any  jurisdiction
  affecting any  of such  terms or  the rights of  the Lender  with respect
  thereto.  The  liability of the  Guarantor under  this Guaranty shall  be
  absolute and unconditional irrespective of:

              (i)    any lack  of  validity or  enforceability of  the Loan
        Agreement, the Note  or any other  agreement or instrument  entered
        into between the Borrower, the Lender or the Guarantor;

              (ii)  any change in the time, manner or  place of payment of,
        or  in any other  term of,  all or any  of the Obligations,  or any
        other amendment or  waiver of or any consent  to departure from the
        Loan Agreement or the Note;

           (iii)  any other circumstance which might otherwise constitute a
        defense available to, or a discharge of, the Borrower in respect of
        the Obligations or the Guarantor in respect of this Guaranty.

        (b)  This Guaranty shall continue to be effective or be reinstated,
  as the case may be, if at any time any payment of any  of the Obligations
  is  rescinded or  must  otherwise  be returned  by  the Lender  upon  the
  insolvency, bankruptcy  or reorganization  of the Borrower  or otherwise,
  all as though such payment had not been made.

        SECTION  3.   Waiver.    The  Guarantor hereby  waives  promptness,
  diligence, notice of acceptance and any other notice with respect to  any
  of the  Obligations and this Guaranty and any requirement that the Lender
  or  any other  person exhaust any  right or  take any  action against the
  Borrower or any  other person  or entity or  any collateral.   This is  a
  guaranty of payment and not of collection only.

        SECTION  4.   Subrogation.    The Guarantor  will not  exercise any
  rights which it may acquire by way of subrogation under this Guaranty, by
  any  payment made hereunder or otherwise, until all the Obligations shall
  have been paid in full.  If any amount shall be paid to  the Guarantor on
  account  of such subrogation rights at any  time when all the Obligations
  shall not have  been paid in full, such amount shall be forthwith paid to
  the Lender  to be credited and  applied against the Obligations.   If (i)
  the Guarantor shall make payment to the Lender, of all or any part of the
  Obligations and  (ii) all  the Obligations  shall be  paid  in full,  the
  Lender  will,  at the  Guarantor's  request, execute  and deliver  to the
  Guarantor   appropriate   documents,   without   recourse   and   without
  representation  or warranty,  transferring to the  Guarantor any  and all
  rights the Lender, may have against the Borrower or necessary to evidence
  the  transfer by  subrogation to  the Guarantor  of  any interest  in the
  Obligations resulting from such payment by the Guarantor.

        SECTION 5.  Payments Free and  Clear of Taxes, Etc.  (a)  All  sums
  payable  by  the Guarantor  under  this  Guaranty, whether  of principal,
  interest,  fees or otherwise,  shall be paid  in full  without set-off or
  counterclaim and  in such amounts as  may be necessary in  order that all
  such payments (after deduction  or withholding for  or on account of  any
  present  or future  taxes, levies,  imposts, duties  or other  charges of
  whatsoever nature imposed by any Governmental Agency  or taxing authority
  thereof,  other than any tax  or fee on or  measured by the net income of
  the Lender; collectively the "Taxes") shall not be less than the  amounts
  otherwise specified to be paid under this Guaranty.

        (b)  A  certificate as  to any  additional amounts  payable to  the
  Lender under  this Section 5  submitted to  the Guarantor  by the  Lender
  shall show in  reasonable detail the amount payable and  the calculations
  used to  determine in good faith  such amount and  shall be deemed  prima
  facie correct.

        (c)   With  respect to  each  deduction or  withholding  for or  on
  account of any Taxes, the Guarantor shall promptly furnish  to the Lender
  such  certificates, receipts and  other documents as may  be required (in
  the reasonable judgment of the Lender) to establish any income tax credit
  to which any of the Lender may be entitled.

        SECTION  6.  APPLICABLE LAW  AND JURISDICTION.  (a)   THIS GUARANTY
  (INCLUDING,  BUT NOT LIMITED TO, THE  VALIDITY AND ENFORCEABILITY HEREOF)
  SHALL BE GOVERNED BY, AND  CONSTRUED IN ACCORDANCE WITH, THE LAWS  OF THE
  STATE OF NEW YORK, OTHER THAN  CONFLICT OF LAWS RULES THEREOF.  ANY LEGAL
  ACTION  OR PROCEEDING AGAINST THE GUARANTOR WITH RESPECT TO THIS GUARANTY
  MAY BE  BROUGHT IN THE COURTS OF THE  STATE OF NEW YORK, THE U.S. FEDERAL
  COURTS IN SUCH STATE, SITTING IN THE COUNTY OF NEW YORK, OR IN THE COURTS
  OF ANY OTHER JURISDICTION WHERE SUCH ACTION OR PROCEEDING MAY BE PROPERLY
  BROUGHT, AND THE GUARANTOR HEREBY IRREVOCABLY ACCEPTS THE JURISDICTION OF
  SUCH  COURTS FOR THE PURPOSE OF ANY  ACTION OR PROCEEDING.  THE GUARANTOR
  HEREBY DESIGNATES AND IRREVOCABLY APPOINTS AND EMPOWERS THE PRENTICE-HALL
  CORPORATION SYSTEM, INC. (THE "PROCESS AGENT"), CURRENTLY LOCATED AT  500
  CENTRAL  AVENUE, ALBANY, NEW  YORK 12206-2290 AS ITS  AUTHORIZED AGENT TO
  ACCEPT,  RECEIVE AND  ACKNOWLEDGE  FOR AND  ON  BEHALF OF  ITS  PROPERTY,
  SERVICE OF  ANY AND  ALL PROCESS  WHICH MAY  BE SERVED  BUT ONLY  IN  ANY
  ACTION,  SUIT OR PROCEEDING OF THE NATURE  REFERRED TO ABOVE IN THE STATE
  OF NEW  YORK AND  FURTHER AGREES THAT  FAILURE OF  SUCH FIRM TO  GIVE THE
  GUARANTOR ANY NOTICE OF ANY  SUCH SERVICE SHALL NOT IMPAIR OR  AFFECT THE
  VALIDITY OF  SUCH SERVICE OR OF  ANY JUDGMENT RENDERED  IN ANY ACTION  OR
  PROCEEDING BASED  THEREON.   THE GUARANTOR HEREBY  IRREVOCABLY AUTHORIZES
  AND DIRECTS THE PROCESS AGENT TO ACCEPT SUCH SERVICE ON ITS BEHALF.   THE
  GUARANTOR FURTHER IRREVOCABLY  CONSENTS TO THE SERVICE OF PROCESS  OUT OF
  SAID COURTS  BY THE MAILING THEREOF  BY THE LENDER BY  U.S. REGISTERED OR
  CERTIFIED MAIL POSTAGE PREPAID TO THE GUARANTOR AT ITS ADDRESS DESIGNATED
  IN SECTION 10 HEREOF.  THE GUARANTOR  AGREES THAT A FINAL JUDGMENT IN ANY
  ACTION OR PROCEEDING SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN ANY OTHER
  JURISDICTION BY SUIT ON THE  JUDGMENT OR IN ANY OTHER MANNER  PROVIDED BY
  LAW.  NOTHING IN THIS SECTION  6 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
  GUARANTOR OR  ITS PROPERTY IN THE  COURTS OF ANY OTHER  JURISDICTION.  TO
  THE EXTENT  THAT THE GUARANTOR HAS OR HEREAFTER  MAY ACQUIRE ANY IMMUNITY
  FROM JURISDICTION OF ANY COURT OR FROM ANY LEGAL PROCESS (WHETHER THROUGH
  SERVICE OF  NOTICE, ATTACHMENT PRIOR  TO JUDGMENT, ATTACHMENT  IN AID  OF
  EXECUTION, EXECUTION OR  OTHERWISE) WITH RESPECT TO EITHER ITSELF  OR ITS
  PROPERTY,  THE  GUARANTOR  HEREBY  IRREVOCABLY  WAIVES SUCH  IMMUNITY  IN
  RESPECT OF  ITS OBLIGATIONS UNDER  THIS GUARANTY.   THE GUARANTOR  HEREBY
  IRREVOCABLY  WAIVES ANY OBJECTION  WHICH IT MAY NOW  OR HEREAFTER HAVE TO
  THE LAYING  OF VENUE OF ANY SUIT, ACTION OR  PROCEEDING ARISING OUT OF OR
  RELATING TO THIS GUARANTY BROUGHT IN THE COURTS OF THE STATE OF NEW YORK,
  OR  THE U.S. FEDERAL COURTS IN  SUCH STATE, SITTING IN  THE COUNTY OF NEW
  YORK, AND HEREBY FURTHER IRREVOCABLY WAIVES ANY CLAIM THAT ANY SUCH SUIT,
  ACTION  OR PROCEEDING BROUGHT  IN ANY  SUCH COURT HAS BEEN  BROUGHT IN AN
  INCONVENIENT FORUM.

        (b)   THE LENDER AND THE GUARANTOR IRREVOCABLY WAIVE ALL RIGHT TO A
  TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR
  RELATING TO THIS GUARANTY OR THE TRANSACTIONS CONTEMPLATED HEREBY.

        SECTION 7.   Representations and Warranties.   The Guarantor hereby
  represents and warrants as follows:

        (a)  It is a corporation duly incorporated, validly existing and in
  good standing under the laws  of the State of Delaware, duly qualified to
  do business wherever its business or ownership of property requires it to
  be so qualified.

        (b)   The execution,  delivery and performance by  the Guarantor of
  this Guaranty  and  any  other  documents  contemplated  herein  and  the
  completion of all other  transactions herein contemplated are within  the
  Guarantor's  corporate authority,  are  in furtherance  of  its corporate
  purposes, have been duly authorized by all necessary corporate action and
  will  not contravene  any applicable  law or  regulation nor  violate the
  Guarantor's  Articles  of  Incorporation  or  By-Laws nor  any  agreement
  binding on the Guarantor nor any applicable law or regulation or order or
  decree of any governmental authority or agency of the State of Texas, the
  United States of America or the State of New York.

        (c)    This  Guaranty  is  supported  by  adequate  and  sufficient
  consideration, has  been validly signed  on behalf of  the Guarantor  and
  represents the valid and binding obligation of the Guarantor, enforceable
  in  accordance with  its terms  and will  not  result in  the Guarantor's
  liabilities  (including  the maximum  amount of  liabilities that  may be
  reasonably expected to result from all contingent liabilities and  giving
  effect  to rights  of contribution  and  subrogation) exceeding  the fair
  market  value  of  its  assets.   The  enforceability  of this  Guaranty,
  however,   is  subject   to   all  applicable   bankruptcy,   insolvency,
  reorganization,  moratorium  and  other  laws  affecting  the  rights  of
  creditors generally and to general equity principles.

        (d)   The  legality, validity,  enforceability or  admissibility of
  this Guaranty are  not subject to or conditional upon this Guaranty being
  filed,  recorded or enrolled with any governmental authority or agency or
  stamped  with any stamp, duty or similar  transaction tax of the State of
  Texas, the United States of America or the State of New York.

        (e)   There  are no  pending, or  to the  best  of the  Guarantor's
  knowledge, any threatened actions  or proceedings affecting the Guarantor
  or any  of the  Guarantor's subsidiaries  before any  court, governmental
  agency or  arbitrator in  any  country, which  may  materially  adversely
  affect the financial condition or operations of the Guarantor.

        (f)  The covenants, recitals, representations and warranties of the
  Guarantor set  forth in Section 3.03  of the Loan Agreement  are true and
  correct on the date hereof as if made on the date hereof.

        SECTION 8.  The Loan  Agreement and the Note.  The Guarantor hereby
  acknowledges receipt of the Loan Agreement and the Note in execution form
  and hereby consents and agrees to the Loan Agreement and  the Note and to
  all the terms and provisions thereof.

        SECTION  9.    Amendments, Etc.    No amendment  or  waiver  of any
  provision  of this Guaranty nor consent to any departure by the Guarantor
  therefrom  shall in any  event be  effective unless the same  shall be in
  writing  and signed by the Lender, and  then such waiver or consent shall
  be effective only in the  specific instance and for the  specific purpose
  for which given.

        SECTION  10.   Notices.   (a)    All notices,  requests,  consents,
  demands  and other  communications  provided for  or  permitted hereunder
  shall  be made as required in Section  5.01 of the Loan Agreement, except
  that notices to the Lender shall not be effective until received.

        (b)  Any of the parties hereto may change its respective address by
  notice in writing given to the other parties to this Agreement.

        SECTION 11.   No Waiver; Remedies.   No failure on the  part of the
  Lender 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.  The remedies herein provided are cumulative
  and not exclusive of any remedies provided by law.

        SECTION  12.  Continuing  Guaranty.  This Guaranty  is a continuing
  guaranty and shall (i) remain  in full force and effect until  payment in
  full  of the  Obligations and payment  in full  of all  other amounts due
  under this Guaranty,  (ii) be binding upon the Guarantor,  its successors
  or assigns, as  the case may be, and (iii) inure to the benefit of and be
  enforceable by  the Lender and its respective successors, transferees and
  assigns,  provided, however,  that the  Guarantor may  not  transfer this
  Guaranty  or any  part of  it without  the prior  written consent  of the
  Lender.

        SECTION 13.  Capitalized Terms.  All capitalized terms used in this
  Guaranty  which are not defined  herein shall have the  meanings given to
  them in the Loan Agreement.

        IN  WITNESS WHEREOF, the Guarantor  has duly executed and delivered
  this Guaranty, as of the date first above written.


                                      READING & BATES CORPORATION


                                      By:     __________________________
                                      Name:   T. W. Nagle
                                      Title:  Vice President



  ACCEPTED:

  THE CIT GROUP/EQUIPMENT FINANCING, INC.


  By:      _______________________________
  Name:   Joseph M. Pitch
  Title:  Vice President



                                                   Exhibit C to
                                                 Loan Agreement


                        NOTICE OF DRAWING

                                            _______________, 199_

   By Facsimile
   (213) 628-7083

   The CIT Group/Equipment Financing, Inc.
   300 South Grand Ave., 3rd Fl.
   Los Angeles, CA  90071
   Attention:  Vice President - Credit
               Vice President - Legal

   Ladies and Gentlemen:

        The  undersigned,  Reading  & Bates Offshore,  Limited, refers to the
   Loan Agreement dated as of May   , 1995 (the  "Loan  Agreement") among the
   undersigned as Borrower, Reading & Bates Corporation as Guarantor  and the
   Lender and hereby gives you irrevocable notice pursuant to Section 1.02(c)
   of the Loan Agreement that the undersigned hereby requests an Advance under
   the Loan Agreement, and in that connection sets forth below the information
   relating to  such Advance (the "Proposed Advance"):

        (i)       The date of the  Proposed Advance is ________ ___, 1995.

        (ii)      The amount of the Proposed Advance is USD _____________.

        (iii)     The bank account to which the Proposed Advance is to be
                  remitted is as follows:

        (iv)      The proceeds of the Proposed Advance will be used by the
                  undersigned  for working capital and for other corporate
                  purposes.

        The  undersigned hereby certifies that the following are true on  the
   date hereof, and will be true on the date  of the Proposed Advance:

        (A)  the  representations  and warranties  contained in
             Section  3.01  of  the  Loan  Agreement  will   be
             correct,  before and  after giving  effect  to the
             Proposed Advance  and  to the  application of  the
             proceeds therefrom,  as though  made on and  as of
             such date;

        (B)  no Default or Event  of Default will have occurred
             and  be  continuing,  or  will  result  from  such
             Proposed Advance or  from the  application of  the
             proceeds therefrom; and

        (C)  no  material  adverse  change has  occurred  since
             [date of most recent quarterly statement], in  the
             business, operations,   properties,  prospects  or
             condition (financial or otherwise) of the Borrower
             or the Guarantor.

        If the Proposed Advance fails to take place or is delayed for any
   reason (other than attributable to the Lender), the undersigned hereby
   agrees to indemnify  the Lender against any loss incurred  as a result
   of giving of this Notice of Drawing.

        All  capitalized terms used  in the letter and not defined herein
   shall have the meanings given to them in the Loan Agreement.

                            Very truly yours,

                            READING & BATES OFFSHORE, LIMITED



                            By:  ____________________________
                                 Name:  T. W. Nagle
                                 Title: Vice President and
                                 Treasurer



                                                              EXHIBIT 10.2

                                USD 65,000,000

                             AMENDED AND RESTATED
                           CREDIT FACILITY AGREEMENT


                                  Provided By

                     Internationale Nederlanden Bank N.V.


                                      to


                          Reading & Bates Corporation
                         Reading & Bates Drilling Co.
                        Reading & Bates Exploration Co.
                            Reading and Bates, Inc.
                  Reading and Bates Borneo Drilling Co., Ltd.
                         Reading & Bates (A) Pty. Ltd.


                          Dated as of April 27, 1995
<PAGE>


                               TABLE OF CONTENTS

  Section 1.  Definitions . . . . . . . . . . . . . . . . . . . . . . .    
        1.1   Certain Definitions . . . . . . . . . . . . . . . . . . .    
        1.2   Accounting Terms  . . . . . . . . . . . . . . . . . . . .    

  Section 2.  Facility A  . . . . . . . . . . . . . . . . . . . . . . .    
        2.1   Term Loan . . . . . . . . . . . . . . . . . . . . . . . .    
        2.2   The Facility A Note . . . . . . . . . . . . . . . . . . .    

  Section 3.  Facility B  . . . . . . . . . . . . . . . . . . . . . . .    
        3.1   Prepayment  . . . . . . . . . . . . . . . . . . . . . . .    
        3.2   Charter Payment Guaranty  . . . . . . . . . . . . . . . .    

  Section 4.  Facility C. . . . . . . . . . . . . . . . . . . . . . . .    
        4.1   Overdraft Facility  . . . . . . . . . . . . . . . . . . .    
        4.2   Extension of Maturity Date  . . . . . . . . . . . . . . .    
        4.3   The Facility C Note . . . . . . . . . . . . . . . . . . .   

  Section 5.  Facility D  . . . . . . . . . . . . . . . . . . . . . . .   
        5.1   Letter of Credit  . . . . . . . . . . . . . . . . . . . .   
        5.2   Counter Indemnity . . . . . . . . . . . . . . . . . . . .   
        5.3   Drawings Under Letter of Credit . . . . . . . . . . . . .   
        5.4   Variations  . . . . . . . . . . . . . . . . . . . . . . .   
        5.5   Security  . . . . . . . . . . . . . . . . . . . . . . . .   
        5.6   Certificates  . . . . . . . . . . . . . . . . . . . . . .   
        5.7   The Facility D Note . . . . . . . . . . . . . . . . . . .   

  Section 6.  Facility E  . . . . . . . . . . . . . . . . . . . . . . .   
        6.1   Letters of Credit . . . . . . . . . . . . . . . . . . . .   
        6.2   Counter Indemnity . . . . . . . . . . . . . . . . . . . .   
        6.3   Drawings Under Letters of Credit  . . . . . . . . . . . .   
        6.4   Variations  . . . . . . . . . . . . . . . . . . . . . . .   
        6.5   Security  . . . . . . . . . . . . . . . . . . . . . . . .   
        6.6   Certificates  . . . . . . . . . . . . . . . . . . . . . .   
        6.7   The Facility E Note . . . . . . . . . . . . . . . . . . .   

  Section 7.  Facility F  . . . . . . . . . . . . . . . . . . . . . . .   
        7.1   Letters of Credit . . . . . . . . . . . . . . . . . . . .   
        7.2   Counter Indemnity . . . . . . . . . . . . . . . . . . . .   
        7.3   Drawings Under Letters of Credit  . . . . . . . . . . . .   
        7.4   Variations  . . . . . . . . . . . . . . . . . . . . . . .   
        7.5   Security  . . . . . . . . . . . . . . . . . . . . . . . .   
        7.6   Certificates  . . . . . . . . . . . . . . . . . . . . . .   
        7.7   The Facility F Note . . . . . . . . . . . . . . . . . . .   
        7.8   Insurance . . . . . . . . . . . . . . . . . . . . . . . .   

  Section 8.  Manner of Drawdown and Issuance of Letters of Credit  . .   
        8.1   Manner of Drawdown or Issuance. . . . . . . . . . . . . .   
        8.2   Making Commitment Available . . . . . . . . . . . . . . .   
        8.3   Transfer of Unused Portion of Commitment. . . . . . . . .   
        8.4   Failure to Borrow; Delay. . . . . . . . . . . . . . . . .   

  Section 9.  Interest  . . . . . . . . . . . . . . . . . . . . . . . .   
        9.1   Rate of Interest  . . . . . . . . . . . . . . . . . . . .   
        9.2   Payment of Interest . . . . . . . . . . . . . . . . . . .   
        9.3   Overdue Payment of Principal and Interest . . . . . . . .   
        9.4   Computation of Interest . . . . . . . . . . . . . . . . .   

  Section 10. Payments  . . . . . . . . . . . . . . . . . . . . . . . .   
       10.1   Payments on Non-Business Days . . . . . . . . . . . . . .   
       10.2   Repayment . . . . . . . . . . . . . . . . . . . . . . . .   
       10.3   Voluntary Prepayments . . . . . . . . . . . . . . . . . .   
       10.4   Mandatory Prepayment  . . . . . . . . . . . . . . . . . .   
       10.5   Method and Place of Payment . . . . . . . . . . . . . . .   
       10.6   Net Payments  . . . . . . . . . . . . . . . . . . . . . .   
       10.7   Rights of Set-Off . . . . . . . . . . . . . . . . . . . .   
       10.8   Changes in Circumstances  . . . . . . . . . . . . . . . .   
       10.9   Unavailability of Dollars   . . . . . . . . . . . . . . .   

  Section 11. Security . . . . . . . . . . . . . . . . . . . . . . . .   
       11.1   Mortgages. . . . . . . . . . . . . . . . . . . . . . . .   
       11.2   Assignments. . . . . . . . . . . . . . . . . . . . . . .   
       11.3   Pledges  . . . . . . . . . . . . . . . . . . . . . . . .   
       11.4   Pledge of Earnings Accounts  . . . . . . . . . . . . . .   
       11.5   Pledge of Arcade Drilling Shares . . . . . . . . . . . .   
       11.6   Security Deposits  . . . . . . . . . . . . . . . . . . .   
       11.7   Further Assurances . . . . . . . . . . . . . . . . . . .   

  Section 12. Conditions Precedent  . . . . . . . . . . . . . . . . . .  
       12.1   Documents  Required as  Conditions Precedent  to  the 
              Amendment and Restatement . . . . . . . . . . . . . . . .   
       12.2   Waiver of Conditions Precedent  . . . . . . . . . . . . .   

  Section 13. Fees and Expenses . . . . . . . . . . . . . . . . . . . .   
       13.1   Fees  . . . . . . . . . . . . . . . . . . . . . . . . . .   
       13.2   Expenses  . . . . . . . . . . . . . . . . . . . . . . . .   

  Section 14. Representations and Warranties of Borrowers . . . . . . .   
       14.1   Due Incorporation, Qualification, Etc . . . . . . . . . .   
       14.2   Capacity  . . . . . . . . . . . . . . . . . . . . . . . .   
       14.3   Authority and Enforceability  . . . . . . . . . . . . . .   
       14.4   Governmental Approvals  . . . . . . . . . . . . . . . . .   
       14.5   Compliance with Other Instruments . . . . . . . . . . . .   
       14.6   Financial Statements  . . . . . . . . . . . . . . . . . .   
       14.7   Material Adverse Events . . . . . . . . . . . . . . . . .   
       14.8   Litigation, Etc . . . . . . . . . . . . . . . . . . . . .   
       14.9   Principal Place of Business . . . . . . . . . . . . . . .   
       14.10  Patent and Other Rights . . . . . . . . . . . . . . . . .   
       14.11  Taxes . . . . . . . . . . . . . . . . . . . . . . . . . .   
       14.12  Compliance with Federal Reserve Board
              Regulations . . . . . . . . . . . . . . . . . . . . . . .   
       14.13  Employee Retirement Income Security Act of 1974 . . . . .   
       14.14  Investment Company Act of 1940  . . . . . . . . . . . . .   
       14.15  Subsidiaries  . . . . . . . . . . . . . . . . . . . . . .   
       14.16  Environmental Compliance  . . . . . . . . . . . . . . . .   

  Section 15. Affirmative Covenants of Borrowers  . . . . . . . . . . .   
       15.1   Financial Statements and Reports and Inspection . . . . .   
       15.2   Consolidated Financial Statements . . . . . . . . . . . .   
       15.3   Insurance . . . . . . . . . . . . . . . . . . . . . . . .   
       15.4   Other Debt  . . . . . . . . . . . . . . . . . . . . . . .   
       15.5   Maintenance of Existence; Conduct of Business . . . . . .   
       15.6   Financial Records . . . . . . . . . . . . . . . . . . . .   
       15.7   Maintenance of Rigs . . . . . . . . . . . . . . . . . . .   
       15.8   Environmental Compliance  . . . . . . . . . . . . . . . .    
       15.9   Environmental Notifications . . . . . . . . . . . . . . .   
       15.10  Environmental Indemnification . . . . . . . . . . . . . .   
       15.11  Charter Parties . . . . . . . . . . . . . . . . . . . . .   

  Section 16. Negative Covenants of Borrowers . . . . . . . . . . . . .   
       16.1   Liens . . . . . . . . . . . . . . . . . . . . . . . . . .   
       16.2   Dividends . . . . . . . . . . . . . . . . . . . . . . . .   
       16.3   Consolidation, Merger, Etc  . . . . . . . . . . . . . . .   
       16.4   Modification of Agreements  . . . . . . . . . . . . . . .   
       16.5   Indebtedness  . . . . . . . . . . . . . . . . . . . . . .   
       16.6   Reportable Event  . . . . . . . . . . . . . . . . . . . .   
       16.7   Change of Legal Structure . . . . . . . . . . . . . . . .   
       16.8   Change of Place of Business . . . . . . . . . . . . . . .   
       16.9   Management of Rigs  . . . . . . . . . . . . . . . . . . .   
       16.10  Subsidiaries  . . . . . . . . . . . . . . . . . . . . . .   
       16.11  Prepayment of Debt  . . . . . . . . . . . . . . . . . . .   
       16.12  Sale of Rigs, Etc . . . . . . . . . . . . . . . . . . . .   
       16.13  Consolidated Tangible Net Worth . . . . . . . . . . . . .   
       16.14  Current Ratio . . . . . . . . . . . . . . . . . . . . . .   
       16.15  Fixed Charge Coverage Ratio . . . . . . . . . . . . . . .   
       16.16  Funded Debt . . . . . . . . . . . . . . . . . . . . . . .   
       16.17  Standstill Agreement  . . . . . . . . . . . . . . . . . .   

  Section 17. Events of Default . . . . . . . . . . . . . . . . . . . .   
       17.1   Events of Default . . . . . . . . . . . . . . . . . . . .   

  Section 18. Evaluation and Additional Security  . . . . . . . . . . .   
       18.1   Evaluation  . . . . . . . . . . . . . . . . . . . . . . .   
       18.2   Expenses of Evaluations . . . . . . . . . . . . . . . . .   

  Section 19. Miscellaneous . . . . . . . . . . . . . . . . . . . . . .   
       19.1   Entire Agreement  . . . . . . . . . . . . . . . . . . . .   
       19.2   No Waiver . . . . . . . . . . . . . . . . . . . . . . . .   
       19.3   Survival  . . . . . . . . . . . . . . . . . . . . . . . .   
       19.4   Notices . . . . . . . . . . . . . . . . . . . . . . . . .   
       19.5   Termination . . . . . . . . . . . . . . . . . . . . . . .   
       19.6   Severability of Provisions  . . . . . . . . . . . . . . .   
       19.7   Successors and Assigns  . . . . . . . . . . . . . . . . .   
       19.8   Assignment and Participation  . . . . . . . . . . . . . .   
       19.9   Counterparts  . . . . . . . . . . . . . . . . . . . . . .   
       19.10  Jurisdiction  . . . . . . . . . . . . . . . . . . . . . .   
       19.11  Choice of Law . . . . . . . . . . . . . . . . . . . . . .   
       19.12  Amendment and Waiver  . . . . . . . . . . . . . . . . . .   
       19.13  Agent for Borrowers . . . . . . . . . . . . . . . . . . .   
       19.14  No Oral Agreements  . . . . . . . . . . . . . . . . . . .   
       19.15  Headings, Etc . . . . . . . . . . . . . . . . . . . . . .   

  Schedule 1  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

  Exhibits

  A-1  -  Form of Amended and Restated Facility A Note
  A-2  -  Form of Amended and Restated Facility C Note
  A-3  -  Form of Amended and Restated Facility D Note
  A-4  -  Form of Amended and Restated Facility E Note
  A-5  -  Form of Amended and Restated Facility F Note
  B    -  Form of Notice of Drawdown
  C    -  Form of Request for Letter of Credit
  D    -  Form of Pledge Agreement and Proxy
  E    -  Form  of  Assignment,  Assumption  and Amendment  No.  6  to First
          Preferred Fleet Mortgage
  F    -  Form of Assignment of Insurances
  G    -  Form of Assignment of Drilling Contract Revenues and Earnings
  H-1  -  Form of Facility D Letter of Credit
  H-2 -   Form of Facility E Letter of Credit
  H-3  -  Form of Facility F Letter of Credit
  I    -  Form of Panamanian First Naval Mortgage
  J    -  Form of Australian First Registered Mortgage
  K    -  Form  of  Assignment,  Assumption  and Amendment  No.  2  to Trust
          Indenture
  L    -  Form of Amendment No. 1 to Charter Payment Guaranty
  M    -  Form  of  Assignment, Assumption  and  Amendment of  Assignment of
          Insurances
  N    -  Form  of  Assignment, Assumption  and  Amendment of  Assignment of
          Drilling Contract Revenues and Earnings
<PAGE>

                AMENDED AND RESTATED CREDIT FACILITY AGREEMENT

       THIS  AMENDED AND  RESTATED CREDIT  FACILITY  AGREEMENT, dated  as of
  April  27,  1995,  among  READING  &  BATES  CORPORATION,  a  corporation
  organized and existing  under the laws of the  State of Delaware ("RBC"),
  READING & BATES DRILLING CO., a corporation  organized and existing under
  the  laws of the State  of Oklahoma ("RBD"), READING  & BATES EXPLORATION
  CO., a corporation organized and  existing under the laws of the State of
  Oklahoma ("RBX"),  READING AND BATES,  INC., a corporation  organized and
  existing under  the laws of  the State of  Oklahoma ("RBI"), READING  AND
  BATES  BORNEO  DRILLING CO.,  LTD. a  corporation organized  and existing
  under the laws of the State of Oklahoma ("RBB"), Reading & Bates (A) Pty.
  Ltd.,  a company  incorporated under  the laws  of the  State of  Western
  Australia, Commonwealth of Australia ("RBA") (RBC, RBD, RBX, RBI, RBB and
  RBA being referred to collectively as the "Borrowers" and individually as
  a  "Borrower") and  INTERNATIONALE  NEDERLANDEN  BANK,  N.V.,  a  company
  incorporated under  the laws of  the Netherlands, formerly  known as  NMB
  POSTBANK GROEP N.V. (the "Lender").

                             W I T N E S S E T H:

      WHEREAS, pursuant to the  Credit Facility Agreement dated as of March
  27, 1991, as amended May  24, 1991, June 28, 1991, August  30, 1991, June
  30,  1992 and  February 23,  1993 (as  so amended,  the "Original  Credit
  Agreement"),  the  Lender agreed  to  provide funding  to certain  of the
  Borrowers in the aggregate principal amount of up to USD 112,000,000; and

      WHEREAS, the  Borrowers and the Lender  wish to  restate the Original
  Credit Agreement in  order to add RBB and RBA  as Borrowers, increase the
  amount  of Facility  E, add  a new  letter of  credit facility  and amend
  certain terms and covenants.

      NOW, THEREFORE,  in consideration  of the  above recitals, and  other
  good  and valuable consideration, the receipt and sufficiency of which is
  hereby  acknowledged, the parties agree to amend and restate the Original
  Credit Agreement as follows:

  Section 1.  Definitions.

      1.1  Certain Definitions.  As used herein, the following terms  shall
  have the following respective meanings:

      "Advance" means  a loan by the Lender to  any Borrower under Facility
  A or Facility C.

      "Agreement"  means   this  Amended  and   Restated  Credit   Facility
  Agreement and all future amendments and supplements, if any, hereto.

      "Arcade Drilling" means Arcade  Drilling AS, a  corporation organized
  and existing under the laws of the Kingdom of Norway.

      "Arcade Shipping" means Arcade  Shipping AS, a  corporation organized
  and existing under the laws of the Kingdom of Norway.

      "Assignment  Amendments"  means the  Assignments  of  Insurances  and
  Drilling Contract Revenues  and Earnings by RBB and RBA  substantially in
  the forms of Exhibits F and G, respectively attached hereto. 

      "Assignments"  means the  Assignment Amendments  and the  Assignment,
  Assumption and Amendment of the Assignment of Insurances on  the Rigs and
  the Assignment, Assumption  and Amendment of the  Assignment  of Drilling
  Contract Revenues and Earnings of the Rigs both dated  March 27, 1991, as
  amended, substantially  in the forms  of Exhibits M  and N,  respectively
  attached hereto.

      "Business Day" means any  day on which commercial banks  are open for
  business in  Amsterdam, The  Netherlands, Houston,  Texas, New  York, New
  York and, in respect of Facility A only, London, England.

      "Charter  Notes" means  the 13-5/8% Secured  Notes due  June 21, 2000
  (Reading  & Bates  "George  H. Galloway"  Equipment  Trust) and  the  15%
  Secured  Notes  due December  7,  1999 (Reading  & Bates  "C.E. Thornton"
  Equipment Trust) of the Charter Trustee.

      "Charter Payment  Guaranty" means the Guaranty  dated as  of June 28,
  1991, as amended by Amendment No. 1 to Charter Payment Guaranty dated the
  date hereof, substantially  in the form of  Exhibit L attached hereto  of
  the Borrowers' obligations  of the Charter Trustee to pay  those portions
  of  the  Charter Notes  which  are equivalent  to  the future  payment of
  Alternative Basic Hire or Regular Basic Hire, as defined in the Charters.

      "Charter  Trustee"  means  The  Connecticut  National  Bank,  in  its
  capacity as owner trustee under the Trust Agreements dated as of November
  30, 1984, as amended, and as of June 19, 1985, as amended.

      "Charters" means the Bareboat  Charter Party dated December 7,  1984,
  as amended and restated as of March 27, 1991, between RBX and the Charter
  Trustee concerning the U.S. flag drilling rig C.E. THORNTON, Official No.
  673210 and the Bareboat Charter Party dated June 21, 1985, as amended and
  restated  as  of  March 27,  1991  between  RBD and  the  Charter Trustee
  concerning  the U.S. flag  drilling rig GEORGE H.  GALLOWAY, Official No.
  651646.

      "Commitment" means a maximum of USD 65,000,000.

      "Controlled  Group"  means a  "controlled  group of  corporations" as
  defined in  Section 1563(a)  of the  Internal Revenue  Code  of 1986,  as
  amended, determined without regard to Section 1563(a)(4) and (e)(3)(C) of
  such Code, of which the Borrowers are a part.

      "Consolidated   Tangible   Net    Worth"   means   the   consolidated
  stockholders equity  of RBC less  intangible assets and  unamortized debt
  discount expenses.

      "Credit Facility" means  the aggregate  amount of Advances  made, and
  Letters  of  Credit issued,  hereunder  and the  aggregate amount  of the
  unused but  still available  portion of the  Commitment under all  of the
  Facilities and the obligations of the Borrowers under the Charter Payment
  Guaranty.

      "Current  Assets" means  those assets  of  RBC  and its  consolidated
  subsidiaries which would in accordance with generally accepted accounting
  principles in  the United  States be  classified as  current assets  of a
  corporation  conducting  a  business  the  same  as  or  similar  to  the
  businesses of such Borrower. 

      "Current Liabilities"  means Indebtedness of RBC and its consolidated
  subsidiaries which would in accordance with generally accepted accounting
  principles in the United States be classified as current liabilities of a
  corporation conducting  a business the same as or similar to the business
  of  RBC and  its consolidated  subsidiaries; provided,  however,  that in
  determining  current   liabilities,  current  maturities   of  long  term
  indebtedness (including  principal and interest) shall not  be taken into
  account.

      "Dollars" and  the sign "USD" mean lawful money  of the United States
  of America.

      "Drawdown  Date" means the  date upon  which an Advance  is made or a
  Letter of Credit is issued.

      "ERISA" means the Employee  Retirement Income  Security Act of  1974,
  as amended.

      "Event of Default" means  each of the Events of  Default described in
  Section 17.

      "Facility" means any  facility described in Section 2,  3, 4, 5, 6 or
  7 of this Agreement.

      "Facility A" means the term  loan facility described in Section  2 of
  this Agreement.

      "Facility  B"  means the  guarantee  obligations  of certain  of  the
  Borrowers described in Section 3 of this Agreement.

      "Facility C" means the overdraft  facility described in Section  4 of
  this Agreement.

      "Facility D"  means the long term  standby letter  of credit facility
  described in Section 5 of this Agreement.

      "Facility E" means the short  term standby letter of  credit facility
  described in Section 6 of this Agreement.

      "Facility F" means  the standby letter of  credit facility  described
  in Section 7 of this Agreement.

      "Facility A Maturity Date" means December 31, 1996.

      "Facility C  Maturity Date" means  August 1, 1995, or  as extended by
  the Lender pursuant to Section 4.2.

      "Fixed Charge Coverage  Ratio" means the consolidated earnings of RBC
  before depreciation,  amortization, interest expense,  lease rentals  and
  taxes, divided by interest expense and lease rentals.

      "Funded Debt"  means consolidated  indebtedness of  RBC for  borrowed
  money.

      "Governmental Agency" means any  government or any  state, department
  or other  political  subdivision thereof  or governmental  body,  agency,
  authority,  department or  commission (including  without  limitation any
  court   or   tribunal)   exercising  executive,   legislative,  judicial, 
  regulatory or administrative functions of or pertaining to government and
  any corporation, partnership or other entity directly or indirectly owned
  by or subject to the control of the foregoing.

      "Guarantee Payments" means  the joint and several obligations  of the
  Borrowers to  reimburse the Lender sums  equal to any amount  paid out by
  the Lender as  a result of any drawing under  any Letter of Credit issued
  pursuant to this Agreement.

      "Hazardous  Substances"  means  flammables,  explosives,  radioactive
  materials, asbestos or any materials containing asbestos, polychlorinated
  biphenyls,  toxic  substances  or   related  materials,  oil,   including
  petroleum  and used oil,  production and development wastes  or any other
  hazardous,  dangerous or toxic waste, substance or material as defined in
  the Comprehensive Environmental  Response, Compensation and Liability Act
  of 1980,  as amended,  42 U.S.C. Sec.  9601, et seq.  (hereinafter called
  "CERCLA");  the Resource  Conservation and  Recovery Act, as  amended, 42
  U.S.C.  Sec.  6901,  et  seq.  (hereinafter  called  "RCRA");  the  Toxic
  Substances  Control  Act, as  amended,  15  U.S.C.  Sec.  2601,  et  seq.
  (hereinafter called "TSCA");  the Hazardous Materials Transportation Act,
  as amended, 49 U.S.C. Sec. 1801, et seq. (hereinafter called "HMTA"); the
  Oil  Pollution Act  of 1990,  Pub.L. No.  101-380,  104 Stat.  484 (1990)
  (hereinafter called "OPA"); or any other statute, law, ordinance, code or
  regulation of any Governmental Agency  relating to or imposing  liability
  or  standards  of conduct  concerning  the  use, production,  generation,
  treatment,  storage,   recycling,  handling,   transportation,   release,
  threatened  release or  disposal  of any  waste,  substance  or material,
  currently in effect or at any time hereafter adopted.

      "Indebtedness"  of  any  Borrower  means  all  items  of indebtedness
  which, in accordance with generally accepted accounting principles in the
  United States, would  be included in determining liabilities as  shown on
  the  liability side  of  a balance  sheet, as  of  the date  as  of which
  indebtedness  is to be determined and shall also include all indebtedness
  and liabilities of  others assumed or  guaranteed by  any Borrower or  in
  respect  of which  any  Borrower is  secondarily  or  contingently liable
  (other than by endorsement of instruments in the course of collection and
  performance  guarantees  and similar  transactions  entered  into in  the
  ordinary  course of  business)  whether by  reason  of any  agreement  to
  acquire such indebtedness or to supply or advance sums or otherwise.

      "Installment Payment Dates"  means the five  semi-annual installments
  of  principal outstanding under Facility A referred to in Section 10.2(a)
  hereof.

      "Interest  Payment Date"  means as to  Facility A,  the last Business
  Day  of each Interest  Period and as  to Facility  C, it means  the first
  Business Day in the last  month of each calendar quarter commencing  June
  1,  1995, unless  the  Lender notifies  the  Borrower that  the  Interest
  Payment Date as to Facility C shall be changed to the first Business  Day
  of the  first month in each  calendar quarter, in which  case payments of
  Interest shall  be made by the  Borrowers in arrears, on  each January 1,
  April 1, July 1 and October 1.

      "Interest  Period" means  each period  selected by RBC  in connection
  with Facility A, the most  recent of which commenced on December 31, 1994
  and  shall end on June  30, 1995 and  the remaining being  the periods of
  time  which begin  on the  date immediately after  the expiration  of the
  preceding Interest  Period and end on  the day selected  by RBC which  is
  either three or six months after such date.

      "Letters of  Credit" means the stand-by  letters of  credit issued by
  the Lender  pursuant to Sections  5.1, 6.1 and  7.1 below,  respectively,
  under Facility D,  Facility E or Facility  F, substantially in  the forms
  attached  hereto as  Exhibit H-1,  H-2 and  H-3 or  as  agreed to  by the
  Lender.

      "LIBOR"  means  the  rate  (rounded upwards,  if  necessary,  to  the
  nearest one sixteenth  of one per cent) for deposits  in Dollars equal to
  the  outstanding amount of  Facility A  for the duration  of the relevant
  Interest Period which is fixed in the London Interbank  Market and quoted
  on  the Reuters Screen  LIBO Page as  of 11:00 a.m. London  time two days
  prior  to the commencement of the relevant Interest Period.  If more than
  one  rate appears  on the  Reuters Screen  LIBO Page,  LIBOR will  be the
  arithmetic mean of such rates. If fewer than two rates appear, LIBOR will
  be determined  by the Lender by  reference to the arithmetic  mean of the
  rates offered  by Barclays  Bank, Bank of  Tokyo, Bankers  Trust and  the
  Lender in the London Interbank Market.

      "Loan  Documents" means this  Agreement, the  Mortgages, the Mortgage
  Amendments, the  Assignments, the Assignment Amendments,  the Pledge, the
  Pledge  of Earnings  Account,  the Pledge  of  Arcade Shares,  the  Trust
  Indenture, the Letters of Credit and the Notes.

      "Mortgage   Amendments"   means   the   Assignment,  Assumption   and
  Amendments  No.  6  to  the U.S.  Preferred  Fleet  and Preferred  Vessel
  Mortgages, substantially in the form of Exhibit E attached hereto.

      "Mortgages"  means the  U.S.  Preferred  Fleet and  Preferred  Vessel
  Mortgages on  the U.S. flag  Rigs dated March  27, 1991,  as amended, the
  Panamanian First Naval  Mortgage on the CHARLEY GRAVES  dated as of April
  27, 1995, substantially in the form of Exhibit I attached hereto, and the
  Australian First Registered  Ship Mortgage on the RON TAPPMEYER  dated as
  of  April  27, 1995,  substantially  in the  form of  Exhibit  J attached
  hereto.

      "Notes"  means the  amended  and  restated  promissory notes  of  the
  Borrowers substantially in the form of Exhibit A-1, A-2, A-3, A-4 and A-5
  attached hereto.

      "Notice of  Drawdown" means the notice  of drawdown  under Facility C
  given by one or more  of the Borrowers pursuant to Section 4.1(c) hereof,
  substantially in the form attached hereto as Exhibit B.

      "Overdraft Account" means  any account in the  name of all or any  of
  the  Borrowers established  at  the Lender's  Amsterdam Branch  Office in
  Amsterdam  South East from which drawings and into which repayments under
  Facility C are to be made.

      "Person"  means any  natural person,  corporation, firm, association,
  government,  Governmental  Agency  or  any other  entity  other  than the
  Borrowers  and  whether  acting  in  an individual,  fiduciary  or  other
  capacity.

      "Plan" means  any employee pension benefit  plan subject  to Title IV
  of ERISA  and maintained by the  Borrowers or any member  of a Controlled 
  Group,  or any  such plan,  to  which the  Borrowers or  any member  of a
  Controlled Group  is  required to  contribute on  behalf  of any  of  its
  employees.

      "Pledges"  means the  pledge  of all  of  the issued  and outstanding
  shares of RBD  by RBC, the  pledge of all of  the issued and  outstanding
  shares of RBI, RBX  and RBB by RBD, and  the pledge of all  of the issued
  and outstanding shares  of RBA by RBX, all  in favor of the  Trustee, and
  all substantially in the form of Exhibit D attached hereto.

      "Pledge  of Earnings  Accounts"  means the  pledge of  the Borrowers'
  accounts with the Lender pursuant to Section 11.4 hereof.

      "Pledge of Arcade  Shares" means the  pledge of  all shares owned  or
  hereafter acquired by any of the Borrowers of Arcade Drilling referred to
  in Section 11.5 hereof.

      "Prime  Rate" means  the  rate announced  by the  New York  office of
  Citibank, N.A. from time to time as its prime or base rate.

      "Reportable Event"  means a reportable event  as defined  in Title IV
  of ERISA,  except actions of  general applicability by  the Secretary  of
  Labor under Section 110 of ERISA.

      "Request for  Letter  of Credit"  means  the  Request for  Letter  of
  Credit  given  by one  or  more Borrowers  pursuant to  Section 8.1(c)(i)
  hereof, substantially in the form attached hereto as Exhibit C.

      "Restructure  Date"  means  the  date  on  which  the  amendment  and
  restatement of the Facilities is completed pursuant to this Agreement.

      "Rigs"  means the  nine  (9) U.S.  flag drilling  rigs,  the  one (1)
  Panamanian flag drilling rig and the one (1) Australian flag drilling rig
  listed on Schedule 1 attached hereto.

      "Security  Deposits" means  the deposits required  to be  made by the
  Borrowers   with  the   Lender  pursuant   to  Sections   10.4,  10.8(a),
  10.8(b)(iii)(C), 10.9(b) and 17.1 hereof.

      "Trust Indenture"  means the  Trust Indenture  between the  Borrowers
  and the Trustee dated March 27, 1991, as amended by Amendment No. 1 dated
  February  25,  1993  and  as  further  amended  on  the  date  hereof  by
  Assignment,  Assumption  and   Amendment  No.  2   to  Trust   Indenture,
  substantially in the form of Exhibit K attached hereto.

      "Trustee"  means  Bank  One,  Texas,  National  Association,  in  its
  capacity as trustee for the Lender pursuant to the Trust Indenture.

      1.2   Accounting  Terms.   Except  as  expressly stated  herein,  all
  accounting terms  not specifically defined  herein shall be  construed in
  accordance with generally  accepted accounting principles  in the  United
  States consistent  with those applied in preparation  of the consolidated
  financial statements of RBC referred to in Section 14.6 hereof (with such
  adjustments  as shall  be  necessary, and  with  which  RBC's independent
  auditors  concur,  to   reflect  any  differences   between  the   stated
  assumptions  made in  preparing  such  financial  statements  and  actual
  events). 

  Section 2.  Facility A.

      2.1  Term  Loan.  Upon the terms and subject to the conditions herein
  set forth, the Lender has made a term  loan in the form of one Advance in
  the amount of USD 31,300,000.00  to certain of the Borrowers, jointly and
  severally, under Facility  A of the Original Credit Agreement,  which was
  paid to such Borrowers' senior creditors to refinance their existing long
  term  indebtedness.    The  Borrowers hereby  acknowledge  that  they are
  jointly  and  severally  liable  to  the Lender  for  the  amount  of USD
  15,000,000, representing the principal  amount outstanding under Facility
  A.  The Borrowers may not reborrow any portion of such term loan that has
  already been borrowed and repaid or prepaid.

      2.2  The Facility  A Note.  The joint  and several obligation  of the
  Borrowers to pay the principal  of, and interest on, the term  loan shall
  be evidenced by  the Amended and Restated Facility A  Note, substantially
  in the form of Exhibit A-1 attached hereto.

  Section 3.     Facility B.

      3.1   Prepayment.   (a)   On June  28, 1991,  RBC, RBD,  RBX and  RBI
  caused to  be prepaid to the  Lender the amount  of USD 45,000,000  which
  represented the outstanding amount of the Facility  B term loan under the
  Original Credit Agreement.

         (b)   The  Lender agreed  at that  time,  as  an accommodation  to
  certain  of the  Borrowers,  to  use the  amount  of  such prepayment  to
  purchase interests in the Charter Notes equivalent to the future payments
  by  RBD and  RBX of  Alternative  Basic Hire  or Regular  Basic  Hire, as
  defined  in the Charters, up to the amount of USD 45,000,000, pursuant to
  the  Assignment Agreements  dated as  of June  28, 1991  (the "Assignment
  Agreements").

      3.2   Charter Payment  Guaranty.   (a) The  Borrowers have agreed  to
  jointly and severally guarantee the obligations of the Charter Trustee to
  pay the interests  in the Charter Notes purchased by  the Lender pursuant
  to  the terms of the Charter Payment  Guaranty.  The parties hereto agree
  that  the obligations of the Borrowers under the Charter Payment Guaranty
  shall  be  considered as  amounts  due  to the  Lender  under  the Credit
  Agreement  and will therefore be secured by the Assignments, the Pledges,
  the Pledge  of Earnings  Accounts, the Pledge  of Arcade  shares and  the
  Security Deposits.

         (b)  RBD, RBX, RBI, RBB and RBA have agreed to secure the  payment
  and  other obligations under the Charter Payment Guaranty by, among other
  things, the Mortgages on the Rigs owned by them.

  Section 4.     Facility C.

      4.1   Overdraft Facility.   (a)   Upon the  terms and subject  to the
  conditions  herein  set forth,  the  Lender agrees  to make  an overdraft
  facility available to the Borrowers by allowing any of  them from time to
  time  prior to  the Facility  C Maturity  Date to  draw on  the Overdraft
  Account  in  amounts   in  the  aggregate  not  to  exceed  at  any  time
  USD 15,000,000.

         (b)  Any drawing under Facility C  shall be an Advance under  this
  Agreement.  Within the USD 15,000,000 limit referred to above, any of the
  Borrowers  may borrow and prepay such Advances pursuant to Section 4.1(d)
  below and reborrow under Section 4.1(c).

         (c)   Drawings under  Facility C  may be  made  by tested  telefax
  Notice  of a Drawdown sent  by any Borrower  to the Lender  signed by any
  officer  or representative of  the Borrowers  previously designated  in a
  written notice to the Lender.

         (d)  Amounts outstanding under  Facility C may be  prepaid without
  penalty by  the Borrowers  transferring  any amount  into  the  Overdraft
  Account without any prior notice to the Lender.

      4.2  Extension of  Maturity Date.   Following a written request  from
  the Borrowers, the Facility C Maturity Date may be extended by the Lender
  in  its sole  discretion by  written notice  to the  Borrowers; provided,
  however, that such extensions shall in no event extend the final maturity
  of Facility C beyond the Facility A Maturity Date.

      4.3    The  Facility  C  Note.    The  Borrowers'  joint and  several
  obligations to  pay the  principal of  and the interest  on, all  amounts
  outstanding  under Facility  C  shall be  evidenced  by the  Amended  and
  Restated  Facility  C  Note  substantially in  the  form  of Exhibit  A-2
  attached hereto.

  Section 5.     Facility D.

      5.1  Letter of  Credit.  On the terms  and subject to  the conditions
  hereof, the Lender has issued a standby letter of credit in the amount of
  USD 5,000,000 for the account of  RBC in substantially the form  attached
  as  Exhibit H-1 hereto for a term  of which shall not extend beyond April
  30, 1996.

       5.2  Counter Indemnity.  The Borrowers jointly and severally agree to
  reimburse the Lender a sum equal to any amount paid out by  the Lender as
  a  result  of any  drawing  under  the Facility  D  Letter  of Credit  (a
  "Facility D Guarantee Payment") within thirty (30) days of any Facility D
  Guarantee Payment.

      5.3  Drawings Under Letter of Credit.   The Lender shall not  concern
  itself with  the regularity or  propriety of  any demand  made under  the
  Facility D  Letter of Credit beyond the face  thereof, provided that such
  demand strictly  complies with  the terms  of such Letter  of Credit  and
  (subject to  such proviso) it  shall not be a  defense to a  claim of the
  Lender under this section that the Lender could have resisted the payment
  in respect of which such claim is made.

      5.4    Variations.   The  obligations  of  the  Borrowers under  this
  Section 5 shall not be in any way discharged or impaired by any variation
  of the  terms of the Facility D Letter of Credit or this Agreement or any
  document executed pursuant hereto.

      5.5   Security.  The  obligations of the  Borrowers under Section 5.2
  above shall  be in addition to  and not in substitution  for any security
  now  or  hereafter  held by  the  Lender  in respect  of  such Borrowers'
  obligations under this Agreement.

      5.6  Certificates.  A  certificate together with evidence  of payment
  submitted by the Lender to the Borrowers as to the amount of any Facility 
  D Guarantee Payment made by the Lender shall (save for manifest error) be
  conclusive and binding on the Borrowers for all purposes.

      5.7    The Facility  D  Note.   The obligations  of the  Borrowers to
  reimburse  the Lender for  any Facility D Guarantee  Payment and interest
  thereon and to make any required  Security Deposits shall be evidenced by
  the  Amended and Restated Facility  D Note, substantially in  the form of
  Exhibit A-3 attached hereto.

  Section 6.     Facility E.

      6.1  Letters of  Credit.  On the terms and subject to  the conditions
  hereof, the  Lender hereby agrees that  it will issue standby  letters of
  credit in a total amount not to exceed at any time USD 15,000,000 for the
  account of any Borrower in substantially the form attached as Exhibit H-2
  hereto or in such  other form as shall be  acceptable to the Lender  with
  expiration dates on or before June  30, 1997.  Within such USD 15,000,000
  limit the  Borrowers may request  new Facility  E Letters of  Credit with
  expiration dates on or before June 30, 1997 to be issued by the Lender as
  old Facility E Letters of Credit terminate or expire.

      6.2  Counter Indemnity.  The Borrowers jointly and severally agree to
  reimburse the Lender a sum equal to any amount paid  out by the Lender as
  a  result  of any  drawing  under  any Facility  E  Letter  of Credit  (a
  "Facility E Guarantee Payment") within thirty (30) days of any Facility E
  Guarantee Payment.

      6.3   Drawings Under Letters of Credit.  The Lender shall not concern
  itself with  the regularity or  propriety of  any demand  made under  any
  Facility E  Letter of Credit beyond the face  thereof, provided that such
  demand strictly  complies with  the terms  of such Letter  of Credit  and
  (subject to such  proviso) it shall not  be a defense  to a claim of  the
  Lender under this section that the Lender could have resisted the payment
  in respect of which such claim is made.

      6.4   Variations.   The Borrowers'  obligations under  this Section 6
  shall  not be in any  way discharged or impaired by  any variation of the
  terms  of any  Facility  E Letter  of  Credit or  this  Agreement  or any
  document executed pursuant hereto.

      6.5   Security.  The Borrowers'  obligations under  Section 6.2 above
  shall be  in addition to and not in substitution  for any security now or
  hereafter  held by the Lender in  respect of their obligations under this
  Agreement.

      6.6  Certificates.  A  certificate together with evidence  of payment
  submitted by the Lender to the Borrowers as to the amount of any Facility
  E Guarantee Payment made by the Lender shall (save for manifest error) be
  conclusive and binding on the Borrowers for all purposes.

      6.7  The  Facility E  Note.  The  Borrowers' obligation to  reimburse
  the Lender for any Facility E Guarantee Payment and interest  thereon and
  to  make any required Security Deposits shall be evidenced by the Amended
  and Restated Facility E  Note, substantially in  the form of Exhibit  A-4
  attached hereto. 

  Section 7.     Facility F.

      7.1   Letters of Credit.  On the terms and  subject to the conditions
  hereof,  the Lender  has  issued and  hereby  agrees that  it  will issue
  standby  letters of  credit to  obtain  customs bonds  respecting  duties
  assessed on the Borrowers' drilling equipment  or rigs in Indonesia in  a
  total  amount  not  to exceed  USD  15,000,000 or  its  counter  value in
  Indonesian  Rhupias, for the account of any Borrower in substantially the
  form attached as Exhibit  H-3 hereto or  in such other  form as shall  be
  acceptable to the Lender for a term of which shall not extend beyond June
  30, 1997.

      7.2   Counter Indemnity.  The  Borrowers jointly  and severally agree
  to reimburse the Lender a sum  equal to any amount paid out by the Lender
  as a result of  any drawing under either Facility  F Letter of Credit  (a
  "Facility F Guarantee Payment") within thirty (30) days of any Facility F
  Guarantee Payment.

      7.3  Drawings Under Letters of Credit.  The  Lender shall not concern
  itself with  the regularity  or propriety  of any  demand made under  any
  Facility F Letter  of Credit beyond the face  thereof, provided that such
  demand  strictly complies with  the terms  of such  Letter of  Credit and
  (subject to such  proviso) it shall  not be a defense  to a claim  of the
  Lender under this section that the Lender could have resisted the payment
  in respect of which such claim is made.

      7.4    Variations.   The  obligations  of  the  Borrowers under  this
  Section 7 shall not be in any way discharged or impaired by any variation
  of  the terms of either Facility F  Letter of Credit or this Agreement or
  any document executed pursuant hereto.

      7.5  Security.   The obligations of  the Borrowers under Section  7.2
  above shall  be in addition to  and not in substitution  for any security
  now  or  hereafter held  by  the Lender  in  respect  of such  Borrowers'
  obligations under this Agreement.

      7.6  Certificates.  A  certificate together with evidence  of payment
  submitted by the Lender to the Borrowers as to the amount of any Facility
  F Guarantee Payment made by the Lender shall (save for manifest error) be
  conclusive and binding on the Borrowers for all purposes.

      7.7    The Facility  F  Note.   The obligations  of the  Borrowers to
  reimburse  the Lender for  any Facility F Guarantee  Payment and interest
  thereon and to make any required Security  Deposits shall be evidenced by
  the Amended  and Restated Facility F  Note, substantially in the  form of
  Exhibit A-5 attached hereto.

      7.8  Insurance.   The Borrowers may, at  their own expense, insure or
  cause to  be insured the  risk of  a claim or  claims under a  Facility F
  Letter  of Credit in case drilling equipment or rigs for which a Facility
  F Letter of Credit  has been issued become a total loss.   If obtained by
  the  Borrowers, such insurance shall (i) name the Lender as an additional
  assured  and loss payee and (ii) have its proceeds assigned to the Lender
  for so long as a Facility F Letter of Credit is outstanding.

  Section 8.  Manner of Drawdown and Issuance of Letters of Credit. 

      8.1   Manner of  Drawdown or  Issuance.   The Borrowers  may draw  an
  Advance or have a Letter of Credit issued upon:

         (a)  The Lender's prior  satisfaction that the relevant conditions
  set out in Section 12 herein have been complied with, 

         (b)   No  event  having occurred  to the  actual knowledge  of the
  Borrowers  which,  with  or  without  notice  or  lapse  of  time,  would
  constitute an Event of Default; and 

         (c)  The Lender having received from the relevant Borrowers:

             (i)   for the issuance of a Letter of Credit under Facility D,
  Facility E, and  Facility F, an irrevocable Request for  Letter of Credit
  at least five (5)  Business Days prior to the Drawdown  Date on which the
  Letter of Credit is to be issued;

              (ii)  for an Advance under Facility C, a Notice of Drawdown.

         (d)   Each Request for  Letter of  Credit and  Notice of  Drawdown
  shall  constitute a certification by the Borrowers giving such Request or
  Notice that:

             (i)  the representations  and warranties  contained in Section
  14 hereof applicable to such Borrowers at such time are correct on and as
  of the date of such Request for Letter of Credit or Notice of Drawdown as
  though made on and as of such date; and

              (ii)   no  event has  occurred  and  is continuing,  or would
  result  from the Advance  or the  issuance of the Letter  of Credit which
  constitutes an Event of Default or with the passing of time or the giving
  of notice would constitute an Event of Default.

      8.2   Making Commitment Available.   The Lender shall,  on a Drawdown
  Date, make the Commitment available to the relevant Borrowers by:

         (a)  in the  case of  Facility A,  the Advance  has  been made  by
  crediting  RBC's  account maintained  at  the  Lender's Amsterdam  Branch
  Office in Amsterdam South East; or 

         (b)  in the case of Facility  C, by any Borrower  making a drawing
  pursuant to Section 4 hereof.

         (c)  in  the case  of Facility  D, Facility  E, or  Facility F  by
  issuing a Letter of Credit  pursuant to the instructions of  the relevant
  Borrowers contained in the Request for Letter of Credit.

      8.3  Transfer of Unused Portion of Commitment

         (a)  The  Borrowers may request the  Lender to transfer all, or  a
  portion no  less than  USD 500,000, of  the Commitment  not used  by  the
  Borrowers under Facility  C to Facility  E or  F or under  Facility E  to
  Facility C or F.

         (b)   If,  in  its  sole discretion,  the  Lender agrees  to  such
  transfer, the Facility  from which the amount is being  transferred shall
  be  reduced by the amount being transferred and the Facility to which the
  amount  is being  transferred  shall be  increased  by the  amount  being 
  transferred without  the requirement of amending  this Agreement, however
  endorsements to the Facility C,  Facility E and Facility F Notes shall be
  made evidencing such transfers.

         (c)   The  Borrowers may request  a transfer  of unused Commitment
  under this Section as many times as they wish.

      8.4   Failure to Borrow;  Delay.   If the borrowing or  issuance of a
  Letter  of Credit described in any Request for Letter of Credit or Notice
  of  Drawdown, as  the case  may be,  fails to  take place  or  is delayed
  because any of the conditions  specified in Section 12 are not satisfied,
  the Borrowers shall indemnify the  Lender against any loss incurred  as a
  result of  the giving of such Request  for Letter of Credit  or Notice of
  Drawdown, including without  limitation any loss  resulting from  actions
  taken by the Lender to fund the Commitment; provided, however, the Lender
  will attempt to mitigate its losses in such situation.   A certificate of
  the Lender stating in reasonable detail the amount of, and basis for, any
  such loss incurred by it shall be conclusive absent manifest error.

  Section 9.  Interest.

      9.1  Rate of Interest.  (a)  Subject to Section 9.4 below:

              (i)     The  Borrowers  jointly and  severally  agree  to pay
  interest in respect of all amounts outstanding under Facility A at a rate
  per annum of LIBOR plus 1-1/2%;

              (ii)    The  Borrowers jointly  and  severally agree  to  pay
  interest in respect of all amounts outstanding under Facility C at a rate
  per annum of the Prime Rate plus 1-1/4%;

              (iii)   The  Borrowers  jointly  and severally  agree  to pay
  interest in  respect of any  Facility D  Guaranty Payment at  a rate  per
  annum of the Prime Rate plus 1-1/4%;

              (iv)    The  Borrowers jointly  and  severally  agree to  pay
  interest  in respect  of any Facility  E Guaranty  Payment at  a rate per
  annum of the Prime Rate plus 1-1/4%.

              (v)     The Borrowers  jointly  and severally  agree  to  pay
  interest in  respect of  any Facility  F Guaranty Payment  at a  rate per
  annum of the Prime Rate plus 1-1/4%;

         (b)  Interest on unpaid principal  amounts outstanding under  this
  Agreement  shall be computed on  the basis of a year of  360 days and the
  actual number of days  elapsed in the case of Facility A and 365 days and
  the actual number of days elapsed in the case of the other Facilities.

         (c)   For  Facility  A,  RBC shall  elect  an Interest  Period  by
  delivering written notice to the Lender  not less than three (3) Business
  Days  prior to the  beginning of any Interest  Period, provided, however,
  that  if no  such notice shall  be given,  such Interest  Period shall be
  three months.

         (d)    All  Interest  Periods  shall  end  on  March  31, June 30,
  September 30, or December 31; provided, however, that: 

           (i)   if during the term of  this Agreement RBC wishes to choose
  an Interest Period which would extend beyond the next Installment Payment
  Date, RBC shall in the written notice electing an Interest Period  divide
  amounts then outstanding under Facility A into two tranches, the first of
  which shall consist of the amount of the Facility  A Advance to be repaid
  on the  next Installment  Payment  Date and  the  second of  which  shall
  consist of the remaining outstanding amount of the Facility A Advance;

          (ii)   if the written notice of RBC referred to  above designates
  different  Interest Periods for  the two tranches no  Interest Period for
  any first tranche may extend beyond the next Installment Payment Date.

      9.2   Payment of  Interest.   Interest shall be  paid by the relevant
  Borrowers as follows:

         (a)  In respect of the  unpaid principal amount  outstanding under
  Facility A, in arrears, on the last day of each Interest Period.

         (b)  In respect of  the unpaid principal amounts outstanding under
  Facility  C,  in arrears,  on  each  March 1,  June  1,  September 1  and
  December 1, unless  the Lender  notifies the Borrower  that the  Interest
  Payment Date as  to Facility C shall be changed to the first Business Day
  of the first month in  each calendar quarter, in which case such payments
  of Interest shall be made  by the Borrowers, in arrears, on  each January
  1, April 1, July 1 and October 1.

         (c)  In  respect  of  any  Guarantee  Payment  under  Facility  D,
  Facility E or Facility F interest from the date of such Guarantee Payment
  up to the date such amount  is paid by the relevant Borrowers on the date
  such payment is made.

      9.3   Overdue Payment of Principal  and Interest.   Overdue principal
  of,  and (to the extent permitted by law) overdue interest in respect of,
  amounts due under any Facility shall bear interest, payable on demand, at
  a  rate per  annum which  shall  be 2%  in  excess of  the interest  rate
  otherwise applicable from time to time to such Facility.

      9.4  Computation of  Interest.  Notwithstanding any provision of this
  Agreement, the Notes, the  other Loan Documents or any  other document or
  instrument executed  in connection therewith  to the contrary  it is  the
  intent of the parties hereto that, in no event shall the aggregate amount
  of consideration  which  constitutes interest  under any  applicable  law
  which  is  contracted for,  charged  or received  hereunder or  under the
  Notes, the  other Loan  Documents  or otherwise  ("Interest") exceed  the
  maximum amount  of nonusurious interest  allowed by law,  and any  excess
  shall  be  credited on  this  Agreement,  the  Notes or  the  other  Loan
  Documents (or  if  all such  obligations shall  have been  paid in  full,
  refunded to the Borrowers).   For purposes of the foregoing, the  maximum
  amount of interest allowed by  law shall be calculated by determining the
  amount  of interest  that could  be contracted  for, charged  or received
  during  the term  hereof  at the  maximum  rate of  nonusurious  interest
  allowed from time to  time by applicable law as is now or,  to the extent
  allowed by law, as  may hereafter be in effect (the  "maximum nonusurious
  interest rate") and, if at any time  the rate of Interest to accrue would
  exceed the  maximum nonusurious interest  rate, the rate  of Interest  to
  accrue under this Agreement, the Notes or  the other Loan Documents shall
  be limited to  the maximum nonusurious interest rate, but  any subsequent
  reductions in either LIBOR  or the Prime Rate, as the case  may be, shall
  not reduce the rate of Interest to accrue on this Agreement, the Notes or
  the  other  Loan Documents  below the  maximum nonusurious  interest rate
  until  the total amount of Interest accrued and paid on this Agreement or
  the Notes  equals the amount of  Interest which would  have accrued if  a
  rate per  annum equal to  LIBOR plus one  and one-half  percent (1 1/2%),
  LIBOR plus two and one-half percent (2 1/2%), the Prime Rate plus one and
  one-fourth percent  (1 1/4%), or  the interest rate  charged pursuant  to
  Section  9.3 herein, whichever  is applicable, had  at all  times been in
  effect.   It is further agreed that, without limitation of the foregoing,
  all calculations of the rate of Interest that are made for the purpose of
  determining whether such  rate exceeds the  maximum nonusurious  interest
  rate  applicable to  the Lender,  shall be  made to  the  extent possible
  permitted  by usury  laws  applicable to  the  Lender (now  or  hereafter
  enacted) by  amortizing, prorating  and spreading  all Interest  in equal
  parts  during the  period  of the  full  stated term  of the  obligations
  evidenced by this Agreement, the Notes or the other Loan Documents.

  Section 10.  Payments.

      10.1   Payments on Non-Business  Days.   Whenever any  payment to  be
  made  hereunder or  under the Notes  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; provided, however, that  if such next
  succeeding  Business Day  is in a  new month,  then the  payment required
  under this Agreement or the Notes shall be made on the first Business Day
  preceding the  original date on  which payment was  due. If  a payment of
  principal has been extended pursuant to this Section 10.1, interest shall
  be  payable  on  such  principal  at  the  applicable  rate  during  such
  extension.

      10.2  Repayment.   All amounts outstanding under this Agreement shall
  be repaid by the relevant Borrowers as follows:

         (a)  All amounts of principal  outstanding under Facility  A shall
  be repaid in four semi-annual  installments on June 30 and December 31 of
  each  year commencing on December 31, 1994.  The installments shall be in
  the amount  of USD 3,750,000;  provided,  however, that  the  final  such
  installment  shall  be  in  an amount  sufficient  to  repay all  amounts
  outstanding under Facility A.

         (b)  All amounts  outstanding under  Facility C shall  be paid  in
  full on the Facility C Maturity Date.

      10.3  Voluntary Prepayments.   The Borrowers shall have the  right to
  prepay  all amounts outstanding  under Facility  A in  whole or  in part,
  without premium  or penalty, from time  to time pursuant to  this Section
  10.3 on the following terms and conditions: (a) The Borrowers shall  give
  the  Lender at  least three  Business Days'  prior written notice  of its
  intent  to  prepay  such  amounts, the  amount  of  such prepayment,  the
  Facility  such prepayment  is  to be  applied  to and  the  date  of such
  prepayment  which shall be a  Facility A Interest Payment  Date; (b) each
  such prepayment  shall be in a principal amount  of at least USD 250,000;
  (c) at the  time of any prepayment, the Borrowers  shall pay all interest
  accrued on the principal amount of said prepayment. 

      10.4   Mandatory  Prepayment.    (a)   Upon  the  sale or  actual  or
  constructive  total loss of any Rig the  sale or insurance proceeds shall
  be  used to (i)  prepay amounts outstanding under  Facility A, along with 
  all interest accrued on such amount and all fees and other costs incurred
  by the Lender, (ii) then to prepay any amounts outstanding under Facility
  C along with all interest accrued on such amounts and all fees  and other
  costs incurred by the Lender  and (iii) finally, if all amounts  referred
  to in (i) and (ii) above have been  paid, any such proceeds shall be paid
  to the Lender and held in an interest bearing account at the Lender which
  shall  serve as additional  security for the Credit  Facility (unless the
  Borrowers provide the Lender with other security acceptable to the Lender
  in an amount  equal to, or  in excess of,  any such  proceeds).  If  such
  proceeds are placed in  an interest bearing  account, such funds and  any
  interest  earned on  them  will be  returned  to the  Borrowers  upon the
  repayment of all amounts due under this  Agreement and the termination of
  all Letters  of Credit.  The  payments referred to  in this Section  10.4
  shall  be made  immediately to  the Lender if  the Borrowers  receive the
  proceeds from any such  sale on a Facility  A Interest Payment Date.   If
  such  payment is not received on a  Facility A Interest Payment Date, the
  Borrowers shall immediately upon receipt place such proceeds of such sale
  as  are necessary to make the prepayment required by this Section 10.4 in
  an  interest bearing account at the Lender  for the benefit of the Lender
  and all  amounts in such account shall be paid to  the Lender on the next
  Interest  Payment Date;  provided,  however,  that  all  interest  earned
  thereon shall be paid to the Borrowers.

         (b)  Any prepayment made pursuant  to Section 10.4(a)  above which
  is  large enough to  pay amounts outstanding under  Facility C shall also
  reduce the  amount available  to be  drawn under Facility  C by  the same
  amount  unless the Borrowers provide security acceptable to the Lender in
  an amount equal to such reduction.

      10.5    Method  and  Place  of  Payment.    All  payments under  this
  Agreement shall be made to the Lender to such  account with its Amsterdam
  Branch Office in  Amsterdam South East (or such other  account elsewhere)
  as the Lender may designate and in immediately available funds, not later
  than 12:00 noon (Amsterdam time) on the date when due, each payment to be
  advised to  the Lender by  tested telex or  telefax one  (1) Business Day
  before the date when due  except if such payment is made  from an account
  at the Lender.

      10.6  Net  Payments.   (a) All sums  payable by  the Borrowers  under
  this Agreement,  whether of principal, interest, fees or otherwise, shall
  be paid  in full without set-off  or counterclaim and in  such amounts as
  may be  necessary in  order that  all such payments  (after deduction  or
  withholding for  or on account  of any present  or future taxes,  levies,
  imposts,  duties or  other charges  of whatsoever  nature imposed  by any
  Governmental Agency or  taxing authority thereof, other than any  tax, on
  or measured by  the net income of  the Lender pursuant to  the income tax
  laws of the  jurisdiction where the Lender's principal or  lending office
  is  located, including but  not limited to  the Branch Profits  Tax under
  Section  884  of the  Internal  Revenue Code  of 1986,  (collectively the
  "Taxes")) shall not  be less than the  amounts otherwise specified  to be
  paid under this Agreement or the Notes.

         (b)   A certificate  as to any  additional amounts  payable to the
  Lender  under this Section 10.6 submitted  to the Borrowers by the Lender
  shall show in  reasonable detail the amount payable and  the calculations
  used  to determine  in good  faith such  amount and  shall  be conclusive
  absent manifest error. 

         (c)   With  respect to  each deduction  or withholding  for or  on
  account of any Taxes, the Borrowers shall promptly furnish  to the Lender
  such  certificates, receipts and  other documents as may  be required (in
  the reasonable judgment of the Lender) to establish any income tax credit
  to which the Lender may be entitled.   In the event that such a deduction
  or  withholding  for Taxes  becomes  so applicable,  the Lender,  and the
  Borrowers will  enter into negotiations  in good  faith in  an effort  to
  attempt to minimize the effect of such Taxes.

         (d)  Within  thirty (30) days  of the execution of this Agreement,
  the Lender shall provide the Borrowers with a duly executed United States
  Department of Treasury  Form 1001, Ownership, Exemption, or  Reduced Rate
  Certificate  which form shall permit the Borrowers to avail themselves of
  the  current  Income  Tax  Treaty  between  the  United  States  and  The
  Netherlands.

      10.7   Rights  of Set-Off.   The  Lender shall  with  respect to  all
  amounts  payable hereunder have all rights of set-off, banker's lien, and
  counterclaim as  it  is  entitled  to  exercise  under  the  law  of  the
  jurisdiction in which such rights are exercised.

      10.8  Changes in Circumstances.  (a)  If, by  reason of any change in
  applicable  law  or regulation  or  regulatory  requirement or  directive
  whether  or  not having  the force  of  law or  in the  interpretation or
  application thereof by the governmental or quasi-governmental or judicial
  authority  or   central   bank  charged   with  the   administration   or
  interpretation of such  law or regulation, it shall  appear to the Lender
  that  it has become unlawful or impossible  for the Lender to perform its
  obligations hereunder, the Lender shall immediately notify the  Borrowers
  and,  after  such  notice, the  liability  of the  Lender  to  advance or
  maintain  the Commitment or  any Facility shall immediately  cease or, if
  any Advance  has been made  or a Letter  of Credit  issued, the Borrowers
  shall prepay such Advance and shall cooperate with the Lender in order to
  permit any outstanding Letters of Credit to  be terminated by the Lender,
  or  if  such  termination  cannot be  accomplished,  the  Borrowers shall
  deposit with the Lender an  amount equal to the aggregate amounts  of any
  outstanding Letters of Credit which  deposit shall be held by the  Lender
  as security until the Letters of Credit are terminated or expire.  In any
  such  event, but  without prejudice  to the  aforesaid obligation  of the
  Borrowers to prepay, the Borrowers and the Lender shall negotiate in good
  faith for  a period not  to exceed ninety  (90) days  commencing from the
  date notice  is given by  the Lender as  provided above,  with a view  to
  agreeing  to  terms for  making  or  continuing  to  make  available  the
  Commitment  available  from  another  jurisdiction  or  funding  it  from
  alternative sources.

         (b)  If the effect of any change  in applicable law or  regulation
  or  regulatory  requirement  or  in  the  interpretation  thereof  or  if
  compliance by  the  Lender  with  any applicable  direction  or  official
  request or  requirement (whether or not  having the force of  law) of any
  governmental or other authority, in any case having effect after the date
  hereof, is to:

              (i)   change the basis  of taxation to the Lender of  payment
  of  principal or interest or any other  payment due pursuant to the terms
  of this Agreement (other  than an increase in the rate of taxation on the
  Lender's overall net income or franchise taxes); or 

             (ii)   impose  or  modify  or  deem  applicable   any  reserve
  requirements or require the making of any special deposits  against or in
  respect of any assets or liabilities of, deposits with or for the account
  of or loans by the Lender; or

            (iii)   impose on the  Lender any other condition affecting the
  Commitment or  the Credit Facility  or any  part thereof,  the result  of
  which is either to increase the cost to the Lender of making available or
  maintaining the  Commitment or  any Facility  or any part  thereof or  to
  reduce the amount of  any payment received  by the Lender hereunder  then
  and in any such  case if such increase or reduction in the opinion of the
  Lender materially affects the interests of the Lender;

                 (A)   the Lender shall notify the Borrowers of any  of the
  above circumstances and use all reasonable efforts (without any financial
  commitment on its part)  to avoid the effects of  any such change and  in
  particular, the  Lender shall  consider  (without any  commitment on  its
  part)  fulfilling its  obligations under  this Agreement  through another
  office or transferring  its interest in this  Agreement and the Notes  at
  par  to one  or more  of its  affiliates not  affected  by the  change in
  applicable law  or regulation referred  to in this  Section 10.8 if  such
  transfer  can be accomplished  without material added cost  to the Lender
  and in a manner compatible with its operational procedures; or 

                 (B)   if the  efforts referred  to  in (A)  above fail  to
  have the effect of eliminating the increased cost or the reduction in the
  amount  of any payment  received, the Borrowers shall  on demand (whether
  made  before  or after  any  repayment of  the amounts  outstanding under
  Facilities A, C, D, E and F) pay to the Lender such amount  as the Lender
  certifies  together  with supporting  documentation  to  be necessary  to
  compensate it for such additional cost or reduction; and 

                 (C)   at   any   time   thereafter,   so   long   as   the
  circumstances giving  rise  to the  obligation to  make the  compensating
  payment continue, the Borrowers may, upon giving the Lender not less than
  thirty (30) days'  written notice which shall be irrevocable,  prepay any
  amounts outstanding under this Agreement to the Lender and cooperate with
  the Lender  in order to  permit any outstanding  Letters of  Credit to be
  terminated  by the Lender, or if such termination cannot be accomplished,
  the  Borrowers  shall deposit  with the  Lender  an amount  equal  to the
  aggregate  amounts of  any outstanding  Letters of  Credit  which deposit
  shall be  held by the Lender as security until  the Letters of Credit are
  terminated or expire.

         (c)  If any  amounts outstanding  under this Agreement  are to  be
  prepaid by  the  Borrowers pursuant  to any  of  the provisions  of  this
  Section 10.8  , the Borrowers  shall simultaneously with  such prepayment
  pay  to  the  Lender  all  accrued  interest  and  fees  on  the  amounts
  outstanding  under this  Agreement  and all  other  sums payable  by  the
  Borrowers to the Lender pursuant to this Agreement.

         (d)  The certificate  or determination  of the  Lender, as  to any
  matters referred to  in this Section  10.8 shall, save  for any  manifest
  error, be conclusive and binding on the Borrowers. 

      10.9  Unavailability of Dollars.

         (a)  In the event  that the Lender is not  able to obtain deposits
  in Dollars in the London  Interbank Market, the dollars required to  fund
  the amounts outstanding under this Agreement shall be made available from
  such  other financial sources as may be available to the Lender.  In such
  an event the rate of interest  will be, subject to Section 9.4 above, the
  aggregate  of 1-1/2%  and  the cost  to the  Lender  from such  financial
  sources and for periods as may be elected by the  Lender.  Each change in
  such  cost in  respect  of funding  the  amounts outstanding  under  this
  Agreement will  cause an immediate  corresponding change in  the rate  of
  interest  payable by the  relevant Borrowers.  This  arrangement shall be
  temporary and should deposits in Dollars subsequently become available to
  the  Lender in the  London Interbank Market, then  from the conclusion of
  the  then current Interest  Period for funding  from alternative sources,
  the  amounts outstanding under  this Agreement will bear  interest at the
  rates detailed in Section 9.1(a) hereof.

         (b)  In the  event  that the  Lender  is  unable (for  any  reason
  whatsoever) to acquire the required deposits from any source, the parties
  hereto shall meet  to discuss an alternative arrangement.  In the absence
  of mutual agreement and  at the end of  thirty (30) days after the  above
  mentioned date the  obligation of the Lender hereunder to  make available
  the  Commitment shall be  extinguished forthwith and/or (as  the case may
  be)  any amounts  drawn hereunder  and any  other amounts  due hereunder,
  shall  be repaid  forthwith by  the relevant  Borrowers and  the relevant
  Borrowers  shall  cooperate with  the  Lender  in  order  to  permit  any
  outstanding Letters of Credit to be terminated by the  Lender, or if such
  termination cannot be accomplished, such Borrowers shall deposit with the
  Lender  an amount  equal  to the  aggregate  amounts of  any  outstanding
  Letters  of Credit which deposit shall be  held by the Lender as security
  until the Letters of Credit are terminated or expire.

  Section 11.  Security.

      11.1  Mortgages.   The Credit Facility shall be secured in accordance
  with the provisions of the Mortgages.

      11.2    Assignments.    The  Credit  Facility  shall  be  secured  in
  accordance with the provisions of the Assignments.

      11.3  Pledges.   The Credit Facility  shall be secured  in accordance
  with the provisions of the Pledges.

      11.4   Pledge of  Earnings Accounts.   The  Credit Facility shall  be
  secured by  a  pledge under  Dutch law  of  the Borrowers'  accounts  no.
  02.19.63.932,  02.19.94.625,  02.14.41.685,  02.14.41.723,  02.14.41.731,
  02.14.41.790,  02.14.45.184,  02.14.45.168,  02.14.45.257,  02.20.28.579,
  02.17.78.981  and 02.17.78.949  at the  Lender  (the "Pledge  of Earnings
  Accounts").    The Pledge  of  Earnings  Accounts shall  be  in  form and
  substance  satisfactory to  the Lender  but the  remedies of  such pledge
  shall only be exercisable by the Lender  in the event of a default  under
  Section 17.1(a) below.

      11.5  Pledge  of Arcade Drilling Shares.   The Credit Facility  shall
  be  secured by  a pledge  or pledges  under Norwegian  law of  all Arcade
  Drilling shares  now owned or hereafter  acquired by any Borrower  and an
  assignment of any cash dividends or other cash distributions paid to  any 
  of  the Borrowers  as a shareholder  of Arcade  Drilling.   The Pledge of
  Arcade Drilling Shares shall be in form and substance satisfactory to the
  Lender.  Such  pledge shall be subject to the  Standstill Agreement dated
  August 31, 1991  among Arcade Shipping, RBC and Sonat  Offshore Drilling,
  Inc. (the "Standstill Agreement").   The Lender agrees to be bound by the
  undertakings in paragraph 1(H) of  the Standstill Agreement with  respect
  to the sale of such shares in the event of a foreclosure of the Pledge of
  Arcade Drilling Shares.

      11.6  Security  Deposits.  The  Credit Facility shall  be secured  by
  the Security Deposits.

      11.7    Further Assurances.    The  Borrowers  agree  to execute  and
  deliver to the  Lender such financing statements or other  instruments or
  documents as the  Lender may reasonably  request in order to  perfect the
  security created  by the Mortgages,  the Pledges and  the Assignments  or
  otherwise required by this Agreement.

  Section 12.  Conditions Precedent.

      12.1  Documents  Required as  Conditions Precedent  to the  Amendment
  and Restatement.  The obligation  of the Lender to complete the Amendment
  and Restatement of  the Facilities is subject to the  condition precedent
  that the Lender shall have  received all of the following, each  dated on
  or  before  the   Restructure  Date  and  each  in  form   and  substance
  satisfactory to the Lender:

         (a)  The Notes.

         (b)    Certified  copies  of  the  resolutions  of  the  Boards of
  Directors of each of the Borrowers authorizing the execution and delivery
  by each  of the Borrowers of the Loan  Documents on behalf of each of the
  Borrowers, and all documents evidencing other necessary corporate  action
  with respect to the Loan Documents.

         (c)   Certificate of the Secretary  or the  Assistant Secretary of
  each Borrower certifying the names and true signatures of the officers of
  each Borrower  authorized to  sign the Loan  Documents on behalf  of such
  Borrower and the other  documents or certificates to be  executed by such
  Borrower pursuant to this Agreement.

         (d)  Copies  certified as of a recent date by the Secretary or the
  Assistant Secretary of each Borrower of its By-Laws.

         (e)  a  copy  of  each  Borrower's  Certificate  of  Incorporation
  certified by the Secretary of State of the state  of incorporation within
  thirty (30) days  from the date of this Agreement  and certificates dated
  as  of  a  recent  date  of the  Secretary  of  State  of  the  state  of
  incorporation as to the existence and good standing of each Borrower.

         (f)   Executed counterparts of each of  the Loan Documents, all in
  a form satisfactory to the Lender and its counsel.

         (g)  An opinion of  counsel to the Borrowers in form and substance
  acceptable to the Lender. 

         (h)    If  the  Restructure  Date  is  not  a  Drawdown   Date,  a
  certificate dated  the first Drawdown Date  of an officer of  each of the
  Borrowers certifying that:

              (i)  The  representations and warranties contained in Section
  14 hereof are  correct on and as of the  Drawdown Date as though  made on
  and as of such date; and

             (ii)   No  event has  occurred  and  is continuing,  or  would
  result  from the  Advance, or the  issuance of  a Letter  of Credit which
  constitutes an Event of Default or with the passing of time or the giving
  of notice would constitute an Event of Default.

         (i)   The  Borrowers shall  have  executed  and delivered  to  the
  Lender copies  of all  documents  and filings  and shall  have taken  all
  actions necessary to  continue the perfection  of the security  interests
  created by  the Mortgages, the  Pledges, the Assignments,  the Pledge  of
  Earnings  Accounts  and the  Pledge  of Arcade  Drilling Shares  as first
  priority  perfected security interests except that the Mortgage as to the
  drilling rigs ROGER  W. MOWELL, J. T.  ANGEL and JIM CUNNINGHAM  may be a
  second priority perfected security interest.

         (j)   All orders,  consents,  approvals, licenses,  authorizations
  and  validations of, and  filings, recordings and  registrations with and
  exemptions  by  any Governmental  Agency  or any  Person (other  than any
  routine  filings  which may  be  required  after  the  date  hereof  with
  appropriate governmental authorities in connection with the operation  of
  the  Rigs)  required  to  (i)   authorize  the  execution,  delivery  and
  performance  by the Borrowers of  the Loan Documents or  (ii) prevent the
  execution,  delivery  and  performance  by  the  Borrowers  of  the  Loan
  Documents from  resulting in a breach  of any of the  terms or conditions
  of, or  resulting in the  imposition of any  lien, charge or  encumbrance
  upon  any  properties of  the  Borrowers pursuant  to, or  constituting a
  default  (with due  notice or  lapse of  time or  both), if  such breach,
  imposition or default would result in a materially adverse  change in the
  financial position of the Borrowers, or resulting in an occurrence of any
  event  for which any  holder or holders  of Indebtedness may  declare the
  same  due and payable under, any indenture, agreement, order, judgment or
  instrument under which  any Borrower is a party (other than the Mortgage,
  the Pledges or the Assignments) or to the  Borrowers' knowledge after due
  inquiry  by  which  the Borrowers  or  their  property  may be  bound  or
  affected,  or under the  Certificates of Incorporation or  By-Laws of the
  Borrowers, shall have been obtained or made.

         (k)  Evidence of  the insurance required by  Section 15.3 of  this
  Agreement  and the  insurance brokers  report referred  to in  Article I,
  Section 15(b) of the Mortgages.

         (l)  Evidence that RBC has made a  capital contribution to RBD  of
  all the  issued and outstanding  shares of common  stock of  RBX, RBI and
  RBB.

         (m)  An opinion of Haight, Gardner,  Poor & Havens, counsel to the
  Lender, in form and substance acceptable to the Lender.

         (n)  A certificate  signed by the chief executive officer or chief
  financial officer of RBC as  to any liens (as defined in  Section 16.1(f)
  below) on any properties of the Borrowers. 

         (o)  An opinion of Arias, Fabrega  & Fabrega in form and substance
  acceptable to the Lender.

         (p)  An opinion of Clayton  Utz in form  and substance  acceptable
  to the Lender.

      12.2    Waiver  of  Conditions  Precedent.    All  of  the conditions
  precedent contained  in this Section 12  are for the sole  benefit of the
  Lender and  the Lender  may waive  any  or all  of them  in its  absolute
  discretion.

  Section 13.  Fees and Expenses.

      13.1   Fees.  The following  fees have been or  shall be  paid to the
  Lender by the relevant Borrowers:

         (a)  as  to the  Commitment, the Borrowers,jointly  and severally,
  have paid an arrangement fee of USD 1,800,000;

         (b)  as  to Facility  D,  the  Borrowers, jointly  and  severally,
  shall pay a  facility fee of 1% per annum of the amount of the Facility D
  Letter of Credit outstanding during each calendar quarter; such fee to be
  payable in arrears on the last Business Day of each calendar quarter;

         (c)  as  to Facility  E,  the  Borrowers, jointly  and  severally,
  shall  pay an  arrangement fee of  USD 50,000  on the  date hereof  and a
  facility fee of 1% per annum of the total amount of Facility E Letters of
  Credit issued or   outstanding  from time  to time  during each  calendar
  quarter;  such fee  to be  calculated  on a  daily basis  for  the actual
  amounts outstanding and  payable in arrears on  the last Business Day  of
  each calendar quarter;

         (d)  as  to Facility  E,  the  Borrowers, jointly  and  severally,
  shall pay a commitment fee of 1/2% per annum of the total  amount of such
  Facility not utilized  by the issuance  of Facility  E Letters of  Credit
  during each  calendar quarter; such fee  to be payable in  arrears on the
  last Business Day of each calendar quarter.

         (e)  as  to Facility  F,  the  Borrowers, jointly  and  severally,
  shall pay an  arrangement fee  of USD 125,000  on the date  hereof and  a
  facility fee of 1% per annum of  the highest amount of Facility F Letters
  of  Credit issued  or  still outstanding  from time  to time  during each
  calendar  quarter; such  fee to be  calculated on  a daily  basis for the
  actual  amounts outstanding and  payable in arrears on  the last Business
  Day of each calendar quarter; 

         (f)   as  to  Facility F,  the  Borrowers, jointly  and severally,
  shall pay a commitment fee of 1/2% per annum of the total  amount of such
  Facility not  utilized by  the issuance of  Facility F Letters  of Credit
  during each  calendar quarter; such fee  to be payable in  arrears on the
  last Business Day of each calendar quarter;

      13.2  Expenses.  The  Borrowers jointly and severally  agree, whether
  or not any Advance  is made or any Letter of  Credit is issued hereunder,
  to promptly reimburse the Lender  upon demand for all reasonable fees and
  disbursements  of the Lender,  including, but not limited  to, travel and
  other  out-of-pocket expenses of the Lender and  the fees and expenses of
  external  counsel  to the  Lender,  incurred in  connection with  (a) the
  preparation, execution and delivery of the Loan Documents, and the making
  of Advances  and the issuance of  Letters of Credit under  this Agreement
  and all other documents referred to herein, and any amendments or waivers
  to  or  termination  of  any  thereof,  (b)  the  recording,  filing  and
  perfection  of all security  interests created by the  Loan Documents and
  (c) the protection of the rights of the Lender and the Trustee under this
  Agreement  and all other documents referred to herein and the enforcement
  of  payment  of the  Obligations,  whether  by  judicial  proceedings  or
  otherwise.  The obligation of the Borrowers under this Section 13.2 shall
  survive payment of all other amounts due under this Agreement.

  Section 14.  Representations and Warranties of Borrowers. 

         The Borrowers represent and warrant to the Lender as follows:

      14.1   Due Incorporation,  Qualification, Etc.   Each  Borrower is  a
  corporation duly organized, validly  existing and in good standing  under
  the laws of (i)  the State of Delaware with respect to RBC (ii) the State
  of Oklahoma with respect to RBB, RBD, RBX  and RBI and (iii) the State of
  Western Australia with  respect to RBA and each is  duly qualified and in
  good   standing  as  a   foreign  corporation  to  do   business  in  the
  jurisdictions in which  its ownership of property or conduct  of business
  legally requires  such qualification, and  each has full  corporate power
  and  authority  to own  its  properties and  assets  and  to conduct  its
  business as presently conducted.

      14.2    Capacity.    Each  Borrower  has  full  corporate  power  and
  authority  to  execute and  deliver,  and  to  perform  and  observe  the
  provisions of the Loan Documents to  which it is a party and to carry out
  the transactions contemplated hereby and thereby.

      14.3   Authority  and Enforceability.   The  execution, delivery  and
  performance by  the Borrowers  of the  Loan Documents  to which  they are
  parties have been or will  be duly authorized by all  necessary corporate
  action.     This  Agreement  (including  the  New  York  choice  of  law)
  constitutes, and the Notes,  the Mortgages, the Assignments, the Pledges,
  the Pledge of Earnings Accounts and the Pledge of  the Arcade Shares when
  delivered by  the Borrowers hereunder  will constitute  legal, valid  and
  binding obligations of the Borrowers party to such documents  enforceable
  against them in  accordance with their respective terms, subject  to laws
  affecting   creditors'   rights   generally  and   applicable   equitable
  principles.  The  Mortgages, the Assignments, the Pledges, the  Pledge of
  Earnings Accounts and the Pledge of the Arcade Shares  shall on the first
  Drawdown  Date  create  and  constitute  valid  and  perfected   security
  interests  in and  to  the properties  covered  thereby, subject  to  the
  exceptions contained  therein, enforceable against all  third parties and
  shall secure  the payment of all  amounts due under this  Agreement.  The
  Mortgages shall constitute first priority security interests as to all of
  the Rigs except as to the ROGER W. MOWELL, J. T. ANGEL and JIM CUNNINGHAM
  as to which second priority security interests shall be created.

      14.4   Governmental Approvals.  No order, consent, approval, license,
  authorization,  or validation  of, or  filing, recording  or registration
  with (other than any routine filings which may be required after the date
  hereof with  appropriate governmental authorities in  connection with the
  operation  of the  Rigs), or  exemption by,  any Governmental  Agency, is
  required  to authorize  the  execution, delivery  and performance  by the
  Borrowers of the Loan Documents to which they are parties. 

      14.5  Compliance with  Other Instruments.  The execution and delivery
  of  this Agreement  and compliance with  its terms,  the issuance  of the
  Notes and the  execution and delivery of the Mortgages,  the Assignments,
  the Pledges, the Pledge of Earnings Accounts and the Pledge of the Arcade
  Shares and the  compliance with their terms as contemplated  herein, will
  not result in a breach of any of the terms or conditions of, or result in
  the imposition of any lien, charge or encumbrance  upon any properties of
  the Borrowers pursuant  to, or constitute a  default (with due notice  or
  lapse of time or both), or result in an occurrence of any event for which
  any  holder  or holders  of  Indebtedness may  declare  the same  due and
  payable  under any  indenture, agreement,  order, judgment  or instrument
  under  which  any of  the  Borrowers  is a  party  or  to the  Borrowers'
  knowledge,  after due inquiry,  by which the Borrowers  or their property
  may be bound  or affected, or under the Certificates  of Incorporation or
  By-Laws of  the Borrowers, and,  to the Borrowers'  knowledge, after  due
  inquiry, will not violate any provision of applicable law.

      14.6  Financial Statements.   The consolidated balance sheets  of RBC
  as of December 31, 1994 and the related consolidated statements of income
  and changes in financial position and shareholders' equity of RBC for the
  fiscal year  ended on that date,  copies of which have  been furnished to
  the  Lender, have  been prepared  in  accordance with  generally accepted
  accounting principles and fairly  present the financial conditions of RBC
  and the other Borrowers on a consolidated basis, as of such date and  the
  results  of  the  operations  of  RBC  and  the  other  Borrowers  on   a
  consolidated basis for the period ended on such date.   RBC and the other
  Borrowers have  no contingent liabilities which,  if determined adversely
  to them  (either singly  or  in the  aggregate),  would have  a  material
  adverse effect  on RBC and  the other  Borrowers on a  consolidated basis
  except as heretofore disclosed to the Lender in writing.

      14.7  Material Adverse Events.   Since December 31, 1994, neither the
  business, the prospects, the properties  nor the condition (financial  or
  otherwise)  of RBC and  the other  Borrowers on a  consolidated basis has
  been materially and adversely affected in any way.

      14.8    Litigation, Etc.    Except  as  heretofore  disclosed by  the
  Borrowers  to the  Lender  in writing,  there  are no  actions,  suits or
  proceedings pending,  or to  the knowledge of  the Borrowers  threatened,
  against or  affecting any of the Borrowers at law or in equity, which, if
  adversely  determined,  would  have  a  material adverse  effect  on  the
  business, prospects, properties or condition (financial or otherwise)  of
  RBC or  the other Borrowers on  a consolidated basis.   To the Borrowers'
  knowledge, none of the Borrowers are in violation or default with respect
  to any  applicable  laws and/or  regulations which  non-compliance  would
  materially  affect  the  business,  prospects,  properties  or  condition
  (financial  or  otherwise) of  the  Borrowers  nor  is  any  Borrower  in
  violation  or default with respect to any order, writ, injunction, demand
  or decree of any court or  any Person or in violation or default (nor  is
  there any  waiver in effect  which, if not in  effect, would result  in a
  violation or  default)  in  any material  respect  under  any  indenture,
  agreement or other instrument under which any Borrower is  a party or may
  be bound, default  under which might materially and adversely  affect the
  business,  prospects  or  condition  (financial  or  otherwise)  of   any
  Borrower. 

      14.9   Principal Place of  Business.  The chief  executive office and
  principal   place  of  business  of  the  Borrowers  is  located  at  901
  Threadneedle, Suite 200, Houston, Texas  77079.

      14.10    Patent and  Other Rights.  The  Borrowers have the  right to
  use  all patents,  licenses,  trademarks,  trade  names,  trade  secrets,
  copyrights and  all rights with  respect thereto, which  are required  to
  conduct their businesses as now conducted without known conflict with the
  rights  of  others  which  would  materially and  adversely  affect  such
  businesses.

      14.11   Taxes.  The Borrowers  have filed or  caused to be filed  all
  tax returns which are required to be filed by them, pursuant to the laws,
  regulations or orders of each Person with taxing power over the Borrowers
  or their  assets.  The  Borrowers have  paid, or made  provision for  the
  payment of,  all taxes, assessments, fees and  other governmental charges
  which have or may have become due pursuant to said returns, or otherwise,
  or  pursuant to  any assessment  received by  the Borrowers,  except such
  taxes,  if any,  as are  being contested  in good faith  and as  to which
  adequate  reserves  (determined  in  accordance with  generally  accepted
  accounting principles)  have been  provided.  The  charges, accruals  and
  reserves  in respect of taxes on the  books of the Borrowers are adequate
  (determined in accordance with generally accepted accounting principles).
  Other than as disclosed to  the Lender in writing, the Borrowers  know of
  no  proposed  material  tax  assessment  against  any  Borrower,  and  no
  extension of time for the  assessment of federal, state or local taxes of
  the Borrowers is in effect or has been requested.

      14.12   Compliance with Federal Reserve  Board Regulations.   No part
  of the  proceeds of any  Advance or  any Letter of  Credit will be  used,
  directly or  indirectly, for the  purpose of purchasing  or carrying  any
  margin  security  within the  meaning  of Regulation  U  of the  Board of
  Governors of the Federal Reserve System, or for the purpose of purchasing
  or carrying or trading in  any securities under such circumstances  as to
  involve the Borrowers in a violation of Regulation X of said Board or the
  Lender in  a violation of  Regulation U  of said Board.   In  particular,
  without limitation of the foregoing, no Borrower will use any part of the
  proceeds of any  Advance or any Letter of Credit  to be made hereunder to
  acquire for itself  or for any other person any  publicly-held securities
  of any  kind.   The assets  of the  Borrowers do not  include any  margin
  securities,  and the Borrowers have no present intention of acquiring any
  margin  securities  except  as  heretofore  disclosed  to  the Lender  in
  writing.  As used in this Section 14.12, the  terms "margin security" and
  "purpose of purchasing  or carrying" shall have the meanings  assigned to
  them  in the  aforesaid Regulation  U, and  the term  "publicly-held", in
  respect  of securities, shall have the meaning  assigned to it in Section
  220.7(a) of Regulation T of said Board.  If requested by  the Lender, the
  Borrowers  will  furnish  to  the Lender  a  statement  or statements  in
  conformity  with the requirements of Federal Reserve Form U-1 referred to
  in said Regulation U.

      14.13    Employee  Retirement  Income  Security  Act  of  1974.    No
  Reportable Event has occurred and is continuing with respect to any Plan.

      14.14  Investment Company Act  of 1940.  None of  the Borrowers is an
  "investment  company" within the meaning of the Investment Company Act of
  1940. 

      14.15  Subsidiaries.  RBB, RBX and RBI are wholly  owned subsidiaries
  of RBD.   RBD is a wholly owned subsidiary of RBC.  RBA is a wholly owned
  subsidiary of RBX.

      14.16  Environmental Compliance.

         (a)   The  Borrowers  have duly  complied with,  and the  Rigs and
  their other properties  and operations are in compliance in  all material
  respects with, the provisions of all applicable environmental, health and
  safety  laws,  codes  and  ordinances   and  all  rules  and  regulations
  promulgated thereunder of all Governmental Agencies.

         (b)  The Borrowers have received  no notice of,  and neither  know
  of nor suspect,  any fact(s) which might constitute a  material violation
  of  any  applicable  environmental,  health  or  safety  laws,  codes  or
  ordinances, and any  rules or regulations  promulgated thereunder of  all
  Governmental Agencies, which relate  to the use or ownership  of the Rigs
  or other properties owned or operated by the Borrowers.

         (c)  The  Borrowers  have  been  issued  all  required  applicable
  permits,  licenses,  certificates  and  approvals  of   all  Governmental
  Agencies  relating to (i) air emissions, (ii) discharges to surface water
  or  ground water,  (iii)  noise emissions,  (iv)  solid or  liquid  waste
  disposal, (v) the  use, generation,  storage, transportation,  treatment,
  recycling   or   disposal  of   Hazardous   Substances   or  (vi)   other
  environmental, health or  safety matters necessary for the Rigs  or other
  properties and  operations owned or  operated by the  Borrowers and  such
  permits, licenses,  certificates and  approvals  are in  full  force  and
  effect on the date of this Agreement.

         (d)  Except  in  accordance  with  a  valid  governmental  permit,
  license, certificate or approval, there has been no spill or unauthorized
  discharge  or release of  any Hazardous Substance to  the environment at,
  from, or as  a result of any operations  on the Rigs or  other properties
  and operations owned or operated by the Borrowers.

         (e)  There  has  been  no  material  complaint,  compliance order,
  compliance  schedule, notice letter, notice of  citation or other similar
  notice from any  applicable environmental agency  which involves  actions
  on,  or  concerns the  operations of  the  Rigs or  other  properties and
  operations owned or operated by the Borrowers.

         (f)  The Charters remain in full  force and effect and continue to
  be the valid and binding obligations of the parties thereto following the
  purchase  of the interests  in the  Charter Notes referred  to in Section
  3.1(b) above.

  Section 15.  Affirmative Covenants of Borrowers.

       Until  the payment in  full of all amounts  due under this Agreement
  and  the Notes  by the  Borrowers and  the expiration  of all  Letters of
  Credit,  unless  compliance shall  have  been waived  by the  Lender, the
  Borrowers agree that: 

       15.1  Financial Statements and Reports and Inspection.

         (a)  RBC will furnish to the Lender:

              (i)   as soon as  possible and in any  event within five  (5)
  Business  Days after the  occurrence of  each Event of Default  or of any
  default in  the performance of  the Loan  Documents, or each  event which
  with the giving of notice or lapse of time, or both,  would constitute an
  Event of Default or  such a default, which  is continuing on the date  of
  such  statement,  the statement  of  the chief  financial officer  of RBC
  setting forth  the details of such  Event of Default or  event or default
  and the action which the Borrowers propose to take with respect thereto;

             (ii)   as soon as  available and in any  event within 45  days
  after  the close  of each  of the  first three  quarters of  RBC's fiscal
  years, a  copy  of quarterly  consolidated financial  statements for  RBC
  prepared in accordance with generally accepted accounting principles  and
  certified by the chief financial officer of RBC; 

            (iii)   as soon as  available and in any  event within 90  days
  after  the close of RBC's fiscal years, a copy of the consolidated annual
  audit  report  for such  year  for  RBC, including  therein, consolidated
  financial statements consisting of the balance sheet of RBC as of the end
  of such fiscal year, consolidated statements of income and changes in the
  financial  position of  RBC  for such  fiscal  year certified  by  Arthur
  Andersen &  Co. or  other  independent public  accountants of  recognized
  standing reasonably acceptable to  the Lender, and the independent public
  accountants  shall certify that  in the course of  their audit activities
  they have  not become aware  of any event  which constitutes  an Event of
  Default hereunder  or which would constitute an Event  of Default but for
  the requirement that notice be given or that time has elapsed;

             (iv)    such  other financial  information  as the  Lender may
  reasonably request; and

              (v)   (A) as soon  as possible, and  in any  event, within 30
  days  after  the  Borrowers know,  or  have  reason  to  know,  that  any
  Reportable Event  with respect to any  Plan has occurred,  a statement of
  the chief financial officer of the  Borrowers setting forth details as to
  such Reportable Event and the action which the  Borrowers propose to take
  with  respect  thereto,  together with  a  copy  of  the notice  of  such
  Reportable  Event given to the Pension Benefit Guaranty Corporation, if a
  copy of  such notice is  available to the  Borrowers, (B) promptly  after
  filing thereof with  the United States Secretary of  Labor or the Pension
  Benefit Guaranty Corporation copies of each annual report with respect to
  each Plan,  and (C) promptly after  receipt thereof a copy  of any notice
  the Borrowers, or any member of the Controlled Group may receive from the
  Pension Benefit Guaranty Corporation or the Internal Revenue Service with
  respect to  any Plan; provided, however, this Section 15.1(a)(v)(C) shall
  not  apply to notice of general application promulgated by the Department
  of Labor.

         (b)  The Borrowers  will, upon request, furnish to the Lender such
  information  as the  Lender may  reasonably request  with respect  to the
  business, affairs or condition (financial  or otherwise) of the Borrowers
  and will permit the Lender or its  representatives at any reasonable time
  or  times during normal business hours, to  inspect the properties of the
  Borrowers,  to inspect,  audit and  examine the books  or records  of the 
  Borrowers and to take extracts  therefrom  and will reimburse  the Lender
  for all  reasonable expenses incurred in  connection therewith; provided,
  however,  that any inspection of the Rigs shall be subject to the consent
  of the operators  under applicable drilling contracts and the  consent of
  applicable Governmental Agencies; which consents the Borrowers shall  use
  their best efforts to obtain.

         (c)  The Borrowers  will, upon request, furnish to  the Lender all
  financial  information distributed  to creditors  or shareholders  in any
  recapitalization or  reorganization in  which any  of the  Borrowers  are
  involved as debtors or creditors.

         (d)  All non-public  information obtained by  the Lender  pursuant
  to any Loan  Document concerning the Borrowers, the Rigs,  the Borrowers'
  other assets or the Borrowers' financial condition and prospects shall be
  kept  confidential by the  Lender subject, however, to  requests from any
  applicable Governmental  Agencies and to disclosures  of such information
  to assignees and participants (and potential assignees and  participants)
  pursuant to  Section  19.8 hereof  unless such  non-governmental  parties
  shall agree prior to such disclosure to be bound by this Section 15.1(d).

         (e)  the  Borrowers  shall  furnish  to  the  Lender  as  soon  as
  possible any  information available to them  concerning material business
  developments  at Arcade Drilling including, but not limited to, notice of
  any  cash dividends or  other cash distributions paid  to shareholders of
  Arcade Drilling.

      15.2  Consolidated  Financial Statements.   Notwithstanding  anything
  in this Agreement to the contrary, the  consolidated financial statements
  of  RBC include and  shall continue to  include the  financial results of
  RBC, the other Borrowers and all subsidiaries of the Borrowers and all of
  the financial tests  and ratios contained in Section 16 of this Agreement
  shall be based on such consolidated financial results.

      15.3   Insurance.    The  Borrowers  shall insure,  or  cause  to  be
  insured, the Rigs pursuant to  the terms of Article I, Section  15 of the
  Mortgages.   The Borrowers shall on each  anniversary of the date of this
  Agreement furnish the Lender with evidence of all such insurance policies
  currently in force.

      15.4  Other Debt.  The Borrowers will promptly  pay and discharge any
  and  all  Indebtedness,  liens,  charges,  all  taxes,  assessments   and
  governmental charges or  levies imposed upon them or upon their income or
  profits,  or upon  any of  their properties  prior to  the date  on which
  penalties  accrue thereon,  and  lawful claims  which,  if  unpaid, might
  become  a lien or charge upon the  property of the Borrowers, except such
  as  may  in good  faith  be contested  or disputed,  provided appropriate
  reserves are maintained to the satisfaction of the Lender.

      15.5  Maintenance of Existence;  Conduct of Business.   The Borrowers
  will preserve and maintain their  corporate existence, their business  as
  presently conducted,  and all of their rights,  privileges and franchises
  necessary  or desirable  in the  normal conduct  of said  businesses, and
  conduct their businesses in an orderly, efficient and regular manner.

      15.6   Financial Records.   The Borrowers  will keep books  of record
  and account in which proper entries will be made of their transactions in
  accordance with generally accepted accounting principles. 

      15.7   Maintenance of Rigs.  The Borrowers will maintain, or cause to
  be maintained, the  Rigs in the highest classification for  such drilling
  rigs  with the American  Bureau of Shipping or  such other classification
  society as the Trustee may approve.

      15.8  Environmental Compliance.

         (a)  The Borrowers  will  comply  with  and  cause  all  of  their
  employees, agents, contractors  and subcontractors to so  comply with (i)
  all  applicable   environmental,  health  and  safety   laws,  codes  and
  ordinances,  and all rules and regulations  promulgated thereunder of all
  Governmental Agencies and (ii) the terms and conditions of all applicable
  permits,  licenses,  certificates   and  approvals  of  all  Governmental
  Agencies now or hereafter granted or obtained with respect to the Rigs or
  other properties and operations owned or operated by the Borrowers.

         (b)  The  Borrowers  will   use  their  best  efforts  and  safety
  practices  to  prevent   the  release,  threatened  release,   discharge,
  disposal, escape or spill of Hazardous Substances on or about the Rigs or
  other properties owned or operated by the Borrowers.

      15.9  Environmental  Notifications.  The Borrowers  shall notify  the
  Lender,  in writing,  within twenty  (20) days  of any  of  the following
  events:

         (a)  Any  written  notification   made  by  any  Borrower  to  any
  federal, state or local  environmental agency required under any federal,
  state or local environmental statute, regulation or ordinance relating to
  a spill or  unauthorized discharge or release of any  Hazardous Substance
  to the environment  at, from, or  as a result  of any operations on,  the
  Rigs  or  other properties  and  operations  owned  or  operated  by  the
  Borrowers;

         (b)  Receipt  of  service   by  any  Borrower  of  any  complaint,
  compliance  order,   compliance  schedule,  notice   letter,  notice   of
  violation,  citation or other  similar notice from any  federal, state or
  local environmental agency  which involves  actions on,  or concerns  the
  operations  on,  the Rigs  or  other properties  and operations  owned or
  operated by the Borrowers;

         (c)  Receipt  of  service   by  any  Borrower  of  any  complaint,
  compliance  order,   compliance  schedule,  notice   letter,  notice   of
  violation, citation or other similar notice or any judicial demand by any
  federal, state or local  environmental agency, or third person,  alleging
  (i)  any  spill,  unauthorized  discharge  or release  of  any  Hazardous
  Substance  to the environment from, or as  a result of the operations on,
  the  Rigs or  other properties  and operations owned  or operated  by the
  Borrowers or (ii)  violations of applicable laws, regulations  or permits
  regarding the generation,  storage, handling, treatment,  transportation,
  recycling, release or disposal of Hazardous  Substances on or as a result
  of operations  on the Rigs  or other  properties and operations  owned or
  operated by the Borrowers.

         (d)  It   is  understood   by   the   parties  hereto   that   the
  aforementioned notice is  solely for  the Lender's  information, may  not
  otherwise  be required by any federal, state or local environmental laws,
  regulations  or   ordinances,  and  is  to   be  considered  confidential
  information  by  the  Lender;  provided the  Lender  is  advised of  such 
  confidentiality  and no waivers of such confidentiality have been made by
  the parties hereto.  Failure by the Borrowers to give timely notice shall
  constitute  an Event of  Default under Section  17.1(b) hereof; provided,
  however, that upon notice of such default to the  Borrowers by the Lender
  such Event of Default may be  cured by provision by the Borrowers  of the
  required notice within 15 days of notice of such Event of Default. 

         (e)  The  term  "environmental   agency"  as  used  herein   shall
  include,  but  not  be   limited  to,  the  United  States  Environmental
  Protection Agency,  the United  States  Coast Guard,  the  United  States
  Minerals   Management   Service,  the   United   States   Department   of
  Transportation  (in  its  administration   of  the  Hazardous   Materials
  Transportation Act, 49 U.S.C. Sec. 1801, et seq.) and  other analogous or
  similar  Governmental  Agencies  regulating  or  administering  statutes,
  regulations or ordinances relating to or  imposing liability or standards
  of   conduct  concerning   the  generation,  storage,   use,  production,
  transportation, handling, treatment,  recycling, release  or disposal  of
  any Hazardous Substance.

      15.10   Environmental  Indemnification.   (a)   The  Borrowers hereby
  jointly and  severally agree  to indemnify  and hold  the Lender and  the
  Trustee  jointly  and severally  harmless  from and  against any  and all
  claims, losses,  liability, damages and  injuries of any  kind whatsoever
  asserted against the Lender or the Trustee with respect to or as a direct
  result of  the  presence, escape,  seepage, spillage,  release,  leaking,
  discharge or migration from any Rig or other properties owned or operated
  by  the  Borrowers   of  any  Hazardous   Substance,  including   without
  limitation,  any   claims  asserted  or  arising   under  any  applicable
  environmental,  health  and safety  laws, codes  and ordinances,  and all
  rules  and   regulations  promulgated  thereunder  of   all  Governmental
  Agencies, regardless of whether or not caused by or within the control of
  the Borrowers.

         (b)  It is  the parties'  understanding  that the  Lender and  the
  Trustee  do not  now, have  never  and do  not  intend in  the future  to
  exercise  any operational  control or  maintenance over  the Rigs  or any
  other properties and  operations owned or operated by the  Borrowers, nor
  have they in the past, presently, or intend in the future to, maintain an
  ownership interest in the Rigs or  any other properties owned or operated
  by the Borrowers.  Should, however,  the Lender or the Trustee  hereafter
  exercise any ownership  interest in or operational control over  the Rigs
  or  any  other  properties  owned or  operated  by  the Borrowers,  e.g.,
  including  but not limited to, through foreclosure, then the above stated
  indemnity and  hold harmless  shall no longer  apply with respect  to any
  actions  or failures to  act by  the Lender or the  Trustee subsequent to
  exercising  such  interest  or operational  control,  if  such  action or
  inaction by the  Lender or the Trustee is  admitted by the Lender  or the
  Trustee or is found by  a court of competent jurisdiction to  have caused
  or  made worse any  condition for which liability  is asserted, including
  but not  limited to,  the presence,  escape, seepage,  spillage, leaking,
  discharge or migration on or  from the Rigs or other properties  owned or
  operated by the Borrowers of any Hazardous Substance.

         (c)  The indemnity  and hold  harmless contained  in this  Section
  15.10 shall not extend to the Lender or the Trustee in its capacity as an
  equity  investor in  the Borrowers  or  as an  owner of  any  property or
  interest as to which the Borrowers are also owners but to its capacity as
  a  lender,  a holder  of  security interests,  a beneficiary  of security
  interests or as an owner following foreclosure or enforcement (whether by
  judicial or non-judicial means) of such security interests.

      15.11    Charter  Parties.    The  Borrowers  will  comply  with  the
  provisions  of Article I, Section 14 of the Mortgages concerning charters
  and will furnish  to the  Lender upon  execution, copies  of all  charter
  parties and sub-charter parties pertaining to the Rigs.

  Section 16.  Negative Covenants of Borrowers.

         Until the payment in full of all amounts  due under this Agreement
  and  the Notes  by the  Borrowers and  the expiration  of all  Letters of
  Credit,  without the prior  written consent of the  Lender (which consent
  shall not be unreasonably withheld), the Borrowers agree they will not:

      16.1   Liens.   Create, incur,  assume or  suffer to  exist any  lien
  (including any  encumbrance or security  interest) of any  kind upon  the
  Rigs  or any of their other material assets, revenues or right to receive
  revenue whether now owned or hereafter acquired, except:

         (a)   liens for taxes,  assessments or  other governmental charges
  or  levies not  at  the time  delinquent  or thereafter  payable  without
  penalty or being contested in  good faith, provided provision is  made to
  the reasonable  satisfaction  of  the Lender  for  the  eventual  payment
  thereof in the event it is found that such are payable by the Borrowers;

         (b)   liens  of  carriers, warehousemen,  mechanics,  materialmen,
  landlords, operators  of, and participants  in, any oil,  gas or  mineral
  properties of  any of the  Borrowers and  maritime liens incurred  in the
  ordinary course of  business for sums not  overdue or being contested  in
  good  faith, provided provision is made to the reasonable satisfaction of
  the Lender for the eventual payment thereof in the event it is found that
  such sums are payable by the Borrowers;

         (c)    liens  incurred  in  the  ordinary  course  of  business in
  connection with  workmen's compensation, unemployment  insurance or other
  forms  of governmental insurance or benefits, or to secure performance of
  tenders  and statutory obligations entered into in the ordinary course of
  business  or  to secure  obligations  on  surety or  appeal  bonds  in an
  aggregate  amount not exceeding  (i) USD 2,500,000 at any  one time, (ii)
  USD 5,000,000 in  any calendar year  and (iii) USD 10,000,000  during the
  term of this Agreement;

         (d)   judgment  liens in  existence less  than 30  days after  the
  entry thereof or with respect  to which execution has been stayed  or the
  payment of which is covered in full by insurance;

         (e)  liens required by the terms of this Agreement; and

         (f)  liens  existing  as  of  the  date  of  this  Agreement  and
  disclosed in writing to the Lender.

      Notwithstanding anything in this  Section 16.1 to the contrary, in no
  event shall the  liens, encumbrances and security  interests permitted by
  this Section  16.1 materially impair (in  the opinion of  the Lender) the
  business  or financial condition  of the  Borrowers or  the value  of the
  properties of the Borrowers taken as a whole. 

      16.2    Dividends.    Permit RBC  to  declare  or  make any  dividend
  payments,  loans or distributions to its shareholders  in any one year in
  excess  of 50% of its cumulative net income since the first Drawdown Date
  (other  than  dividend  payments  from  time  to  time  on  RBC's  $1.625
  Convertible   Preferred  Stock,   and  on   RBC's  Class   A  (Cumulative
  Convertible)  Capital  Stock,  which  shall   not  be  subject  to   such
  limitation)  or to redeem any of RBC's $1.625 Convertible Preferred Stock
  shares.

      16.3   Consolidation, Merger, Etc.   Consolidate with  or merge with,
  or sell (whether  in one transaction or in a  series of transactions) all
  or substantially all of their assets to any Person or acquire (whether in
  one transaction in a series of transactions) all or  substantially all of
  the assets of any Person. 

      16.4  Modification of  Agreements.  Amend, modify or otherwise change
  any of the Loan Documents.

      16.5    Indebtedness.   Incur  any indebtedness  for borrowed  money,
  except:

         (a)  the Advances;

         (b)  the Guarantee Payments;

         (c)    accounts  payable   incurred  in  the  ordinary  course  of
  business;

         (d)  unsecured subordinated debt acceptable to the Lender  in its
  sole discretion; and

         (e)  in the  event that  Facility C is terminated  or expires,  a
  working  capital facility  similar in  amount,  terms and  conditions  to
  Facility C.

      16.6  Reportable Event.  Cause or allow to occur a Reportable Event.

      16.7   Change  of  Legal Structure.   Cause  or  allow to  occur  any
  material change in the present legal structure of the Borrowers.

      16.8   Change of  Place of Business.  Make  any change in the address
  of  their principal  place of  business or  their chief  executive office
  without prior written notice to the Lender. 

      16.9   Management  of Rigs.   Change  the flag,  class, ownership  or
  control of the Rigs without the prior written consent of the Trustee.

      16.10  Subsidiaries.  Create or acquire any new subsidiaries.

      16.11   Prepayment  of Debt.   Prepay any Indebtedness  to any Person
  other than the Lender.

      16.12  Sale of Rigs, Etc.  Sell,  transfer or assign any of the Rigs,
  any right  to receive the  revenue from  the Rigs or  any other  material
  asset. 

      16.13     Consolidated  Tangible  Net  Worth.    Permit  Consolidated
  Tangible Net Worth  to be less than USD 225,000,000 by  December 31, 1993
  and USD 250,000,000 thereafter.

      16.14  Current Ratio.  Permit the ratio of  Current Assets to Current
  Liabilities to be less than 1.5:1.

      16.15    Fixed  Charge  Coverage  Ratio.    Permit  the  Fixed Charge
  Coverage Ratio to be less than 2.0 to 1.

      16.16   Funded Debt.  Permit total  Funded Debt to  be greater at any
  time  than 50% of the sum of total Funded Debt plus Consolidated Tangible
  Net Worth.

      16.17    Standstill  Agreement.   Amend  the Standstill  Agreement or
  enter  into  any  new agreements  or understandings  with  Sonat Offshore
  Drilling, Inc. concerning the shares of Arcade Drilling.

  Section 17.  Events of Default.

      17.1  Events of  Default.  If one or  more of the following described
  events shall occur and is continuing ("Event of Default"):

         (a)  Any  Borrower shall fail to pay  any amount due  hereunder on
  the due  date and such  failure shall continue  for a period  of four (4)
  Business Days; or

         (b)   Any Borrower  shall fail to perform  or observe any covenant
  or other provision of this Agreement,  the Notes, the Letters of  Credit,
  the Pledges,  the  Mortgages,  the Assignments,  the Pledge  of  Earnings
  Accounts or the Pledge  of Arcade Drilling Shares and such  failure shall
  continue for 10 days after notice to the Borrowers of such failure; or

         (c)   Any  representation or  warranty made  in writing  by or  on
  behalf  of the  Borrowers  herein or  pursuant  hereto, or  otherwise  in
  connection  with  the transactions  contemplated  hereby  or any  report,
  certificate, financial  or other instrument furnished  in connection with
  this  Agreement, shall  prove  to have  been  false or  incorrect  in any
  material respect, or omits to state a material fact required to be stated
  therein in order to make the  statements contained therein, in the  light
  of the  circumstances under which they were made,  not misleading, on the
  date as of which made; or

         (d)   Any Borrower shall  cause or suffer to  exist a default,  as
  defined  in any evidence  of Indebtedness  of such Borrower  or under any
  indenture,  agreement or  other instrument  under which  the same  may be
  issued, and such default shall continue for thirty (30) days; other  than
  those disclosed to the Lender on or before the date of this Agreement and
  those which  are being contested in  good faith and as  to which adequate
  reserves  (determined in  accordance with  generally  accepted accounting
  principles) have been provided; or

         (e)  Any of the following events shall occur:

              (i)  Any Borrower commences a voluntary case under Title  11
  of the United States Code as now or hereafter in effect, or any successor
  thereto (the "Bankruptcy Code"); or 

             (ii)   an  involuntary case is  commenced against any Borrower
  under the Bankruptcy Code and relief is ordered against  such Borrower or
  the  petition is controverted  but is not dismissed  within 90 days after
  the commencement of the case; or

            (iii)   a  custodian  (as defined  in  the Bankruptcy  Code) is
  appointed  for,  or takes  charge of,  all  or substantially  all  of the
  property of any Borrower; or

             (iv)   any  Borrower commences any  other proceeding under any
  reorganization,  arrangement, readjustment  of  debt, relief  of debtors,
  dissolution, insolvency,  liquidation or similar law  of any jurisdiction
  relating to such Borrower (whether now or hereafter in  effect), or there
  is  commenced against  any  Borrower any  such  proceeding  which remains
  undismissed  for a  period  of 90  days  or any  Borrower is  adjudicated
  insolvent or  bankrupt; or any Borrower  fails to controvert  in a timely
  manner any such case under the Bankruptcy Code or any such proceeding, or
  any  order of relief or other order approving any such case or proceeding
  is entered; or

              (v)  any Borrower by any act or failure to act indicates its
  consent to, approval of or acquiescence in any such case or proceeding or
  in the appointment of any custodian of or  for it or any substantial part
  of  its property or suffers any such appointment to continue undischarged
  or unstayed for a period of 90 days; or

             (vi)  any Borrower  makes a general assignment for the benefit
  of creditors; or

            (vii)   any corporate action  is taken by  any Borrower for the
  purpose of effecting any of the foregoing.

          (f)  There shall have occurred  a material adverse change  in the
  financial or business condition of any of the Borrowers.

          (g)  Arcade Drilling  shall cause  or suffer  to exist  a payment
  event of default  under any indenture, agreement or other  instrument for
  the  borrowing of  money and  such default  shall  continue for  ten (10)
  Business Days.

  THEN, or at any time thereafter:

      The Lender  may terminate the Commitment  to make  Advances and issue
  Letters  of Credit and/or declare the entire outstanding unpaid principal
  amount  of the  Notes  and the  Charter  Payment Guaranty,  all  interest
  accrued  and unpaid thereon  and all other amounts  payable hereunder and
  thereunder  to be  forthwith due  and payable,  whereupon the  same shall
  become immediately due and payable, without presentment, demand,  protest
  or  further notice of any kind, all  of which are hereby expressly waived
  by the Borrowers and also  demand that the Borrowers cooperate with it in
  order to permit any outstanding Letters of Credit to be terminated, or if
  such  termination cannot  be accomplished,  the relevant  Borrowers shall
  deposit with the  Lender an amount equal to the  aggregate amounts of any
  outstanding  Letters of Credit which deposit  shall be held by the Lender
  as security  until the Letters of  Credit are terminated or  expire.  The
  Lender may immediately and without expiration of any additional period of
  grace, enforce  payment of all  obligations of the  Borrowers under  this
  Agreement and under the Notes.  In addition, the  Lender may exercise any 
  or all of such remedies as may be available to it under applicable law or
  granted pursuant to the Loan Documents. 

      Any declaration made pursuant to  this Section 17.1 is subject to the
  condition that, if at any  time after the outstanding principal of any of
  the Notes shall have  become due and payable, and  before any foreclosure
  action has  been taken by the Lender or the Trustee under any of the Loan
  Documents  to realize upon  the security provided by  such documents, all
  arrears  of interest upon the Notes and all other obligations owed to the
  Lender  (except that  principal of  the Notes  which by  such declaration
  shall have  become payable)  shall have been  duly paid, and  every other
  default  and Event of Default shall have been made good, waived or cured,
  then  and in  the case of  the first  such Event  of Default,  the Lender
  shall, and  in the case of  any succeeding Events of  Default, the Lender
  may,  by  written  notice  to  the  Borrowers,  rescind  and  annul  such
  declaration  and its  consequences; but no  such rescission  or annulment
  shall extend to  or affect any subsequent default or  Event of Default or
  impair any right consequent thereon.

  Section 18.  Evaluation and Additional Security.

      18.1   Evaluation.  Upon each  annual anniversary  of this Agreement,
  the  Borrowers  will  promptly   obtain  at  the  Borrowers'  expense  an
  evaluation of the  Rigs by a reputable independent offshore  drilling rig
  broker selected  by the Borrowers  but acceptable to  the Lender.   Apart
  from  this  annual evaluation,  the  Lender has  the right  to reasonably
  request  additional  evaluations of  the  Rigs  by  a reputable  offshore
  drilling  rig  broker selected  by  the Borrowers  but acceptable  to the
  Lender.   In the event that  any of the evaluations  establishes that the
  fair market value of the Rigs is less  than the aggregate of 150% of  the
  amount of the Credit Facility, the Borrowers shall at  the request of the
  Lender (but at the Borrowers' option) either:

          (a)  provide  additional  security acceptable  to  the  Lender to
  insure  that  the fair  market  value of  the  Rigs  and such  additional
  security is equal to at least 150% of  the amount of the Credit Facility;
  or

          (b)  (i) reduce the amounts then outstanding under the Notes by a
  prepayment in the  manner provided for in  Section 10.3     hereof except
  that a  prepayment under this Section  18.1 shall be applied  pro rata to
  all  amounts outstanding  under this  Agreement and  shall reduce  by the
  amount of  such prepayment  the ability  of the  Borrowers to draw  under
  Facility C or  (ii) obtain the agreement of  the beneficiaries of Letters
  of  Credit to their  termination in  an amount as is  necessary to insure
  that the fair market value of the Rigs  is at least 150% of the amount of
  the  Credit  Facility after  such reductions  and terminations  have been
  made.

      18.2  Expenses of Evaluations.   The Borrowers jointly  and severally
  agree to pay for the evaluations  referred to in Section 18.1 above up to
  and including a total amount of USD 25,000 per year. 

  Section 19.  Miscellaneous.

      19.1   Entire  Agreement.   This  Agreement  with its  Schedules  and
  Exhibits embodies  the  entire agreement  and understanding  between  the
  parties  hereto and  supersedes all  prior agreements  and understandings
  relating to the subject matter hereof.

      19.2   No Waiver.  No failure to exercise, and no delay in exercising
  any  right, power  or remedy  hereunder or  under any  document delivered
  pursuant hereto shall  impair any right, power or remedy which the Lender
  may have, nor shall any such delay be construed to be a waiver  of any of
  such  rights, powers or  remedies, or  an acquiescence  in any  breach or
  default  under this Agreement or  any document delivered pursuant hereto,
  nor shall any waiver of  any breach or default of the Borrowers hereunder
  be  deemed a waiver of any default or breach subsequently occurring.  The
  rights  and remedies herein specified are cumulative and not exclusive of
  any rights or remedies which the Lender would otherwise have.

      19.3   Survival.    All  representations, warranties  and  agreements
  herein contained on the part of the Borrowers shall survive the making of
  the  Advances and the issuance of the Letters of Credit hereunder and all
  such representations, warranties,  and agreements shall  be effective  as
  long as any amount arising pursuant to the terms of this Agreement or the
  Notes remains unpaid.

      19.4  Notices.  All  notices, requests, consents, demands,  and other
  communications  provided for  or permitted  hereunder shall  be effective
  when duly deposited in the mails, certified, return receipt requested, or
  delivered to Federal Express or similar courier company or transmitted by
  telefax,  addressed  to the  respective  party at  the address  set forth
  below.

          Borrowers:      Reading & Bates Corporation
                          901 Threadneedle, Suite 200
                          Houston, Texas  77079
                          Telefax No. (713) 496-0285
                          Telex No. 762305 
                          Attention:  Chief Executive Officer

          Lender:         Internationale Nederlanden Bank N.V.
                          De Amsterdamse Poort HH 01 03
                          1102 MG Amsterdam Zuidoost
                          The Netherlands
                          Telefax No. 011 31 20 5 672199
                          Telex No. 13646 ING B
                          Attention:  Annerie M. Vreugdenhil,
                                        Senior Account Manager
                                        Corporate Banking

  Any of the parties hereto may change their respective addresses by notice
  in writing given to the other parties to this Agreement.

      19.5    Termination.     This  Agreement  shall  terminate  when  all
  obligations  of   the  Borrowers  incurred  hereunder   shall  have  been
  discharged in full and all of the Commitment shall have terminated.

      19.6  Severability  of Provisions.   In case any  one or more  of the
  provisions  contained in  this Agreement  should  be invalid,  illegal or 
  unenforceable in  any respect, the validity,  legality and enforceability
  of  the remaining  provisions contained herein  shall not  in any  way be
  affected or impaired thereby.

      19.7  Successors and  Assigns.  This Agreement shall be  binding upon
  and  inure  to  the  benefit  of  the  Borrowers, the  Lender  and  their
  respective successors and assigns; provided, however, that the  Borrowers
  may not transfer their rights to borrow under this Agreement  without the
  prior written consent of the Lender.

      19.8  Assignment  and Participation.  (a)   Subject to paragraph  (b)
  below,  the  Lender  shall  have the  right  to  sell, assign,  transfer,
  negotiate or  grant assignments or participations  in all or part  of the
  obligations  of the  Borrowers outstanding  under this  Agreement  or the
  Notes evidencing such obligations to an affiliate of the Lender or to any
  first  class  international  bank  upon  prior  written  notice   to  the
  Borrowers.

          (b)  Any assignment  by the  Lender  of  the obligations  of  the
  Borrowers under  this Agreement and  the Notes to entities  which are not
  either affiliates of the Lender or first class international banks or any
  assignment by the Lender to  entities other than affiliates of the Lender
  which  leaves the Lender  holding less  than fifty  percent (50%)  of the
  obligations of the Borrowers under this Agreement and the  Notes shall be
  subject to  the prior written  approval of the  Borrowers, which  consent
  shall not be unreasonably withheld.  

          (c)  The Borrowers  hereby acknowledge and agree  that after  any
  assignment  such assignee shall for all  purposes, where relevant, hereof
  be  considered to be a Lender.  The Borrowers hereby authorize the Lender
  and each  assignee or  participant in  case of default  by the  Borrowers
  hereunder  to  proceed directly  by  right of  set-off, banker's  lien or
  otherwise against  any assets of the  Borrowers which may at  the time of
  such  default  be in  the  hands  of  such Lender  or  such  assignee  or
  participant to the full extent of its interest in the Obligations.

      19.9   Counterparts.  This Agreement may be executed in any number of
  counterparts, all of which taken together shall constitute one agreement,
  and either party  hereto may execute this  Agreement by signing  any such
  counterpart.

      19.10   Jurisdiction.   All actions  or proceedings  with respect  to
  this Agreement and the Notes may be instituted in the courts of the State
  of New York or the United States District Court for the Southern District
  of  New York.  By execution and delivery of this Agreement the Lender and
  the Borrowers irrevocably and unconditionally submit to the  jurisdiction
  of each  such court, and  irrevocably and unconditionally  waive (i)  any
  objection the  Borrowers or the Lender  may now or hereafter  have to the
  laying of venue in any of the courts, and (ii) any claims that any action
  or  proceeding brought  in any  of  such courts  has been  brought  in an
  inconvenient  forum.   Provided, however,  that nothing  in this  Section
  19.10  shall limit  or restrict the  right of  the Trustee  to bring suit
  against the Borrowers,  the Rigs or any earnings or  revenues of the Rigs
  anywhere  in the world to enforce  the security provided in the Mortgages
  and the Assignments.

      19.11  CHOICE OF LAW.   THIS AGREEMENT AND THE NOTES ISSUED HEREUNDER
  SHALL BE GOVERNED  BY AND CONSTRUED IN ACCORDANCE WITH  THE INTERNAL LAWS 
  OF THE STATE OF NEW  YORK, EXCEPT THAT WITH RESPECT TO THE  PROVISIONS OF
  THIS AGREEMENT AND  THE NOTES WHICH PROVIDE FOR OR  RELATE TO THE PAYMENT
  OF INTEREST, PROVISIONS OF APPLICABLE FEDERAL LAW WHICH PERMIT THE LENDER
  TO  CHARGE THE HIGHER OF THE RATE  PERMITTED BY SUCH APPLICABLE LAW OR BY
  THE LAWS  OF THE STATE  IN WHICH  THE LENDER IS  LOCATED SHALL  BE DEEMED
  GOVERNING AND CONTROLLING.

      19.12   Amendment  and  Waiver.   No provision  of  any of  the  Loan
  Documents  may  be  amended,  modified,  supplemented,  changed,  waived,
  discharged or terminated, unless all parties hereto consent in writing.

      19.13  Agent for Borrowers.

          (a)  The  Borrowers agree that  RBC shall be the  true and lawful
  agent and attorney-in-fact of the Borrowers  hereunder in connection with
  all  of  the rights,  powers  and  duties  of  the  Borrowers  hereunder,
  including,  without limitation, the giving or withholding and the receipt
  of consents and notices.

          (b)  The  Lender shall  be entitled  to and  agrees to  treat any
  notice given or action taken by RBC, acting as its capacity  as agent, as
  a notice from or an action by the Borrowers.

      19.14   No Oral Agreements.   THIS WRITTEN  LOAN AGREEMENT REPRESENTS
  THE  FINAL AGREEMENT BETWEEN  THE PARTIES AND MAY  NOT BE CONTRADICTED BY
  EVIDENCE OF PRIOR, CONTEMPORANEOUS  OR SUBSEQUENT ORAL AGREEMENTS OF  THE
  PARTIES.

      19.15  Headings,  Etc.  The table  of contents of this Agreement  and
  the  headings  of  various  sections  and  subsections  herein  are   for
  convenience of  reference only and  shall not modify,  define, expand  or
  limit any of  the terms or provisions hereof.   References to sections or
  subsections without reference to the document in which they are contained
  are references to this Agreement.

      IN WITNESS WHEREOF, the  parties hereto have caused this Agreement to
  be executed, as a deed,  as of the day and year first above written.

                                READING & BATES CORPORATION

                                By:  ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Chief Financial Officer

                                READING & BATES DRILLING CO.

                                By:  ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and Treasurer 

                                READING & BATES EXPLORATION CO.

                                By:  ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and Treasurer

                                READING AND BATES, INC.

                                By:  ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and Treasurer

                                READING AND BATES BORNEO DRILLING CO. LTD.

                                By:  _______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and Treasurer


  THE COMMON SEAL OF            READING & BATES (A) PTY. LTD.
  READING & BATES (A)
  PTY. LTD. was hereunto        By:  _______________________________
  affixed by authority of             Name:  T. W. Nagle
  the Board of Directors              Title: Director
  in the presence of:

  __________________________
  T. W. Nagle, Director

  __________________________
  W. K. Hillin, Secretary

                                INTERNATIONALE NEDERLANDEN BANK N.V.

                                By:  ______________________________
                                      Name:  David Jungman
                                      Title: Attorney-in-Fact 
<PAGE>
 

                                  Schedule 1

                                 List of Rigs

<TABLE>
<CAPTION>
       Name               Official No.        Flag         Owner
    <S>                   <C>                 <C>          <C>
    RON TAPPMEYER         ______              Australian   Reading  &  Bates
                                                           (A) Pty. Ltd.

    D.R. STEWART          626904               U.S.       Reading & Bates
                                                          Exploration Co.

    D.K. McINTOSH         591662               U.S.       Reading & Bates
                                                          Exploration Co.

    W.D. KENT             583169               U.S.       Reading & Bates
                                                          Exploration Co.

    CHARLEY GRAVES        6618-76-B         Panamanian    Reading and Bates
                                                          Borneo Drilling Co.,
                                                          Ltd.

    M.G. HULME JR.        651644               U.S.       Reading and Bates,
                                                          Inc.

    RANDOLPH YOST         601699               U.S.       Reading & Bates
                                                          Drilling Co.

    ROGER W. MOWELL       645360               U.S.       Reading & Bates
                                                          Drilling Co.

    J.T. ANGEL            651645               U.S.       Reading & Bates
                                                          Drilling Co.

    JIM CUNNINGHAM        651643               U.S.       Reading & Bates 
                                                          Drilling Co.

    JACK BATES            906283               U.S.       Reading & Bates
                                                          Drilling Co. 
</TABLE>

                                                                 EXHIBIT A-1 
                                                     TO AMENDED AND RESTATED
                                                   CREDIT FACILITY AGREEMENT


                          READING & BATES CORPORATION
                         READING & BATES DRILLING CO.
                        READING & BATES EXPLORATION CO.
                            READING AND BATES, INC.
                  READING AND BATES BORNEO DRILLING CO., LTD.
                         READING & BATES (A) PTY. LTD.


                AMENDED AND RESTATED FACILITY A PROMISSORY NOTE


  USD 15,000,000                                             April 27, 1995

  FOR VALUE RECEIVED, READING & BATES CORPORATION, READING & BATES DRILLING
  CO.,  READING & BATES  EXPLORATION CO., READING AND  BATES, INC., READING
  AND  BATES BORNEO DRILLING  CO., LTD.  and READING & BATES  (A) PTY. LTD.
  (the  "Facility A Borrowers") hereby jointly and severally promise to pay
  to INTERNATIONALE NEDERLANDEN  BANK, N.V. (the "Payee"), or order,  on or
  before  December 31, 1996  in installments, or  otherwise, as hereinafter
  provided,  FIFTEEN MILLION DOLLARS  OF THE UNITED STATES  OF AMERICA (USD
  15,000,000 and  to pay interest on  the unpaid portion of  said principal
  sum outstanding from time to time, as hereinafter provided.

                            PRINCIPAL AND INTEREST

  1.1   (a)   Interest on this Note shall be  payable at the times and  the
  rates  as  provided  in Section  9  of the  Amended  and  Restated Credit
  Facility Agreement (the  "Credit Agreement") dated as of April  27, 1995,
  among the Facility A Borrowers and the Payee.

        (b)   In case any payment of principal or interest is not paid when
  due,  additional interest at  the rate determined as  provided in Section
  9.3 of  the Credit Agreement  shall be payable  on all  overdue principal
  and, to the extent that the same may be lawful, on all overdue interest.

  1.2   Interest  shall be  calculated as  provided in  Section 9.1  of the
  Credit Agreement.

  1.3   The  principal of  this Note  shall be  payable in  installments as
  provided  in  Section 10.2(a)  of  the Credit  Agreement.   All principal
  payments shall  be made to the  Lender at its Amsterdam  Branch Office in
  Amsterdam South East, The Netherlands as provided  in Section 10.5 of the
  Credit Agreement.

  1.4   Notwithstanding  any provision of  this Note to the  contrary it is
  the  intent of the Facility  A Borrowers and the Payee  that, in no event
  shall the  aggregate amount  of consideration which  constitutes interest
  under any  applicable law which  is contracted for,  charged or  received
  hereunder  or under this  Note ("Interest") exceed the  maximum amount of
  nonusurious  interest allowed by law, and any excess shall be credited on
  this Note (or if all obligations under this Note shall have been  paid in
  full,  refunded to  the  Facility  A Borrowers).    For  purposes of  the
  foregoing,  the  maximum  amount  of interest  allowed  by  law shall  be
  calculated by determining the amount of interest that could be contracted
  for, charged  or received during the  term hereof at the  maximum rate of
  nonusurious interest allowed  from time to  time by applicable law  as is
  now or, to the extent allowed by law, as may  hereafter be in effect (the
  "maximum nonusurious interest  rate") and,  if at  any time  the rate  of
  Interest to accrue  would exceed the  maximum nonusurious interest  rate,
  the rate of  Interest to accrue under  this Note shall be  limited to the
  maximum nonusurious interest rate, but any subsequent reductions in LIBOR
  shall not reduce  the rate of Interest  to accrue on this Note  below the
  maximum  nonusurious  interest rate  until the  total amount  of Interest
  accrued and paid on this  Note equals the amount of Interest  which would
  have accrued  if  a rate  per annum  equal to  LIBOR plus  1-1/2% or  the
  interest  rate charged pursuant  to Section 9.3 of  the Credit Agreement,
  whichever is applicable, had at all times been in  effect.  It is further
  agreed that, without limitation of the foregoing, all calculations of the
  rate of Interest  that are  made for the  purpose of determining  whether
  such rate exceeds the maximum nonusurious interest rate applicable to the
  Payee,  shall  be made  to the  extent possible  permitted by  usury laws
  applicable  to  the Payee  (now  or  hereafter  enacted)  by  amortizing,
  prorating and spreading  all Interest in equal parts during the period of
  the full stated term of the obligations evidenced by this Note.

                                   SECURITY

  2.1   This Note  is one of the promissory notes issued under and pursuant
  to  the Credit  Agreement and  is secured  by,  among other  things, U.S.
  Preferred Mortgages dated March  29, 1991, as amended, on  nine U.S. flag
  drilling rigs, a Panamanian First Naval Mortgage dated April 27, 1995, on
  one Panamanian flag drilling rig and one Australian First Registered Ship
  Mortgage dated April 27, 1995 on one Australian flag drilling rig, all in
  favor  of  Bank   One,  Texas,  N.A.,  as  Trustee  for  the  Payee  (the
  "Mortgages").     Reference  is  hereby  made  to  the  Mortgages  for  a
  description of the  property thereby mortgaged, the nature and  extent of
  the security afforded thereby and the rights of the  Facility A Borrowers
  and the Payee with respect to such security as provided in the Mortgages.
  Payment of this  Note may be demanded  by the holder hereof prior  to the
  maturity  of this Note under certain circumstances and conditions, in the
  manner, and with  the effect,  provided in  the Mortgages  or the  Credit
  Agreement.  A true  and complete copy of the form of the Credit Agreement
  is attached to the Mortgages and made a part thereof.

  2.2   This Note evidences  the Advance made by the Payee under Facility A
  of the Credit Agreement.

                                 MISCELLANEOUS

  3.1   All  parties  hereto,  including  endorsers  hereof,  hereby  waive
  presentment for payment,  demand, protest and notice of protest  and non-
  payment hereof and  hereby consent that any  and all securities  or other
  property, if  any, held  by or  for the  holders hereof  at  any time  as
  security for this Note may be exchanged, released or surrendered and that
  the  time  of payment  of this  Note  may be  extended,  all in  the sole
  discretion of the holders hereof and without notice and without affecting
  in any manner the liability of the parties hereto.

  3.2   No course of dealing between the Facility A Borrowers and the Payee
  in exercising any rights hereunder shall operate as a waiver of any right
  of any holders  except to the extent expressly waived  in writing by such
  holder.

  3.3   Whenever any  payment to be  made hereunder shall  be due  on a day
  which is not  a Business  Day, such payments  shall be made  on the  next
  Business Day; provided,  however, that if  such next succeeding  Business
  Day  is in  a  new month,  then  the payment  required  under  the Credit
  Agreement  or this Note shall be made on the first Business Day preceding
  the original date on which payment was due.

  3.4   Any notice  to be given  pursuant to  this Note shall  be given  in
  accordance with Section 19.4 of the Credit Agreement.

  3.5   This Note shall be governed by and construed in accordance with the
  internal  laws of the State  of New York except that  with respect to the
  provisions of  this Note which  provide for or  relate to  the payment of
  interest, any provisions of applicable federal law which permit the Payee
  to charge the higher of  the rate permitted by such applicable law  or by
  the laws of  the state  in which  the Payee  is located  shall be  deemed
  governing and controlling.

  3.6   Capitalized  terms used in  this Note but not  defined herein shall
  have the meanings given to them in the Credit Agreement.

              IN WITNESS WHEREOF, the Facility A Borrowers have caused this
  Amended and Restated Facility  A Promissory Note to be  duly executed the
  day and year first above written.

                                READING & BATES CORPORATION


                                By:  ___________________________
                                      Name:   T. W. Nagle
                                      Title:  Vice President and
                                               Chief Financial Officer


                                READING & BATES DRILLING CO.


                                By:  ___________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and 
                                              Treasurer

                                READING & BATES EXPLORATION CO.


                                By:   ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and 
                                              Treasurer

                                READING AND BATES, INC.


                                By:   ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and 
                                              Treasurer

                                READING AND BATES BORNEO
                                  DRILLING CO., LTD.


                                By:   ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and 
                                              Treasurer

  THE COMMON SEAL OF            READING AND BATES (A) PTY. LTD.
  READING & BATES (A)
  PTY. LTD. was hereunto        By:   ______________________________
  affixed by authority of             Name:  T. W. Nagle
  the Board of Directors              Title: Director
  in the presence of:

  _________________________
  T. W. Nagle, Director

  ________________________
  W. K. Hillin, Secretary


<PAGE>
                                                                EXHIBIT A-2
                                                    TO AMENDED AND RESTATED
                                                  CREDIT FACILITY AGREEMENT 

                          READING & BATES CORPORATION
                         READING & BATES DRILLING CO.
                        READING & BATES EXPLORATION CO.
                            READING AND BATES, INC.
                  READING AND BATES BORNEO DRILLING CO., LTD.
                         READING & BATES (A) PTY. LTD.


                AMENDED AND RESTATED FACILITY C PROMISSORY NOTE


  USD 15,000,000.00                                           April 27, 1995

  FOR VALUE RECEIVED, READING & BATES CORPORATION, READING & BATES DRILLING
  CO.,  READING & BATES  EXPLORATION CO., READING AND  BATES, INC., READING
  AND  BATES BORNEO DRILLING  CO., LTD.  and READING & BATES  (A) PTY. LTD.
  (the  "Facility C Borrowers") hereby jointly and severally promise to pay
  to INTERNATIONALE NEDERLANDEN  BANK, N.V. (the "Payee"), or order,  on or
  before August 1, 1995 as hereinafter provided, FIFTEEN MILLION DOLLARS OF
  THE UNITED STATES OF AMERICA  (USD 15,000,000.00) and to pay interest  on
  the unpaid portion  of said principal sum outstanding  from time to time,
  as hereinafter provided.

                            PRINCIPAL AND INTEREST

  1.1   (a)   Interest  on this Note shall be  payable at the times and the
  rates  as provided  in  Section  9 of  the  Amended  and Restated  Credit
  Facility Agreement (the  "Credit Agreement") dated as of April  27, 1995,
  among the Facility C Borrowers and the Payee.

        (b)   In case any payment of principal or interest is not paid when
  due,  additional interest at  the rate determined as  provided in Section
  9.3 of the  Credit Agreement  shall be payable  on all overdue  principal
  and, to the extent that the same may be lawful, on all overdue interest.

  1.2   Interest  shall be  calculated as  provided in  Section 9.1  of the
  Credit Agreement.

  1.3   The principal of this Note  shall be payable in one  installment on
  the Facility  C Maturity Date.   All principal payments shall  be made to
  the  Lender at its  Amsterdam Branch Office in  Amsterdam South East, The
  Netherlands as provided in Section 10.5 of the Credit Agreement.

  1.4   The final maturity  date of this Note  may be extended  pursuant to
  Section 4.2 of the Credit Agreement.

  1.5   Notwithstanding  any provision of  this Note to the  contrary it is
  the intent of the  Facility C Borrowers and the  Payee that, in no  event
  shall the  aggregate amount  of consideration which  constitutes interest
  under any  applicable law which  is contracted for,  charged or  received
  hereunder  or under this  Note ("Interest") exceed the  maximum amount of
  nonusurious interest allowed by law, and any excess shall be credited  on
  this Note (or if all obligations under this Note shall have  been paid in
  full,  refunded to  the  Facility  C Borrowers).    For  purposes of  the
  foregoing,  the  maximum  amount  of interest  allowed  by  law shall  be
  calculated by determining the amount of interest that could be contracted
  for, charged  or received during the  term hereof at the  maximum rate of
  nonusurious interest  allowed from time  to time by applicable  law as is
  now or,  to the extent allowed by law, as may hereafter be in effect (the
  "maximum nonusurious  interest rate")  and, if  at any  time the  rate of
  Interest  to accrue would  exceed the maximum  nonusurious interest rate,
  the rate of Interest  to accrue under this Note  shall be limited to  the
  maximum  nonusurious interest rate, but any  subsequent reductions in the
  Prime Rate shall not reduce the  rate of Interest to accrue on  this Note
  below the  maximum nonusurious interest  rate until the  total amount  of
  Interest accrued and  paid on  this Note  equals the  amount of  Interest
  which would have accrued if a rate per annum equal to the Prime Rate plus
  1-1/4% or the interest rate charged pursuant to Section 9.3 of the Credit
  Agreement, whichever is applicable, had  at all times been in effect.  It
  is  further  agreed  that,  without  limitation  of  the  foregoing,  all
  calculations of  the rate of Interest  that are made  for the purpose  of
  determining whether  such rate  exceeds the maximum  nonusurious interest
  rate applicable  to  the Payee,  shall be  made  to the  extent  possible
  permitted  by  usury  laws  applicable to  the  Payee  (now or  hereafter
  enacted) by  amortizing, prorating  and spreading  all Interest  in equal
  parts  during the  period  of the  full  stated term  of  the obligations
  evidenced by this Note.

                                   SECURITY

  2.1   This Note is  one of the promissory notes issued under and pursuant
  to  the Credit  Agreement and  is secured  by,  among other  things, U.S.
  Preferred Mortgages dated March 29,  1991, as amended, on nine  U.S. flag
  drilling  rigs, a Panamanian First Naval Mortgage  dated April , 1995, on
  one Panamanian flag drilling rig and one Australian First Registered Ship
  Mortgage dated April 27, 1995 on one Australian flag drilling rig, all in
  favor  of  Bank  One,  Texas,   N.A.,  as  Trustee  for  the  Payee  (the
  "Mortgages").     Reference  is  hereby  made  to  the  Mortgages  for  a
  description of the  property thereby mortgaged, the nature and  extent of
  the security afforded thereby and the rights of the Facility  C Borrowers
  and the Payee with respect to such security as provided in the Mortgages.
  Payment of this  Note may be demanded  by the holder hereof  prior to the
  maturity  of this Note under certain circumstances and conditions, in the
  manner,  and with the  effect, provided  in the  Mortgages or  the Credit
  Agreement.  A true and complete copy of  the form of the Credit Agreement
  is attached to the Mortgages and made a part thereof.

  2.2   This Note  evidences the Advances made  or to be made  by the Payee
  under Facility C of the Credit Agreement. 

                                 MISCELLANEOUS

  3.1   All  parties  hereto,  including  endorsers  hereof,  hereby  waive
  presentment for payment,  demand, protest and notice of protest  and non-
  payment hereof and hereby  consent that any and  all securities or  other
  property,  if  any, held  by or  for the  holders hereof  at any  time as
  security for this Note may be exchanged, released or surrendered and that
  the  time of  payment of  this  Note may  be extended,  all  in the  sole
  discretion of the holders hereof and without notice and without affecting
  in any manner the liability of the parties hereto.

  3.2   No course of dealing between the Facility C Borrowers and the Payee
  in exercising any rights hereunder shall operate as a waiver of any right
  of any holders  except to the extent expressly waived  in writing by such
  holder.

  3.3   Whenever any  payment to be  made hereunder shall  be due  on a day
  which is  not a  Business Day, such  payments shall  be made on  the next
  Business Day; provided,  however, that if  such next succeeding  Business
  Day  is in  a  new month,  then  the payment  required  under  the Credit
  Agreement  or this Note shall be made on the first Business Day preceding
  the original date on which payment was due. 

  3.4   Any  notice to  be given pursuant  to this  Note shall  be given in
  accordance with Section 19.4 of the Credit Agreement.

  3.5   This Note shall be governed by and construed in accordance with the
  internal laws of  the State of New  York except that with  respect to the
  provisions  of this Note  which provide  for or relate to  the payment of
  interest, any provisions of applicable federal law which permit the Payee
  to charge the higher of  the rate permitted by such applicable  law or by
  the laws  of the  state in  which the Payee  is located  shall be  deemed
  governing and controlling.

  3.6   Capitalized  terms used in  this Note but not  defined herein shall
  have the meanings given to them in the Credit Agreement.

              IN WITNESS WHEREOF, the Facility C Borrowers have caused this
  Amended and Restated Facility  C Promissory Note to be  duly executed the
  day and year first above written.

                                READING & BATES CORPORATION

                                By:  ___________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Chief Financial Officer

                                READING & BATES DRILLING CO.

                                By:  ___________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Treasurer

                                READING & BATES EXPLORATION CO.

                                By:   ______________________________
                                       Name:  T. W. Nagle
                                       Title: Vice President and
                                              Treasurer
                                READING AND BATES, INC.

                                By:   ______________________________
                                       Name:  T. W. Nagle
                                       Title: Vice President and
                                              Treasurer
                                READING AND BATES BORNEO
                                  DRILLING CO., LTD.

                                By:   ______________________________
                                       Name:  T. W. Nagle
                                       Title: Vice President and
                                              Treasurer

  THE COMMON SEAL OF            READING & BATES (A) PTY. LTD.
  READING & BATES (A)
  PTY. LTD. was hereunto        By:   ______________________________
  affixed by authority of              Name:   T. W. Nagle
  the Board of Directors               Title:  Director
  in the presence of:

  __________________________
  T. W. Nagle, Director

  __________________________
  W. K. Hillin, Secretary


<PAGE>
                                                                  EXHIBIT A-3
                                                      TO AMENDED AND RESTATED
                                                    CREDIT FACILITY AGREEMENT 

                        READING & BATES CORPORATION
                        READING & BATES DRILLING CO.
                      READING & BATES EXPLORATION CO.
                          READING AND BATES, INC.
                READING AND BATES BORNEO DRILLING CO., LTD.
                       READING & BATES (A) PTY. LTD.

               AMENDED AND RESTATED FACILITY D PROMISSORY NOTE

USD 5,000,000.00                                               April 27, 1995

FOR VALUE RECEIVED,  READING & BATES  CORPORATION, READING  & BATES  DRILLING
CO.,  READING & BATES  EXPLORATION CO., READING AND  BATES, INC., READING AND
BATES  BORNEO DRILLING  CO., LTD.  and READING  &  BATES (A)  PTY. LTD.  (the
"Facility D  Borrowers")  hereby jointly  and  severally  promise to  pay  to
INTERNATIONALE NEDERLANDEN BANK,  N.V. (the "Payee"), or order, in the manner
provided below,  FIVE MILLION DOLLARS  OF THE UNITED  STATES OF AMERICA  (USD
5,000,000.00)  and to  pay interest on  the unpaid portion  of said principal
sum outstanding from time to time, as hereinafter provided.

                           PRINCIPAL AND INTEREST

1.1   (a)   Interest  on this  Note shall  be payable  at the  times and  the
rates as provided  in Section 9 of  the Amended and Restated  Credit Facility
Agreement (the  "Credit Agreement")  dated as  of April  27, 1995,  among the
Facility D Borrowers and the Payee.

      (b)   In case  any payment of  principal or interest  is not paid  when
due, additional interest  at the rate determined  as provided in Section  9.3
of  the Credit Agreement  shall be payable on  all overdue  principal and, to
the extent that the same may be lawful, on all overdue interest.

1.2   Interest shall  be calculated as provided in Section  9.1 of the Credit
Agreement.

1.3   The principal  of this  Note  outstanding from  time to  time shall  be
payable as provided  in Section 5.2 of  the Credit Agreement.   All principal
payments  shall be  made to  the Lender  at  its Amsterdam  Branch Office  in
Amsterdam South  East, The  Netherlands as  provided in Section  10.5 of  the
Credit Agreement.

1.4   Notwithstanding any provision of  this Note to  the contrary it is  the
intent of the Facility D Borrowers and the Payee that, in no event  shall the
aggregate  amount  of  consideration which  constitutes  interest  under  any
applicable law  which is  contracted for,  charged or  received hereunder  or
under  this  Note  ("Interest")  exceed the  maximum  amount  of  nonusurious
interest allowed  by law, and any excess  shall be credited on  this Note (or
if all obligations under this Note shall have been  paid in full, refunded to
the Facility  D  Borrowers).   For  purposes of  the  foregoing, the  maximum
amount of  interest allowed  by law  shall be calculated  by determining  the
amount of interest that could  be contracted for, charged or received  during
the  term hereof  at the  maximum rate  of nonusurious  interest allowed from
time to time by applicable  law as is now  or, to the extent allowed by  law,
as may hereafter  be in effect (the "maximum nonusurious interest rate") and,
if  at any  time the  rate of  Interest to  accrue  would exceed  the maximum
nonusurious interest  rate, the rate  of Interest to  accrue under this  Note
shall  be  limited   to  the  maximum  nonusurious  interest  rate,  but  any
subsequent reductions  in  the  Prime  Rate  shall not  reduce  the  rate  of
Interest to accrue on this  Note below the maximum nonusurious  interest rate
until  the total amount of Interest accrued  and paid on this Note equals the
amount of Interest  which would have accrued if a rate per annum equal to the
Prime Rate plus 1-1/4%  or the interest rate charged pursuant  to Section 9.3
of the Credit  Agreement, whichever is applicable,  had at all times  been in
effect.  It is further agreed that, without limitation of the foregoing,  all
calculations  of the  rate  of Interest  that  are made  for  the purpose  of
determining whether such  rate exceeds the maximum nonusurious  interest rate
applicable to the  Payee, shall be made  to the extent possible  permitted by
usury laws applicable to the Payee (now or hereafter  enacted) by amortizing,
prorating and spreading all  Interest in equal parts during the period of the
full stated term of the obligations evidenced by this Note.

                                  SECURITY

2.1   This Note is one  of the promissory notes issued under  and pursuant to
the Credit Agreement and  is secured by,  among other things, U.S.  Preferred
Mortgages dated March 29, 1991, as amended, on nine U.S. flag drilling  rigs,
a Panamanian First  Naval Mortgage dated  April 27, 1995,  on one  Panamanian
flag drilling rig  and one Australian  First Registered  Ship Mortgage  dated
April  27, 1995 on  one Australian flag  drilling rig,  all in favor  of Bank
One, Texas, N.A., as  Trustee for the Payee (the "Mortgages").   Reference is
hereby  made to  the  Mortgages for  a  description of  the property  thereby
mortgaged, the  nature and extent  of the security  afforded thereby  and the
rights  of the  Facility  D Borrowers  and  the Payee  with  respect to  such
security as  provided in the Mortgages.  Payment of this Note may be demanded
by  the  holder hereof  prior  to the  maturity  of this  Note  under certain
circumstances and  conditions, in the  manner, and with  the effect, provided
in the Mortgages  or the Credit Agreement.   A true and complete copy  of the
form of  the Credit Agreement is  attached to the  Mortgages and made  a part
thereof.

2.2   This  Note evidences  the  obligation of  the  Facility D  Borrowers to
reimburse  the  Payee for  any  Facility  D  Guarantee  Payment and  to  make
Security Deposits in connection with Facility  D.  This Note is payable  only
if such  a Facility D Guarantee Payment is  not reimbursed or such a Security
Deposit is not made; all as required by the terms of the Credit Agreement.

                                MISCELLANEOUS

3.1   All   parties  hereto,   including  endorsers   hereof,  hereby   waive
presentment  for payment,  demand,  protest and  notice  of protest  and non-
payment hereof  and  hereby consent  that any  and  all securities  or  other
property, if  any, held by or for the  holders hereof at any time as security
for this Note may be exchanged,  released or surrendered and that the time of
payment of  this Note  may be  extended, all  in the  sole discretion of  the
holders hereof  and without notice  and without affecting  in any manner  the
liability of the parties hereto.

3.2   No course of dealing  between the Facility D Borrowers and the Payee in
exercising any rights hereunder  shall operate  as a waiver  of any right  of
any holders except to the extent expressly waived in writing by such holder.

3.3   Whenever  any payment to be made hereunder  shall be due on a day which
is  not a Business Day, such payments shall be made on the next Business Day;
provided, however, that  if such  next succeeding Business  Day is  in a  new
month,  then the  payment required under  the Credit  Agreement or  this Note
shall be made on the first  Business Day preceding the original date on which
payment was due.

3.4   Any  notice to  be  given  pursuant to  this  Note  shall be  given  in
accordance with Section 19.4 of the Credit Agreement.

3.5   This Note  shall be governed  by and construed  in accordance with  the
internal laws  of the  State of  New  York except  that with  respect to  the
provisions  of  this Note  which  provide for  or  relate to  the  payment of
interest, any  provisions of applicable federal law which permit the Payee to
charge the higher  of the  rate permitted by  such applicable  law or by  the
laws  of the state  in which the  Payee is located  shall be deemed governing
and controlling.

3.6   Capitalized terms used in  this Note but not defined  herein shall have
the meanings given to them in the Credit Agreement.

            IN  WITNESS WHEREOF,  the Facility  D Borrowers  have caused this
Amended and Restated Facility  D Promissory Note to be duly  executed the day
and year first above written.

                              READING & BATES CORPORATION

                              By:  ___________________________
                                    Name:  T. W. Nagle
                                    Title: Vice President and
                                            Chief Financial Officer

                              READING & BATES DRILLING CO.

                              By:  ___________________________
                                    Name:  T. W. Nagle
                                    Title: Vice President and
                                            Treasurer

                              READING & BATES EXPLORATION CO.

                              By:   ______________________________
                                    Name:  T. W. Nagle
                                    Title: Vice President and
                                            Treasurer

                              READING AND BATES, INC.

                              By:   ______________________________
                                    Name:  T. W. Nagle
                                    Title: Vice President and
                                            Treasurer

                              READING AND BATES BORNEO
                                DRILLING CO., LTD.

                              By:   ______________________________
                                    Name:  T. W. Nagle
                                    Title: Vice President and
                                            Treasurer

THE COMMON SEAL OF            READING & BATES (A) PTY. LTD.
READING & BATES (A)
PTY. LTD. was hereunto        By:   ______________________________
affixed by authority of             Name:  T. W. Nagle
the Board of Directors              Title:  Director
in the presence of:

_________________________
T. W. Nagle, Director

_________________________
W. K. Hillin, Secretary


<PAGE>
                                                                 EXHIBIT A-4
                                                     TO AMENDED AND RESTATED 
                                                   CREDIT FACILITY AGREEMENT

                         READING & BATES CORPORATION
                         READING & BATES DRILLING CO.
                        READING & BATES EXPLORATION CO.
                            READING AND BATES, INC.
                  READING AND BATES BORNEO DRILLING CO., LTD.
                         READING & BATES (A) PTY. LTD.

                AMENDED AND RESTATED FACILITY E PROMISSORY NOTE

  USD 15,000,000.00                                           April 27, 1995

  FOR VALUE RECEIVED, READING & BATES CORPORATION, READING & BATES DRILLING
  CO.,  READING & BATES  EXPLORATION CO., READING AND  BATES, INC., READING
  AND  BATES BORNEO DRILLING  CO., LTD.  and READING & BATES  (A) PTY. LTD.
  (the  "Facility E Borrowers") hereby jointly and severally promise to pay
  to  INTERNATIONALE NEDERLANDEN BANK, N.V. (the "Payee"), or order, in the
  manner  provided below, FIFTEEN  MILLION DOLLARS OF THE  UNITED STATES OF
  AMERICA (USD  15,000,000.00) and to pay interest on the unpaid portion of
  said  principal  sum  outstanding  from  time  to  time,  as  hereinafter
  provided.

                            PRINCIPAL AND INTEREST

  1.1   (a)   Interest  on this Note shall be  payable at the times and the
  rates  as provided  in  Section  9 of  the  Amended  and Restated  Credit
  Facility Agreement (the  "Credit Agreement") dated as of April  27, 1995,
  among the Facility E Borrowers and the Payee.

        (b)   In case any payment of principal or interest is not paid when
  due,  additional interest at  the rate determined as  provided in Section
  9.3 of the  Credit Agreement  shall be payable  on all overdue  principal
  and, to the extent that the same may be lawful, on all overdue interest.

  1.2   Interest  shall be  calculated as  provided in  Section 9.1  of the
  Credit Agreement.

  1.3   The principal of this Note  outstanding from time to time  shall be
  payable  as  provided in  Section  6.2  of  the Credit  Agreement.    All
  principal  payments shall be  made to the Lender  at its Amsterdam Branch
  Office  in Amsterdam South  East, The Netherlands as  provided in Section
  10.5 of the Credit Agreement.

  1.4   Notwithstanding  any provision of  this Note to the  contrary it is
  the intent of  the Facility E Borrowers  and the Payee that, in  no event
  shall the  aggregate amount  of consideration which  constitutes interest
  under any  applicable law which  is contracted for,  charged or  received
  hereunder  or under this  Note ("Interest") exceed the  maximum amount of
  nonusurious interest allowed by law, and any  excess shall be credited on
  this  Note (or if all obligations under this Note shall have been paid in
  full, refunded  to  the  Facility E  Borrowers).   For  purposes  of  the
  foregoing,  the  maximum  amount  of interest  allowed  by  law shall  be
  calculated by determining the amount of interest that could be contracted
  for, charged  or received during the  term hereof at the  maximum rate of
  nonusurious  interest allowed from time  to time by applicable  law as is
  now or, to the extent allowed by law,  as may hereafter be in effect (the
  "maximum nonusurious  interest rate")  and, if  at any time  the rate  of
  Interest to accrue  would exceed the  maximum nonusurious interest  rate,
  the rate of Interest  to accrue under this  Note shall be limited  to the
  maximum nonusurious interest  rate, but any subsequent reductions  in the
  Prime Rate  shall not reduce the rate of Interest  to accrue on this Note
  below the  maximum nonusurious interest  rate until the  total amount  of
  Interest  accrued and  paid on  this Note  equals the amount  of Interest
  which would have accrued if a rate per annum equal to the Prime Rate plus
  1-1/4% or the interest rate charged pursuant to Section 9.3 of the Credit
  Agreement,  whichever is applicable, had at all times been in effect.  It
  is  further  agreed  that,  without  limitation  of  the  foregoing,  all
  calculations of  the rate of  Interest that are  made for  the purpose of
  determining whether  such rate  exceeds the maximum  nonusurious interest
  rate  applicable to  the  Payee, shall  be  made to  the  extent possible
  permitted  by  usury  laws  applicable to  the  Payee  (now or  hereafter
  enacted) by  amortizing, prorating  and spreading all  Interest in  equal
  parts  during  the period  of  the full  stated term  of  the obligations
  evidenced by this Note.

                                   SECURITY
  2.1   This Note is one of the promissory notes  issued under and pursuant
  to  the  Credit Agreement  and is  secured by,  among other  things, U.S.
  Preferred Mortgages dated March  29, 1991, as amended, on nine  U.S. flag
  drilling rigs, a Panamanian First Naval Mortgage dated April 27, 1995, on
  one Panamanian flag drilling rig and one Australian First Registered Ship
  Mortgage dated April 27, 1995 on one Australian flag drilling rig, all in
  favor  of  Bank  One,  Texas,  N.A.,  as  Trustee  for   the  Payee  (the
  "Mortgages").     Reference  is  hereby  made  to  the  Mortgages  for  a
  description of the  property thereby mortgaged, the nature and  extent of
  the security afforded thereby and  the rights of the Facility E Borrowers
  and the Payee with respect to such security as provided in the Mortgages.
  Payment  of this Note may  be demanded by the  holder hereof prior to the
  maturity  of this Note under certain circumstances and conditions, in the
  manner, and  with the  effect, provided  in the Mortgages  or the  Credit
  Agreement.  A true and complete  copy of the form of the Credit Agreement
  is attached to the Mortgages and made a part thereof.

  2.2   This Note evidences  the obligation of the Facility E  Borrowers to
  reimburse  the Payee  for any  Facility E Guarantee  Payment and  to make
  Security Deposits in  connection with Facility  E.  This Note  is payable
  only if such a Facility E Guarantee  Payment is not reimbursed or such  a
  Security Deposit  is not made; all as required by the terms of the Credit
  Agreement.

                                 MISCELLANEOUS

  3.1   All  parties  hereto,  including  endorsers  hereof,  hereby  waive
  presentment for payment,  demand, protest and notice of protest  and non-
  payment hereof  and hereby consent that  any and all securities  or other
  property, if  any, held  by or  for  the holders  hereof at  any time  as
  security for this Note may be exchanged, released or surrendered and that
  the time  of  payment of  this  Note may  be extended,  all  in the  sole
  discretion of the holders hereof and without notice and without affecting
  in any manner the liability of the parties hereto.

  3.2   No course of dealing between the Facility E Borrowers and the Payee
  in exercising any rights hereunder shall operate as a waiver of any right
  of any holders except to  the extent expressly waived in writing  by such
  holder.

  3.3   Whenever  any payment to  be made  hereunder shall be due  on a day
  which  is not a  Business Day, such  payments shall  be made on  the next
  Business Day;  provided, however, that  if such next  succeeding Business
  Day is  in  a new  month,  then  the payment  required under  the  Credit
  Agreement or this Note shall be made on the  first Business Day preceding
  the original date on which payment was due.

  3.4   Any  notice to  be given pursuant  to this  Note shall  be given in
  accordance with Section 19.4 of the Credit Agreement.

  3.5   This Note shall be governed by and construed in accordance with the
  internal laws of  the State of New  York except that with  respect to the
  provisions  of this Note  which provide  for or relate to  the payment of
  interest, any provisions of applicable federal law which permit the Payee
  to charge the higher of  the rate permitted by such applicable  law or by
  the laws  of the  state in  which the Payee  is located  shall be  deemed
  governing and controlling.

  3.6   Capitalized  terms used in  this Note but not  defined herein shall
  have the meanings given to them in the Credit Agreement.

              IN WITNESS WHEREOF, the Facility E Borrowers have caused this
  Amended and Restated Facility  E Promissory Note to be  duly executed the
  day and year first above written.

                                READING & BATES CORPORATION

                                By:  ___________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Chief Financial Officer

                                READING & BATES DRILLING CO.

                                By:  ___________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Treasurer

                                READING & BATES EXPLORATION CO.

                                By:   ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Treasurer

                                READING AND BATES, INC.

                                By:   ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Treasurer

                                READING AND BATES BORNEO
                                  DRILLING CO., LTD.

                                By:   ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Treasurer

  THE COMMON SEAL OF            READING & BATES (A) PTY. LTD.
  READING & BATES (A)
  PTY. LTD. was hereunto        By:   ______________________________
  affixed by authority of             Name:  T. W. Nagle
  the Board of Directors              Title: Director
  in the presence of

  _________________________
  T. W. Nagle, Director


  _________________________
  W. K. Hillin, Secretary

<PAGE>
                                                                EXHIBIT A-5
                                                    TO AMENDED AND RESTATED
                                                  CREDIT FACILITY AGREEMENT 

                   READING & BATES CORPORATION
                   READING & BATES DRILLING CO.
                 READING & BATES EXPLORATION CO.
                     READING AND BATES, INC.
           READING AND BATES BORNEO DRILLING CO., LTD.
                  READING & BATES (A) PTY. LTD.

           AMENDED AND RESTATED FACILITY F PROMISSORY NOTE

  USD 15,000,000.00                                          April 27, 1995


  FOR VALUE RECEIVED, READING & BATES CORPORATION, READING & BATES DRILLING
  CO.,  READING & BATES  EXPLORATION CO., READING AND  BATES, INC., READING
  AND BATES  BORNEO DRILLING CO., LTD.  and READING &  BATES (A) PTY.  LTD.
  (the  "Facility F Borrowers") hereby jointly and severally promise to pay
  to  INTERNATIONALE NEDERLANDEN BANK, N.V. (the "Payee"), or order, in the
  manner  provided below, FIFTEEN  MILLION DOLLARS OF THE  UNITED STATES OF
  AMERICA (USD 15,000,000.00) and to  pay interest on the unpaid portion of
  said  principal  sum  outstanding  from  time  to  time,  as  hereinafter
  provided.

                            PRINCIPAL AND INTEREST

  1.1   (a)   Interest on this  Note shall be payable at  the times and the
  rates as  provided  in Section  9  of  the Amended  and  Restated  Credit
  Facility Agreement (the  "Credit Agreement") dated as of April  27, 1995,
  among the Facility F Borrowers and the Payee.

        (b)   In case any payment of principal or interest is not paid when
  due,  additional interest at  the rate determined as  provided in Section
  9.3 of  the Credit Agreement  shall be  payable on all  overdue principal
  and, to the extent that the same may be lawful, on all overdue interest.

  1.2   Interest  shall be  calculated as  provided in  Section 9.1  of the
  Credit Agreement.

  1.3   The  principal of this Note outstanding from  time to time shall be
  payable  as  provided  in  Section 7.2  of  the  Credit  Agreement.   All
  principal payments shall  be made to  the Lender at its  Amsterdam Branch
  Office  in Amsterdam South  East, The Netherlands as  provided in Section
  10.5 of the Credit Agreement.

  1.4   Notwithstanding  any provision of  this Note to the  contrary it is
  the intent of the  Facility F Borrowers and  the Payee that, in  no event
  shall the  aggregate amount  of consideration which  constitutes interest
  under any  applicable law which  is contracted for,  charged or  received
  hereunder  or under this  Note ("Interest") exceed the  maximum amount of
  nonusurious interest allowed by law, and any excess shall  be credited on
  this Note (or if all obligations  under this Note shall have been paid in
  full,  refunded  to the  Facility  F  Borrowers).   For  purposes of  the
  foregoing,  the  maximum  amount  of interest  allowed  by  law shall  be
  calculated by determining the amount of interest that could be contracted
  for, charged  or received during the  term hereof at the  maximum rate of
  nonusurious interest allowed  from time to time  by applicable law as  is
  now or, to the extent allowed by law, as may hereafter be  in effect (the
  "maximum nonusurious  interest rate")  and, if  at any  time the rate  of
  Interest to  accrue would exceed  the maximum nonusurious  interest rate,
  the rate of Interest  to accrue under this Note  shall be limited to  the
  maximum nonusurious interest rate,  but any subsequent reductions  in the
  Prime  Rate shall not reduce the rate  of Interest to accrue on this Note
  below the  maximum nonusurious interest  rate until the  total amount  of
  Interest accrued  and paid  on this  Note equals  the amount  of Interest
  which would have accrued if a rate per annum equal to the Prime Rate plus
  1-1/4% or the interest rate charged pursuant to Section 9.3 of the Credit
  Agreement, whichever is applicable, had at all times been  in effect.  It
  is  further  agreed  that,  without  limitation  of  the  foregoing,  all
  calculations  of the rate  of Interest  that are made for  the purpose of
  determining whether  such rate  exceeds the maximum  nonusurious interest
  rate  applicable to  the Payee,  shall  be made  to  the extent  possible
  permitted  by  usury  laws  applicable to  the  Payee  (now or  hereafter
  enacted) by  amortizing, prorating  and spreading  all Interest in  equal
  parts  during the  period  of the  full  stated term  of the  obligations
  evidenced by this Note.

                                   SECURITY

  2.1   This  Note is one of the promissory notes issued under and pursuant
  to  the Credit  Agreement and  is  secured by,  among other  things, U.S.
  Preferred Mortgages dated  March 29, 1991, as amended,  on nine U.S. flag
  drilling rigs, a Panamanian First Naval Mortgage dated April 27, 1995, on
  one Panamanian flag drilling rig and one Australian First Registered Ship
  Mortgage dated April 27, 1995 on one Australian flag drilling rig, all in
  favor  of   Bank  One,  Texas,  N.A.,  as  Trustee  for  the  Payee  (the
  "Mortgages").     Reference  is  hereby  made  to  the  Mortgages  for  a
  description of the  property thereby mortgaged, the nature and  extent of
  the security afforded thereby and the rights of  the Facility F Borrowers
  and the Payee with respect to such security as provided in the Mortgages.
  Payment of  this Note may be  demanded by the holder hereof  prior to the
  maturity  of this Note under certain circumstances and conditions, in the
  manner, and  with the  effect, provided  in the  Mortgages or  the Credit
  Agreement.  A  true and complete copy of the form of the Credit Agreement
  is attached to the Mortgages and made a part thereof.

  2.2   This Note evidences  the obligation of the Facility F  Borrowers to
  reimburse the  Payee for  any Facility  F Guarantee  Payment and  to make
  Security Deposits in  connection with Facility F.   This Note  is payable
  only if such a  Facility F Guarantee Payment is not  reimbursed or such a
  Security Deposit is not made; all as required by the terms of  the Credit
  Agreement.

                                 MISCELLANEOUS

  3.1   All  parties  hereto,  including  endorsers  hereof,  hereby  waive
  presentment for payment,  demand, protest and notice of protest  and non-
  payment hereof and  hereby consent that  any and all securities  or other
  property,  if any,  held  by or  for the  holders hereof  at any  time as
  security for this Note may be exchanged, released or surrendered and that
  the time  of  payment of  this Note  may  be extended,  all in  the  sole
  discretion of the holders hereof and without notice and without affecting
  in any manner the liability of the parties hereto.

  3.2   No course of dealing between the Facility F Borrowers and the Payee
  in exercising any rights hereunder shall operate as a waiver of any right
  of any holders  except to the extent expressly waived  in writing by such
  holder.

  3.3   Whenever any  payment to be  made hereunder shall  be due  on a day
  which  is not a  Business Day,  such payments shall  be made  on the next
  Business Day; provided,  however, that if  such next succeeding  Business
  Day  is in  a  new month,  then  the payment  required  under  the Credit
  Agreement  or this Note shall be made on the first Business Day preceding
  the original date on which payment was due.

  3.4   Any  notice to  be given pursuant  to this  Note shall  be given in
  accordance with Section 19.4 of the Credit Agreement.

  3.5   This Note shall be governed by and construed in accordance with the
  internal laws of  the State of New  York except that with  respect to the
  provisions  of this Note  which provide  for or relate to  the payment of
  interest, any provisions of applicable federal law which permit the Payee
  to charge the higher of  the rate permitted by such applicable  law or by
  the laws  of the  state in  which the Payee  is located  shall be  deemed
  governing and controlling.

  3.6   Capitalized  terms used in  this Note but not  defined herein shall
  have the meanings given to them in the Credit Agreement.

              IN WITNESS WHEREOF, the Facility F Borrowers have caused this
  Amended and Restated Facility  F Promissory Note to be  duly executed the
  day and year first above written.

                                READING & BATES CORPORATION

                                By:  ___________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Chief Financial Officer

                                READING & BATES DRILLING CO.

                                By:  ___________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Treasurer

                                READING & BATES EXPLORATION CO.

                                By:   ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Treasurer

                                READING AND BATES, INC.

                                By:   ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Treasurer

                                READING AND BATES BORNEO
                                  DRILLING CO., LTD.

                                By:   ______________________________
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                              Treasurer

  THE COMMON SEAL OF            READING & BATES (A) PTY. LTD.
  READING & BATES (A)
  PTY. LTD. was hereunto        By:   ______________________________
  affixed by authority of             Name:  T. W. Nagle
  the Board of Directors              Title: Director
  in the presence of:

  _________________________
  T. W. Nagle, Director

  _________________________
  W. K. Hillin, Secretary 
<PAGE>
                                                                  EXHIBIT B
                                                    TO AMENDED AND RESTATED
                                                  CREDIT FACILITY AGREEMENT


                                                  __________________, 1995


  Internationale Nederlanden Bank N.V.
  De Amsterdamse Poort HH 0103
  1102 MG Amsterdam Zuidoost
  The Netherlands

  Attention:  Ms. Annerie Vreugdenhil     Test Key:_______________________
      
                        NOTICE OF DRAWDOWN

  Dear Ms. Vreugdenhil:

       Pursuant to Section 8.1(c)(ii) of the Amended and  Restated  Credit
  Facility Agreement dated as of April   , 1995  (the  "Credit Agreement")
  between  you  as Lender and  the  Borrowers  named  therein,  we  hereby
  irrevocably request that you pay:

            1.  USD_________________ to ___________________ at its account
                no. ________________ at _____________________.

            2.  (Same  specification  if  more  than one transfer is to be
                made).

        All  capitalized  terms  used  in  this  Notice of Drawdown and not
  defined  herein  shall  have  the  meanings  given to them in the  Credit
  Agreement.

                                Very truly yours,

                                READING & BATES CORPORATION,
                                as Agent for the Borrowers


                                By: __________________________
                                     Name:  
                                     Title:


                                                                   EXHIBIT C
                                                     TO AMENDED AND RESTATED
                                                   CREDIT FACILITY AGREEMENT


                                                                    , 1995


  Internationale Nederlanden Bank N.V.
  De Amsterdamse Poort HH 0103
  1102 MG Amsterdam Zuidoost
  The Netherlands

  Attention:  Ms. Annerie Vreugdenhil
                Test Key:  ____________

                         Request for Letter of Credit

  Dear Ms. Vreugdenhil:

        Pursuant to  Section 8.1(c)(i) of  the Amended and  Restated Credit
  Facility Agreement dated as of ________ __, 1995 (the "Credit Agreement")
  between  you  as Lender  and  the  Borrowers  named  therein,  we  hereby
  irrevocably request that a Standby  Letter of Credit in the amount of USD
  ____________  be  issued  in  favor  of _______________________  for  the
  account  of ___________________________  to  secure  the  obligations  of
  ____________________  under ______________________  with  such  letter of
  credit  having an  expiration date  of _________  and with  the following
  special provisions:   _____________________ in accordance  with the terms
  of the Credit Agreement.

        If the  issuance of the above  mentioned Letter of  Credit fails to
  take  place  or is  delayed  because  any  of  the  conditions  precedent
  specified in Section 12 of the Credit Agreement  have not been satisfied,
  the  Borrowers hereby jointly and severally agree to indemnify the Lender
  against  any loss incurred as a result  of the giving of this Request for
  Letter  of Credit including  without limitation, any  loss resulting from
  actions taken by the  Lender to fund the requested Letter of  Credit.  We
  further  agree that  a certificate  from  you as  the  Lender stating  in
  reasonable  detail the amount of, and basis for,  as to the amount of any
  such loss  incurred by you shall  be conclusive as  to such loss,  absent
  manifest error.

        All capitalized terms used in this Request for Letter of Credit and
  not defined  herein shall have the  meanings given to them  in the Credit
  Agreement.

                                      Very truly yours,

                                      READING & BATES CORPORATION,
                                      as Agent for the Borrowers


                                      By:                             
                                            Name:                      
                                            Title:                      
<PAGE>
                                                                 EXHIBIT D-1
                                                     TO AMENDED AND RESTATED
                                                   CREDIT FACILITY AGREEMENT


                               PLEDGE AGREEMENT

                                      AND

                               IRREVOCABLE PROXY


        PLEDGE  AGREEMENT  AND IRREVOCABLE  PROXY,  dated  April __,  1995,
  between READING & BATES CORPORATION, a corporation organized and existing
  under the  laws of the State  of Oklahoma (the "Pledgor"),  and BANK ONE,
  TEXAS, N.A., as Trustee, its successors and assigns, (the "Pledgee").

                             W I T N E S S E T H:

        WHEREAS, the  Pledgor owns of  record and beneficially  all of  the
  issued  and outstanding  shares of  Reading &  Bates Drilling  Co.   (the
  "Company")  (the Company  and  the Pledgor  are  hereinafter collectively
  referred to as the "Obligors").

        WHEREAS, the  Obligors have  entered into  an Amended  and Restated
  Credit  Facility  Agreement  dated  as of  April  __,  1995 (the  "Credit
  Agreement") with INTERNATIONALE NEDERLANDEN BANK N.V. (the "Bank"), which
  Credit Agreement  provides for advances  and the issuance  of letters  of
  credit by the  Bank to or for  the account of  the Obligors of up  to USD
  65,000,000  (the "Commitment") to be used for the purposes of refinancing
  certain  indebtedness of the  Obligors and providing  working capital and
  credit for operations; and 

        WHEREAS,  pursuant to  the  Trust Indenture  dated  March  29, 1991
  between the Trustee and the Obligors as amended by Amendment No. 1 to the
  Trust Indenture dated  as of February 25, 1993 and  as further amended by
  Assignment, Assumption and  Amendment No. 2 to Trust Indenture  dated the
  date  hereof, the Pledgee  has agreed to act  as trustee for  the Bank in
  connection  with the security  provided by the Obligors  for the advances
  made and letters of credit issued pursuant to the Credit Agreement; and

        WHEREAS,  it is a  condition to  the Bank entering  into the Credit
  Agreement  and making  the  Commitment that  the  Pledgor pledge  to  the
  Pledgee all of the issued and outstanding shares of the Company.

        NOW,  THEREFORE, in  order to  induce the  Bank  to enter  into the
  Credit  Agreement and  make the  Commitment and  in consideration  of the
  premises  and  other good  and  valuable  consideration  the receipt  and
  sufficiency  of which is hereby acknowledged, the parties hereby agree as
  follows:

        1.    Pledge  of Securities.    The Pledgor  has  delivered  to the
  Pledgee  in trust,  subject to  the  terms and  conditions  of the  Trust
  Indenture, certificates  representing all  of the issued  and outstanding
  shares   of  the  Company  as  described  in  Schedule  1  (the  "Pledged
  Securities") with duly endorsed blank stock powers attached.  The Pledgor
  does hereby pledge, mortgage,  assign, transfer, deposit, set over, grant
  a  security  interest in,  and  confirm the  Pledged Securities  unto the
  Pledgee, its successors and assigns, in trust, for  the Pledgee's and for
  its successors'  and assigns' own proper use and  benefit as security for
  the obligations referred to in Section 2 hereof.  If the Pledgor acquires
  any  additional shares of  any class or any  other securities convertible
  into such shares of the Company by purchase, stock dividend, distribution
  of capital or  otherwise, the Pledgor shall forthwith pledge  such shares
  or  other securities to the Pledgee under  this Pledge Agreement, and any
  such  additional shares  or  securities shall  be  included in  the  term
  "Pledged Securities".   Without the Pledgee's prior written  consent, the
  Pledgor  will not sell,  assign, transfer or otherwise  dispose of, grant
  any option with respect to, or pledge, mortgage or otherwise encumber any
  of the Pledged Securities or any interest therein.

        2.    Obligations  Secured.   This  Pledge  Agreement  is made  and
  delivered as security for the  obligation of the Obligors to pay  any and
  all  amounts  due  to  the  Bank  under  the  Credit  Agreement  and  any
  instrument,   agreement   or   document    referred   to   therein   (the
  "Obligations").   The  Pledgor  expressly consents  and agrees  that  the
  Pledgee  shall have  a security  interest in  the Pledged  Securities and
  proceeds as security for the Obligations.

        3.    Representations, Warranties and Covenants of the Pledgor.

              (a)   The Pledgor represents  and warrants  that the  Pledged
              Securities  constitute  all of  the  issued  and  outstanding
              shares  of the Company, are owned  beneficially and of record
              by  the  Pledgor  and such  shares  are  duly authorized  and
              issued, fully paid and nonassessable.  The Pledgor represents
              and  warrants that  it owns  of record  and  beneficially the
              Pledged Securities free and clear  of all liens, charges  and
              encumbrances.  The Pledgor covenants that it will warrant and
              defend  title to the Pledged Securities and the lien conveyed
              to the Pledgee by this Pledge Agreement against all claims of
              all persons and will maintain and preserve such lien.

              (b)   The Pledgor  further represents  and warrants that  (i)
              this  Pledge  Agreement  constitutes  its  legal,  valid  and
              binding obligation, enforceable against it in accordance with
              its  terms,  subject  to  laws  affecting  creditors'  rights
              generally and applicable  equitable principles, and (ii) upon
              delivery  of  the  Pledged  Securities  to the  Pledgee,  the
              Pledgee will have a perfected security interest in and pledge
              of the Pledged Securities having first priority.

        4.    Irrevocable Proxy.  

              (a)   The Pledgor  agrees to execute an  irrevocable proxy in
              the  form attached as  Exhibit A hereto. This  proxy shall be
              valid so long as any  portion of the Obligations are  due and
              payable.

              (b)   The  Pledgee  hereby  agrees  that  until an  Event  of
              Default (as defined in Section 7 hereof) shall have  occurred
              and  be continuing, the Pledgee  shall not exercise its proxy
              and the Pledgor shall be entitled to

                    (i)   vote any and all of the Pledged Securities;

                    (ii)  give  consents,  waivers  and   ratifications  in
                    respect thereof, provided, however, that  no vote shall
                    be  cast or  consent, waiver  or ratification  given or
                    taken,  which would  be  inconsistent with  any  of the
                    provisions  of the  Credit Agreement  or  any agreement
                    referred to therein; and

                    (iii)   receive  all  dividends  paid  on  the  Pledged
                    Securities.

              (c)   All  such rights  of the  Pledgor to  vote and  to give
              consent, waivers and  ratifications shall cease automatically
              in case an Event of Default shall occur and be continuing. 

        5.    Remedies.

              (a)   So  long as an Event of Default shall have occurred and
              be continuing the Pledgee may:

                    (i)   transfer  into its name  or into the  name of its
                    nominee any or all of the Pledged Securities;

                    (ii)  receive  and retain  all cash  dividends  paid in
                    respect of the Pledged Securities;

                    (iii)  vote any and  all of the  Pledged Securities and
                    give all consents, waivers and ratifications in respect
                    thereof; and

                    (iv)  otherwise  act  with   respect  to  the   Pledged
                    Securities as  though it were  the outright owner.   In
                    this  connection,   the  Pledgor   hereby   irrevocably
                    constitutes  and  appoints  the Pledgee  its  proxy and
                    attorney-in-fact, with  full power of  substitution, to
                    accomplish  any and  all acts  necessary to  permit the
                    Pledgee to transfer the Pledged Securities, receive and
                    retain dividends, vote  the Pledged Securities and give
                    all  consents and to  act as the outright  owner of the
                    Pledged Securities.

              (b)   So  long as an Event of Default shall have occurred and
              be continuing, the Pledgee  may sell, assign and  deliver the
              whole  or,  from time  to  time,  any  part  of  the  Pledged
              Securities  or any interest  therein or any  part thereof, at
              any private  sale  or  at  public auction,  with  or  without
              demand,  advertisement or notice of the time or place of sale
              or  adjournment or otherwise which may be for cash, on credit
              or for other property, for immediate or future  delivery, and
              for such price or prices  and on such terms as the Pledgee in
              its  sole  discretion  may  determine.   The  Pledgor  hereby
              assigns any and  all right  or equity  of redemption  whether
              before or after sale hereunder.  At any such sale the Pledgee
              may bid  for and purchase  for its  account the whole  of any
              such   right  of   redemption   or  the   Pledged  Securities
              themselves.   The proceeds of  any such sale  of the  Pledged
              Securities shall  be  applied  by the  Pledgee  to  meet  the
              Pledgor's  and the  Company's  obligations under  the  Credit
              Agreement.    Any  property  or  money remaining  after  such
              application  in respect  of the  Pledged Securities  shall be
              delivered to the Pledgor without any liability on the part of
              the  Pledgee as to any other interest of the Pledgor therein.
              Neither  failure  nor  delay  on  the  Pledgee's  part  shall
              preclude  any  other  or  further  exercise  thereof  or  the
              exercise of any right, remedy, power or privilege.

              (c)   So  long as an Event of Default shall have occurred and
              be  continuing and  upon  the Pledgee's  written  demand, the
              Pledgor

                    (i)   will  do any and all acts and things which may be
                    necessary  or  advisable  to  enable  the   Pledgee  to
                    consummate any  proposed sale  or other  disposition of
                    any of  the Pledged Securities pursuant  to this Pledge
                    Agreement; and

                    (ii)  will pay to the  Pledgee all reasonable costs and
                    expenses  of enforcing  the remedies  provided  in this
                    Section  5,  including  reasonable attorneys  fees, and
                    will reimburse the Pledgee with interest at the highest
                    interest rate allowed by law if the Pledgee shall incur
                    any  costs  and  expenses  in  enforcing  the  remedies
                    provided in this Section 5.

              (d)   Notwithstanding  anything  contained   herein  to   the
              contrary,  the  Pledgee   will  not  exercise  any   remedies
              hereunder  in a  manner  which would  violate  any applicable
              maritime  law or  regulation of the  United States,  it being
              understood  and agreed  that so  long as  any Obligor  owns a
              vessel  which is  documented  under the  laws  of  the United
              States, that the Pledgee will not sell, assign or deliver any
              part  of  the  Pledged  Securities  that  would  represent  a
              controlling interest in  that Obligor to any person  which is
              not a citizen of the United States as defined in Section 2 of
              the  Shipping  Act, 1916,  as  amended  without any  approval
              required by Section 9(c) of that Act.

        6.    The Pledgor's  Obligations Not Affected.   The obligations of
  the Pledgor under  this Pledge Agreement shall  remain in full force  and
  effect without regard to, and shall not be impaired or affected by:

              (a)   any amendment or modification or addition or supplement
              to  the  Credit Agreement  or  any  instrument, agreement  or
              document referred  to therein  or any assignment  of transfer
              thereof;

              (b)   any  exercise or  non-exercise  by the  Pledgee  of any
              right, remedy, power or privilege under or in respect of this
              Pledge  Agreement, the  Credit Agreement  or  any instrument,
              agreement  or document referred to herein  or therein, or any
              assignment or transfer  of any thereof, or any waiver  of any
              such right, remedy, power or privilege;

              (c)   any  waiver, consent,  extension, indulgence  or  other
              action or  inaction in respect of this  Pledge Agreement, the
              Credit  Agreement or  any instrument,  agreement  or document
              referred to herein or  therein, or any assignment or transfer
              of any thereof; or

              (d)   any     bankruptcy,     insolvency,     reorganization,
              arrangement, readjustment, composition,  liquidation, or  the
              like,  of any  of  the Company,  the  Pledgor, or  any  other
              person, firm or corporation; whether or not the Pledgor shall
              have notice or knowledge of any of the foregoing.

        7.    Event of Default.  Event of Default as used herein shall mean
  the occurrence and continuance of one or both of the following  described
  events:

              (a)   An Event  of Default shall occur  and continue pursuant
              to Section 17.1 of the Credit Agreement; or

              (b)   The  Pledgor  shall  fail  to  perform or  observe  any
              provision  of this  Pledge Agreement  and such  failure shall
              continue  for ten (10) Business Days after notice is given by
              the Pledgee to the Pledgor of such failure.

        8.    The Pledgor's Release of the Pledgee.  Under no circumstances
  shall  the  Pledgee  be  deemed  to  assume  any  responsibility  for  or
  obligation  or duty  with  respect to  any  part or  all  of  the Pledged
  Securities  of any nature or kind or any matter or proceeding arising out
  of or related  thereto, but the same shall be at  the Pledgor's sole risk
  at all times.  The  Pledgee shall not be  required to take any  action of
  any kind to collect, preserve  or protect its or the Pledgor's  rights in
  the  Pledged Securities, or  against other parties thereto.   The Pledgor
  hereby releases the Pledgee from any claims, causes of action and demands
  at any time arising out of or with respect to this Pledge  Agreement, the
  Obligations,  the use of the  Pledged Securities or any  actions taken or
  omitted to be taken by the Pledgee with respect  thereto, and the Pledgor
  hereby agrees to  hold the Pledgee harmless from and  with respect to any
  and all  such claims, causes  of action and  demands.  Nevertheless,  the
  Pledgee agrees to exercise  reasonable care in the  physical preservation
  of the Pledged Securities.

        9.    Termination.   Upon the  payment in full to  the Bank and the
  Pledgee of all of the Obligations, this Pledge Agreement shall terminate,
  and such of  the Pledged Securities which have  not theretofore been sold
  together  with  any  dividends previously  received which  have  not been
  otherwise applied pursuant to the terms of this Pledge Agreement shall be
  delivered to the Pledgor or as the Pledgor may direct in writing.

        10.   Notices.     All  notices,  requests,   demands,  directions,
  consents  or  waivers,   statements,  reports  and  other  communications
  hereunder  shall be made  in writing  by telex  or telefax,  confirmed by
  mail, to the parties at their addresses appearing below:

              The Pledgee -     Bank One, Texas, N.A.,
                                     as Trustee
                                910 Travis, 6th Floor
                                Houston, Texas  77002
                                Telefax No. (713) 751-6806
                                Attention:  Corporate Trust Department

                                with a copy to:

                                Internationale Nederlanden Bank N.V.
                                De Amsterdamse Poort
                                1102 MG Amsterdam Zuidoost
                                The Netherlands
                                Telefax No. 011-31-2-05-67-21-99
                                Attention:  Ms. Annerie Vreugdenhil


              The Pledgor  -    Reading & Bates Corporation
                                901 Threadneedle, Suite 200
                                Houston, Texas  77079
                                Telefax No.  (713) 496-2298
                                Attention:  President

        11.   General.  This  Pledge Agreement shall bind and inure  to the
  benefit of the  respective successors and assigns  of the parties.   This
  Pledge Agreement  and the rights  of the  parties and  of any  subsequent
  holder shall be construed in accordance with and governed by the internal
  laws of the State of New York, and may not be changed orally, but only by
  an instrument in writing signed by the person against whom enforcement of
  such change, modification or discharge is sought.

        12.   Severability.   If  any  word,  phrase, sentence,  paragraph,
  provision  or section of  this Pledge Agreement shall  be held invalid or
  unenforceable  for any  reason by  any  court of  competent jurisdiction,
  governmental authority, statute, or otherwise, such holding, declaration,
  pronouncement  or rendering shall  not adversely  affect any  other word,
  phrase,  sentence,  paragraph,  provision   or  section  of  this  Pledge 
  Agreement, which shall otherwise remain in  full force and effect and  be
  enforced in accordance with its terms.

        13.   Counterparts.  This  Pledge Agreement may be  executed in any
  number of counterparts, each of which for all purposes shall be deemed to
  be an original.

        IN  WITNESS WHEREOF, the parties  have caused this Pledge Agreement
  to be executed the day and year first above written.

                                      READING & BATES CORPORATION

                                      By:   ______________________________
                                            Name:  _______________________
                                            Title: _______________________


                                      BANK ONE, TEXAS, N.A.
                                            as Trustee

                                      By:   ______________________________
                                            Name:  _______________________
                                            Title: _______________________



                                  Schedule 1

                          READING & BATES CORPORATION
                               Registered Owner



  Company                  Certificate         Date of           Number of
                           Number              Issue             Shares of
                                                                 Stock

  Reading & Bates Drilling Co. 



                                                              EXHIBIT A


                               IRREVOCABLE PROXY

        The undersigned  hereby constitutes  and appoints Bank  One, Texas,
  N.A., as Trustee  (the "Pledgee") its attorney and  proxy to appear, vote
  and otherwise act, all in the name, place and stead of the undersigned in
  the same way that the undersigned might do and with the same powers, with
  respect to  all of the  shares of stock  in Reading &  Bates Drilling Co.
  which are owned or hereafter acquired by the undersigned,  at any and all
  meetings,  questions and resolutions that may  come before such meetings,
  including,  but not  limited to,  the election  of  directors, or  at any
  adjournment  or  adjournments thereof,  or  to consent  on behalf  of the
  undersigned in the absence of  a meeting to anything that might have been
  voted on at such a meeting.

        The power of attorney is  coupled with an interest, is given to the
  Pledgee pursuant to  the Pledge  Agreement dated April  __, 1995, and  is
  irrevocable.  It shall continue in effect so long  as the Obligations (as
  defined in the Pledge Agreement) remain unpaid.

        The Pledgee, the  attorney and proxy, is hereby given full power of
  substitution  and revocation and may act through such agents, nominees or
  substitute attorneys as it may from time to time appoint.

        The  powers  of  such  attorney and  proxy  shall  include (without
  limiting  their general powers hereunder), the power to receive and waive
  any notice of any meeting on behalf of the undersigned.

        And the  undersigned  hereby  ratifies and  confirms all  that  the
  Pledgee as the attorney and proxy or its substitutes duly appointed shall
  do in the name, place and stead of the undersigned pursuant hereto.


                                      READING & BATES CORPORATION


                                      By:   ______________________________
                                            Name:  _______________________
                                            Title: _______________________

<PAGE>
                                                     EXHIBIT D-2
                                         TO AMENDED AND RESTATED
                                       CREDIT FACILITY AGREEMENT 


                         PLEDGE AGREEMENT

                               AND

                        IRREVOCABLE PROXY


       PLEDGE  AGREEMENT AND IRREVOCABLE  PROXY, dated April__,
  1995,  between READING  & BATES  DRILLING CO.,  a corporation
  organized  and  existing  under  the laws  of  the  State  of
  Oklahoma  (the  "Pledgor"), and  Bank  One,  Texas, N.A.,  as
  Trustee, its successors and assigns, (the "Pledgee").

                       W I T N E S S E T H:

       WHEREAS, the Pledgor owns of record and beneficially all
  of the  issued and  outstanding shares  of Reading  and Bates
  Borneo Drilling  Co., Ltd.,  Reading & Bates  Exploration Co.
  and Reading and Bates, Inc.,  (collectively, the "Companies")
  (the Companies, the Pledgor  and Reading & Bates Corporation)
  are hereinafter collectively referred to as the "Obligors").

       WHEREAS, the  Obligors have entered into  an Amended and
  Restated Credit Facility Agreement dated as of April __, 1995
  (the "Credit Agreement") with INTERNATIONALE NEDERLANDEN BANK
  N.V.  (the  "Bank"),  which  Credit  Agreement  provides  for
  advances and the issuance of letters of credit by the Bank to
  or for the  account of the  Obligors of up to  USD 65,000,000
  (the "Commitment") to be used for the purposes of refinancing
  certain  of the  indebtedness of  the Obligors  and providing
  working capital and credit for operations; and 

       WHEREAS, pursuant to the Trust Indenture dated March 29,
  1991  between the  Trustee and  the Obligors,  as  amended by
  Amendment No. 1 to  Trust Indenture dated as of  February 25,
  1993  and as  further amended  by Assignment,  Assumption and
  Amendment No. 2 to Trust Indenture dated the date hereof, the
  Pledgee  has agreed  to  act  as  trustee  for  the  Bank  in
  connection with the security provided by the Obligors for the
  advances made and  letters of credit  issued pursuant to  the
  Credit Agreement; and

       WHEREAS, it is a condition to the Bank entering into the
  Credit Agreement  and making the Commitment  that the Pledgor
  pledge to  the  Pledgee all  of  the issued  and  outstanding
  shares of the Companies.

       NOW, THEREFORE,  in order  to induce  the Bank  to enter
  into  the  Credit Agreement  and make  the Commitment  and in
  consideration  of the  premises and  other good  and valuable
  consideration the receipt and  sufficiency of which is hereby
  acknowledged, the parties hereby agree as follows:

       1.   Pledge of Securities.  The Pledgor has delivered to
  the  Pledgee in trust, subject to the terms and conditions of
  the Trust  Indenture,  certificates representing  all of  the
  issued and  outstanding shares of the  Companies as described
  in Schedule  1 (the "Pledged Securities")  with duly endorsed
  blank stock powers attached.  The Pledgor does hereby pledge,
  mortgage,  assign,  transfer,  deposit,  set  over,  grant  a
  security interest in, and confirm the Pledged Securities unto
  the Pledgee,  its successors and  assigns, in trust,  for the
  Pledgee's and for its successors' and assigns' own proper use
  and benefit as  security for the  obligations referred to  in
  Section 2  hereof.   If the  Pledgor acquires  any additional
  shares of any class or any other  securities convertible into
  such  shares of  the Companies  by purchase,  stock dividend,
  distribution  of  capital  or  otherwise,  the  Pledgor shall
  forthwith  pledge  such shares  or  other  securities to  the
  Pledgee under this Pledge  Agreement, and any such additional
  shares  or securities shall be included  in the term "Pledged
  Securities".   Without the  Pledgee's prior written  consent,
  the  Pledgor will  not  sell, assign,  transfer or  otherwise
  dispose  of, grant  any option  with respect  to, or  pledge,
  mortgage or otherwise encumber  any of the Pledged Securities
  or any interest therein.

       2.   Obligations Secured.  This Pledge Agreement is made
  and delivered as security for the  obligation of the Obligors
  to pay any  and all amounts due to the  Bank under the Credit
  Agreement and any instrument,  agreement or document referred
  to  therein  (the  "Obligations").    The  Pledgor  expressly
  consents and  agrees that the  Pledgee shall have  a security
  interest in  the Pledged Securities and  proceeds as security
  for the Obligations.

       3.   Representations,  Warranties  and Covenants  of the
  Pledgor.

            (a)  The  Pledgor represents and  warrants that the
            Pledged Securities constitute all of the issued and
            outstanding  shares  of  the Companies,  are  owned
            beneficially and of record  by the Pledgor and such
            shares  are duly authorized  and issued, fully paid
            and  nonassessable.    The Pledgor  represents  and
            warrants that  it owns of  record and  beneficially
            the Pledged Securities free and clear of all liens,
            charges  and encumbrances.   The  Pledgor covenants
            that  it  will  warrant  and defend  title  to  the
            Pledged  Securities and  the lien  conveyed  to the
            Pledgee by this Pledge Agreement against all claims
            of all persons and  will maintain and preserve such
            lien.

            (b)  The  Pledgor further  represents and  warrants
            that  (i)  this  Pledge Agreement  constitutes  its
            legal,  valid  and binding  obligation, enforceable
            against it in accordance with its terms, subject to
            laws  affecting  creditors'  rights  generally  and
            applicable  equitable  principles,  and  (ii)  upon
            delivery  of the Pledged Securities to the Pledgee,
            the Pledgee will have a perfected security interest
            in  and  pledge  of the  Pledged  Securities having
            first priority.

       4.   Irrevocable Proxy.  

            (a)  The Pledgor  agrees to execute  an irrevocable
            proxy  in the  form attached  as Exhibit  A hereto.
            This proxy shall be valid so long as any portion of
            the Obligations are due and payable.

            (b)  The Pledgee hereby agrees that until an  Event
            of Default  (as defined in Section  7 hereof) shall
            have  occurred and be continuing, the Pledgee shall
            not  exercise its  proxy and  the Pledgor  shall be
            entitled to

                 (i)  vote   any   and  all   of   the  Pledged
                 Securities;

                 (ii) give consents,  waivers and ratifications
                 in respect thereof, provided, however, that no
                 vote  shall  be  cast or  consent,  waiver  or
                 ratification  given or  taken, which  would be
                 inconsistent with any of the provisions of the
                 Credit Agreement or any agreement  referred to
                 therein; and

                 (iii)  receive  all  dividends  paid   on  the
                 Pledged Securities.

            (c)  All such rights of the  Pledgor to vote and to
            give consent, waivers and ratifications shall cease
            automatically in  case  an Event  of Default  shall
            occur and be continuing.

       5.   Remedies.

            (a)  So  long as  an  Event of  Default shall  have
            occurred and be continuing the Pledgee may:

                 (i)  transfer into  its name or into  the name
                 of  its  nominee any  or  all  of the  Pledged
                 Securities;

                 (ii) receive  and  retain  all cash  dividends
                 paid in respect of the Pledged Securities;


                 (iii)  vote   any  and  all   of  the  Pledged
                 Securities  and give all consents, waivers and
                 ratifications in respect thereof; and

                 (iv) otherwise act with respect to the Pledged
                 Securities  as  though  it were  the  outright
                 owner.  In this connection, the Pledgor hereby
                 irrevocably   constitutes  and   appoints  the
                 Pledgee its proxy  and attorney-in-fact,  with
                 full power of substitution, to  accomplish any
                 and all acts  necessary to permit the  Pledgee
                 to  transfer  the Pledged  Securities, receive
                 and   retain   dividends,  vote   the  Pledged
                 Securities and give all consents and to act as
                 the outright owner of the Pledged Securities.

            (b)  So  long as  an  Event of  Default shall  have
            occurred and be  continuing, the Pledgee may  sell,
            assign and deliver the whole or, from time to time,
            any part of the  Pledged Securities or any interest
            therein or any part thereof, at any private sale or
            at   public  auction,   with  or   without  demand,
            advertisement  or notice  of the  time or  place of
            sale or  adjournment or otherwise which  may be for
            cash,  on  credit   or  for  other  property,   for
            immediate or future delivery, and for such price or
            prices and on such terms as the Pledgee in its sole
            discretion  may  determine.    The  Pledgor  hereby
            assigns any  and all right or  equity of redemption
            whether  before or  after sale  hereunder.   At any
            such  sale the Pledgee may bid for and purchase for
            its  account  the  whole   of  any  such  right  of
            redemption  or  the Pledged  Securities themselves.
            The  proceeds  of  any  such sale  of  the  Pledged
            Securities shall be applied  by the Pledgee to meet
            the Pledgor's and  the Companies' obligations under
            the  Credit  Agreement.    Any  property  or  money
            remaining after such application  in respect of the
            Pledged  Securities  shall   be  delivered  to  the
            Pledgor without  any liability  on the part  of the
            Pledgee  as to  any other  interest of  the Pledgor
            therein.    Neither   failure  nor  delay  on   the
            Pledgee's part  shall preclude any other or further
            exercise thereof  or  the exercise  of  any  right,
            remedy, power or privilege.

            (c)  So  long as  an  Event of  Default shall  have
            occurred and be  continuing and upon  the Pledgee's
            written demand, the Pledgor

                 (i)  will do any and all acts and things which
                 may be  necessary or  advisable to  enable the
                 Pledgee  to  consummate any  proposed  sale or
                 other  disposition  of   any  of  the  Pledged
                 Securitiespursuant tothis PledgeAgreement; and

                 (ii) will  pay to  the Pledgee  all reasonable
                 costs  and expenses of  enforcing the remedies
                 provided   in   this   Section  5,   including
                 reasonable attorneys fees, and  will reimburse
                 the  Pledgee  with  interest  at  the  highest
                 interest  rate allowed  by law if  the Pledgee
                 shall   incur  any   costs  and   expenses  in
                 enforcing  the  remedies   provided  in   this
                 Section 5.

            (d)  Notwithstanding  anything contained  herein to
            the  contrary, the  Pledgee will  not exercise  any
            remedies  hereunder in a manner which would violate
            any applicable maritime  law or  regulation of  the
            United States,  it being understood and agreed that
            so  long as  any  Obligor owns  a  vessel which  is
            documented  under the  laws of  the United  States,
            that the  Pledgee will not sell,  assign or deliver
            any  part  of  the Pledged  Securities  that  would
            represent a controlling interest in that Obligor to
            any person which  is not  a citizen  of the  United
            States as defined in Section 2 of the Shipping Act,
            1916,  as amended without  any approval required by
            Section 9(c) of that Act.

       6.   The  Pledgor's  Obligations  Not  Affected.     The
  obligations of the Pledgor  under this Pledge Agreement shall
  remain  in full force and effect without regard to, and shall
  not be impaired or affected by:

            (a)  any amendment  or modification or  addition or
            supplement  to   the   Credit  Agreement   or   any
            instrument,  agreement  or  document   referred  to
            therein or any assignment of transfer thereof;

            (b)  any exercise or non-exercise by the Pledgee of
            any right,  remedy, power or privilege  under or in
            respect  of  this  Pledge  Agreement,   the  Credit
            Agreement  or any instrument, agreement or document
            referred to herein or therein, or any assignment or
            transfer of any thereof, or any  waiver of any such
            right, remedy, power or privilege;

            (c)  any waiver, consent, extension,  indulgence or
            other action or inaction  in respect of this Pledge
            Agreement, the Credit Agreement or  any instrument,
            agreement  or  document   referred  to  herein   or
            therein,  or  any  assignment  or  transfer  of any
            thereof; or

            (d)  any  bankruptcy,  insolvency,  reorganization,
            arrangement,       readjustment,       composition,
            liquidation, or the like,  of any of the Companies,
            the  Pledgor,   or  any   other  person,   firm  or
            corporation; whether or not the Pledgor shall  have
            notice or knowledge of any of the foregoing.

       7.   Event of Default.  Event  of Default as used herein
  shall mean the occurrence  and continuance of one or  both of
  the following described events:

            (a)  An Event  of Default shall  occur and continue
            pursuant to  Section 17.1 of the  Credit Agreement;
            or

            (b)  The Pledgor shall fail  to perform or  observe
            any provision  of  this Pledge  Agreement and  such
            failure shall  continue for ten (10)  Business Days
            after notice is given by the Pledgee to the Pledgor
            of such failure.

       8.   The  Pledgor's Release  of the  Pledgee.   Under no
  circumstances  shall  the Pledgee  be  deemed  to assume  any
  responsibility for or obligation or duty with respect to  any
  part or all of  the Pledged Securities of any  nature or kind
  or  any  matter  or  proceeding arising  out  of  or  related
  thereto, but the same shall be  at the Pledgor's sole risk at
  all times.   The Pledgee shall  not be  required to take  any
  action of any kind to collect, preserve or protect its or the
  Pledgor's rights in the  Pledged Securities, or against other
  parties  thereto.   The Pledgor  hereby releases  the Pledgee
  from any claims,  causes of  action and demands  at any  time
  arising  out of or with respect to this Pledge Agreement, the
  Obligations, the use of the Pledged Securities or any actions
  taken  or omitted  to be  taken by  the Pledgee  with respect
  thereto, and the  Pledgor hereby agrees  to hold the  Pledgee
  harmless  from and with respect  to any and  all such claims,
  causes  of action  and  demands.   Nevertheless, the  Pledgee
  agrees   to  exercise   reasonable  care   in  the   physical
  preservation of the Pledged Securities.

       9.   Termination.  Upon the payment in full to the  Bank
  and  the  Pledgee  of all  of  the  Obligations,  this Pledge
  Agreement shall terminate, and such of the Pledged Securities
  which  have  not  theretofore  been sold  together  with  any
  dividends previously  received which have not  been otherwise
  applied  pursuant to the terms of this Pledge Agreement shall
  be delivered to the Pledgor or  as the Pledgor may direct  in
  writing.

       10.  Notices.      All   notices,   requests,   demands,
  directions,  consents  or  waivers, statements,  reports  and
  other communications  hereunder shall  be made in  writing by
  telex  or telefax, confirmed by mail, to the parties at their
  addresses appearing below: 

            The Pledgee -  Bank One, Texas, N.A.
                                as Trustee
                           910 Travis, 6th Floor
                           Houston, Texas  77002
                           Telefax No. (713) 751-6806
                           Attention: Corporate Trust Department

                           with a copy to:

                           Internationale Nederlanden Bank N.V.
                           De Amsterdamse Poort
                           1102 MG Amsterdam Zuidoost
                           The Netherlands
                           Telefax No. 011-31-2-05-67-21-99
                           Attention:  Ms. Annerie Vreugdenhil


            The Pledgor  - Reading & Bates Drilling Co.
                           901 Threadneedle, Suite 200
                           Houston, Texas  77079
                           Telefax No.  (713) 496-2298
                           Attention:  President

       11.  General.   This  Pledge  Agreement  shall bind  and
  inure to the benefit of the respective successors and assigns
  of the parties.  This Pledge  Agreement and the rights of the
  parties  and of any  subsequent holder shall  be construed in
  accordance with  and governed  by  the internal  laws of  the
  State of New York, and may not be changed orally, but only by
  an instrument  in writing signed  by the person  against whom
  enforcement  of such  change,  modification  or discharge  is
  sought.

       12.  Severability.    If  any  word,  phrase,  sentence,
  paragraph, provision  or  section of  this  Pledge  Agreement
  shall  be held invalid or unenforceable for any reason by any
  court  of  competent  jurisdiction,  governmental  authority,
  statute,   or   otherwise,    such   holding,    declaration,
  pronouncement or  rendering shall  not  adversely affect  any
  other word, phrase, sentence, paragraph, provision or section
  of  this Pledge  Agreement, which  shall otherwise  remain in
  full  force and effect and be enforced in accordance with its
  terms.

       13.  Counterparts.     This  Pledge   Agreement  may  be
  executed in any number of counterparts, each of which for all
  purposes shall be deemed to be an original. 

       IN WITNESS WHEREOF, the  parties have caused this Pledge
  Agreement  to  be  executed  the  day  and  year  first above
  written.


                                READING & BATES DRILLING CO.


                                By:                            
    
                                Name:  _______________________
                                Title: _______________________



                                BANK ONE, TEXAS, N. A.
                                     as Trustee

                                By:

                                Name:  _______________________
                                Title: _______________________

<PAGE>
 


                            Schedule 1

                   READING & BATES DRILLING CO.
                         Registered Owner




    Company                Certificate    Date of        Number of
                           Number         Issue          Shares of
                                                         Stock

  Reading and Bates Borneo
  Drilling Co., Ltd.

  Reading & Bates
  Exploration Co.

  Reading and Bates,
  Inc. <PAGE>
 


                                                    EXHIBIT A



                        IRREVOCABLE PROXY



       The  undersigned hereby  constitutes  and appoints  Bank
  One, Texas, N.A., as Trustee (the "Pledgee") its attorney and
  proxy to appear,  vote and  otherwise act, all  in the  name,
  place  and stead of the undersigned  in the same way that the
  undersigned might do  and with the same  powers, with respect
  to  all of  the shares of  stock in Reading  and Bates Borneo
  Drilling  Co., Ltd.,  Reading  & Bates  Exploration Co.,  and
  Reading and Bates, Inc. which are owned or hereafter acquired
  by the undersigned,  at any and  all meetings, questions  and
  resolutions that  may come  before such  meetings, including,
  but  not limited  to, the  election of  directors, or  at any
  adjournment or adjournments thereof,  or to consent on behalf
  of  the undersigned in the  absence of a  meeting to anything
  that might have been voted on at such a meeting.

       The power  of attorney is  coupled with an  interest, is
  given to the  Pledgee pursuant to the Pledge  Agreement dated
  April __, 1995,  and is  irrevocable.  It  shall continue  in
  effect so long as  the Obligations (as defined in  the Pledge
  Agreement) remain unpaid.

       The  Pledgee, the  attorney and  proxy, is  hereby given
  full power of substitution and revocation and may act through
  such agents, nominees or substitute attorneys  as it may from
  time to time appoint.

       The  powers of  such  attorney and  proxy shall  include
  (without limiting their general powers hereunder),  the power
  to  receive and waive any notice of  any meeting on behalf of
  the undersigned.

       And the  undersigned hereby  ratifies  and confirms  all
  that the Pledgee as the attorney and proxy or its substitutes
  duly appointed shall do in the  name, place and stead of  the
  undersigned pursuant hereto.


                                READING & BATES DRILLING CO.


                                By:                            
    
                                Name:  _______________________
                                Title: _______________________ 

<PAGE>
                                                    EXHIBIT D-3
                                        TO AMENDED AND RESTATED
                                      CREDIT FACILITY AGREEMENT 

                        PLEDGE AGREEMENT

                               AND

                        IRREVOCABLE PROXY

       PLEDGE  AGREEMENT AND IRREVOCABLE PROXY, dated April 27,
  1995, between  READING & BATES EXPLORATION  CO. a corporation
  organized and  existing  under  the  laws  of  the  State  of
  Oklahoma  (the  "Pledgor"), and  BANK  ONE,  TEXAS, N.A.,  as
  Trustee, its successors and assigns, (the "Pledgee").

                       W I T N E S S E T H:

       WHEREAS, the Pledgor owns of record and beneficially all
  of the issued and  outstanding shares of Reading &  Bates (A)
  Pty. Ltd. (the  "Company") (the Company  and the Pledgor  are
  hereinafter collectively referred to as the "Obligors").

       WHEREAS, the  Obligors have entered into  an Amended and
  Restated Credit Facility Agreement dated as of April 27, 1995
  (the "Credit Agreement") with INTERNATIONALE NEDERLANDEN BANK
  N.V.  (the  "Bank"),  which  Credit  Agreement  provides  for
  advances and the issuance of letters of credit by the Bank to
  or for  the account of the  Obligors of up  to USD 65,000,000
  (the "Commitment") to be used for the purposes of refinancing
  certain indebtedness of  the Obligors  and providing  working
  capital and credit for operations; and 

       WHEREAS, pursuant to the Trust Indenture dated March 29,
  1991  between the  Trustee  and the  Obligors  as amended  by
  Amendment No. 1 to  the Trust Indenture dated as  of February
  25, 1993 and as further amended by Assignment, Assumption and
  Amendment No. 2 to Trust Indenture dated the date hereof, the
  Pledgee  has agreed  to  act  as  trustee  for  the  Bank  in
  connection with the security provided by the Obligors for the
  advances  made and letters  of credit issued  pursuant to the
  Credit Agreement; and

       WHEREAS, it is a condition to the Bank entering into the
  Credit Agreement  and making the Commitment  that the Pledgor
  pledge  to the  Pledgee  all of  the  issued and  outstanding
  shares of the Company.

       NOW, THEREFORE,  in order  to induce  the Bank  to enter
  into the  Credit  Agreement and  make the  Commitment and  in
  consideration  of the  premises and  other good  and valuable
  consideration the receipt and  sufficiency of which is hereby
  acknowledged, the parties hereby agree as follows:

       1.   Pledge of Securities.  The Pledgor has delivered to
  the  Pledgee in trust, subject to the terms and conditions of
  the  Trust Indenture,  certificates representing  all of  the
  issued and outstanding shares of  the Company as described in
  Schedule  1  (the "Pledged  Securities")  with  duly endorsed
  blank stock powers attached.  The Pledgor does hereby pledge,
  mortgage,  assign,  transfer,  deposit,  set  over,  grant  a
  security interest in, and confirm the Pledged Securities unto
  the Pledgee, its  successors and assigns,  in trust, for  the
  Pledgee's and for its successors' and assigns' own proper use
  and  benefit as security  for the obligations  referred to in
  Section 2 hereof.   If  the Pledgor  acquires any  additional
  shares of any class or any other securities  convertible into
  such  shares  of the  Company  by  purchase, stock  dividend,
  distribution  of  capital  or  otherwise, the  Pledgor  shall
  forthwith  pledge  such shares  or  other  securities to  the
  Pledgee under this Pledge  Agreement, and any such additional
  shares or  securities shall be included in  the term "Pledged
  Securities".   Without the Pledgee's  prior written  consent,
  the  Pledgor will  not  sell, assign,  transfer or  otherwise
  dispose  of,  grant any  option with  respect to,  or pledge,
  mortgage or otherwise encumber  any of the Pledged Securities
  or any interest therein.

       2.   Obligations Secured.  This Pledge Agreement is made
  and delivered as security for the obligation  of the Obligors
  to pay any and all amounts due to the Bank under  the  Credit
  Agreement  and any instrument, agreement or document referred
  to  therein  (the  "Obligations").    The  Pledgor  expressly
  consents and agrees  that the Pledgee  shall have a  security
  interest in  the Pledged Securities and  proceeds as security
  for the Obligations.

       3.   Representations,  Warranties  and Covenants  of the
  Pledgor.

            (a)  The Pledgor  represents and warrants  that the
            Pledged Securities constitute all of the issued and
            outstanding   shares  of  the  Company,  are  owned
            beneficially and of record  by the Pledgor and such
            shares are  duly authorized and issued,  fully paid
            and  nonassessable.   The  Pledgor  represents  and
            warrants that it  owns of  record and  beneficially
            the Pledged Securities free and clear of all liens,
            charges  and encumbrances.   The  Pledgor covenants
            that  it  will  warrant  and defend  title  to  the
            Pledged  Securities and  the  lien conveyed  to the
            Pledgee by this Pledge Agreement against all claims
            of all persons and  will maintain and preserve such
            lien.

            (b)   The Pledgor  further represents  and warrants
            that  (i) this  Pledge  Agreement  constitutes  its
            legal,  valid  and binding  obligation, enforceable
            against it in accordance with its terms, subject to
            laws  affecting  creditors'  rights  generally  and
            applicable  equitable  principles,  and  (ii)  upon
            delivery of the Pledged Securities to  the Pledgee,
            the Pledgee will have a perfected security interest
            in  and pledge  of  the Pledged  Securities  having
            first priority.

       4.   Irrevocable Proxy.  

            (a)  The Pledgor agrees  to execute an  irrevocable
            proxy  in the  form attached  as Exhibit  A hereto.
            This proxy shall be valid so long as any portion of
            the Obligations are due and payable.

            (b)  The Pledgee hereby agrees that  until an Event
            of Default  (as defined in Section  7 hereof) shall
            have occurred and be continuing, the  Pledgee shall
            not  exercise its  proxy and  the Pledgor  shall be
            entitled to

                 (i)  vote   any   and  all   of   the  Pledged
                 Securities;

                 (ii) give consents,  waivers and ratifications
                 in respect thereof, provided, however, that no
                 vote  shall  be  cast  or  consent, waiver  or
                 ratification  given or  taken, which  would be
                 inconsistent with any of the provisions of the
                 Credit Agreement or any agreement  referred to
                 therein; and

                 (iii)  receive  all  dividends  paid   on  the
                 Pledged Securities.

            (c)  All such rights of the Pledgor to  vote and to
            give consent, waivers and ratifications shall cease
            automatically in  case an  Event  of Default  shall
            occur and be continuing.

       5.   Remedies.

            (a)  So  long as  an  Event of  Default shall  have
            occurred and be continuing the Pledgee may:

                 (i)  transfer into its  name or into the  name
                 ofits nomineeanyor allofthe PledgedSecurities;

                 (ii) receive  and  retain  all cash  dividends
                 paid in respect of the Pledged Securities;

                 (iii)  vote  any   and  all  of  the   Pledged
                 Securities and give all consents,  waivers and
                 ratifications in respect thereof; and

                 (iv) otherwise act with respect to the Pledged
                 Securities  as though  it  were  the  outright
                 owner.  In this connection, the Pledgor hereby
                 irrevocably   constitutes  and   appoints  the
                 Pledgee its proxy  and attorney-in-fact,  with
                 full power of  substitution, to accomplish any
                 and all  acts necessary to permit  the Pledgee
                 to  transfer  the Pledged  Securities, receive
                 and   retain   dividends,  vote   the  Pledged
                 Securities and give all consents and to act as
                 the outright owner of the Pledged Securities.

            (b)  So  long as  an  Event of  Default shall  have
            occurred and  be continuing, the Pledgee  may sell,
            assign and deliver the whole or, from time to time,
            any part of the  Pledged Securities or any interest
            therein or any part thereof, at any private sale or
            at   public  auction,   with  or   without  demand,
            advertisement  or notice  of the  time or  place of
            sale or  adjournment or otherwise which  may be for
            cash,  on   credit  or  for  other   property,  for
            immediate or future delivery, and for such price or
            prices and on such terms as the Pledgee in its sole
            discretion  may  determine.    The  Pledgor  hereby
            assigns any  and all right or  equity of redemption
            whether  before or  after sale  hereunder.   At any
            such sale  the Pledgee may bid for and purchase for
            its  account  the  whole   of  any  such  right  of
            redemption  or  the Pledged  Securities themselves.
            The  proceeds  of  any  such sale  of  the  Pledged
            Securities shall be applied  by the Pledgee to meet
            the Pledgor's and  the Company's obligations  under
            the  Credit  Agreement.    Any  property  or  money
            remaining  after such application in respect of the
            Pledged   Securities  shall  be  delivered  to  the
            Pledgor without  any liability  on the part  of the
            Pledgee  as to  any other  interest of  the Pledgor
            therein.     Neither  failure  nor  delay   on  the
            Pledgee's part shall preclude any other or  further
            exercise  thereof or  the  exercise  of any  right,
            remedy, power or privilege.

            (c)  So  long as  an  Event of  Default shall  have
            occurred  and be continuing  and upon the Pledgee's
            written demand, the Pledgor

                 (i)  will do any and all acts and things which
                 may  be necessary  or advisable to  enable the
                 Pledgee to  consummate  any proposed  sale  or
                 other   disposition  of  any  of  the  Pledged
                 Securities pursuant to this  Pledge Agreement;
                 and

                 (ii) will  pay to  the Pledgee  all reasonable
                 costs  and expenses of  enforcing the remedies
                 provided   in   this   Section  5,   including
                 reasonable attorneys fees, and  will reimburse
                 the  Pledgee  with  interest  at  the  highest
                 interest rate  allowed by  law if  the Pledgee
                 shall   incur  any   costs  and   expenses  in
                 enforcing  the  remedies   provided  in   this
                 Section 5.

            (d)  Notwithstanding  anything contained  herein to
            the contrary,  the  Pledgee will  not exercise  any
            remedies hereunder in a  manner which would violate
            any applicable  maritime law or  regulation of  the
            United States, it being  understood and agreed that
            so  long as  any  Obligor owns  a  vessel which  is
            documented  under  the laws  of the  United States,
            that the  Pledgee will not sell,  assign or deliver
            any  part  of  the  Pledged  Securities that  would
            represent a controlling interest in that Obligor to
            any  person which  is not a  citizen of  the United
            States as defined in Section 2 of the Shipping Act,
            1916, as amended  without any approval  required by
            Section 9(c) of that Act.

       6.   The  Pledgor's  Obligations  Not  Affected.     The
  obligations of the Pledgor  under this Pledge Agreement shall
  remain  in full force and effect without regard to, and shall
  not be impaired or affected by:

            (a)  any amendment  or modification or  addition or
            supplement  to   the   Credit  Agreement   or   any
            instrument,  agreement  or  document   referred  to
            therein or any assignment of transfer thereof;

            (b)  any exercise or non-exercise by the Pledgee of
            any right,  remedy, power or privilege  under or in
            respect  of  this  Pledge  Agreement,   the  Credit
            Agreement  or any instrument, agreement or document
            referred to herein or therein, or any assignment or
            transfer of any thereof, or  any waiver of any such
            right, remedy, power or privilege;

            (c)  any waiver, consent, extension,  indulgence or
            other action or inaction  in respect of this Pledge
            Agreement, the Credit Agreement or  any instrument,
            agreement  or  document   referred  to  herein   or
            therein,  or any  assignment  or  transfer  of  any
            thereof; or

            (d)  any  bankruptcy,  insolvency,  reorganization,
            arrangement,       readjustment,       composition,
            liquidation, or  the like,  of any of  the Company,
            the  Pledgor,  or   any  other   person,  firm   or
            corporation; whether  or not the Pledgor shall have
            notice or knowledge of any of the foregoing.

       7.   Event of Default.  Event of Default  as used herein
  shall mean the occurrence  and continuance of one or  both of
  the following described events:

            (a)  An Event of Default  shall occur and  continue
            pursuant  to Section 17.1  of the Credit Agreement;
            or

            (b)  The Pledgor  shall fail to perform  or observe
            any provision  of this  Pledge  Agreement and  such
            failure shall continue  for ten (10) Business  Days
            after notice is given by the Pledgee to the Pledgor
            of such failure.

       8.   The  Pledgor's Release  of the  Pledgee.   Under no
  circumstances  shall  the Pledgee  be  deemed  to assume  any
  responsibility for or  obligation or duty with respect to any
  part or all  of the Pledged Securities of any  nature or kind
  or  any  matter  or  proceeding  arising  out of  or  related
  thereto, but the same shall be at the Pledgor's sole  risk at
  all times.   The Pledgee  shall not be  required to take  any
  action of any kind to collect, preserve or protect its or the
  Pledgor's rights in the  Pledged Securities, or against other
  parties  thereto.   The Pledgor  hereby releases  the Pledgee
  from any claims,  causes of  action and demands  at any  time
  arising  out of or with respect to this Pledge Agreement, the
  Obligations, the use of the Pledged Securities or any actions
  taken  or omitted  to be  taken by  the Pledgee  with respect
  thereto, and the  Pledgor hereby agrees  to hold the  Pledgee
  harmless  from and with respect  to any and  all such claims,
  causes  of action  and  demands.   Nevertheless, the  Pledgee
  agrees   to   exercise  reasonable   care  in   the  physical
  preservation of the Pledged Securities.

       9.   Termination.  Upon  the payment in full to the Bank
  and  the  Pledgee of  all  of  the Obligations,  this  Pledge
  Agreement shall terminate, and such of the Pledged Securities
  which  have  not  theretofore  been sold  together  with  any
  dividends previously received  which have not been  otherwise
  applied pursuant to the terms  of this Pledge Agreement shall
  be delivered to the Pledgor  or as the Pledgor may direct  in
  writing.

       10.  Notices.      All   notices,   requests,   demands,
  directions,  consents  or  waivers, statements,  reports  and
  other communications  hereunder shall  be made in  writing by
  telex  or telefax, confirmed by mail, to the parties at their
  addresses appearing below: 

            The Pledgee -  Bank One, Texas, N.A.,
                                as Trustee
                           910 Travis, 6th Floor
                           Houston, Texas  77002
                           Telefax No. (713) 751-6806
                           Attention: Corporate Trust Department

                           with a copy to:

                           Internationale Nederlanden Bank N.V.
                           De Amsterdamse Poort
                           1102 MG Amsterdam Zuidoost
                           The Netherlands
                           Telefax No. 011-31-2-05-67-21-99
                           Attention:  Ms. Annerie Vreugdenhil

            The Pledgor  - Reading & Bates Exploration Co.
                           901 Threadneedle, Suite 200
                           Houston, Texas  77079
                           Telefax No.  (713) 496-2298
                           Attention:  President

       11.  General.   This  Pledge  Agreement  shall bind  and
  inure to the benefit of the respective successors and assigns
  of the parties.  This Pledge  Agreement and the rights of the
  parties  and of any  subsequent holder shall  be construed in
  accordance with  and governed  by  the internal  laws of  the
  Commonwealth of Australia, and may not be changed orally, but
  only by an instrument in writing signed by the person against
  whom enforcement of such change, modification or discharge is
  sought.

       12.  Severability.    If  any  word,  phrase,  sentence,
  paragraph, provision  or  section of  this  Pledge  Agreement
  shall  be held invalid or unenforceable for any reason by any
  court  of  competent  jurisdiction,  governmental  authority,
  statute,   or   otherwise,    such   holding,    declaration,
  pronouncement or  rendering shall  not  adversely affect  any
  other word, phrase, sentence, paragraph, provision or section
  of  this Pledge  Agreement, which  shall otherwise  remain in
  full  force and effect and be enforced in accordance with its
  terms.

       13.  Counterparts.     This  Pledge   Agreement  may  be
  executed in any number of counterparts, each of which for all
  purposes shall be deemed to be an original.

       14.  In accordance  with  the Corporations  Law  of  the
  State of  Western Australia,  Commonwealth of  Australia, the
  Assignor  agrees  that  the  maximum   prospective  liability
  secured  by this  Assignment  is seven  million four  hundred
  twenty  five thousand  Australian  dollars, provided  however
  that this Section 14 shall not limit the amount secured by or
  recoverable under this Assignment  or any other Loan Document
  referred to in the Restated Credit Agreement.

       IN WITNESS WHEREOF, the  parties have caused this Pledge
  Agreement  to  be  executed  the  day and  year  first  above
  written.

                                READING & BATES EXPLORATION CO.

                                By: 
                                Name:  _______________________
                                Title: _______________________

                                BANK ONE, TEXAS, N.A.
                                     as Trustee

                                By: 
                                Name:  _______________________
                                Title: _______________________

                            Schedule 1

                 READING & BATES EXPLORATION CO.
                         Registered Owner

    Company              Certificate    Date of        Number of
                            Number         Issue       Shares of
                                                         Stock

  Reading & Bates           3             6/22/94         1
  (A) Pty. Ltd.

  Reading & Bates           4*            6/22/94         1
  (A) Pty. Ltd.

       *Registered  in the name of Wayne K. Hillin in trust for
  Reading & Bates Exploration Co. 


                                                    EXHIBIT A



                        IRREVOCABLE PROXY



       The  undersigned hereby  constitutes  and appoints  Bank
  One, Texas, N.A., as Trustee (the "Pledgee") its attorney and
  proxy to appear,  vote and  otherwise act, all  in the  name,
  place  and stead of the undersigned  in the same way that the
  undersigned might do  and with the same  powers, with respect
  to all of  the shares of  stock in Reading  & Bates (A)  Pty.
  Ltd.   which  are   owned  or   hereafter  acquired   by  the
  undersigned,  at   any  and   all  meetings,   questions  and
  resolutions that  may come before  such meetings,  including,
  but  not limited  to, the  election of  directors, or  at any
  adjournment or adjournments thereof,  or to consent on behalf
  of  the undersigned in the  absence of a  meeting to anything
  that might have been voted on at such a meeting.

       The power of  attorney is coupled  with an interest,  is
  given  to the Pledgee pursuant to  the Pledge Agreement dated
  April __, 1995,  and is  irrevocable.  It  shall continue  in
  effect so long as  the Obligations (as defined in  the Pledge
  Agreement) remain unpaid.

       The  Pledgee, the  attorney and  proxy, is  hereby given
  full power of substitution and revocation and may act through
  such agents, nominees or substitute  attorneys as it may from
  time to time appoint.

       The  powers of  such  attorney and  proxy shall  include
  (without limiting  their general powers hereunder), the power
  to receive and waive any  notice of any meeting on  behalf of
  the undersigned.

       And  the undersigned  hereby ratifies  and confirms  all
  that the Pledgee as the attorney and proxy or its substitutes
  duly appointed shall do  in the name, place and  stead of the
  undersigned pursuant hereto.


                                READING & BATES EXPLORATION CO.


                                By:                            
    
                                Name:  _______________________
                                Title: _______________________ 


<PAGE>
                                                                EXHIBIT E-1
                                                    TO AMENDED AND RESTATED
                                                  CREDIT FACILITY AGREEMENT

                  Assignment, Assumption and Amendment No. 6
                       to First Preferred Fleet Mortgage

        Assignment,  Assumption and Amendment No. 6 dated April __, 1995 to
  the First Preferred Fleet Mortgage dated March 29, 1991 (the "Mortgage"),
  as  amended among READING  & BATES DRILLING CO.,  a corporation organized
  and existing under the laws  of the State of Oklahoma, with its principal
  place of business  at 901 Threadneedle, Suite 200, Houston,  Texas 77079,
  (the  "Shipowner"),  to  TEXAS  COMMERCE  BANK NATIONAL  ASSOCIATION,  as
  Trustee (Holder-Transferee  from the Receiver  of New First  City, Texas-
  Houston,  N.A., the successor  in interest to  First City, Texas-Houston,
  N.A.), a  national  banking  association,  with its  principal  place  of
  business at  600 Travis,  Houston, Texas  77002, (the  "Assignor"), which
  entity is  executing this document  solely for the  purposes of  and with
  respect to the  assignments and assumptions being made hereunder  and not
  with respect  to any amendment or  other matter hereunder,  and Bank One,
  Texas,  N.A.,  a  national  banking  association, as  Trustee,  with  its
  principal  place of  business at  910 Travis,  Houston, Texas  77002 (the
  "Trustee").  

        WHEREAS, the  Shipowner  is the  owner  of 100%  of the  U.S.  flag
  drilling  rigs  RANDOLPH  YOST, Official  No.  601699,  and  JACK  BATES,
  Official  No.  906283  (the  "Vessels"),  which Vessels  have  been  duly
  registered in  the name of the  Shipowner in accordance with  the laws of
  the United States of America; and 

        WHEREAS, the  Mortgage, as  amended, mortgaged one  hundred percent
  (100%)  of  the Vessels,  together  with all  of their  boilers, engines,
  machinery, masts, spars, sails,  rigging, boats, anchors, chains, tackle,
  apparel, furniture, fittings, equipment, drilling equipment, pumps, drill
  pipes, collars,  racking, housing, spare parts  and supporting inventory,
  vehicles  and living  quarters  (excluding equipment  aboard  the Vessels
  which is not owned by  the Shipowner) and all other appurtenances  to the
  Vessels  appertaining  or  belonging,  whether  now  owned  or  hereafter
  acquired,  whether on board  or not, and all  additions, improvements and
  replacements made in or to such Vessels; and

        WHEREAS, the  Mortgage was originally  received for record  at 2:01
  p.m. on  March 29,  1991, at  the U.S.  Coast Guard  Vessel Documentation
  Office at the Port of Houston,  Texas and was recorded in Book No. PM-243
  at Inst. No. 44; and

        WHEREAS,  the Mortgage was granted by the Shipowner to the Assignor
  for the purpose of securing the obligation of the Shipowner to pay to NMB
  Postbank Groep N.V.  (now known as Internationale  Nederlanden Bank N.V.,
  the  "Lender")  all amounts  due  and payable  under that  certain Credit
  Facility Agreement  dated as of March  27, 1991 among the  Shipowner, the
  other  Borrowers named therein  and the Lender  (the "Credit Agreement");
  and 

        WHEREAS,  a true  and  accurate copy  of  the Credit  Agreement  is
  attached to the Original Mortgage  as Exhibit A and forms a part thereof;
  and

        WHEREAS,  pursuant to Amendment No. 1  to Credit Facility Agreement
  dated as of May 24, 1991 among the Shipowner, the other Borrowers and the
  Lender  ("Amendment No. 1"),  certain terms of the  Credit Agreement were
  amended; and

        WHEREAS,  the Shipowner  and the Assignor  amended the  Mortgage in
  order  to reflect the changes  made to the Credit  Agreement by Amendment
  No. 1; and

        WHEREAS, Amendment  No. 1 to  the Mortgage dated  May 31, 1991  was
  received for record at 12:30 p.m. on June 5, 1991 at the U.S. Coast Guard
  Vessel  Documentation  Office  at  the Port  of  Houston,  Texas and  was
  recorded in Book No. PM-247 at Inst. No. 228; and

        WHEREAS, pursuant  to Amendment No. 2 to  Credit Facility Agreement
  dated as  of June 28, 1991  among the Shipowner, the  other Borrowers and
  the Lender  ("Amendment No. 2"),  certain terms of  the Credit  Agreement
  were amended; and 

        WHEREAS, the  Shipowner and  the Assignor amended  the Mortgage  in
  order to reflect the  changes made to  the Credit Agreement by  Amendment
  No. 2; and 

        WHEREAS, Amendment  No. 2 to the  Mortgage dated June 28,  1991 was
  received  for record  at 1:10 p.m.  on August 7,  1991 at  the U.S. Coast
  Guard Vessel Documentation Office, Port of Houston, Texas and recorded at
  Book No. PM-250, I-6; and

        WHEREAS, pursuant to  Amendment No. 3 to Credit  Facility Agreement
  dated August  30, 1991, among the Shipowner, the  other Borrowers and the
  Lender  ("Amendment No. 3"),  certain terms of the  Credit Agreement were
  amended; and

        WHEREAS,  the Shipowner  and the  Assignor amended the  Mortgage to
  reflect the changes made to the Credit Agreement by Amendment No. 3; and

        WHEREAS, Amendment  No. 3 to the Mortgage dated August 30, 1991 was
  received for record  at 9:27 a.m. on September 5, 1991  at the U.S. Coast
  Guard  Vessel  Documentation  Office, Port  of  Houston,  Texas  and  was
  recorded at Book PM-251, I-97; and

        WHEREAS, pursuant  to Amendment No. 4 to  Credit Facility Agreement
  dated as  of June 30, 1992  among the Shipowner, the  other Borrowers and
  the Lender  ("Amendment No. 4"),  certain terms of  the Credit  Agreement
  were amended; and

        WHEREAS, Shipowner and the Assignor amended the Mortgage to reflect
  the changes made to the Credit Agreement by Amendment No. 4; and 

        WHEREAS, Amendment  No. 4 to the Mortgage  dated September 11, 1992
  was received for record at  10:19 a.m. on September 14, 1992  at the U.S.
  Coast Guard Vessel  Documentation Office, Port of Houston, Texas  and was
  recorded at Book PM-263, Instrument 101; and

        WHEREAS,  pursuant  to  the  terms of  Amendment  No.  5 to  Credit
  Facility Agreement dated  as of February 25,  1993, among the  Shipowner,
  the other  Borrowers and the Lender ("Amendment No. 5"), certain terms of
  the Credit Agreement were amended; and

        WHEREAS,  the Shipowner  and the  Assignor amended the  Mortgage in
  order to reflect  the changes made to  the Credit Agreement by  Amendment
  No. 5; and

        WHEREAS,  Amendment No. 5  to the Mortgage dated  February 25, 1993
  was received  for record  on March  1, 1993 at  1:19 p.m.  in the  United
  States  Coast Guard Vessel  Documentation Office for the  Port of Houston
  and was recorded at Book PM-269, Instrument 94; and

        WHEREAS, pursuant to  the terms of the Amended and  Restated Credit
  Facility Agreement dated the date hereof (the "Restated Agreement") among
  the  Shipowner, the Borrowers  listed therein and the  Lender, the Credit
  Agreement was restated and certain of its provisions were amended;  and

        WHEREAS,  the Lender desires that the  Trustee act on its behalf in
  respect of, among other things, the security granted by the Mortgage; and


        WHEREAS,   the  Assignor  has  agreed  to  assign  its  rights  and
  obligations under the Mortgage to the Trustee, and the Trustee has agreed
  to assume such rights and obligations; and 

        WHEREAS, the Shipowner  and the Trustee wish to amend  the Mortgage
  to  reflect  the changes  to the  Credit Agreement  made by  the Restated
  Agreement.

        NOW THEREFORE, THIS AMENDMENT NO. 6 WITNESSETH:

                           Assignment and Assumption

        The  Assignor agrees  to assign  and the  Trustee hereby  agrees to
  assume the Mortgage, and the Shipowner hereby consents to such assignment
  and assumption as follows:

        1.    The  Assignor hereby  sells,  transfers,  assigns and  grants
  absolutely and  not  by way  of security,  all of  its  right, title  and
  interest   and   responsibilities,   powers,  duties,   liabilities   and
  obligations in, to and under the Mortgage to the Trustee.

              In connection with this Assignment, Assumption and Amendment,
  the Shipowner represents and warrants to the Trustee that the Mortgage is
  in full force and effect and there are no events which would constitute a
  default by the Shipowner under  the terms of the Mortgage or events which 
  would, with the passage of time or the giving  of notice, constitute such
  an Event of Default.

        2.    The Trustee  hereby acknowledges receipt of  the Mortgage and
  expressly agrees to accept  the position of trustee  under, and be  bound
  by, all of the terms and provisions of the Mortgage, as amended hereby.

        3.    The Trustee hereby  agrees to perform and comply with  all of
  the terms and conditions of,  and hereby assumes all of the  right, title
  and   interest,   responsibilities,   powers,  duties,   liabilities  and
  obligations of the Assignor under, the  Mortgage from and after the  date
  hereof.

        4.    The  Assignor  is hereby  released  and  discharged from  its
  responsibilities, powers,  duties, liabilities and  obligations under the
  Mortgage.

        5.    The Assignor agrees  that at any time and from  time to time,
  upon the written request of  the Trustee, the Assignor will promptly  and
  duly  execute  and  deliver  any and  all  such  further instruments  and
  documents  as  may  be  reasonably  necessary  to  effect  the  transfers
  expressly  made  by  Assignor   under  this  Assignment,  Assumption  and
  Amendment,  including,  without   limitation,  assignments  of  financing
  statements, and assignments and releases of vessel mortgages.

        6.    The  Trustee shall be for all purposes under the Mortgage and
  the  other  Loan Documents  the  Trustee  without  any  further  acts  or
  instruments on the part of any Person.

                          Amendment No. 6 to Mortgage

        The Shipowner and the Trustee hereby agree to amend the Mortgage as
  follows:

        A.    Exhibit  A  to  the  Mortgage  is hereby  replaced  with  the
  Restated Agreement in the form of Exhibit A attached hereto.

        B.    Hereinafter each  reference in  the Mortgage, as  amended, to
  the Credit Agreement shall refer to the Restated Agreement.

        C.    Hereinafter each  reference in  the Mortgage, as  amended, to
  the  Trustee  shall mean  Bank  One,  Texas,  N.A.,  a  national  banking
  association  with its principal place of business at 910 Travis, Houston,
  Texas  77002.

        D.    For  purposes  of  recording this  Amendment No.  6  to First
  Preferred Fleet Mortgage pursuant to 46 U.S.C. 31321, it amends mortgage
  covenants.  The total amount of the Mortgage is reduced to USD 65,000,000
  plus interest and performance of mortgage covenants.

        E.    Except  as  specifically amended  herein, the  Mortgage shall
  remain in full force and effect. 

        All capitalized terms used herein but not defined herein shall have
  the meanings given to them in the Mortgage.

        THIS ASSIGNMENT, ASSUMPTION AND AMENDMENT  NO. 6 TO FIRST PREFERRED
  FLEET  MORTGAGE SHALL BE  GOVERNED BY, AND CONSTRUED  IN ACCORDANCE WITH,
  THE LAWS  OF THE UNITED STATES OF AMERICA  AND, TO THE EXTENT THEY DO NOT
  APPLY, TO THE INTERNAL LAWS OF THE STATE OF NEW YORK.

        IN  WITNESS HEREOF,  the parties  hereto  have duly  executed  this
  Amendment No.  6 to  First Preferred  Fleet Mortgage  on  the date  first
  written above.

                                READING & BATES DRILLING CO.

                                By:   ______________________________
                                      Name:  _______________________
                                      Title: _______________________


                                The  Assignor  executes  and  delivers this
                                Assignment, Assumption and Amendment  No. 6
                                to First  Preferred Fleet  Mortgage  solely
                                for the purposes of and with respect to the
                                assignments  and   assumptions  being  made
                                hereunder  and  not  with  respect  to  any
                                amendment or other matter hereunder.

                                TEXAS  COMMERCE BANK  NATIONAL ASSOCIATION,
                                as  Trustee   (Holder-Transferee  from  the
                                Receiver of NEW FIRST  CITY, TEXAS-HOUSTON,
                                N.A.,  successor in interest to FIRST CITY,
                                TEXAS-HOUSTON, N.A.)

                                By:   ______________________________
                                      Name:  _______________________
                                      Title: _______________________

                                BANK ONE, TEXAS, N.A.


                                By:   ________________________________
                                      Name:  _________________________
                                      Title: _________________________


                                ACKNOWLEDGEMENT


  STATE OF TEXAS    (
                    (
  COUNTY OF HARRIS  (

        BEFORE ME, _______________________________, a notary public in  and
  for   said  county   and  state,   on   this  day   personally   appeared 
  ________________________________, known to me to be the person whose name
  is  subscribed to  the foregoing  instrument and  known to  me to  be the
  ___________________________   of  Reading   &  Bates   Drilling   Co.,  a
  corporation  organized under the laws of Oklahoma, and acknowledged to me
  that  he  executed said  instrument for  the  purposes and  consideration
  therein expressed, and as the act of said corporation.

        Given under my hand and  seal of office this _____ day of ________,
  1995.



                                      ____________________________
                                      Notary Public

                                ACKNOWLEDGEMENT

  STATE OF TEXAS                       

  COUNTY OF HARRIS  

        BEFORE ME, _______________________________, a notary public  in and
  for  said   county   and   state,  on   this  day   personally   appeared
  _______________________,  known  to me  to  be the  person whose  name is
  subscribed  to  the  foregoing instrument  and  known  to  me  to be  the
  ______________________  of Texas  Commerce  Bank National  Association, a
  national banking association and acknowledged to me that he executed said
  instrument for the purposes  and consideration therein expressed, and  as
  the act of said association.

        Given under my hand and  seal of office this _____ day of ________,
  1995.



                                      ____________________________
                                      Notary Public


                                ACKNOWLEDGEMENT


  STATE OF TEXAS    
                    
  COUNTY OF HARRIS  

        BEFORE  ME, _______________________________, a notary public in and
  for  said   county  and   state,   on  this   day   personally   appeared
  _______________________,  known  to me  to  be the  person whose  name is
  subscribed  to  the  foregoing  instrument and  known  to  me  to be  the
  ______________________  of  Bank One,  Texas,  N.A.,  a national  banking
  association and acknowledged  to me that he executed said  instrument for 
  the purposes and consideration therein expressed, and as the act  of said
  association.

        Given under my hand and seal of office this  _____ day of ________,
  1995.



                                      ____________________________
                                      Notary Public



<PAGE>
                                                    EXHIBIT E-2
                                        TO AMENDED AND RESTATED
                                      CREDIT FACILITY AGREEMENT


            Assignment, Assumption and Amendment No. 6
                to First Preferred Fleet Mortgage

        Assignment, Assumption and Amendment  No. 6 dated April
   __, 1995 to theFirst Preferred Fleet Mortgage datedMarch 29,
   1991 (the "Original Mortgage"), as  amended (hereinafter the
   Original  Mortgage  as  amended  being referred  to  as  the
   "Mortgage")  among  READING  &  BATES  EXPLORATION   CO.,  a
   corporation organized and existingunder the laws ofthe State
   of Oklahoma,  with its  principal place  of business at  901
   Threadneedle,  Suite  200,  Houston,   Texas    77079,  (the
   "Shipowner"),to Texas Commerce Bank National Association, as
   Trustee (Holder-Transferee from  the Receiver  of New  First
   City, Texas,  N.A., the successor in interest to First City,
   Texas-Houston,N.A.), a nationalbanking association, with its
   principal place  of business  at 600 Travis,  Houston, Texas
   77002,  (the "Assignor"),  which  entity is  executing  this
   document  solely for the purposes of and with respect to the
   assignments and assumptions being madehereunder and not with
   respect to any amendment  or other matter hereunder,and Bank
   One, Texas, N.A., a nationalbanking association, as Trustee,
   with its principal place of business at 910 Travis, Houston,
   Texas  77002 (the "Trustee").

        WHEREAS, the  Shipowner is  the owner  of 100%  of  the
   following U.S. flag drilling rigs (the "Vessels"):

                                 Place of
   Name           Off. No.       Build          Home Port

   D.R. STEWART   626904       Singapore        Houston, Texas
   D.K. MCINTOSH  591662       Singapore        Houston, Texas
   W.D. KENT      583169       Brownsville,Tx.  Houston, Texas 

   which Vessels have been  duly registered in the name  of the
   Shipowner inaccordance with the laws of the United States of
   America; and

        WHEREAS, the OriginalMortgage was received forrecord at
   2:45 p.m. on March  29, 1991 at the U.S. Coast  Guard Vessel
   Documentation Office at the  Port of Houston, Texas and  was
   recorded in Book No. PM-244 at Inst. No. 2; and 

        WHEREAS,  the Original  Mortgage mortgaged  one hundred
   percent  (100%) of the  Vessels, together with  all of their
   boilers, engines, machinery,  masts, spars, sails,  rigging,
   boats, anchors, chains, tackle,apparel, furniture, fittings,
   equipment, drilling equipment, pumps, drill  pipes, collars, 
   racking,  housing, spare  parts  and  supporting  inventory,
   vehicles and living quarters (excluding equipment aboard the
   Vessels which is not  owned by the Shipowner) and  all other
   appurtenances  to the  Vessels  appertaining  or  belonging,
   whether now owned or hereafter acquired, whether on board or
   not, and all additions, improvementsand replacements made in
   or to such Vessels; and 

        WHEREAS,  the  Original  Mortgage  was  granted  by the
   Shipowner to the  Assignor for the  purpose of securing  the
   obligation ofthe Shipowner to pay to NMB Postbank Groep N.V.
   (now known  as Internationale  Nederlanden Bank  N.V.)  (the
   "Lender")  all amounts  due and  payable under  that certain
   Credit Facility Agreement datedas of March 27, 1991among the
   Shipowner, the other Borrowers  named therein and the Lender
   (the "Credit Agreement"); and 

        WHEREAS,a true and accuratecopy of the Credit Agreement
   is attached to  the Mortgage as  Exhibit A and forms  a part
   thereof; and

        WHEREAS, pursuant to Amendment No. 1 to Credit Facility
   Agreement  dated as of May 24, 1991 among the Shipowner, the
   other Borrowers and the  Lender ("Amendment No. 1"), certain
   terms of the Credit Agreement were amended; and

        WHEREAS,  the Shipowner  and  the Assignor  amended the
   Original Mortgagein order to reflect the changes made to the
   Credit Agreement by Amendment No. 1; and 

        WHEREAS, Amendment No. 1 to the  Mortgage dated May 31,
   1991 was received for record at 1:00 p.m. on June 5, 1991 at
   the U.S. Coast Guard Vessel Documentation Office at the Port
   of Houston, Texasand was recorded in BookNo. PM-248 at Inst.
   No. 1; and 

        WHEREAS, pursuant to Amendment No. 2 to Credit Facility
   Agreement dated as of June 28, 1991 among the Shipowner, the
   other Borrowers and the  Lender ("Amendment No. 2"), certain
   terms of the Credit Agreement were amended; and

        WHEREAS,  the Shipowner  and the  Assignor amended  the
   Mortgage  in order to reflect the changes made to the Credit
   Agreement by Amendment No. 2; and

        WHEREAS, Amendment No. 2 to the Mortgage dated June 28,
   1991  was received for record on  August 7, 1991 at the U.S.
   Coast Guard  Vessel Documentation  Office, Port of  Houston,
   Texas at 11:26 a.m. and was recorded at BookNo. PM-250, I-5;
   and

        WHEREAS, pursuant to Amendment No. 3 to Credit Facility
   Agreement dated June 30, 1991 among the Shipowner, the other
   Borrowers and theLender ("Amendment No. 3"), certainterms of
   the Credit Agreement were amended; and

        WHEREAS,  the Shipowner  and  the Assignor  amended the
   Mortgage to reflect the changes made to the Credit Agreement
   by Amendment No. 3; and

        WHEREAS, Amendment No.3 to the Mortgagedated August 30,
   1991was received for record at8:58 a.m. on September 6, 1991
   at the U.S. Coast Guard Vessel Documentation Office, Port of
   Houston, Texas and was recorded at Book PM-252, I-18; and

        WHEREAS, pursuant to Amendment No. 4 to Credit Facility
   Agreement dated as of June 30, 1992 among the Shipowner, the
   other Borrowers and the  Lender ("Amendment No. 4"), certain
   terms of the Credit Agreement were amended; and 

        WHEREAS,  the Shipowner  and  the Assignor  amended the
   Mortgage to reflect the changes made to the Credit Agreement
   by Amendment No. 4; and

        WHEREAS, Amendment No. 4 to Mortgage dated September 9,
   1992 was received for  record on September 11, 1992  at 7:20
   a.m. in the U.S. CoastGuard Vessel Documentation Office, for
   the  Port of Houston, Texas and was recorded at Book PM-263,
   Instrument 83; and

        WHEREAS, pursuant  to the terms  of Amendment No.  5 to
   Credit Facility Agreement datedas of February 25, 1993,among
   the Shipowner, the other Borrowersand the Lender ("Amendment
   No. 5"), certain terms of the Credit Agreement were amended;
   and

        WHEREAS,  the Shipowner  and the  Assignor  amended the
   Mortgage to reflect the changes made to the Credit Agreement
   by Amendment No. 5; and

        WHEREAS, Amendment No. 5 to the Mortgage dated February
   25, 1993 was receivedfor record on March 1, 1993at 2:52 p.m.
   in  the U.S. Coast Guard Vessel Documentation Office for the
   Port  of Houston,  Texas and  was  recorded at  Book PM-269,
   Instrument 97; and

        WHEREAS,  pursuant  to the  terms  of  the Amended  and
   Restated Credit Facility Agreement datedthe date hereof (the
   "Restated Agreement")  among  the Shipowner,  the  Borrowers
   listed  therein and  the  Lender, the  Credit Agreement  was
   restated and certain of its terms were amended; and

        WHEREAS, the Lender desires that the Trustee act on its
   behalf in respect of, amongother things, the securitygranted
   by the Mortgage; and 

        WHEREAS, theAssignor has agreed toassign its rights and
   obligations under the Mortgageto the Trustee, andthe Trustee
   has agreed to assume such rights and obligations; and 

        WHEREAS, the Shipowner and the Trustee wishto amend the
   Mortgage  to  reflect  the  changes  made  by  the  Restated
   Agreement.

        NOW, THEREFORE, in consideration of the above recitals,
   and other  good and valuable consideration,  the receipt and
   sufficiency  of which  is hereby  acknowledged,  the parties
   hereto agree to amend the Mortgage as follows:

                    Assignment and Assumption

        The Assignor  agrees to  assign and the  Trustee hereby
   agrees  to assume  the  Mortgage, and  the Shipowner  hereby
   consents to such assignment and assumption as follows:

        1.   The Assignor hereby sells, transfers,  assigns and
   grants absolutely and  not by  way of security,  all of  its
   right,  title  and  interest and  responsibilities,  powers,
   duties,  liabilities and  obligations in,  to and  under the
   Mortgage to the Trustee.

        2.   In connection with this Assignment, Assumption and
   Amendment,  the Shipowner  represents  and  warrants to  the
   Trustee  that the Mortgage is  in full force  and effect and
   there  are no events which would constitute a default by the
   Shipowner under the  terms of the  Mortgage or events  which
   would, with the  passage of  time or the  giving of  notice,
   constitute such an Event of Default.

        3.   The  Trustee hereby  acknowledges  receipt of  the
   Mortgage  and expressly  agrees  to accept  the position  of
   trustee  under,  and  be bound  by,  all  of  the terms  and
   provisions of the Mortgage, as amended hereby.

        4.   The Trustee herebyagrees to perform andcomply with
   all of the terms and conditions of, and hereby assumesall of
   the right,  title  and interest,  responsibilities,  powers,
   duties, liabilities andobligations of the Assignorunder, the
   Mortgage from and after the date hereof.

        5.   The Assignor is hereby released anddischarged from
   its  responsibilities,  powers,   duties,  liabilities   and
   obligations under the Mortgage.

        6.   The Assignor agrees that at any time and from time
   to time, upon thewritten request of the Trustee,the Assignor
   will  promptly and duly execute and deliver any and all such
   further instruments  and  documents  as  may  be  reasonably
   necessary to effect the transfers expressly made by Assignor
   under this Assignment, Assumption and  Amendment, including,
   without limitation, assignments of financing statements, and
   assignments and releases of vessel mortgages.

        7.   The Trustee  shall be  for all purposes  under the
   Mortgage andthe other Loan Documents the Trustee without any
   further acts or instruments on the part of any Person.

                   Amendment No. 6 to Mortgage

        The Shipowner and the Trustee hereby agree to amend the
   Mortgage as follows:

        A.   Exhibit A to the  Mortgage is hereby replaced with
   the Restated  Agreement in the  form of  Exhibit A  attached
   hereto.

        B.   Hereinafter  each reference  in  the Mortgage,  as
   amended, to the Credit Agreement shall refer to the Restated
   Agreement.

        C.   Hereinafter each  reference  in the  Mortgage,  as
   amended,  to the Trustee shall mean Bank One, Texas, N.A., a
   national banking  association  with its  principal place  of
   business at 910 Travis, Houston, Texas  77002.

        D.   For purposes of recording  this Amendment No. 6 to
   First Preferred Fleet Mortgage pursuant to 46 U.S.C. 31321,
   it  amends  mortgage covenants.    The total  amount  of the
   Mortgage  is reduced  to  USD 65,000,000  plus interest  and
   performance of mortgage covenants.

        E.   Except as specifically amendedherein, the Mortgage
   shall remain in full force and effect.

        All capitalized terms used hereinbut not defined herein
   shall have the meanings given to them in the Mortgage.

        THIS ASSIGNMENT, ASSUMPTION AND AMENDMENTNO. 6 TO FIRST
   PREFERRED FLEET MORTGAGE SHALL BE GOVERNED BY, AND CONSTRUED
   IN ACCORDANCE WITH, THE LAWS OF THE UNITED STATES OF AMERICA
   AND, TO THE EXTENT THEY DO NOTAPPLY, TO THE INTERNAL LAWS OF
   THE STATE OF NEW YORK.

        IN WITNESS HEREOF, the partieshereto have duly executed
   this  Assignment, Assumption  and Amendment  No. 6  to First
   Preferred Fleet Mortgage on the date first written above.

                            READING & BATES EXPLORATION CO.


                            By:________________________________
                                 Name:  T. W. Nagle
                                 Title: Vice President and
                                        Treasurer

                            The Assignor  executes and delivers
                            this  Assignment,   Assumption  and
                            Amendment No. 6 to  First Preferred
                            Fleet   Mortgage  solely   for  the
                            purposes of and with respect to the
                            assignments  and assumptions  being
                            made hereunder and not with respect
                            to  any  amendment or  other matter
                            hereunder.

                            TEXAS   COMMERCE    BANK   NATIONAL
                            ASSOCIATION,  as  Trustee  (Holder-
                            Transferee from the Receiver of NEW
                            FIRST  CITY,  TEXAS-HOUSTON,  N.A.,
                            successor in interest toFIRST CITY,
                            TEXAS-HOUSTON, N.A.)

                            By:  ________________________________
                                 Name:  _________________________
                                 Title: _________________________


                            BANK ONE, TEXAS, N.A.

                            By:  ________________________________
                                 Name:  Roark Ashie
                                 Title: Vice President


                          ACKNOWLEDGMENT

   STATE OF TEXAS                
                                 
   COUNTY OF HARRIS              


        BEFORE  ME,  __________________, a notary public in and
   for  said  county and state, on this day personally appeared
   T.  W. Nagle,  known to me  to be  the person  whose name is
   subscribed to the foregoing instrument and known to me to be
   the  Vice  President  and   Treasurer  of  Reading  &  Bates
   Exploration Co.,  a corporation organized under  the laws of
   Oklahoma,  and  acknowledged to  me  that  he executed  said
   instrument  for  the  purposes  and   consideration  therein
   expressed, and as the act of said corporation.

        Given under my hand and  seal of office this ___ day of
   ________, 1995.


                                 _______________________________
                                 Notary Public

<PAGE>

                          ACKNOWLEDGMENT


   STATE OF TEXAS                
                                 
   COUNTY OF HARRIS              


        BEFORE  ME,  ______________________________,  a  notary
   public  in  and  for said  county  and  state,  on this  day
   personally appearedMauri Cowen, known to me to be the person
   whose name issubscribed to the foregoing instrumentand known
   to me to be the Assistant Vice President and Corporate Trust
   Officer  of  TEXAS  COMMERCE  BANK  NATIONAL ASSOCIATION,  a
   national banking association and  acknowledged to me that he
   executed said instrument for the purposes and  consideration
   therein expressed, and as the act of said association.

        Given under  my hand and seal of office this ___ day of
   ________, 1995.


                                 _______________________________
                                 Notary Public


                          ACKNOWLEDGMENT


   STATE OF TEXAS                
                                 
   COUNTY OF HARRIS              


        BEFORE  ME,  ______________________________,  a  notary
   public  in  and  for said  county  and  state,  on this  day
   personally appearedRoark Ashie, known to me to be the person
   whose name is subscribed tothe foregoing instrument andknown
   to me to be the  Vice President of BANK ONE, TEXAS,  N.A., a
   national banking association and  acknowledged to me that he
   executed said  instrument for the purposes and consideration
   therein expressed, and as the act of said association.

        Given under my hand and seal of office  this ___ day of
   ________, 1995.


                                 _______________________________
                                 Notary Public
<PAGE>
                                                                 EXHIBIT E-3
                                                     TO AMENDED AND RESTATED
                                                   CREDIT FACILITY AGREEMENT 


                  Assignment, Assumption and Amendment No. 6
                          to Preferred Fleet Mortgage

        Assignment,  Assumption and Amendment No. 6 dated April __, 1995 to
  the  Preferred  Fleet  Mortgage  dated  March  29,  1991  (the  "Original
  Mortgage"),  as amended  (hereinafter  the Original  Mortgage  as amended
  being referred to as the "Mortgage") among  READING & BATES DRILLING CO.,
  a  corporation organized  and existing  under the  laws of  the State  of
  Oklahoma, with its principal place of business at 901 Threadneedle, Suite
  200,  Houston,  Texas   77079,  (the  "Shipowner"),  TEXAS COMMERCE  BANK
  NATIONAL ASSOCIATION, as Trustee  (Holder-Transferee from the Receiver of
  New First City,  Texas-Houston, N.A., the successor in interest  to First
  City,  Texas-Houston, N.A.),  a  national banking  association,  with its
  principal place of  business at 600 Travis,  Houston, Texas  77002,  (the
  "Assignor"), which  entity is  executing  this document  solely  for  the
  purposes of  and with respect  to the assignments  and assumptions  being
  made hereunder  and not  with respect  to any  amendment or  other matter
  hereunder,  and Bank One, Texas, N.A., a national banking association, as
  Trustee, with  its principal place  of business at  910 Travis,  Houston,
  Texas  77002 (the "Trustee").

        WHEREAS, the Shipowner  is the owner of 100%  of the following U.S.
  flag drilling rigs (the "Vessels"):

                                          
        Name                          Official No.         

        ROGER W. MOWELL               645360
        J.T. ANGEL                    651645
        JIM CUNNINGHAM                651643

  which Vessels have been duly  registered in the name of the  Shipowner in
  accordance with the laws of the United States of America; and

        WHEREAS, the Original Mortgage was received for record at 2:35 p.m.
  on March 29, 1991 at the U.S. Coast Guard  Vessel Documentation Office at
  the  Port of Houston, Texas and was  recorded in Book No. PM-244 at Inst.
  No. 1; and 

        WHEREAS, the Original Mortgage mortgaged one hundred percent (100%)
  of the Vessels,  together with all of their boilers,  engines, machinery,
  masts, spars,  sails, rigging,  boats, anchors, chains,  tackle, apparel,
  furniture, fittings, equipment,  drilling equipment, pumps, drill  pipes,
  collars, racking, housing, spare parts and supporting inventory, vehicles
  and  living quarters (excluding equipment aboard the Vessels which is not
  owned  by the  Shipowner)  and all  other  appurtenances to  the  Vessels
  appertaining  or  belonging, whether  now  owned  or hereafter  acquired,
  whether on board or not, and all additions, improvements and replacements
  made in or to such Vessels; and 

        WHEREAS,  the Original Mortgage was granted by the Shipowner to the
  Assignor  for the purpose of securing the  obligation of the Shipowner to
  pay to NMB  Postbank Groep N.V. (now known as  Internationale Nederlanden
  Bank N.V.)  (the "Lender") all amounts due and payable under that certain
  Credit Facility Agreement dated as of March 27, 1991 among the Shipowner,
  the   other  Borrowers  named   therein  and  the   Lender  (the  "Credit
  Agreement"); and 

        WHEREAS,  a true  and  accurate copy  of  the Credit  Agreement  is
  attached to the Mortgage as Exhibit A and forms a part thereof; and

        WHEREAS, pursuant to Amendment  No. 1 to Credit  Facility Agreement
  dated as of May 24, 1991 among the Shipowner, the other Borrowers and the
  Lender  ("Amendment No. 1"),  certain terms of the  Credit Agreement were
  amended; and

        WHEREAS,  the  Shipowner  and  the  Assignor amended  the  Original
  Mortgage in order to reflect the changes made to  the Credit Agreement by
  Amendment No. 1; and

        WHEREAS, Amendment  No. 1  to the Mortgage  dated May 31,  1991 was
  received for record at 2:00 p.m. on June 5, 1991 at the U.S. Coast  Guard
  Vessel  Documentation  Office  at  the Port  of  Houston,  Texas and  was
  recorded in Book No. PM-248 at Inst. No. 2; and

        WHEREAS, pursuant to Amendment No.  2 to Credit Facility  Agreement
  dated June 28,  1991 among  the Shipowner,  the other  Borrowers and  the
  Lender  ("Amendment No. 2"),  certain terms of the  Credit Agreement were
  amended; and 

        WHEREAS,  the  Shipowner and  the  Assignor  amended the  Mortgage,
  pursuant to the terms  of Amendment No.  2 to the  Mortgage, in order  to
  reflect the changes made to the Credit Agreement by Amendment No. 2; and

        WHEREAS, Amendment No.  2 to the Mortgage dated June  28, 1991, was
  received for record  at 1:31  p.m. on August  6, 1991 at  the U.S.  Coast
  Guard  Vessel  Documentation Office,  Port  of  Houston,  Texas  and  was
  recorded at Book PM-250, I-3; and

        WHEREAS,  pursuant to Amendment No. 3  to Credit Facility Agreement
  dated August  30, 1991 among  the Shipowner, the other  Borrowers and the
  Lender  ("Amendment No. 3"),  certain terms of the  Credit Agreement were
  amended; and

        WHEREAS,  the Shipowner  and the Assignor  amended the  Mortgage to
  reflect the changes made to the Credit Agreement by Amendment No. 3; and

        WHEREAS, Amendment No. 3 to  the Mortgage dated August 30, 1991 was
  received for record at 8:07  a.m. on September 6, 1991 at the  U.S. Coast
  Guard  Vessel Documentation  Office,  Port  of  Houston,  Texas  and  was
  recorded at Book PM-252, I-17; and

        WHEREAS, pursuant to Amendment No.  4 to Credit Facility  Agreement
  dated as  of June 30, 1992  among the Shipowner, the  other Borrowers and
  the Lender  ("Amendment No. 4"),  certain terms of  the Credit  Agreement
  were amended; and 

        WHEREAS, the  Shipowner and the  Assignor amended  the Mortgage  to
  reflect the changes made to the Credit Agreement by Amendment No. 4; and

        WHEREAS, Amendment  No. 4 to  the Mortgage dated  September 9, 1992
  was  received for  record at  the U.S.  Coast Guard  Vessel Documentation
  Office for the Port of Houston, Texas on September 10,  1992 at 1:05 p.m.
  and recorded at Book PM-263, Instrument 82; and

        WHEREAS,  pursuant  to  the  terms of  Amendment  No.  6 to  Credit
  Facility Agreement  dated as of  February 25, 1993, among  the Shipowner,
  the other Borrowers and the Lender ("Amendment No. 5"), certain terms  of
  the Credit Agreement were amended; and

        WHEREAS,  the Shipowner and  the Assignor  amended the  Mortgage in
  order  to reflect the changes  made to the Credit  Agreement by Amendment
  No. 5; and

        WHEREAS,  Amendment No. 5  to Mortgage dated February  25, 1993 was
  received for record at 10:32 a.m. in the United States Coast Guard Vessel
  Documentation Office  for the Port of  Houston, and was recorded  at Book
  PM-269, Instrument 93; and

        WHEREAS,  pursuant  to the  Amended  and  Restated Credit  Facility
  Agreement  dated the  date hereof  (the "Restated  Agreement")  among the
  Shipowner, the  Borrowers  listed  therein and  the  Lender,  the  Credit
  Agreement was restated and certain of its terms were amended; and

        WHEREAS,  the Lender desires that the  Trustee act on its behalf in
  respect of, among other things, the security granted by the Mortgage; and

        WHEREAS,  the  Assignor  has  agreed  to  assign  its  rights   and
  obligations under the Mortgage to the Trustee, and the Trustee has agreed
  to assume such rights and obligations; and 

        WHEREAS, the Shipowner  and the Trustee wish to amend  the Mortgage
  to reflect the changes made by the Restated Agreement.

        NOW, THEREFORE, in consideration  of the above recitals,  and other
  good  and valuable consideration, the receipt and sufficiency of which is
  hereby acknowledged, the parties hereto agree to assign, assume and amend
  the Mortgage as follows:

                           Assignment and Assumption

        The  Assignor agrees  to assign  and the  Trustee hereby  agrees to
  assume the Mortgage, and the Shipowner hereby consents to such assignment
  and assumption as follows:

        1.    The  Assignor hereby  sells,  transfers,  assigns and  grants
  absolutely and  not  by way  of security,  all of  its  right, title  and
  interest   and   responsibilities,   powers,  duties,   liabilities   and
  obligations in, to and under the Mortgage to the Trustee.

        2.    In connection with this Assignment, Assumption and Amendment,
  the Shipowner represents and warrants to the Trustee that the Mortgage is
  in full force and effect and there are no events which would constitute a
  default by the Shipowner under  the terms of the Mortgage or events which
  would,  with the passage of time or the giving of notice, constitute such
  an Event of Default.

        3.    The Trustee  hereby acknowledges receipt of  the Mortgage and
  expressly agrees  to accept the position  of trustee under,  and be bound
  by, all of the terms and provisions of the Mortgage, as amended hereby.

        4.    The Trustee hereby  agrees to perform and comply with  all of
  the terms and  conditions of, and hereby assumes all  of the right, title
  and   interest,  responsibilities,   powers,  duties,   liabilities   and
  obligations of the Assignor  under, the Mortgage from and  after the date
  hereof.

        5.    The  Assignor  is hereby  released  and  discharged from  its
  responsibilities, powers, duties,  liabilities and obligations  under the
  Mortgage.

        6.    The  Assignor agrees that at any time  and from time to time,
  upon the written  request of the Trustee, the Assignor  will promptly and
  duly  execute  and  deliver  any and  all  such  further instruments  and
  documents as  may be reasonably  necessary to effect  transfers expressly
  made  by  Assignor  under  this  Assignment,  Assumption  and  Amendment,
  including, without limitation,  assignments of financing statements,  and
  assignments and releases of vessel mortgages.

        7.    The  Trustee shall be for all purposes under the Mortgage and
  the  other  Loan Documents  the  Trustee  without  any  further  acts  or
  instruments on the part of any Person. 


                          Amendment No. 6 to Mortgage

        The Shipowner and the Trustee hereby agree to amend the Mortgage as
  follows:

        A.    Exhibit A  to  the  Mortgage  is  hereby  replaced  with  the
  Restated Agreement in the form of Exhibit A attached hereto.

        B.    Hereinafter each  reference in  the Mortgage, as  amended, to
  the Credit Agreement shall refer to the Restated Agreement.

        C.    Hereinafter each  reference in  the Mortgage, as  amended, to
  the  Trustee  shall mean  Bank  One,  Texas,  N.A.,  a  national  banking
  association  with its principal place of business at 910 Travis, Houston,
  Texas  77002.

        D.    For purposes of  recording this Amendment No.  6 to Preferred
  Fleet  Mortgage  pursuant  to  46   U.S.C.  31321,  it  amends  mortgage
  covenants.  The total amount of the Mortgage is reduced to USD 65,000,000
  plus interest and performance of mortgage covenants.

        E.    Except  as specifically  amended herein,  the  Mortgage shall
  remain in full force and effect.

        All capitalized terms used herein but not defined herein shall have
  the meanings given to them in the Mortgage.

        THIS ASSIGNMENT, ASSUMPTION AND AMENDMENT NO. 6  TO PREFERRED FLEET
  MORTGAGE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS
  OF THE UNITED STATES OF AMERICA AND, TO THE EXTENT  THEY DO NOT APPLY, TO
  THE INTERNAL LAWS OF THE STATE OF NEW YORK.

        IN  WITNESS  HEREOF,  the parties  hereto have  duly  executed this
  Assignment, Assumption and Amendment No. 6 to Preferred Fleet Mortgage on
  the date first written above.

                    READING & BATES DRILLING CO.



                    By:  ________________________________
                          Name:  T. W. Nagle
                          Title: Vice President and
                                  Treasurer



                    The  Assignor  executes  and delivers  this Assignment,
                    Assumption and  Amendment  No.  6  to  Preferred  Fleet
                    Mortgage solely for the purposes of and with respect to
                    the  assignments and  assumptions being  made hereunder
                    and not with respect  to any amendment or other  matter
                    hereunder.

                    TEXAS COMMERCE BANK NATIONAL ASSOCIATION, as Trustee
                    Holder-Transferee from the Receiver of    NEW     FIRST
                    CITY,  TEXAS-HOUSTON,  N.A.,  successor in  interest to
                    FIRST CITY, TEXAS-HOUSTON, N.A.


                    By:   ________________________________
                          Name:  Mauri Cowen
                          Title: Assistant Vice President
                                  and Corporate Trust Office

                   BANK ONE, TEXAS, N.A., as Trustee


                    By:   _________________________________
                          Name:  Roark Ashie
                          Title: Vice President


                                ACKNOWLEDGMENT



  STATE OF TEXAS       
                       
  COUNTY OF HARRIS     


        BEFORE ME, ______________________________,  a notary public  in and
  for said county and state, on this day personally appeared
  T. W. Nagle, known to me to be the person whose name is subscribed to the
  foregoing  instrument and  known  to  me to  be  the  Vice President  and
  Treasurer  of Reading & Bates Drilling Co., a corporation organized under
  the laws  of  Oklahoma, and  acknowledged to  me  that he  executed  said
  instrument for the purposes and  consideration therein expressed, and  as
  the act of said corporation.

        Given under  my hand and seal  of office this ___  day of ________,
  1995.


                                      _______________________________
                                      Notary Public


                                ACKNOWLEDGMENT



  STATE OF TEXAS            
                            
  COUNTY OF HARRIS          


        BEFORE ME,  ______________________________, a notary  public in and
  for said county  and state, on this day  personally appeared Mauri Cowen,
  known to me  to be the person  whose name is subscribed  to the foregoing
  instrument  and  known to  me  to be  the  Assistant  Vice President  and
  Corporate Trust Officer  of Texas Commerce  Bank National Association,  a
  national banking association and acknowledged to me that he executed said
  instrument for the  purposes and consideration therein expressed,  and as
  the act of said association.

        Given under my hand and  seal of office this ___ day  of _________,
  1995.


                                      _______________________________
                                      Notary Public


                                ACKNOWLEDGMENT



  STATE OF TEXAS          
                          
  COUNTY OF HARRIS        

        BEFORE  ME, ______________________________, a notary  public in and
  for said county  and state, on this day personally  appeared Roark Ashie,
  known  to me to be the  person whose name is  subscribed to the foregoing
  instrument and known to  me to be the Vice President of  Bank One, Texas,
  N.A.,  a  national banking  association  and acknowledged  to me  that he
  executed  said  instrument for  the  purposes  and consideration  therein
  expressed, and as the act of said association.

        Given under my hand and  seal of office this ___ day  of _________,
  1995.


                                      _______________________________
                                      Notary Public


 
                                                    EXHIBIT E-4
                                        TO AMENDED AND RESTATED
                                      CREDIT FACILITY AGREEMENT


            Assignment, Assumption and Amendment No. 6
                 to First Preferred Ship Mortgage


       Assignment, Assumption  and Amendment No. 6  dated April
  __, 1995 to the First Preferred Ship Mortgage dated March 29,
  1991 (the "Original  Mortgage"), as amended (hereinafter  the
  Original  Mortgage  as  amended  being  referred  to  as  the
  "Mortgage") among  READING  AND BATES,  INC.,  a  corporation
  organized  and  existing  under  the laws  of  the  State  of
  Oklahoma,  with  its  principal  place  of  business  at  901
  Threadneedle,   Suite   200,  Houston,   Texas   77079,  (the
  "Shipowner"),  TEXAS COMMERCE  BANK NATIONAL  ASSOCIATION, as
  Trustee  (Holder-Transferee  for the  Receiver  of  New First
  City, Texas-Houston, N.A., the successor in interest to First
  City  Texas-Houston, N.A.),  a national  banking association,
  with  its principal place of business at 600 Travis, Houston,
  Texas 77002, (the "Assignor"), which entity is executing this
  document solely for the  purposes of and with respect  to the
  assignments and assumptions being made hereunder and not with
  respect to any amendment or other matter hereunder, and  Bank
  One, Texas,  N.A., a  national banking association,  with its
  principal  place of  business at  910 Travis,  Houston, Texas
  77002 (the "Trustee").  

       WHEREAS,  the Shipowner is the owner of 100% of the U.S.
  flag  drilling rig M. G. HULME, JR., Official No. 651644 (the
  "Vessel"), which Vessel has been  duly registered in the name
  of  the Shipowner in accordance  with the laws  of the United
  States of America; and 

       WHEREAS, the  Original Mortgage was  received for record
  at  2:17 p.m.  on March  29, 1991,  at the  U.S. Coast  Guard
  Vessel Documentation Office at the Port of Houston, Texas and
  was recorded in Book No. PM-243 at Inst. No. 45; and

       WHEREAS,  the Original  Mortgage  mortgaged one  hundred
  percent  (100%)  of  the  Vessel, together  with  all  of its
  boilers,  engines, machinery,  masts, spars,  sails, rigging,
  boats, anchors, chains, tackle, apparel, furniture, fittings,
  equipment,  drilling equipment, pumps,  drill pipes, collars,
  racking,  housing,  spare  parts  and  supporting  inventory,
  vehicles and  living quarters (excluding equipment aboard the
  Vessel which is  not owned  by the Shipowner)  and all  other
  appurtenances   to  the  Vessel  appertaining  or  belonging,
  whether now owned or hereafter  acquired, whether on board or
  not, and all additions, improvements and replacements made in
  or to such Vessel; and

       WHEREAS,  the  Original  Mortgage  was  granted  by  the
  Shipowner to the  Assignor for  the purpose  of securing  the
  obligation of the Shipowner to pay to NMB Postbank Groep N.V.
  (now  known as  Internationale  Nederlanden Bank  N.V.)  (the
  "Lender")  all amounts  due  and payable  under that  certain
  Credit Facility  Agreement dated as  of March 27,  1991 among
  the  Shipowner, the  other  Borrowers named  therein and  the
  Lender (the "Credit Agreement"); and

       WHEREAS,  a  true  and   accurate  copy  of  the  Credit
  Agreement  is attached to the Mortgage as Exhibit A and forms
  a part thereof; and

       WHEREAS, pursuant to Amendment  No. 1 to Credit Facility
  Agreement dated as of  May 24, 1991 among the  Shipowner, the
  other Borrowers  and the Lender ("Amendment  No. 1"), certain
  terms of the Credit Agreement were amended; and

       WHEREAS, the  Shipowner  and the  Assignor  amended  the
  Original Mortgage in order to reflect the changes made to the
  Credit Agreement by Amendment No. 1; and

       WHEREAS, Amendment No. 1  to the Mortgage dated  May 31,
  1991 was received for record at 10:00 a.m. on June 5, 1991 at
  the  U.S. Coast Guard Vessel Documentation Office at the Port
  of  Houston, Texas  and was  recorded in  Book No.  PM-247 at
  Inst. No. 224; and

       WHEREAS, pursuant to Amendment  No. 2 to Credit Facility
  Agreement  dated as of June 28, 1991 among the Shipowner, the
  other Borrowers  and the Lender ("Amendment  No. 2"), certain
  terms of the Credit Agreement were amended; and 

       WHEREAS,  the Shipowner  and  the  Assignor amended  the
  Mortgage in order to  reflect the changes made to  the Credit
  Agreement by Amendment No. 2; and 

       WHEREAS, Amendment No. 2 to the Mortgage dated June  28,
  1991 was received for  record at the U.S. Coast  Guard Vessel
  Documentation  Office, Port  of Houston,  Texas on  August 5,
  1991, at  9:30 a.m. and  was recorded at Book  No. PM-249, I-
  231; and

       WHEREAS, pursuant to Amendment  No. 3 to Credit Facility
  Agreement  dated August  30, 1991,  among the  Shipowner, the
  other Borrowers  and the Lender ("Amendment  No. 3"), certain
  terms of the Credit Agreement were amended; and

       WHEREAS,  the Shipowner  and  the Assignor  amended  the
  Mortgage to reflect the changes made  to the Credit Agreement
  by Amendment No. 3; and

       WHEREAS, Amendment  No. 3  to the Mortgage  dated August
  30, 1991 was received for record at 7:05 a.m. on September 5,
  1991  at the  U.S. Coast  Guard Vessel  Documentation Office,
  Port  of Houston, Texas and was recorded at Book PM-252, I-1;
  and

       WHEREAS, pursuant to Amendment  No. 4 to Credit Facility
  Agreement  dated as of June 30, 1992 among the Shipowner, the
  other Borrowers  and the Lender ("Amendment  No. 4"), certain
  terms of the Credit Agreement were amended; and

       WHEREAS,  the Shipowner  and  the  Assignor amended  the
  Mortgage to reflect the changes made to the Credit  Agreement
  by Amendment No. 4; and

       WHEREAS,   Amendment  No.  4   to  the   Mortgage  dated
  September 9, 1992  was received  for record on  September 10,
  1992   at  12:35  p.m.   at  the  U.S.   Coast  Guard  Vessel
  Documentation  Office  for the  Port  of  Houston, Texas  and
  recorded at Book PM-263, Instrument 81; and

       WHEREAS,  pursuant to  the terms of  Amendment No.  5 to
  Credit  Facility Agreement  dated  as of  February 25,  1993,
  among  the  Shipowner, the  other  Borrowers  and the  Lender
  ("Amendment No.  5"), certain  terms of the  Credit Agreement
  were amended; and 

       WHEREAS,  the Shipowner  and  the Assignor  amended  the
  Mortgage to reflect the changes made to the  Credit Agreement
  by Amendment No. 5.

       WHEREAS, Amendment No. 5  to Mortgage dated February 25,
  1993  was  received for  record at  2:20  p.m. in  the United
  States Coast  Guard Vessel Documentation Office  for the Port
  of Houston, and was  recorded at Book PM-269, Instrument  96;
  and

       WHEREAS,  pursuant  to the  Amended and  Restated Credit
  Facility  Agreement dated  the  date  hereof  (the  "Restated
  Agreement") among the Shipowner, the Borrowers listed therein
  and the Lender, the Credit Agreement was restated and certain
  of its terms were amended; and

       WHEREAS, the  Lender desires that the Trustee act on its
  behalf  in  respect  of,  among other  things,  the  security
  granted by the Mortgage; and 

       WHEREAS, the  Assignor has  agreed to assign  its rights
  and obligations under  the Mortgage to  the Trustee, and  the
  Trustee has agreed to assume such rights and obligations; and

       WHEREAS, the Shipowner and the Trustee wish to amend the
  Mortgage  to  reflect  the   changes  made  by  the  Restated
  Agreement.

       NOW, THEREFORE, in consideration of the above  recitals,
  and other  good and  valuable consideration, the  receipt and
  sufficiency  of  which is  hereby  acknowledged, the  parties
  hereto agree to amend the Mortgage as follows:

                    Assignment and Assumption

       The  Assignor agrees  to assign  and the  Trustee hereby
  agrees  to  assume the  Mortgage,  and  the Shipowner  hereby
  consents to such assignment and assumption as follows:

       The Assignor hereby sells, transfers, assigns and grants
  absolutely  and not  by way  of security,  all of  its right,
  title  and  interest  and  responsibilities,  powers, duties,
  liabilities and obligations in, to and under the Mortgage  to
  the Trustee.

       In  connection  with  this  Assignment,  Assumption  and
  Amendment,  the Shipowner  represents  and  warrants  to  the
  Trustee that the  Mortgage is  in full force  and effect  and
  there are no events  which would constitute a default  by the
  Shipowner under  the terms  of the  Mortgage or  events which
  would,  with the  passage of  time or  the giving  of notice,
  constitute such an Event of Default.

       The Trustee  hereby acknowledges receipt of the Mortgage
  and expressly agrees to accept the position of trustee under,
  and be  bound by,  all  of the  terms and  provisions of  the
  Mortgage, as amended hereby.

       The Trustee hereby agrees to perform and comply with all
  of the terms and conditions of, and hereby assumes all of the
  right,  title and interest, responsibilities, powers, duties,
  liabilities  and  obligations  of  the  Assignor  under,  the
  Mortgage from and after the date hereof. 

       The Assignor is hereby  released and discharged from its
  responsibilities, powers, duties, liabilities and obligations
  under the Mortgage.

       The  Assignor agrees that at  any time and  from time to
  time, upon the written request  of the Trustee, the  Assignor
  will promptly and duly  execute and deliver any and  all such
  further  instruments  and  documents  as  may  be  reasonably
  necessary to effect the  transfers expressly made by Assignor
  under this Assignment,  Assumption and Amendment,  including,
  without limitation, assignments  of financing statements, and
  assignments and releases of vessel mortgages.

       The Trustee shall be for all purposes under the Mortgage
  and the other Loan Documents the Trustee  without any further
  acts or instruments on the part of any Person.

                   Amendment No. 6 to Mortgage

       The Shipowner and the Trustee hereby agree to  amend the
  Mortgage as follows:

       Exhibit A  to the Mortgage  is hereby replaced  with the
  Restated Agreement in the form of Exhibit A attached hereto.

       Hereinafter each  reference in the Mortgage, as amended,
  to  the   Credit  Agreement  shall  refer   to  the  Restated
  Agreement.

       Hereinafter each reference in  the Mortgage, as amended,
  to the Trustee shall  mean Bank One, Texas, N.A.,  a national
  banking association  with its principal place  of business at
  910 Travis, Houston, Texas  77002.

       For purposes  of recording this Amendment No. 6 to First
  Preferred  Ship Mortgage  pursuant  to 46  U.S.C. 31321,  it
  amends mortgage covenants.  The total  amount of the Mortgage
  is reduced to USD 65,000,000 plus interest and performance of
  mortgage covenants.

       Except  as  specifically  amended herein,  the  Mortgage
  shall remain in full force and effect.

       All capitalized terms used herein but not defined herein
  shall have the meanings given to them in the Mortgage.

       THIS ASSIGNMENT, ASSUMPTION AND AMENDMENT NO. 6 TO FIRST
  PREFERRED SHIP  MORTGAGE SHALL BE GOVERNED  BY, AND CONSTRUED
  IN  ACCORDANCE WITH, THE LAWS OF THE UNITED STATES OF AMERICA
  AND, TO THE EXTENT THEY DO NOT APPLY, TO THE INTERNAL LAWS OF
  THE STATE OF NEW YORK.

       IN WITNESS HEREOF, the parties hereto have duly executed
  this  Assignment, Assumption  and  Amendment No.  6 to  First
  Preferred Ship Mortgage on the date first written above.


                 READING AND BATES, INC.


                 By:  ______________________________
                      Name:  _______________________
                      Title: _______________________

                 The  Assignor  executes   and  delivers   this
                 Assignment, Assumption and Amendment No.  6 to
                 First Preferred Ship  Mortgage solely for  the
                 purposes   of   and   with  respect   to   the
                 assignments   and   assumptions   being   made
                 hereunder   and  not   with  respect   to  any
                 amendment or other matter hereunder.

                 TEXAS COMMERCE BANK  NATIONAL ASSOCIATION,  as
                 Trustee Holder-Transferee from the Receiver of
                 NEW FIRST CITY, TEXAS-HOUSTON, N.A., successor
                 in interest to FIRST CITY, TEXAS-HOUSTON, N.A.


                      By:  _____________________________
                      Name:  ___________________________
                      Title: ___________________________
                        

                      BANK ONE, TEXAS, N.A.

                      By:  _____________________________
                      Name:  ___________________________
                      Title: ___________________________



                         ACKNOWLEDGEMENT


  STATE OF TEXAS      
                      
  COUNTY OF HARRIS    

       BEFORE  ME,  _______________________________,  a  notary
  public  in and  for  said  county  and  state,  on  this  day
  personally   appeared   ____________________________________,
  known to  me to be the person whose name is subscribed to the
  foregoing   instrument   and   known   to  me   to   be   the
  ____________________________  of  Reading and Bates,  Inc., a
  corporation  organized  under  the  laws   of  Oklahoma,  and
  acknowledged  to me that he  executed said instrument for the
  purposes and consideration therein  expressed, and as the act
  of said corporation.

       Given under my hand and seal of office this _____ day of
  ________, 1995.



                                ____________________________
                                Notary Public

<PAGE>
                          ACKNOWLEDGEMENT


  STATE OF TEXAS      
                      
  COUNTY OF HARRIS    

       BEFORE  ME,  _______________________________,  a  notary
  public  in and  for  said  county  and  state,  on  this  day
  personally  appeared ______________,  known to  me to  be the
  person whose  name is subscribed to  the foregoing instrument
  and known  to me to be  the ______________________________ of
  Texas Commerce Bank National Association, a  national banking
  association  and acknowledged  to  me that  he executed  said
  instrument   for  the  purposes   and  consideration  therein
  expressed, and as the act of said association.

       Given under my hand and seal of office this _____ day of
  ________, 1995.



                                ____________________________
                                Notary Public


                          ACKNOWLEDGMENT



  STATE OF TEXAS                
                                
  COUNTY OF HARRIS              


       BEFORE  ME,   ______________________________,  a  notary
  public  in and  for  said  county  and  state,  on  this  day
  personally  appeared ___________________,  known to me  to be
  the  person  whose  name   is  subscribed  to  the  foregoing
  instrument     and    known     to    me     to     be    the
  _________________________________ of BANK ONE, TEXAS, N.A., a
  national banking  association and acknowledged to  me that he
  executed said  instrument for the  purposes and consideration
  therein expressed, and as the act of said association.

       Given under my hand  and seal of office this  ___ day of
  ________, 1995.


                                _______________________________
                                Notary Public
<PAGE>
                                                                EXHIBIT F-1
                                                    TO AMENDED AND RESTATED
                                                  CREDIT FACILITY AGREEMENT 


                           ASSIGNMENT OF INSURANCES


        1.    READING AND  BATES BORNEO  DRILLING CO., LTD.,  a corporation
  organized and existing under the laws of  the State of Oklahoma (referred
  to herein as the "Assignor"), in consideration of Ten Dollars (USD 10.00)
  lawful money of the United States of America, and other good and valuable
  consideration,  the   receipt  and   sufficiency  of  which   are  hereby
  acknowledged, as  owner or agent  of the Panamanian  flag drilling  barge
  CHARLEY GRAVES, Official No. 6618-76-B (the "Vessel"), has granted, sold,
  assigned, transferred  and set over  and by this  instrument does  grant,
  sell,  assign,  transfer and  set over  unto BANK  ONE, TEXAS,  N.A., its
  successors, and  assigns (collectively,  the "Assignee"), as  trustee for
  INTERNATIONALE NEDERLANDEN  BANK, N.V. (the "Lender"),  to the Assignee's
  own  proper use  and benefit,  a security  interest  as security  for all
  amounts  due and  owing under  the Amended  and Restated  Credit Facility
  Agreement dated as  of April __, 1995, (the "Restated  Credit Agreement")
  among Assignor, the other Borrowers named therein and the Lender, in  all
  right, title  and  interest of  the Assignor  under, in  and  to (i)  all
  insurances  in respect  of  the Vessel  whether  now or  hereafter  to be
  effected  (excluding  employers'  liabilities,   workman's  compensation,
  protection and indemnity,  general and  excess liabilities   and  similar
  insurances), and  all renewals of or replacements for  the same, (ii) all
  claims, returns of premium and other moneys and claims for moneys due and
  to become  due under said  insurances 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 (collectively,
  the "Insurances").

        2.    It is expressly agreed  that anything herein contained to the
  contrary  notwithstanding, the  Assignor  shall remain  liable  under the
  Insurances to  perform all of  the respective obligations  assumed by  it
  thereunder and the  Assignee shall have no obligation or  liability under
  the  Insurances by reason of or arising  out of this 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 the 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
  may have been assigned to it or to which it may be entitled hereunder  at
  any time or times.

        3.    The  Assignor  does   hereby  constitute  the  Assignee,  its
  successors  and  assigns,  the   Assignor's  true  and  lawful  attorney,
  irrevocably,  with full power  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 the  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.

        4.    The  Assignor hereby  covenants  and agrees  to  procure that
  notice of  this Assignment  shall be duly  given to all  underwriters and
  that  where the consent of any underwriter is required pursuant to any of
  the  Insurances that it shall  be obtained and evidence  thereof shall be
  given  to the  Assignee, or,  in  the alternative,  that in  the  case of
  protection and indemnity  coverage the Assignee shall obtain a  letter of
  undertaking  by the underwriters,  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 Insurance
  assigned hereby  such clauses as to  named assured or  loss payee as  the
  Assignee may require  or approve.  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 as a
  named assured and  a loss payee and  shall provide that there  will be no
  recourse  against  the  Assignee  for  payment   of  premiums,  calls  or
  assessments.

        5.    The powers and authority  granted to the Assignee herein have
  been given  for a valuable consideration  and are hereby   declared to be
  irrevocable, until  all amounts due  under the Restated  Credit Agreement
  are paid in full.

        6.    The Assignor agrees that at  any time and from time to  time,
  upon the written 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 deem desirable in obtaining the
  full benefits  of this  Assignment and of  the rights  and powers  herein
  granted.

        7.    The  Assignor does hereby  warrant and represent  that it has
  not assigned  or pledged, and  hereby covenants that,  without the  prior
  written consent thereto of the Assignee, so long as this 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, it 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  the Insurances, of  this Assignment  or of  any of the
  rights created by the Insurances or this Assignment.

        8.    All notices  or other communications which are required to be
  made to the Assignee hereunder shall be made by postage prepaid letter or
  by telefax, confirmed by letter to:


                    Bank One, Texas, N.A.
                      as Trustee
                    910 Travis, 6th Floor
                    Houston, Texas 77002
                    Attention:  Roark Ashie
                    Telefax No. (713) 751-6806

  or at such  other address as  may have been furnished  in writing by  the
  Assignee.

        9.    Any  payments made pursuant to the terms hereof shall be made
  to the Assignee to  such account or accounts as may, from time to time be
  designated by the Assignee.

        10.   THIS  ASSIGNMENT  SHALL  BE  GOVERNED  BY  AND  CONSTRUED  IN
  ACCORDANCE WITH THE INTERNAL LAWS  OF THE STATE OF NEW YORK, AND  MAY NOT
  BE AMENDED OR CHANGED EXCEPT BY AN INSTRUMENT IN WRITING.

        IN WITNESS WHEREOF,  the Assignor has caused this Assignment  to be
  duly executed this     day of April __, 1995.


                                      READING AND BATES BORNEO DRILLING
                                        CO., LTD.


                                      By:                                
                                      Name:  T. W. Nagle
                                      Title: Vice President and
                                               Treasurer

   
<PAGE>
                                                                EXHIBIT F-2 
                                                    TO AMENDED AND RESTATED
                                                  CREDIT FACILITY AGREEMENT

                           ASSIGNMENT OF INSURANCES

        1.    READING & BATES (A) PTY.,  LTD., a corporation organized  and
  existing  under  the  laws  of  Australia  (referred  to  herein  as  the
  "Assignor"),  in consideration of Ten Dollars (USD 10.00) lawful money of
  the  United States of America, and other good and valuable consideration,
  the receipt and sufficiency of which are hereby acknowledged, as owner or
  agent of the  Australian flag drilling barge RON TAPPMEYER,  ex. Official
  No. 597497 (the  "Vessel"), has granted, sold, assigned,  transferred and
  set  over and by  this instrument does grant,  sell, assign, transfer and
  set  over  unto BANK  ONE,  TEXAS,  N.A.,  its  successors,  and  assigns
  (collectively, the "Assignee"), as trustee for INTERNATIONALE NEDERLANDEN
  BANK, N.V. (the "Lender"), to the  Assignee's own proper use and benefit,
  a security interest  as security for all amounts due  and owing under the
  Amended  and Restated  Credit Facility  Agreement dated  as of  April __,
  1995,  (the  "Restated  Credit  Agreement")  among  Assignor,  the  other
  Borrowers named therein  and the Lender, in all right, title and interest
  of the Assignor under,  in and to  (i) all insurances  in respect of  the
  Vessel  whether now  or hereafter  to  be effected  (excluding employers'
  liabilities,  workman's compensation,  protection and  indemnity, general
  and excess liabilities   and similar insurances), and all  renewals of or
  replacements for  the same, (ii) all claims, returns of premium and other
  moneys and claims for moneys  due and to become due under said insurances
  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 (collectively, the "Insurances").

        2.    It is  expressly agreed that anything herein contained to the
  contrary  notwithstanding, the  Assignor  shall remain  liable  under the
  Insurances to  perform all of  the respective obligations  assumed by  it
  thereunder and the  Assignee shall have no obligation or  liability under
  the Insurances by  reason of or arising out of  this 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 the 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
  may have been assigned to it or to  which it may be entitled hereunder at
  any time or times.

        3.    The  Assignor  does   hereby  constitute  the  Assignee,  its
  successors  and  assigns,  the   Assignor's  true  and  lawful  attorney,
  irrevocably, with full  power 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 the 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.

        4.    The  Assignor hereby  covenants  and agrees  to  procure that
  notice of  this Assignment  shall be duly  given to all  underwriters and
  that where the consent of any underwriter is required  pursuant to any of
  the Insurances  that it shall be  obtained and evidence thereof  shall be
  given  to  the Assignee,  or, in  the  alternative, that  in the  case of
  protection and indemnity  coverage the Assignee shall obtain a  letter of
  undertaking  by the underwriters,  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 Insurance
  assigned hereby  such clauses as  to named assured  or loss  payee as the
  Assignee may require or  approve.  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 as a
  named assured and a  loss payee and shall provide  that there will be  no
  recourse  against  the  Assignee  for   payment  of  premiums,  calls  or
  assessments.

        5.    The powers  and authority granted to the Assignee herein have
  been given  for a valuable consideration  and are hereby   declared to be
  irrevocable,  until all amounts  due under the  Restated Credit Agreement
  are paid in full.

        6.    The  Assignor agrees that at any  time and from time to time,
  upon the written 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 deem desirable in obtaining the
  full  benefits of  this Assignment  and of the  rights and  powers herein
  granted.

        7.    The Assignor does  hereby warrant and  represent that it  has
  not assigned  or pledged, and  hereby covenants that,  without the  prior
  written consent thereto of the Assignee, so long as this 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, it 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 the  Insurances, of  this Assignment or  of any  of the
  rights created by the Insurances or this Assignment.

        8.    All  notices or other communications which are required to be
  made to the Assignee hereunder shall be made by postage prepaid letter or
  by telefax, confirmed by letter to:

                    Bank One, Texas, N.A.
                      as Trustee
                    910 Travis, 6th Floor
                    Houston, Texas 77002
                    Attention:  Roark Ashie
                    Telefax No. (713) 751-6806

  or at  such other address as  may have been  furnished in writing  by the
  Assignee.

        9.    Any  payments made pursuant to the terms hereof shall be made
  to the Assignee to such account or accounts  as may, from time to time be
  designated by the Assignee.

        10.   THIS  ASSIGNMENT  SHALL  BE  GOVERNED  BY  AND  CONSTRUED  IN
  ACCORDANCE  WITH THE INTERNAL LAWS OF THE STATE  OF NEW YORK, AND MAY NOT
  BE AMENDED OR CHANGED EXCEPT BY AN INSTRUMENT IN WRITING.

        IN WITNESS WHEREOF,  the Assignor has caused this Assignment  to be
  duly executed this     day of April, 1995.


  THE COMMON SEAL OF
  READING & BATES (A)
  PTY. LTD. was hereunto
  affixed by authority of
  the Board of Directors
  in the presence of:


  _________________________
  T. W. Nagle, Director

  _________________________
  W. K. Hillin, Secretary
<PAGE>
                                                                 EXHIBIT G-1
                                                     TO AMENDED AND RESTATED
                                                   CREDIT FACILITY AGREEMENT


      ASSIGNMENT OF DRILLING CONTRACT REVENUES AND EARNINGS


      1.   READING AND  BATES  BORNEO DRILLING  CO.,  LTD.,   a  corporation
organized and existing under the laws  of the State of Oklahoma (hereinafter
called the "Assignor"), in consideration of  Ten Dollars (USD  10.00) lawful
money of  the United  States   of  America,  and  other  good  and  valuable
consideration, the  receipt and sufficiency of which is hereby acknowledged,
has granted, sold, assigned, transferred and set over and by this instrument
does grant, sell, assign, transfer and set over unto Bank One, Texas,   N.A.
its  successors,  and assigns (collectively the "Assignee"), as trustee  for
INTERNATIONALE  NEDERLANDEN BANK, N.V. (the "Lender"), to the Assignee's own
proper  use  and  benefit,  and  does  hereby  grant the Assignee a security
interest  as  security  for  all amounts due and owing under the Amended and
Restated Credit Facility Agreement dated as of April __, 1995 (the "Restated
Credit Agreement")  among  the Assignor, the  other Borrowers listed therein
and the Lender, in all of the Assignor's right, title and interest in and to
(i) all day rate payments, freights, charter hire and any other moneys earned
and to be earned,  due  or  to  become  due or paid or payable to, or for the
account  of the Assignor, of  whatsoever nature, arising out  of any drilling
contracts or as a result of the ownership, chartering and other operations of
any kind whatsoever  by the  Assignor  or its  agent of  the Panamanian  flag
drilling  barge CHARLEY GRAVES,  Official No. 6618-76-B (the "Vessel"),  (ii)
all moneys and  claims for  moneys due and to become  due to the Assignor and
all claims for  damages arising  out of  the breach  of any  and all  present
or  future drilling contracts, charter parties, and operations  of every kind
whatsoever  of the Vessel  and in and  to any  and all claims  and causes  of
action for money, loss or damages that may accrue  or belong to the Assignor,
its successors, or assigns, arising out  of or in any way connected  with any
and all present and future requisitions, drilling  contracts, charter parties,
and other  operations of the Vessel of any  kind whatsoever, (iii) all moneys
and claims  for moneys due and to become  due to the Assignor, and all claims
for damages  in  respect of  the  actual or  constructive  total loss  of  or
requisition of use of or title to any Vessel and (iv)  any proceeds of any of
the foregoing.

      2.    The Assignor covenants that it  will have all day  rate payments,
charter hire, earnings  and other moneys described in Section 1(i)-(iv) above
hereby  assigned paid  promptly  to  an account  in  Assignor's  name to  the
Lender's South East Branch office  in Amsterdam, The Netherlands  pursuant to
the written  instructions of  the Assignee.   After  an Event  of Default  as
defined in  the  Restated Credit  Agreement  occurs  and is  continuing,  the
Assignor  will,  upon the  request  of  the Assignee,  write  letters to  the
Assignor's agents  and representatives into  whose hands or  control may come
any earnings  and moneys and  other security hereby  assigned, informing each
such addressee of  this Assignment and  instructing such  addressee to  remit
promptly to  the Assignee  or as  designated by  the Assignee,  all day  rate
payments,  charter  hire,  earnings and  moneys  and  other  security  hereby
assigned  which  may  come  into the  addressee's  hands  or  control and  to
continue  to  make such  remittances  until such  time as  the  addressee may
receive written  notice  or instructions  to  the  contrary direct  from  the
Assignee.   The Assignor further  covenants that it  will instruct  each such
addressee to acknowledge  directly to the Assignee receipt of each Assignor's
letter of notification  and the instructions.   Any sum in respect  of moneys
assigned hereunder  which  is  in the  hands  of  any Assignor's  agents  and
representatives referred to above,  after an Event  of Default as defined  in
the Restated  Credit Agreement occurs and  is continuing, shall  be deemed to
have been received by them for the use and on behalf of the Lender. 

      3.    Any  sums  recoverable hereunder  after  an Event  of  Default as
defined  in the Restated Credit  Agreement occurs and  is continuing shall be
payable in accordance  with Article  II, Section 11  of the  Mortgage on  the
Vessel described  in the Restated  Credit Agreement (the  "Mortgage") and any
moneys received by  the Assignee hereunder shall  be held by the  Assignee in
trust  to be  applied in  accordance  with Section  11 of  Article II  of the
Mortgage.

      4.    It  is expressly  agreed that  anything herein  contained to  the
contrary notwithstanding, the Assignee shall have no  obligation or liability
under any  drilling contract or charter party by  reason of or arising out of
this  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  any drilling contract or charter party 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 may have  been assigned
to it or to which it may be entitled to hereunder at any time or times.

      5.    The Assignor  hereby covenants with the  Assignee for the benefit
of  the  Lender  that  it will  pay  to  the Assignee  on  demand  all moneys
whatsoever  which the Assignee or the  Lender shall or may  expend, be put to
or become liable for, in or about the protection, maintenance or  enforcement
of the security  created by this  Assignment or in or  about the exercise  by
the Assignee or the  Lender of any of the powers  vested in it or them  under
the Mortgage  or  hereunder  together  with  interest  thereon  at  the  rate
provided for in  Section 9.3 of the  Restated Credit Agreement from  the date
when such  moneys were expended by the Assignee or  the Lender until the date
of actual receipt, whether before or after any relevant judgment.

      6.    The Assignor does hereby constitute  the Assignee, 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  moneys,  claims,
property  and  rights  hereby  assigned,  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.

      7.    The  powers and  authority granted  to the  Assignee  herein have
been  given for  a  valuable consideration  and  are  hereby declared  to  be
irrevocable, until  all amounts due  under the Restated  Credit Agreement are
paid in full.

      8.    The Assignor agrees that  at any time and from time to time, upon
the  written 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 deem desirable in  obtaining the full benefits of
this Assignment and of the rights and powers herein granted.

      9.    The Assignor  does hereby warrant  and represent that  it has not
assigned or pledged,  and hereby covenants  that, without  the prior  written
consent thereto of the  Assignee, so long as this 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 right or this Assignment.

      10.   THIS  AGREEMENT SHALL BE GOVERNED  BY AND CONSTRUED IN ACCORDANCE
WITH THE INTERNAL  LAWS OF THE STATE  OF NEW YORK AND  MAY NOT BE AMENDED  OR
CHANGED EXCEPT BY AN INSTRUMENT IN WRITING.

      11.   All  notices  or other  communications which  are required  to be
made to the Assignee hereunder shall be  made by postage prepaid letter or by
telefax, confirmed by letter, to:

            BANK ONE, TEXAS, N.A.
                  AS TRUSTEE
            910 Travis, 6th Floor
            Houston, Texas 77002
            Attention:  Roark Ashie
            Telefax No.:  (713) 751-6806

or  at  such other  address as  may  have been  furnished  in writing  by the
Assignee.

      12.   The Assignor  agrees that the  Assignee may execute  and file any
financing statements or papers or similar purpose or  effect relating to this
Assignment.

      IN WITNESS WHEREOF,  the Assignor has caused this Assignment to be duly
executed this       day of April, 1995.


                                    READING AND BATES BORNEO DRILLING
                                      CO., LTD.


                                    By:  ______________________________
                                         Name:  T. W. Nagle
                                         Title: Vice President and
                                                 Treasurer



<PAGE>
                                                               EXHIBIT G-2
                                                   TO AMENDED AND RESTATED
                                                 CREDIT FACILITY AGREEMENT


             ASSIGNMENT OF DRILLING CONTRACT REVENUES AND EARNINGS


              1.    READING & BATES (A) PTY., LTD., a corporation organized
  and  existing  under  the  laws  of  Australia  (hereinafter  called  the
  "Assignor"),  in consideration of Ten Dollars (USD 10.00) lawful money of
  the  United States of America, and other good and valuable consideration,
  the receipt and sufficiency of which is hereby acknowledged, has granted,
  sold,  assigned, transferred  and set  over and  by this  instrument does
  grant, sell, assign, transfer and set over unto Bank One, Texas, N.A. its
  successors,  and assigns  (collectively the  "Assignee"), as  trustee for
  INTERNATIONALE NEDERLANDEN  BANK, N.V. (the "Lender"),  to the Assignee's
  own proper use and benefit, and does hereby grant the Assignee a security
  interest  as security for all amounts due and owing under the Amended and
  Restated  Credit Facility  Agreement  dated as  of  April 27,  1995  (the
  "Restated  Credit Agreement")  among  the Assignor,  the  other Borrowers
  listed  therein and the Lender, in all of the Assignor's right, title and
  interest in and to (i) all day rate payments,  freights, charter hire and
  any other moneys earned and to be earned, due or to become due or paid or
  payable to, or  for the  account of the  Assignor, of whatsoever  nature,
  arising out  of any drilling contracts  or as a result  of the ownership,
  chartering and other operations of any kind whatsoever by the Assignor or
  its  agent of  the  Australian flag  drilling  barge RON  TAPPMEYER,  ex.
  Official No. 597497 (the "Vessel"), (ii) all moneys and claims for moneys
  due and to become due to the Assignor and all claims  for damages arising
  out of  the breach of any  and all present or  future drilling contracts,
  charter  parties, and operations  of every kind whatsoever  of the Vessel
  and in and to any and all claims and causes of action for  money, loss or
  damages  that may accrue  or belong to  the Assignor, its  successors, or
  assigns, arising out of or in any way connected with  any and all present
  and future  requisitions, drilling contracts, charter  parties, and other
  operations of  the Vessel of  any kind  whatsoever, (iii) all  moneys and
  claims for  moneys due and to become due to  the Assignor, and all claims
  for damages  in respect of  the actual or  constructive total  loss of or
  requisition of use of or title to any Vessel and (iv) any proceeds of any
  of the foregoing.

        2.    The  Assignor  covenants  that  it  will have  all  day  rate
  payments, charter hire,  earnings and other  moneys described in  Section
  1(i)-(iv) above hereby assigned paid promptly to an account in Assignor's
  name  to  the  Lender's  South  East  Branch  office  in  Amsterdam,  The
  Netherlands  pursuant to the written instructions of the Assignee.  After
  an  Event of Default as  defined in the Restated  Credit Agreement occurs
  and is  continuing, the Assignor will, upon the  request of the Assignee,
  write  letters to  the Assignor's agents  and representatives  into whose
  hands or  control may  come any  earnings and  moneys and other  security
  hereby assigned,  informing each  such addressee  of this  Assignment and
  instructing  such addressee  to  remit promptly  to  the Assignee  or  as
  designated by the Assignee, all day rate payments, charter hire, earnings
  and moneys  and other security  hereby assigned which  may come  into the
  addressee's hands  or control and  to continue to  make such  remittances
  until   such  time  as  the  addressee  may  receive  written  notice  or
  instructions  to the  contrary direct  from the  Assignee.   The Assignor
  further  covenants   that  it  will  instruct  each   such  addressee  to
  acknowledge directly to the Assignee receipt of each Assignor's letter of
  notification and the instructions.  Any sum in respect of moneys assigned
  hereunder   which  is  in   the  hands  of  any   Assignor's  agents  and
  representatives referred to  above, after an Event of Default  as defined
  in  the  Restated Credit  Agreement  occurs and  is continuing,  shall be
  deemed  to have been received  by them for  the use and on  behalf of the
  Lender.

        3.    Any  sums recoverable hereunder after  an Event of Default as
  defined in the  Restated Credit Agreement occurs and is  continuing shall
  be payable in accordance with  Article II, Section 11 of the  Mortgage on
  the Vessel described  in the Restated  Credit Agreement (the  "Mortgage")
  and any  moneys received by the  Assignee hereunder shall be  held by the
  Assignee  in trust to be applied in accordance with Section 11 of Article
  II of the Mortgage.

        4.    It is expressly agreed that anything herein contained to  the
  contrary  notwithstanding,  the  Assignee  shall  have no  obligation  or
  liability under any  drilling contract or  charter party by reason  of or
  arising out  of this  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 any  drilling contract or charter party  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 may have  been assigned to  it or to  which it  may be
  entitled to hereunder at any time or times.

        5.    The  Assignor  hereby covenants  with  the  Assignee for  the
  benefit of the  Lender that  it will pay  to the Assignee  on demand  all
  moneys whatsoever which  the Assignee or the Lender  shall or may expend,
  be put to or become  liable for, in or about the  protection, maintenance
  or enforcement of the security created by this Assignment  or in or about
  the exercise by the Assignee or the Lender of any of the powers vested in
  it or them under the Mortgage or hereunder together with interest thereon
  at the rate provided for in Section 9.3 of  the Restated Credit Agreement
  from  the date  when such  moneys were  expended by  the Assignee  or the
  Lender  until the date  of actual  receipt, whether  before or  after any
  relevant judgment.

        6.    The  Assignor  does  hereby  constitute  the   Assignee,  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 moneys,  claims, property and rights hereby assigned,  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.

        7.    The powers and authority  granted to the Assignee herein have
  been given  for a valuable  consideration and are  hereby declared  to be
  irrevocable, until  all amounts due  under the Restated  Credit Agreement
  are paid in full.

        8.    The Assignor agrees that at any  time and from time to  time,
  upon the written 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 deem desirable in obtaining the
  full benefits  of this  Assignment and  of the  rights and  powers herein
  granted.

        9.    The  Assignor does hereby  warrant and represent  that it has
  not assigned  or pledged, and  hereby covenants that,  without the  prior
  written consent thereto of the Assignee, so long as this 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 right or this Assignment.

        10.   THIS  AGREEMENT  SHALL  BE   GOVERNED  BY  AND  CONSTRUED  IN
  ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE OF NEW YORK AND MAY NOT BE
  AMENDED OR CHANGED EXCEPT BY AN INSTRUMENT IN WRITING.

        11.   All notices or other  communications which are required to be
  made to the Assignee hereunder shall be made by postage prepaid letter or
  by telefax, confirmed by letter, to:

              BANK ONE, TEXAS, N.A.
                    AS TRUSTEE
              910 Travis, 6th Floor 
              Houston, Texas 77002
              Attention:  Roark Ashie
              Telefax No.:  (713) 751-6806

  or  at such other address  as may have  been furnished in  writing by the
  Assignee.

        12.   The Assignor agrees  that the Assignee  may execute and  file
  any  financing statements or papers or similar purpose or effect relating
  to this Assignment.

        13.   In  accordance with  the  Corporations Law  of  the  State of
  Western Australia,  Commonwealth of  Australia, the Assignor  agrees that
  the  maximum prospective  liability secured by  this Assignment  is seven
  million four  hundred twenty  five thousand Australian  dollars, provided
  however  that this Section  13 shall  not limit the amount  secured by or
  recoverable  under this Assignment or any other Loan Document referred to
  in the Restated Credit Agreement.

        IN WITNESS WHEREOF,  the Assignor has caused this Assignment  to be
  duly executed this       day of April, 1995.


                                      READING & BATES (A) PTY., LTD.


                                      By:                              
                                      Name:                             
                                      Title:                             



                                                                EXHIBIT H-1
                                                    TO AMENDED AND RESTATED
                                                  CREDIT FACILITY AGREEMENT

 NMB BANK  Letterhead
 --------------------------------------------------------------------------
 NMB-Bank             Documentary Trade Dept.
 P. O. Box 1441         1000 Bk. Amsterdam              Irrevocable 
 Loc:  HE.04.01         Swift, NMBANL2A                 Documentary Credit
 Telex:  11402          Fax:   (31)205635818
                                                    Date:  28.MAR.91
                                                 Our Ref.: IA4154620 
 --------------------------------------------------------------------------
 ADVISING BANK:                            APPLICANT:
 NMB Bank New York                         Reading & Bates Drilling Co.
 Paying and Receiving Division             C/O NMB Bank
 125 East 57th Street                      Amsterdam Zuib Oost.Branch
 New York - N. Y. 10022-2101  U.S.A.       -081-
 --------------------------------------------------------------------------
 BENEFICIARY:
 Den Norkse Bank AS                         AMOUNT:  USD 5,000,000.00
 600 Fifth Avenue                           Expiry-Date:  30.APR.96
 New York, New York 10020                          BY PAYMENT
 USA                                               IN:  Amsterdam
 --------------------------------------------------------------------------
 ATTN. L/C DEPT  -  Marc Marciano   -  One of the Famous Four
 --------------------------------------------------------------------------
 TO:    Den Norske Bank AS
        600 Fifth Avenue
        New York, New York  10020

 Dear Sirs,

 We, NMB  Postbank Groep NV,  hereby issue this irrevocable  standby Letter
 of  Credit  No. IA4154620  in Favour of  Den Norske  Bank AS  (you or  the
 Beneficiary) by  order of  and for  the account  of  our customer, Reading
 and Bates Corporation (RBC)  in  an amount not to exceed USD  5,000,000.00
 (the credit amount).   This  standby Letter of  Credit is  being issued to
 you in  connection with  the term loan agreement dated as of June 20, 1990
 between  you  and  HRB  Rig  Corporation  (HRB)  (as  amended, modified or
 supplumented hereafter, the agreement).

 You are hereby irrevocably authorized to draw  from time to time hereunder
 an  amount not exceeding the credit amount to satisfy amounts then due and
 payable by HRB to you under  the terms of the agreement.
      
 This standby Letter  of  Credit is  effective  immediately and  expires on
 the  expiration date  (as hereinafter defined).

 You  may  demand  payment  of  all  or  a portion of the  credit amount by
 presentation at our counters of  your duly tested telex/swift certificate,
 in the form of Annex A to this credit.

 Which forms an integral part of NMB-Bank Letter of Credit Number:IA4154620

 Partial drawings are premitted, but drawings hereunder honored by us shall
 not, in  the aggregate, exceed the credit amount.

 Certificates  must  be  presented to us on or  before April 30, 1996  (the
 expiration  date)  or,  if  such  day  is  not  a  business  day, the next
 succeeding business day.

 Any  drawing  hereunder  shall  be  made  by duly  tested  telex  of swift
 addressed to NMB Postbank Group NV, Attention Documentary Trade Department,
 Amsterdam, The Netherlands, Telex No. 11402, Swift NMB ANL 2A, our Ref. No.
 IA4154620.

 We hereby agree that all drawings  strictly in  compliance with  the terms
 and conditions of  this Standby  Letter of  Credit will by duly honored if
 drawn  and  presented  at  our  counters  on  or before its expiration, as
 provided above.

 This Standby Letter of Credit shall be subject to the terms and provisions
 of   the  uniform  customs   and  practice  for   documentary credits (ICC
 Publication 400, 1983 Revision) of the  International Chamber of  Commerce.
 <PAGE>
 
      **********************************************************
                           ANNEX A
                   TO STANDBY LETTER OF CREDIT
                        NO. IA4154620
        STANDBY LETTER OF CREDIT DRAWDOWN CERTIFICATE

 NMB Postbank Groep NV
 Amsterdam
 The Netherlands
 Attention:       Documentary Trade Department
                  Your Standby Letter of Credit No. IA4154620

 We, Den Norske Bank AS, hereby certify to NMB Postbank Groep  NV (NMB) with
 reference  to the above mentioned Standby Letter of Credit issued by NMB in
 favour of the undersigned for the account of Reading and Bates Corporation,
 that as of  the date of this certificate,  there  is  due  and  payable  to 
 ourselves under the term loan agreement dated as of  June 20, 1990  between
 Den Norske Bank TAS and  HRB  after  any  required  demand  and  after  any
 applicable grace period of periods which remains.

 You are hereby instructed to remit the proceeds of this drawing as follows:

 IN WITNESS WHEREOF, THIS CERTIFICATE HAS BEEN EXECUTED THIS _______________
 DAY OF______________________, 19__.


                                                DEN NORSKE BANK AS


                                                BY:  ____________________
                                                     NAME________________
                                                     TITLE_______________

 Except  so  far  as  otherwise  expressly  stated this Letter of Credit is
 subject to "Uniform Customs and Practice  for Documentary Credits" (I.C.C.
 PUBL. NO. 400 - 1983 REVISION).  This is the operative  Credit Instrument.

 Yours Faithfully, 
<PAGE>
                                                                 EXHIBIT H-2
                                                     TO AMENDED AND RESTATED
                                                   CREDIT FACILITY AGREEMENT

   ING BANK Letterhead
   -------------------------------------------------------------------------
   INB Bank    DOCUMENTARY TRADE DEPT
   LOC:  FP.03.13    SWIFT:   INGBNL2A                             IMANEP
   TELEX: 11402      FAX:     (31)205635818                        KO66     

   P. O. BOX      1441     1000  BK  AMSTERDAM
   -----------------------------------------   AMSTERDAM  ,   14.JUN.93
   READING  +  BATES CORPORATION               PHONE:  020-563 5862/5855
   901 THREADNEEDLE SUITE 200                  OUR REF. NO.:  IA4357654
   0000  00    HOUSTON  TEXAS  77079           YOUR REF.NO.:
   -----------------------------------------   IMPORT LETTERS OF CREDIT (IA)

   AMOUNT                  EXPIRY DATE                   IN
   USD 2.000.000,00        18.MAY.95                     AMSTERDAM
                           BY PAYMENT
   DEAR SIRS,

   WE HERE  WITH CONFIRM  HAVING OPENED AN  IRREVOCABLE DOCUMENTARY  CREDIT
   UNDER NO. :  IA4357654
   IN  ACCORDANCE WITH YOUR "APPLICATION  FOR THE OPENING  OF A DOCUMENTARY
   CREDIT" DATED  :  08.JUN.93

   ATTACHED  PLEASE FIND  A COPY  OF  THE COMPLETE  TEXT OF  THE  LETTER OF
   CREDIT.

   UNLESS OTHERWISE STIPULATED  IN THE CONDITIONS OF THE  CREDIT WE WILL IN
   DUE TIME SETTLE  WITH YOU  OR CHARGES  AND COMMISSIONS  RELATED TO  THIS
   OPENING.

   FOR GOOD ORDER'S SAKE  PLEASE NOTE THAT (COPIES OF)  PRO-FORMA INVOICES,
   SALE-,  PURCHASE- AND/OR  OTHER AGREEMENTS OR  CONTRACTS, WHICH  YOU MAY
   HAVE SENT  TO US FOR  INFORMATION, DO  NOT FORM  PART OF  THE LETTER  OF
   CREDIT,  IRRESPECTIVE OF THE  FACT WHETHER OR  NOT REFERENCE  IS MADE TO
   SAME IN THE LETTER OF CREDIT.

   THIS  CREDIT IS  SUBJECT  TO  THE  'UNIFORM  CUSTOMS  AND  PRACTICE  FOR
   DOCUMENTARY CREDITS' (PUBL.NO.400   -  1983 REVISION), PUBLISHED  BY THE
   INTERNATIONAL CHAMBER OF COMMERCE IN PARIS.

   YOURS FAITHFULLY,

   INB Bank
<PAGE>
   ING BANK Letterhead
   ------------------------------------------------------------------------
   P. O. Box 1441                              Documentary Trade Department
   1000 BK  Amsterdam                          Swiftadress INGBNL2A
   The Netherlands                             Telex 11402

                                       Date              Our reference
                                       14 JUN 93         IA4357654          
   --------------------------------------- --------------------------------
   Advising bank                           Applicant

                                          READING & BATES CORP.
                                          901 THREADNEEDLE, SUITE 200
                                          HOUSTON, TEXAS  77079-2902
                                          U.S.A.
   --------------------------------------- --------------------------------
   Beneficiary                             Amount

   AMOCO ORIENT PETROLEUM COMPANY          USD.2.000.000, - 
   C/O AMOCO PRODUCTION COMPANY               Expiry-date
   501 WESTLAKE PARK BOULEVARD                18.05.95     BY PAYMENT
   P. O. BOX 3092, HOUSTON, TX 77253 USA   In AMSTERDAM    
   ------------------------------------------------------------------------

   WE HEREBY OPEN OUR  IRREVOCABLE STAND-BY LETTER OF CREDIT  NO. IA4357654
   AVAILABLE  FOR PAYMENT  AT SIGHT  AGAINST PRESENTATION OF  THE FOLLOWING
   DRAFT(S) AND DOCUMENTS:  (SEE BELOW)

   COVERING:   THE FLOATING PRODUCTION  SYSTEM GENERAL CONTRACTOR AGREEMENT
               DATED  AS OF JUNE 4, 1993, BETWEEN YOU AND APPLICANT ("RDB")
               (AS AMENDED, THE "AGREEMENT")

   DOCUMENTS:

   A)   YOUR DRAFT DRAWN ON ISSUING BANK AND STATING  :DRAWN UNDER STAND-BY
        LETTER OF CREDIT NO.IA4357654 

   ACCOMPANIED BY:
   B)   YOUR SIGNED CERTIFICATE AS PER EXHIBIT ATTACHED.

   PARTIAL DRAWINGS ARE PERMITTED

   UPON  RECEIPT OF CREDIT CONFORM DOCUMENTS AT OUR COUNTERS WE SHALL REMIT
   PROCEEDS AS PER YOUR INSTRUCTIONS.

   THIS  STAND-BY LETTER  OF CREDIT  IS SUBJECT  TO THE  UNIFORM RULES  AND
   USANCES FOR DOCUMENTARY CREDIT I.C.C.  PUBL.NO.400  (1983 REVISION)


   ATTACHED:   EXHIBIT  -  CERTIFICATE. 
<PAGE>
 

   CERTIFICATE

   Internationale Nederlanden Bank N.V.
   Amsterdam - The Netherlands

   Attn:   Documentary Trade Dept.
           your Standby Letter of Credit No.____________________

   We,  Amoco  Orient  Petroleum   Company  ("Amoco"),  hereby  certify  to
   Internationale Nederlanden Bank N.V. ("ING") with reference to the Above
   mentioned Standby Letter of Credit  issued by ING in favor of  ourselves
   for the account of Reading & Bates Corporation, that:

   1)   As of  the date of  this certificate, there  is due and  payable to
   ourselves  under  the  Floating  Production  System  General  Contractor
   Agreement (as amended, from time to time, the "Agreement") between Amoco
   and Reading & Bates Development Co. ("RBD") the sum of USD $____________
   payable  by  RBD  as a result of a default by RBD under the terms of the
   Agreement.

   2)   You are   hereby   instructed  to   remit the   proceeds   of  this
   drawing  as  follows: __________________________________________________
                                                                           

   In witness whereof, this certificate has been executed this_____________
   day of _________________,  199__.


   Amoco Orient Petroleum Company

   By:
        Name:_____________________________
        Title:____________________________
<PAGE>
                                                                EXHIBIT H-3
                                                    TO AMENDED AND RESTATED
                                                  CREDIT FACILITY AGREEMENT

    ING  BANK  Letterhead


    Jakarta, November 7, 1994





    UNOCAL INDONESIA Ltd.
    5th Floor Ratu Plaza
    Jl. Jend. Sudirman Senayan
    JAKARTA 10002


    BANK GUARANTEE (BANK GARANSI)
    No. BG 034.030/156
    ING BANK Amsterdam counter guarantee 940247066/44581/TB



    We,  Internationale  Nederlanden   Bank  (Indonesia)  located   at  New
    Summitmas Tower  14th  floor  Jl. Jend.  Sudirman  Kav  61-62,  Jakarta
    Indonesia,  hereinafter designated  as the  bank, upon  the request  of
    Reading  and Bates Exploration Co. domiciled at 901 Threadneedle, Suite
    200, Houston,  Texas  77079,  hereinafter designated  as the guaranteed
    party for the benefit of Unocal Indonesia Ltd., domiciled at 5th floor,
    Ratu  Plaza, Jl. Jend. Sudirman,  Senayan, Jakarta   10002, hereinafter
    designated as the obligee, state hereby:

    In  conjunction with the  importation of group II  of operational goods
    into  the  Indonesian  customs  territory  by  using  the  facility  of
    Pertamina and/or obligee relating to the implementation of contract:
    tender   assisted  platform   drilling   RIG   No.  291/00172/JS90.0008
    hereinafter designated as contract,

    By the guaranteed party, in accordance with the following:

<TABLE>
<CAPTION>
    INVOICE NO + DATE                   P.I.U.D. NO. + DATE
    <S>                                 <C>
    UBN-0431/91 November 22, 1991       007/570/0271 November 30, 1991
    UBN-0199/92 August 19, 1992         007/570/0432 September 15, 1992
    UBN-0208/92 August 12, 1992         007/570/0432 September 15, 1992
    UBN-0273/92 October 14, 1992        007/570/0470 October 27, 1992
    UBN-0309/92 November 12, 1992       007/570/0490 December 8, 1992
    UBN-0317/92 November 16, 1992       007/570/0497 December 8, 1992
    UBN-0322/92 November 18, 1992       007/570/0501 December 9, 1992
    UBN-0329/92 December 10, 1992       007/570/0513 December 31, 1992
    UBN-0330/92 December 10, 1992       007/570/0512 December 31, 1992
    UBN-0344/92 December 16, 1992       007/570/0511 December 11, 1992 
</TABLE>

    ING BANK  Letterhead

    Therefore bank, upon  first request in writing from obligee will pay to
    obligee an amount up to Rp.3.375.970.148.-(rupiah : three billion three
    hundred seventy five million nine hundred seventy  thousand one hundred
    forty  eight and no/00) which will be utilized to settle the import and
    customs duty liable upon the said goods of group II, whenever : 

    1.    The contract between the guaranteed party and the obligee expired
          and is not being extended or renewed, and/or
    2.    Have  not been granted  the approval for permit  or its extension
          for the  utility of  the said goods  of Group  II by the  Dir Gen
          Migas of  the Dept  Mining  and Energy  and/or  other  authorized
          party, where the guaranteed party :
          1.    Fails  in carrying  out his obligation to  be re-export the
                said goods of Group II, and/or
          2.    Unable to  provide the evidence/supportive  documents as to
                state  the  guaranteed  party had  already  re-exported the
                Group II goods out of Indonesian customs territory.

    Referring to article 1832 of the Indonesian Civil Code, bank  expressly
    releases  its privilege  to  claim  for confiscation  and sale  of  the
    properties  belonged to  the guaranteed  party, to  settle the  debt as
    stipulated under the article 1831 of the Indonesian civil code.

    This  guarantee shall  remain valid  until 30  days after  the contract
    between the guaranteed party and the obligee expired, or until December
    13, 1995 at the latest.

    Claim upon  this bank  guarantee by  obligee shall  be made  in writing
    addressed to the  bank after the guanteed  party failed to  comply with
    the  terms and conditions of said contract and shall be submitted in no
    later than  14 days at the  maximum after the  expiration of this  bank
    guarantee.

    This guarantee shall waive whenever :
    1.    The guaranteed  party has  fulfilled his obligation  to re-export
          all  the guaranteed goods out of the  country and able to provide
          the related supporting documents although the
          validity of this bank guarantee has not been expired.
    2.    The  claim  period expired  without  any  claim  being  filed  by
          obligee.
    3.    Statement of the waiver of the bank guarantee or statement of the
          settlement of the bank guarantee prior to the expiry date  of the
          bank guarantee, jointly signed by the obligee and  the guaranteed
          party in a document which bears sufficient stamp duty.   Whenever
          the bank  guarantee is fulfilled  and/no longer  valid, this bank
          guarantee shall be returned to the bank.

    For  the issuance  of  this  bank guarantee  and all  the  consequences
    arising  thereof,  the  guarantor  has  chosen  a  permanent  judicvial
    domicile at Kantor Panitera  Pengadilan Negeri (office of the registrar
    of the state court) in Jakarta Selatan. 

    Yours truly, 


    ING  BANK  Letterhead


    Jakarta, April 17, 1995


    UNOCAL INDONESIA Ltd.
    5th Floor Ratu Plaza
    Jl. Jend. Sudirman Senayan
    JAKARTA 10002


               AMENDMENT BANK GUARANTEE (BANK GARANSI)
                         No. BG 034.030/0156
        ING BANK Amsterdam counter guarantee 940247066/44581/TB

    We amend the above mentioned guarantee as follow :

     - the amount of the bank guarantee is increased up to  the new maximum
    of IDR  3,403,274,637.- (in words  : three billion  four hundred  three
    million  two hundred  seventy four  thousand six  hundred thirty  seven
    rupiah)
     - add the following invoice and PIUD number date to the existing :
    UBN-0193/94 dated June 22, 1994 007/570/1032 dated June 28, 1994

    All other terms and conditions remain unchanged.


    Yours truly, 



                                                                   EXHIBIT I
                                                     TO AMENDED AND RESTATED
                                                   CREDIT FACILITY AGREEMENT


                             FIRST NAVAL MORTGAGE

                                 on the Vessel

                                CHARLEY GRAVES

                                  executed by

                  Reading and Bates Borneo Drilling Co., Ltd.

                                 as Shipowner

                                      to

                       Bank One, Texas, N.A. as Trustee

                                 as Mortgagee


            FIRST  NAVAL MORTGAGE dated April __, 1995 by Reading and Bates
  Borneo Drilling Co., Ltd., a corporation organized and existing under the
  laws  of the State of Oklahoma (the "Shipowner") to Bank One, Texas, N.A.
  a national  banking association organized  under the laws  of the  United
  States, as Trustee, (the "Mortgagee").  
            FIRST:  The Shipowner represents, warrants and covenants that: 

            A.   The Shipowner is the sole owner of the whole of the vessel
  CHARLEY GRAVES,  duly documented in the  name of the  Shipowner under the
  laws and flag of  the Republic of Panama  Patente No. 6618-76-B,  bearing
  international  call letters  HP-3275,  of  5716 gross  tonnage, 4291  net
  tonnage, 300 feet in length, 70 feet in width and 154 feet in height (the
  "Vessel"). 

            B.  The Shipowner  and the other Borrowers named  in the Credit
  Facility  Agreement  have entered  into  an  Amended and  Restated Credit
  Facility Agreement (the "Credit Facility Agreement") dated April __, 1995
  with  Internationale  Nederlanden  Bank,  N.V.  (formerly  known  as  NMB
  Postbank  Groep  N.V.), a  corporation  organized under  the laws  of the
  Netherlands, (the "Lender") providing  for Advances to, and the  issuance
  of  letters of credit  for the  accounts of, the Shipowner  and the other
  Borrowers  named  in the  Credit  Facility Agreement  up to  an aggregate
  amount  of USD  65,000,000 (the  "Commitment").  The  form of  the Credit
  Facility Agreement is set forth below. 

            Pursuant to the  Credit Facility Agreement,  the Shipowner  and
  the  Borrowers have executed and delivered to the Lender their promissory
  notes  in the aggregate  amount of USD  65,000,000 (the  "Notes") and are
  justly indebted to the Mortgagee therefor. 

            The  Notes, in  the form  of Exhibits  A-1  through A-5  of the
  Credit Facility  Agreement evidence the  obligation of the  Shipowner and
  the other Borrowers under the Credit Facility Agreement. 

            C.   By  Assignment, Assumption  and Amendment  No. 2  of Trust
  Indenture dated  April __, 1995  (the "Assignment of  Trust"), among  the
  Shipowner, the other Borrowers and the Mortgagee, the Mortgagee has among
  other  things assumed the  rights and obligations of  Texas Commerce Bank
  National Association ("TCB") under the terms of the Trust Indenture dated
  March  29,  1991, as  amended (as  amended  by Amendment  No. 1  to Trust
  Indenture and by the Assignment of Trust, the "Trust Indenture"), and has
  thereby agreed to  act as Trustee on  behalf of the  holder of the  Notes
  with respect to this Mortgage.

            D.   The Shipowner has heretofore agreed to execute and deliver
  this First Naval Mortgage  (the "Mortgage") on the  Vessel to secure  the
  Shipowner's indebtedness pursuant to the Credit Facility Agreement in the
  original  principal amount of USD 65,000,000 and interest thereon and all
  other amounts payable hereunder and to secure as well the performance and
  observance of all  agreements, covenants and  conditions combined  herein
  and contained in  the Credit Facility Agreement, Trust Indenture  and the
  Notes. 

            SECOND:  In consideration of the premises and of other good and
  valuable consideration,  the receipt whereof is  hereby acknowledged, and
  in order to secure the payment of the indebtedness pursuant to the Credit
  Facility  Agreement, Trust Indenture and the Notes according to the terms
  thereof and the payment of  all other sums that may hereafter  be secured
  by   this  Mortgage  in  accordance  with  the  terms  hereof  (all  such
  indebtedness,  interest  and  other  sums   being  hereinafter  sometimes
  collectively called the  "Indebtedness hereby secured") and  to secure as
  well the  performance and  observance of  all agreements,  covenants  and
  conditions contained herein and contained in the  Trust Indenture, Credit
  Facility Agreement, including the Notes contained therein, the  Shipowner
  hereby  constitutes  a  first  naval  mortgage  in  accordance  with  the
  provisions of Chapter V  Title IV of Book Second of the  Code of Commerce
  and other pertinent legislation of the Republic of Panama in favor of the
  Mortgagee, its successors and assigns, upon one hundred percent (100%) of
  the  Vessel, together with all of the boilers, engines, machinery, masts,
  spars, boats, anchors, cables, chains, rigging, tackle, capstans,  outfit
  tools,  pumps  and  pumping  equipment,  apparel,  furniture   equipment,
  drilling equipment,  drill pipes, collars, racking,  housing, spare parts
  and   supporting  inventory,  vehicles  and  living  quarters  (excluding
  equipment aboard the Vessel which is not owned by  the Shipowner) and all
  other appurtenances to said Vessel appertaining or belonging, whether now
  owned or  hereafter acquired, whether on  board or not, and  also any and
  all  additions,   improvements  and  replacements   in  general  effected
  subsequently on  or to the Vessel,  or any part  thereof, or appurtenance
  thereto; 

            PROVIDED, HOWEVER,  and these presents are  upon the condition,
  if the Shipowner or  its successors or assigns  shall pay or cause to  be
  paid to  the Mortgagee the Indebtedness  hereby secured, as  and when the
  same shall  become due and payable  in accordance with the  terms of this
  Mortgage, the Notes and of the Credit Facility  Agreement, and shall duly
  perform the agreements, covenants and conditions herein and in the Credit
  Facility Agreement  contained, then this  Mortgage and the  rights hereby
  granted shall  cease and be void,  otherwise to remain in  full force and
  effect. 

            THIRD:  The Shipowner certifies that a true form  of the Credit 
  Facility Agreement  (including the  Notes) and  the Trust  Indenture  are
  attached to this Mortgage as  Exhibits A and B, respectively and that the
  terms of the Credit Facility Agreement, the Notes and the Trust Indenture
  are incorporated by reference into this Mortgage and form a part hereof. 

            FOURTH:   The  Shipowner  represents,  warrants, covenants  and
  agrees with the Mortgagee as follows: 

                                   ARTICLE I

                          Covenants of the Shipowner

            Section  1.   The Shipowner  agrees that  it will  promptly and
  faithfully  pay or cause  to be paid the  Indebtedness hereby secured and
  that it will perform and observe all agreements, covenants and conditions
  express or implied contained herein and in the Credit Facility Agreement.

            Section  2.    The  Shipowner  is duly  organized  and  validly
  existing  as a corporation under the laws of the State of Oklahoma; it is
  duly authorized to mortgage the Vessel; all corporate action necessary as
  required  by law for the execution and delivery of this Mortgage has been
  duly  and effectively  taken; and  the Mortgage  and the  Credit Facility
  Agreement  are and will be valid obligations of the Shipowner enforceable
  in accordance with their terms. 

            Section  3.   The  Shipowner  lawfully  owns  and  is  lawfully
  possessed  of the  Vessel free  from any  lien or  encumbrance whatsoever
  (except for  the lien of this Mortgage and any other lien in favor of the
  Mortgagee, liens for current crew's wages, tort  liens adequately covered
  by insurance, and liens  arising by operation of law as the result of the
  furnishing of necessaries  for the Vessel  for which payment  is not  yet
  overdue) and will warrant and defend the title and possession thereto and
  to every part thereof for the benefit of the Mortgagee against the claims
  and demands of all persons whomsoever. 

            Section 4.   The Shipowner will comply with and  satisfy all of
  the provisions  of applicable law of  the Republic of Panama  in order to
  establish and maintain this Mortgage as a first naval mortgage thereunder
  upon the Vessel and upon all renewals, replacements and improvements made
  in or to the same. 

            Section 5.  The  Shipowner will not cause or permit  the Vessel
  to be operated in any manner contrary to applicable law and the Shipowner
  will not  engage in any unlawful  trade or violate any  applicable law or
  carry  any cargo  that will  unreasonably expose  the Vessel  to penalty,
  forfeiture or capture  and will not do,  or suffer or permit  to be done,
  anything  which can  or may  injuriously affect  the registration  of the
  Vessel  under the laws  and regulations  of Panama and will  at all times
  keep the Vessel duly documented thereunder. 

            Section 6.  The Shipowner will  pay and discharge when due  and
  payable, from time to time, all taxes, assessments, governmental charges,
  fines  and  penalties lawfully  imposed  on  the  Vessel  or  any  income
  therefrom; provided, however, that the Shipowner shall not be required to
  pay  and discharge any such tax, assessment, governmental charge, fine or
  penalty so long as the  legality thereof shall be contested in good faith
  and by appropriate proceedings or other acts and the  Shipowner shall set
  aside  on its  books adequate  reserves  with respect  to  any such  tax,
  assessment,  charge, fine or  penalty so contested, and  the Vessel shall
  not have been arrested or detained therefor.

            Section 7.  Neither the Shipowner, any charterer, the Master of
  the Vessel nor  any other person  has or shall have  any right, power  or
  authority to  create, incur or permit  to be placed  or imposed upon  the
  Vessel, its  freights, profits or  hire, any lien  whatsoever other  than
  this Mortgage, and liens for crew's wages and salvage. 

            Section 8.   The  Shipowner will  place, and  at all  times and
  places will retain, a properly  certified copy of this Mortgage  on board
  the Vessel  with her papers and  will cause such  certified copy and  the
  Vessel's  marine document to  be exhibited to any  and all persons having
  business therewith which might give  rise to any lien thereon other  than
  liens for  crew's wages  and salvage,  and to  any representative  of the
  Mortgagee; and  will 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 reading as follows: 

                              "NOTICE OF MORTGAGE

            This  Vessel is owned by Reading and Bates Borneo Drilling Co.,
  Ltd.  ("Owner") and  subject to  a First  Naval Mortgage  ("Mortgage") in
  favor of Bank One, Texas, N.A. as Trustee, Mortgagee.  Under the terms of
  said Mortgage neither the Owner, any Charterer, the Master of this Vessel
  nor any other person has  any right, power or authority to  create, incur
  or permit to be placed or imposed  or continued upon this Vessel any lien
  whatsoever  other than  said  Mortgage and  liens  for crew's  wages  and
  salvage." 

            Section 9.  Except for the lien of this Mortgage, the Shipowner
  will not  suffer to be continued  any lien, encumbrance or  charge on the
  Vessel,  and in due course and in any  event within thirty days after the
  same becomes due and payable will  pay or cause to be discharged or  make
  adequate provision  for the satisfaction  or discharge of  all claims  or
  demands,  or will cause the Vessel to  be released or discharged from any
  lien, encumbrance or charge therefor. 

            Section 10.   If  a libel  or complaint  be filed  against  the
  Vessel  or the Vessel  be otherwise attached,  levied upon  or taken into
  custody  or sequestered by virtue of any legal proceeding in any court or
  by  a government or  other authority, the Shipowner  will promptly notify
  the  Mortgagee  thereof  by  telex, cable  or  telegram,  as appropriate,
  confirmed  by letter, at  its office,  and within  thirty (30)  days will
  cause the  Vessel to be released  and all liens  thereon (other than  the
  lien  of this  Mortgage) to  be discharged and  will promptly  notify the
  Mortgagee thereof in the manner aforesaid. 

            Section 11.   (a)  The Shipowner will at  all times and without
  cost or  expense to the Mortgagee  maintain and preserve, or  cause to be
  maintained and preserved, the Vessel in good running order and repair, so
  that  the Vessel  shall be,  insofar as  due diligence  can make  her so,
  tight,  staunch, strong  and well  and sufficiently  tackled, apparelled,
  furnished,  equipped and in every respect seaworthy and in good operating
  condition; and  will keep the  Vessel, or  cause her to  be kept in  such
  condition  as will entitle  her to the highest  classification and rating 
  for  vessels of the  same age, type  and use with the  American Bureau of
  Shipping,  or the equivalent rating of  another classification society of
  like  standing acceptable  to  the Mortgagee,  and  will furnish  to  the
  Mortgagee  a certificate by such  register or classification society that
  such classification is maintained,  promptly after the receipt thereof by
  the Shipowner.   The Vessel shall, and  the Shipowner covenants  that she
  will,  at  all times  comply  with  all  applicable  laws,  treaties  and
  conventions and rules and  regulations issued thereunder, and shall  have
  on  board  as  and  when  required  thereby  valid  certificates  showing
  compliance therewith.  The Shipowner will not make, or permit to be made,
  any substantial change  in the structure, type or speed  of the Vessel or
  change in her  rig, which causes a  decrease in the value  of the Vessel,
  without first receiving  the written approval  thereof by the  Mortgagee.
  In case of such substantial changes of the foregoing nature, which do not
  cause a decrease in the  value of the Vessel, the Shipowner  shall notify
  the Mortgagee of the changes. 

            (b)   The  Shipowner hereby  warrants and  represents  that the
  Vessel  is, on  the date  hereof, capable  of economic  operation without
  major repairs. 

            (c)   So  long as  any of  the  Indebtedness hereby  secured is
  outstanding,  the  Shipowner will  cause  the Vessel  to be  repaired and
  overhauled  in order to keep the Vessel  well maintained and in seaworthy
  condition. 

            (d)   The Shipowner  will give notice  to the Mortgagee  if the
  Vessel is put into the possession of  any yard for the purpose of repairs
  in an  amount exceeding or  likely to exceed  ten percent  of the insured
  total loss value at any time. 

            Section  12.  The Shipowner will at all reasonable times afford
  the Mortgagee or its authorized representatives  full and complete access
  to the Vessel during normal business hours  for the purpose of inspecting
  the Vessel and its cargoes and papers, and the Shipowner will deliver for
  inspection copies of such contracts and documents relating to the Vessel,
  whether  on  board  or  not, as  the  Mortgagee  may reasonably  request,
  provided  however,  that  (i)  non-public  information  obtained  by  the
  Mortgagee pursuant  to any  Loan Document concerning  the Shipowner,  the
  Vessel,  any  other assets  or  the  Shipowner's financial  condition and
  prospects shall be  kept confidential by the  Mortgagee subject, however,
  to  requests from the Lender, any applicable Governmental Agencies and to
  disclosures  of such  information  to  assignees  and  participants  (and
  potential  assignees and  participants) pursuant  to Section 19.8  of the
  Credit Facility  Agreement, unless  such non-governmental  parties  shall
  agree  prior  thereto to  be  bound  by  this Section  12  and  (ii)  any
  inspection of the Vessel, its  cargoes and papers shall be subject to the
  requirements  of  any   operators  of  the  Vessel  and   any  applicable
  Governmental Agencies. 

             Section 13.   The Shipowner  will not transfer  or change  the
  flag or  port of documentation of the Vessel  without the written consent
  of  the  Mortgagee first  had  and  obtained,  such  consent  not  to  be
  unreasonably withheld, and  any such written consent to any  one transfer
  or change of flag or port of documentation shall not be construed to be a
  waiver of this provision with respect to any subsequent proposed transfer
  or change of flag or port of documentation.  

            Section 14.  The Shipowner will not sell, mortgage, charter for
  a  period in  excess of  twelve (12)  months or  for a  period reasonably
  expected  to exceed  twelve  (12) months,  or  transfer the  Vessel,  nor
  assign, pledge  or hypothecate the freights, hires and/or income thereof,
  without the written consent of  the Mortgagee first had and obtained, and
  any  such  written consent  to  any one  sale, mortgage,  demise charter,
  transfer, assignment,  pledge or hypothecation shall not  be construed to
  be  a waiver of  this provision with  respect to  any subsequent proposed
  sale,   mortgage,  demise   charter,  transfer,  assignment,   pledge  or
  hypothecation.  Any  such sale, mortgage, demise charter, or  transfer of
  the Vessel  shall be subject to  the provisions of this  Mortgage and the
  lien hereof. 

            SECTION 15.  (a)   The Shipowner will, at its own expense, when
  and so long as this Mortgage shall  be outstanding, insure or cause to be
  insured the Vessel against the risks indicated below, in addition to such
  other  risks  which  should  be  covered  by  experienced,  prudent,  and
  responsible  companies engaged  in  the  offshore  contract  drilling  of
  hydrocarbons  in places and under conditions comparable to those in which
  the Vessel is  employed from time  to time and  possessing financial  and
  operating characteristics similar to the Borrowers  ("Similar Companies")
  in  accordance   with  the  usual  and  customary  practices  of  Similar
  Companies, and keep her  insured, in lawful money  of the United  States,
  for not  less than the  higher of (i) the  full commercial value  of such
  Vessel and (ii) the amount of coverage that would  be obtained by Similar
  Companies on such Vessel.  The Vessel 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 be on the  basis of
  "new for old" with no deduction for depreciation and cover marine and war
  risk  perils, on  hull  and machinery,  and shall  be  maintained in  the
  broadest forms available in the American or British insurance markets for
  vessels of the same type as the Vessel.  Such insurance shall not include
  a  deductible  or self-insured  retention  in excess  of USD  250,000 per
  occurrence.  The Shipowner shall also obtain such  workmen's compensation
  or longshoremen's and  harbor worker's insurance as shall be  required by
  applicable  law,  including  endorsements  for  Outer  Continental  Shelf
  operations, borrowed servant, voluntary compensation, and in rem  claims.
  In addition,  the Shipowner  shall, at  its own  expense, furnish  to the
  Mortgagee a mortgagee's  single interest policy (or shall cause  the hull
  and machine  insurance on the Vessel  to be endorsed to  afford breach of
  warranty coverage for the benefit of the Mortgagee) providing coverage in
  an amount  equal to at  least the  full commercial value  of the  Vessel.
  Such mortgagee's  interest insurance shall be maintained  in the broadest
  form available in the American or British markets for vessels of the same
  type as the Vessel through underwriters acceptable to the Mortgagee.  The
  Vessel shall not undertake any drilling operations, not carry any cargoes
  or proceed  into an area  then excluded by  trading warranties  under its
  marine or war risk policies (including protection and indemnity)  without
  obtaining  all 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  acceptable to  the  Mortgagee,  shall  contain
  conditions,   terms,  stipulations  and   insuring  covenants  reasonably
  satisfactory to the Mortgagee and shall be kept in  full force and effect
  by the Shipowner so long as this Mortgage shall be outstanding.  All such
  policies, binders and other interim insurance contracts shall be executed 
  and issued in  the name of the  Shipowner and shall provide that  loss be
  payable  to  the Mortgagee  for  distribution by  it  to  itself and  the
  Shipowner  as their interests  may appear.  Copies  of all such policies,
  binders and other interim insurance contracts shall be deposited with the
  Mortgagee.   The Shipowner  shall furnish to the  Mortgagee annually, not
  later than  December 31st, 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 Section
  15.

            (c)  In addition, the  Shipowner shall maintain or cause  to be
  maintained  protection and  indemnity insurance,  including  coverage for
  contractual   liability,  contractual  and  legal   wreck  removal,  crew
  coverage, excess  collision, salvage, general average,  care, custody and
  control coverage  through underwriters or associations  acceptable to the
  Mortgagee in an amount equal to the higher of (i) the market value of the
  Vessel  and (ii) the amount of coverage that would be obtained by Similar
  Companies  on the Vessel, provided, however, that war risk protection and
  indemnity insurance  shall be in  an amount not  less than  the amount of
  insurance  against  total  loss.   Such  insurance  shall  not include  a
  deductible  or  self-insured  retention in  excess  of  USD  250,000  per
  occurrence.

            (d)   Such insurance policies  shall provide for  at least  ten
  days' or, in the case of any policy covering war risk perils, seven days'
  prior  notice  to  be given  to  the  Mortgagee  by  the underwriters  or
  association in  the event of  (i) cancellation or  reduction in  coverage
  (except  in the case  of war risk insurance)  or (ii) the  failure of the
  Shipowner to  pay any premium or call which  would suspend coverage under
  the  policy or  the  payment of  a  claim  thereunder.   A  copy of  such
  insurance shall be furnished to the Mortgagee.

            (e)   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 Shipowner  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 clause (i) above) 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
  Shipowner shall have  first fully repaired the damage or  paid all of the
  salvage  or  other  charges,  may  pay  the  Shipowner  as  reimbursement
  therefor;  provided,  however, that  if  such damage  involves a  loss in
  excess  of $500,000, the underwriters shall not make such payment without
  first obtaining the written consent  thereto of the Mortgagee.  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 Shipowner or  others, shall be paid by the  Mortgagee to,
  or as directed by, the Shipowner and all other  payments to the Mortgagee
  of losses covered by this paragraph shall be paid by the Mortgagee to the
  Lender  for application pursuant  to Section 10.4 of  the Credit Facility
  Agreement.

            (f)  In the event of an actual or  constructive total loss or a 
  compromised constructive total  loss or  requisition of  the Vessel,  all
  insurance  payments  therefor shall  be  paid  to  the  Mortgagee.    The
  Shipowner shall not declare or agree with underwriters that the Vessel is
  a constructive or compromised, agreed or arranged constructive total loss
  without the prior written consent of the Mortgagee.

            (g)   In the event of  an actual or constructive  total loss of
  the  Vessel, the  Mortgagee shall  retain out  of the  insurance payments
  received  on account of such loss and held by the Mortgagee in accordance
  with Section 305 of the Trust Indenture, any sum or sums that shall be or
  become owing the  Mortgagee under this Mortgage for the  cost, if any, of
  collecting  the  insurance,  which  sum or  sums  shall  become the  sole
  property  of  the Mortgagee,  and  pay  the  balance to  the  Lender  for
  application pursuant to Section 10.4 of the Credit Facility Agreement.

            (h)  The  Shipowner shall at all times  during which the Vessel
  is operating  within the jurisdiction  of the United  States of  America,
  maintain  or cause to be maintained insurance or post bond or maintain or
  cause to be maintained approved evidence of financial responsibility with
  respect to the  Vessel to cover the actual cost  of removal of discharged
  oil for which the Shipowner or the Vessel may be held strictly liable (or
  held liable due to the negligence of the Shipowner,  any charterer or any
  other Person) under the Clean Water Act of 1977, the Oil Pollution Act of
  1990 or the Outer Continental Shelf Lands Act, or under any other federal
  or state law  which, in  the future, may  apply to the  Vessel or to  the
  Shipowner; and the  Shipowner shall maintain  insurance covering  similar
  pollution  risks  or   liabilities  incident  thereto   under  any   law,
  regulation,  or   judicial  decision  of  any   foreign  jurisdiction  or
  jurisdictions  or   political  subdivision  thereof   applicable  to  the
  Shipowner, the Vessel, or its operations.

            Section  16.    The  Shipowner  will  reimburse  the  Mortgagee
  promptly with interest at the rate set forth in Section 9.3 of the Credit
  Facility Agreement, 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  or purchase of  liens, taxes,  dues,
  assessments, governmental charges, fines and penalties lawfully  imposed,
  repairs, attorneys'  fees, necessary translation fees  for documents made
  in a  language other than English  and other matters as  the Shipowner is
  obligated  herein to provide, but  fails to provide.   Such obligation of
  the  Shipowner  to  reimburse   the  Mortgagee  shall  be  an  additional
  indebtedness  due from the Shipowner, secured by this Mortgage, and shall
  be payable by  the Shipowner on demand.  The Mortgagee, though privileged
  so to do, shall be under no obligation to the  Shipowner to make any such
  expenditures, nor shall  the making thereof relieve the Shipowner  of any
  default in that respect. 

            Section  17.   The  Shipowner  will fully  perform any  and all
  Charter  parties which  are or may  be entered  into with  respect to the
  Vessel.

            Section  18.   The Shipowner further  covenants and  agrees, so
  long as any part of the Indebtedness hereby secured remains unpaid, there
  shall be no change in the ownership of the Vessel or any of the shares of
  the Shipowner without the prior written consent of the Mortgagee.

            Section  19.   In the  event of  an actual  or constructive  or 
  arranged total loss or seizure or the requisition of title to the Vessel,
  then and each such case, the Shipowner shall forthwith, on demand, prepay
  the Indebtedness hereby secured in full to the extent of the  Shipowner's
  obligations contained in the Credit Facility Agreement, including accrued
  interest to the date of such prepayment.  Provided, however, if insurance
  coverage  for  the event  in  question is  in existence,  the Shipowner's
  obligation to pay under this section shall arise only  to the extent that
  said insurance does  not pay for the  actual or constructive or  arranged
  total loss, seizure or  requisition of title to the Vessel  within thirty
  (30) days after said event or within thirty (30)  days of the Mortgagee's
  demand (whichever  is earlier).   In the  event that payment  pursuant to
  this Section 19  is received on a day which is not the end of an Interest
  Period, as defined in the Credit Facility Agreement, the Shipowner agrees
  that  its obligation will  include interest on the  amounts or amounts so
  paid until the end of then current Interest Period.

            Section 20.   If at  any time taxes  should be levied  anywhere
  (except in the Netherlands) on the  principal or the interest in  respect
  of  or  arising  out of  this Mortgage  or  any other  instruments  to be
  effected thereunder or in any other manner whatsoever as a consequence of
  or in connection  with the indebtedness hereby secured, such  taxes shall
  be borne and paid by the Shipowner.  If by the provisions of the relevant
  law such an arrangement cannot be legally made, the Mortgagee may require
  immediate payment of all sums secured under this Mortgage.

            Section 21.  In the  event that this Mortgage or any  provision
  hereof shall be deemed invalidated  in whole or in part by reason  of any
  present  or future law or any decision  of any authoritative court, or if
  the documents at any  time held by the Mortgagee  shall be deemed by  the
  Mortgagee for any  reason insufficient to carry  out the true intent  and
  spirit  of this  Mortgage,  then from  time to  time, the  Shipowner will
  execute,  on  its  own  behalf, such  other  and  further assurances  and
  documents  as in  the  opinion  of the  Mortgagee  may  be required  more
  effectively  to subject  the Vessel  to the  payment of  the Indebtedness
  hereby secured, as in this Mortgage provided, and the  performance of the
  terms and provisions of this Mortgage, the Notes and the Credit  Facility
  Agreement. 

            Section 22.  From time to time on the request of the Mortgagee,
  the Shipowner will furnish to the Mortgagee:  (a) such favorable opinions
  of  counsel, including  Panamanian  and  United  States  legal  opinions,
  satisfactory  in  form and  substance  to  the  Mortgagee  and  (b)  such
  instruments  executed by the Shipowner or on  its behalf or by any or all
  officers,  shareholders  or  directors  of the  Shipowner,  in  each case
  relating to any  of the transactions contemplated  herein, including this
  Mortgage, as the Mortgagee may reasonably request. 

                                  ARTICLE II

                        EVENTS OF DEFAULT AND REMEDIES

            Section  1.   If a  petition in  bankruptcy for  arrangement or
  reorganization  or  any  similar  petition be  filed  by  or against  the
  Shipowner in any place, the Indebtedness hereby secured shall immediately
  become due and payable in full without any notice or demand.  In case any
  one  or more of  the following  events herein termed  "Events of Default"
  shall occur and be continuing:  

            (a)  Failure  by the Shipowner to pay any  amount due under the
  Notes when due, subject to the applicable grace periods; or 

            (b)  Default in the due and punctual observance and performance
  of any  of the provisions of  the Credit Facility Agreement  or the Trust
  Indenture  and same  shall continue  unremedied for  ten (10)  days after
  notice thereof; or 

            (c)  Default in the due and punctual observance and performance
  of any of the provisions of Sections 5, 6, 9, 10, 11, 12, 13, 14, 15, and
  19 of Article I hereof; or

            (d)  Default in the due and punctual observance and performance
  of any  other provision  of  this Mortgage  and the  same shall  continue
  unremedied for ten (10) days. 

            (e)  The Vessel is lost, disappears, is abandoned, condemned as
  a prize, seized, requisitioned, embargoed, forfeited, put up for auction,
  bottomried, loses  its class  or loses  the right to  fly the  Panamanian
  flag.

  then,  upon the  occurrence and  continuance  of one  or  more Events  of
  Default, (and in each and every case), the Mortgagee shall have the right
  to:

             (1)  Declare the then unpaid Indebtedness hereby secured to be
        due and payable immediately,  and upon such declaration,  the same,
        including  interest to the date of declaration, shall become and be
        immediately due and payable, (provided however, that no declaration
        shall  be required if an Event of Default shall have occurred under
        Section 1(e) of this Article II).

             (2)   Exercise all  of the rights and  remedies in foreclosure
        and  otherwise given to  mortgagees by the laws  and regulations of
        the  Republic of Panama or of any country wherein the Vessel may be
        found or of any other applicable jurisdiction. 

             (3)   Bring suit at  law, in  equity or in  admiralty, in  any
        court of  any nation of the world, as it may be advised, to recover
        judgment for the Indebtedness  hereby secured, and collect the same
        out of  any and  all of  the properties of  the Shipowner,  whether
        covered by this Mortgage or otherwise. 

             (4)   Take and  enter into  possession of  the Vessel,  at any
        time, wherever the  same may be, without legal process  and without
        being  responsible for loss  or damage, and the  Shipowner or other
        person in possession  forthwith upon demand of the  Mortgagee shall
        surrender to the Mortgagee possession of the Vessel. 

             (5)    Without  being  responsible  for  loss  or damage,  the
        Mortgagee may hold,  lay up, lease,  charter, operate or  otherwise
        use such Vessel for such time and upon such terms as it may deem to
        be for its best advantage, and demand, collect and retain all hire,
        freights,  earnings,  issues,  revenues,  income,  profits,  return
        premiums, salvage  awards  or  recoveries,  recoveries  in  general
        average, and all other sums due or to become due in respect of such 
        Vessel  or  in respect  of  any insurance  thereon from  any person
        whomsoever, accounting  only for the  net profits, if  any, arising
        from such use of the Vessel and charging upon all receipts from the
        use of the Vessel or from the sale thereof  by court proceedings or
        pursuant  to subsection  (6) next  following, all  costs, expenses,
        charges,  damages or losses  by reason  of such use; and  if at any
        time the Mortgagee shall avail itself of the  right herein given it
        to take the Vessel, the  Mortgagee shall have the right to dock the
        Vessel, for a reasonable  time at any dock, pier or  other premises
        of the Shipowner without charge, or to dock her  at any other place
        at the cost and expense of the Shipowner. 

             (6)   Sell  the Vessel  without  judicial process  and without
        being responsible for any  loss or damage arising therefrom, except
        as  may  be  directly  and   proximately  caused  by  its   willful
        misconduct, recklessness  or gross negligence, in  such place, time
        and manner as  the Mortgagee may, in  its sole judgment,  deem fit.
        In the event that the  Vessel shall be offered for sale  by private
        sale, reasonable notice must be given to the Shipowner but need not
        be  more than  3  days before  the private  sale, and  no newspaper
        publication of notice shall be required, nor notice of  adjournment
        of sale;  sale may be  held at such place  and at such  time as the
        Mortgagee by notice may have specified, or  may be adjourned by the
        Mortgagee  from time to time by announcement  at the time and place
        appointed for  such sale or  for such adjourned  sale, and  without
        further  notice or publication the Mortgagee may make any such sale
        at the time and place to which the same shall be so  adjourned.  At
        the sale, the  Mortgagee may acquire the Vessel in  satisfaction of
        the outstanding Indebtedness. 

            It is expressly stated that upon payment of the purchase price,
  the purchaser shall acquire good  and peaceful title to the Vessel at any
  such  non-judicial sale,  and  shall  not be  affected  by  any claim  or
  potential claim of the Mortgagor, whether or  not such claim or potential
  claim comes to the knowledge of the purchaser. 

            Any  sale may be  conducted without bringing the  Vessel to the
  place designated  for such sale and  in such manner as  the Mortgagee may
  deem to be for its best advantage. 

            Section 2.   Any sale of  the Vessel made in  pursuance of this
  Mortgage,  whether under the power of sale hereby granted or any judicial
  proceedings, shall operate to divest all right, title and interest of any
  nature whatsoever of the Shipowner therein and thereto, and shall bar the
  Shipowner,  its successors  and  assigns, and  all  persons  claiming by,
  through or  under  them, from  asserting any  claim  or right,  title  or
  interest  therein or  thereto.   No purchaser shall  be bound  to inquire
  whether notice has been given, or whether any default has occurred, or as
  to the propriety of the  sale, or as to  the application of the  proceeds
  thereof. 

            Section 3.  The Mortgagee is hereby appointed  attorney-in-fact
  of the Shipowner to  execute and deliver to any purchaser  aforesaid, and
  is hereby vested with  full power and authority to make,  in the name and
  in behalf of the Shipowner, a good conveyance of the title to  the Vessel
  so sold.  In the event of any sale of the Vessel, under  any power herein
  contained, the  Shipowner will, if  and when required  by the  Mortgagee, 
  execute such form of conveyance of the Vessel as the Mortgagee may direct
  or approve. 

            Section 4. The  Mortgagee is hereby appointed  attorney-in-fact
  of the Shipowner upon the happening of any Event  of Default, in the name
  of the Shipowner to demand, collect,  receive, compromise and sue for, so
  far as  may be permitted  by law,  all freights, hire,  earnings, issues,
  revenues,  income  and profits  of the  Vessel and  all amounts  due from
  underwriters  under  any insurance  thereon  as payment  of losses  or as
  return premiums  or otherwise, salvage awards  and recoveries, recoveries
  in general average or otherwise, and all other sums due or to become  due
  at the time of the  happening of any Event  of Default in respect  of the
  Vessel or in respect of any insurance thereon from any person whomsoever,
  and to make, give and  execute in the name of the Shipowner acquittances,
  receipts, releases or  other discharges for the same, whether  under seal
  or otherwise,  all checks, notes, drafts, warrants,  agreements and other
  instruments in writing with respect to the foregoing. 

            Section 5.  Whenever any right to enter and take  possession of
  the Vessel  accrues to  the Mortgagee,  it may require  the Shipowner  to
  deliver,  and the Shipowner shall on demand, at its own cost and expense,
  deliver to  the Mortgagee  the Vessel at  the location designated  by the
  Mortgagee. 

            Section 6.  The Shipowner authorizes and empowers the Mortgagee
  or its appointees or any of them to  appear in the name of the Shipowner,
  its successors  and assigns, in any court of any country or nation of the
  world where a suit is pending against the Vessel because of or on account
  of any alleged lien against the Vessel from which the Vessel has not been
  released and to take such proceedings as to them or  any of them may seem
  proper towards the defense of such suit and the  purchase or discharge of
  such lien, and all  expenditures made or incurred by them or  any of them
  for the purpose of such defense  or purchase or discharge shall be a debt
  due from the Shipowner, its successors and  assigns, to the Mortgagee and
  shall be secured by the lien  of this Mortgage in like manner and  extent
  as if the amount and description thereof were written herein.

            Section  7.  The Shipowner covenants that upon the happening of
  and continuance of any one or more of the Events of Default, upon written
  demand of  the Mortgagee, the  Shipowner will  pay to  the Mortgagee  the
  whole  amount due and payable on the Indebtedness hereby secured together
  with  any  other  amounts  due hereunder  or  under  the Credit  Facility
  Agreement; and  in case the  Shipowner shall fail  to pay same  forthwith
  upon such demand, the Mortgagee shall be entitled to recover judgment for
  the whole amount so due and unpaid, together with such further amounts as
  shall  be  sufficient  to  cover   the  reasonable  compensation  to  the
  Mortgagee's  agents, attorneys  and counsel  and any  necessary advances,
  expenses and liabilities  made or incurred  by it hereunder.   All moneys
  collected  by the Mortgagee under this Section  7 shall be applied by the
  Mortgagee in accordance with the provisions of Section 11. 

            Section 8.  Each and every right, power and remedy herein given
  to the  Mortgagee shall be cumulative  and shall be in  addition to every
  other  right, power and remedy herein  given or now or hereafter existing
  at law, in equity, in admiralty or by statute, and each and  every right,
  power  and remedy  whether  herein given  or  otherwise existing  may  be
  exercised from  time to time  and as  often and in  such order as  may be 
  deemed expedient by the Mortgagee,  and the exercise or the  beginning 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 Mortgagee or by the
  holder of any  of the Indebtedness hereby secured in  the exercise of any
  right  or power or in the pursuance of any remedy accruing upon any Event
  of  Default shall impair any such right,  power or remedy or be construed
  to be  a waiver of  any such  Event of Default  or to be  an acquiescence
  therein;  nor shall the acceptance by the Mortgagee of any security or of
  any payment of  or on account of the Indebtedness hereby secured 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. 

            Section 9.  If at any time after an Event of Default  and prior
  to any foreclosure action having been taken by the Mortgagee under any of
  the  Loan  Documents to  realize  upon  the  security  provided  by  such
  documents,  the Shipowner offers completely to cure all Events of Default
  and to pay all expenses, advances and damages to the Mortgagee consequent
  to such  Events of Default, with  interest at the rate  provided for late
  payments herein, then and in the case of the first such Event of Default,
  the Mortgagee shall, and in the case of any succeeding Events of Default,
  the Mortgagee  may, but shall not  be required to, accept  such offer and
  payment and restore the Shipowner to its former position, but such action
  shall  not affect any  subsequent Event of  Default or impair  any rights
  consequent thereon.

            Section  10.   In case  the Mortgagee  shall have  proceeded to
  enforce  any right, power  or remedy under this  Mortgage by foreclosure,
  entry  or otherwise, and such proceedings shall have been discontinued or
  abandoned  for any reason or shall  have been determined adversely to the
  Mortgagee, then  and in every such  case the Shipowner  and the Mortgagee
  shall be  restored to their  former positions and  rights hereunder  with
  respect  to  the property  subject  or intended  to  be  subject to  this
  Mortgage,  and all  rights, remedies  and powers  of the  Mortgagee shall
  continue as if no such proceedings had been taken. 

            Section 11.  The proceeds of any sale of the Vessel received by
  the Mortgagee and the net earnings of any charter  operation or other use
  of the Vessel  received by the Mortgagee under any  of the rights, powers
  or remedies herein specified and any and all other moneys received by the
  Mortgagee  pursuant to  or under  the terms  of this  Mortgage or  in any
  proceedings  hereunder, the application of which has not elsewhere herein
  been specifically provided for, shall be applied as follows: 

                   FIRST:    To the  payment of  all expenses  and charges,
              including the  expenses  of  any sale,  the expenses  of  any
              retaking,  attorney's  fees,  court  costs,  and   any  other
              expenses or advances made or incurred by the Mortgagee in the
              protection  of its rights  or the  pursuance of  its remedies
              hereunder; 

                   SECOND:    To the  payment  of  the Indebtedness  hereby
              secured  pursuant  to Section  10.4  of  the Credit  Facility
              Agreement, whether due or not, including interest thereon  to
              the date of such payment;  

                   THIRD:    To  the  payment  of  any  surplus  thereafter
              remaining to  the Shipowner or  to whomever  may be  entitled
              thereto. 

            Section 12.   Until one or more of the  Events of Default shall
  happen,  the  Shipowner (a)  shall  be suffered  and permitted  to retain
  actual possession  and use of the  Vessel and (b)  shall have the  right,
  from time  to time,  in its discretion,  and without  application to  the
  Mortgagee, and without  obtaining a release thereof by the  Mortgagee, to
  dispose of, free  from the lien hereof, any boilers,  engines, machinery,
  masts, spars, sails,  rigging, boats, anchors,  chains, tackle,  apparel,
  furniture, fittings or equipment, drilling equipment, pumps, drill pipes,
  collars, racking, housing, spare parts and supporting inventory, vehicles
  and living quarters or any  other appurtenances of the Vessel that are no
  longer useful, necessary, profitable or advantageous  in the operation of
  the Vessel,  first or simultaneously having provided  for the replacement
  thereof by new boilers, engines, machinery, masts, spars, sails, rigging,
  boats,  anchors, chains, tackle, apparel, furniture, fittings, equipment,
  drilling equipment, pumps, drill pipes, collars, racking, housing,  spare
  parts and  supporting inventory, vehicles  and living  quarters or  other
  appurtenances of substantially equal value to the Shipowner, which  shall
  forthwith become  subject to the lien  of this Mortgage as  a first naval
  mortgage thereon. 

            Section  13.  If the entire Indebtedness hereby secured be paid
  as and when the same becomes due  and payable, and if the Shipowner  also
  pays or  causes  to be  paid  all  other sums  payable by  the  Shipowner
  hereunder  and under the Credit Facility Agreement then this Mortgage and
  the lien, rights  and interest hereby granted shall cease,  determine and
  become null  and void, and  the Mortgagee  shall, at the  request of  the
  Shipowner,  execute  and  deliver  such  instrument  or  instruments   of
  satisfaction  as may  be  necessary to  satisfy  and discharge  the  lien
  hereof;  and forthwith  the  estate, right,  title  and interest  of  the
  Mortgagee in and to all property subject to this Mortgage shall thereupon
  cease, determine and become null and void. 

                                  ARTICLE III

                              Sundry Provisions.

            Section 1.   The names, surnames, civil  status, occupation and
  domicile of the creditor and debtor are as follows: 

       CREDITORS:

        Name:                   Internationale Nederlanden Bank, N.V.
                                De Amsterdamse Poort
                                1102 MG Amsterdam Zuid-Oost
                                The Netherlands
                                Telefax No.: 011-31-2-05-67-21-99

        Civil Status:           Corporation organized under the laws
                                of the Netherlands

        Occupation:             Lending Institution

        Domicile:               c/o Bank One, Texas, N.A., 
                                      as Trustee
                                910 Travis, 6th Floor
                                Houston, Texas  77002-5860
                                Telephone No.:  (713) 751-6834
                                Telefax No.:  (713) 751-6806

        SHIPOWNER:

        Name:                   Reading and Bates Borneo
                                      Drilling Co., Ltd.

        Civil Status:           Corporation organized under the laws of
                                the State of Oklahoma

        Occupation:             Shipowner

        Domicile:               901 Threadneedle, Suite 200
                                Houston, Texas  77079
                                Telefax No.:  (713) 496-0285

            Section  2.  All  of the covenants,  promises, stipulations and
  agreements of  the Shipowner in  this Mortgage contained  shall bind  the
  Shipowner and its successors and  assigns and shall inure to  the benefit
  of the  Mortgagee and its  successors and assigns.   In the event  of any
  assignment  of this  Mortgage,  the term  "Mortgagee",  as used  in  this
  Mortgage, shall be deemed to mean any such assignee. 

            Section  3.  Wherever  and whenever herein any  right, power or
  authority is  granted or given  to the  Mortgagee, such  right, power  or
  authority may be exercised in all cases by the Mortgagee or such agent or
  agents as it  may appoint, and  the act or acts  of such agent  or agents
  when taken shall constitute the act of the Mortgagee hereunder. 

            Section 4.  In the event that any provision of this Mortgage or
  the Credit Facility Agreement shall be deemed invalid or unenforceable by
  reason  of any present or future law or any decision of any authoritative
  court,  the validity and enforceability of the other provisions hereof or
  thereof shall not be affected thereby. 

            Section 5.  The Shipowner agrees to pay  all costs and expenses
  in  connection with the preparation, execution and delivery of the Credit
  Facility Agreement, the Notes, the Trust Indenture, this Mortgage and any
  other instrument contemplated thereby (including the reasonable fees  and
  out-of-pocket expenses of counsel to  the holder of the Notes, the Credit
  Facility Agreement and to the Mortgagee and  of local counsel selected by
  said   counsel  in   any  jurisdiction   involved  in   the  transactions
  contemplated  by  the Credit  Facility Agreement  and this  Mortgage) and
  costs  and  expenses,  including counsel  fees,  in  connection with  the
  enforcement of  the  Credit  Facility  Agreement, the  Notes,  the  Trust
  Indenture, this  Mortgage and any other  instrument contemplated thereby,
  as well as  costs for translations and any and  all stamp and other taxes
  of every  character, if any, now or hereafter  in effect, whether foreign
  or domestic,  not including  taxes imposed  on the income  of the  holder
  hereof by  the Netherlands or  any political subdivisions  thereof, which
  may  be payable  or  determined  to be  payable  in  connection with  the
  execution, delivery, performance  or enforcement of  the Credit  Facility
  Agreement,  the Notes,  the Trust  Indenture and  this Mortgage,  and any 
  other  instrument  contemplated  thereby  and  the  payments to  be  made
  thereunder, whether any such tax be imposed upon the holder of the Credit
  Facility Agreement, the  Notes, the Trust Indenture or the  Mortgage, and
  to save any holder of the Credit Facility Agreement, the Notes, the Trust
  Indenture  and the Mortgagee  harmless from any and  all liabilities with
  respect to or resulting from any delay or omission to pay such taxes.

            Section 6.   This  Mortgage may be  executed in  any number  of
  counterparts, and all such counterparts executed and delivered each as an
  original shall  constitute but one and  the same instrument.   In case of
  any  discrepancy between an  English counterpart and the  Spanish and the
  Notarial version thereof  in Spanish, as between the parties  hereto, the
  English counterpart shall control. 

            Section  7.   Any  notice  or other  communication to  be given
  pursuant hereto shall be sent by hand or by postage prepaid letter  or by
  cable or telegram or telefax or telex confirmed by letter and addressed:

            To the Shipowner:

                    Reading and Bates Borneo Drilling Co., Ltd.
                    901 Threadneedle, Suite 200
                    Houston, Texas  77079
                    Attention:  President
                    Telephone No.:    (713) 496-5000
                    Telefax No.:      (713) 496-0285
                    Telex No.:  762305

              To the Mortgagee:

                    Bank One, Texas, N.A.
                    910 Travis, 6th Floor
                    Houston, Texas  77002-6834
                    Attention:  Mr. Roark Ashie
                    Telephone No.: (713) 751-6834
                    Telefax No.:      (713) 751-6806

            (b)  Any notice of communication sent by postage prepaid letter
  shall be deemed to be received three  days after mailing.  Any notice  or
  communication sent by telex or facsimile shall be  deemed received at the
  opening   of  business  the  day  after  transmission.    Any  notice  or
  communication sent by hand shall be deemed to be received on the day sent
  if sent  during normal  business hours  and otherwise  at the opening  of
  business on day following delivery.

            Section 8.  No provision of or incorporated in this Mortgage or
  the Credit Facility  Agreement shall be deemed to constitute  a waiver by
  the Mortgagee  of preferred status of this Mortgage given to foreign flag
  vessels by Subsections K, L, M  and N of the Ship Mortgage Act, 1920,  as
  amended, of the United States of America or comparable legislation of any
  other jurisdiction where this Mortgage may be enforced, and any provision
  of or incorporated in this Mortgage which would otherwise constitute such
  a waiver shall to such extent be of no force or effect. 

            FIFTH:    The Mortgagee  hereby  accepts all  of the  terms and
  conditions  set forth in  this First  Naval Mortgage and  the First Naval
  Mortgage granted hereby. 

            SIXTH:    The Mortgagee  and the  Shipowner  declare that  they
  hereby confer  a special Power  of Attorney on  Messrs. Arias,  Fabrega &
  Fabrega, lawyers of  Panama, Republic of Panama, empowering each  of them
  individually to take all necessary  steps to file and register this First
  Naval Mortgage in the appropriate registries of the Republic of Panama. 

            IN  WITNESS  WHEREOF, the  parties  hereto  have executed  this
  Mortgage as of the day and year first above written. 


                          Reading and Bates Borneo Drilling Co.. Ltd.



                          By:   _________________________________
                                Attorney-in-Fact


                          Bank One, Texas, N.A., as Trustee



                          By:   _________________________________
                                Attorney-in-Fact 
<PAGE>
 

  REPUBLIC OF PANAMA      )
                          :  ss.:
  COUNTY OF _______       )


              On  the        day of _________,  1995, before  me personally
  came                    ,  to me known and  known to me to  be the person
  who executed the  foregoing instrument, who  being by me  duly sworn  did
  depose and say that he resides at
                                ;  that he is attorney-in-fact of Reading &
  Bates Borneo Drilling Co., Ltd., an Oklahoma corporation, the corporation
  described  in and which executed the foregoing instrument; that he signed
  his name thereto by order  of the Board of Directors of said corporation;
  and that said instrument is the act and deed of the corporation. 

              And the said                           did further produce to
  me sufficient proof that he is  of said corporation and that he  was duly
  authorized by the said corporation to execute the foregoing mortgage, and
  I   the  notary   hereby  certify   that  the   signature  of   the  said
                                on the foregoing mortgage is authentic. 



                                      ______________________________
                                            Notary Public 
<PAGE>
 

  REPUBLIC OF PANAMA      )
                          :  ss.:
  STATE OF   _______      )


              On the       day of ________, 1995, before me personally came
                     , to  me known and  known to me  to be  the person who
  executed  the foregoing instrument, who being by me duly sworn did depose
  and say that he resides at
                                ;  that he is Attorney-in-Fact of Bank One,
  Texas,  N.A.,  a   United  States  national   banking  association,   the
  association  described in  and which  executed the  foregoing instrument;
  that  he signed his  name thereto by  order of the Board  of Directors of
  said  association; and that  said instrument  is the act and  deed of the
  association. 

              And the said                           did further produce to
  me sufficient proof that  he is                      of  said association
  and that  he was duly authorized  by the said association  to execute the
  foregoing mortgage, and I the notary hereby certify that the signature of
  the said                        on the foregoing mortgage is authentic. 


                                      ______________________________
                                            Notary Public 


                                                                 EXHIBIT J
                                                    TO AMENDED AND RESTATED
                                                  CREDIT FACILITY AGREEMENT 


                   AUSTRALIAN FIRST REGISTERED SHIP MORTGAGE

        AUSTRALIAN FIRST REGISTERED  SHIP MORTGAGE dated April  27, 1995 by
  READING & BATES (A)  Pty Ltd., a corporation organized  under the laws of
  the  State  of Western  Australia, Commonwealth  of  Australia, with  its
  business address at  901 Threadneedle, Suite 200, Houston, Texas   77079,
  (the   "Shipowner")  to  BANK  ONE,   TEXAS,  N.A.,  a  national  banking
  association,  as  Trustee,  with  its  business address  at  910  Travis,
  Houston, Texas  77002-5860, (the "Trustee").

        This instrument, as supplemented or amended, is hereinafter 
  referred to as "this Mortgage". 

                                   RECITALS

        WHEREAS: 

        1.  The Shipowner is the owner of all sixty-four (64) shares in the
  Australian  flag drilling rig RON TAPPMEYER, Official No. ______, port of
  documentation, _______,  _____ built  in Singapore (the  "Vessel"), which
  Vessel  has  been  duly  registered  in  the  name of  the  Shipowner  in
  accordance with the laws of the Commonwealth of Australia.

        2.  By the Amended and Restated Credit Facility Agreement, dated as
  of April  27, 1995 (the  "Amended and Restated  Agreement"), between  the
  Shipowner  and  the other  Borrowers  named in  the Amended  and Restated
  Agreement  and  Internationale  Nederlanden  Bank,  N.V.,  a  corporation
  organized under the laws of The Netherlands (such bank  shall be referred
  to herein as  the "Lender"), providing for Advances to,  and the issuance
  of  letters of credit  for the  accounts of, the Shipowner  and the other
  Borrowers named in the Amended  and Restated Agreement up to an aggregate
  amount of USD 65,000,000 (the "Commitment") for the purposes indicated in
  the Amended and Restated  Agreement.  A copy  of the form of  the Amended
  and Restated Agreement is attached hereto as Exhibit A.   The obligations
  of the Borrowers  under the Amended and Restated Agreement  are evidenced
  by the  Promissory Notes of  the Shipowner and  the other Borrowers  (the
  "Notes")  in the form attached as Exhibit  A-1 through A-5 to the Amended
  and Restated Agreement. 

        3.   The total amount  secured by this  Mortgage is  USD 65,000,000
  representing  the total  commitment of  the Lender  to make  advances and
  issue  letters of credit  under the Amended and  Restated Agreement, plus
  interest, all  costs  and  other  obligations and  covenants  under  this
  Mortgage.
   
        4.    By  Assignment,  Assumption  and  Amendment  No. 2  to  Trust
  Indenture dated April  27, 1995 among the Shipowner, the  other Borrowers
  and the  Trustee, the Trustee has  among other things  assumed the rights
  and  obligations  of  Texas Commerce  Bank  National  Association  in its
  capacity as trustee  under the Trust Indenture dated March 29,  1991, (as
  assigned and as  amended, the "Trust Indenture"), and has  thereby agreed
  to act  on  behalf of  the  holder of  the  Notes  with respect  to  this
  Mortgage.  A copy of the  form of the Trust Indenture is attached  hereto
  as Exhibit B. 

        5.    The Shipowner, in  order to secure the payment of  all monies
  owing or that may become owing from time to time by the  Shipowner to the
  Lender  or  the Trustee  under  this Mortgage,  the Amended  and Restated
  Agreement or any other Loan  Document, all of which amounts the Shipowner
  undertakes  to pay  in accordance  with the  terms of  this  Mortgage the
  Amended and Restated Agreement and  the other Loan Documents (hereinafter
  called  the "Indebtedness") and to secure  the performance and observance
  of  and compliance with  all the covenants,  terms and conditions  in the
  Amended  and  Restated  Agreement,  this  Mortgage  and  the  other  Loan
  Documents,  has  duly  authorized  the  execution and  delivery  of  this
  Mortgage  under  and  pursuant  to all  applicable  laws  binding on  the
  Shipowner.

  NOW, THEREFORE, THIS MORTGAGE WITNESSETH: 

        That,  in consideration  of  the premises  and  of other  good  and
  valuable consideration,  the receipt whereof is  hereby acknowledged, and
  in order  to secure the payment  of the Indebtedness,  and to secure  the
  performance and  observance of and  compliance with the  covenants, terms
  and  conditions  herein and  in  the  Notes,  the  Amended  and  Restated
  Agreement and the  Trust Indenture the  Shipowner has granted,  conveyed,
  mortgaged,  pledged, set over  and confirmed and does  by these presents,
  grant, convey, mortgage,  pledge, set over and confirm unto  the Trustee,
  its successors  and assigns, one  hundred percent (100%)  of the  Vessel,
  that is, all  sixty-four (64) shares of which the  Shipowner is the owner
  in  the Vessel,  together with  all of  the boilers,  engines, machinery,
  masts, spars,  sails, rigging,  boats, anchors, chains,  tackle, apparel,
  furniture,  fittings, drilling  equipment, pumps,  drill  pipes, collars,
  racking,  housing, spare  parts  and supporting  inventory,  vehicles and
  living quarters (excluding equipment aboard the Vessel which is not owned
  by  the Shipowner) and all other appurtenances to the Vessel appertaining
  or belonging, whether  now owned or hereafter acquired, whether  on board
  or not, and all additions,  improvements, and replacements hereafter made
  in or to the Vessel. 

        TO  HAVE  AND TO  HOLD  ALL and  singular  and above  mortgaged and
  described property unto  the Trustee, to its own  use, benefit and behalf
  forever. 

        PROVIDED, only, and the conditions of these presents are such, that
  if  the Shipowner, its  successors or  assigns, shall pay or  cause to be
  paid in full the Indebtedness as and  when the same shall become due  and
  payable in accordance  with the  terms of this  Mortgage, the Notes,  the
  Trust Indenture and the Amended and  Restated Agreement and shall pay  or
  cause to  be  paid all  other amounts  which become  due  and payable  in
  accordance  with  the terms  of  this  Mortgage,  the  Notes,  the  Trust
  Indenture  or the Amended and Restated Agreement, then these presents and
  the rights hereunder shall cease,  terminate and be void; otherwise to be
  and remain in full force and effect. 

        The Shipowner hereby agrees with the Trustee that the Vessel now or
  at any time subject  to the lien of  this Mortgage is to  be held by  the
  Trustee subject to the further agreements and conditions hereinafter  set
  forth. 

                                   ARTICLE I
          REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE SHIPOWNER

        SECTION 1.  To Pay  the Indebtedness, etc.  The Shipowner  will pay
  the Indebtedness and will observe, perform and comply with the covenants,
  terms and  conditions herein and in  the Notes, the Amended  and Restated
  Agreement and the  Trust Indenture, expressed or implied, on  its part to
  be observed, performed or complied with. 

        SECTION 2.  Due Organization.   The Shipowner is duly organized and
  is now existing  as a proprietary limited company under  the Corporations
  Law and  will remain  so during  the term  of this  Mortgage; it  is duly
  authorized to mortgage  the Vessel; all action necessary and  required by
  law for the execution and delivery of the Notes, the Amended and Restated
  Agreement,  the Trust  Indenture  and this  Mortgage  has been  duly  and
  effectively taken; this Mortgage, the Amended and Restated Agreement, the
  Trust  Indenture and  the Notes  are and  will be  valid and  enforceable
  obligations  of the Shipowner in accordance with their terms, subject, as
  to enforcement, to bankruptcy,  insolvency, reorganization and other laws
  of general applicability relating to or affecting creditors rights and to
  general equity principles.  The  Shipowner will, so long as the Notes are
  outstanding, do all such acts and things as may be necessary or advisable
  to maintain,  without qualification, the correctness and  accuracy of the
  preceding sentence of this Section 2. 

        SECTION 3.   Ownership of Vessel.  The  Shipowner lawfully owns and
  is lawfully possessed of  the Vessel free from  any lien and  encumbrance
  whatsoever,  other than this Mortgage, and the Shipowner will warrant and
  defend  the title and  possession thereto and every  part thereof for the
  benefit  of the  Trustee against  the claims  and demands of  all persons
  whomsoever.   The Shipowner  agrees to warrant  and defend the  title and
  possession of  the Vessel  and every  part each  against  the claims  and
  demands of  all persons  whomsoever arising  as the  result of  any  such
  liens, charges or encumbrances for the benefit of the Trustee. 

        SECTION  4.  Recording.  The  Shipowner will cause this Mortgage to
  be duly registered in the Register of Ships pursuant to Section 38 of the
  Shipping Registration Act  1981 (Commonwealth), on  the date hereof,  and
  will  otherwise comply  with and  satisfy all  of the  provisions of  the
  Shipping Registration Act 1981 (Commonwealth)  in order to establish  and
  maintain this Mortgage as a first registered mortgage thereunder upon the
  Vessel and upon all renewals, replacements and improvements made in or to
  the same. 

        SECTION  5.    Operation   and  Documentation;  Citizenship.    The
  Shipowner  will not  cause or  permit the  Vessel to  be operated  in any
  manner contrary to law and the Shipowner will not  engage in any unlawful
  trade or violate any law or carry any cargo that may expose the Vessel to
  penalty, forfeiture or capture or otherwise operate the Vessel in any way
  which  might  jeopardize  the  Trustee's security  in  the  Vessel.   The
  Shipowner will not do, or suffer or permit to be done, anything which can
  or  may injuriously affect  the registration or enrollment  of the Vessel
  under the laws and regulations  of the Commonwealth of Australia and will
  at all times keep  the Vessel duly documented thereunder.   The Shipowner
  will  at all times remain  an Australian national within  the meaning set
  out in Section 3(1) of the Shipping Registration Act 1981 (Commonwealth).

        SECTION 6.  Payment of Taxes.  The Shipowner will from time to time
  discharge  or cause  to be  paid and  discharged as  they become  due and
  payable all  taxes, assessments and governmental  charges lawfully levied
  or assessed or imposed on the Shipowner or upon the Vessel or upon any of
  its properties  or  assets or  in respect  of its  franchises or  income;
  provided, however,  that the Shipowner shall have the right to contest or
  cause to be  contested in good faith and  by appropriate proceedings, any
  such  tax, assessment or governmental  charge, and, pending such contest,
  may defer  or cause to be deferred  the payment thereof, so  long as such
  deferment and payment shall not subject the Vessel to forfeiture or loss,
  and so  long  as there  shall have  been set  up  adequate reserves  with
  respect thereto. 

        SECTION 7.  No  Authority to Incur Liens.   Neither the  Shipowner,
  any charterer,  the Masters  of the  Vessel nor any  other person  has or
  shall have any right, power or authority to create, incur or permit to be
  placed or imposed or continued upon the Vessel any liens whatsoever other
  than the lien of this Mortgage and Permitted Liens. 

        SECTION  8.  Notice of Mortgage.   The Shipowner will place, and at
  all  times  and places  will retain,  a properly  certified copy  of this
  Mortgage  on  board  the  Vessel  with her  papers  and  will  cause such
  certified  copy and the Vessel's marine  documents to be exhibited to any
  and all persons having business with it which might give rise to any lien
  thereon  and to any  representatives of  the Trustee; and  will place and
  keep prominently displayed in the chart room and in the Master's cabin of
  the Vessel a framed printed notice reading as follows:

                              "NOTICE OF MORTGAGE
              This Vessel  is covered by a  First Registered Mortgage
        in favor of Bank One, Texas,  N.A., Trustee, Mortgagee, under
        Section   38   of   the   Shipping  Registration   Act   1981
        (Commonwealth).  Under the terms of said Mortgage neither the
        Owner, any Charterer, the Master of this Vessel nor any other
        person  has any right, power or authority to create, incur or
        permit  to be placed or imposed or continued upon this Vessel
        any lien whatsoever other than said First Registered Mortgage
        and liens for crew's wages, wages of stevedores and salvage."

        SECTION  9.   Discharge  of Liens.    Except for  the lien  of this
  Mortgage and  Permitted Liens,    the Shipowner  will  not suffer  to  be
  continued  any  lien, encumbrance  or charge  on  the Vessel  and  in due
  course, and in any event  within ninety (90) days after the  same becomes
  due and  payable, will pay or  cause to be  discharged, or make  adequate
  provision  for the  satisfaction or  discharge of,  all lawful  claims or
  demands, or will cause the  Vessel to be released or discharged  from any
  lien, encumbrance or charge therefor. 

        SECTION 10.   Notice of Libels and  Damage.  If any  libel be filed
  against  the Vessel  or any execution  or other  process of  any court or
  tribunal is issued against or levied upon  the Vessel or if the Vessel is
  otherwise attached, levied  upon or taken into  custody by virtue  of any
  legal proceeding in  any court,  tribunal or  governmental authority  (de
  jure  or  de  facto), or  if  the  Vessel  suffers  damage  in excess  of
  USD 1,000,000, the Shipowner will promptly notify the Trustee thereof  by
  telefax or telex, confirmed  by letter, addressed  to the Trustee at  its
  corporate trust office, and, in  the case of any such libel, execution or
  attachment, within thirty (30) days will cause said Vessel to be released
  and  all liens  thereon to be  discharged, and  will promptly  notify the
  Trustee thereof in the manner aforesaid. 

        SECTION  11.  Classification.   The Shipowner will  without cost or
  expense to the Trustee, (a) maintain the Vessel and its machinery in such
  condition and  repair as will  keep the  Vessel entitled  to the  highest
  classification   in   the  American   Bureau   of   Shipping,  or   other
  classification  society  of like  standing  approved  in  writing by  the
  Trustee, for the Vessel  , (b) keep  the Vessel, its machinery,  boilers,
  appurtenances and  spare parts in a  good state of repair,  wear and tear
  and  depreciation  excepted,  and  in  efficient operating  condition  in
  accordance  with  good commercial  maintenance  practices,  (c) keep  the
  Vessel tight, staunch, strong and in all respects seaworthy, in so far as
  due  diligence can make  it (d) maintain  the Vessel with  full unexpired
  classification and other  required certificates and (e) furnish  prior to
  June  1  of  each  year  to  the  Trustee,  a  written  statement  of the
  classification society that  the classification referred to  in (a) above
  is in  effect.  The  Vessel shall,  and the Shipowner  covenants that  it
  will,  at  all times  comply  with  all  applicable  laws,  treaties  and
  conventions  of the  United States  of  America, or  to which  the United
  States of America is  a party, from time to time in effect, and rules and
  regulations  issued thereunder,  and  shall have  on  board as  and  when
  required thereby  valid certificates  showing compliance therewith.   The
  Shipowner  will not make, or permit to be made, any substantial change in
  the structure,  type, rig or speed  of the Vessel  which would alter  the
  essential character  of the Vessel or  materially impair its  use for the
  purpose for which  such was designed without first receiving  the written
  approval thereof by the Trustee, which approval shall not be unreasonably
  withheld. 

        SECTION  12.   Right  of  Inspection.   The  Shipowner will  at all
  reasonable  times afford  the Trustee  or its  authorized representatives
  full and complete access to  the Vessel during normal business  hours for
  the purpose of inspecting the Vessel and its cargoes  and papers, and the
  Shipowner  will deliver  for  inspection  copies of  such  contracts  and
  documents relating to the Vessel, whether on board or not, as the Trustee
  may reasonably request, provided however, that (i) non-public information
  obtained  by the  Trustee pursuant  to any  Loan Document  concerning the
  Shipowner,  the Vessel,  any other  assets or  the Shipowner's  financial
  condition and  prospects  shall  be  kept  confidential  by  the  Trustee
  subject,   however,  to   requests  from   the  Lender,   any  applicable
  Governmental Agencies and to disclosures of such information to assignees
  and participants  (and potential assignees and  participants) pursuant to
  Section  18.8 of  the Amended  and Restated  Agreement, unless  such non-
  governmental  parties shall  agree  prior thereto  to  be bound  by  this
  Section 12 and (ii) any inspection of the Vessel,  its cargoes and papers
  shall be subject  to the requirements of any operators  of the Vessel and
  any applicable Governmental Agencies. 

        SECTION 13.  Registry of Vessel.   The Shipowner will not  transfer
  or  change the flag  or port  of documentation of the  Vessel without the
  written consent of the Trustee first had and obtained, which such consent
  shall  not be unreasonably withheld, and  any such written consent to any
  one transfer  or change of  flag or  port of documentation  shall not  be
  construed to be a waiver of this provision with respect to any subsequent
  proposed  transfer or  change of  flag or  port of  documentation.   Upon
  request of the Shipowner, the Trustee will consent to a change of name of
  the Vessel. 

        SECTION  14.  Charters, Etc.   The Shipowner will not sell, charter
  for  a period in excess of twelve  (12) months or for a period reasonably
  expected  to exceed twelve  (12) months, transfer or  mortgage the Vessel
  without the  written consent of  the Trustee, which consent  shall not be
  unreasonably withheld.   Any such written consent to any one sale, demise
  charter, time charter, mortgage or  transfer shall not be construed to be
  a waiver of this provision with respect  to any subsequent proposed sale,
  demise  charter,  time charter,  mortgage  or transfer.   Any  such sale,
  demise charter, time charter, transfer or mortgage of the Vessel shall be
  subject  to the  provisions of  this Mortgage  and the lien  thereof, and
  shall not affect the liabilities of the Shipowner hereunder. 

        SECTION  15.   Insurance.   (a)    The Shipowner  will, at  its own
  expense, when  and so long as this Mortgage  shall be outstanding, insure
  or cause to  be insured the Vessel against the  risks indicated below, in
  addition  to such  other risks  which should  be covered  by experienced,
  prudent,  and  responsible companies  engaged  in  the offshore  contract
  drilling  of hydrocarbons  in places  and under conditions  comparable to
  those in  which the Vessel is  employed from time to  time and possessing
  financial  and  operating   characteristics  similar  to   the  Borrowers
  ("Similar  Companies")  in  accordance   with  the  usual  and  customary
  practices of Similar Companies, and  keep her insured, in lawful money of
  the  United  States, for  not  less  than  the higher  of  (i)  the  full
  commercial value  of such Vessel  and (ii)  the amount  of coverage  that
  would  be obtained by Similar Companies on such Vessel.  The Vessel 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 be on the basis of "new for old" with no deduction for depreciation
  and cover marine and war risk perils, on hull and machinery, and shall be
  maintained in  the broadest forms  available in the  American or  British
  insurance  markets for  vessels of  the same  type as  the Vessel.   Such
  insurance shall  not include  a deductible  or self-insured retention  in
  excess of  USD 250,000 per occurrence.   The Shipowner  shall also obtain
  such  workmen's  compensation  or   longshoremen's  and  harbor  worker's
  insurance as shall be required by applicable law,  including endorsements
  for  Outer  Continental  Shelf  operations,  borrowed  servant, voluntary
  compensation, and  in rem claims.   In addition, the  Shipowner shall, at
  its own  expense, furnish to  the Trustee a  mortgagee's single  interest
  policy (or shall cause the hull and machine insurance on the Vessel to be
  endorsed  to afford breach  of warranty  coverage for the  benefit of the
  Trustee)  providing coverage  in an  amount equal  to at  least the  full
  commercial  value  of the  Vessel.   Such mortgagee's  interest insurance
  shall  be maintained in  the broadest form  available in the  American or
  British  markets for  vessels  of the  same  type as  the  Vessel through
  underwriters acceptable to  the Trustee.  The Vessel shall  not undertake
  any  drilling operations, not carry  any cargoes or proceed  into an area
  then excluded by trading warranties under its marine or war risk policies
  (including  protection and  indemnity)  without obtaining  all  necessary
  additional coverage, satisfactory in  form and substance, and evidence of
  which shall be furnished, to the Trustee.

        (b)   The  policy  or  policies of  insurance  shall  be issued  by
  responsible  underwriters  acceptable  to  the   Trustee,  shall  contain
  conditions,  terms,   stipulations  and  insuring   covenants  reasonably
  satisfactory to the Trustee and shall be kept in full force and effect by
  the Shipowner  so long as this  Mortgage shall be outstanding.   All such
  policies, binders and other interim insurance contracts shall be executed
  and issued in  the name of the  Shipowner and shall provide  that loss be
  payable to the Trustee for distribution by it to itself and the Shipowner
  as their interests may appear.   Copies of all such policies, binders and
  other  interim insurance contracts  shall be deposited  with the Trustee.
  The  Shipowner  shall furnish  to  the Trustee  annually, not  later than
  December 31st, a  detailed report signed  by a  firm of marine  insurance
  brokers satisfactory  to the Trustee  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 Section 15.

        (c)   In addition,  the Shipowner  shall maintain  or cause  to  be
  maintained  protection  and indemnity  insurance, including  coverage for
  contractual  liability,   contractual  and  legal   wreck  removal,  crew
  coverage, excess  collision, salvage, general average,  care, custody and
  control coverage  through underwriters or associations  acceptable to the
  Trustee in  an amount equal to the higher  of (i) the market value of the
  Vessel and (ii) the amount of coverage that would  be obtained by Similar
  Companies  on the Vessel, provided, however, that war risk protection and
  indemnity  insurance shall be  in an  amount not less than  the amount of
  insurance  against  total  loss.   Such  insurance  shall  not include  a
  deductible  or  self-insured  retention  in  excess  of  USD  250,000 per
  occurrence.

        (d)  Such insurance  policies shall provide for at least  ten days'
  or, in the case of any policy covering war risk perils, seven days' prior
  notice  to be given to the Trustee  by the underwriters or association in
  the  event of (i)  cancellation or  reduction in coverage  (except in the
  case  of war risk insurance) or (ii) the  failure of the Shipowner to pay
  any premium or call which would suspend coverage under  the policy or the
  payment  of a  claim  thereunder.   A  copy of  such  insurance  shall be
  furnished to the Trustee.

        (e)   Unless otherwise  required by  the Trustee  by notice  to the
  underwriters, although the following insurance is payable to the Trustee,
  (i) any loss under any insurance on the Vessel with respect to protection
  and indemnity risks may be paid directly to the Shipowner 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 clause  (i) above) 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
  Shipowner shall have first fully  repaired the damage or paid all  of the
  salvage  or  other  charges,  may  pay  the  Shipowner  as  reimbursement
  therefor;  provided,  however, that  if  such damage  involves a  loss in
  excess  of $500,000, the underwriters shall not make such payment without
  first obtaining  the written consent  thereto of the  Trustee.  Any  loss
  covered by  this paragraph which is  paid to the Trustee  but which might
  have  been paid,  in accordance  with the  provisions of  this paragraph,
  directly to the Shipowner or others, shall be paid by the Trustee  to, or
  as directed  by, the Shipowner and  all other payments to  the Trustee of
  losses covered  by this paragraph  shall be  paid by the  Trustee to  the
  Lender  for  application  pursuant  to Section  9.4  of  the Amended  and
  Restated Agreement.

        (f)   In  the event of  an actual or  constructive total  loss or a
  compromised  constructive total  loss or  requisition of the  Vessel, all
  insurance payments therefor  shall be paid to the Trustee.  The Shipowner
  shall  not declare  or  agree  with underwriters  that  the  Vessel is  a
  constructive or  compromised, agreed or arranged  constructive total loss
  without the prior written consent of the Trustee.

        (g)   In the event of an  actual or constructive total loss of  the
  Vessel, the Trustee  shall retain out of the insurance  payments received
  on account  of  such loss  and held  by the  Trustee  in accordance  with
  Section 305  of the  Trust Indenture, any  sum or sums  that shall  be or
  become  owing the Trustee  under this  Mortgage for the cost,  if any, of
  collecting  the  insurance,  which  sum or  sums  shall  become the  sole
  property  of  the  Trustee,  and  pay  the  balance  to  the  Lender  for
  application  pursuant  to  Section  9.4  of  the  Amended  and   Restated
  Agreement.

        (h)   The Shipowner shall  at all times during which the  Vessel is
  operating within  the jurisdiction of the United States of America or the
  Commonwealth of Australia, maintain  or cause to be maintained  insurance
  or post bond or maintain  or cause to be maintained approved  evidence of
  financial responsibility with  respect to the Vessel to cover  the actual
  cost of removal  of discharged oil for which the  Shipowner or the Vessel
  may  be held strictly liable (or held liable due to the negligence of the
  Shipowner,  any charterer or  any other Person) under  any legislation or
  applicable laws  including, without  limitation, the  Clean Water  Act of
  1977,  the Oil Pollution Act of 1990 or the Outer Continental Shelf Lands
  Act, or  under any legislation or  applicable laws which, in  the future,
  may apply  to the  Vessel or  to the Shipowner;  and the  Shipowner shall
  maintain  insurance  covering  similar  pollution  risks  or  liabilities
  incident thereto under  any law, regulation, or judicial decision  of any
  foreign  jurisdiction or  jurisdictions or political  subdivision thereof
  applicable to the Shipowner, the Vessel, or its operations.

        SECTION  16.    Reimbursement  of  Expenses.   The  Shipowner  will
  reimburse the Trustee promptly, with interest at the rate provided for in
  Section  8.3 of  the  Amended  and Restated  Agreement  for  any and  all
  expenditures which  the Trustee may  from time to  time make,  lay out or
  expend in providing such protection in respect of insurance, discharge or
  purchase of liens, taxes,  dues, assessments, governmental charges, fines
  and  penalties  lawfully  imposed,  repairs,  attorney's fees  and  other
  matters as  the Shipowner  is obligated herein  to provide, but  fails to
  provide within the  time required.  Such  obligation of the  Shipowner to
  reimburse  the Trustee shall  be an additional indebtedness  due from the
  Shipowner,  secured  by this  Mortgage,  and  shall  be  payable  by  the
  Shipowner  on demand.  The Trustee, though  privileged to do so, shall be
  under  no obligation to make any  such expenditures, nor shall the making
  thereof relieve the Shipowner of any default in that respect. 

        SECTION  17.   Office  for  Service  of  Process.    The  Shipowner
  maintains an office at 901 Threadneedle, Suite 200, Houston, Texas 77079,
  at  which summons and/or other legal process  in any suit based on rights
  arising out of  this Mortgage, the Amended and  Restated Agreement or the
  Notes may  be served.  The  Shipowner agrees  that  it will  continue  to
  maintain an office at such address, or at such other address as shall  be
  designated from  time to time  by notice to  the Trustee.   The Shipowner
  agrees that any such process shall be deemed duly served  if left at such
  address  (or if  notice of a  changed address  shall have  been given the
  Trustee, at such  changed address) whether or not  the Shipowner shall in
  fact maintain an office  at such address at the  time of such service  or
  shall in fact receive or have notice of such process. 

        SECTION 18.   Requisition,  Seizure or  Forfeiture.  The  Shipowner
  covenants and agrees  that, in  the event the  Vessel is   requisitioned,
  seized  or forfeited by any Government or by any group or body purporting
  to  act as  such,  and such  requisition, seizure  or  forfeiture is  not
  reversed and the  Vessel released therefrom within thirty (30)  days, the
  Shipowner,  subject to the provision in the next following sentence, will
  cause the Notes to be prepaid on a date not later than one hundred eighty
  (180) days after such requisition, seizure or  forfeiture.  To the extent
  that the Shipowner is able or entitled to do so, the Shipowner will cause
  all  payments  made in  respect  of  any  such  requisition,  seizure  or
  forfeiture to  be  paid to  the Trustee  to be  held and  applied by  the
  Trustee for prepayment of the Notes in the manner set forth in Section 11
  of Article  II of  this  Mortgage; provided  however,  that if  any  such
  requisition, seizure or forfeiture applies only to the use of the Vessel,
  the provisions of this  Section 18 shall not apply if and so  long as the
  Shipowner shall  not be in default  in respect of any  of its obligations
  under  this Mortgage,  the Amended  and Restated  Agreement or  the Notes
  secured hereby. 

                                  ARTICLE II
                        EVENTS OF DEFAULT AND REMEDIES

        SECTION 1.  Generally.   In case any one  or more of the  following
  events herein termed "Events of Default" shall occur and be continuing: 

              (a)   Failure  by the Shipowner  to pay any  amount due under
                    the  Notes when  due, subject  to the  applicable grace
                    period; or 

              (b)   Default  in  the  due   and  punctual  observance   and
                    performance of any of the provisions of the Amended and
                    Restated  Agreement or  the  Trust Indenture  and  same
                    shall  continue  unremedied  for  ten (10)  days  after
                    notice thereof; or 

              (c)   Default  in  the   due  and  punctual  observance   and
                    performance of any of  the provisions of Sections 5, 6,
                    9, 10, 11, 12, 13,  14, 15 and 18 of Article  I hereof;
                    or  

              (d)   Default  in   the  due  and  punctual   observance  and
                    performance of any other provision of this Mortgage and
                    the same  shall continue  unremedied for ten  (10) days
                    after notice to the Shipowner.
   
        THEN, upon the  occurrence and continuance of any Event  of Default
  after the  applicable grace period, and  in each and every  such case, in
  addition to the rights  and powers conferred on  it by law or  in equity,
  the Trustee shall have the right to:

        (1)   Declare the Notes, together with all other sums payable under
              the  Amended and Restated Agreement and  this Mortgage, to be
              due and  payable immediately,  and upon such  declaration the
              same shall  become due  and be  immediately due and  payable,
              without  the need  to  obtain a  judgment  or for  any  other
              formality; any amount not paid  when due shall bear  interest
              at  the rate provided for  in Section 8.3 of  the Amended and
              Restated Agreement; 

        (2)   Exercise  all  the rights  and  remedies  in foreclosure  and
              otherwise given to mortgagees by the laws  and regulations of
              the United States of  America, the Commonwealth of Australia,
              any  of the  States or  Territories of  Australia, or  of the
              countries  wherein the Vessel  shall then be found  or of any
              country  wherein the Vessel may thereafter be found or of any
              other applicable jurisdiction; 

        (3)   Bring suit at law, in equity or in  admiralty, as the Trustee
              may be advised,  to recover judgment for any and  all amounts
              due  under the Notes, or otherwise hereunder, and collect the
              same  from the Shipowner or any other obligation on the Notes
              and/or  out  of  either the  income  from  operations  of the
              Shipowner or  from the proceeds  from the disposition  of the
              Vessel. 

        (4)   Take and  enter into possession  of the Vessel  without legal
              process  wherever the same may be; and the Shipowner or other
              person in  possession, forthwith upon demand  of the Trustee,
              shall surrender to the  Trustee possession of the Vessel  and
              the  Trustee  may,  without  being  responsible for  loss  or
              damage, hold,  lay up,  lease, charter, operate  or otherwise
              use the  Vessel for such time  and upon such terms  as it may
              deem  to be for  its best advantage, accounting  only for the
              net profits, if any, arising from such  use of the Vessel and
              charging upon all receipts from the use of the Vessel or from
              the sale thereof by court  proceedings or pursuant to  clause
              (5) next following, all  costs, expenses, charges, damages or
              losses by reason of such  use; and if at any time the Trustee
              shall avail itself of  the right herein given it  to take the
              Vessel  and shall take the Vessel, the Trustee shall have the
              right to  dock the Vessel for a reasonable  time at any dock,
              pier or other premises of the Shipowner without charge, or to
              dock  it  any other  place  at the  cost  and expense  of the
              Shipowner;

        (5)   Without legal process and  without being responsible for loss
              or damage, sell the Vessel  at such place and at such time as
              the Trustee may specify and in such manner as the Trustee may
              deem  advisable  free  from any  claim  by  the  Shipowner in
              admiralty,  in  equity, at  law or  by  statute, after  first
              giving notice of the time  and place of any such sale  with a
              general description of the property in the following manner: 

              (a)   by publishing such notice for ten consecutive days in a
                    daily  newspaper  of  general circulation  published in
                    Houston, Texas; 

              (b)   if the place of sale should not be Houston, Texas, then
                    also  by  publication of  a similar  notice in  a daily
                    newspaper, if any, published at the place of sale; and 

              (c)   by mailing a similar notice to the Shipowner on the day
                    of first publication. 

  The Trustee may  adjourn any such sale from time  to time by announcement
  at the time and place appointed for such sale or for such adjourned sale,
  and without further notice or  publication the Trustee may make  any such
  sale at the time and place to which the same shall be so  adjourned.  Any
  such sale  may  be conducted  without bringing  the Vessel  to the  place
  designated for such sale and in such manner as the Trustee may deem to be
  for its best advantage. 

        SECTION 2.    Sale of  Vessel.   Any  sale of  the  Vessel made  in
  pursuance  of this  Mortgage,  whether under  the  power of  sale  hereby
  granted or any  judicial proceedings, shall operate to divest  all right,
  title and interest  of any nature whatsoever of the Shipowner therein and
  thereto, and shall bar the Shipowner, its successors and assigns, and all
  persons  claiming  by, through  or under  them.   At  any such  sale, the
  Trustee may bid for and purchase the Vessel and  upon compliance with the
  terms of sale may hold, retain and dispense of the Vessel without further
  accountability  therefor.  In case of any such sale, the Trustee shall be
  entitled, for the purpose of  making settlement or payment for the Vessel
  purchased, to use and apply  to the outstanding Notes the sums payable to
  the  Trustee out of the net proceeds of  such sale after allowing for the
  costs and expense  of sale and other  charges; and thereupon the  Trustee
  shall be  credited,  on account  of  such purchase  price, with  the  net
  proceeds that shall have been  so credited upon the Notes.   No purchaser
  of the Vessel shall be bound to inquire whether notice has been given, or
  whether any default has occurred, or as  to the propriety of the sale  or
  as to the application of the proceeds thereof. 

        SECTION 3.  Trustee  as Attorney-in-Fact for Shipowner. The Trustee
  is  hereby appointed  attorney-in-fact of  the Shipowner  to execute  and
  deliver to any purchaser aforesaid, and  is hereby vested with full power
  and authority to make, in the name and in behalf of the Shipowner, a good
  conveyance of the title to the Vessel.   In the event of the sale of  the
  Vessel, under any power herein contained, the Shipowner will, if and when
  required by the Trustee, execute such form of conveyance of the Vessel as
  the Trustee may direct or approve. 

        SECTION 4.  Trustee Receipt of Moneys upon Certain Events.
   The Trustee is hereby appointed  attorney-in-fact of the Shipowner  upon
  the occurrence  and continuance beyond any applicable period of grace  of
  any Event  of Default, in the  name of the Shipowner  to demand, collect,
  receive, compromise  and sue for, so far as may  be permitted by law, all
  freights, hire, earnings,  issues, revenues,  income and  profits of  the
  Vessel and all amounts due from underwriters under any insurance premiums
  or  otherwise, salvage  awards  and  recoveries  in  general  average  or
  otherwise,  and all other sums, due or  to become due at  the time of the
  happening of any Event of Default in respect of the Vessel, or in respect
  of any insurance thereon from  any person whomsoever, and to  make, give,
  and  execute  in  the  name  of  the  Shipowner  acquittances,  receipts,
  releases,  or  other  discharges  for the  same,  whether  under seal  or
  otherwise,  and to endorse  and accept  in the name of  the Shipowner all
  checks, notes, drafts, warrants, agreements  and all other instruments in
  writing with respect to the foregoing. 

        SECTION 5.   Delivery of Vessel; Receiver.   Whenever any right  to
  enter and  take possession of the  Vessel accrues to the  Trustee, it may
  require  the Shipowner to deliver, and  the Shipowner shall on demand, at
  its  own  cost  and expense  deliver the  Vessel  to the  Trustee  at the
  location designated by the  Trustee.  If any  legal proceedings shall  be
  taken  to enforce  any right under  this Mortgage,  the Trustee  shall be
  entitled as a matter of right to the appointment of a receiver or manager
  or receiver  and manager (the "Receiver") of the Vessel and the freights,
  hire, earnings, issues, revenues, income and profits due or to become due
  and arising from the operation thereof.   Any Receiver so appointed shall
  be the agent  of the Shipowner unless at any  time otherwise specified by
  the  Trustee.    The  Shipowner  shall  be  solely  responsible  for  the
  Receiver's  renumeration, costs and expenses.  The Trustee may at anytime
  terminate the appointment of the Receiver.  In addition to all the rights
  and  powers conferred in  the Receiver  at law and in  equity, a Receiver
  shall be entitled to exercise all of the powers and rights conferred upon
  the Trustee under this Mortgage or any other Loan Document.

        SECTION 6.  Trustee Enforcement of Liens.  The Shipowner authorizes
  and empowers the Trustee or its appointee or any of them to appear in the
  name of  the Shipowner, its successors  and assigns, in any  court of any
  country or nation of the world where a suit is pending against the Vessel
  from which the Vessel has  not been released and to take such proceedings
  as to it may seem proper towards  the defense of such suit and  discharge
  of  such  lien,  in the  event that  the  Shipowner shall  not  be taking
  proceedings  reasonably satisfactory to the Trustee, and in such case all
  expenditures  made or incurred  by the  Trustee or its  appointee for the
  purpose  of  such  defense or  discharge shall  be  a debt  due  from the
  Shipowner,  its  successors and  assigns,  to the  Trustee, and  shall be
  secured by the lien of this Mortgage in like manner  and extent as if the
  amount and description thereof were written herein. 

        SECTION   7.    Acceleration   of  Notes.     Upon  declaration  of
  acceleration pursuant  to clause  (1) of Section  1 of  this Article  II,
  then, upon written  demand of the Trustee, the Shipowner  will pay to the
  Trustee the  whole amount due  and payable on the  Notes and in  case the
  Shipowner shall  fail to  pay the  same forthwith  upon such  demand, the
  Trustee shall be entitled to recover judgment for the whole amount so due
  and unpaid, together with such further amounts as shall  be sufficient to
  cover the  reasonable  costs  and  expenses of  collection,  including  a
  reasonable  compensation  to  the  Trustee  and its  agents,  solicitors,
  attorneys  and   counsel  and   any  necessary  advances,   expenses  and
  liabilities  made  or  incurred  by  them  hereunder,  including  without
  limitation, solicitors costs on a solicitors  and own client basis.   All
  moneys  collected by the Trustee under this Section 7 shall be applied by
  the  Trustee in  accordance  with the  provisions of  Section 11  of this
  Article II. 

        SECTION 8.  Powers of Trustee Cumulative.  Each and every power and
  remedy herein  given to the Trustee  shall be cumulative and  shall be in
  addition to  every other power and  remedy herein given.   Each and every
  power and remedy given herein  may be exercised from time to time  and as
  often and in such  order as may be  deemed expedient by the  Trustee, and
  the exercise  or the beginning  of the  exercise of any  power or  remedy
  shall  not be construed  to be a waiver  of the right  to exercise at the
  same time or thereafter any other power or remedy given herein.  No delay
  or omission by  the Trustee in the  exercise of any right  or power or in
  the pursuance of any remedy accruing upon the occurrence  of any Event of
  Default as  above defined  shall impair any  such right, power  or remedy
  given it or be construed to be  a waiver of the right to exercise at  the
  same  or  thereafter  any other  stated power  or  remedy.   No  delay or
  omission  by the Trustee in  the exercise of any given  right or power or
  remedy shall be or shall be construed to be a waiver of any such Event of
  Default or  to be any acquiescence  therein; nor shall  the acceptance by
  the Trustee  of any security or  of any payment  of or on account  of the
  Notes after any Event of Default or of any payment on account of any past
  due 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. 

        SECTION 9.   Cure of  Events of Default.   If at any  time after an
  Event of Default  and declaration of acceleration pursuant to  clause (1)
  of  Section 1  of this  Article II  and prior  to any  foreclosure action
  having  been taken  by the  Trustee under  any of  the Loan  Documents to
  realize upon  the  security  provided by  such documents,  the  Shipowner
  offers completely to cure all Events of Default and  to pay all expenses,
  advances and damages to the Trustee consequent to such Events of Default,
  with interest  at the rate provided for in Section 8.3 of the Amended and
  Restated  Agreement, then  and in  the case  of the  first such  Event of
  Default, the Trustee  shall, and in the case of  any succeeding Events of
  Default, the  Trustee may accept such  offer and payment  and restore the
  Shipowner to its  former position. However, such action shall  not affect
  any subsequent Event of Default or impair any rights consequent thereon. 

        SECTION 10.  Abandonment.  In case the Trustee shall have proceeded
  to enforce any right, power or remedy under this Mortgage by foreclosure,
  entry  or otherwise, and such proceedings shall have been discontinued or
  abandoned for any reason or shall  have been determined adversely to  the
  Trustee then and  in every such case the Shipowner  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 Mortgage, and
  all rights,  remedies and powers of  the Trustee shall continue  as if no
  such proceedings had been taken. 

        SECTION 11.   Application of Proceeds  from Sale or Use  of Vessel.
  The  proceeds of  any sale  of the  Vessel  and the  net earnings  of any
  charter, operation or other use of the Vessel by the Trustee under any of
  the  powers herein specified and any and  all other money received by the
  Trustee  pursuant to  or  under the  terms  of this  Mortgage  or  in any
  proceedings hereunder, the application of which  has not elsewhere herein
  been specifically provided, shall be applied as follows: 

        FIRST:   To the  payment of  all reasonable  expenses of any  sale,
        retaking, solicitor's  and attorney's fees, court  costs, necessary
        repairs and any other expenses or advances  made or incurred by the
        Trustee for  the protection of its  rights or the pursuance  of its
        remedies hereunder and reasonable  compensation to the Trustee, its
        agents,  solicitors,  attorneys   and  counsel,  including  without
        limitation, solicitors costs on a solicitors  and own client basis,
        and to  provide adequate indemnity against  liens claiming priority
        over or equality with the lien of this Mortgage; 

        SECOND:  To the payment of the Indebtedness hereby secured pursuant
        to Section 9.4  of the Amended and Restated Agreement,  whether due
        or not, including interest thereon to the date of such payment; and


        THIRD:  To  the payment of any surplus thereafter  remaining to the
        Shipowner or to whomsoever may be entitled thereto. 

        SECTION 12.  Rights of Shipowner.  Until one or more of  the Events
  of Default herein  above described shall happen, the Shipowner  (a) shall
  be suffered  and permitted  to retain actual  possession and  use of  the
  Vessel; (b) may at any time alter, repair, change or re-equip the Vessel,
  subject, however, to the provisions of Section 11 of Article I hereof and
  (c) shall have the right, from time to time in its discretion and without
  application  to the Trustee,  and without obtaining a  release thereof by
  the  Trustee, to  dispose of,  free from  the lien  hereof, any  boilers,
  engines, machinery, masts, spars, sails, rigging, boats, anchors, chains,
  tackle, apparel,  furniture, fittings, drilling  equipment, pumps,  drill
  pipes, collars,  racking, housing, spare parts  and supporting inventory,
  vehicles or  living quarters or  any other appurtenances  of the  Vessel,
  first  or   simultaneously  replacing  the  same   by  boilers,  engines,
  machinery, masts, spars, sails,  rigging, boats, anchors, chains, tackle,
  apparel,  furniture, fittings,  drilling equipment,  pumps, drill  pipes,
  collars, racking, housing, spare parts and supporting inventory, vehicles
  or  living quarters or other appurtenance of substantially equal value to
  the Shipowner, which shall forthwith  become subject to the lien  of this
  Mortgage as a preferred mortgage thereon. 

        SECTION 13. Notice  of  Event of  Default.    Immediately upon  the
  occurrence of an Event of  Default (as defined in Section 1,  Article II,
  hereof), or of any event which with notice or lapse of time or both would
  constitute an Event of Default, the Shipowner shall notify the Trustee of
  such  occurrence  in  writing  setting  forth  in  reasonable detail  the
  circumstances surrounding such  Event of Default or other event  and what
  action the Shipowner proposes to take with respect thereto.

        SECTION 14.  Severability.  (a)  If any  provision of this Mortgage
  should  be deemed  invalid or  shall be  deemed to  affect adversely  the
  preferred  status  of  this  Mortgage  under  any  applicable  law,  such
  provision  shall cease to  be a part  of and  shall be severed  from this
  Mortgage without  affecting the remaining provisions,  which shall remain
  in full force and effect. 

        (b)   In the event  that this Mortgage  or any of  the documents or
  instruments which may  from time to  time be delivered  hereunder or  any
  provision hereof shall  be deemed invalidated by present or future law of
  any  nation or  by  decision of  any  court, this  shall  not  affect the
  validity and/or enforceability of all or any other parts of this Mortgage
  and,  in any  such case,  the Shipowner  covenants and  agrees, that,  on
  demand, it  will execute and  deliver such other  and further  agreements
  and/or documents  and/or instruments and do such things as the Trustee in
  its sole discretion may deem to be necessary to carry out the true intent
  of this Mortgage. 

                                  ARTICLE III
                               SUNDRY PROVISIONS

        SECTION 1.   Notices.  Any  notice to be given  under this Mortgage
  shall,  except as otherwise  expressly provided herein, be  given by hand
  delivering the same, or through registered United States mail  (effective
  upon receipt) or by telex or telefax, as follows:

              (a)   to the Trustee:

              BANK ONE, TEXAS, NA
              910 Travis, 6th Floor
              Houston, Texas  77002-5860
              Attention:  Mr. Roark Ashie
              Telephone No. (713) 751-6834
              Telefax No. (713) 751-0285

              (b)   To the Shipowner:

              READING & BATES (A) Pty Ltd.
              c/o Reading & Bates Exploration Co.
              901 Threadneedle, Suite 200
              Houston, Texas  77079
              Attention:  President
              Telephone No. (713) 496-5000
              Telefax No. (713) 496-0285
              Telex No. 762305

  unless  another address  shall be  furnished in writing  by the  party to
  receive such notice to the party giving such notice. 

        SECTION  2.   Execution  in Counterparts.    This Mortgage  may  be
  executed in any number of counterparts and all such counterparts executed
  and  delivered each as an original shall  constitute but one and the same
  instrument. 

        SECTION 3.   Interest of Shipowner.  The  interest of the Shipowner
  in the  Vessel and  the interest  mortgaged by this  Mortgage is  that of
  absolute and sole ownership. 

        SECTION 4.   Successors and Assigns.  All the  covenants, promises,
  stipulations and agreements  of the Shipowner in this  Mortgage contained
  shall bind the Shipowner  and its successors and assigns  and shall inure
  to the benefit of the Trustee and its successors and assigns. 

        SECTION 5.   Amendment and  Supplements.  This Mortgage  may not be
  modified,  amended or  supplemented  in any  respect,  or any  waiver  or
  consent  given in regard to any of the provisions hereof, except with the
  written  consent  of   the  Trustee,  and   then  modified,  amended   or
  supplemented only by  an instrument in writing executed by  the Shipowner
  and Trustee. 

        SECTION  6.   Certain  Definitions.    For  all  purposes  of  this
  Mortgage, unless the context otherwise requires: 

        "Corporations Law" means the Corporations Law as set out in Section
  82  of the Corporations Act of 1989, as amended, supplemented or replaced
  from  time to  time, as applied  in the  State of  Western Australia and,
  where  appropriate, the other states and  territories of the Commonwealth
  of Australia."

        "Event of  Default"  has the  meaning set  forth  in Section  1  of
  Article II hereof. 

        "Insurance"  shall  mean  the   insurance  and  payments  therefrom
  referred to in Section 15 of Article I hereof. 

        "Permitted Liens" shall  mean (a) liens  for taxes, assessments  or
  other  governmental charges  or  levies not  at  the time  delinquent  or
  thereafter  payable without  penalty or  being contested  in  good faith,
  provided  provision is made to the reasonable satisfaction of the Trustee
  for the  eventual payment thereof in the  event it is found  that such is
  payable by the Shipowner;

              (b)  liens of carriers, warehousemen, mechanics, materialmen,
  landlords, operators  of, and participants  in, any oil,  gas or  mineral
  properties of the  Shipowner and maritime liens incurred in  the ordinary
  course of business for sums not overdue or being contested in good faith,
  provided  provision is made to the reasonable satisfaction of the Trustee
  for the eventual payment thereof in the event it is found  that such sums
  are payable by the Shipowner;

              (c)   liens incurred in  the ordinary course  of business  in
  connection with  workmen's compensation, unemployment  insurance or other
  forms  of governmental insurance or benefits, or to secure performance of
  tenders  and statutory obligations entered into in the ordinary course of
  business  or to  secure  obligations  on surety  or  appeal  bonds in  an
  aggregate  amount not exceeding  (i) USD 2,500,000 at any  one time, (ii)
  USD 5,000,000 in any  calendar year and  (iii) USD 10,000,000 during  the
  term of this Mortgage;

              (d)  judgment  liens in existence less than 30 days after the
  entry thereof or  with respect to which execution has  been stayed or the
  payment of which is covered in full by insurance;

              (e)  liens required by the terms of the Amended and  Restated
  Agreement; and

              (f)   liens  existing  as of  the date  of this  Mortgage and
  disclosed in writing to the Trustee.

        "Person" shall mean a corporation, association, partnership, trust,
  estate,  organization, individual,  government, political  subdivision or
  government agency. 

        "U.S.  Dollars" and  the  sign "USD"  each  shall mean  the  lawful
  currency of the United States of America. 

        All  capitalized terms used  herein but not defined  shall have the
  meaning given to them in the Amended and Restated Agreement.

        SECTION 7.  Currency Indemnity.

        (a)      If any payment is  made by the Shipowner  or if the  Lender
                 or  Trustee  receives  or  recovers   any  money  under  or
                 pursuant  to  this Mortgage  in a  currency other  than the
                 currency in  which the Indebtedness  is due, the  Shipowner
                 shall  as a  separate  and  additional liability  pay  such
                 additional amount (which  shall also be deemed  to comprise
                 part of  the moneys  secured by  this Mortgage)  as may  be
                 necessary  so that  after  conversion  of all  moneys  paid
                 under  or pursuant  to  this  Mortgage  or the  Notes,  the
                 Amended and Restated Agreement or  the Trust Indenture into
                 the currency  in which  the obligation  or liability is  so
                 due  and after  the payment of  all commission and expenses
                 (whether of like form or  not) the Lender or  Trustee shall
                 received net in its hand  an amount in that  currency equal
                 to the amount due and owing.

        (b)      Notwithstanding   anything  elsewhere   contained  in  this
                 Mortgage the  Shipowner covenants  that in  the event  that
                 any action whatsoever by the Lender or Trustee  against the
                 Shipowner to  recover any  of  the moneys  secured by  this
                 Mortgage or  owing under  the Notes,  Amended and  Restated
                 Agreement or Trust  Indenture, which results in  a judgment
                 or recovery or payment  of money denominated in a  currency
                 other  than  the  currency  in   which  the  obligation  or
                 liability of  the Shipowner  is due  against the  Shipowner
                 and  such judgment, recovery or payment  does not take into
                 account any change  adverse to the Lender or Trustee in the
                 rate of  exchange between the  currency of such  obligation
                 or liability of  the Shipowner and the currency of any such
                 judgment,  recovery  or  payment at  any  time  before  the
                 Shipowner's  liability  for  the  moneys  secured  by  this
                 Mortgage or  owing under  the Notes,  Amended and  Restated
                 Agreement or  Trust Indenture,  shall be  fully discharged,
                 then  the Shipowner's  liability shall  be extinguished  by
                 such judgment  recovery or  payment to the  extent only  of
                 any amount recovered  and shall continue in respect  of any
                 sum  by  which  the  amount recovered  falls  short  of the
                 moneys secured by  this Mortgage or owing  under the Notes,
                 Amended and Restated Agreement or Trust Indenture.

        (c)      For the  purposes of this  Section 7 the  Lender or Trustee
                 shall  convert an  amount  received  into the  currency  in
                 which the obligation  to pay is due ("due currency") at the
                 spot  rate  at which  the  Lender  or  Trustee  is able  to
                 purchase the due  currency with the amount received  at the
                 time of its receipt but if  the time of receipt is not on a
                 Business Day at the time  the transaction is dealt  with on
                 the next following  Business Day.  The  Shipowner satisfies
                 its  obligation to  pay  in the  due  currency only  to the
                 extent of the amount of  the due currency purchased  by the
                 Lender  or  Trustee  with the  amount  received  and  after
                 deducting the costs of the conversion.

        SECTION 8.   No Waiver of  Preferred Status.  No  provision of this
  Mortgage  shall be deemed  to constitute  a waiver by the  Trustee of the
  preferred  status hereof given by Section 39 of the Shipping Registration
  Act 1981 (Commonwealth),  and any provision of this Mortgage  which would
  otherwise constitute such a waiver shall to such extent be of no force or
  effect. 

        SECTION  9.  Governing Law.  THIS MORTGAGE SHALL BE GOVERNED BY AND
  CONSTRUED  IN ACCORDANCE  WITH THE  LAWS OF  WESTERN AUSTRALIA  AND WHERE
  APPLICABLE THE LAWS OF THE COMMONWEALTH OF AUSTRALIA.

        IN  WITNESS  WHEREOF,  this  Mortgage  has  been  executed  by  the
  Shipowner, as a deed, on the day and year first above written. 


                                READING & BATES (A) PTY LTD.


                                By:   ____________________________
                                       Name:  _____________________
                                       Title: _____________________

  THE COMMON SEAL OF         )
  READING & BATES (A)        )
  PTY. LTD. was hereunto     )       
  affixed by authority       )
  of the Board of Directors  )
  in the presence of:        )


  ________________________
  Director

  ________________________
  Director/Secretary 

<PAGE>
                               ACKNOWLEDGEMENT


  STATE OF TEXAS          
                          : s.s.
  COUNTY OF HARRIS        

        On this 27th  day of April, 1995, before me  personally appeared T.
  W. Nagle known to me to be a director of Reading & Bates (A) Pty. Ltd., a
  proprietary  limited  company  organized  under  the  Corporations   Laws
  (Western  Australia) 1990, the  party described in and  that executed the
  foregoing instrument  on behalf  of said corporation  acknowledged to  me
  that he signed his name thereto by authority of the Board of Directors of
  said company and as the free act and deed of such company.


                                      _____________________________
                                      Notary Public

<PAGE>
                                                                   EXHIBIT K
                                                     TO AMENDED AND RESTATED
                                                   CREDIT FACILITY AGREEMENT


         ASSIGNMENT, ASSUMPTION AND AMENDMENT NO. 2 TO TRUST INDENTURE


        THIS ASSIGNMENT, ASSUMPTION AND AMENDMENT  NO. 2 TO TRUST INDENTURE
  dated as  of  April  __,  1995, among  Reading  &  Bates  Corporation,  a
  corporation  organized  and  existing  under the  laws  of  the State  of
  Delaware  ("RBC"), Reading & Bates  Drilling Co., a corporation organized
  and existing under  the laws of the State of  Oklahoma ("RBD"), Reading &
  Bates  Exploration Co., a  corporation organized  and existing  under the
  laws  of  the State  of  Oklahoma  ("RBX"), Reading  and  Bates,  Inc., a
  corporation  organized  and  existing  under the  laws  of  the State  of
  Oklahoma  ("RBI"),  Reading  and  Bates  Borneo  Drilling  Co.,  Ltd.,  a
  corporation  organized  and  existing  under the  laws  of  the State  of
  Oklahoma  ("RBB"), Reading & Bates (A) Pty. Ltd., a corporation organized
  and existing under the laws of Australia ("RBA") (RBC, RBD, RBX, RBI, RBB
  and  RBA  being   referred  to  collectively   as  the  "Borrowers"   and
  individually as a "Borrower"),  Texas Commerce Bank National Association,
  as  Trustee, (Holder-Transferee  from the  Receiver  of New  First  City,
  Texas-Houston, N.A.,  successor in interest to  First City Texas-Houston,
  N.A.), a national banking association, as Trustee (the "Assignor"), which
  entity is executing  this document  solely for the  purposes of and  with
  respect to the  assignments and assumptions being made hereunder  and not
  with respect  to any amendment  or other matter  hereunder,and Bank  One,
  Texas, N.A., a national banking association, as Trustee (the "Assignee").

                             W I T N E S S E T H:

              WHEREAS, pursuant  to the Credit Facility  Agreement dated as
  of  March 27, 1991, as  amended May 24,  1991, June 28,  1991, August 30,
  1991,  June 30, 1992 and February 25,  1993 (as so amended, the "Original
  Credit  Agreement"), Internationale  Nederlanden Bank (formerly  known as
  NMB Postbank Groep, the "Lender") agreed to provide funding to certain of
  the Borrowers in the aggregate principal amount of up to USD 112,000,000;
  and

              WHEREAS,  the  Borrowers and  the  Lender  have restated  the
  Original  Credit Agreement  in order  to add  RBB and  RBA  as Borrowers,
  increase the  amount of Facility E,  add a new letter  of credit facility
  and amend certain terms and  covenants (the "Restated Credit Agreement");
  and

              WHEREAS, the  Assignor, by operation of  merger, succeeded to
  all of the rights and obligations of New First City, Texas-Houston, N.A.,
  the trustee under that certain Trust Indenture dated March 29,  1991 (the
  "Indenture")  among the Borrowers  and New First City,  pursuant to which
  the  Assignor agreed  to act  on  behalf of  the Lender  with  respect to
  certain  security interests  granted  by the  Borrowers  to  secure their
  obligations under the Original Credit Agreement; and

              WHEREAS, the Indenture was  amended pursuant to Amendment No.
  1 to Trust Indenture dated February 25, 1993 to,  among other things, add
  the JACK BATES, Official No. 906283 as a Vessel thereto; and

              WHEREAS, the Assignee meets all of the criteria  contained in
  Section  307 of  the Indenture  and wishes  to act  as Trustee  under the
  Indenture; and

              WHEREAS,  the  Lender  and  the  Borrowers  desire  that  the
  Assignee  assume the  rights and  obligations of  the Assignor  under the
  terms of the Indenture, as amended herein; and

              WHEREAS, the Lenders, the  Borrowers and the Assignee wish to
  further amend  the terms of the  Indenture in order to  reflect the terms
  and conditions of the Restated Credit Agreement.

              NOW THEREFORE, in consideration of the above recitals and for
  other good and  valuable consideration,  the receipt  and sufficiency  of
  which is  hereby acknowledged, the  parties agree to  assign, assume  and
  amend the Indenture effective as of the date hereof as follows:

                           Assignment and Assumption

        1.    The  Assignor hereby  sells,  transfers,  assigns and  grants
  absolutely  and not  by way  of  security, all  of its  right,  title and
  interest   and   responsibilities,   powers,   duties,   liabilities  and
  obligations in, to and under the Indenture to the Assignee.

        2.    In connection with this Assignment, Assumption and Amendment,
  the Borrowers represent and warrant to the Assignee that the Indenture is
  in full force and effect and there are no events which would constitute a
  default by the Borrowers under the terms of the Indenture or events which
  would, with the passage of time or the giving  of notice, constitute such
  an Event of Default.

        3.    The Assignee hereby acknowledges receipt of the Indenture and
  expressly  agrees to accept  the position of  trustee under,  to become a
  party  to, and  be  bound by,  all  of the  terms and  provisions  of the
  Indenture, as amended hereby.

        4.    The  Assignee hereby agrees to perform and comply with all of
  the  terms and conditions of, and hereby  assumes all of the right, title
  and   interest,  responsibilities,   powers,   duties,   liabilities  and
  obligations of  the Assignor under, the Indenture from and after the date
  hereof.

        5.    The  Assignor  is hereby  released  and  discharged from  its
  responsibilities, powers, duties,  liabilities and obligations under  the
  Indenture.

        6.    The Assignor agrees  that at any time and  from time to time,
  upon the written request of the Assignee,  the Assignor will promptly and
  duly  execute  and  deliver  any and  all  such  further instruments  and
  documents  as  may  be  reasonably  necessary  to  effect  the  transfers
  expressly  made  by  Assignor   under  this  Assignment,  Assumption  and
  Amendment,  including,  without  limitation,  assignments   of  financing
  statements, and assignments and releases of vessel mortgages.

        7.    The Assignee  shall hereinafter,  for all purposes  under the
  Indenture  and the other Loan Documents be deemed the Trustee without any
  further acts or instruments on the part of any Person.

                            Amendments to Indenture

        The  Borrowers and  the  Assignee hereby  agree that  the Indenture
  shall be amended as follows:

        A.    All  references in the  Indenture to  the Trustee  shall mean
  Bank  One, Texas, N.A., a national banking association with its principal
  place of business at 910 Travis, Houston, Texas  77002.

        B.    The  definition of  "Mortgages"  in the  Indenture  is hereby
  amended to read as follows:

              "Mortgages"  means the  First Preferred  Fleet Mortgage
        granted  by   RBX  to  the  Trustee,   the  Australian  First
        Registered Ship Mortgage  granted by RBA to the  Trustee, the
        First Preferred  Ship Mortgage granted by RBI to the Trustee,
        the  First Preferred  Ship  Mortgage granted  by  RBD  to the
        Trustee, the  Panamanian First Naval Mortgage  granted by RBB
        to the  Trustee, and the Preferred Fleet  Mortgage granted by
        RBD to  the Trustee,  all as  amended from time  to time  and
        executed  or  to be  executed  in respect  of the  Vessels as
        security for all  amounts due  and payable  under the  Credit
        Agreement.

        C.    The definition  of Pledges in the Indenture is hereby amended
  to read as follows:

              "Pledges"  means  the  pledge  of  all  of  the   issued  and
        outstanding shares of  RBD by RBC, the pledge of  all of the issued
        and outstanding shares of RBI,  RBX and RBB by RBD, and  the pledge
        of  all of the issued and outstanding shares  of RBA by RBX, all in
        favor of  the Trustee  as of  the date  hereof (with all  renewals,
        extensions and  amendments thereof) as security  for the Borrowers'
        obligations under the Loan Documents.

        D.    The  definition  of  "Vessels"  in  the Indenture  is  hereby
  amended to read as follows:

              "Vessels"  means  the  Australian  flag  rig  RON  TAPPMEYER,
        Official No.  ______, the  United States  flag rigs  D.R.  STEWART,
        Official No. 626904, D.K. MCINTOSH, Official No. 591662, W.D. KENT,
        Official No. 583169, M.G. HULME JR., Official No. 651644,  RANDOLPH
        YOST, Official No.  601699, ROGER W.  MOWELL, Official No.  645360,
        J.T.  ANGEL,  Official No.  651645,  JIM  CUNNINGHAM, Official  No.
        651643, JACK BATES, Official No. 906283 and the Panamanian flag rig
        CHARLEY GRAVES, Permanent Patente No. 6618-76-B.

        E.    All  references  in  the  Indenture  to the  Original  Credit
  Facility Agreement shall mean the Restated Credit Agreement. 

        F.    Except as specifically amended by this Assignment, Assumption
  and  Amendment, all of  the terms and  provisions of  the Indenture shall
  remain in full force and effect.

        All capitalized terms used herein but not defined herein shall have
  the meanings given to them in the Indenture.

        THIS ASSIGNMENT, ASSUMPTION AND AMENDMENT  SHALL BE GOVERNED BY AND
  CONSTRUED IN ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE OF TEXAS.

        IN  WITNESS WHEREOF,  the parties  hereto  have duly  executed this
  Assignment, Assumption and Amendment on the date first written above.

                                READING & BATES CORPORATION

                                By:   _______________________________
                                      Name: _________________________
                                Title: ________________________

                                READING & BATES DRILLING CO.

                                By:   ______________________________
                                      Name:  _______________________
                                      Title: _______________________

                                READING & BATES EXPLORATION CO.

                                By:   _______________________________
                                      Name:  ________________________
                                      Title: ________________________


                                READING AND BATES, INC.

                                By:   _______________________________
                                      Name:  ________________________
                                      Title: ________________________


                          READING AND BATES BORNEO DRILLING CO., LTD.

                                By:   ________________________________
                                      Name:  _________________________
                                      Title: _________________________


                                READING & BATES (A) PTY. LTD.

                                By:   ________________________________
                                      Name:  _________________________
                                      Title: _________________________


                                The  Assignor  executes  and  delivers this
                                Assignment, Assumption and Amendment  No. 2
                                to Trust Indenture solely for  the purposes
                                of and with respect to the assignments  and
                                assumptions being  made hereunder  and  not
                                with  respect  to  any  amendment  or other
                                matter hereunder.

                                TEXAS  COMMERCE BANK  NATIONAL ASSOCIATION,
                                as  Trustee   (Holder-Transferee  from  the
                                Receiver of NEW FIRST  CITY, TEXAS-HOUSTON,
                                N.A., successor in interest to  FIRST CITY,
                                TEXAS-HOUSTON, N.A.)

                                By:   ________________________________
                                      Name:  _________________________
                                      Title: Assistant Vice President &
                                              Corporate Trust Officer


                                BANK ONE, TEXAS, N.A., as Trustee

                                By:   _________________________________
                                      Name:  __________________________
                                      Title: __________________________




                                ACKNOWLEDGMENT




  STATE OF TEXAS           
                           
  COUNTY OF HARRIS         


        BEFORE ME, ______________________________,  a notary public  in and
  for  said   county   and   state,  on   this  day   personally   appeared
  _______________________,  known  to me  to  be the  person whose  name is
  subscribed to  the  foregoing  instrument  and  known to  me  to  be  the
  ____________________  of  Reading  &  Bates  Corporation,  a  corporation
  organized under the  laws of  Delaware, and  acknowledged to  me that  he
  executed  said  instrument for  the  purposes  and consideration  therein
  expressed, and as the act of said corporation.

        Given under  my hand  and seal  of office this  ___ day  of ______,
  1995.


                                      _______________________________
                                      Notary Public



                                ACKNOWLEDGMENT


  STATE OF TEXAS                
                                
  COUNTY OF HARRIS              


        BEFORE ME,  ______________________________, a notary public  in and
  for  said   county   and   state,  on   this  day   personally   appeared
  _______________________,  known  to me  to  be the  person whose  name is
  subscribed  to  the  foregoing  instrument  and known  to  me  to  be the
  ____________________  of  Reading &  Bates  Drilling  Co., a  corporation
  organized under  the laws  of Oklahoma,  and acknowledged  to me  that he
  executed  said  instrument for  the  purposes  and consideration  therein
  expressed, and as the act of said corporation.

        Given under  my hand and seal  of office this ___  day of ________,
  1995.


                                      _______________________________
                                      Notary Public



                                ACKNOWLEDGMENT


  STATE OF TEXAS           
                           
  COUNTY OF HARRIS         


        BEFORE ME, ______________________________,  a notary public in  and
  for   said   county  and   state,   on   this  day   personally  appeared
  _______________________,  known  to me  to  be the  person whose  name is
  subscribed  to  the  foregoing instrument  and  known  to  me  to be  the
  ____________________ of  Reading &  Bates Exploration Co.,  a corporation
  organized under  the laws of  Oklahoma, and  acknowledged to  me that  he
  executed  said  instrument for  the  purposes  and consideration  therein
  expressed, and as the act of said corporation.

        Given under  my hand and seal  of office this ___  day of ________,
  1995.


                                      _______________________________
                                      Notary Public


                                ACKNOWLEDGMENT


  STATE OF TEXAS           
                           
  COUNTY OF HARRIS         


        BEFORE ME, ______________________________,  a notary public  in and
  for   said   county  and   state,   on   this  day   personally  appeared
  _______________________,  known  to me  to  be the  person whose  name is
  subscribed  to the  foregoing  instrument  and  known  to me  to  be  the
  ____________________ of Reading and  Bates, Inc., a corporation organized
  under the laws of Oklahoma,  and acknowledged to me that he executed said
  instrument for the  purposes and consideration therein  expressed, and as
  the act of said corporation.

        Given under  my hand and seal  of office this ___  day of ________,
  1995.


                                      _______________________________
                                      Notary Public



                                ACKNOWLEDGMENT


  STATE OF TEXAS           
                           
  COUNTY OF HARRIS         


        BEFORE ME,  ______________________________, a notary  public in and
  for  said   county  and   state,   on  this   day   personally   appeared
  _______________________,  known  to me  to  be the  person whose  name is
  subscribed to  the  foregoing  instrument  and known  to  me  to  be  the
  ____________________ of Reading  and Bates Borneo  Drilling Co., Ltd.,  a
  corporation  organized under the laws of Oklahoma, and acknowledged to me
  that he  executed  said  instrument for  the purposes  and  consideration
  therein expressed, and as the act of said corporation.

        Given under my hand and  seal of office this ___ day  of _________,
  1995.


                                      _______________________________
                                      Notary Public



                                ACKNOWLEDGMENT


  STATE OF TEXAS         
                         
  COUNTY OF HARRIS       


        BEFORE ME, ______________________________,  a notary public  in and
  for   said  county   and   state,   on  this   day  personally   appeared
  _______________________,  known  to me  to  be the  person whose  name is
  subscribed  to the  foregoing  instrument  and  known to  me  to  be  the
  ____________________  of  Reading &  Bates (A)  Pty. Ltd.,  a corporation
  organized under the  laws of _________,  and acknowledged to  me that  he
  executed  said  instrument for  the  purposes  and consideration  therein
  expressed, and as the act of said corporation.

        Given  under my hand and seal of  office this ___ day of _________,
  1995.


                                      _______________________________
                                      Notary Public



                                ACKNOWLEDGMENT


  STATE OF TEXAS           
                           
  COUNTY OF HARRIS         


        BEFORE ME,  ______________________________, a notary  public in and
  for   said   county   and  state,   on  this   day   personally  appeared
  ______________, known to me to  be the person whose name is subscribed to
  the  foregoing instrument  and  known  to me  to  be  the Assistant  Vice
  President and Corporate  Trust Officer  of Texas  Commerce Bank  National
  Association, as Trustee, a national banking association, and acknowledged
  to me that he executed said instrument for the purposes and consideration
  therein expressed, and as the act of said association.

        Given under  my hand and seal  of office this ___  day of ________,
  1995.


                                      _______________________________
                                      Notary Public 


                                ACKNOWLEDGMENT


  STATE OF TEXAS           
                           
  COUNTY OF HARRIS         


        BEFORE ME,  ______________________________, a notary public  in and
  for said county and state,  on this day personally appeared  Roark Ashie,
  known to me  to be the person  whose name is subscribed to  the foregoing
  instrument and known to  me to be the Vice President  of Bank One, Texas,
  N.A.,  a  national  banking  association,  organized under  the  laws  of
  _________,  and acknowledged to  me that he executed  said instrument for
  the purposes and consideration therein expressed,  and as the act of said
  corporation.

        Given  under my hand and seal of  office this ___ day of _________,
  1995.


                                      _______________________________
                                      Notary Public


<PAGE>
                                                                   EXHIBIT L
                                                     TO AMENDED AND RESTATED
                                                            CREDIT AGREEMENT


                          AMENDMENT NO. 1 TO GUARANTY

        Amendment No. 1 to  Guaranty ("Amendment No. 1") dated  as of April
  __, 1995 among READING & BATES DRILLING CO.,  a corporation organized and
  existing under the laws of the State of Oklahoma ("RBD"), READING & BATES
  EXPLORATION CO., a  corporation organized and existing under the  laws of
  the State  of Oklahoma ("RBX"),  READING AND BATES,  INC., a  corporation
  organized and existing  under the laws of the  State of Oklahoma ("RBI"),
  READING  & BATES CORPORATION, a  corporation organized and existing under
  the  laws of  the State  of Delaware  ("RBC"), READING  AND BATES  BORNEO
  DRILLING CO., LTD.,  a corporation organized and existing under  the laws
  of  the State of  Oklahoma ("RBB") and  Reading & Bates (A)  Pty. Ltd., a
  corporation organized and existing  under the laws of Australia  ("RBA"),
  (RBD, RBX,  RBI, RBC, RBB and  RBA being referred to  collectively as the
  "Guarantors"   and  individually   as   a  "Guarantor"),   in   favor  of
  INTERNATIONALE NEDERLANDEN BANK N.V. (the "Lender").

                             W I T N E S S E T H:

        WHEREAS,  the Lender and  RBD, RBX,  RBI and RBC  entered into that
  certain  guaranty agreement  (the "Guaranty") dated  as of  June 28, 1991
  respecting the Charters; and

        WHEREAS, the Guarantors have  entered into an Amended  and Restated
  Credit Facility Agreement (the "Amended and Restated Agreement") dated as
  of  the  date  hereof  which  provides,  among  other  things,  that  the
  obligations  of the  Guarantors under  the Guaranty,  as amended  by this
  Amendment No. 1, shall be secured by the other Loan Documents (as defined
  in the Amended and Restated Agreement); and

        WHEREAS, the Lender  and the Guarantors wish to amend  the Guaranty
  in order to reflect the addition of RBB and RBA as  Guarantors; and

        WHEREAS,  the Guaranty  by  RBB will  be  secured by,  among  other
  things, a Panamanian First Naval Mortgage on the Rig owned by RBB and the
  Guaranty by RBA  will be  secured by, among  other things, an  Australian
  First Preferred Mortgage on the Rig owned by RBA; and

        WHEREAS,  it is a condition to the Lender entering into the Amended
  and Restated  Credit Facility Agreement  that the Guarantors  execute and
  deliver to the Lender this Amendment No. 1 to the Guaranty.

        NOW,  THEREFORE,  in consideration  of the  above recitals  and for
  other good  and valuable  consideration, the receipt  and sufficiency  of
  which is  hereby acknowledged, the  parties agree to  amend the  Guaranty
  effective as of the date hereof, as follows: 

        1.    RBB and RBA shall, as of and after the  date hereof, be added
  as  Guarantors  and  shall  bound  by all  terms  and  conditions  of the
  Guaranty, as amended by Amendment No. 1.  

        2.    Each  Guarantor  hereby   ratifies  and  confirms   that  the
  liability of each  of the Guarantors  under the  Guaranty, as amended  by
  Amendment No. 1, is absolute, unconditional, irrevocable and enforceable.

        3.    Each  Guarantor  hereby  represents  and  warrants  that  the
  Representations and Warranties contained in Section 7 of the Guaranty are
  true and valid as of the date hereof.

        4.    Section  10  of the  Guaranty  is hereby  amended to  read as
  follows:

        "Security.   The  obligations  of the  Guarantors  under this
        Guaranty shall be secured by the Loan Documents as defined in
        the Amended and Restated Agreement including the Mortgages on
        the  Rigs.  In order to perfect such security, the Guarantors
        agree  to  execute,  deliver  and  record amendments  to  the
        Mortgages  and  the  other  Loan  Documents  reflecting their
        obligations under  this Guaranty and their  mortgaging of the
        Rigs   and  other  assets  owned  by   them  to  secure  such
        obligations."

        5.  Except as modified and amended herein, all terms and conditions
  of the Guaranty remain in full force and effect. 

        6.  All capitalized terms  used in this Amendment No. 1 to Guaranty
  which are not defined herein shall  have the meaning given to them in the
  Amended and Restated Agreement.

        THIS  AMENDMENT  NO. 1  TO  GUARANTY  SHALL  BE  GOVERNED  BY,  AND
  CONSTRUED IN ACCORDANCE WITH, THE INTERNAL LAWS OF THE STATE OF NEW YORK.


        IN WITNESS WHEREOF, the Guarantors have duly executed and delivered
  this Amendment No. 1 to Guaranty as of the date first written above.

                                READING & BATES CORPORATION


                                By:   __________________________
                                      Name:  ___________________
                                      Title: ___________________

                                READING & BATES DRILLING CO.


                                By:   __________________________
                                      Name:  ___________________
                                      Title: ___________________

                                READING & BATES EXPLORATION CO.


                                By:   __________________________
                                      Name:  ___________________
                                      Title: ___________________

                                READING AND BATES, INC.


                                By:   __________________________
                                      Name:  ___________________
                                      Title: ___________________

                                READING AND BATES BORNEO DRILLING CO.,
                                LTD.


                                By:   __________________________
                                      Name:  ___________________
                                      Title: ___________________

                                READING & BATES (A) PTY. LTD.


                                By:   __________________________
                                      Name:  ___________________
                                      Title: ___________________


  ACCEPTED:

  INTERNATIONALE NEDERLANDEN BANK N.V.

  By:   __________________________
        Name:  ___________________
        Title: ___________________


<PAGE>
                                                                   EXHIBIT M
                                                     TO AMENDED AND RESTATED
                                                   CREDIT FACILITY AGREEMENT


                 ASSIGNMENT, ASSUMPTION AND AMENDMENT NO. 2 TO
                           ASSIGNMENT OF INSURANCES

        THIS ASSIGNMENT,  ASSUMPTION AND AMENDMENT  NO. 2 TO  ASSIGNMENT OF
  INSURANCES dated as of April __, 1995, among Reading & Bates Corporation,
  a  corporation organized  and existing  under the  laws of  the  State of
  Delaware ("RBC"), Reading  & Bates Drilling Co., a  corporation organized
  and  existing under the laws of the  State of Oklahoma ("RBD"), Reading &
  Bates Exploration  Co., a  corporation organized  and existing  under the
  laws  of the  State  of  Oklahoma ("RBX"),  Reading  and  Bates, Inc.,  a
  corporation  organized  and  existing  under the  laws  of  the State  of
  Oklahoma ("RBI"), (RBC,  RBD, RBX and RBI being referred  to collectively
  as the  "Original Borrowers"), Texas Commerce  Bank National Association,
  as Trustee,  (Holder-Transferee from  the  Receiver of  New  First  City,
  Texas-Houston, N.A.,  successor in interest to  First City Texas-Houston,
  N.A., a national  banking association) (the "Assignor"), which  entity is
  executing this document solely  for the purposes of  and with respect  to
  the assignments and assumptions being made hereunder and not with respect
  to  any amendment or other matter hereunder, and Bank One, Texas, N.A., a
  national banking association, as Trustee (the "Assignee"). 

                              W I T N E S E T H:

              WHEREAS, pursuant  to the Credit Facility  Agreement dated as
  of March 27, 1991,  as amended May  24, 1991, June  28, 1991,  August 30,
  1991,  June 30, 1992 and February 23,  1993 (as so amended, the "Original
  Credit Agreement"), Internationale  Nederlanden Bank  (formerly known  as
  NMB Postbank Groep, the "Lender") agreed to provide funding to certain of
  the Original Borrowers  in the aggregate  principal amount  of up to  USD
  112,000,000; and

              WHEREAS,  Reading  &  Bates  Borneo  Drilling  Co.,  Ltd.,  a
  corporation  organized  and  existing  under the  laws  of  the State  of
  Oklahoma  ("RBB")  and  Reading  & Bates  (A)  Pty.  Ltd., a  corporation
  organized  and existing under the laws of Australia ("RBA"), the Original
  Borrowers and the  Lender have restated the Original Credit  Agreement in
  order to  add RBB and RBA  as Borrowers (the Original  Borrowers, RBB and
  RBA  being  referred  to  hereafter  collectively  as  the  "Borrowers"),
  increase the  amount of Facility E,  add a new letter  of credit facility
  and amend certain terms  and covenants (the "Restated Credit Agreement");
  and

              WHEREAS, the  Assignor, by operation of  merger, succeeded to
  all of the rights and obligations of New First City, Texas-Houston, N.A.,
  the  successor trustee under that certain Trust Indenture dated March 29,
  1991 (the "Indenture") among the Original Borrowers and First City Texas-
  Houston, N.A., as trustee,  pursuant to which the Assignor agreed  to act
  on  behalf of  the  Lender with  respect  to certain  security  interests
  granted by the  Original Borrowers to secure their obligations  under the
  Original Credit Agreement; and

              WHEREAS,  the  Assignor has  assigned  and  the Assignee  has
  assumed the rights and obligations of the Assignor under the terms of the
  Indenture pursuant to Assignment, Assumption and Amendment No. 2 to Trust
  Indenture  dated as of  the date hereof (the  "Assignment of Indenture");
  and

              WHEREAS,  the Original  Borrowers, pursuant  to  that certain
  Assignment  of   Insurances  dated  March  29,   1991,  assigned  certain
  insurances in respect  of the Vessels to First City  Texas-Houston, N.A.,
  as Trustee,  the terms of which were amended by  Amendment No. 1 dated as
  of February 25,  1993 (as amended, the "Assignment of  Insurances") among
  the Original Borrowers and Assignor; and

              WHEREAS,  in order to reflect the terms and conditions of the
  Assignment of Indenture and the Restated Credit Agreement,
  the Assignor and the Original Borrowers  wish to assign and the  Assignee
  wishes  to  assume all  of  Assignor's rights  and obligations  under the
  Assignment  of Insurances,  and the  Assignee and the  Original Borrowers
  wish to amend the Assignment of Insurances as hereinafter follows.

              NOW THEREFORE, in consideration of the above recitals and for
  other good  and valuable  consideration, the receipt  and sufficiency  of
  which is hereby acknowledged, the parties agree to assign and assume  the
  Assignment of Insurances effective as of the date hereof as follows:

                           Assignment and Assumption

        1.    The  Assignor  hereby sells,  transfers,  assigns  and grants
  absolutely and  not  by way  of security,  all of  its  right, title  and
  interest   and   responsibilities,   powers,  duties,   liabilities   and
  obligations  in,  to and  under  the  Assignment  of  Insurances  to  the
  Assignee.

        2.    In connection with this Assignment, Assumption and Amendment,
  the Original  Borrowers represent and  warrant to the  Assignee that  the
  Assignment of  Insurances is in  full force and  effect and  there are no
  events which would  constitute a default by the Original  Borrowers under
  the terms of the Assignment of Insurances or events which would, with the
  passage of  time or  the giving  of notice, constitute  such an  Event of
  Default (as defined in the Original Credit Agreement).

        3.    The Assignee hereby acknowledges receipt of the Assignment of
  Insurances and expressly agrees accept the position of trustee under, and
  be  bound  by,  all of  the terms  and  provisions of  the  Assignment of
  Insurances, as amended hereby.

        4.    The  Assignee hereby agrees to perform and comply with all of
  the terms and  conditions of, and hereby assumes all  of the right, title
  and   interest,  responsibilities,   powers,  duties,   liabilities   and
  obligations  of the Assignor under, the Assignment of Insurances from and
  after the date hereof.

        5.    The  Assignor  is hereby  released  and  discharged from  its
  responsibilities, powers,  duties, liabilities and  obligations under the
  Assignment of Insurances.

        6.    The Assignor agrees that at  any time and from time to  time,
  upon the written request of  the Assignee, the Assignor will promptly and
  duly  execute  and  deliver  any and  all  such  further instruments  and
  documents  as  may  be  reasonably  necessary  to  effect  the  transfers
  expressly  made  by  Assignor   under  this  Assignment,  Assumption  and
  Amendment,   including,  without  limitation,  assignments  of  financing
  statements.

                    Amendments to Assignment of Insurances

        The Original  Borrowers  and  the Assignee  hereby agree  that  the
  Assignment of Insurances shall be amended as follows:

        A.    All references in the Assignment of Insurances to the Trustee
  shall mean Bank One, Texas, N.A., a national banking association with its
  principal place of business at 910 Travis, Houston, Texas  77002.

        B.    Schedule 1 to the Assignment  of Insurances is hereby amended
  to delete the reference to:

        "RON TAPPMEYER  597497  U.S.  Reading & Bates Exploration Co."

        C.    All  references  in  the  Assignment  of  Insurances  to  the
  Original  Credit  Facility  Agreement  shall  mean  the  Restated  Credit
  Agreement. 

        D.    Except as specifically amended by this Assignment, Assumption
  and Amendment,  all of  the  terms and  provisions of  the Assignment  of
  Insurances shall remain in full force and effect.

        All capitalized terms used herein but not defined herein shall have
  the meanings given to them in the Assignment of Insurances.

        THIS ASSIGNMENT,  ASSUMPTION AND AMENDMENT  NO. 2 TO  ASSIGNMENT OF
  INSURANCES  SHALL BE  GOVERNED BY  AND CONSTRUED  IN ACCORDANCE  WITH THE
  INTERNAL LAWS  OF THE STATE OF NEW YORK AND MAY NOT BE AMENDED OR CHANGED
  EXCEPT BY AN INSTRUMENT IN WRITING.

        IN WITNESS  WHEREOF,  the parties  hereto have  duly executed  this
  Assignment, Assumption and Amendment No. 2 to Assignment of Insurances on
  the date first written above.

                                READING & BATES CORPORATION

                                By:   _______________________________
                                      Name: _________________________
                                      Title: ________________________

                                READING & BATES DRILLING CO.

                                By:   ______________________________
                                      Name:  _______________________
                                      Title: _______________________

                                READING & BATES EXPLORATION CO.

                                By:   _______________________________
                                      Name:  ________________________
                                      Title: ________________________

                                READING AND BATES, INC.

                                By:   _______________________________
                                      Name:  ________________________
                                      Title: ________________________


                                The  Assignor  executes  and  delivers this
                                Assignment,  Assumption  and  Amendment  of
                                Assignment  of  Insurances  solely  for the
                                purposes   of  and  with   respect  to  the
                                assignments  and   assumptions  being  made
                                hereunder  and  not  with  respect  to  any
                                amendment or other matter hereunder.

                                TEXAS  COMMERCE BANK  NATIONAL ASSOCIATION,
                                as  Trustee   (Holder-Transferee  from  the
                                Receiver of NEW FIRST  CITY, TEXAS-HOUSTON,
                                N.A.,  successor in interest to FIRST CITY,
                                TEXAS-HOUSTON, N.A.)

                                By:   ________________________________
                                      Name:  _________________________
                                      Title: Assistant Vice President &
                                              Corporate Trust Officer


                                BANK ONE, TEXAS, N.A., as Trustee

                                By:   _________________________________
                                      Name:  __________________________
                                      Title: __________________________


<PAGE>
                                                                   EXHIBIT N
                                                     TO AMENDED AND RESTATED
                                                   CREDIT FACILITY AGREEMENT


                 ASSIGNMENT, ASSUMPTION AND AMENDMENT NO. 2 TO
             ASSIGNMENT OF DRILLING CONTRACT REVENUES AND EARNINGS

        THIS ASSIGNMENT,  ASSUMPTION AND AMENDMENT  NO. 2 TO  ASSIGNMENT OF
  DRILLING CONTRACT REVENUES AND EARNINGS dated as of April __, 1995, among
  Reading  & Bates Corporation, a corporation  organized and existing under
  the  laws of the State of Delaware ("RBC"), Reading & Bates Drilling Co.,
  a corporation  organized  and existing  under the  laws of  the State  of
  Oklahoma  ("RBD"),  Reading  &   Bates  Exploration  Co.,  a  corporation
  organized and existing  under the laws of the  State of Oklahoma ("RBX"),
  Reading and Bates,  Inc., a corporation organized and existing  under the
  laws  of the  State of  Oklahoma ("RBI"),  (RBC, RBD,  RBX and  RBI being
  referred to  hereafter collectively  as the "Original  Borrowers"), Texas
  Commerce Bank National  Association, as Trustee, (Holder-Transferee  from
  the  Receiver  of  New  First  City,  Texas-Houston,  N.A.,  successor in
  interest  to   First  City   Texas-Houston,  N.A.,  a   national  banking
  association) (the  "Assignor"), which  entity is executing  this document
  solely for  the  purposes of  and with  respect  to the  assignments  and
  assumptions being made hereunder and not with respect to any amendment or
  other matter  hereunder,and  Bank One,  Texas, N.A.,  a national  banking
  association, as Trustee (the "Assignee"). 

                             W I T N E S S E T H:

              WHEREAS, pursuant  to the Credit Facility  Agreement dated as
  of March 27,  1991, as amended  May 24, 1991,  June 28, 1991,  August 30,
  1991, June 30,  1992 and February 23, 1993 (as  so amended, the "Original
  Credit Agreement"),  Internationale Nederlanden  Bank (formerly known  as
  NMB Postbank Groep, the "Lender") agreed to provide funding to certain of
  the Original  Borrowers in the  aggregate principal amount  of up  to USD
  112,000,000; and

              WHEREAS,  Reading  &  Bates  Borneo  Drilling  Co.,  Ltd.,  a
  corporation  organized  and  existing  under the  laws  of  the State  of
  Oklahoma  ("RBB")  and  Reading  & Bates  (A)  Pty.  Ltd., a  corporation
  organized  and existing under the laws of Australia ("RBA"), the Original
  Borrowers and the  Lender have restated the Original Credit  Agreement in
  order to  add RBB and RBA  as Borrowers (the Original  Borrowers, RBB and
  RBA being  referred to  collectively  as the  "Borrowers"), increase  the
  amount  of Facility  E, add  a new  letter of  credit facility  and amend
  certain terms and covenants (the "Restated Credit Agreement"); and

              WHEREAS, the  Assignor, by operation of  merger, succeeded to
  all of the rights and obligations of New First City, Texas-Houston, N.A.,
  the  successor trustee under that certain Trust Indenture dated March 29,
  1991 (the "Indenture") among the Original Borrowers and First City Texas-
  Houston, N.A., as trustee,  pursuant to which the Assignor agreed  to act
  on  behalf of  the  Lender with  respect  to certain  security  interests
  granted by the  Original Borrowers to secure their obligations  under the
  Original Credit Agreement; and

              WHEREAS,  the  Assignor has  assigned  and  the Assignee  has
  assumed the rights and obligations of the Assignor under the terms of the
  Indenture pursuant to Assignment, Assumption and Amendment No. 2 to Trust
  Indenture  dated as of  the date hereof (the  "Assignment of Indenture");
  and

              WHEREAS,  the Original  Borrowers, pursuant  to  that certain
  Assignment of Drilling  Contract Revenues  and Earnings  dated March  29,
  1991, assigned certain  earnings in respect of the  Vessels to First City
  Texas-Houston,  N.A.,  as Trustee,  the  terms of  which were  amended by
  Amendment  No.  1  dated  as  of  February  25,  1993  (as  amended,  the
  "Assignment of Earnings") among the Original Borrowers and Assignor; and

              WHEREAS,  in order to reflect the terms and conditions of the
  Assignment of Indenture  and the Restated Credit  Agreement, the Assignor
  and the  Original Borrowers wish  to assign  and the  Assignee wishes  to
  assume all of  Assignor's rights and obligations under the  Assignment of
  Earnings, and the Assignee  and the Original Borrowers wish to  amend the
  Assignment of Earnings as hereinafter follows.

              NOW THEREFORE, in consideration of the above recitals and for
  other good  and valuable  consideration, the receipt  and sufficiency  of
  which is hereby acknowledged, the parties agree to assign and assume  the
  Assignment of Earnings effective as of the date hereof as follows:

                           Assignment and Assumption

        1.    The  Assignor  hereby sells,  transfers,  assigns  and grants
  absolutely and  not  by way  of security,  all of  its  right, title  and
  interest   and   responsibilities,   powers,  duties,   liabilities   and
  obligations in, to and under the Assignment of Earnings to the Assignee.

        2.    In connection with this Assignment, Assumption and Amendment,
  the Original  Borrowers represent and  warrant to the  Assignee that  the
  Assignment  of Earnings  is in  full force  and effect  and there  are no
  events which would  constitute a default by the Original  Borrowers under
  the terms of the Assignment  of Earnings or events which would,  with the
  passage  of time  or the giving  of notice,  constitute such  an Event of
  Default (as defined in the Original Credit Agreement).

        3.    The Assignee hereby acknowledges receipt of the Assignment of
  Earnings  and expressly agrees  to accept the position  of trustee under,
  and be  bound by, all  of the terms  and provisions of the  Assignment of
  Earnings, as amended hereby.

        4.    The  Assignee hereby agrees to perform and comply with all of
  the  terms and conditions of, and hereby  assumes all of the right, title
  and   interest,  responsibilities,   powers,   duties,   liabilities  and
  obligations  of the Assignor  under, the Assignment of  Earnings from and
  after the date hereof.

        5.    The  Assignor  is hereby  released  and  discharged from  its
  responsibilities,  powers, duties, liabilities and  obligations under the
  Assignment of Earnings.

        6.    The Assignor agrees  that at any time and from  time to time,
  upon the  written request of the Assignee, the Assignor will promptly and
  duly  execute  and  deliver  any and  all  such  further instruments  and
  documents  as  may  be  reasonably  necessary  to  effect  the  transfers
  expressly  made  by  Assignor   under  this  Assignment,  Assumption  and
  Amendment   including,  without  limitation,   assignments  of  financing
  statements.

                     Amendments to Assignment of Earnings

        The  Borrowers and the Assignee hereby agree that the Assignment of
  Earnings shall be amended as follows:

        A.    All references in  the Assignment of Earnings  to the Trustee
  shall mean Bank One, Texas, N.A., a national banking association with its
  principal place of business at 901 Travis, Houston, Texas  77002.

        B.    Schedule 1 to the Assignment of Earnings is hereby amended to
  delete the reference to:

      "RON TAPPMEYER  597497  U.S.  Reading & Bates Exploration Co."

        C.    All references in the Assignment of  Earnings to the Original
  Credit Facility Agreement shall mean the Restated Credit Agreement. 

        D.    Except as specifically amended by this Assignment, Assumption
  and  Amendment, all  of the  terms and  provisions  of the  Assignment of
  Earnings shall remain in full force and effect.

        All capitalized terms used herein but not defined herein shall have
  the meanings given to them in the Assignment of Earnings.

        THIS ASSIGNMENT, ASSUMPTION  AND AMENDMENT NO.  2 TO ASSIGNMENT  OF
  DRILLING  CONTRACT  REVENUES  AND  EARNINGS  SHALL  BE  GOVERNED  BY  AND
  CONSTRUED IN ACCORDANCE WITH THE  INTERNAL LAWS OF THE STATE OF  NEW YORK
  AND MAY NOT BE AMENDED OR CHANGED EXCEPT BY AN INSTRUMENT IN WRITING.

        IN  WITNESS WHEREOF,  the  parties hereto  have duly  executed this
  Assignment,  Assumption and  Amendment No.  2  to Assignment  of Drilling
  Contract Revenues and Earnings on the date first written above.

                                READING & BATES CORPORATION


                                By:   _______________________________
                                      Name: _________________________
                                      Title: ________________________


                                READING & BATES DRILLING CO.


                                By:   ______________________________
                                      Name:  _______________________
                                      Title: _______________________


                                READING & BATES EXPLORATION CO.


                                By:   _______________________________
                                      Name:  ________________________
                                      Title: ________________________


                                READING AND BATES, INC.

                                By:   _______________________________
                                      Name:  ________________________
                                      Title: ________________________

                                The  Assignor  executes  and  delivers this
                                Assignment,  Assumption  and  Amendment  of
                                Assignment  of  Drilling Contract  Revenues
                                and Earnings solely for the purposes of and
                                with  respect   to  the   assignments   and
                                assumptions being  made hereunder  and  not
                                with  respect  to  any amendment  or  other
                                matter hereunder.

                                TEXAS  COMMERCE BANK  NATIONAL ASSOCIATION,
                                as  Trustee   (Holder-Transferee  from  the
                                Receiver of NEW FIRST  CITY, TEXAS-HOUSTON,
                                N.A., successor in  interest to FIRST CITY,
                                TEXAS-HOUSTON, N.A.)

                                By:   ________________________________
                                      Name:  _________________________
                                      Title: Assistant Vice President &
                                              Corporate Trust Officer

                                BANK ONE, TEXAS, N.A., as Trustee

                                By:   _________________________________
                                      Name:  __________________________
                                      Title: __________________________



<PAGE>


                                                                   Exhibit 11

                          READING & BATES CORPORATION
                                 AND SUBSIDIARIES

      COMPUTATION OF EARNINGS PER COMMON SHARE, PRIMARY AND FULLY DILUTED
               (in thousands except share and per share amounts)
<TABLE>
<CAPTION>
                                 THREE MONTHS ENDED        SIX MONTHS ENDED
                                      JUNE 30,                  JUNE 30,
                               ----------------------   ----------------------
                                   1995       1994         1995        1994   
                               ----------  ----------   ----------  ----------
PRIMARY EARNINGS PER SHARE:
<S>                            <C>         <C>          <C>         <C>
Weighted average number of
 common shares outstanding     59,737,170  55,486,915   59,725,307  55,487,738
                               ==========  ==========   ==========  ==========
Net  income (loss)             $    2,432   $  (6,038)   $   2,063  $   (7,529)
     
  Less dividends paid on
   $1.625 Convertible
   Preferred Stock                 (1,215)     (1,215)      (2,430)     (2,430)
                               ----------  ----------   ----------  ---------- 
Adjusted net income (loss)
 applicable to common shares
 outstanding - assuming no
 dilution                      $    1,217  $   (7,253)  $     (367) $   (9,959)
                               ==========  ==========   ==========  ==========
Net income (loss) per common
 share - assuming no dilution  $      .02  $     (.13)  $     (.01) $     (.18)
                               ==========  ==========   ==========  ==========

FULLY DILUTED EARNINGS PER SHARE:

Weighted average number
 of common shares
 outstanding                   59,737,170  55,486,915   59,725,307  55,487,738

Assume conversion of securities:
  $1.625 Convertible Preferred
      Stock                     8,668,010   8,668,010    8,668,010   8,668,010
  8% Senior Subordinated
      Convertible Debentures      783,686     743,457      783,686     743,457
  8% Convertible Subordinated
      Debentures                   16,661      16,661       16,661      16,661
                               ----------  ----------   ----------  ----------
Adjusted common shares
  outstanding - fully
  diluted                      69,205,527  64,915,043   69,193,664  64,915,866
                               ==========  ==========   ==========  ==========
Adjusted net income (loss)
  applicable to common shares
  outstanding - assuming no
  dilution                     $    1,217  $   (7,253)  $     (367) $   (9,959)
Adjustments:
  Interest on 8% Senior
    Subordinated Convertible
    Debentures                        775         667        1,514       1,303
  Interest on 8% Convertible
    Subordinated Debentures           557         521        1,093       1,023
  Dividends paid on $1.625
    Convertible Preferred
    Stock                           1,215       1,215        2,430       2,430
                               ----------  ----------   ----------  ----------
Adjusted net income (loss)
  applicable to common
  shares outstanding 
  - assuming full dilution     $    3,764  $   (4,850)  $    4,670  $   (5,203)
                               ==========  ==========   ==========  ==========
Net income (loss) per common
  share - assuming full
  dilution (antidiluive)       $      .05  $     (.07)  $      .07  $     (.08)
                               ==========  ==========   ==========  ==========
</TABLE> 


                                                                  Exhibit 15







  Reading & Bates Corporation



        We are aware  that Reading & Bates Corporation has  incorporated by
  reference in its Registration Statements No. 33-44237, No. 33-50828 , No.
  33-50565 and  No. 33-56029 its Form  10-Q for the quarter  ended June 30,
  1995,  which  includes our  report  dated  July  18,  1995  covering  the
  unaudited interim  financial information contained therein.   Pursuant to
  Regulation C of the Securities Act of 1933, that report is not considered
  a part of the registration statement prepared or certified by our firm or
  a report prepared or certified by our firm within the meaning of Sections
  7 and 11 of the Act.





  Arthur Andersen LLP

  Houston, Texas 
  July 18, 1995 

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
financial statements of Reading & Bates Corporation for the six months ended
June 30, 1995 and is qualified in its entirety by reference to such financial
statements.
</LEGEND>
<MULTIPLIER>                    1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-START>                             JAN-01-1995
<PERIOD-END>                               JUN-30-1995
<CASH>                                          40,386
<SECURITIES>                                         0
<RECEIVABLES>                                   45,602
<ALLOWANCES>                                       623
<INVENTORY>                                      9,516
<CURRENT-ASSETS>                                96,895
<PP&E>                                         793,734
<DEPRECIATION>                                 302,864
<TOTAL-ASSETS>                                 591,681
<CURRENT-LIABILITIES>                           96,926
<BONDS>                                              0
<COMMON>                                         2,988
                            2,990
                                          0
<OTHER-SE>                                     316,360
<TOTAL-LIABILITY-AND-EQUITY>                   591,681
<SALES>                                              0
<TOTAL-REVENUES>                                98,357
<CGS>                                                0
<TOTAL-COSTS>                                   63,145
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                   250
<INTEREST-EXPENSE>                               7,753
<INCOME-PRETAX>                                  4,434
<INCOME-TAX>                                     1,732
<INCOME-CONTINUING>                              2,063
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     2,063
<EPS-PRIMARY>                                    (.01)
<EPS-DILUTED>                                      .07
        

</TABLE>


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