PURCHASE AND SALE AGREEMENT


                                  BY AND BETWEEN


                      BASS ENTERPRISES PRODUCTION CO., ET AL


                                    AS SELLERS


                                       AND


                           CONTINENTAL RESOURCES, INC.


                                     AS BUYER


                               DATED MARCH 28, 1998





                        TABLE OF CONTENTS                    PAGE

                                                          
 1. Property to be Sold and Purchased . . . . . . . . . . . .  1

 2. Purchase Price. . . . . . . . . . . . . . . . . . . . . .  2

 3. Deposit . . . . . . . . . . . . . . . . . . . . . . . . .  2

 4. Allocation of Base Purchase Price . . . . . . . . . . . .  2

 5. Seller's Representations  . . . . . . . . . . . . . . . .  2

 6. Buyer's Representations . . . . . . . . . . . . . . . . .  3

 7. Covenants of Seller and Buyer Pending Closing . . . . . .  4

 8. Due Diligence Reviews . . . . . . . . . . . . . . . . . .  6

 9. Adverse Environmental Conditions. . . . . . . . . . . . .  8

10. Disposal of Materials, Substances, and Wastes; 
     Compliance with Law  . . . . . . . . . . . . . . . . . . 10

11. Certain Price Adjustments to the Base Purchase Price  . . 11

12. Conditions Precedent to Buyer's Obligations . . . . . . . 12

13. Conditions Precedent to Seller's Obligations  . . . . . . 13

14. The Closing . . . . . . . . . . . . . . . . . . . . . . . 13

15. After Closing . . . . . . . . . . . . . . . . . . . . . . 15

16. Certain Accounting Adjustments to the Purchase Price  . . 16

17. Assumption and Indemnification. . . . . . . . . . . . . . 18

18. Environmental Assessment and Indemnification by Buyer . . 19

19. Disclaimer of Warranties. . . . . . . . . . . . . . . . . 19

20. Buyer's Covenant Not to Sue Seller Group . .  . . . . . . 20

21. Commissions . . . . . . . . . . . . . . . . . . . . . . . 20

22. Casualty Loss . . . . . . . . . . . . . . . . . . . . . . 20

23. Notices . . . . . . . . . . . . . . . . . . . . . . . . . 20

24. Survival of Provisions. . . . . . . . . . . . . . . . . . 20

25. Miscellaneous Matters . . . . . . . . . . . . . . . . . . 21



Exhibit A - Oil and Gas Leases

Exhibit B - Wells

Exhibit C - Assignment and Bill of Sale

Exhibit D - Suits, Actions, or other Legal Proceedings Pending

Exhibit E - Allocation of Values



                         PURCHASE AND SALE AGREEMENT

     This Agreement, dated March 28, 1998, is made by and between the 
signatory parties shown below under "Sellers" whose address is 201 Main 
Street, Fort Worth, Texas 76102 (hereinafter collectively called "Seller") 
and Continental Resources, Inc., whose address is P.O. Box 1032, Enid, 
Oklahoma 73702 (hereinafter called Buyer");

                            W I T N E S S E T H:

     WHEREAS, Buyer desires to purchase the Properties, as defined below, 
from Seller, and Seller desires to sell the same Properties to Buyer, subject 
to the terms and conditions of this Agreement.

     WHEREAS, It is the parties' intent that Buyer assume all responsibility 
and liability as provided herein for all matters relating to the Properties 
to be assigned.

     NOW, THEREFORE, In consideration of the mutual promises made herein and 
the benefits to be derived hereunder, and other good and valuable 
consideration, the sufficiency of which is hereby acknowledged, Seller and 
Buyer agree as follows:

     1.   PROPERTY TO BE SOLD AND PURCHASED.  Seller agrees to sell, and 
Buyer agrees to purchase, for the consideration herein set forth, and subject 
to the terms and provisions herein contained, the following described 
Properties, rights, and interests:

          (a)  All rights, titles, and interests of Seller in and to:  1) the
          oil, gas, and mineral leases described in Exhibit A hereto; and 2) the
          wells described in Exhibit B hereto;

          (b)  All rights, titles, and interests of Seller in and to, or
          otherwise derived from, all presently existing and valid oil, gas, and
          mineral unitization, pooling, and communitization agreements,
          declarations, and orders (including, without limitation, all units
          formed under orders, rules, regulations, or other official acts of any
          federal, state, or other authority having jurisdiction, and voluntary
          unitization agreements, designations, and declarations) relating to
          the properties described in subsection 1.(a) to the extent such
          rights, titles, and interests are attributable to the properties
          described in subsection 1.(a);

          (c)  All rights, titles, and interests of Seller in and to all
          presently existing and valid production sales contracts, operating
          agreements, and other agreements and contracts that relate to any of
          the properties described in subsections 1.a. and 1.b., to the extent
          such rights, titles, and interests are assignable and attributable to
          the properties described in subsections 1.(a) and 1.(b);

          (d)  All rights, titles, and interests of Seller in and to all
          rights-of-way, easements, surface leases, permits, and licenses
          appurtenant to the properties described in subsections 1.(a) and
          1.(b); and

          (e)  All rights, titles, and interests of Seller in and to all
          materials, supplies, machinery, equipment, improvements, and other
          personal property and fixtures (including, but not limited to,
          wellhead equipment, pumping units, flowlines, tanks, buildings,
          injection facilities, saltwater disposal facilities, compression
          facilities, gathering systems, and other equipment) located on the
          properties described in subsections 1.(a) and 1.(b) and used in
          connection with the exploration, development, operation, or
          maintenance thereof.

The properties and interests specified in subsections 1.(a), 1.(b), 1.(c), 
1.(d) and 1.(e) are herein sometimes collectively called the "Properties".  
The defined term "Properties" shall include seismic data, geological or 
geophysical data, including interpretations, environmental studies, or other 
similar data, or any interpretations thereof or other data or records related 
thereto.  Seller shall provide Buyer with such data Seller has in its files, 
excluding any interpretations, engineering 

                                       1


reports and evaluations, Seller financial information and all data which 
Seller considers proprietary or confidential or that Seller cannot provide to 
Buyer without breaching, or risking a breach of, an agreement with a third 
party.

     2.   PURCHASE PRICE.  The unadjusted purchase price for the Properties 
shall be Eighty Six Million Five Hundred Thousand Dollars ($86,500,000.00), 
payable in United States dollars, (herein called the "Base Purchase Price"). 
The Base Purchase Price may be adjusted, as provided in Sections 7.(c), 11. 
and 16. hereof.  The Base Purchase Price, as so adjusted and as otherwise 
adjusted by mutual agreement of the parties herein, shall be called the 
"Purchase Price."

     3.   DEPOSIT.  Upon entering into this Agreement, as evidence of good 
faith, Buyer shall pay to Seller Eight Million Six Hundred Fifty Thousand 
Dollars ($8,650,000.00) hereinafter called the "Deposit".  If Buyer and 
Seller consummate the transaction contemplated hereby in accordance with the 
terms hereof, the Deposit shall be applied to the Base Purchase Price.  If 
Buyer and Seller do not consummate the transaction contemplated hereby 
because of a material default by Seller, in the absence of a default by 
Buyer, Seller shall return the Deposit to Buyer and shall, in addition, pay 
to Buyer the sum of Two Million Five Hundred Thousand Dollars ($2,500,000.00) 
as liquidated damages and not as a penalty.  Except as provided in Section 
12., if Buyer fails or refuses to consummate the transaction contemplated 
hereby, Seller shall retain the Deposit as liquidated damages and not as a 
penalty.  Buyer stipulates that Seller's damages in the event of Buyer's 
wrongful failure to close would be uncertain and that the amount of 
liquidated damages provided herein is reasonable.  Forfeiture of the Deposit 
as liquidated damages as provided herein shall be Seller's sole remedy at law 
or in equity for Buyer's failure to close as provided in this Agreement.  In 
no event shall the Deposit accrue interest.

     4.   ALLOCATION OF BASE PURCHASE PRICE.  Buyer has allocated the Base 
Purchase Price to the Properties by various categories.  These categories and 
the allocations thereto are shown on Exhibit E and have been made in good 
faith by Buyer and may be relied upon by Seller for all purposes of this 
Agreement.

     5.   SELLER'S REPRESENTATIONS.  Each of the individuals and entities 
comprising Seller represent to Buyer that:

          (a)  Each (other than natural persons) is a legal entity duly
          organized and legally existing under the laws of the State of Texas. 
          Each corporation and limited partnership is qualified to do business
          in Wyoming and is in good standing, or will be at Closing.

          (b)  Each has full power to enter into this Agreement and perform its
          obligations hereunder and has taken all necessary action to enter into
          this Agreement and perform its obligations hereunder.

          (c)  Execution and delivery of this Agreement, the consummation of the
          transaction contemplated hereby, and compliance with the terms hereof,
          will not result in any default under any agreement or instrument to
          which Seller, or any individual party thereof, is a party or by which
          the Properties are bound that would be material to this transaction. 
          Execution and delivery of this Agreement will not violate any
          contractual provision, order, writ, injunction, decree, statute, rule,
          or regulation applicable to Seller, or any individual party thereof,
          or to the Properties that would be material to this transaction,
          except the following:

          (i)  Any waivers of preferential rights to purchase that must be
          obtained from third parties;

          (ii)  Compliance with the Hart-Scott-Rodino Antitrust Improvements Act
          of 1976 (the "HSR Act"); and,

                                       2


          (iii)  Any approvals that must be obtained from governmental entities
          who are lessors under leases included in the Properties (or who
          administer such leases for such lessors) and that are customarily
          obtained post-closing.

          (d)  This Agreement and the Assignment and Bill of Sale provided for
          in Section 14.(a)(i) hereof and any other documentation provided for
          herein to be executed by Seller, will, when executed and delivered,
          constitute the legal, valid, and binding obligations of Seller,
          enforceable according to their terms, except as limited by bankruptcy
          or other laws applicable generally to creditor's rights and as limited
          by general, equitable principles.

          (e)  Except as disclosed on Exhibit D, there are no pending suits,
          actions, or other proceedings in which Seller is a party that
          materially affect the Properties (including, without limitation, any
          actions challenging or pertaining to Seller's title to any of the
          Properties) or affect the execution and delivery of this Agreement or
          the consummation of the transaction contemplated hereby.

     6.   BUYER'S REPRESENTATIONS.  Buyer represents to Seller that:

          (a)  Buyer is a corporation duly organized and legally existing under
          the laws of its state of organization.  Buyer is qualified to do
          business in Wyoming and is in good standing, or will be at Closing.

          (b)  Buyer has full power and ability to enter into and perform its
          obligations under this Agreement (including, but not limited to the
          payment of the Purchase Price at Closing) and has taken all necessary
          action to enter into this Agreement and perform its obligations
          hereunder.

          (c)  Buyer's execution and delivery of this Agreement, the
          consummation of the transaction contemplated hereby, and Buyer's
          compliance with the terms hereof, will not result in any default under
          any agreement or instrument to which Buyer is a party or by which the
          Properties are bound that would be material to this transaction.
          Buyer's execution and delivery of this Agreement will not violate any
          contractual provision, order, writ, injunction, decree, statute, rule,
          or regulation applicable to Buyer or to the Properties that would be
          material to this transaction, except the following:

               (i)  Any waivers of preferential rights to purchase that must be
               obtained from third parties;

               (ii)  Compliance with the "HSR Act;" and,

               (iii)  Any approvals that must be obtained from governmental
               entities who are lessors under leases included in the Properties
               (or who administer such leases for such lessors) and that are
               customarily obtained post-closing.

          (d)  This Agreement and the Assignment and Bill of Sale provided for
          in Section 14.(a)(i) hereof and any other documentation provided for
          herein to be executed by Buyer, will, when executed and delivered,
          constitute, the legal, valid, and binding obligations of Buyer,
          enforceable according to their terms, except as limited by bankruptcy
          or other laws applicable generally to creditor's rights and as limited
          by general, equitable principles.

          (e)  There are no pending suits, actions, or other proceedings in
          which Buyer is a party that materially affect the execution and
          delivery of this Agreement or the consummation of the transaction
          contemplated hereby.

          (f)  Buyer is a knowledgeable purchaser, owner, and operator of oil
          and gas 

                                       3


          properties, has the ability to evaluate, and has evaluated, the 
          Properties for purchase, and is acquiring the Properties for its
          own account and not with the intent to make a distribution within the
          meaning of the Securities Act of 1933, as amended (and the rules and
          regulations pertaining thereto), or a distribution thereof in
          violation of any other applicable securities laws, rules, or
          regulations.

          (g)  Buyer wishes to replace Seller as operator in every well
          described on Exhibit B which Seller presently operates.  Accordingly,
          Buyer is, or will become, qualified to operate such Properties under
          the applicable laws, rules, and regulations of the jurisdiction in
          which such Properties are located.

     7.   COVENANTS OF SELLER AND BUYER PENDING CLOSING.  Between the date of
this Agreement and the Closing Date:

          (a)  Seller shall permit Buyer access as follows:

               (i)  Seller shall give Buyer and its attorneys and other
               representatives, who have a legitimate need to know, access at
               all reasonable times during normal business hours to the
               Properties and, at Seller's office, to Seller's records
               (including, without limitation, title files, division order
               files, well files, production records, equipment inventories, and
               production severance, and ad valorem tax records) pertaining to
               the ownership and operation of the Properties, to conduct due
               diligence reviews as contemplated by Section 8. below. Buyer may
               make copies of such records at its expense but shall, if Seller
               so requests, return all copies so made if the Closing does not
               occur. Seller shall not be obligated to provide Buyer with access
               to any records or data that Seller considers to be proprietary or
               confidential or that Seller cannot provide to Buyer without
               breaching, or risking a breach of, confidentiality agreements
               with other parties.  Until Closing, all records and data provided
               shall be subject to the previously executed Confidentiality
               Agreement between Buyer and Seller. SELLER MAKES NO WARRANTY, AND
               EXPRESSLY DISCLAIMS ALL WARRANTIES, AS TO THE ACCURACY OR
               COMPLETENESS OF THE FILES AND OTHER INFORMATION THAT IT MAY
               PROVIDE TO BUYER OR THAT MAY BE PROVIDED BY OTHERS.

               (ii)  Seller shall make a good faith effort to give Buyer, or
               Buyer's authorized representatives, who have a legitimate need to
               know, at reasonable times and upon adequate notice to Seller,
               physical access to the Properties for the purpose of inspecting
               same.  Buyer recognizes that some of the Properties are operated
               by third parties and that Seller's ability to obtain access to
               such Properties, and the manner and extent of such access, is
               subject to the consent of such third parties.  Buyer agrees to
               comply fully with the rules, regulations, and any instructions
               issued by Seller or third party (where a Property is operated by
               such third party) regarding the actions of Buyer while upon,
               entering, or leaving the Properties.

               (iii)  If Buyer exercises rights of access under this Section or
               otherwise, or conducts examinations or inspections under this
               Section or otherwise, then (a) Buyer will be accompanied by
               Seller's representative at all times; (b) such access,
               examination, and inspection shall be at Buyer's sole risk, cost,
               and expense, and Buyer waives and releases all claims against
               Seller (its affiliates and their respective directors, officers,
               employees,attorneys, contractors, and agents) arising in any way
               therefrom or in any way connected therewith or arising in
               connection with the conduct of its directors, officers,
               employees, attorneys, contractors, and agents in connection
               therewith; and (c) BUYER SHALL RELEASE, INDEMNIFY, DEFEND, AND
               HOLD HARMLESS SELLER (AND 

                                       4


               ITS PARENT, SUBSIDIARY COMPANIES, AND OTHER AFFILIATES 
               AND THEIR RESPECTIVE OFFICERS, DIRECTORS, EMPLOYEES, 
               ATTORNEYS, CONTRACTORS, AND AGENTS) (HEREINAFTER COLLECTIVELY 
               REFERRED TO AS "SELLER GROUP") FROM ANY AND ALL CLAIMS, 
               ACTIONS, CAUSES OF ACTION, LIABILITIES, DAMAGES, LOSSES,COSTS, 
               OR EXPENSES (INCLUDING, WITHOUT LIMITATION, COURT COSTS AND 
               ATTORNEYS' FEES), OR LIENS OR ENCUMBRANCES FOR LABOR OR
               MATERIALS, ARISING OUT OF OR IN ANY WAY CONNECTED WITH SUCH
               ACCESS, EXAMINATION, AND INSPECTION.  THE FOREGOING RELEASE AND
               INDEMNIFICATION SHALL APPLY WHETHER OR NOT SUCH CLAIMS, ACTIONS,
               CAUSES OF ACTION, LIABILITIES, DAMAGES, LOSSES, COSTS, OR
               EXPENSES ARISE OUT OF (i) NEGLIGENCE (INCLUDING SOLE NEGLIGENCE,
               SIMPLE NEGLIGENCE, CONCURRENT NEGLIGENCE, ACTIVE OR PASSIVE
               NEGLIGENCE, OR OTHERWISE, BUT EXPRESSLY NOT INCLUDING GROSS
               NEGLIGENCE OR WILLFUL MISCONDUCT) OF SELLER OR ANY OTHER
               INDEMNIFIED PARTY, OR (ii) STRICT LIABILITY.

          (b)  Seller shall continue to conduct its business in its ordinary
          course, and in accordance with all applicable ordinances, statutes,
          rules, and regulations of all local, state, and federal governments. 
          Seller shall not enter into or assume any contract or commitment which
          is not in the ordinary course of business as heretofore conducted in
          association with the Properties and shall carry on its business and
          operate the Properties as a reasonably prudent operator. Subject to
          existing contractual obligations, Seller shall not conduct, or commit
          to participate in, on behalf of Buyer, any operation on the
          Properties, or lands pooled or unitized therewith and shall not enter
          into a contract for the sale of crude oil from the Properties
          continuing in effect past the Effective Date without Buyer's prior
          written consent. However, Seller may take such steps and incur such
          expenses as it deems necessary in its sole opinion to deal with an
          emergency to safeguard any part of the Property without first
          consulting with Buyer.  As soon as possible after the emergency,
          Seller shall advise Buyer of such emergency action.  Except as set
          forth in this Agreement, Seller shall not sell, assign, transfer,
          mortgage, farmout, or otherwise dispose of, abandon, or encumber any
          material portion of the Properties.

          (c)  Seller shall use reasonable efforts, consistent with industry
          practices in transactions of this type, to identify, with respect to
          each material portion of the Properties, (i) all preferential rights
          to purchase that would apply to the transaction contemplated hereby
          and (ii) the parties holding such rights.  In attempting to identify
          the same, Seller shall not be obligated to go beyond its own records.
          Seller shall request from the parties so identified, and in accordance
          with the documents creating such rights, waivers of the preferential
          rights to purchase. Seller shall have no obligation hereunder other
          than to attempt to identify such preferential rights and to request
          such waivers.  Seller shall not be obligated to assure that such
          waivers are obtained.  Seller may tender to any party refusing to
          waive such a preferential right the interest covered by such right at
          a value as mutually agreed to by Buyer and Seller which shall be made
          in good faith, but in no event shall the value of a well exceed the
          value assigned to it by Ryder-Scott Company, an independent petroleum
          reservoir engineering company, in its recent Reserve Report dated
          January 14, 1998, prepared on behalf of Seller (hereinafter referred
          to as the "Ryder-Scott Report") using the present value (future net
          income before income taxes discounted at ten percent (10%)) of the
          total proved reserves. If Buyer and Seller are unable to agree on a
          value, the value for a well shall be determined as provided in Section
          11.(a)(ii) using the V/T = PVW/PVC equation for Properties falling in
          Categories A and B as shown on Exhibit E.  This value shall be used in
          determining the value of any 

                                       5


          interest in a well covered by a preferential right to purchase.  
          The value shall be determined using the formula as provided in 
          Section 11.(a)(iii) for Properties falling in Category C where 
          F=Seller's net acres subject to a preferential right to purchase.  
          To the extent that such an interest is actually sold to a party 
          exercising such a preferential right, it shall be excluded from 
          the transaction contemplated hereby, and the Base Purchase Price 
          shall be reduced by the amount such party paid to Seller for such 
          interest unless the parties hereto agree otherwise.

          (d)  If applicable, as soon as practicable after the execution hereof,
          Buyer shall prepare and submit any necessary filings in connection
          with the transaction contemplated by this Agreement under the HSR Act.
          Buyer shall pay all filing fees in connection with such filing, shall
          request expedited treatment of such filing by the Federal Trade
          Commission ("FTC"), shall promptly make any appropriate or necessary
          subsequent or supplemental filings, and shall furnish to Seller copies
          of all filings made under the HSR Act at the same time they are filed
          with the FTC.  Seller shall cooperate with Buyer as to all filings
          required by the HSR Act.

          (e)  After both parties have executed this Agreement, Seller shall
          deliver to Buyer a copy of its "pay list" for each well listed on
          Exhibit B (which pay list shall include the name, address, social
          security number, and applicable share of proceeds of production, to
          the extent such information is contained in Seller's records, for each
          party to whom Seller is disbursing proceeds of production with respect
          to such property); and, a list of all parties for whom it is holding
          in suspense proceeds of production. Seller does not represent or
          warrant to Buyer the accuracy of the "pay lists" so delivered.

          (f)  At such time that all Asserted Defects (as hereinafter defined)
          have been fully resolved to the satisfaction of both Parties or if no
          Defects have been asserted by Buyer as of the Defect Notice Date (as
          hereinafter defined)upon Seller's receipt of Buyer's written
          confirmation and assurance that all Defects, if any, have been
          resolved and Buyer is prepared to close the transaction subject only
          to Seller's performance of its closing obligations as set forth in
          Section 14(a), Seller shall give Buyer and its accountants access to
          any and all accounting information in Seller's possession reasonably
          requested by Buyer for the preparation by Buyer, at its sole expense
          and risk, of pro-forma financial statements reflecting the financial
          performance of the Properties for the most recent three (3) calendar
          year(s). Buyer agrees that none of the information compiled for the
          purpose of this limited audit shall be used for the purpose of due
          diligence by Buyer or otherwise to assert any claim against Seller. 
          Seller shall have no responsibility whatever for the financial
          statements so prepared by Buyer.

     8.   DUE DILIGENCE REVIEWS.

          (a)  The term "Defect" as used in this Section shall mean any of the
          following:

               (i)  As of the Effective Date, Seller's ownership of a well
               listed on Exhibit B hereto either, (A) entitles Seller to receive
               a share of the oil, gas, and other hydrocarbons produced from, or
               allocated to, such well that is less than the share set forth on
               Exhibit B for such well in the columns headed "Net Revenue
               Interest (NRI)" and "Overriding Royalty Interest (ORI)",
               excepting any decreases caused by an increase in the landowner's
               royalty payable to the Federal and State Governments or pursuant
               to contractual obligations, including, without limitation,
               sliding scale overriding royalties, which are tied to amount of
               production, or as mandated by Federal and State statutes or as
               promulgated in the respective Federal and State Rules and
               Regulations; or, (B) causes Seller to bear a share of the cost of
               operating such well greater than the share set forth on Exhibit B
               for such well in the column headed "Working Interest (WI)"
               (without a proportionate increase in the share of 

                                       6


               production to which Seller is entitled from such well);

               (ii)  Seller's ownership of a Property is subject to a lien other
               than (A) a lien that will be released at or before Closing, (B) a
               lien for taxes not yet delinquent, or (C) a lien under an
               operating agreement or similar agreement, to the extent the same
               relates to expenses incurred that are not yet due;

               (iii)  Seller's ownership of a Property is subject to a
               preferential right to purchase, unless a waiver of such right has
               been obtained with respect to the transaction contemplated hereby
               or an appropriate tender of the applicable interest has been made
               to the party holding such right and the period of time required
               for such party to exercise such right has expired without such
               party exercising such right;

               (iv)  Seller's ownership of a Property is subject to an
               imperfection in title that, if asserted, would cause a Defect, as
               defined in clause (i) above, to exist, and such imperfection in
               title normally would not be waived by reasonable and prudent
               persons engaged in the oil and gas business with knowledge of all
               the facts and their legal bearing and would materially impair or
               prevent Buyer from receiving payment from the purchasers of
               production, and would prevent the economic benefit Buyer could
               reasonably expect by acquiring the Properties;

               (v)  Seller's ownership of a non-producing Property is subject to
               an imperfection in title that, if asserted, would cause Seller's
               ownership as shown on Exhibit A to be less; and such imperfection
               in title normally would not be waived by reasonable and prudent
               persons engaged in the oil and gas business with knowledge of all
               the facts and their legal bearing and would materially prevent
               the economic benefit Buyer could reasonably expect by acquiring
               such Property.

          (b)  Buyer may conduct, to the extent it deems appropriate and at its
          sole risk and cost, such examinations and investigations as it may
          choose with respect to the Properties in order to determine whether
          "Defects" exist.  Unless waived, Buyer shall notify Seller in writing
          of such Defects as soon as they are identified, but no later than ten
          (10) days prior to the date upon which Closing is scheduled to occur
          pursuant to Section 14. [and not as extended pursuant to 14.(i) or
          14.(ii)] (hereinafter "Defect Notice Date").  Those Defects identified
          in such notice to Seller are herein called "Asserted Defects".  Such
          notification shall include a description of the Asserted Defect, the
          lease(s) described on Exhibit A affected by such Asserted Defect, the
          well(s) listed on Exhibit B to which the Asserted Defect relates, and
          all supporting documentation reasonably necessary fully to describe in
          detail the basis for the Asserted Defect; and, for each property,
          lease and applicable well, the size of any variance from "Net Revenue
          Interest (NRI)", "Overriding Royalty Interest (ORI)", or "Working
          Interest (WI)" set forth in Exhibit B that does or could result from
          such Asserted Defect.  Buyer hereby waives all Defects that it fails
          to identify to Seller as Asserted Defects on or before the Defect
          Notice Date.  If Buyer timely notifies Seller of Asserted Defects,
          Seller (i) shall have the right (but not the obligation) to attempt to
          cure such Asserted Defects prior to Closing, and (ii) shall also have
          the right (which may be exercised at any time before the Closing Date)
          to postpone the Closing by designating a new Closing Date not later
          than thirty (30) days after the Closing Date then existing, if Seller
          desires additional time to attempt to cure (including determining if
          it will attempt to cure) one or more Asserted Defects. In lieu of
          curing or attempting to cure an Asserted Defect, Seller may elect, at
          any time prior to Closing with respect to any Asserted Defect, to
          indemnify and hold Buyer harmless from and against any actual damages
          or loss (but specifically excluding consequential damages, special
          damages, or similar damages) Buyer may suffer as a result of a third
          party claim based on such Asserted Defect; provided, 

                                       7


          unless Buyer consents, Seller may not so elect to indemnify Buyer 
          in lieu of curing such Asserted Defect(s) if the amount attributable 
          to such Asserted Defect(s) exceeds One Million Dollars($1,000,000.00).
          If Seller elects to indemnify Buyer as to an Asserted Defect, such 
          Asserted Defect will be treated under this Agreement as cured and, as 
          to such indemnified Asserted Defect, SELLER SHALL RELEASE, INDEMNIFY, 
          DEFEND, AND HOLD HARMLESS BUYER FROM AND AGAINST ANY AND ALL LOSS, 
          COST, DAMAGE, EXPENSE, OR LIABILITY WHATSOEVER, INCLUDING ATTORNEYS' 
          FEES, ARISING OUT OF THE ASSERTED DEFECT SELLER HAS ELECTED TO 
          INDEMNIFY (EXCEPT ANY CAUSED SOLELY BY THE GROSS NEGLIGENCE OR WILLFUL
          MISCONDUCT OF BUYER).

          (c)  Buyer shall have the right to make an environmental assessment of
          the Properties during the period beginning on the date of execution of
          this Agreement and ending on the Defect Notice Date.  Subject to the
          provisions regarding Buyer's rights to access under Section 7 hereof,
          Buyer and its agents shall have the right to enter upon the Properties
          and all buildings and improvements thereon, inspect the same, conduct
          soil and water tests and borings, and generally conduct such tests,
          examinations, investigations, and studies as Buyer may deem necessary
          or appropriate for the preparation of appropriate engineering and
          other reports in relation to the Properties and their physical and
          environmental condition. If Buyer proposes to undertake an
          environmental assessment, Buyer's proposed plan, the consultants to be
          used, and testing protocol must be approved by Seller before the work
          may begin.  Buyer agrees promptly to provide to Seller a copy of the
          environmental assessment, including any reports, data, and
          conclusions. Buyer shall keep all data and information acquired by
          such examinations and the results of all analyses of such data and
          information strictly confidential and shall not disclose same to any
          person or agency without the prior written approval of Seller. BUYER
          SHALL RELEASE, INDEMNIFY, DEFEND, AND HOLD HARMLESS THE SELLER GROUP
          FROM AND AGAINST ANY AND ALL LOSS, COST, DAMAGE, EXPENSE, OR LIABILITY
          WHATSOEVER, INCLUDING ATTORNEYS' FEES, ARISING OUT OF ANY
          ENVIRONMENTAL ASSESSMENT INCLUDING, BUT NOT LIMITED TO, INJURY TO OR
          DEATH OF PERSONS OR DAMAGE TO PROPERTY OCCURRING IN, ON, OR ABOUT THE
          PROPERTIES AS A RESULT OF SUCH ACTIVITIES (EXCEPT ANY SUCH INJURIES OR
          DAMAGES CAUSED SOLELY BY THE GROSS NEGLIGENCE OR WILLFUL MISCONDUCT OF
          ANY MEMBER OF THE SELLER GROUP).

          (d)  After the Defect Notice Date, Buyer shall be deemed to have
          inspected the Properties or waived its right to inspect the Properties
          for all purposes and satisfied itself as to their physical and
          environmental condition, both surface and subsurface.

     9.   ADVERSE ENVIRONMENTAL CONDITIONS.

          Seller represents to Buyer that to the best of its knowledge there are
          no environmental conditions, as hereinafter defined, existing as of
          the date hereof which Seller has not disclosed to Buyer.  Seller will
          advise Buyer of any Condition that Seller becomes aware of from the
          date hereof to the Closing Date.

          (a)  Buyer shall have until the Defect Notice Date to notify Seller of
          any material adverse environmental condition of the Properties which
          Buyer deems unacceptable and provide evidence of the condition to
          Seller.  An environmental condition is a material adverse
          environmental condition ("Condition") only if the following criteria
          are met:

               (i)  The environmental condition would have been required to be
               remediated on the Effective Date under the Environmental Laws;
               and,

                                       8


               (ii)  The total cost to remediate all environmental conditions
               identified by Buyer affecting the Properties to the state
               required by the Environmental Laws is reasonably estimated to be
               at least $100,000.00.

          (b)  "Environmental Law" shall mean any federal, state, or local law,
          rule, regulation, order, or ordinance in effect as of the Effective
          Date of this Agreement pertaining to protecting the public health,
          welfare, and the environment.

          (c)  At Closing, Seller may elect any of the following provided a
          Condition exists:

               (i)  Decrease the Purchase Price by a mutually acceptable amount
               reflecting Seller's proportionate share, based on its working
               interest, of the cost reasonably estimated to remediate a
               Condition affecting the Properties to such a state as required by
               the Environmental Laws;

               (ii)  Remove the affected Properties from this Agreement and
               adjust the Base Purchase Price by an amount mutually agreed to by
               Seller and Buyer. If Buyer and Seller are unable to agree on an
               amount, the value of Properties falling in Categories A and B
               shall be determined as provided in Section 11.(a)(ii) using the
               V/T = PVW/PVC equation and an appropriate adjustment will be made
               using this value. The value of all affected Properties falling in
               Category C shall be determined using the formula in Section
               11.(a)(iii) where F=Seller's net acres affected by the Condition.

               (iii)  Remedy, or, if applicable, agree to indemnify, Buyer in
               accordance with Section 8(b); the Condition, as provided below.

          (d)  If option (c)(i) above is chosen, Buyer shall be responsible for
          any remediation and if the actual cost to remediate a Condition
          exceeds the amount of the estimate, Buyer shall pay the additional
          costs to remediate the Condition as required by applicable law.

          (e)  If option (c.)(iii). above is chosen, the following shall govern
          the remediation:

               (i)  Seller shall be responsible for all negotiations and
               contacts with federal, state, and local agencies and authorities
               with regard to the Condition or remediation. Buyer shall not make
               any independent contacts with any agency, authority, or other
               third party with respect to the Condition or remediation and will
               keep all information regarding the Condition and remediation
               confidential, except in each instance to the extent required by
               applicable law.

               (ii)  Seller shall remediate the Condition to the state agreed
               upon by Seller and Buyer, but in no event will Seller be required
               to remediate the Condition beyond the state required by the
               Environmental Laws.

               (iii)  Buyer will grant and warrant access to the affected
               Properties after Closing to Seller and third parties conducting
               assessments or remediation, to the extent and as long as
               necessary to conduct and complete the assessment or remediation
               work, to remove equipment and facilities, and to perform any
               other activities reasonably necessary in connection with
               assessment or remediation.

               (iv)  Buyer will use its best efforts not to interfere with
               Seller's ingress and egress or assessment or remediation
               activities.  Seller shall make reasonable 

                                       9


               efforts to perform the work so as to minimize disruption to 
               Buyer's business activities and to the Properties.

               (v)  Seller shall continue remediation of the Condition until the
               first of the following occurs:

                    (1)  The appropriate governmental authorities provide
                    written notice to Seller or Buyer that no further
                    remediation of the Condition is required;

                    (2)  The parties agree that the Condition has been
                    remediated to the state required by the Environmental Laws
                    or as agreed by the parties.

                    Upon the occurrence of either (1) or (2) above, Seller shall
                    notify Buyer that remediation of the Condition is complete
                    and provide a copy of the notification described in (1)
                    above, if applicable.  Upon delivery of Seller's notice,
                    Seller shall be released from all liability and have no
                    further obligations under any provisions of this Agreement
                    in connection with a Condition.

               (vi)  Until Seller completes remediation of a Condition, Seller
               and Buyer will each notify the other of any pending or threatened
               claim, action, or proceeding by any authority or private party
               that relates to or would affect the environmental condition, the
               assessment, or the remediation of the affected Properties.

               (vii)  After Buyer takes over as operator, and before Seller has
               completed remediation of a Condition, if a leak, spill, or
               discharge of any material or substance ("Occurrence") occurs on
               the affected Properties, or any part of them, Buyer will promptly
               notify Seller and act promptly to minimize the effects of the
               Occurrence.  If a spill, leak, or discharge occurs and Seller
               determines that it may affect the area where Seller is conducting
               remediation or assessment, Buyer will hire a consultant (who must
               be acceptable to Seller) to assess the effect of the Occurrence
               on the environmental condition of the affected Properties, and
               the cost of Seller's remediation work and the cost of the
               additional work required as the result of the Occurrence.  Unless
               the Occurrence was caused solely by Seller, Buyer will be
               responsible for the incremental cost of remediating the impact of
               the Occurrence.  If Seller's remediation is expanded to
               incorporate remediation of the Occurrence, Buyer will promptly
               pay its share of costs and expenses to Seller as the work is
               performed, within thirty (30) days of receipt of invoices for the
               work (with supporting documentation).  Payments not made timely
               will bear interest at a rate of twelve percent (12%) per annum or
               the maximum lawful rate, whichever is less, compounded daily from
               the date of Buyer's receipt of the invoice until paid.

               If the cost of the additional work equals or exceeds the cost to
               complete the remediation which would have been incurred but for
               the Occurrence, Seller will pay Buyer the cost that would have
               been incurred by Seller to complete the remediation but for the
               Occurrence.  As consideration for this payment, Buyer will accept
               the environmental condition of the affected Properties as they
               exist on the date of the payment, assume full responsibility for
               remediating the affected Properties and related off-site
               contamination in accordance with this Agreement, and agrees to
               release, not to sue, indemnify, hold harmless, and defend Seller
               as to claims and liabilities arising from the Occurrence to the
               same extent as described in Sections 17., 18., and 20.

                                       10


               (viii)  If Seller undertakes remediation as to any Properties in
               which Seller's ownership was less than 100%, and provided that
               the expense(s) incurred by Seller in such remediation are fair
               and reasonable, Buyer will bill the other working interest owners
               for their share of the remediation expenses.  Regardless of
               whether Buyer recoups any amount from the other working interest
               owners, Buyer will refund to Seller, within sixty (60) days of
               each Seller invoice, with documentation, any amounts expended by
               Seller over the amount attributable to Seller's former working
               interest share.

               (ix)  If Seller will assess or remediate the affected Properties
               after Closing, the Assignment and Bill of Sale or other
               recordable instrument will restate the rights and obligations of
               this section.

     10.  DISPOSAL OF MATERIALS, SUBSTANCES, AND WASTES; COMPLIANCE WITH LAW. 
Buyer will store, handle, transport, and dispose of or discharge all 
materials, substances, and wastes from the Properties (including produced 
water, drilling fluids, NORM, and other wastes), whether present before or 
after the Effective Date, in accordance with applicable local, state, and 
federal laws and regulations.  Buyer will keep records of the types, amounts, 
and location of materials, substances, and wastes that are stored, 
transported, handled, discharged, released, or disposed of onsite and 
offsite.  When any lease terminates, an interest in which has been assigned 
under this Agreement, Buyer will undertake additional testing, assessment, 
closure, reporting, or remedial action with respect to the Properties 
affected by the termination as is necessary to satisfy all local, state, or 
federal requirements in effect at that time and necessary to restore the 
Properties. Buyer shall assume full responsibility for the operations 
conducted pursuant to this Section 10. and agrees to release, not to sue, 
indemnify, hold harmless, and defend Seller as to all claims and liabilities 
arising therefrom to the same extent as described in Sections 17., 18., and 
20.

     11.  CERTAIN PRICE ADJUSTMENTS TO THE BASE PURCHASE PRICE.

          (a)  If Buyer presents Asserted Defects to Seller as a part of the due
          diligence reviews provided for in Section 8. above, and if Seller is
          unable or unwilling to cure such Asserted Defects prior to Closing, or
          if Buyer has elected to treat a Property affected by a casualty loss
          pursuant to Section 22. as if it were a Property affected by an
          Asserted Defect, then an appropriate adjustment to the Base Purchase
          Price to account for such Asserted Defects shall be made as follows:

               (i)  Buyer and Seller shall attempt to agree upon an appropriate
               adjustment to the Base Purchase Price to account for an Asserted
               Defect which Seller either is unable or unwilling to cure prior
               to Closing, and those Properties, or any part thereof, associated
               with the Asserted Defect shall be excluded from this Agreement
               and any rights of Buyer hereunder to such Properties shall
               terminate.

               (ii)  If Buyer and Seller are unable to agree upon an appropriate
               adjustment with respect to an Asserted Defect which affects
               Seller's interest in any Property falling in either Category A or
               B as shown on Exhibit E, adjustments shall be made as follows:

               Determine the value of all wells contained in the Unit in which
               the Property affected by the Asserted Defect falls by using the
               following equation and solve for V. "Unit" as used herein shall
               mean a drilling and spacing unit as determined by order or rule
               of the Wyoming Oil & Gas Conservation Commission or as otherwise
               permitted by law, or the Participating Area affected by the
               Asserted Defect.

                    V/T = PVW/PVC

                    T = Total amount ($) allocated to category containing Unit
               as shown 

                                       11



               on Exhibit E.

                    PVW = BFIT PV @ 10% (Future net income before income taxes
               discounted at ten percent (10%)) of total proved reserves in all
               wells in Unit as contained in the Ryder-Scott Report.

                    PVC = BFIT PV @ 10% (Future net income before income taxes
               discounted at ten percent (10%)) of total proved reserves in all
               wells in Category as contained in the Ryder-Scott Report.

               The Base Purchase Price shall be adjusted by the absolute value
               of an amount using the following formula:

                    Adjustment = V X (1-[B/C])

                    V = Value of wells as determined above.

                    B = Correct net revenue interest for all wells in Unit
               including any overriding royalty interest.

                    C = Net revenue interest, including any overriding royalty
               interest, as shown on Exhibit B in all wells in Unit.

               (iii)  If an Asserted Defect affects Seller's interest in any
               Property falling in Category C and Buyer and Seller cannot
               mutually agree on an appropriate adjustment to the Base Purchase
               Price, adjustments shall be made using the following formula:

                    Adjustment = T X F/25,000

                    T = Total amount ($) allocated to Category C as shown on
               Exhibit E.

                    F = Seller's net acres affected by uncured Asserted Defect.

          (b)  If it is determined that Seller's interest in a well listed on
          Exhibit B is greater or lesser than the interest shown for such well
          under the columns headed "Net Revenue Interest (NRI)" and "Overriding
          Royalty Interest (ORI)" on Exhibit B, then Seller or Buyer may propose
          an increase or decrease, as applicable, in the Base Purchase Price, in
          which case such increase or decrease shall be handled in the same
          manner as provided above with respect to adjustments for Asserted
          Defects; provided that the party making such determination shall
          notify the other party of such adjustment on or before the Defect
          Notice Date.  Buyer shall have an affirmative obligation to disclose
          to Seller circumstances discovered by Buyer in its due diligence
          review that could result in an increase in the Base Purchase Price
          hereunder.  No increase in the Base Purchase Price will result from
          any royalty reduction resulting under the Federal Royalty Reduction
          Program.

          (c)  Notwithstanding the adjustments to be made pursuant to
          subsections 11.(a) and 11.(b) above, if such adjustments do not exceed
          $250,000 in the aggregate, no such adjustments shall be made and none
          of the Properties that would otherwise have been excluded pursuant to
          subsection 11.(a) above shall be excluded.  If the adjustments to be
          made pursuant to subsections 11.(a) and 11.(b) above, do exceed
          $250,000.00, the Base Purchase Price shall be adjusted according
          thereto.

     12.  CONDITIONS PRECEDENT TO BUYER'S OBLIGATIONS.  Buyer's obligations at
Closing under this Agreement are subject to each of the following conditions:

          (a)  Seller's representations under this Agreement shall be true and
          accurate in all 

                                       12


          material respects as of the date when made and at Closing, except 
          as to changes specifically contemplated by this Agreement or consented
          to by Buyer in writing.

          (b)  Seller shall have performed and complied in all material respects
          with every covenant, agreement, and condition required by it under
          this Agreement prior to or at the Closing unless performance or
          compliance therewith shall have been waived by Buyer in writing.

          (c)  If applicable, Buyer and Seller shall have received approval from
          the FTC under the HSR Act of the transaction contemplated by this
          Agreement, or shall have received notification that the waiting period
          under such act has been terminated, or the waiting period under such
          act shall have expired.

          (d)  The Base Purchase Price increase or decrease resulting from the
          adjustments to be made pursuant to subsections 11.(a) and 11.(b) does
          not exceed twenty percent (20%) of the Base Purchase Price.

          (e)  On the Closing Date, no material suit, action, or other
          proceeding against Buyer shall be pending before any court or
          governmental agency seeking to restrain, prohibit, or obtain damages
          or other relief in connection with the consummation of the transaction
          contemplated by this Agreement.

If any such condition precedent to the obligations of Buyer under this Agreement
is not met as of the Closing Date, and if Buyer is not in material breach of its
obligations hereunder, this Agreement may be terminated at the option of Buyer. 
If Buyer thus terminates this Agreement, the Deposit shall be returned to Buyer
and the parties shall have no further obligations to one another hereunder
(other than the indemnifications contained in Sections 7.(a)(iii), 8.(c), and
21. hereof, which shall survive such termination).  Notwithstanding the
foregoing, if a condition set forth above, other than condition 12.(c) or
12.(d), is not met (and is asserted by Buyer as a failure of one of its
conditions of Closing), and if the reasons such condition is not met relate only
to some, but not all, of the Properties, failure of such condition to be met
may, at the option of either Buyer or Seller, be treated as an uncured Asserted
Defect and handled in accordance with the process set forth in Section 11.
above.

     13.  CONDITIONS PRECEDENT TO SELLER'S OBLIGATIONS.  Seller's obligations at
Closing under this Agreement are subject to each of the following conditions:

          (a)  Buyer's representations under this Agreement shall be true and
          accurate in all material respects as of the date when made and at
          Closing, except as to changes specifically contemplated by this
          Agreement or consented to by Seller.

          (b)  Buyer shall have performed and complied in all material respects
          with every covenant, agreement, and condition required by it under
          this Agreement prior to or at the Closing unless compliance therewith
          shall have been waived by Seller.

          (c)  If applicable, Buyer and Seller shall have received approval from
          the FTC under the HSR Act of the transaction contemplated by this
          Agreement, or shall have received notification that the waiting period
          under such act has been terminated, or the waiting period under such
          act shall have expired.

          (d)  The Base Purchase Price reduction or increase resulting from the
          adjustments to be made pursuant to subsections 11.(a) and 11.(b) does
          not exceed twenty percent (20%) of the Base Purchase Price.

          (e)  On the Closing Date, no material suit, action, or other
          proceeding against Seller shall be pending before any court or
          governmental agency seeking to restrain, prohibit, or obtain damages
          or other relief in connection with the consummation of the transaction
          contemplated by this Agreement.

                                       13


If any such condition precedent to the obligations of Seller under this 
Agreement is not met as of the Closing Date, this Agreement may be terminated 
at the option of Seller.  If Seller terminates this Agreement because of 
Buyer's failure to fulfill condition 13.(a) or 13.(b), the Deposit shall not 
be returned to Buyer.  If Seller terminates this Agreement because of 
conditions 13.(c), 13.(d), or 13.(e), and Buyer is not in material default 
under this Agreement, the Deposit shall be returned to Buyer.  Thereafter, 
Seller and Buyer shall have no further obligations to one another hereunder 
(other than the indemnifications contained in Section 7.(a)(iii), 8.(c), and 
21. hereof, which shall survive such termination).

     14.  THE CLOSING.  If the conditions referred to in Section 12. of this 
Agreement (the "Conditions Precedent to Buyer's Obligations") and Section 13. 
of this Agreement (the "Conditions Precedent to Sellers Obligations") have 
been satisfied or waived, the consummation of the transaction contemplated 
hereby ("Closing") shall take place in the offices of Seller, at 201 Main 
Street, Fort Worth, Texas 76102, on May 14, 1998, at 10:00 a.m. Central 
Standard Time, or at such other date and time (i) as the Buyer and Seller may 
agree or, (ii) to which Seller may postpone the Closing pursuant to Section 
8.(b) hereof (such date and time herein called the "Closing Date"). It is 
provided however, that Seller shall not be permitted to extend the Closing 
Date pursuant to Section 8(b) beyond July 14, 1998, unless Buyer consents.  
At the Closing:

          (a)  Seller shall:

               (i)  Execute, acknowledge, and deliver to Buyer a conveyance of
               the Properties (the "Assignment and Bill of Sale"), which shall
               include a warranty of title as against claims arising by through
               or under Seller, and not otherwise, and in the form attached
               hereto as Exhibit C (with Exhibits A and B attached thereto),
               effective as of seven o'clock a.m., (7:00 a.m.) Mountain Standard
               Time on June 1, 1998, (herein called the "Effective Date");

               (ii)  Execute (and, where required, acknowledge) and deliver to
               Buyer forms of conveyance or assignment as required by the
               applicable authorities for transfers of interests in state or
               federal leases included in the Properties;

               (iii)  Execute and deliver to Buyer letters in lieu of transfer
               orders (or similar documentation), in form acceptable to both
               parties;

               (iv)  If Buyer requests, deliver to Buyer an affidavit or other
               certification (as permitted by the Internal Revenue Code of 1986,
               as amended) that Seller is not a "foreign person" within the
               meaning of Section 1445 (or similar provisions) of such code
               (i.e., Seller is not a non-resident alien, foreign corporation,
               foreign partnership, foreign trust, or foreign estate, as those
               terms are defined in such code and regulations promulgated
               thereunder);

               (v)  With respect to Properties operated by Seller and to the
               extent available, deliver to Buyer all requisite consents of
               non-operators under any operating agreement naming Buyer as
               successor operator; and copies of such requests for consent which
               were sent but not obtained prior to Closing;

               (vi)  Deliver to Buyer resignations of operator and/or Changes of
               Operator/Owner Forms properly executed on behalf of Seller for
               all Seller-operated wells acquired by Buyer; and, any other forms
               required by governmental authorities having jurisdiction which
               must be initiated by Seller to change the operator from Seller to
               Buyer as of the Effective Date; and,

               (vii)  Certificates in form and substance satisfactory to Seller,
               effective as of the Closing Date and executed by Seller's duly
               authorized officer, partner, or owner, as appropriate, to the
               effect that (1) Seller has all requisite corporate, 

                                       14


               partnership, or other power and authority to sell the 
               Properties on the terms of this Agreement and to perform its 
               other obligations under this Agreement and has fulfilled all 
               corporate, partnership, or other prerequisites to closing 
               this transaction, and (2) each individual executing the 
               closing documents has the authority to act on behalf of 
               Seller.

               (viii)  Deliver possession of the Properties to Buyer as of the
               Effective Date.

          (b)  Buyer shall:

               (i)  Deliver to Seller, by wire transfer to an account designated
               by Seller in a bank located in the United States, an amount
               payable in United States dollars equal to the amount as set forth
               on the Closing Settlement Statement as provided for in Section
               16.(c) below;

               (ii)  Deliver to Seller, except to the extent waived by Seller:

          (A)  Evidence of compliance with the requirements of all laws, rules,
          and regulations relating to the transfer of operatorship from Seller
          to Buyer;

          (B)  Evidence of Buyer's bond coverage as required by all laws, rules,
          and regulations, or that a cash deposit, certificate of deposit,
          letter of credit, or some other permitted financial security has been
          accepted by the proper regulatory agency for each well requiring such
          coverage;

          (C)  Evidence of compliance with the requirements of all laws, rules,
          and regulations that Buyer is qualified to succeed to Seller's
          interest in the Properties; and,

          (D)  Certificates in form and substance satisfactory to Seller,
          effective as of the Closing Date and executed by Buyer's duly
          authorized officer, partner, or owner, as appropriate, to the effect
          that (1) Buyer has all requisite corporate, partnership, or other
          power and authority to purchase the Properties on the terms of this
          Agreement and to perform its other obligations under this Agreement
          and has fulfilled all corporate, partnership, or other prerequisites
          to closing this transaction, and (2) each individual executing the
          closing documents has the authority to act on behalf of Buyer.

          (iii)  Execute such forms and take such other steps as Seller may
          reasonably require to (A) succeed Seller with respect to the
          Properties under the rules and regulations of applicable authorities
          and (B) assume any and all liabilities of Seller with respect to the
          wells described on Exhibit B; and,

          (iv)  Take possession of the Properties.

     15.  AFTER CLOSING.  Within thirty (30) days after Closing, Seller shall
make available for delivery to Buyer at Seller's offices all of Seller's lease
files, abstracts and title opinions, division order files, production records,
well files, copies of accounting records (but not including general financial
accounting or tax accounting records), and other similar files and records that
directly relate to the Properties.  Notwithstanding the foregoing, Seller shall
not be required to deliver to Buyer materials that Seller considers proprietary
or confidential or that Seller legally cannot provide to Buyer without
breaching, or risking a breach of, confidentiality agreements with other
parties.  It is expressly understood that Buyer is not entitled to acquire any
records except as expressly provided in Section 1. hereof.  Seller may retain
such files, or copies thereof, or such information as it deems necessary for all
purposes, including but not limited to, preparing a Final Settlement Statement
as provided in Section 16., or for purposes of filing tax returns covering the
Properties.  Any files or materials retained by Seller after Closing pursuant
hereto, shall be sent to Buyer as soon as reasonably practicable after final
payment is made in accordance with the Final 

                                       15


Settlement Statement.  Seller may, at its own expense, have access to and 
make copies of all, or any part thereof, of the files and records provided 
Buyer hereunder at reasonable times and upon reasonable notice during regular 
business hours for as long as the Properties remain in effect.

As to those wells which Seller is disbursing proceeds of production, Seller 
shall continue to collect proceeds of production as long as it remains 
operator and shall be responsible for making disbursements, in accordance 
with its normal procedures (and at normal times), of such proceeds of 
production so collected to the parties entitled to same, with any proceeds of 
production thereafter collected by Seller to be forwarded promptly to its 
successor as operator.

Provided Buyer succeeds Seller as operator, Buyer shall become responsible 
for all disbursements of proceeds of production and such disbursement 
activities shall be included in the matters that Buyer assumes and with 
respect to which Buyer indemnifies Seller under Section 17 below.

SELLER GIVES NO ASSURANCE HEREUNDER THAT BUYER SHALL SUCCEED SELLER AS 
OPERATOR OF ANY PROPERTY WHERE PARTIES OTHER THAN SELLER OWN INTERESTS IN 
SUCH PROPERTY. It is understood that in most (if not all) of the operating 
agreements affecting the Properties, Seller does not have the right to 
transfer operations of the leasehold interests subject thereto to Buyer.  
However, Seller shall use its best efforts to secure consent from all 
non-operators naming Buyer as Operator under such operating agreements prior 
to Closing, to be effective on the Closing Date and provided Closing takes 
place. After Closing, Buyer shall use its best efforts to comply with the 
terms of any operating agreements to name a successor operator thereunder for 
which Seller was unable to obtain prior to Closing. Upon obtaining consent 
from non-operators naming Buyer as successor operator, Seller and Buyer 
promptly shall file all forms required by any governmental agency having 
authority, to change the operator from Seller to Buyer.

Seller shall operate the Seller-operated Properties until the Effective Date 
and thereafter, if necessary, until such time as provided under the 
applicable operating agreement, plan of unitization, or law requires.  As 
soon as practicable thereafter, operations shall be turned over to, and 
become the responsibility of, Seller's successor as Operator To the extent 
Seller so operates any Property after the Effective Date, its obligations to 
Buyer with respect to such operations shall be no greater than those that it 
would have to a non-operator under the applicable operating agreement.  In 
the absence of an operating agreement, those terms and provisions contained 
in the AAPL 610 (1382 Revision) form Operating Agreement shall apply.  THE 
PARTIES RECOGNIZE THAT, UNDER SUCH AGREEMENTS AND SUCH FORM OF AGREEMENT, THE 
OPERATOR IS NOT RESPONSIBLE TO THE OTHER PARTIES THERETO FOR ITS OWN 
NEGLIGENCE AND HAS NO RESPONSIBILITY TO SUCH OTHER PARTIES OTHER THAN FOR 
GROSS NEGLIGENCE OR WILLFUL MISCONDUCT.

As to all wells acquired by Buyer hereunder which Seller continues to operate 
on behalf of Buyer and for Buyer's account after the Effective Date because a 
successor operator has not been approved by the requisite governmental 
authority, or consent of non-operators has not been obtained, by mutual 
agreement or otherwise, Seller will be paid the producing well overhead rates 
shown in the operating agreement applicable to such wells and if there is no 
such established rate, Buyer shall pay Seller for its proportionate share 
thereof based upon the rate of five hundred dollars ($500.00) per month, or 
any part thereof, for each well.

     16.  CERTAIN ACCOUNTING ADJUSTMENTS TO THE PURCHASE PRICE.

          (a)  Appropriate adjustments to the Purchase Price shall be made
          between Buyer and Seller to reflect the following:

               (i)  All rights to proceeds, receipts, reimbursements, credits,
               and income attributable to the Properties and accruing before the
               Effective Time, as defined below, shall be the property of
               Seller.  All proceeds, receipts, credits, income, and charges
               attributable to the Properties acquired by Buyer hereunder and
               accruing on and after the Effective Time shall be the property 

                                       16


               of Buyer.  As to Properties operated by Seller and purchased by
               Buyer hereunder and concerning accounts held in suspense, Seller
               will pay in full the royalty accounts that were suspended because
               the amount due is less than the statutory or contractual minimum
               for payment.  As to all other suspended accounts, if any, Seller
               shall transfer to its successor as operator all monies held in a
               suspended account which were received for production produced
               from or allocated to the Properties on and after the Effective
               Time.  As to proceeds received for production produced from or
               allocated to the Properties before the Effective Time and held in
               a suspense account at Buyer's option, Seller may either: 1)
               Retain the suspended amounts after Closing and, upon proof
               satisfactory to Seller, release the money to the proper party;
               or, 2) Transfer the suspended amounts to Buyer for future
               disbursement.  Once suspended amounts have been transferred to
               Buyer for future disbursement, Buyer agrees to be responsible for
               disbursing the suspended monies to the proper parties and shall
               release, indemnify, defend, and hold harmless the Seller Group
               from any and all claims, actions, causes of action, liabilities,
               damages, losses, costs, or expenses (including, without
               limitation, court costs and attorneys' fees), arising out of or
               in any way connected with making such disbursements, or failure
               to make a disbursement.

               (ii)  Seller shall be responsible for and pay (A) all charges and
               invoices for costs and expenses (including, without limitation,
               lease maintenance payments, drilling and operating expenses,
               capital expenditures, and overhead charges) accruing before the
               Effective Time and attributable to the Properties and (B)
               necessary royalty disbursements of proceeds realized from the
               sale of production produced from and allocated to the Properties
               before the Effective Time.  Buyer shall be responsible for
               payment of (C) all charges and invoices for costs and expenses
               (including, without limitation, lease maintenance payments,
               drilling and operating expenses, capital expenditures, and
               overhead charges) accruing on and after the Effective Time and
               attributable to the Properties acquired hereunder and (D)
               necessary royalty disbursements of proceeds realized from the
               sale of production produced from and allocated to the Properties
               acquired hereunder on and after the Effective Time.  All payments
               made by Seller for items under (C) above for which Buyer is
               responsible shall be reimbursed by Buyer.  Seller shall reimburse
               Buyer for all monies received by Seller from non-operators as
               payment of Seller's invoices for the operations of the wells
               described on Exhibit B for periods on and after the Effective
               Time.

               (iii)  Seller will be credited with an amount equal to the simple
               interest accrued on the Adjusted Purchase Price for the period
               beginning with the Closing Date and continuing through the
               Effective Date at seven percent (7%) simple annual interest
               calculated as follows:

                    INTEREST = Adjusted Purchase Price x number of days from 
                               closing to Effective Date x 7% divided by 365;

               The amount of interest credited to the Buyer will not exceed  
               $250,000.00 regardless of the above calculation, and further 
               such credit shall be only be applied if Closing occurs before 
               the Effective Date.

          (b)  In making such adjustments, the Parties agree that:

               (i) Seller will cause such oil storage facilities which store oil
               produced from the Properties to be gauged or strapped as of 7:00
               a.m. Mountain Standard Time on the Effective Date, herein also
               referred to as the Effective Time.  Seller also has caused the
               gas production meter charts (or if such do not exist, the sales
               meter charts) on the pipelines transporting gas production 

                                       17


               from the Properties to be read as of the Effective Time. The 
               results of such gauging, strapping, or chart reading are 
               conclusive and shall be made available to Buyer.  The 
               production in such storage facilities or through such meters 
               on the gas pipelines as of the Effective Time shall be owned 
               by Seller; and, thereafter, production placed in such oil 
               storage facilities and gas production passing through the 
               aforesaid meters on the pipelines shall be owned by Buyer, 
               insofar as to the interests subject hereto as of Closing.
               
               (ii)  All ad valorem, severance, production and similar taxes
               applicable to the Properties shall be prorated between Seller and
               Buyer as of the Effective Date.  Therefore, all such taxes for
               1997 and prior years and for the portion of 1998 prior to the
               Effective Date levied against the Properties shall be borne and
               paid by Seller; and, all ad valorem and similar taxes for the
               remainder of 1998 and thereafter levied against the Properties
               shall be borne and paid by Buyer, irrespective if the amount
               levied is based on the previous year's production or any other
               basis.

               (iii)  Where Seller owns one-hundred percent (100%) of the
               working interest under a well and there is no overhead charge for
               determining the overhead expense to be charged to Buyer on and
               after the Effective Date, the overhead charge shall be deemed to
               be five hundred dollars ($500.00) per month, or any part thereof,
               per well.

               (iv)  Each party shall be responsible for its own income taxes.

          (c)  With respect to matters that can be determined as of Closing,
          Seller shall prepare, in accordance with the provisions of this
          Agreement and with generally accepted accounting principles, a
          statement (the "Closing Settlement Statement") setting forth each
          adjustment to the Base Purchase Price to the best of Seller's
          knowledge, whether upward or downward, as may be required in
          accordance herewith.  Seller shall submit to Buyer the Closing
          Settlement Statement no later than five (5) days prior to the Closing
          Date and shall afford Buyer access to Seller's records pertaining to
          the computation of the Closing Settlement Statement. Prior to the
          Closing, Buyer and Seller will agree upon the adjustments stated
          therein to be made to the Purchase Price, or will specify the
          adjustments to which there are differences and the adjustments to be
          omitted therefrom.  Only the agreed upon adjustments shall be taken
          into account in computing the adjustments to be made to the Purchase
          Price at Closing.  Final adjustments to the Purchase Price to be made
          hereunder shall be made within one hundred-twenty (120) days after the
          Closing Date for all matters other than Asserted Defects according to
          (d) hereinbelow as follows:

          (d)  As soon as practicable after the Closing, and in no event later
          than sixty (60) days following the Closing Date, Seller shall deliver
          to Buyer, in accordance with the provisions of this Agreement and with
          generally accepted accounting principles, a statement ("Final
          Settlement Statement") setting forth each adjustment under this
          Agreement which was not determined as of the Closing.  Within sixty
          (60) days after Buyer's receiving the Final Settlement Statement, the
          Parties shall agree upon the adjustments and payments stated in such
          Final Settlement Statement, and the net of such adjustments and
          payments shall be paid in cash to the appropriate Party by the other
          Party within five (5) days following agreement as to the Final
          Settlement Statement.  If the Parties fail to reach agreement as to
          all adjustment within said sixty (60) day period, the net amount of
          all undisputed adjustments shall be paid and any remaining disputed
          items shall be submitted for determination by a nationally recognized
          firm of public accountants selected by the parties, whose decision
          shall be final and binding.  The parties shall share equally the costs
          of such determination.

     17.  ASSUMPTION AND INDEMNIFICATION. UPON DELIVERY TO AND 

                                       18


ACCEPTANCE BY BUYER OF THE ASSIGNMENT AND BILL OF SALE, BUYER SHALL BE DEEMED 
TO HAVE ASSUMED, TO PAY AND PERFORM TIMELY, ALL DUTIES, EXPENSES, 
OBLIGATIONS, LOSSES, HAZARDS AND LIABILITIES RELATING TO THE OWNERSHIP OR 
OPERATION OF THE PROPERTIES ARISING ON AND AFTER THE EFFECTIVE DATE 
(INCLUDING, WITHOUT LIMITATION, THOSE ARISING UNDER OR BY VIRTUE OF ANY 
LEASE, CONTRACT, AGREEMENTS, DOCUMENT, PERMIT OR RULE, OR DELAY IN OBTAINING 
APPROVAL OF FEDERAL OR STATE ASSIGNMENTS); AND, TO RELEASE, INDEMNIFY, 
DEFEND, AND HOLD HARMLESS THE SELLER GROUP FROM AND AGAINST ANY AND ALL 
CLAIMS, ACTIONS, LIABILITIES, LOSSES, DAMAGES, COSTS, OR EXPENSES (INCLUDING 
COURT COSTS AND ATTORNEYS' FEES) OF ANY KIND OR CHARACTER ARISING OUT OF OR 
OTHERWISE RELATING TO THE OWNERSHIP OR OPERATION OF THE PROPERTIES ON AND 
AFTER THE EFFECTIVE DATE. IN CONNECTION WITH (BUT NOT IN LIMITATION OF) THE 
FOREGOING, IT IS SPECIFICALLY UNDERSTOOD AND AGREED THAT MATTERS ARISING OUT 
OF OR OTHERWISE RELATING TO THE OWNERSHIP OR OPERATION OF THE PROPERTIES ON 
AND AFTER THE EFFECTIVE DATE SHALL BE DEEMED TO INCLUDE ALL MATTERS ARISING 
OUT OF THE STATUS AND THE CONDITION OF THE PROPERTIES ON THE EFFECTIVE DATE 
INCLUDING, WITHOUT LIMITATION, ALL OBLIGATIONS TO PROPERLY PLUG AND ABANDON 
WELLS LOCATED ON THE PROPERTIES, TO RESTORE THE SURFACE OF THE PROPERTIES TO 
AS NEAR ITS ORIGINAL CONDITION AS PRACTICABLE AND TO COMPLY WITH, OR BRING 
THE PROPERTIES INTO COMPLIANCE WITH, APPLICABLE ENVIRONMENTAL LAWS AND 
REGULATIONS, INCLUDING ALL LIABILITY AND EXPENSE FOR ANY RESTORATION, 
REMEDIATION, CLEAN-UP, DISPOSAL OF WASTE, OR REMOVAL THAT MAY BE INCURRED AS 
A RESULT OF THE EXISTENCE OR DISCOVERY OF NATURALLY OCCURRING RADIOACTIVE 
MATERIALS, OR OTHER HAZARDOUS OR DELETERIOUS SUBSTANCES IN, ON, UNDER OR 
ASSOCIATED WITH THE PROPERTIES, REGARDLESS OF WHEN THE EVENTS OCCURRED THAT 
GIVE RISE TO SUCH CONDITION, AND THE ABOVE PROVIDED FOR ASSUMPTIONS AND 
INDEMNIFICATIONS BY BUYER SHALL EXPRESSLY COVER AND INCLUDE SUCH MATTERS. THE 
FOREGOING ASSUMPTIONS AND INDEMNIFICATIONS SHALL APPLY WHETHER OR NOT SUCH 
DUTIES, OBLIGATIONS, OR LIABILITIES, OR SUCH CLAIMS, ACTIONS, CAUSES OF 
ACTION, LIABILITIES, DAMAGES, LOSSES, COSTS, OR EXPENSES ARISE OUT OF (i) 
NEGLIGENCE (INCLUDING SOLE NEGLIGENCE, SIMPLE NEGLIGENCE, CONCURRENT 
NEGLIGENCE, ACTIVE OR PASSIVE NEGLIGENCE, OR OTHERWISE, BUT EXPRESSLY NOT 
INCLUDING GROSS NEGLIGENCE OR WILLFUL MISCONDUCT) OF SELLER GROUP OR ANY 
OTHER INDEMNIFIED PARTY, OR (ii) STRICT LIABILITY.

     18.  ENVIRONMENTAL ASSESSMENT AND INDEMNIFICATION BY BUYER.  BUYER 
EXPRESSLY ACKNOWLEDGES THAT IT HAS MADE AN ENVIRONMENTAL ASSESSMENT OF THE 
PROPERTIES, OR WILL BE GIVEN THE OPPORTUNITY TO DO SO SUBJECT TO THE TERMS OF 
THIS AGREEMENT. BUYER HEREBY AGREES TO ASSUME THE RISKS THAT THE PROPERTIES 
MAY CONTAIN WASTE MATERIALS OR HAZARDOUS SUBSTANCES, AND THAT ADVERSE 
PHYSICAL CONDITIONS, INCLUDING BUT NOT LIMITED TO THE PRESENCE OF WASTE 
MATERIALS OR HAZARDOUS SUBSTANCES OR THE PRESENCE OF UNKNOWN ABANDONED OIL 
AND GAS WELLS, WATER WELLS, SUMPS AND PIPELINES, MAY EXIST IN, ON, OR UNDER 
THE PROPERTIES AS OF THE EFFECTIVE DATE, ALL RESPONSIBILITY AND LIABILITY 
RELATED TO ALL SUCH CONDITIONS, WHETHER KNOWN OR UNKNOWN, WILL BE TRANSFERRED 
FROM SELLER TO BUYER. BUYER ASSUMES FULL RESPONSIBILITY FOR, AND AGREES TO 
INDEMNIFY, HOLD HARMLESS AND DEFEND SELLER FROM AND AGAINST ALL LOSS, 
LIABILITY, CLAIMS, FINES, EXPENSES, COSTS (INCLUDING ATTORNEYS' FEES AND 
EXPENSES) AND CAUSES OF ACTION CAUSED BY OR ARISING OUT OF ANY FEDERAL, STATE 
OR LOCAL LAWS, RULES, ORDERS AND REGULATIONS 

                                       19


APPLICABLE TO ANY NATURALLY OCCURRING RADIOACTIVE MATERIALS, WASTE MATERIAL 
OR HAZARDOUS SUBSTANCES ON OR ASSOCIATED WITH THE PROPERTIES OR THE PRESENCE, 
DISPOSAL, RELEASE OR THREATENED RELEASE OF ALL NATURALLY OCCURRING 
RADIOACTIVE MATERIALS, WASTE MATERIAL OR HAZARDOUS SUBSTANCES FROM THE 
PROPERTIES INTO THE ATMOSPHERE OR INTO OR UPON LAND OR ANY WATER COURSE OR 
BODY OF WATER, INCLUDING GROUND WATER, WHETHER OR NOT ATTRIBUTABLE TO 
SELLER'S ACTIVITIES OR THE ACTIVITIES OF THIRD PARTIES (REGARDLESS OF WHETHER 
OR NOT SELLER WAS OR IS AWARE OF SUCH ACTIVITIES) PRIOR TO, DURING OR AFTER 
THE PERIOD OF SELLER'S OWNERSHIP OF THE PROPERTIES. THIS INDEMNIFICATION AND 
ASSUMPTION SHALL ALSO APPLY TO LIABILITY FOR VOLUNTARY ENVIRONMENTAL RESPONSE 
ACTIONS UNDERTAKEN PURSUANT TO THE COMPREHENSIVE ENVIRONMENTAL RESPONSE 
COMPENSATION AND LIABILITY ACT (CERCLA) OR ANY OTHER FEDERAL, STATE OR LOCAL 
LAW.

     19.  DISCLAIMER OF WARRANTIES.  THE PROPERTIES SHALL BE CONVEYED 
PURSUANT HERETO WITHOUT ANY WARRANTY OR REPRESENTATION WHATSOEVER, WHETHER 
EXPRESS, IMPLIED OR STATUTORY AS TO, DESCRIPTION, QUANTITY, QUALITY, FITNESS 
FOR A PARTICULAR PURPOSE, CONFORMITY TO THE MODELS OR SAMPLES OF MATERIALS, 
OR MERCHANTABILITY OF ANY EQUIPMENT OR ITS FITNESS FOR ANY PURPOSE, OR 
OTHERWISE. BUYER SHALL HAVE INSPECTED, OR WAIVED (AND AS OF THE DEFECT NOTICE 
DATE SHALL BE DEEMED TO HAVE WAIVED) ITS RIGHT TO INSPECT, THE PROPERTIES FOR 
ALL PURPOSES AND SATISFIED ITSELF AS TO THEIR PHYSICAL AND ENVIRONMENTAL 
CONDITION, BOTH SURFACE AND SUBSURFACE, INCLUDING, BUT NOT LIMITED TO, 
CONDITIONS SPECIFICALLY RELATED TO THE PRESENCE, RELEASE, OR DISPOSAL OF 
HAZARDOUS SUBSTANCES, SOLID WASTES, ASBESTOS, OR OTHER MANMADE FIBERS OR 
NATURALLY OCCURRING RADIOACTIVE MATERIALS ("NORM") IN, ON, OR UNDER THE 
PROPERTIES.  BUYER IS RELYING SOLELY UPON ITS OWN INSPECTION OF THE 
PROPERTIES, AND BUYER SHALL, EXCEPT AS PROVIDED OTHERWISE HEREIN, ACCEPT ALL 
OF THE SAME "AS IS, WHERE IS".  WITHOUT LIMITATION OF THE FOREGOING, SELLER 
MAKES NO WARRANTY OR REPRESENTATION, EXPRESS, IMPLIED, STATUTORY, OR 
OTHERWISE, AS TO THE ACCURACY OR COMPLETENESS OF ANY DATA, REPORTS, RECORDS, 
PROJECTIONS, INFORMATION, OR MATERIALS NOW, HERETOFORE, OR HEREAFTER 
FURNISHED OR MADE AVAILABLE TO BUYER IN CONNECTION WITH THIS AGREEMENT, 
INCLUDING, WITHOUT LIMITATION, PRICING ASSUMPTIONS OR QUALITY OR QUANTITY OF 
HYDROCARBON RESERVES (IF ANY) ATTRIBUTABLE TO THE PROPERTIES OR THE ABILITY 
OR POTENTIAL OF THE PROPERTIES TO PRODUCE HYDROCARBONS OR THE ENVIRONMENTAL 
CONDITION OF THE  PROPERTIES OR ANY OTHER MATTERS CONTAINED IN THE 
PROPRIETARY DATA OR ANY OTHER MATERIALS FURNISHED OR MADE AVAILABLE TO BUYER 
BY SELLER OR BY SELLER'S AGENTS OR REPRESENTATIVES.  ANY AND ALL SUCH DATA, 
RECORDS, REPORTS, PROJECTIONS, INFORMATION, AND OTHER MATERIALS (WRITTEN OR 
ORAL) FURNISHED BY SELLER OR OTHERWISE MADE AVAILABLE OR DISCLOSED TO BUYER 
ARE PROVIDED TO BUYER AS A CONVENIENCE AND SHALL NOT CREATE NOR GIVE RISE TO 
ANY LIABILITY OF OR AGAINST SELLER, AND ANY RELIANCE ON OR USE OF THE SAME 
SHALL BE AT BUYER'S SOLE RISK TO THE MAXIMUM EXTENT PERMITTED BY LAW.

     20.  BUYER'S COVENANT NOT TO SUE SELLER GROUP.  Except to enforce the 
provisions of this Agreement or the responsibilities and liabilities of 
Seller for claims, costs and expenses with respect to the Properties prior to 
the Effective Date according to Section 17., Buyer covenants not to sue 
Seller Group with regard to any claim or liability relating to the 
Properties, or this transaction, regardless of when or how the claim or 
liability arose or arises or whether the claim or liability was 

                                       20


foreseeable or unforeseeable.  BUYER'S COVENANT NOT TO SUE SELLER GROUP 
INCLUDES CLAIMS AND LIABILITIES RESULTING IN ANY WAY FROM THE NEGLIGENCE OR 
STRICT LIABILITY OF SELLER GROUP, WHETHER THE NEGLIGENCE OR STRICT LIABILITY 
IS ACTIVE, PASSIVE, JOINT, CONCURRENT OR SOLE.

     21.  COMMISSIONS.  Seller agrees to indemnify and hold harmless Buyer, 
its parent and subsidiary companies and other affiliates, and their 
directors, officers, employees, and agents from and against any and all 
claims, obligations, actions, liabilities, losses, damages, costs, or 
expenses (including court costs and attorneys' fees) of any kind or character 
arising out of or resulting from any agreement, arrangement, or understanding 
by, or on behalf of, Seller with any broker or finder in connection with this 
Agreement or the transaction contemplated hereby. Buyer agrees to indemnify 
and hold harmless Seller Group from and against any and all claims, 
obligations, actions, liabilities, losses, damages, costs, or expenses 
(including court costs and attorneys' fees) of any kind or character arising 
out of or resulting from any agreement, arrangement, or understanding by, or 
on behalf of, Buyer with any broker or finder in connection with this 
Agreement or the transaction contemplated hereby.

     22.  CASUALTY LOSS.  If the Properties are damaged by fire or other 
casualty prior to the Closing, this Agreement shall remain in full force and 
effect, and (unless Buyer and Seller shall otherwise agree) in such event as 
to each such damaged Property that Seller, in its sole discretion, elects not 
to repair, Buyer either may treat such Property as if it had an Asserted 
Defect or elect not to adjust the Purchase Price therefor.  If Buyer elects 
hereunder to treat the damaged Property as if it had an Asserted Defect, the 
procedure provided for in Section 11. shall apply to such Property, and all 
rights to insurance proceeds and claims against third parties related thereto 
shall belong to Seller.  If Buyer elects hereunder not to adjust the Purchase 
Price for such damaged Property, and if Seller is entitled to any claims 
under an insurance policy with respect to such damage, Seller shall either 
collect and pay over, or assign, such insurance claims to Buyer. Buyer shall 
then take title to such Property without reduction of the Purchase Price.  If 
Seller elects to repair a damaged Property, all rights to insurance proceeds 
and claims against third parties related thereto shall belong to Seller.

     23.  NOTICES.  All notices and other communications required or 
permitted under this Agreement shall be in writing, unless otherwise 
specifically provided herein, and shall be delivered by recognized commercial 
courier or delivery service (which provides a receipt), by facsimile (with 
receipt acknowledged), or by registered or certified mail (postage prepaid), 
at the following addresses:

     If to Buyer:   Continental Resources, Inc.
                    P.O. Box 1032
                    Enid, Oklahoma 73702
                    Attn: Land Manager
                    Fax No. (405) 548-5182

     If to Seller:  Bass Enterprises Production Co.
                    210 Main Street
                    Fort Worth, Texas 76102
                    Attn: W. Frank McCreight
                    Fax No. (817) 390-8893

All such notices and communications shall be considered delivered on the date 
of receipt. Buyer or Seller may specify as its proper address any other 
address within the continental United States by giving notice to the other 
party, in the manner provided in this Section.

     24.  SURVIVAL OF PROVISIONS.  All representations, warranties, and 
indemnifications made herein, except as to any warranty of title by Seller, 
shall survive the Closing and the delivery of the Assignment and Bill of 
Sale. All obligations hereunder not satisfied at Closing shall survive 
Closing and delivery of the Assignment and Bill of Sale to the extent the 
Parties intend for such 

                                       21


obligations to be satisfied after Closing.  Buyer shall have until the Defect 
Notice Date in which to satisfy itself as! to the quantity and quality of 
Seller's title to the Properties.

     25.  MISCELLANEOUS MATTERS.

          (a)  FURTHER ASSURANCES.  After the Closing, Seller and Buyer shall
          execute and deliver, and shall otherwise cause to be executed and
          delivered, from time to time, such further instruments, notices,
          division orders, transfer orders, and other documents, and do such
          other and further acts and things as may be reasonably necessary more
          fully and effectively to grant, convey, and assign the Properties to
          Buyer.

          (b)  ASSIGNABILITY.  Except as provided below, neither party shall
          have the right to assign its rights under this Agreement without the
          prior written consent of the other party, and any such assignment in
          violation of this provision shall be void.

          (c)  GAS BALANCES.  Seller represents that there are no gas imbalances
          or make-up obligations affecting or relating to any of the properties.

          (d)  WAIVER AND REPRESENTATION:  TO THE EXTENT APPLICABLE TO THE
          TRANSACTION CONTEMPLATED HEREBY, OR ANY PORTION THEREOF, BUYER WAIVES
          THE PROVISIONS OF THE TEXAS DECEPTIVE TRADE PRACTICES ACT, CHAPTER 17,
          SUBCHAPTER E, SECTIONS 17.41 THROUGH 17.63, INCLUSIVE (OTHER THAN
          SECTION 17.555 WHICH IS NOT WAIVED), TEXAS BUSINESS AND COMMERCE CODE.
          In connection with such waiver, Buyer hereby represents and warrants
          to Seller that Buyer (a) is in the business of seeking or acquiring by
          purchase or lease, goods or services for commercial or business use,
          (b) has assets of Twenty Five Million Dollars ($25,000,000.00) or more
          according to its most recent financial statement, (c) has knowledge
          and experience in financial and business matters that enable it to
          evaluate the merits and risks of the transaction contemplated hereby,
          and (d) is not in a significantly disparate bargaining position.

          (e)  CONFIDENTIALITY AGREEMENT.  Until Closing, any Confidentiality
          Agreement executed by Buyer and Seller in connection with the
          transaction contemplated hereby remains in full force and effect and
          is not superseded or modified by this Agreement.

          (f)  PRIOR ENTIRE UNDERSTANDING/HEADINGS/GENDER.  This Agreement
          contains the entire understanding of the parties hereto with respect
          to the subject matter hereof and supersedes all prior agreements,
          understandings, negotiations, and discussions among the parties with
          respect to such subject matter, except as provided above with respect
          to any Confidentiality Agreement. The headings contained in this
          Agreement are for convenience only and shall not control or affect the
          meaning or construction of any provision of this Agreement.  Within
          this Agreement, words of any gender shall be held and construed to
          cover any other gender, and words in the singular shall be held and
          construed to cover the plural, unless the context otherwise requires. 
          Time is of the essence in this Agreement.

          (g)  AMENDMENTS.  This Agreement may be amended, modified,
          supplemented, restated, or discharged (and provisions hereof may be
          waived) only by an instrument executed by both Parties.

          (h)  ASSOCIATED EXPENSES.  Each party shall bear and pay all expenses
          it incurred and that are associated with the transaction contemplated
          by this Agreement.  Payment of recording fees, filing fees,
          documentary stamp taxes, all sales taxes (if any, plus penalty and
          interest) and any other fees and taxes imposed on the Properties on
          and after the Effective Date, excluding Seller's income taxes, shall
          be 

                                       22


          paid by Buyer.

          (i)  SUCCESSORS AND ASSIGNS.  This Agreement shall be binding on the
          parties hereto and their respective heirs, successors,
          representatives, and assigns.

          (j)  COUNTERPARTS.  This Agreement may be executed in any number of
          counterparts, each of which shall be deemed an original, but all of
          which shall constitute one (1) and the same instrument.  It shall not
          be necessary for both parties to sign the same counterpart.

          (k)  ENFORCEABILITY.  WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF
          LAW, THIS AGREEMENT SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH
          AND GOVERNED BY THE LAWS OF THE STATE OF TEXAS APPLICABLE TO CONTRACTS
          MADE AND TO BE PERFORMED ENTIRELY WITHIN SUCH STATE AND BY THE LAWS OF
          THE UNITED STATES OF AMERICA, EXCEPT THAT, TO THE EXTENT THE LAW OF A
          STATE IN WHICH THE PROPERTIES ARE LOCATED NECESSARILY GOVERNS, THE LAW
          OF SUCH STATE SHALL, TO SUCH EXTENT, APPLY TO THE PROPERTIES.

          (l)  PUBLICITY.  Prior to Closing, Buyer shall not issue any publicity
          or press release concerning this Agreement or the transaction
          contemplated hereby without the prior written consent of Seller
          unless, in the written opinion of legal counsel acceptable to Seller,
          such disclosure is required by applicable law or other applicable
          rules or regulations of any governmental authority or stock exchange
          and such publicity or press release contains no more than the minimum
          information necessary to comply therewith.

          (m)  USE OF SELLER'S NAME.  Buyer agrees that, as soon as practicable
          after the Closing, it shall remove or cause to be removed the names
          and signs used by Seller, and all variations and derivatives thereof
          and logos relating thereto from the Properties and shall not
          thereafter make any use whatsoever of such names, signs, and logos. 
          After Closing and as to those Properties Buyer has taken over as
          operator, Seller reserves the right of access to confirm that Buyer
          has removed Seller's name, signs, and logos.  If Seller is forced to
          remove its name, signs, and logos because Buyer has failed to do so,
          Seller shall charge its costs to Buyer and Buyer shall pay Seller's
          invoice within fifteen (15) days of receipt.

          (n)  SEVERABILITY.  If any term or provision of this Agreement is
          determined to be invalid, illegal, or incapable of being enforced by
          any rule of law or public policy, all other conditions and provisions
          of this Agreement shall nevertheless remain in full force and effect
          so long as the economic or legal substance of the transactions
          contemplated hereby is not affected in any material fashion to either
          Buyer or Seller.  Upon such determination that any term or other
          provision is invalid, illegal, or incapable of being enforced, Buyer
          and Seller shall negotiate in good faith to modify this Agreement so
          as to effect the original intent of the Parties as closely as possible
          in an acceptable manner to the end that the transactions contemplated
          hereby are fulfilled to the extent possible.

          (o)  RESERVATION OF CLAIMS.  Seller reserves all rights to claims,
          demands, cause of action, and lawsuits concerning the Properties
          against third parties that accrued before the Effective Date, whether
          discovered before or after the Effective Date, excluding any rights or
          claims associated with gas imbalances.

          (p)  DUTY TO DEFEND.  Where a party ("indemnitor") has agreed to
          indemnify, defend, and hold the other party ("indemnitee") harmless
          under this Agreement the indemnitee, at its sole option if it is the
          sole defendant, may elect to (a) manage its 

                                       23


          own defense, in which event the indemnitor will reimburse the 
          indemnitee for all attorney's fees, court, and other costs 
          reasonably incurred in defending a claim, upon delivery to the 
          indemnitor of invoices for such expenses; or (b) allow the 
          indemnitor to be responsible for all aspects of defense.  If both 
          parties are defendants in a claim, they shall reasonably endeavor 
          to arrange for joint defense to minimize defense costs, but 
          failure to reach such agreement shall in no event eliminate or 
          limit any indemnity obligations hereunder.

          (q)  EXHIBITS.  All exhibits referenced herein and attached hereto are
          by reference incorporated into this Agreement.

     IN WITNESS WHEREOF, this Agreement is executed by the parties hereto on the
date set forth above, but effective as of the Effective Date.

                              SELLERS

                              BASS ENTERPRISES PRODUCTION CO.


                              By:  /s/ W. FRANK MCCREIGHT
                                   -----------------------------------
                                       W. Frank McCreight
                                       Vice President

                              PERRY R. BASS, INC.,
                              SID R. BASS, INC.,
                              LEE M. BASS, INC.,
                              KEYSTONE, INC.,
                              THRU LINE INC.


                              By:  /s/ W. FRANK MCCREIGHT
                                   -----------------------------------
                                       W. Frank McCreight
                                       Vice President of all named corporations

                              GOLIAD PARTNERS, L.P.
                              By its Managing Partners
                              PRB-GP, Inc.
                              LMB-GP, Inc.
                              WPH-GP, Inc.


                              By:  /s/ W. FRANK MCCREIGHT
                                   -----------------------------------
                                       W. Frank McCreight
                                       Vice President of all named corporations

                              THE BASS MANAGEMENT TRUST


                              By:  /s/ PERRY R. BASS
                                   -----------------------------------
                                       Perry R. Bass, Trustee

                              SID R. BASS, MANAGEMENT TRUST


                              By:  /s/ SID R. BASS
                                   -----------------------------------
                                       Sid R. Bass, Trustee


                                       24


                              By:  /s/ LEE M. BASS
                                   -----------------------------------
                                       Lee M. Bass

                              D W  GENPAR, INC.


                              By:  /s/ W. FRANK MCCREIGHT
                                   -----------------------------------
                                       W. Frank McCreight
                                       Vice President

                              W D. PARTNERS, L. P.
                              By DW Genpar, Inc., General Partner

                              By:  /s/ W. FRANK MCCREIGHT
                                   -----------------------------------
                                       W. Frank McCreight
                                       Vice President

                              WPH-GP, INC.


                              By:  /s/ W. FRANK MCCREIGHT
                                   -----------------------------------
                                          W. Frank McCreight
                                          Vice President

                              WORLAND ASSOCIATES, Texas General Partnership
                              By: Sid R. Bass, Inc. Managing Partner


                              By:  /s/ W. FRANK MCCREIGHT
                                   -----------------------------------
                                          W. Frank McCreight
                                          Vice President

                              WORLAND ASSOCIATES II
                              By: Sid R. Bass, Inc. Managing Partner


                              By:  /s/ W. FRANK MCCREIGHT
                                   -----------------------------------
                                          W. Frank McCreight
                                          Vice President

                              BUYER

                              CONTINENTAL RESOURCES, INC.


                              By:  /s/ HAROLD HAMM
                                   -----------------------------------
                                       Harold Hamm
                                       President


                                       25