DENBURY RESOURCES INC
8-K, 1997-12-09
CRUDE PETROLEUM & NATURAL GAS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                             Current Report Pursuant
                          to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


     Date of report (Date of earliest event reported)      December 8, 1997



                             DENBURY RESOURCES INC.
             (Exact name of Registrant as specified in its charter)




                                     Canada
                                 (State or other
                                  jurisdiction
                               of incorporation or
                                  organization)

        33-93722                                      Not applicable
    (Commission File                                (I.R.S. Employer
         Number)                                    Identification No.)


   17304 Preston Road
        Suite 200
       Dallas, TX                                       75252
  (Address of principal                               (Zip code)
   executive offices)



 Registrant's telephone number,                      (972)713-3000
     including area code:


<PAGE>

 Item 2.  Acquisition or Disposition of Assets

     On November 25,  1997,  Denbury  Management  Inc.  ("Denbury"),  a indirect
wholly-owned subsidiary of Denbury Resources Inc., announced that it had entered
into an asset  sale  agreement  to  purchase  producing  oil  properties  in the
Heidelberg Field,  Jasper County,  Mississippi,  for approximately  $202 million
from Chevron U.S.A. Inc. (the "Chevron Acquisition").  This field is in the same
area as the Company's other core Mississippi  properties and includes  operated,
non-operating and royalty  interests with  approximately 122 producing wells, of
which 96 wells  will be  Company  operated.  The  Company  will have an  average
working  interest  of 94% and an average  net  revenue  interest of 81% in these
operated  wells which  account for  approximately  99% of the net average  daily
production in this field.  The average daily  production  from these  properties
during the nine months ended September 30, 1997 was  approximately  2,900 Bbls/d
and 600 Mcf/d, net to the acquired interest.

     The Company has also  acquired  minor  interests in  Heidelberg  Field from
three other entities at an aggregate cost of approximately  $5.9 million.  These
four acquisitions are expected to add net proved reserves of approximately  29.9
million barrels of oil and 1.8 billion cubic feet of gas, or approximately  30.2
million  barrels on a BOE basis,  as of January 1, 1998, to the Company based on
preliminary estimates by Netherland,  Sewell and Associates, Inc., the Company's
independent  petroleum engineers.  For comparison,  as of December 31, 1996, the
Company's net proved reserves  consisted of  approximately 15 million barrels of
oil and 74.1  billion  cubic feet of natural gas or  approximately  27.4 million
barrels on a BOE basis. As a result of the significant  amount of future work to
be performed  and its expected  effect on future  reserves and  production,  the
Company  has  attributed  approximately  $75  million of the  purchase  price to
unevaluated properties.

     Heidelberg  Field was  discovered in 1944 and has produced an estimated 191
MMBbls and 36 Bcf since its discovery. The Field is a large salt cored anticline
which is divided by faulting into a western and eastern half. Production is from
a series of  normally  pressured  Cretaceous  and  Jurassic  sandstone  horizons
situated between 4,500 feet and 11,500 feet.  There are 11 producing  formations
in  Heidelberg  Field  containing 44 individual  reservoir  intervals,  with the
majority of the current  production coming from the Eutaw and Christmas sands at
depths of approximately 5,000 feet.

     The West  Heidelberg  Eutaw sands have been  unitized  and water  injection
began late in 1996 in order to  increase  the bottom hole  pressure  and improve
recoveries  from the  formation.  A  production  response  to the  injection  is
expected  during  1998.  The  Eutaw  East One Fault  Block Oil Pool Unit  (Eutaw
formation in East  Heidelberg)  was  unitized in October  1997 and  injection is
projected to commence in March 1998. These waterflood projects, particularly the
East  Unit,  comprise  a  significant  portion  of  the  potential  reserves  at
Heidelberg.  The  Company has a 78%  working  interest in the East Unit,  59% of
which was acquired in the Chevron  Acquisition  and the  remaining  19% recently
acquired in the other  acquisitions.  The Company  operates a similar type Eutaw
unit  at its  East  Eucutta  Field,  located  approximately  nine  miles  to the
southeast,  with  production  from sands with  similar  porosity,  permeability,
thickness, and drive mechanisms.

     The Company has identified  several potential  development  projects during
its  initial  evaluation  of  the  field.  This  includes  initiating  the  East
Heidelberg  waterflood  project,  upgrading  lift  capacity in over 15 wells and
recompleting 30 wells in new zones. In addition, the Company has identified over
40 potential  drilling  locations  plus other  potential  secondary and tertiary
recovery  projects.  The  Company  has  experienced  success  in its  horizontal
drilling  program at nearby Davis,  Quitman and Eucutta Fields and based on this
information,  the Company  anticipates that 25 of the proposed future wells will
be horizontal wells. The total development  budget during 1998 for this field is
expected to be approximately $28 million.

     Denbury  anticipates  funding this  acquisition  initially with an expanded
bank  financing  and is  currently  exploring  its  alternatives  to  fund  this
acquisition  with other more  permanent  forms of capital.  The  transaction  is
effective January 1, 1998 and is expected to close in late December, 1997. It is
subject to the possible  effect of  preferential  purchase  rights held by third
parties and typical purchase price adjustments and closing conditions.

     This Form 8-K contains  forward-looking  statements  that involve risks and
uncertainties  including  expected  reserves,  planned  development and drilling
activity, expected production efforts, volumes and budgeted capital expenditures
and other risks and uncertainties detailed in the Company's SEC reports.  Actual
results may vary materially.


                                        2
<PAGE>


 Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits

     (a)  Audited   statements  of  revenues  and  direct   operating   expenses
          attributable to the Chevron  Acquisition for the years ending December
          31, 1995 and December 31, 1996 and the nine months ended September 30,
          1997 are not presently  available.  They will be filed by amendment as
          soon as practicable, but not later than 60 days after the due date for
          the filing of this report on Form 8-K.

     (b)  Pro forma results of operations of Denbury Resources Inc. for the year
          ended December 31, 1996 and nine months ended September 30, 1997 as if
          the  acquisition  had  occurred at the  beginning  of each  respective
          period and a pro forma  balance sheet as of September 30, 1997 are not
          presently  available.  They  will be  filed  by  amendment  as soon as
          practicable,  but not  later  than 60 days  after the due date for the
          filing of this report on Form 8-K.

     (c)    Exhibits:

                  Exhibit No.             Exhibit

                       (2)         Purchase  and  sale  agreement   between  the
                                   Company  and  Chevron   U.S.A.   Inc.   dated
                                   November 24, 1997. 

                       (99)        Reserve  estimates  as  of  January  1,  1998
                                   regarding   certain  reserve  additions  from
                                   Netherland,   Sewell  &   Associates,   Inc.,
                                   independent petroleum engineers.

                                        3
<PAGE>
                                   SIGNATURES



     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.



                                                 Denbury Resources Inc.
                                                      (Registrant)


DATE: December 8, 1997                         By:  /s/  Phil   Rykhoek
                                               -------------------------   
                                                    Phil Rykhoek
                                                  Chief Financial Officer
                                                      










                                    Item 7(c)
                                   Exhibit (2)

                              ASSET SALE AGREEMENT


                             HEIDELBERG AREA FIELDS

                           JASPER COUNTY, MISSISSIPPI


                                     BETWEEN



                               CHEVRON U.S.A. INC.


                                   (As Seller)


                                       and


                            DENBURY MANAGEMENT, INC.
                                   (As Buyer)


                                        4
<PAGE>


                              ASSET SALE AGREEMENT


     THIS ASSET SALE AGREEMENT (this  "Agreement"),  dated November 24, 1997, is
     between  CHEVRON  U.S.A.  INC., a Pennsylvania  corporation  with a mailing
     address of 1301 McKinney,  Houston,  Texas 77010 its successors and assigns
     ("Seller") and DENBURY MANAGEMENT,  INC. a Texas corporation with a mailing
     address  of 17304  Preston  Road,  Suite  200,  Dallas,  Texas  75252,  its
     successors and assigns ("Buyer"),

                               W I T N E S S E T H:

     That Seller  desires to sell to Buyer and Buyer  desires to  purchase  from
     Seller on the terms set forth in this  Agreement  those certain oil and gas
     interests  and  associated   assets  described  herein.   Accordingly,   in
     consideration of the mutual promises  contained herein, the mutual benefits
     to be  derived  by  each  party  hereunder  and  other  good  and  valuable
     considerations,   the   receipt  and   sufficiency   of  which  are  hereby
     acknowledged, Buyer and Seller agree as follows:

      1.    SALE AND PURCHASE OF ASSETS

            1.1   Assets To Be Sold.

                    1.1.1  Seller  shall sell,  transfer,  and assign,  or cause
                    others to sell,  transfer  and assign and  deliver to Buyer,
                    and Buyer shall purchase and receive all of Seller's rights,
                    title,  and interests and obligations  (but exclusive of the
                    equipment,  machinery,  and other real,  personal,  movable,
                    immovable and mixed  property  expressly  reserved by Seller
                    pursuant to Section 1.2 hereof) in and to the following:

                         a) the oil and  gas  leases  listed  and  described  in
                         Exhibit "A" (collectively,  "Leases"),  including,  but
                         not limited to, all  associated  minerals,  substances,
                         materials  and   compounds   contained  in  the  soils,
                         subsurface,  waters,  and groundwaters of the Leases or
                         that are a part of the Leases;

                         b) all oil and gas wells,  salt water  disposal  wells,
                         injection wells and other wells,  plugged or unplugged,
                         located  on the  Leases  or on lands  pooled  therewith
                         (collectively the "Wells");

                         c)  all  equipment,   machinery,  fixtures,  flowlines,
                         materials,  improvements  listed on Exhibit "A-1",  and
                         any other real, personal,  movable, immovable and mixed
                         property  located  on,  used  or  formerly  used in the
                         operation of, or relating to the production, treatment,
                         sale,   or  disposal  of   hydrocarbons,   water,   and
                         associated  substances  produced  from the Leases  (the
                         "Personal  Property"),  including,  but not limited to,
                         any ponds,  pits,  wells,  mounds,  or other facilities
                         located on the Leases or on the lands pooled  therewith
                         and  used  for the  management,  handling,  storage  or
                         disposal  of any  substances,  wastes,  byproducts,  or
                         contaminants  produced from or discharged onto the site
                         of the  Leases,  including,  but not  limited  to,  any
                         environmental  conditions,   hazardous  substances,  or
                         Naturally Occurring  Radioactive  Materials (NORM) that
                         might be present on the Leases;

                                        5
<PAGE>
                      
                     
                         d) all natural  gas,  casinghead  gas,  drip  gasoline,
                         natural  gasoline,  natural  gas  liquids,  condensate,
                         products,  crude  oil and other  hydrocarbons,  whether
                         gaseous or liquid,  produced  from or  allocable to the
                         Assets (as  hereinafter  defined)  after the  Effective
                         Date (the "Hydrocarbons");

                         e) to the extent transferable,  all contracts, permits,
                         rights-of-way,   easements,  licenses,  servitudes  and
                         agreements   (including   but  not   limited  to  those
                         described on Exhibit "A") relating to the Leases, Wells
                         or Personal  Property  or the  ownership  or  operation
                         thereof, or the production, treatment, sale, storage or
                         disposal  of   hydrocarbons,   water,   or   substances
                         associated therewith (the "Applicable Contracts");

                         f) copies of records  relating  to the  Leases,  Wells,
                         Hydrocarbons,   Applicable   Contracts   and   Personal
                         Property,  owned by  Seller  and  which  Seller  is not
                         prohibited  from   transferring  to  Buyer  by  law  or
                         existing contractual relationship including as follows:
                         all  (i)  lease,   land,   and  division   order  files
                         (including  any  abstracts  of title,  title  opinions,
                         certificates of title,  title curative  documents,  and
                         division orders contained therein), (ii) the Applicable
                         Contracts;  (iii)  all  well,  facility,  and  historic
                         production files (collectively,  the "Records")and (iv)
                         all geological  files  (including  structure maps, logs
                         and isopach maps) relating  directly to the Leases (the
                         "Geologic Data"), said Geologic Data being accepted "AS
                         IS, WHERE IS" without warranty or representation of any
                         nature  or  kind  as  to  the  accuracy,  completeness,
                         materiality,  validity  or fitness  for any  purpose of
                         such  Geologic  Data and with  all  faults  and same is
                         delivered  for  the  purpose  of  Buyer's   independent
                         evaluation  and  any  use  or  reliance  thereon  is at
                         Buyer's  sole  risk.  Such  Geologic  Data shall not be
                         further  transferred  without  Seller's express written
                         consent;

                         g) any  agreements  burdening  any part of the  Assets,
                         including  but not limited to that  certain  unrecorded
                         Farmout  Agreement  (LR-023456) dated April 4, 1997, by
                         and between Bob McAdams, Inc. and Seller; and

                                        6
<PAGE>                      

                         h) a non-exclusive seismic license agreement,  attached
                         hereto as Exhibit A-2, to use the seismic data obtained
                         from  Seller's  1993   Heidelberg  3-D  seismic  survey
                         covering a 36 square mile area around the properties in
                         Jasper County, Mississippi.

                         All of the above  including,  but not  limited  to, the
                         Leases,   Wells,   Personal   Property,   Hydrocarbons,
                         Applicable  Contracts,   and  Records  are  hereinafter
                         collectively referred to as the "Assets."

                    1. The  transfer of the Assets  shall be made at Closing (as
                    hereinafter  defined in Section  10.2.1),  but shall be made
                    effective as of the Effective Date (as hereinafter defined).
                    Seller and Buyer shall execute such additional  documents as
                    may be necessary to transfer the  interests  herein sold and
                    purchased on the records of any  purchaser  of  hydrocarbons
                    produced from or allocable to the Assets.

               A.  Exclusions  and  Reservations:   Specifically   excepted  and
               reserved from this transaction are the following, including those
               items described on Exhibit "A-3",  hereinafter referred to as the
               "Excluded Assets":

                         a)  Any  of  Seller's   reserve   estimates,   economic
                         analyses,   pricing   forecasts,   legal   opinions  or
                         analyses,  or  information   considered  by  Seller  as
                         confidential    or   protected   by    "Attorney-Client
                         Privilege";

                         b)  Subject to the  provisions  of  Section  11.2,  all
                         rights and claims  arising,  occurring,  or existing in
                         favor of Seller prior to the Effective Date  including,
                         but  not  limited  to,  any and  all  contract  rights,
                         claims, penalties,  receivables,  revenues,  recoupment
                         rights,   recovery  rights,   accounting   adjustments,
                         mispayments,   erroneous  payments,   personal  injury,
                         property damage,  royalty or other rights and claims of
                         any  nature  in favor of  Seller  relating  to any time
                         period prior to the Effective Date;

                         c) All corporate, financial, and tax records of Seller;
                         however,  Buyer shall be entitled to receive  copies of
                         any financial and tax records which directly  relate to
                         the  Assets,   or  which  are   necessary  for  Buyer's
                         ownership, administration, or operation of the Assets;

                         d) All rights,  titles,  claims and interests of Seller
                         related  to the  Assets  for all  periods  prior to the
                         Effective  Date (i) under any  policy or  agreement  of
                         insurance or  indemnity,  (ii) under any bond, or (iii)
                         to any insurance or condemnation proceeds or awards;


                                        7
<PAGE>                        

                         e) All  hydrocarbons  produced from or  attributable to
                         Seller's  interest  in the Assets  with  respect to all
                         periods prior to the Effective Date,  which are removed
                         or sold by Seller within 30 days of the Effective Date,
                         together   with   all   proceeds   from   or  of   such
                         hydrocarbons;

                         f)  Claims  of  Seller  for  refund  of or  loss  carry
                         forwards  with  respect  to  (i)  production,  windfall
                         profit,  severance,  ad  valorem  or  any  other  taxes
                         attributable  to the Assets for any period prior to the
                         Effective Date, (ii) income or franchise taxes;

                         g) All amounts due or payable to Seller as  adjustments
                         or refunds under any contracts or agreements  affecting
                         the Assets for all periods prior to the Effective Date;

                         h) All amounts due or payable to Seller as  adjustments
                         to  insurance  premiums  related  to the Assets for all
                         periods prior to the Effective Date;

                         i) Subject to the terms hereof,  all monies,  proceeds,
                         benefits,  receipts,  credits,  income or revenues (and
                         any security or other  deposits made)  attributable  to
                         the Assets prior to the Effective Date; and

                         j) All Seller's  patents,  trade  secrets,  copyrights,
                         names, marks and logos.

               B.  Conveyancing  Instruments.  "The  portion of the Assets to be
               conveyed  by Seller  which are  referred  to in Section  1.1.1 a)
               above shall be by special warranty of title, by through and under
               Seller.  The  remainder of the Assets to be conveyed by Seller to
               Buyer  pursuant to Section  1.1.1 shall be conveyed "AS IS, WHERE
               IS" with the express conditions and limitations contained in this
               Agreement.  The Assets to be  transferred  to Buyer  pursuant  to
               Section 1.1.1 shall be transferred  pursuant to an Assignment and
               Bill of Sale as provided in Section 10.2 hereof in  substantially
               the form of Exhibit "B" (the "Assignment").

               C. Seller's  Election to Effect IRC S1031  Exchange. In the event
               Seller so elects, Buyer agrees to accommodate Seller in effecting
               a  tax-deferred  exchange  under  Internal Revenue Code S1031, as
               amended.  Seller shall have the right to elect this tax -deferred
               exchange  at any time  prior to the date of  Closing.  If  Seller
               elects to effect a tax deferred exchange, Buyer agrees to execute
               additional  escrow  instructions,   documents,   agreements,   or
               instruments  to effect the  exchange,  provided  that Buyer shall
               incur no additional  costs,  expenses,  fees or  liabilities as a
               result of or connected with the exchange.

               D.  Suspended  Proceeds.  In the event the Assets  include  funds
               being held by Seller in suspense for the benefit of a third party
               or parties,  Seller shall  transfer  and pay to Buyer,  and Buyer
               agrees to accept  from  Seller and hold for the benefit of Seller
               and the party or parties entitled to receive payment thereof, all
               monies  representing the value or proceeds of production  removed
               or sold from the Assets and then held by Seller for accounts from
               which payment has been suspended,  such monies being  hereinafter
               called Suspended Proceeds.  Buyer shall be solely responsible for
               the proper  distribution of such proceeds to the party or parties
               entitled  to receive  payment of the same,  and hereby  agrees to
               indemnify,  defend  and hold  Seller  harmless  from  any  claims
               therefore to the extent of monies  transfered  for any particular
               suspended interest.

                                        8
<PAGE>                        
          

     I. PURCHASE PRICE AND EFFECTIVE DATE

               A. Purchase Price. As  consideration  for the sale of the Assets,
               Buyer shall pay to Seller or its respective designee, Two Hundred
               Two  Million   United  States  dollars   ($202,000,000.00)   (the
               "Purchase  Price"),  as set forth below.  The  Purchase  Price as
               adjusted in  accordance  with Section 2.4 shall be referred to as
               the "Adjusted Purchase Price."

                    1. A  deposit  in the  amount  of five  percent  (5%) of the
                    Purchase Price (the  "Deposit"),  or Ten Million One Hundred
                    Thousand  dollars   ($10,100,000.00)   shall  be  paid  upon
                    execution of this Agreement by Buyer,  but in no event later
                    than November 26, 1997.

                    2. The  balance  of the  Adjusted  Purchase  Price  less the
                    principal  amount  of the  Deposit,  exclusive  of  interest
                    earned,  shall  be paid at  Closing  by  wire  transfer,  in
                    immediately available funds, as provided below.


               B. Transfer of Purchase Price. The Deposit and Adjusted  Purchase
               Price  shall be paid by Buyer on the dates  provided  in Sections
               2.1.1 and 2.1.2 above by completed wire transfer,  in immediately
               available funds to:

                        Union Bank of California
                        ABA #122000496
                        Attn:  Domestic Custody
                        for further credit to Royal Palm Equity Exchange, Inc.
                        Account No. 250009060-01
                        Attn:  Aran King or Moon Lee


               C.  Allocation  of Purchase  Price. The  Purchase  Price shall be
               allocated among  tangibles and intangibles  comprising the Assets
               as follows:  Eighty  Percent (80%) of the Purchase Price shall be
               attributed  to the Leases and  associated  agreements  and Twenty
               Percent  (20%) of the Purchase  Price shall be  attributed to the
               wells,  equipment and other Personal  Property.  Buyer and Seller
               agree to be bound by the  allocation of the Purchase  Price among
               tangible and intangible Assets set forth herein for all purposes;
               to consistently  report such  allocations for all federal,  state
               and local  income tax  purposes;  and to timely  file all reports
               required  by the  Internal  Revenue  Code of  1986,  as  amended,
               concerning the Purchase Price allocations.

                                        9
                        
<PAGE>
            

               For any Purchase Price adjustments under Section 7 hereof,  Buyer
               and Seller have  mutually  agreed upon an  allocation of purchase
               price on a property by property basis as indicated on Exhibit "A"
               attached hereto.

               D.  Adjustments  to Purchase  Price.  The Purchase Price shall be
               adjusted in accordance with this Section 2.4.

                    1. The Purchase  Price shall be  increased by the  following
                    amounts (without duplication):

                         a)  subject to the  limitations  of  Section  9.1,  the
                         amount of all actual operating or capital  expenditures
                         or  prepaid   expenses   attributable   to  the  Assets
                         (inclusive  of  Seller's   overhead  or  administrative
                         expenses  attributable  or  allocable  to  the  Assets)
                         including,  without limitation,  royalties, rentals and
                         other similar charges, excise, severance and production
                         taxes and any other taxes based upon or measured by the
                         production of  hydrocarbons  or the receipt of proceeds
                         therefrom,  and,  subject to the limitations of Section
                         9.1,  expenses  paid to Seller or a third  person under
                         applicable   joint   operating   agreements   or  other
                         contracts or agreements  included in the Assets,  or in
                         the  absence of any joint  operating  agreement,  those
                         customarily  billed  under  such  agreement,  including
                         without limitation,  drilling,  completion,  reworking,
                         deepening,  side-tracking,   plugging  and  abandoning,
                         geological and geophysical and land costs paid by or on
                         behalf of Seller in  connection  with the  operation of
                         the Assets which are attributable to the period of time
                         from  the  Effective  Date  to  the  Closing  ("Closing
                         Period");

                         b) the value of  merchantable  liquid  hydrocarbons  in
                         storage above the pipeline  connection on the Effective
                         Date which are produced from or allocable to the Assets
                         prior to the Effective Date (it being  understood  that
                         such  value  shall be based on the price at which  such
                         hydrocarbons  were sold after the Effective  Date (on a
                         first-in,  first-out basis),  less applicable taxes and
                         royalty payments) ("Inventory Value");

                         c) the amount of any property or ad valorem  taxes paid
                         by Seller prorated in accordance with Section 5.1;

                                       10
<PAGE>
                         


                         d) any other amount agreed upon by Seller and Buyer;

                         e) an  amount  equal to any  appropriate  increases  in
                         value of the Assets,  as determined in accordance  with
                         Section 7.7; or

                         f) the value of capital  equipment  added to the Assets
                         between the date of this  Agreement  and the  Effective
                         Date.

                    2. The Purchase  Price shall be  decreased by the  following
                    amounts:

                         a) an amount  equal to the gross  proceeds  received by
                         Seller from the sale of  hydrocarbons,  both liquid and
                         gaseous, produced from or allocable to the Assets after
                         the Effective Date (during the Closing Period),  net of
                         all  applicable  taxes  not  reimbursed  to Seller by a
                         purchaser of hydrocarbons and royalty payments;

                         b) reductions  due to Title Failures as provided for in
                         Section 7.5;

                         c) reductions due to Material Contamination as provided
                         for in Section 8.3;

                         d) the  amount  of any  property  or ad  valorem  taxes
                         prorated in accordance with Section 5.1 and

                         e)  reductions  due to Force  Majeure  as  provided  in
                         Section 11.4.

               E.  Effective Date of Sale. The effective date of the sale of the
               Assets  described  in Section  1.1,  hereof,  shall be January 1,
               1998,  as of 7:00 a.m.,  local time where the Assets are  located
               (the "Effective Date").

II.  ALLOCATION OF REVENUES, ASSUMPTION OF LIABILITIES AND INDEMNIFICATION

               A. Allocation of Revenues. Seller shall receive all proceeds from
               the sale of hydrocarbons physically produced from or allocable to
               the Assets prior to the  Effective  Date,  and shall also receive
               all  other  revenues  and  benefits  attributable  to the  Assets
               accruing or relating to all periods  before the  Effective  Date.
               Buyer shall  receive all proceeds  from the sale of  hydrocarbons
               physically  produced  from or allocable to the Assets on or after
               the  Effective  Date,  and shall also receive the proceeds of all
               other revenues and benefits  attributable  to the Assets accruing
               or relating to all periods after the Effective Date.


                                       11
                        
<PAGE>

               B.  Payment of  Invoices.  After the  Closing,  Seller  shall be
               required to pay only that portion of invoices  received  that are
               applicable to work  performed or material  received in the period
               prior to the Effective Date;  other charges and invoices shall be
               returned to the vendor for rebilling to Buyer.  Similarly,  after
               the  Closing,  Buyer  shall pay only  that  portion  of  invoices
               received  that  are  applicable  to work  performed  or  material
               received in the period on or subsequent  to the  Effective  Date;
               other  charges  and  invoices  will be returned to the vendor for
               rebilling to Seller.

               C. Liabilities After Closing and Indemnities.

                    1. As additional  consideration  for the sale of the Assets,
                    Buyer  shall  timely  and  fully  satisfy  all   Abandonment
                    Obligations  associated with the Assets. As used herein, the
                    term  Abandonment  Obligations  shall mean and  include  all
                    obligations  associated  with  and  liability  for  (i)  the
                    plugging  and  abandonment  of all wells,  either  active or
                    inactive,  (ii)  the  removal  of  structures,   facilities,
                    foundations,   pits,  ponds,  wellheads,  tanks,  pipelines,
                    flowlines, pumps, compressors,  separators, heater treaters,
                    valves,  fittings and  equipment and machinery of any nature
                    and all materials  contained therein,  located on or used in
                    connection with the Assets, (iii) the clearance, restoration
                    and remediation of the surface and subsurface of the Assets,
                    and (iv)  the  removal,  remediation  and  abatement  of any
                    petroleum   material,   any   contamination   or   pollution
                    (including, without limitation,  spilling, leaking, pumping,
                    pouring, emitting, emptying, discharging,  leaching, dumping
                    or   disposing  of  any   chemical   substance,   pollutant,
                    contaminant,   toxic   substance,    radioactive   material,
                    hazardous substance,  NORM, waste, saltwater,  crude oil, or
                    petroleum product) of the surface (including surface water),
                    subsurface (including groundwater) air or subsurface strata,
                    all  in  accordance   with  or  as  required  by  applicable
                    agreements,    implied   or   express,   including   without
                    limitation,    leases,   unit   agreements   and   operating
                    agreements,  or by law, regulation,  order, permit, judgment
                    or decree.  Except as to Claims  asserted  or filed prior to
                    the Effective  Date,  Buyer shall protect,  indemnify,  hold
                    harmless  and  defend  Seller,  its  affiliates,   officers,
                    directors, employees and agents, against any and all claims,
                    demands, losses, liabilities, liens, judgments, settlements,
                    suits, causes of action, fines, penalties,  fees (including,
                    without  limitation,   attorney"s  fees),  costs,   expenses
                    (including,  without  limitation,  expenses  associated with
                    investigation  of claims,  testing and  assessment)  whether
                    based on any theory of liability, including, but not limited
                    to, tort, breach of contract (express or implied), breach of
                    warranty (express or implied), strict liability,  regulatory
                    liabilty, or statutory liability,  and whether arising from,
                    resulting  from or related to Buyer's  failure to timely and
                    fully  satisfy  the  Abandonment  Obligations  or under  any
                    obligations   under  this   Agreement   or  imposed  by  any
                    applicable statutes, laws, rules, or regulations, or orders.
                    Buyer further agrees to take whatever  actions are necessary
                    to protect  Seller from being  subjected to any such claims,
                    demands, losses, liabilities, liens, judgments, settlements,
                    suits, causes of action, fines,  penalties,  fees, costs, or
                    expenses,  including,  but not  limited to  remediation  and
                    restoration,  and will  comply with  reasonable  requests by
                    Seller that Buyer take such action. Any future conveyance of
                    the Assets shall specifically reference and describe Buyer's
                    obligations  to Seller set forth  herein  and any  purchaser
                    thereunder  shall  expressly  acknowledge  and  assume  said
                    obligations.

                                       12
<PAGE>

                  

                    2. Buyer shall observe and comply with all covenants, terms,
                    and  provisions,   express  or  implied,  contained  in  the
                    agreements,    leases,   easements,   permits,   commingling
                    authorizations and other contracts  appertaining to Seller's
                    interest  in the  Assets as of the time of  Closing  of this
                    purchase  and  sale;  and  this  purchase  and  sale is made
                    expressly  subject  to all  agreements,  leases,  easements,
                    permits,  commingling  authorizations  and other  contracts,
                    whether or not the same are herein specifically  identified.
                    Buyer shall assume and be responsible for all obligations of
                    Seller  accruing under such  agreements  after the Effective
                    Date."The Buyer shall assume operations effective January 1,
                    1998,  and  shall  be   responsible   for  the  payment  for
                    production  which  accrues  from and after  that  date.  The
                    Seller shall  indemnify  the Buyer for all payments made for
                    production  which accrued prior to the Effective Date in all
                    respects."

                    3. As  used in any  provision  of this  Agreement,  "Claims"
                    shall  mean  all  liabilities,   losses,   costs,   damages,
                    expenses, penalties, fines, obligations, judgments, costs of
                    investigation,    attorney's   fees,   expert's   fees   and
                    disbursements  of  any  kind  or of any  nature  whatsoever,
                    claims,  actions,   causes  of  action,  demands,   filings,
                    investigations,  administrative  proceedings,  arbitrations,
                    mediations, suits or other legal proceedings.

                    4. Buyer shall  defend,  protect,  indemnify and hold Seller
                    harmless  against any and all Claims  resulting from any and
                    all damages, liabilities,  claims, demands, orders and suits
                    or  causes  of  action  asserted  or filed  on or after  the
                    Effective Date in any way arising from ownership, operations
                    or  activities  related to the Assets and the  contracts and
                    agreements appertaining thereto including but not limited to
                    acts or omissions of Seller, based upon any theory,  whether
                    in  contract,  negligence,  willful  misconduct,   liability
                    without fault, strict, liability, tort or other.

                    5.  Buyer  specifically  assumes  the  risk of  description,
                    title, and the condition of the Assets and shall inspect the
                    Assets prior to the Closing. Such inspection shall cover but
                    not be limited to the physical and environmental  condition,
                    both surface and subsurface,  of the Assets.  Buyer shall as
                    part of its  environmental  assessment test for the presence
                    of Naturally Occurring  Radioactive  Materials  (hereinafter
                    referred  to  as  "NORM").  The  generation,  formation,  or
                    presence  of  NORM  in or on the  Assets  shall,  after  the
                    Effective Date set forth herein, be the sole  responsibility
                    of the Buyer and the Buyer shall defend,  indemnify and hold
                    Seller  harmless from any and all Claims  resulting from any
                    and  all  claims,  demands,  losses,   liabilities,   liens,
                    judgments,  settlements,  suits,  causes of  action,  fines,
                    penalties,  fees (including,  without limitation,  attorneys
                    fees) costs, expenses,  whether based on any theory of tort,
                    breach of contract,  strict liability or statutory liability
                    asserted or filed on or after the Effective  Date in any way
                    arising from,  resulting  from or related to the presence of
                    NORM. Buyer agrees that any future  assignment of the Assets
                    shall contain similar  language binding its assignee and all
                    further assignees concerning the presence of NORM.

                                       13
                        
<PAGE>
                

       III. ESCROW AGREEMENT

               A. Form, Amount, Timing. SEE ATTACHED EXHIBIT A-4

       IV.  TAXES AND PAYABLES

                    Payment of Taxes. All real estate,  occupation,  ad valorem,
                    personal  property  taxes and  charges  on any of the Assets
                    shall be prorated as of the Effective Date. Seller shall pay
                    all such items for all periods  prior to such date and shall
                    be entitled to all refunds, recoupments, rebates and credits
                    with regard to such periods. Seller shall be responsible for
                    all oil and gas production  taxes,  windfall  profits taxes,
                    and  any  other  similar  taxes  applicable  to oil  and gas
                    production  occurring prior to the Effective Date, and Buyer
                    shall be  responsible  for all such taxes  applicable to oil
                    and gas  production  occurring  on and after  the  Effective
                    Date.  Buyer  shall be  responsible  for all sales,  use and
                    similar tax  arising  out of the sale of the Assets.  At the
                    Closing, Buyer shall pay Seller all state and local sales or
                    use taxes  applicable to that portion of the Assets which is
                    tangible  personal  property,  and Seller  shall  remit such
                    amount to the  appropriate  taxing  authority in  accordance
                    with applicable law, provided,  however, that if Buyer holds
                    a direct  payment  permit  which is valid at the time of the
                    Closing, Buyer shall assume all responsibility for remitting
                    to the  appropriate  taxing  authority  the  state and local
                    sales and use taxes due, and shall  provide  Seller with any
                    exemption certificates or other documentation required under
                    applicable law in lieu of paying Seller the taxes due. Buyer
                    shall hold harmless and shall indemnify Seller for any sales
                    or use taxes assessed against Seller by any taxing authority
                    in  respect  of this  sale,  including  the  amounts  of any
                    penalties,  interest and attorney's  fee. Any legal expenses
                    incurred   by   Seller   to  reduce  or  avoid  any  of  the
                    aforementioned taxes attributable to Buyer, shall be paid or
                    reimbursed by the Buyer.

                    Should  this  purchase  and sale  constitute  an isolated or
                    occasional  sale and not be subject to sales or use tax with
                    any of the taxing authorities having  jurisdiction over this
                    transaction,  no sales tax will be  collected by Seller from
                    Buyer at the date of  Closing.  Seller  agrees to  cooperate
                    with Buyer in  demonstrating  that the  requirements  for an
                    isolated or occasional sale or any other sales tax exemption
                    have been met.

                                       14
                        
<PAGE>
            

       V.   REPRESENTATIONS AND WARRANTIES
     
               A. Seller's Representations and Warranties. Seller represents and
               warrants to Buyer that,  as of the date hereof and as of Closing,
               the following statements are accurate:

                    1.  Seller  is a  corporation  duly  organized  and  validly
                    existing,  in good standing,  under the laws of the State of
                    Pennsylvania.  Seller has the corporate  power and authority
                    to own its  property  and to  carry on its  business  as now
                    conducted  and to enter  into and to carry  out the terms of
                    this Agreement.

                    2. The  execution  and  delivery of this  Agreement  and the
                    consummation of the  transactions  contemplated  hereby have
                    been duly  authorized by all necessary  corporate  action on
                    behalf of Seller and Seller is not  subject to any  charter,
                    by-  law,  lien,  or  encumbrance  of any  kind,  agreement,
                    instrument,  order,  or decree of any court or  governmental
                    body (other than any governmental  approval  required) which
                    would prevent consummation of the transactions  contemplated
                    by this Agreement.

                    3. Seller is not a party to, or in any way obligated  under,
                    nor does  Seller  have any  knowledge  of, any  contract  or
                    outstanding  claim  for  the  payment  of  any  broker's  or
                    finder's  fee in  connection  with the origin,  negotiation,
                    execution,  or performance of this Agreement for which Buyer
                    will have any liability.

                    4.  EXCEPT AS  EXPRESSLY  PROVIDED  IN THIS  AGREEMENT,  THE
                    ASSETS  ARE TO BE SOLD AS IS,  WHERE IS AND WITH ALL  FAULTS
                    AND SELLER MAKES NO WARRANTY OR  REPRESENTATION,  EXPRESS OR
                    IMPLIED IN FACT OR BY LAW, WITH RESPECT TO ORIGIN, QUANTITY,
                    QUALITY, OPERATING CONDITION,  SAFETY OF EQUIPMENT, TITLE TO
                    PERSONAL PROPERTY,  TITLE TO REAL PROPERTY,  COMPLIANCE WITH
                    GOVERNMENT  REGULATIONS,  MERCHANTABILITY,  FITNESS  FOR ANY
                    PARTICULAR  PURPOSES,  CONDITION,  THE  QUANTITY,  VALUE  OR
                    EXISTENCE  OF  RESERVES  OF  OIL,  GAS  OR  OTHER   MINERALS
                    PRODUCIBLE  OR  RECOVERABLE  FROM THE  LEASES OR  WELLS,  OR
                    OTHERWISE, CONCERNING ANY OF THE ASSETS. ALL WELLS, PERSONAL
                    PROPERTY, DATA, RECORDS, MACHINERY, EQUIPMENT AND FACILITIES
                    THEREIN,  THEREON AND APPURTENANT THERETO ARE TO BE CONVEYED
                    BY SELLER AND ACCEPTED BY BUYER  PRECISELY  AND ONLY "AS IS,
                    WHERE IS".

                                       15
<PAGE>
                      
                 

               B. Buyer's  Representations and Warranties.  Buyer represents and
               warrants to Seller that, as of the date hereof and as of Closing,
               the following statements are accurate:

                    1.  Buyer  is  a  corporation  duly  organized  and  validly
                    existing,  in good standing,  under the laws of the State of
                    Texas and is or will be prior to Closing,  duly qualified to
                    carry on its  business  in each of the states in which it is
                    required to be  qualified  and has the  corporate  power and
                    authority  to own its  property and to carry on its business
                    as now  conducted  and to enter  into  and to carry  out the
                    terms of this Agreement and the transactions contemplated by
                    this Agreement.

                    2. The  execution  and  delivery of this  Agreement  and the
                    consummation of the  transactions  contemplated  hereby have
                    been duly  authorized by all necessary  corporate  action on
                    behalf  of Buyer and Buyer is not  subject  to any  charter,
                    by-law,   lien  or  encumbrance  of  any  kind,   agreement,
                    instrument,  order or decree  of any  court or  governmental
                    body  which  would  prevent   consummation  of  the  actions
                    contemplated by this Agreement.

                    3. Buyer is not a party to, or in any way  obligated  under,
                    nor does  Buyer  have any  knowledge  of,  any  contract  or
                    outstanding  claim  for  the  payment  of  any  broker's  or
                    finder's  fee in  connection  with the origin,  negotiation,
                    execution, or performance of this Agreement for which Seller
                    will have any liability.

                    4. Buyer shall comply with all applicable laws,  ordinances,
                    rules and regulations and shall promptly obtain and maintain
                    all permits  required by public  authorities  in  connection
                    with the Assets purchased.

                    5.  Buyer has  made,  or  arranged  for  others to make,  an
                    inspection  of the  Assets.  Subject to  Seller's  foregoing
                    representations  and  warranties,  Buyer,  at Closing,  will
                    accept all Assets in "as is and where is" condition, with an
                    expressed    acceptance    and    understanding    of    the
                    representations and disclaimers contained herein.

                    6. Buyer acknowledges that the Assets have been used for oil
                    and gas drilling and  producing  operations,  transportation
                    operations,  related  oilfield  operations  and possibly the
                    storage and  disposal of waste  materials  incidental  to or
                    occurring  in  connection  with  such  operations,  and that
                    physical  changes in the land may have  occurred as a result
                    of such uses and that Buyer has entered into this  Agreement
                    on the basis of Buyer's own  investigation  of the  physical
                    condition of the Assets,  including  subsurface  conditions.
                    Buyer is acquiring  the Assets  precisely and only in an "as
                    is and where is" condition and assumes the risk that adverse
                    physical  conditions  including,  but not  limited  to,  the
                    presence of unknown  abandoned  oil and gas wells,  pits and
                    landfills, flowlines, pipelines, water wells and sumps which
                    may not have been  revealed  by  Buyer's  investigation  are
                    located   thereon.   Buyer  hereby  agrees  to  assume  full
                    responsibility   for  compliance  with  all  obligations  or
                    regulations  concerning  all of such  conditions,  known  or
                    unknown,  and further  agrees to indemnify  Seller for same,
                    including, but not limited to, indemnification for liability
                    under all Environmental Laws, as defined in this Agreement.

                                       16
<PAGE>
                      

                 

                    7. WAIVER OF CONSUMER RIGHTS.  BUYER WAIVES ITS RIGHTS UNDER
                    THE TEXAS DECEPTIVE TRADE PRACTICES-CONSUMER PROTECTION ACT,
                    SECTION 17.41 et seq., TEXAS BUSINESS & COMMERCE CODE, A LAW
                    THAT GIVES CONSUMERS  SPECIAL RIGHTS AND PROTECTIONS.  AFTER
                    CONSULTATION  WITH AN  ATTORNEY  OF BUYER'S  OWN  SELECTION,
                    BUYER VOLUNTARILY CONSENTS TO THIS WAIVER.

                    TO THE EXTENT APPLICABLE TO THE TRANSACTIONS CONTEMPLATED BY
                    THIS  AGREEMENT,  BUYER ALSO WAIVES THE  PROVISIONS OF TITLE
                    75,  CHAPTER  24 OF THE  MISSISSIPPI  CODE,  "REGULATION  OF
                    BUSINESS FOR CONSUMER PROTECTION".

                    8. IN ORDER TO  EVIDENCE  ITS  ABILITY  TO GRANT  THE  ABOVE
                    WAIVERS, BUYER HEREBY REPRESENTS AND WARRANTS TO SELLER THAT
                    BUYER (I) IS IN THE  BUSINESS  OF SEEKING OR  ACQUIRING,  BY
                    PURCHASE  OR LEASE,  GOODS OR  SERVICES  FOR  COMMERCIAL  OR
                    BUSINESS USE, (II) HAS KNOWLEDGE AND EXPERIENCE IN FINANCIAL
                    AND  BUSINESS  MATTERS THAT ENABLE IT TO EVALUATE THE MERITS
                    AND RISKS OF THE TRANSACTION  CONTEMPLATED  HEREBY AND (III)
                    IS NOT IN A SIGNIFICANTLY DISPARATE BARGAINING POSITION.

       VI.  TITLE MATTERS.

               A. Asset Title Review.  Prior to Closing,  Seller will have made
               available to Buyer,  without  express or implied  warranty of any
               kind  regarding the accuracy of such  information,  copies of all
               information in Seller's  possession  regarding  Seller's title to
               the Assets, which information Buyer may copy at its sole cost and
               expense  (unless  prohibited  by agreement  between  Seller and a
               third party). Buyer may review the information at Seller's office
               at 11111 S. Wilcrest, Houston, Texas 77236; or any other location
               where such  information may be available,  depending on the files
               reviewed. Except as otherwise provided in this Agreement,  Seller
               shall  not  perform  any  additional  title  work.  Any  existing
               abstracts  and title  opinions have not been made and will not be
               made current by the Seller.  Buyer  specifically  agrees that any
               conclusions  made from any examination  done or caused to be done
               have resulted and shall result from its own  independent  review,
               skill,  knowledge and judgment  only.  With regard to Buyer's due
               diligence   review   of   Seller's   files,   Buyer  or   Buyer's
               representative,  will be  entitled  to review and audit  Seller's
               records, including but not limited to, confirmation of review and
               direct lease  operating  expenses  covering the previous two year
               periods  (1995 and 1996) and the interim  period from  January 1,
               1997 through September 30, 1997.

                                       17
<PAGE>
                       
           

               B. Title  Adjustments.  If prior to Closing Buyer  determines the
               existence  of a "Title  Defect" as defined in Section  7.3 below,
               Buyer  shall  notify  Seller  in  writing  of  any  matter  Buyer
               considers to be a Title Defect as soon as Buyer  becomes aware of
               such Title Defect but, in any event,  by not later than 4:00 p.m.
               CST on December 17, 1997 (the "Defect Notice Date").  Such notice
               ("Notice  of  Title   Defect")   shall  include  (i)  a  specific
               description of the matter Buyer asserts as a Title Defect, (ii) a
               specific  description  of the Asset or portion of the Assets that
               is affected by the Title Defect, (iii) Buyer's calculation of the
               amount by which each Title Defect has diminished the value of the
               Assets,  such amount to be  determined by Buyer in good faith and
               in a commercially  reasonable  manner, and (iv) all necessary and
               desirable supporting documentation. Buyer shall be deemed to have
               waived any Title Defect which Buyer fails to assert in its Notice
               of Title Defect on or before the Defect Notice Date.

               C. Title  Defect.  The term  "Title  Defect"  shall  refer to any
               defect or deficiency in title, except for Permitted  Encumbrances
               that (i) creates a lien,  claim,  encumbrance or other obligation
               affecting the interests of Seller in the Assets,  (ii) diminishes
               Seller's net revenue  interest  (defined as Seller's share of the
               proceeds  from  the  sale  of  hydrocarbons   produced  from  and
               allocable  to  the  Assets,  net  of  all  royalties,  overriding
               royalties,  or  other  burdens  on  production  or  non-operating
               interests applicable thereto) from that set forth on Exhibit "A",
               (iii) increases  Seller's working  interest  (defined as Seller's
               share of the costs of operation,  development or production borne
               by the owner of such interest) from that set forth in Exhibit "A"
               without  a   corresponding   increase  in  Seller's  net  revenue
               interest, or which creates an obligation to pay costs or expenses
               in an amount greater than such interest.

               D.  Permitted  Encumbrances.  As used in this  Section,  the term
               "Permitted Encumbrance" means:

                    a)   lessor's   royalties,    non-participating   royalties,
                    overriding  royalties,  and  division  orders  and sales and
                    transportation  contracts  containing  customary  terms  and
                    provisions  covering  oil,  gas or  associated  liquefied or
                    gaseous hydrocarbons,  reversionary  interests,  and similar
                    burdens if the net  cumulative  effect of such  burdens does
                    not operate to reduce the net revenue  interest in any Asset
                    to an amount less than the net revenue interest set forth on
                    Exhibit  "A" or increase  the working  interest of any Asset
                    from that set forth in Exhibit "A"  without a  corresponding
                    increase in the revenue interest;

                                       18
<PAGE>
                        
              

                    b)  subject  to  the   provisions  of  Section  9.2  hereof,
                    preferential     rights    to    purchase    and    required
                    non-governmental  third party  consents to  assignments  and
                    similar  agreements  with  respect to which prior to Closing
                    (i) waivers or consents  are obtained  from the  appropriate
                    parties,  or (ii) the appropriate  time period for asserting
                    such rights has expired without an exercise of such rights;

                    c) liens for taxes or assessments  not yet due or delinquent
                    or, if delinquent, that are being contested in good faith in
                    the normal course of business;

                    d) all rights to consent by,  required  notices to,  filings
                    with,   or  other  actions  by   governmental   entities  in
                    connection with the sale or conveyance of oil and gas leases
                    or interests therein,  if the same are customarily  obtained
                    subsequent to such sale or  conveyance  and Buyer and Seller
                    have no reason to believe they cannot be obtained;

                    e) conventional  rights of reassignment  requiring less than
                    ninety (90) days notice to the holders of such rights;

                    f) such Title Defects as Buyer may have waived;

                    g) easements,  rights-of way, servitudes,  permits,  surface
                    leases and other  rights in  respect of surface  operations;
                    provided  they  do not  materially  interfere  with  Buyer's
                    operation or use of the Assets;

                    h) defects,  irregularities  and deficiencies in title of or
                    to any  rights-of-way,  easements,  surface  leases or other
                    rights which in the aggregate do not  materially  impair the
                    use of such  rights-of-way,  easements,  surface  leases  or
                    other  rights for the  purpose of which such  rights will be
                    held by Buyer and would not have a material  adverse  effect
                    on the operation or value of any of the Assets;

                    i)  environmental  laws and  regulations to the extent valid
                    and applicable to the Assets;

                    j)   vendors',   carriers',   warehousemen's,    repairmen's
                    mechanics' workmen's,  materialmen's,  construction or other
                    like  liens  arising  by  operation  of law in the  ordinary
                    course  of  business  or  incident  to the  construction  or
                    improvement of any property in respect of obligations  which
                    are not yet due;

                    k)  all  other   liens,   claims,   charges,   encumbrances,
                    contracts, agreements,  instruments,  obligations,  defects,
                    and   irregularities   affecting  the  Assets   relating  to
                    obligations not yet in default, and/or which individually or
                    in the  aggregate  are not such as to  interfere  materially
                    with the operation,  value, or use of any of the Assets,  do
                    not materially  prevent Buyer from receiving the proceeds of
                    production  from the  Assets,  do not reduce the net revenue
                    interest  of any of the Assets to less than the net  revenue
                    interest set forth on Exhibit "A" and do not obligate  Buyer
                    to bear  costs and  expenses  relating  to the  maintenance,
                    development,  and  operation of any of the  interests in any
                    amount  greater  than  the  working  interest  set  forth on
                    Exhibit "A" (unless the net revenue  interest for such Asset
                    is  greater  than  the net  revenue  interest  set  forth in
                    Exhibit "A" in the same  proportion  as any increase in such
                    working interest).

                                       19
<PAGE>
                   
               

               E. Remedies for Title Failures. With respect to each Title Defect
               asserted  by  Buyer in the  Notice  of Title  Defect,  if  Seller
               requests,  Seller and Buyer  shall  discuss  and agree  whether a
               particular matter  constitutes a Title Defect.  Seller shall have
               the  right  but  not the  obligation  to cure  any  Title  Defect
               asserted in such Notice at its own expense  prior to Closing,  in
               which  case  the  parties  shall   proceed  to  Closing   without
               adjustment  of the  Purchase  Price.  If Seller fails to cure any
               Title  Defect on or prior to Closing,  it shall be deemed to be a
               title failure  ("Title  Failure") for the relevant  Asset.  Buyer
               shall not be entitled to any  adjustment  to the  Purchase  Price
               until  such time as the  Title  Failures  aggregate  to 3% of the
               initial  unadjusted  Purchase Price set forth in Section 2.1 (the
               Deductible  Amount").   Notwithstanding  the  provisions  of  the
               foregoing  sentence or any other provision of this Agreement,  it
               is specifically agreed and understood that liquidated amounts due
               and owing in  respect  of  vendors',  carriers',  warehousemen's,
               repairmen's,  mechanics', workmen's, materialmen's,  construction
               or other  like  liens  shall not be  included  in the  Deductible
               Amount,  but shall  otherwise  be  treated  as Title  Defects  in
               accordance with the provisions of Section 7,  including,  without
               limitation,  the  provisions  of Section 7.5  (a)-(c).  Buyer and
               Seller shall negotiate in good faith to reach agreement regarding
               the value of any Title Failure,  and unless waived by Buyer shall
               mutually  agree to one of the  following  options with respect to
               each Title Failure:

                    a) if the Title  Failure  results from a  difference  in net
                    revenue interest from that shown on Exhibit "A", the parties
                    shall proceed to Closing and reduce the Purchase Price by an
                    amount  ("Defect  Amount")  determined  by  multiplying  the
                    Purchase Price by a fraction the numerator of which shall be
                    the difference between the actual net revenue interest being
                    conveyed and the net revenue  interest  shown on Exhibit "A"
                    and the  denominator  of  which  shall  be the  net  revenue
                    interest shown on Exhibit "A";

                    b) if the Title  Failure  results from a  difference  in the
                    working interest from that shown on Exhibit "A", the parties
                    shall proceed to Closing and reduce the Purchase  Price by a
                    Defect Amount  determined by multiplying  the Purchase Price
                    by a fraction the numerator of which shall be the difference
                    between the actual  working  interest being conveyed and the
                    working interest shown on Exhibit "A" and the denominator of
                    which shall be the working interest shown on Exhibit "A";

                                       20
<PAGE>
                        
               

                    c) if the Title Failure is one other than described in items
                    (a) or (b), the Defect Amount shall be an amount  determined
                    in good faith by the mutual  agreement  of Buyer and Seller,
                    taking into account the portion of the Purchase  Price to be
                    allocated by agreement of Seller and Buyer to the portion of
                    the Assets  affected by the Title Failure,  the legal effect
                    of the Title Failure,  and the potential  economic effect of
                    the Title Failure over the life of the Assets.

               F. Termination Amount.  Notwithstanding  anything to the contrary
               herein,  if the aggregate  amount of  adjustments to the Purchase
               Price for Title  Failures  reaches an amount  equal to 25% of the
               initial  unadjusted  Purchase Price set forth in Section 2.1 (the
               "Termination  Amount"),  either  Buyer or Seller  shall  have the
               option to terminate this Agreement,  without any liability,  upon
               written notice to the other party on or prior to the Closing. For
               purposes of  determining  each party's  right to  terminate  this
               Agreement  pursuant  to this  Section  7.6,  the  amount of Title
               Defect  adjustments  shall be the  amounts  set forth in  Buyer's
               Notices  of Title  Defects  unless  Buyer and  Seller  agree to a
               lesser  amount in  accordance  with  Section 7.5. If either party
               exercises its option to terminate this Agreement pursuant to this
               Section 7.6, this Agreement shall become void and have no effect,
               and  neither  party  shall have any  further  right or duty to or
               claim  against the other party  under this  Agreement,  except as
               expressly  provided  to the  contrary in this  Agreement.  In the
               event of termination under this Section 7.6, the Deposit shall be
               refunded to Buyer.

               G.  Increase in Purchase  Price.  Seller  shall be entitled to an
               increase in the  Purchase  Price with  respect to any interest to
               which  Seller has (i) record  title  ownership  of a net  revenue
               interest that is greater than the net revenue  interest set forth
               on Exhibit A of this Agreement and/or (ii) an ownership  interest
               in any Personal Property greater than the interest for such Asset
               set forth on Exhibit A (the "Additional Interest").  In the event
               that Seller is entitled to an adjustment,  such adjustment  shall
               be calculated in the same manner as downward  adjustments  to the
               Purchase Price.

       VII. ENVIRONMENTAL MATTERS

               A. Environmental  Review.  Promptly after signing this Agreement,
               Buyer shall have access to  environmental  data in Seller's files
               for  the  Assets  to be  sold  herein.  Buyer  shall  review  the
               information at Seller's office at 1301 McKinney,  Houston,  Texas
               77010 or other locations specified by Seller.  Buyer specifically
               acknowledges that such access is given as an accommodation  only,
               that  Seller  makes  no  representations  whatsoever  as  to  the
               accuracy,  completeness, or reliability of any such environmental
               information so or otherwise disclosed to or obtained by Buyer and
               that  Buyer  relies  and  depends  on and  uses  any and all such
               environmental  information  exclusively  and  entirely at its own
               risk and without any recourse to Seller whatsoever.  Seller shall
               cooperate  with  Buyer  for  the  performance  by  Buyer  of  any
               additional   environmental  testing  at  Buyer's  expense,  which
               testing  shall be conducted  in a reasonable  manner so as not to
               interfere with Seller's  operation of the Assets,  and Seller and
               Buyer shall cooperate to ensure that such testing is performed on
               an expedited basis before Closing.

                        21
<PAGE>
                       
           

               B. Material Contamination. If as a result of information provided
               pursuant to Section  8.1,  or any  additional  information  which
               Buyer  obtains  from other  sources,  or any such testing done by
               Buyer,  it is  determined  prior to Closing that the  environment
               associated  with  the  Assets  has been  materially  contaminated
               ("Materially  Contaminated"  or  "Material  Contamination",  such
               terms  being  defined as the  violation  of  existing  applicable
               federal or state  laws or  regulations  or common law  principles
               existing as of the Effective Date, with respect to  environmental
               conditions,  to the extent that as to each claim or all claims in
               the aggregate (i) prosecution, if instituted, would be reasonably
               likely  to  result  in a  penalty,  fine  or  damage  payment  of
               $500,000.00  or more  or (ii)  removal  and  remediation  of such
               contamination  required  by federal or state laws or  regulations
               existing as of the Effective  Date would be reasonably  likely to
               result in  expenditures  of  $500,000.00  or more),  Buyer  shall
               notify   Seller  in  writing   of  any  and  all  such   Material
               Contamination claims no later than 4:00 p.m. CST, on December 17,
               1997. Such notification shall include (i) a detailed  description
               of  such  claims,  (ii) a copy of any  environmental  assessment,
               reports,  data and  information  pertaining  to such claims,  and
               (iii) Buyer's calculation of the amount by which such claims have
               diminished the value of the Assets,  such amount to be determined
               by Buyer in good faith and in a commercially  reasonable  manner.
               As used in this  Section 8, the term  Damages  shall mean any and
               all  claims,  demands,  losses,  liabilities,  liens,  judgments,
               settlements,  suits, causes of action, fines, penalties, fees, or
               expenses (including but not limited to reasonable attorneys' fees
               and all costs of court,  reasonable  costs of  investigating  any
               claim, site assessments, testing and remedial actions).

               C. Remedies for Material Contamination. Either:

                    a)  Buyer  shall  correct  or  make   arrangements  for  the
                    correction  of such Material  Contamination  and the parties
                    shall  proceed to Closing  with a reduction  of the Purchase
                    Price in an amount  mutually  agreed to by the  parties  and
                    with  Buyer  defending,   indemnifying  and  holding  Seller
                    harmless  against all Damages  attributable to such Material
                    Contamination; or

                    b) Prior to or at Closing,  Seller and Buyer shall  mutually
                    agree in writing separate and apart from this Agreement that
                    Buyer  shall  accept  the Assets  subject  to such  Material
                    Contamination,  that the  parties  shall  proceed to Closing
                    without  adjustment of the Purchase  Price,  and that Seller
                    shall indemnify Buyer against all Damages  incurred by Buyer
                    with respect to such Material  Contamination up to but in no
                    event to exceed 5% of the initial unadjusted  Purchase Price
                    set forth in Section 2.1 and only as to that portion of such
                    Damages  which are in excess of  $500,000.00  of the initial
                    unadjusted  Purchase  Price set forth in Section 2.1.  (such
                    amounts being  cumulative for any and all claims of Material
                    Contamination made by Buyer).

                                       22
<PAGE>

                    If the parties are unable to agree upon one of the foregoing
                    options,  either party shall be entitled to  terminate  this
                    Agreement without further liability for either party, unless
                    Buyer agrees to waive such Material Contamination and assume
                    all liability and  obligations  relating  thereto.  If Buyer
                    does not agree to waive Material Contamination,  the Deposit
                    shall be refunded to Buyer.  Each party shall cooperate with
                    the  other  party's  reasonable  corrective  work,  and  any
                    operations unreasonably interfering with the corrective work
                    shall cease until correction is completed.

               D.  Indemnities  for  Material  Contamination.   The  indemnities
               provided  for in  paragraphs  (a)-(c) of Section 8.3 by Buyer and
               Seller,  as the case may be, for  Damages  relating  to  Material
               Contamination  identified  in the notice to Seller under  Section
               8.2 shall include,  without limitation,  an agreement to protect,
               indemnify,  hold harmless and defend the Buyer or Seller,  as the
               case may be, its affiliates,  officers, directors,  employees and
               agents, against any and all claims, demands, losses, liabilities,
               liens,  judgments,  settlements,  suits, causes of action, fines,
               penalties, fees (including, without limitation, attorney's fees),
               costs,   expenses   (including,   without  limitation,   expenses
               associated with investigation of claims,  testing and assessment)
               whether  based on any  theory of  liability,  including,  but not
               limited to, tort, breach of contract (express or implied), breach
               of warranty (express or implied),  strict  liability,  regulatory
               liability, or statutory liability,  arising under any obligations
               under this Agreement or imposed by any applicable statutes, laws,
               rules, or regulations,  or orders.  The indemnities  will further
               include an agreement by the party  providing the  indemnification
               to take whatever actions are necessary to protect the party being
               indemnified  from being  subjected to any such  claims,  demands,
               losses, liabilities, liens, judgments, settlements, suits, causes
               of action,  fines,  penalties,  fees,  costs or expenses,  and to
               comply with  reasonable  requests by the party being  indemnified
               take such actions.

               E. Post-Closing Environmental Indemnification by Buyer. As of the
               Closing,  Buyer specifically assumes and shall be responsible for
               all obligations  and liabilities and shall defend,  indemnify and
               hold Seller  harmless in accordance  with Section 3.3  including,
               but not  limited  to,  indemnification  for  liability  under any
               federal,  state or local  laws,  rules,  orders  and  regulations
               (i.e., any "Environmental  Law", which specifically  includes but
               is not  limited to the  Occupational  Safety and Health  Act,  29
               U.S.C.A.  S651, et seq.; the Resource  Conservation  and Recovery
               Act, 42 U.S.C.A. S6901, et seq.; the Comprehensive  Environmental
               Response,  Compensation, and Liability Act, 42 U.S.C.A. S9601, et

                                       23
<PAGE>

               seq.;  the Clean Water Act, 33 U.S.C.A.  S1251 et seq.; the Clean
               Air Act, 42 U.S.C.A. S7401, et seq.; the Safe Drinking Water Act,
               42 U.S.C.A.  S3001, et seq.; the Toxic Substances Control Act, 15
               U.S.C.A.  S2601  et  seq.;  the Oil  Pollution  Act of  1990,  33
               U.S.C.A.  S2701 et seq.;  and all rules,  regulations  and orders
               adopted  under the  foregoing  statutes  applicable  to any waste
               material,  produced water, tank bottoms,  sludge, or constituents
               thereof,  radioactive  materials,  or hazardous  substances on or
               included  with the Assets or the presence,  disposal,  release or
               threatened  release of all waste material,  produced water,  tank
               bottoms, sludge, or constituents thereof,  radioactive materials,
               or hazardous  substances,  on,  included with, or from the Assets
               into the  atmosphere  or in or upon land or any  water  course or
               body of water,  whether above or below the ground,  and all other
               federal,  state and local  environmental and oil and gas laws and
               regulations,   as  well  as  all  acts,   laws,  and  regulations
               amendatory or supplemental  thereto)  against any and all Damages
               pertaining to the environmental  condition of the Assets (whether
               relating to periods before or after the Effective  Date) with the
               exception of Material  Contamination  identified  in  conformance
               with  Section 8.2 and  assumed by Seller  pursuant to Section 8.3
               (b).

               F. NORM: It is expressly  recognized  that the lands and/or water
               bottoms,  along with surface facilities and production  equipment
               located  thereon,  having been used in connection  with oil, gas,
               and  water   production,   treatment,   storage,   and   disposal
               activities, may contain Naturally Occurring Radioactive Materials
               (NORM) as a result of these operations.  Accordingly,  lands, the
               Wells,  and the Personal  Property to be transferred  pursuant to
               this Agreement are to be transferred  with the  restriction  that
               they will be used only in  connection  with oil and gas producing
               activities   associated   with  the  Leases,   and  will  not  be
               subsequently   transferred  for   unrestricted   use  unless  the
               concentrations of NORM associated  therewith are below the levels
               specified as allowable for unrestricted  transfer as set forth in
               any and all applicable laws, orders,  rules or regulations of any
               governmental agency or court having  jurisdiction.  Additionally,
               Buyer agrees to comply with all provisions of such laws,  orders,
               rules or regulations applicable to said lands, the Wells, and the
               Personal Property. Buyer further agrees to include the provisions
               of  this  clause  in any  subsequent  sale or  assignment  of any
               interest in the leases therein  transferred.  As specified  under
               Section 8.1 above,  Seller shall furnish Buyer with copies of all
               NORM surveys  which have been prepared for the Assets to be sold,
               as same are required under Rule 69 of the Mississippi Oil and Gas
               Board.

       VIII. ADDITIONAL COVENANTS

               A. Operations Prior to Closing.  After the date of this Agreement
               and prior to the Closing,  Seller, in its sole discretion,  shall
               use and maintain the Assets in  substantially  the same manner in
               which they have been used and maintained prior to this Agreement.
               Unless Seller and Buyer otherwise agree,  Seller shall only enter
               into  agreements or  transactions in relation to the Assets which
               (i)  individually  involve a fair market value of less than Fifty
               Thousand United States dollars ($50,000.00), and (ii) are entered
               into in the  ordinary  course of  business  consistent  with past
               practices.  Seller  shall not be obligated  for any  expenditures
               between the execution of this  Agreement or the  Effective  Date,
               whichever  is the earlier and the  Closing.  In the event that an
               expenditure  for purposes  other than  day-to-day  operations  is
               proposed or  contemplated,  Seller shall submit such  proposal to
               Buyer  for  concurrence.  Buyer  will  assume  the  risk  of  any
               consequences  which  arise  as a result  of  Buyer's  failure  or
               refusal to approve and pay such expenditure.  Additionally, after
               the signing of this Agreement and prior to Closing,  Seller shall
               have the right to make any changes, repairs or modifications,  or
               incur any  expenditures  necessary  relative  to the  premises to
               prevent or react to an emergency or environmental  incident. With
               regard to the preceding sentence,  Seller shall attempt to secure
               
                                       24
<PAGE>


               Buyer's consent prior to any such expenditure or action, however,
               Seller shall have the right to effect such  expenditure or action
               with or  without  such  approval,  acting  as would  any  prudent
               operator  under  similar  circumstances.  Unless Buyer and Seller
               otherwise  agree,  Seller shall not  materially  alter the Assets
               (other than the use of supplies  and  consumables)  or remove any
               improvements,  equipment  or property  which  comprise the Assets
               (other than the use of supplies and  consumables).  If because of
               legally  binding  agreements  which  existed prior to the date of
               this Agreement,  Seller,  after the date of this  Agreement,  but
               prior to  Closing,  acquires  assets  related  to the  Assets  or
               otherwise  improves  the  Assets,  the  Purchase  Price  shall be
               increased by an amount equal to the  consideration  to be paid by
               Seller for such acquisition or improvement of the Assets, and the
               acquired  asset or improvement  shall be  transferred  hereunder.
               Seller  shall  promptly  notify  Buyer  of  any  material  matter
               affecting  the Assets  known to Seller which arises from the date
               of this Agreement to the date of Closing.

               B.  Preferential  Rights and Consents to Assign.  The transfer by
               Seller of the Assets,  or any portion thereof,  may be subject to
               the  approval  of  lessors  or   governmental   agencies   having
               jurisdiction,  or other forms of consent, rights of first refusal
               or preferential rights of purchase in favor of third parties. The
               process of  obtaining  such  approvals  and consents may continue
               after Closing.  Seller and Buyer shall cooperate with one another
               to attempt to obtain the necessary non-governmental approvals and
               consents  to assign and  request  releases of the rights of first
               refusal/preferential  rights of purchase.  If consents are denied
               or third parties  exercise a right of first  refusal/preferential
               right of purchase and the portion of the Assets  subject  thereto
               produced in the first six months of 1997 is in excess of one-half
               of the total production of all the subject Assets during such six
               month  period,  then either  Buyer or Seller may  terminate  this
               Agreement and the Deposit, interest thereon, shall be refunded to
               Buyer.  If  neither  Buyer nor  Seller  elect to  terminate  this
               Agreement,  or if Assets  having a value of less than one-half of
               the Purchase  Price are  affected,  the affected  Assets shall be
               deleted from this Agreement and the Purchase Price decreased with
               the  remaining  Assets  to be sold  hereunder.  If the  Asset  is
               deleted  as the  result  of the  exercise  of a  right  of  first
               refusal/preferential  right of purchase, the Purchase Price shall
               be decreased by the allocation  attributable to the deleted Asset
               as specified in Buyer's bid letter dated November 12,1997. If the
               Asset is deleted as a result of the denial of consent  from third
               parties,  the  Purchase  Price shall be  decreased  in the manner
               provided for the deletion of an Asset with defect as described in
               Section  7  hereof,  and  the  remaining  Assets  shall  be  sold
               hereunder.

                                       25
<PAGE>
                   

            

     IX. CLOSING, TERMINATION AND FINAL ADJUSTMENTS

               A. Conditions  Precedent.  Each party's  obligation to consummate
               the transactions contemplated by this Agreement is subject to the
               satisfaction  or  waiver  by the  other  party  of the  following
               conditions:

                    1. Each party shall have  performed  and  complied  with all
                    terms of this Agreement required to be performed or complied
                    with by it at or prior to Closing.

                    2. No action or  proceeding  by or before  any  governmental
                    authority  shall have been instituted or threatened (and not
                    subsequently  dismissed,  settled or  otherwise  terminated)
                    which  might  restrain,  prohibit or  invalidate  any of the
                    transactions  contemplated by this Agreement,  other than an
                    action or proceeding  instituted or threatened by a party or
                    any of its affiliates.

                    3. The representations and warranties contained in Section 6
                    shall be true and  correct in all  material  respects on the
                    Closing Date as though made on and as of the Closing Date.

               B. Closing.

                    1. The Closing of the transactions  contemplated  herein and
                    the transfer of the Assets shall occur on or before December
                    29,  1997,  at Chevron's  office,  1301  McKinney,  Houston,
                    Texas, at 10:00 a.m.,  local time, or such other date, time,
                    and place as Seller  and  Buyer  may agree in  writing  (the
                    "Closing").

                    2. At Closing, the following shall occur:

                         a) Buyer and Seller shall  execute and  acknowledge  an
                         Assignment in substantially the form of Exhibit "B", in
                         form and  substance  sufficient  to convey title to the
                         Assets in accordance with the terms of this Agreement;

                         b) Buyer and Seller shall execute and  acknowledge  any
                         such other  instruments as are reasonably  necessary to
                         effectuate  the  conveyance  of the  Assets  to  Buyer,
                         including without limitation,  separate  assignments of
                         the Assets on officially  approved  forms in sufficient
                         counterparts  to  satisfy   applicable   statutory  and
                         regulatory requirements for the transfer of the Assets;

                                       26
<PAGE>
                       
                       

                         c) To the extent  permitted by law or contract,  Seller
                         shall  execute  and  deliver at Closing  the  requisite
                         number of  Designation  of Operator forms and any other
                         necessary forms as may be required by any  governmental
                         agency having jurisdiction.

                    3.  At  the  Closing,  upon  and  against  delivery  of  the
                    documents  and  materials  described in this  Section  10.2,
                    Buyer  shall pay to Seller the  Adjusted  Purchase  Price as
                    provided  in  Section  2.1 and shall  deliver  to Seller the
                    Guaranty as provided for in Section 4.1 hereof.

               C. Termination.  This Agreement and the transactions contemplated
               hereby may be terminated in the following instances:

                    1. By Buyer or Seller in accordance with Section 7.6;

                    2. By Buyer or Seller in accordance with Section 8.3;

                    3. By Buyer or Seller if any  condition set forth in Section
                    10.1 has not been satisfied or waived by Closing;

                    4. By mutual written agreement of Buyer and Seller; and

                    5. If Buyer, through no fault of Seller,  fails, refuses, or
                    is unable for any reason not permitted by this  Agreement to
                    close the sale pursuant  hereto,  Seller may, at its option,
                    assert  its  right  of  specific  performance,  declare  the
                    Deposit  forfeited  and  retain  same,  or pursue  any other
                    rights or remedies to which it may be entitled, at law or in
                    equity.

                    6. If Seller,  through no fault of Buyer, fails, refuses, or
                    is unable for any reason not permitted by this  Agreement to
                    close the sale  pursuant  hereto,  Buyer may, at its option,
                    assert its right of specific performance,  have the Deposit,
                    or pursue any other  rights or  remedies  to which it may be
                    entitled, at law or in equity.

               D. Final Adjustments.  Within one hundred eighty (180) days after
               the date of Closing, Seller shall prepare a final accounting (the
               "Final  Accounting")  for the  adjustments  to the Purchase Price
               provided for in Section 2.4 and any amounts  arising  pursuant to
               Section  11.2 (b).  Seller  shall  submit  the  Final  Accounting
               statement  to Buyer,  along  with  copies of third  party  vendor
               invoices or other  evidence  of  expenses  agreed to by Buyer and
               Seller,  and Buyer  shall have thirty (30) days to audit same and
               confirm the accuracy thereof.  Upon agreement by Buyer and Seller
               as to  the  accuracy  of  said  Final  Accounting,  or  upon  the
               expiration  of said  thirty  (30) day  period,  whichever  occurs
               first, Seller or Buyer, whichever the case may be, shall promptly
               pay to the  other  such sum as may be  found  due,  after  making
               adjustments  for any payments made at Closing in accordance  with
               the Closing Statement.

                                       27
<PAGE>
                       
           

               If Buyer  and  Seller  are  unable  to  agree to all  adjustments
               respecting  the Final  Accounting  within  thirty (30) days after
               Buyer's  receipt  of the Final  Accounting  submitted  by Seller,
               adjustments  which are not in dispute shall be made between Buyer
               or Seller at the expiration of such 30-day period,  and as to the
               adjustments  which  remain in  dispute,  Buyer and  Seller  shall
               continue to negotiate in good faith to reach a final agreement as
               to such disputed  adjustments.  Provided,  however,  if Buyer and
               Seller are unable to agree to such final adjustments within sixty
               (60) days after Seller  provides the Final  Accounting  to Buyer,
               the parties shall submit such  disagreement to arbitration  which
               shall be conducted  under the Texas General  Arbitration  Act and
               the rules of the American  Arbitration  Association to the extent
               such rules do not  conflict  with the terms of such Act and terms
               hereof. The costs and expenses of the arbitration shall be shared
               equally  by Seller  and  Buyer.  Within  five (5) days  after the
               decision of the arbitrator,  the Buyer or Seller, as the case may
               be, shall  promptly make a cash payment to the other equal to the
               sum as may be found to be due as the Final Accounting.

               Nothing in this  Section  10.5.  shall  limit any right of either
               party to assert a claim for revenues or  reimbursement  after the
               Final Accounting, and in this regard (i) should any party receive
               revenues  to which the other is  entitled,  such party  shall pay
               over such  revenues to the  appropriate  party  within 30 days of
               receipt  thereof,  and (ii)  should  any  party  pay for costs or
               expenses  for which the other  party is  responsible,  such party
               shall  reimburse  the other party  within 30 days of the date the
               responsible   party  receives  an  invoice  for  such  costs  and
               expenses.

       X. MISCELLANEOUS
            
               A. Oil, Gas and End Product Imbalances. Prorationing of accounts,
               as described in Section 5.1, is not applicable to an imbalance in
               Seller's production account, whether or not a gas or oil delivery
               balancing agreement is in effect. Regardless of whether Seller is
               overproduced  or  underproduced  as to its  share of  total  oil,
               condensate,   gas  or  end  product  production,   any  balancing
               obligation  or credit  arising from such over or  underproduction
               with third parties or under a pipeline  imbalance  prior to or as
               of the  Effective  Date shall  transfer to Buyer on the Effective
               Date,  and Seller shall have no further  liability  therefore nor
               benefit  therefrom  (whichever  the  case  may  be) and as of the
               Effective Date,  Buyer assumes any such obligation or credit.  If
               Seller  is a  party  to a gas  balancing  agreement(s)  or  other
               reconciliation  obligations pursuant to any commingling authority
               covering  all or a portion of the Assets,  Buyer shall assume all
               rights and duties of Seller pursuant thereto. If all or a portion
               of the Assets are not  covered by a gas  balancing  agreement  or
               other  reconciliation  obligations  pursuant  to any  commingling
               authority,   Buyer  shall  fulfill  its  obligations  under  this
               provision in  accordance  with  applicable  law.  Buyer agrees to
               indemnify,  defend and hold Seller  harmless  against any and all
               losses,   claims,  suits  and  liabilities  arising  directly  or
               indirectly out of Buyer's failure to fulfill its obligation under
               this provision.

                                       28
<PAGE>
                        
          

               B. Insurance. With regard to any Seller operated properties:

                    a) Seller and Buyer acknowledge that insurance  coverage for
                    the Assets and the  operations in which the Assets have been
                    used has been provided,  in part,  under insurance  programs
                    arranged and  maintained by Chevron  Corporation  for itself
                    and its  subsidiaries  and  affiliates  (such  policies  are
                    herein called "Chevron Policies").

                    b) Seller and Buyer agree that, as of the Closing Date,  all
                    of the Chevron  Policies  shall cease to apply to the Assets
                    and the  operations  in which the  Assets  are used and that
                    Buyer shall make no claims under the Chevron  Policies  with
                    respect to any matter whatsoever,  whether arising before or
                    after the Closing Date.

                    c) In the event  that any claim is  hereafter  made under or
                    with  respect to any of the  Chevron  Policies by or through
                    Buyer or any person  subrogated  to its rights,  Buyer shall
                    indemnify and defend Seller and its  affiliates  against and
                    shall hold them  harmless  from such claim and all costs and
                    expenses  (including  without  limitation  attorneys'  fees)
                    related thereto.

               C. Force Majeure.  In the event any physical asset(s),  including
               fixtures and improvements,  valued at less than twenty-five (25%)
               percent of the Purchase Price and to be sold hereunder is damaged
               by fire or other calamity before  Closing,  Seller may repair the
               damage  at its cost or, at its sole  option,  either  reduce  the
               Purchase  Price by the cost of the damage or withdraw the damaged
               Asset  from  the  sale  and  reduce  the  Purchase  Price  by the
               undamaged value thereof.  Should Buyer and Seller not agree as to
               the amount of such price  reduction or if the amount of the price
               reduction, as mutually agreed, exceeds twenty-five (25%) percent,
               either Buyer or Seller may  terminate  this  Agreement,  in which
               event the Deposit shall be refunded to Buyer.

               D. Books and Records. With the exception of books of account, tax
               returns  and  correspondence  relating  thereto,   technical  and
               interpretive  data  excluded  from this sale,  any  documents  of
               overall significance to Seller's business and all of the Excluded
               Assets,  Seller  shall  deliver  to Buyer at  Closing or within a
               reasonable time thereafter copies of the Records.

                                       29
                        
<PAGE>
           

               E. Publicity. Seller and Buyer shall consult with each other with
               regard  to  all  press   releases  or  other  public  or  private
               announcements  made concerning this Agreement or the transactions
               contemplated  hereby, and except as may be required by applicable
               laws or the applicable  rules and regulations of any governmental
               agency or stock  exchange,  neither  Buyer nor Seller shall issue
               any such  press  release  or other  publicity  without  the prior
               written   consent  of  the  other  party,   which  shall  not  be
               unreasonably withheld.

               F.  Assignment.  Prior to Closing Buyer may not assign any rights
               acquired  hereunder  or  delegate  any duties  assumed  hereunder
               without  the prior  written  consent of Seller or its  respective
               successors  and  assigns.  After  Closing,  Buyer  may not  sell,
               transfer,  assign or sublease  delegate  any rights or  interests
               acquired  under this Agreement and the Assignment or delegate any
               duties assumed thereunder  without any such grantee,  transferee,
               assignee,  sublessee  or delegee  having  agreed in writing to be
               bound  by all of the  terms  and  provisions  contained  in  this
               Agreement and the Assignment,  and any such grantee,  transferee,
               assignee,  sublessee  or  delegee  shall  assume  all  duties and
               obligations set forth herein and therein or arising  herefrom and
               therefrom;  and  any  such  transfer,  assignment,   sublease  or
               delegation shall so provide.  Notwithstanding  anything herein to
               the contrary,  Buyer shall remain  responsible  to Seller for all
               obligations  and  liabilities  under this Agreement and under the
               Assignment.  Buyer  further  agrees to give Seller  notice before
               Buyer  transfers,  sells,  assigns,  subleases or  delegates  any
               rights or interests acquired under this Agreement,  and to attach
               a copy of this  Agreement to any  agreement or other  document by
               which the Buyer effects the transfer, sale, assignment,  sublease
               or  delegation  of any rights or  interests  acquired  under this
               Agreement.

               G.  Entire  Agreement.  This  Agreement  constitutes  the  entire
               agreement   between   Seller  and  Buyer  with   respect  to  the
               transactions  contemplated  herein, and supersedes all prior oral
               or   written   agreements,   commitments,    understandings,   or
               information  otherwise  furnished by Seller to Buyer with respect
               to such matters.  No amendment shall be binding unless in writing
               and signed by both parties.  Headings used in this  Agreement are
               only for convenience of reference and shall not be used to define
               the meaning of any  provision.  This Agreement is for the benefit
               of  Seller  and  Buyer  only  and not for the  benefit  of  third
               parties.

               H. Notices.  All notices and consents to be given hereunder shall
               be in  writing  and shall be  deemed  to have been duly  given if
               delivered either by personal delivery, telex, telecopy or similar
               facsimile means, by certified or registered mail,  return receipt
               requested,  or by courier or delivery  service,  addressed to the
               parties hereto at the following addresses:


                                       30
<PAGE>
                     


                  If to Seller:                       If to Buyer:

                  Chevron U.S.A. Inc.                 Denbury Management, Inc.
                  1301 McKinney                       17304 Preston Road
                  Suite 1622                          Suite 200
                  Houston, TX 77010                   Dallas, Texas 75252
                  Attn: K.O. Rice                     Attn: Lynda F. Perrard
                  Manager, Property Enhancement       V.P. Land

                  Fax No.:                            Fax No.:
                  713-754-5088                        972-380-6967

               or at such other  address  and number as either  party shall have
               previously  designated by written notice given to the other party
               in the manner  herein  above set forth.  Notices  shall be deemed
               given when received,  if sent by facsimile means (confirmation of
               such receipt by  confirmed  facsimile  transmission  being deemed
               receipt of communications);  and when delivered and receipted for
               (or  upon  the  date of  attempted  delivery  where  delivery  is
               refused), if hand-delivered,  sent by express courier or delivery
               service,  or sent by certified or registered mail, return receipt
               requested.

               I. Governing Law. This Agreement shall be governed by the laws of
               the State of Texas  without  giving  effect to any  principles of
               conflicts of law. The validity of the  conveyances  affecting the
               title to real  property  shall be  governed by and  construed  in
               accordance  with  the  laws of the  jurisdiction  in  which  such
               property  is   situated.   The   provisions   contained  in  such
               conveyances  and the  remedies  available  because of a breach of
               such provisions  shall be governed by and construed in accordance
               with the laws of the State of Texas without  giving effect to the
               principles of conflict of laws.

               J.  Confidentiality.  Buyer  acknowledges  that  all  information
               furnished or disclosed  pursuant hereto must remain  confidential
               prior to Closing. Buyer may disclose such information only to its
               subsidiaries  or  affiliates,   agents,   advisors,   counsel  or
               representatives (herein "Representatives") who have agreed, prior
               to being  given  access to such  information,  to be bound by the
               terms  of  this  Agreement.  In the  event  that  Closing  of the
               transactions  contemplated  by this  Agreement does not occur for
               any reason,  Buyer and its Representatives  shall promptly return
               to Seller any and all  materials and  information,  including any
               notes,  summaries,  compilations,   analyses  or  other  material
               derived from the  inspection  or  evaluation of such material and
               information,  without  retaining copies thereof.  Notwithstanding
               the provisions of Section 11.8, nothing in this Section 11.11 and
               this  Agreement  shall  have the  effect,  prior to  Closing,  of
               terminating,    modifying    or    superseding    that    certain
               Confidentiality  Agreement  dated October 7, 1997,  between Buyer
               and Seller.


                                       31
<PAGE>

               K.  Conflict of Interest.  Conflicts of interest  related to this
               Agreement are strictly prohibited.  Except as otherwise expressly
               provided  herein,  neither  Buyer nor any  director,  employee or
               agent of  Buyer  shall  give to or  receive  from  any  director,
               employee  or agent of  Seller  any gift,  entertainment  or other
               favor of significant  value,  or any  commission,  fee or rebate.
               Likewise,  neither Buyer nor any  director,  employee or agent of
               Buyer  shall  enter  into  any  business  relationship  with  any
               director,  employee  or agent of Seller (or of any  affiliate  of
               Seller),  unless  such  person  is  acting  for and on  behalf of
               Seller,  without  prior written  notification  thereof to Seller.
               Each party shall promptly notify the other party of any violation
               of this Section 11.12, and any consideration  received by a party
               as a result of such  violation  shall be paid over or credited to
               the other party. Each party, or its designated representative(s),
               may audit  any and all  records  of the other  party for the sole
               purpose of  determining  whether there has been  compliance  with
               this Section 11.12.

               L.  Default.  Seller  shall notify Buyer in the event that Seller
               becomes  aware that Buyer or Buyer's  successors  or assigns have
               failed  to  satisfy  one or more  obligations  assumed  by  Buyer
               pursuant to the terms of this Agreement, the Assignments,  and/or
               any amendments thereto (any such failures hereinafter referred to
               as  "Defaults").  Buyer shall correct or redress or respond to or
               begin to correct or  redress or respond to such  Defaults  within
               thirty  (30) days after  receipt of such  written  notice or such
               lesser  or  greater  time  as may be  dictated  by any  emergency
               situation or as required by applicable  agreements or as required
               by any  law,  order,  rule  or  regulation  of  any  governmental
               authority.

               If (i) within  such time as defined  hereinabove,  Buyer does not
               correct  or  redress or respond to or begin to correct or redress
               or respond to such Defaults, or (ii) after beginning such efforts
               Buyer  does  not  correct  or  redress  such  Defaults  within  a
               reasonable  amount of time and  within the time  required  by any
               applicable  agreements  or  required by any law,  order,  rule or
               regulation  of any  governmental  authority,  or (iii)  Seller is
               unable to locate Buyer in order to notify Buyer after  reasonable
               efforts to do so,  Seller,  at its  option,  may  endeavor to and
               shall  be  authorized  to  plug  and  abandon   well(s),   remove
               facility(ies)  or  equipment or restore the surface  area(s),  or
               otherwise  correct  such  defaults,  or  cause  such  to be  done
               provided that Seller shall  exercise  reasonable  discretion  and
               endeavor  to  accomplish  only  that  necessary  to  remedy  such
               Defaults,  all at the entire cost, risk,  expense of Buyer except
               that Buyer shall not be responsible for costs and expenses of any
               such  work done by Seller  or  Seller's  affiliates  in excess of
               amounts typically charged by unaffiliated  third parties for like
               or similar  services in the area,  and  furthermore,  Buyer shall
               only be liable for costs  attributable to Buyer's  interest to be
               acquired pursuant to the terms of this Agreement. Compliance with
               the Notice  Requirements  under  Section  11.9 of this  Agreement
               shall be considered as sufficient notice under this Section.

                                       32
<PAGE>

               Within a  reasonable  period of time  after any such  efforts  by
               Seller to correct or redress such Defaults,  Seller shall furnish
               Buyer  at its last  known  address  with  detailed  invoices  and
               supporting  documentation  for expenses incurred by Seller in the
               efforts to correct such Defaults,  including  appropriate charges
               for  overhead,   salaries,   legal  costs,  permits,   penalties,
               interest,  or other losses or expenses  incurred for or by Seller
               or Seller's employees for the purpose of correcting or redressing
               such Defaults. In the event that Buyer does not pay Seller within
               fifteen  (15)  days  after  the  mailing  of  said  invoices  and
               supporting  documentation,  Seller shall be entitled to reimburse
               itself for such invoices by recovering such sums under the Escrow
               Agreement. Any such recovery by Seller under the Escrow Agreement
               shall satisfy only those  liabilities  and  obligations  of Buyer
               with  respect to the  particular  Default  and only to the extent
               that Seller has been  reimbursed  therefor by recovery  under the
               Escrow Agreement.

               Seller's  right to  proceed  in the  manner  above  described  to
               correct or redress Defaults of Buyer or its successors or assigns
               is not  intended to be nor shall it limit or be  exclusive of any
               other right or remedy, whether personal or "in rem", available to
               Seller  under  this  Agreement,   the  Assignments,   and/or  any
               amendments  thereto,  or otherwise by law, all of which  remedies
               are expressly and fully ratified, granted and reserved to Seller.
               Seller  shall in no event be obligated to satisfy any Defaults by
               Buyer or its successors or assigns.

               The recovery by Seller of amounts  under the Escrow  Agreement is
               not  intended  and shall not be deemed to be a waiver by Buyer of
               any  claim,  protest,  dispute or cause of action  conceding  the
               amount or nature of the activities  performed by Seller  pursuant
               to this  Section  11.13 or the  necessity  thereof or the amounts
               expended  therefor.  Notwithstanding  any  recovery  by Seller of
               amounts under the Escrow Agreement, Buyer shall have the right to
               pursue in any manner all rights and  remedies  available to it in
               connection  with any such  claim,  protest,  dispute  or cause of
               action.

               M. Survival.  The terms and  provisions of this  Agreement  shall
               survive the Closing.

               N.  Brokers'  Fees.  Seller and Buyer  warrant  that  neither has
               incurred any liability,  contingent or otherwise, for brokers' or
               finders'  fees  relating  to this  agreement  for which the other
               shall have responsibility. All fees, costs, and expenses incurred
               by Seller or Buyer  relating to this  agreement  shall be paid by
               the party  incurring  same. All recording and transfer fees shall
               be paid by Buyer.

               O. Commissions or Fees. Each of Buyer and Seller,  for itself and
               for its respective  directors,  partners,  employers,  and agents
               warrants,  covenants and represents to the other that,  except as
               otherwise  expressly  provided in this Agreement,  neither it nor
               any of its directors,  employees, partners or agents has given to
               or received from the other party, for any such party's directors,
               partners,  employees or agents any commission,  fee, rebate, gift
               or other thing or service in connection with this Agreement,  and
               Buyer and Seller each agree that its books and  records  shall be
               subject to  reasonable  audit by the other as may be  required to
               substantiate compliance with this provision.
                                     
                                       33
<PAGE>

               P.  Further  Cooperation.  After the  Closing,  each party  shall
               execute,  acknowledge,  and deliver all  documents,  and take all
               such acts which from time to time may be reasonably  requested by
               the other party in order to carry out the  purposes and intent of
               this Agreement.

               Q.  Counterparts.  This  Agreement may be executed in one or more
               counterparts  with the same  effect as if all  signatures  of the
               parties hereto were on the same document,  but in such event each
               counterpart  shall  constitute  an  original,  and  all  of  such
               counterparts shall constitute one Agreement;  but in making proof
               of this  Agreement,  it shall  not be  necessary  to  produce  or
               account for more than one such counterpart signed by each party.

               R.  Exhibits.  All of the Exhibits  referred to in this Agreement
               are hereby  incorporated  into this  Agreement by  reference  and
               constitute a part of this Agreement. Each party to this Agreement
               and its counsel has received a complete set of Exhibits  prior to
               and as a part of the execution of this Agreement.

               S.  Severability.  If any term or provision of this  Agreement is
               invalid,  illegal or incapable  of being  enforced by any rule of
               law, all other  conditions and provisions of the Agreement  shall
               nevertheless  remain  in full  force  and  effect  so long as the
               economic  or  legal  substance  of the  transaction  contemplated
               hereby is not affected in any adverse manner to the other party.

               T.  Expenses  and  Recording.  Except as  otherwise  specifically
               provided,  all fees,  costs  and  expenses  incurred  by Buyer or
               Seller in  negotiating  this  Agreement  or in  consummating  the
               transactions  contemplated by this Agreement shall be paid by the
               party incurring the same,  including,  without limitation,  legal
               and  accounting  fees,   costs  and  expenses.   Buyer  shall  be
               responsible  for the filing  and  recording  of the  assignments,
               conveyances or other instruments  required to convey title to the
               Assets to Buyer and Buyer  shall bear all  required  documentary,
               filing and  recording  fees and expenses  incurred in  connection
               therewith.

               U.  Nominations  and  Accounting  Procedures.  The parties hereto
               agree that starting with February 1, 1998 production,  Buyer will
               begin  nominating,   marketing,  and  performing  the  accounting
               responsibilities and procedures,  including payment of royalties,
               on the Assets.

               V. Removal of Signs and Markers.  Buyer shall, at its own expense
               and in a timely  manner  after  the  Effective  Date or  Closing,
               whichever is later,  remove all lease and well signs and placards
               which indicate  Seller's prior  ownership in the Assets and erect
               or install  signs and  placards  as may be  required  by state or
               other   governmental   agencies   indicating  the  Buyer  as  the
               owner-operator of the Assets.

                                       34
<PAGE>


               W.     CONSPICOUSNESS/EXPRESS     NEGLIGENCE.     THE    DEFENSE,
               INDEMNIFICATION AND HOLD HARMLESS PROVISIONS PROVIDED FOR IN THIS
               AGREEMENT SHALL BE APPLICABLE WHETHER OR NOT THE DAMAGES, LOSSES,
               INJURIES, LIABILITIES, COSTS OR EXPENSES IN QUESTION AROSE SOLELY
               OR IN PART FROM THE ACTIVE,, PASSIVE OR CONCURRENT NEGLIGENCE, OR
               OTHER  FAULT  OF  ANY   INDEMNIFIED   PARTY.   BUYER  AND  SELLER
               ACKNOWLEDGE  THAT  THIS  STATEMENT   COMPLIES  WITH  THE  EXPRESS
               NEGLIGENCE RULE AND IS CONSPICUOUS.

               X. Gas Contract(s).  All or a portion of the natural gas produced
               from the Assets covered  hereby has heretofore  been committed to
               the  following  gas  contract(s):  Natural Gas Purchase  Contract
               No.1389,  dated March 1, 1997 and month to month  thereafter,  by
               and between Pan Energy Field Services, Inc., as Buyer and Chevron
               U.S.A. Production Company, as Seller.

               11.25  Disclosure of Royalty  Valuation  Claims,  Demands  and/or
               Lawsuits.   Seller  hereby  notifies  Buyer,   and  Buyer  hereby
               acknowledges,  that the leases to be assigned pursuant hereto may
               be subject to the following lawsuit(s):  (1) that certain lawsuit
               styled  Stanley,  et al v. Gulf,  et al, a  purported  nationwide
               class action filed in U.S.  District Court,  Southern District of
               Mississippi  alleging federal antitrust  violations and asserting
               other non-federal claims arising from the alleged underpayment of
               royalty  based on Seller's  use of the posted  price of crude oil
               allegedly  set  below  market  value  (also  includes   discovery
               requests  for  natural  gas and  processed  products);  (2)  that
               certain  lawsuit styled McMahon  Foundation et al v. Amerada Hess
               Corporation,  et al, a purported nationwide class action filed in
               U.S.  District  Court,   Southern  District  of  Texas,  alleging
               defendants violated federal antitrust statutes through payment of
               royalties  based on posted  prices  allegedly  set  below  market
               value; (3) that certain lawsuit styled Randolph  Energy,  Inc. v.
               Amerada Hess  Corporation,  et al, a purported  nationwide  class
               action  filed  in U.S.  District  Court ,  Southern  District  of
               Mississippi,   alleging  defendants  violated  federal  antitrust
               statutes  through payments to royalty and working interest owners
               based on posted prices allegedly set below market value, alleging
               violations   of   contracts,   certain   covenants  and  specific
               Mississippi  statutes;and  (4) that certain  lawsuit styled R..M.
               Lovelace, et al. v. Amerada Hess Corporation,  et al, a purported
               nationwide  class  action  filed in  Circuit  Court  of  Escambia
               County,  Alabama,  alleging  defendants  violated state antitrust
               statutes of Alabama and other states through  payments to royalty
               and working  interest owners based on posted prices allegedly set
               below market value. The leases to be assigned pursuant hereto may
               also be subject to claims,  demands and/or  lawsuits which may be
               substantively similar to the above named lawsuit(s).

                                       35
<PAGE>
                       

               Notwithstanding  anything to the contrary  contained herein,  for
               events occurring prior to the effective date hereof,  Buyer shall
               have no liability for any damages  resulting from the above named
               lawsuit(s) or any claims,  demands  and/or  lawsuits which may be
               substantively  similar  to  the  above  named  lawsuit(s),   such
               liability shall be retained by Seller, and Seller shall indemnify
               Buyer  for any  costs  incurred  by it in  conjunction  with said
               suits.

               Seller  further   hereby   notifies   Buyer,   and  Buyer  hereby
               acknowledges,  that a civil action was filed on October 30, 1997,
               styled L.H. Martin v. Chevron U.S.A. Inc. in the Circuit Court of
               the First Judicial District of Jasper County, Mississippi,  being
               Civil  Action  No.  97-0065.   Notwithstanding  anything  to  the
               contrary  contained  herein,  for events  occurring  prior to the
               Effective  Date,  Buyer shall have no  liability  for any damages
               resulting from the named lawsuit and Seller shall indemnify Buyer
               for any costs incurred by it in conjunction with said suit.

               11.26  Convenant  Running  With The  Land.  All  obligations  and
               indemnities  in this  Agreement  including,  but not  limited to,
               Sections 3.3, 4, 8.4, 8.5 and 8.6 are convenants running with the
               real property to be sold pursuant to this Agreement.

               11.27 COVENANTS,  ASSIGNMENTS AND CONTINUING  OBLIGATIONS.  It is
               the  intent and  effect of this  Asset  Sale  Agreement  that the
               transfer of any Assets by Buyer or any future  assignment made by
               Buyer shall not in any way diminish,  compromise,  extinguish, or
               effect a release of Seller's  rights  against  Buyer,  or Buyer's
               obligations  to Seller.  It is also the intent and effect of this
               Asset Sale  Agreement that the transfer of any Assets by Buyer or
               any future  assignment made by Buyer shall create rights in favor
               of  Seller  under  this  Asset  Sale   Agreement  and  under  any
               subsequent  agreements or  assignments  pertaining to the Assets,
               and  that  the  Seller  is a  third  party  beneficiary  of  such
               subsequent  agreements or assignments,  so that the party to whom
               Buyer  transfers or assigns any Assets shall likewise be bound to
               Seller for  performance  of Buyer's  obligations  to Seller under
               this Asset Sale Agreement. Buyer specifically agrees and warrants
               that in the event of any  future  conveyance  of the  Assets  (in
               whole or in part) by Buyer,  Buyer shall  require that as part of
               the  conveyance  the party to whom the Assets are conveyed  shall
               agree to be bound by and subject to all of Buyer's obligations to
               Seller and shall fulfill those obligations. Buyer further agrees,
               understands  and  warrants  that  in  the  event  of  any  future
               conveyance  of the Assets  (in whole or in part) by Buyer,  Buyer
               shall remain bound and subject to all of Buyer's  obligations  to
               Seller  and  shall  remain   responsible  for  fulfilling   those
               obligations  even though  Buyer has  conveyed  the Assets.  Buyer
               further   agrees,   understands  and  warrants  that  any  future
               assignment  of  any  Assets  must  also  be  accompanied  by  the
               assignees'  acceptance  of the  obligations  that  Buyer  owes to
               Seller. The obligations and  responsibilities of Buyer to Seller,
               and of Buyer's  assignees  to Seller,  shall be joint and several
               and shall run with the  Assets  assigned  so that any  subsequent
               assignee  also accepts the same  obligations  to Seller,  without
               Buyer or any assignees being released of any of their obligations
               to Seller. Such obligations shall include, but not be limited to,
               those  involving  abandonment  obligations,   covenants,   terms,
               conditions, indemnities, liabilities, and assumed risks.

                                       36
                        
<PAGE>
          

               11.28 Notwithstanding anything else to the contrary, Seller shall
               remain  liable for  personal  injury or wrongful  death claims or
               lawsuits  arising out of  operation  or  ownership  of the Assets
               prior to the Effective Date for which claim is made or suit filed
               within two (2) years of the Effective Date.


EXECUTED as of the date first above written.



      SELLER:                                   BUYER:
CHEVRON U.S.A. INC.                             DENBURY MANAGEMENT, INC.


By:                                             By:
                                                ____________________________
Name: ________________________________          Name: Lynda F. Perrard
      Assistant Secretary                       Title: Vice President-Land



                                       37








                                    Item 7(c)
                                  Exhibit (99)

                               Reserve Report from
                      Netherland, Sewell & Associates, Inc.




<PAGE>

                                December 8, 1997


Mr. William E. Gross
Denbury Management, Inc.
17304 Preston Road, Suite 200
Dallas, Texas  75252

Dear Mr. Gross:

     In accordance with your request, we have estimated the proved reserves,  as
of January 1, 1998, to the combined interests of Denbury Management,  Inc. (DMI)
and Chevron U.S.A. Inc. (CUSA) in certain oil and gas properties  located in the
East Heidelberg and West Heidelberg Fields,  Jasper County,  Mississippi.  These
properties include those acquired from Lake Ronel Oil Company, Lawco Exploration
Inc., and Deepwell Co. during 1997 and those currently being acquired from CUSA.
This report has been prepared  using  constant  prices and costs as set forth in
this letter.  Economics  have been  considered  only to the extent  necessary to
establish the profitability of certain  operations and to determine the economic
limits of the wells.

     We estimate the net  reserves to the combined  interests of DMI and CUSA in
the East Heidelberg and West Heidelberg Fields, as of January 1, 1998, to be:

<TABLE>
<CAPTION>
                              Net Reserves
                      ----------------------------

                          Oil             Gas
    Category           (Barrels)         (MCF)
- -----------------     -----------     ------------
<S>                   <C>              <C>  
Proved Developed
  Producing            9,824,707       1,057,655
  Non-Producing        4,246,437       1,496,865
Proved                16,487,090               0
Undeveloped
                      -----------     ------------

   Total Proved       30,558,234       2,554,520
</TABLE>

     The oil reserves  shown include crude oil and  condensate.  Oil volumes are
expressed in barrels  which are  equivalent  to 42 United  States  gallons.  Gas
volumes are expressed in thousands of standard  cubic feet (MCF) at the contract
temperature and pressure bases.

     The  estimated  reserves  shown in this  report  are for  proved  developed
producing, proved developed non-producing, and proved undeveloped reserves. This
report does not include any  probable or possible  reserves  which may exist for
these properties.

     For the purposes of this report,  a field  inspection of the properties has
not been  performed nor has the  mechanical  operation or condition of the wells
and their related  facilities been examined.  We have not investigated  possible
environmental liability related to the properties.

     Economic parameters have been considered,  for the purposes of this report,
only  to  the  extent  necessary  to  establish  the  profitability  of  certain
operations and to determine the economic limits of the wells. As requested,  oil
prices used in this report are based on a NYMEX Cushing West Texas  Intermediate
price of $19.75 per barrel, adjusted by lease for gravity,  transportation fees,
and regional  posted price  differentials.  The gas price used in this report is
$2.50 per MCF. Oil and gas prices are held constant  throughout  the life of the
properties.

<PAGE>

     Lease and well operating  costs are based on operating  expense  records of
DMI and CUSA.  For  non-operated  properties,  these costs  include the per-well
overhead  expenses  allowed under joint  operating  agreements  along with costs
estimated  to be  incurred  at and  below the  district  and  field  levels.  As
requested,  lease and well operating costs for the operated  properties  include
only direct lease and field level costs. Headquarters general and administrative
overhead  expenses of DMI and CUSA are not  included.  Lease and well  operating
costs are held constant throughout the life of the properties. Capital costs are
included as required  for  workovers,  new  development  wells,  and  production
equipment.

     We have made no investigation of potential gas volume  imbalances which may
have resulted from  overdelivery or underdelivery to the DMI and CUSA interests.
Therefore,  our  estimates  of  reserves  do not  include  adjustments  for  the
settlement of any such  imbalances;  our  projections  are based on DMI and CUSA
receiving  their  net  revenue  interest  share of  estimated  future  gross gas
production.

     The reserves  included in this report are estimates  only and should not be
construed as exact quantities.  They may or may not be recovered;  if recovered,
the revenues  therefrom and the costs related thereto could be more or less than
the estimated amounts.  The sales rates,  prices received for the reserves,  and
costs incurred in recovering such reserves may vary from assumptions included in
this report due to governmental policies and uncertainties of supply and demand.
Also,  estimates  of  reserves  may  increase  or decrease as a result of future
operations.

     In evaluating the information at our disposal  concerning  this report,  we
have  excluded  from  our  consideration  all  matters  as  to  which  legal  or
accounting,  rather  than  engineering  and  geological,  interpretation  may be
controlling.   As  in  all  aspects  of  oil  and  gas  evaluation,   there  are
uncertainties inherent in the interpretation of engineering and geological data;
therefore,  our  conclusions  necessarily  represent only informed  professional
judgments.

     The titles to the properties have not been examined by Netherland, Sewell &
Associates,  Inc.,  nor has the  actual  degree or type of  interest  owned been
independently  confirmed.  The data used in our  estimates  were  obtained  from
Denbury Management,  Inc., Chevron U.S.A. Inc., and the nonconfidential files of
Netherland,  Sewell &  Associates,  Inc. and were  accepted as accurate.  We are
independent petroleum engineers, geologists, and geophysicists; we do not own an
interest in these properties and are not employed on a contingent  basis.  Basic
geologic and field  performance  data together with our engineering  work sheets
are maintained on file in our office.

                                       Very truly yours,


                                       /s/ Fred Sewell
                                       --------------------
                                          Fred Sewell
                                        
DMA:MMD



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