ABRAXAS PETROLEUM CORP
8-K, 2000-04-06
CRUDE PETROLEUM & NATURAL GAS
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION



                             Washington, D.C. 20549



                                  F O R M 8 - K

                                 CURRENT REPORT

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



                                 Date of Report
                                  April 6, 2000



                          Abraxas Petroleum Corporation
             (Exact name of registrant as specified in its charter)


                                     Nevada
                 (State of other jurisdiction of incorporation)





0-19118                                               74-2584033
- --------------------------                     ------------------------
(Commission File Number)                           (I.R.S. Employer
                                                 Identification Number)




                        500 N. Loop 1604 East, Suite 100
                            San Antonio, Texas 78232
                    (Address of principal executive offices)

               Registrant's telephone number, including area code:
                                  210-490-4788


<PAGE>

Item 2. Acquisition of Disposition of Assets

         On March 31, 2000, Abraxas Petroleum Corporation ("Abraxas") sold a
group of non-core assets held by Abraxas Wamustter L.P. a limited patnership of
which a subsidiary of Abraxas in the generaal partner, as well as other
contiguous assets owned by Abraxas to Sampson Resources Company.. The assets
were sold based on a bid prosess. Abraxas received approximately $34 million in
cash for it's interest, subject to certain post closing adjustments. The sale
included interest in 57 natural gas wells and gross leasehold of approximately
15,000 acres.

Item 7. FINANCIAL STATEMENTS AND EXHIBITS

         7(b) Unaudited Pro Forma Financial Statements

            (1) Pro Forma Condensed Balance Sheet as of December 31, 1999.

            (2) Pro Forma Statement of Operations for the year ended December
                31, 1999.


         The following exhibits are filed as part of this report:

NUMBER                                                        DOCUMENT
10.1                                        Purchase and Sale Agreement

99.1                                        Press release dated March 31, 2000.


<PAGE>




                                   SIGNATURES


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

                          ABRAXAS PETROLEUM CORPORATION



                            By:      ___________________________________
                                     Chris Williford
                                     Executive Vice President, Chief Financial
                                     Officer and Treasurer


Dated:   April 6, 2000
<PAGE>
                    PRO FORMA FINANCIAL INFORMATION

The following unaudited pro forma condensed consolidated balance sheet as of
December 31, 1999 and the unaudited pro forma consolidated statements of
operations for the year ended December 31, 1999 give effect to the sale of non-
core properties described in Item 2. The unaudited pro forma condensed
consolidated balance sheet is presented as if the transaction had occurred on
December 31, 1999. The unaudited pro forma consolidated statement of operations
is presented as if the transaction had occurred on January 1, 1999. The
unaudited pro forma information is presented for illustrative purposes only and
may not be indicative of the results that would have been obtained had the
transaction actually occurred on the dates assumed, nor is it necessarily
indicative of the future consolidated results of operations.







<PAGE>
<TABLE>
<CAPTION>
                          ABRAXAS PETROLEUM CORPORATION
                   UNAUDITED PRO FORMA CONDENSED BALANCE SHEET
                             As of December 31, 1999


                                                          Abraxas
                                                        Petroleum         Pro-forma
                                                        Corporation      adjustments       Pro Forma
                                                      ---------------  ----------------  -------------
                                                                   (dollars in thousands)
Assets:
<S>                                                      <C>                 <C>           <C>
  Cash.............................................      $   3,799           31,232 (1)    $    35,031
  Accounts receivable..............................         14,352               --             14,352
  Other............................................            878               --                878
                                                       -------------- ------------------ --------------
         Total current assets......................         19,029           31,232             50,261
Property and equipment.............................        514,353               --            514,353
Less accumulated DD&A..............................        219,687               --            219,687
                                                       -------------- ------------------ --------------
  Net property and equipment.......................        294,666               --            294,666
Deferred financing fees............................          7,711               --              7,711
Restricted cash....................................             --            3,250 (1)          3,250
Other assets.......................................            878             (499) (2)           379
                                                       ============== ================== ==============
         Total assets..............................      $ 322,284     $     33,983        $   356,267
                                                       ============== ================== ==============

Liabilities and stockholders' equity (deficit):
         Total current liabilities.................      $  26,334     $          --       $    30,696

Long-term debt.....................................        273,421                --           269,608
Deferred income taxes..............................         16,935                --            27,429
Minority interest..................................         10,496                --            10,286
Future site restoration............................          4,603                --             4,374
Stockholders' equity (deficit):
  Common stock.....................................            227                --               226
  Additional paid-in capital.......................        127,562                --           128,125
  Accumulated deficit..............................       (139,825)           33,983 (3)      (105,842)
  Treasury stock...................................         (1,071)               --            (1,071)
  Accumulated other comprehensive income...........          3,602                --            (2,886)
                                                       -------------- ------------------ --------------
         Total stockholders' equity (deficit)......         (9,505)           33,983            24,478
                                                       ============== ================== ==============
         Total liabilities and stockholders' equity
         (deficit).................................      $ 322,284     $      33,983       $   356,267
                                                       ============== ================== ==============

</TABLE>
             See notes to unaudited pro forma financial information.



<PAGE>
<TABLE>
                         ABRAXAS PETROLEUM CORPORATIOIN
                               UNAUDITED PRO FORMA
                             STATEMENT OF OPERATIONS
                      For the Year Ended December 31, 1999

                                                    Abraxas
                                                   Petroleum        Pro-Forma
                                                  Corporation      adjustments        Pro Forma
                                                ---------------   ---------------- ---------------

                                                  (dollars in thousands, except per share data)
<S>                                                <C>                                <C>
Revenue:
  Oil and gas production revenues..........        $   59,025              --         $   59,025
  Gas processing revenues..................             4,244              --              4,244
  Rig revenues.............................               444              --                444
  Other revenues...........................             3,057              --              3,057
                                                ---------------- ----------------- ----------------
         Total revenue.....................            66,770              --             66,770
Operating costs and expenses:
  Lease operating and production taxes.....            17,938              --             17,938
  Depreciation, depletion and amortization.            34,811              --             34,811
  Proved property impairment...............            19,100              --             19,100
  Rig operations...........................               624              --                624
  General and administrative expense.......             5,269             597 (1)          5,866
                                                ---------------- ----------------- ----------------
         Total operating expenses..........            77,742             597             78,339
                                                ---------------- ----------------- ----------------
Operating income (loss)....................           (10,972)           (597)           (11,569)
Other (income) expense:
  Interest income..........................              (666)             --               (493)
  Amortization of deferred financing fee...             1,915              --              1,915
  Interest expense.........................            36,815              --             36,815
  Other income.............................               --          (33,983) (2)       (33,983)
                                                ---------------- ----------------- ----------------
         Total other expenses..............            38,064         (33,983)              4,081
                                                ---------------- ----------------- ----------------
Income (loss) before tax...................           (49,036)         33,386            (15,650)
Income tax (expense) benefit:
  Current..................................              (491)             --               (491)
  Deferred.................................            13,116              --             13,116
Minority interest income (loss)............               269              --                269
                                                ---------------- ----------------- ----------------
Net (loss) applicable to common stockholders       $  (36,680)      $  33,386         $   (3,294)
                                                ================ ================= ================
Net (loss) per share.......................        $    (5.41)             --         $    (0.49)
                                                ================ ================= ================

</TABLE>


             See notes to unaudited pro forma financial information



<PAGE>


Notes to Unaudited Pro Forma Balance Sheet as of December 31, 1999 assuming that
transaction occurred on December 31, 1999.

(1)      Proceeds from sale of assets.
(2)      Cost basis of assets sold.
(3)      Gain on sale.

Notes to Unaudited Pro Forma Statement of Operations for the year ended December
31, 1999 assuming that transaction occurred on January 1, 1999.

(1)      Reversal of overhead reimbursement received from partnership.
(2)      Gain on sale of assets.




<PAGE>


                                                                   Exhibit 99.1

                                  NEWS RELEASE

FOR IMMEDIATE RELEASE               www.abraxaspetroleum.com

FOR MORE INFORMATION CONTACT:
CHRIS WILLIFORD, EVP/CFO

                 ABRAXAS PETROLEUM CORPORATION NETS $34 MILLION
                        ON SALE OF CERTAIN WYOMING ASSETS

SAN ANTONIO, TX - (March 31, 2000) - Abraxas Petroleum Corporation (OTC Bulletin
Board: AXAS) announced today the sale of a group of non-core properties, the
assets held by Abraxas Wamsutter L.P., as well as certain other contiguous
assets. Abraxas received approximately $34 million in cash for its interests,
subject to certain post closing adjustments, further strengthening Abraxas'
balance sheet. The sale will result in Abraxas booking a gain in the first
quarter 2000 of $33 million with a corresponding increase in book equity.
Proceeds will be used to fund Abraxas' 2000 capital expenditure program which is
focused primarily on horizontal exploitation of existing properties.

The sale validates Abraxas' joint venture approach to non-core properties.
Abraxas owned a 1% interest in Abraxas Wamsutter L.P. which under the terms of
the partnership agreement, increased as certain rate of return requirements of
the L.P. were satisfied. As a result of the sale, the receipt of Abraxas'
back-in value for these properties was greatly accelerated.

The sale included interests in 57 natural gas wells and gross leasehold of
approximately 15,000 acres. The properties are located in Sweetwater and Carbon
Counties, Wyoming. The buyer of the properties is Samson Resources Company, a
private Tulsa, Oklahoma-based oil and gas company. Abraxas originally sold these
properties to Abraxas Wamsutter L.P. in November 1998.

Abraxas Petroleum Corporation is a San Antonio-based crude oil and natural gas
exploration and production company that also processes natural gas. It operates
primarily along the Texas Gulf Coast, in the Permian Basin of western Texas,
western Canada and Wyoming.

Safe Harbor for forward-looking statement: Statements in this release looking
forward in time involve known and unknown risks and uncertainties, which may
cause the Company's actual results in future periods to be materially different
from any future performance suggested in this release. Such factors may include,
but may not be necessarily limited to, changes in the prices received by the
Company for crude oil and natural gas. In addition, the Company's future crude
oil and natural gas production is highly dependent upon the Company's level of
success in acquiring or finding additional reserves. Further, the Company
operates in an industry sector where securities values are highly volatile and
may be influenced by economic and other factors beyond the Company's control. In
the context of forward-looking information provided for in this release,
reference is made to the discussion of risk factors detailed in the Company's
filing with the Securities and Exchange Commission during the past 12 months.



<PAGE>


                                                                  EXHIBIT 10.1
                           PURCHASE AND SALE AGREEMENT

         THIS PURCHASE AND SALE AGREEMENT (this "Agreement"), dated as of March
6, 2000 is among Abraxas Wamsutter L.P., a Texas limited partnership
("Wamsutter"), Abraxas Petroleum Corporation, a Nevada corporation ("Abraxas"
and, together with Wamsutter, "Seller"), each with offices at 500 North Loop
1604 East, Suite 100, San Antonio, Texas, 78232, and Samson Resources Company,
an Oklahoma corporation ("Buyer"), with offices at Samson Plaza, Two West Second
Street, Tulsa, Oklahoma, 74103-3103, Seller and Buyer are sometimes hereinafter
collectively called the "Parties" and individually called a "Party."

WHEREAS, Seller desires to sell, and Buyer desires to purchase, upon and subject
to the terms, conditions, reservations and exceptions hereinafter set forth,
Seller's interest in and to certain oil and gas properties and other assets
related thereto as further described hereinafter;

NOW THEREFORE, for and in consideration of the covenants and agreements herein
contained and other good and valuable consideration, the receipt and sufficiency
of which are hereby acknowledged, Seller and Buyer agree as follows:

ARTICLE 1. PROPERTY DESCRIPTION

1.1      The Interests. Subject to the terms, conditions, reservations and
         exceptions set forth in this Agreement, Seller shall sell, transfer,
         assign, convey and deliver unto Buyer, and Buyer shall purchase,
         receive, pay for and accept, as of 7:00 a.m. local time where the
         properties are located, January 1, 2000 (the "Effective Date"), all of
         Seller's right, title and interest in and to the following:

         1.1.1      the undivided interest set forth in Exhibit A, Schedule I
                    attached hereto and made a part hereof for all purposes,
                    together with all of Seller's other right, title and
                    interest in and to the oil, gas and mineral leases and other
                    interests in oil and gas described in Exhibit A, Schedule
                    II, including mineral, royalty and overriding royalty
                    interests, and all rights, privileges and obligations
                    appurtenant to those interests and leases INSOFAR AND ONLY
                    INSOFAR AS those interests and leases cover and include the
                    lands, depths and rights described in Exhibit A, Schedule II
                    hereto (the "Leases");

         1.1.2      all rights and interests in any unit or pooled area in which
                    the Leases are included, to the extent that these rights and
                    interests arise from and are associated with the Leases,
                    including without limitation all rights derived from any
                    unitization, pooling, operating, communitization or other
                    agreement or from any declaration or order of any
                    governmental authority;

         1.1.3      all oil, gas and condensate wells (whether producing, not
                    producing or abandoned), water source, water injection and
                    other injection or disposal wells and systems located on the
                    Leases or lands unitized or pooled with the Leases;

         1.1.4      all equipment, facilities, pipelines, pipeline laterals,
                    gathering systems, platforms, well pads, tank batteries,
                    improvements, fixtures, inventory, spare parts, tools,
                    materials and other personal property on the Leases or used
                    in developing or operating the Leases or producing,
                    treating, storing, compressing, processing or transporting
                    hydrocarbons on or from the Leases other than that
                    specifically designated as retained property in Exhibit B or
                    excluded from the Interests in Section 1.2 hereof (the
                    "Equipment");

         1.1.5      to the extent assignable or transferable and except to the
                    extent any of the following are attributable or allocable to
                    rights and interests retained by Seller, if any, all
                    easements, rights-of-way, licenses, permits, servitudes,
                    surface leases, and similar interests applicable to or used
                    in operating the Leases, the lands unitized or pooled with
                    the Leases or the Equipment, as set forth in Exhibit A,
                    Schedule III hereto;

         1.1.6      to the extent assignable or transferable, all contracts and
                    contractual rights, obligations and interests relating to
                    the Leases or the lands unitized or pooled with the Leases,
                    or the Equipment, including, without limitation, unit
                    agreements, farmout agreements, farm-in agreements,
                    operating agreements, and hydrocarbon sales, purchase,
                    gathering, transportation, treating, marketing, exchange,
                    processing and fractionating agreements, surface leases,
                    operating agreements, whether of record or not, as described
                    in Exhibit A, Schedule IV hereto (the "Contracts");

         1.1.7      Any fee mineral interests described in Exhibit A, Schedule V
                    (the "Fee Mineral Interests"), including without limitation
                    all rights and obligations pertaining to the Fee Mineral
                    Interests under any of the Contracts;

         1.1.8      Any fee surface interests described in Exhibit A, Schedule
                    VI (the "Fee Surface Interests"), including without
                    limitation all rights and obligations pertaining to the Fee
                    Surface Interests under any of the Contracts

         1.1.9      (a) All of Seller's right, title and interest in and to
                    those certain Credit Payments representing Section 29 Tax
                    Credits attributable to the oil and gas leases located in
                    Carbon and Sweetwater Counties, Wyoming, more particularly
                    described in Exhibit A, Schedule VII attached hereto and
                    incorporated herein, insofar as the leases cover the right
                    to produce certain wells identified in Exhibit A, Schedule
                    VIII, attached hereto and incorporated herein, from certain
                    identified tight sands formations, which Credit Payments
                    were originally agreed to be paid to Dalen Resources Oil &
                    Gas Co. ("Dalen"), predecessor in interest to Abraxas, by
                    Tgas Investments, LLC ("Tgas") under the terms of that
                    certain Purchase and Sale Agreement dated August 1, 1995,
                    pertaining to the leases and wells identified in Exhibit A,
                    Schedules VII and VIII hereto; and

         (b)        All of Seller's right, title and interest, if any, in and to
                    the oil and gas leases described in Exhibit A, Schedule VII,
                    insofar only as said leases cover and pertain to the wells
                    set forth in Exhibit A, Schedule VIII.

         and

         1.1.10     all other tangibles, miscellaneous interests or other assets
                    on or used in connection with the Leases, Equipment and/or
                    Contracts, including, without limitation, all lease files,
                    land files, well files, production records, division order
                    files, abstracts, title opinions, and contract files,
                    insofar as they are directly related to the items described
                    in Sections 1.1.1 through 1.1.9 hereof.

Seller's interests in the assets described in Sections 1.1.1 through 1.1.10
above are hereinafter collectively called the "Interests".

1.2      Exclusions from the Interests. The Interests to be conveyed and
         assigned under this Agreement do not include:
         -----------------------------

         1.2.1 All of Seller's  interest  in and to the leases,  lands and other
interests described in Exhibit A, Schedule IX;

         1.2.2     Seller's intellectual property used in developing or
                   operating the Interests, computer software, 3-D seismic and
                   computer software licensed from third parties, patents, trade
                   secrets, copyrights, names, marks and logos, all of which
                   Seller will remove before or as soon as possible after
                   Closing;

         1.2.3     Trade credits and rebates from contractors and vendors,
                   accounts and notes receivable, and adjustments or refunds
                   attributable to Seller's interest in the Interests that
                   relate to any period before the Effective Date, including
                   without limitation transportation tax credits and refunds,
                   tariff refunds, take-or-pay claims, insurance premium
                   adjustments, and audit adjustments under the Contracts;

         1.2.4    Deposits,   cash,  checks  in  process  of  collection,   cash
                  equivalents  and  funds  attributable  to  Seller's  Interests
                  pertaining to any periods before the Effective Date;

         1.2.5     All test units and all leased vehicles and equipment for
                   which Buyer does not assume the applicable lease under this
                   Agreement; and all third party equipment and property located
                   on the Leases, including without limitation contractor
                   equipment.

1.3      Ownership of Production from the Interests Prior to the Effective Date.

         (i)       Seller will own all merchantable oil, gas, condensate and
                   distillate ("Hydrocarbons") produced from the Interests
                   before the Effective Date. If, on the Effective Date,
                   Hydrocarbons produced from the Interests before the Effective
                   Date are stored in the Leases or unit stock tanks (the "Stock
                   Tank Oil"), or in Leases or unit gathering lines or
                   production facilities upstream of the sale or custody
                   transfer meters of the purchaser or processor of Hydrocarbon
                   production from the Interests (the Pipeline Inventory"),
                   Buyer shall purchase from Seller the merchantable Stock Tank
                   Oil above pipeline connections in the stock tanks and the
                   Pipeline Inventory at the price of $25.39 per barrel, less
                   severance taxes and royalties. Buyer shall pay Seller for the
                   Stock Tank Oil and Pipeline Inventory as an adjustment to the
                   Sale Price at Closing, as provided in Section 2.2 hereof.

         (ii)      The Stock Tank Oil and the Pipeline Inventory will be gauged
                   and measured as of 7:00 a.m. local time where the Interests
                   are located on the Effective Date. Seller and Buyer will
                   accept the Lease or unit operator's tank gauge readings,
                   meter tickets or other inventory records of the Stock Tank
                   Oil and Pipeline Inventory.

1.4      Ownership of Production from the Interests After the Effective Date.
         Buyer will own all Hydrocarbons produced from the Interests on and
         after the Effective Date. Seller will sell, on Buyer's behalf, all
         Hydrocarbons produced from the Interests between the Effective Date and
         the Closing Date (as hereinafter defined), and Seller will credit Buyer
         for the proceeds of those sales as an adjustment at Closing, as
         provided in Section 2.2 hereof. Subject to any continuing sales
         obligations under the Contracts, Buyer may sell Hydrocarbons produced
         from the Interests on and after the Closing Date as it deems
         appropriate.


ARTICLE 2.  CONSIDERATION

2.1      Sale Price.

         2.1.1      Amount Due at Closing

                   (i)     At Closing (as hereinafter defined), Buyer shall pay
                           to Seller the cash sum of $127,385,590.00 for the
                           Interests (the "Sale Price"), adjusted by the Earnest
                           Money pursuant to Section 2.1.3 and the Closing
                           adjustments specified in Section 2.2 hereof and
                           further adjusted by the post-Closing adjustments
                           specified in Section 2.3 hereof.

                   (ii)    The Sale Price shall be paid to Seller by wire
                           transfer to a bank account to be designated by Seller
                           in accordance with written instructions to be
                           provided by Seller to Buyer no later than three (3)
                           business days prior to the Closing.

         2.1.2     Allocated Values. As shown on Schedule 2.1.2, Buyer has
                   allocated the values ("Allocated Values") to the Interests
                   for the purposes of this Agreement.

         2.1.3     Earnest Money. Upon the execution of this Agreement, Buyer
                   shall pay to Wamsutter an earnest money deposit (the "Earnest
                   Money") in the amount of $10,000,000.00 to assure Buyer's
                   performance under this Agreement. If Seller and Buyer close
                   the transaction contemplated by this Agreement, the Earnest
                   Money will be applied to the Sale Price. If Buyer and Seller
                   fail to close the transaction contemplated by this Agreement,
                   Seller and Buyer will have the respective rights and
                   obligations with respect to the Earnest Money set forth in
                   Article 6 hereof.

2.2      Adjustments at Closing

         2.2.1     Preliminary Settlement Statement. At Closing, the Sale Price
                   will be adjusted as set forth in Sections 2.2.2 and 2.2.3. No
                   later than three (3) business days prior to Closing, Seller
                   will provide to Buyer a preliminary settlement statement
                   identifying all adjustments to the Sale Price to be made at
                   Closing (the "Preliminary Settlement Statement"). Seller and
                   Buyer acknowledge that some items in the Preliminary
                   Settlement Statement may be estimates or otherwise subject to
                   change in the Final Settlement Statement for the Interests to
                   be prepared pursuant to Section 2.3 hereof.

         2.2.2     Upward Adjustments. The Sale Price will be increased by the
                   following expenses and revenues:

                    (i)    all production expenses, operating expenses, overhead
                           expenses under applicable operating agreements and
                           capital expenditures paid or incurred by Seller in
                           connection with the Interests (including, without
                           limitation, royalties, minimum royalties, rentals and
                           prepaid charges), to the extent they are attributable
                           to operation of the Interests on and after the
                           Effective Date;

                    (ii)   any proceeds for the sale of Hydrocarbons and other
                           income from the Interests received by Buyer, to the
                           extent they are attributable to the operation of the
                           Interests before the Effective Date;

                    (iii)  the value of the Stock Tank Oil and the Pipeline
                           Inventory as provided in Section 1.3 hereof; and

                    (iv)   any other increases in the Sale Price specified in
                           this Agreement.

         2.2.3     Downward Adjustments. The Sale Price will be decreased by the
                   following expenses and revenues:

                    (i)    all actual production expenses, operating expenses,
                           overhead under applicable operating agreements and
                           capital expenditures paid or incurred by Buyer in
                           connection with the Interests (including, without
                           limitation, royalties, minimum royalties, rentals,
                           and prepaid charges), to the extent they are
                           attributable to operation of the Interests before the
                           Effective Date;

                    (ii)   any proceeds for the sale of Hydrocarbons and other
                           income received by Seller from the Interests, to the
                           extent they are attributable to the operation of the
                           Interests on and after the Effective Date; and

                    (iii)  Any other decreases in the Sale Price specified in
                           this Agreement.

2.3     Adjustments After Closing.

         2.3.1     Final Settlement Statement. Within one hundred twenty (120)
                   days after Closing, Seller will prepare a final settlement
                   statement for the interests containing a final reconciliation
                   of the adjustments to the Sale Price specified in Section 2.1
                   (the "Final Settlement Statement"). However, the failure of
                   Seller to complete the Final Settlement Statement within 120
                   days after Closing will not constitute a waiver of any right
                   to an adjustment otherwise due. Buyer will have thirty (30)
                   days after receiving the Final Settlement Statement to
                   provide Seller with written exceptions to any items in the
                   Final Settlement Statement that Buyer believes in good faith
                   to be questionable. All items in the Final Settlement
                   Statement to which Buyer does not except within the 30 day
                   review period will be deemed to be correct.

         2.3.2     Payment of Post-Closing Adjustments. Any additional
                   adjustments to the Sale Price (including disputed items) will
                   be offset against each other so that only one payment is
                   required. The Party owing payment will pay the other Party
                   the net post-Closing adjustment to the Sale Price within ten
                   (10) days after the expiration of Buyer's 30 day review
                   period for the Final Settlement Statement. However, the
                   payment of any disputed items will be subject to the further
                   rights of the Parties under Section 2.3.3.

         2.3.3     Resolution of Disputed Items. After the completion and
                   delivery of the Final Settlement Statement, the Parties agree
                   to negotiate in good faith to attempt to reach agreement on
                   the amount due with respect to any disputed items in the
                   Final Settlement Statement. If the Parties agree on the
                   amount due with respect to any disputed items, and a payment
                   adjustment is required, the Party owing payment will pay the
                   other Party within ten (10) days after the Parties reach
                   agreement. If the Parties are unable to agree on the amount
                   due with respect to any disputed items within sixty (60) days
                   after Seller receives Buyer's written exceptions to the Final
                   Settlement Statement, then (i) the Parties will attempt to
                   resolve their disagreement with respect to the disputed items
                   by mediation, as provided in Section 12.16 hereof, and (ii)
                   if the Parties are unable to resolve their disagreement over
                   the disputed items by mediation, such dispute shall be
                   determined in accordance with Section 2.3.4.

         2.3.4     Arbitration. If a dispute relating to the Final Settlement
                   Statement cannot be resolved pursuant to Section 2.3.3, such
                   dispute shall be resolved by binding arbitration in
                   accordance with the then current Commercial Arbitration Rules
                   of the American Arbitration Association. If the amount in
                   controversy in the arbitration exceeds Two Hundred Fifty
                   Thousand ($250,000), exclusive of interest, attorneys' fees
                   and costs, or if a single neutral arbitrator cannot be agreed
                   upon within thirty (30) calendar days after a dispute has
                   arisen which is to be decided by arbitration, the arbitration
                   shall be conducted by a panel of three (3) neutral
                   arbitrators. Otherwise, the arbitration shall be conducted by
                   a single neutral arbitrator. The parties shall endeavor to
                   select neutral arbitrators by mutual agreement. If such
                   agreement cannot be reached within thirty (30) calendar days
                   after a dispute has arisen which is to be decided by
                   arbitration, each party shall select its own neutral
                   arbitrator within 15 days of the expiration of such 30-day
                   period and the two neutral arbitrators so selected shall
                   select a third neutral arbitrator within 10 days of the
                   expiration of such 15-day period. The 3 persons thus selected
                   shall be the arbitrators for such arbitration. If three (3)
                   arbitrators are selected, the arbitrators shall elect a
                   chairperson to preside at all meetings and hearings. If a
                   dispute is to be resolved by a sole arbitrator in accordance
                   with the terms hereof, or if the dispute is to be resolved by
                   a panel of three (3) arbitrators as provided herein above,
                   then such sole arbitrator or the chairperson of such panel,
                   as the case may be, shall be a member of a state bar engaged
                   in the practice of law in the United States or a retired
                   member of a state or the federal judiciary in the United
                   States. The award of the arbitrator(s) shall require a
                   majority of the arbitrators in the case of a panel of
                   arbitrators, shall be in writing and reasoned, shall be based
                   on the evidence admitted and the substantive law of the State
                   of Texas and shall contain an award for each issue and
                   counterclaim. The award shall be made within thirty (30) days
                   following the close of the final hearing and the filing of
                   any post hearing briefs authorized by the arbitrator(s). The
                   award of the arbitrator(s) shall be final and binding on the
                   parties hereto and the subject matter. Judgment upon the
                   award rendered by the arbitrator(s) may be entered by any
                   court having jurisdiction. The place of arbitration shall be
                   in Dallas, Texas. Each party shall be entitled to inspect and
                   obtain a copy of relevant documents in the possession or
                   control of the other party and to take depositions of the
                   other parties' employees, agents, representatives and
                   witnesses (including expert witnesses). All such discovery
                   shall be in accordance with procedures approved by the
                   arbitrator(s). Unless otherwise provided in the award, each
                   party shall bear its own costs of discovery. All discovery
                   shall be expedited, consistent with the nature and complexity
                   of the claim or dispute and consistent with fairness and
                   justice. The arbitrator(s) shall have the power to compel any
                   party to comply with discovery requests of the other parties
                   and to issue binding orders relating to any discovery dispute
                   which shall be enforceable in the same manner as awards. The
                   arbitrator(s) also shall have the power to impose sanctions
                   for abuse or frustration of the arbitration process,
                   including without limitation, the refusal to comply with
                   orders of the arbitrator(s) relating to discovery and
                   compliance with subpoenas. Each of the parties hereto hereby
                   irrevocably submits to the jurisdiction of the courts of the
                   State of Texas for entry of any arbitration decision or to
                   obtain any preliminary relief which may be necessary and
                   hereby consents to the enforcement by such courts of any
                   award rendered in such arbitration.

2.4      Payment Method. Unless the Parties otherwise agree in writing, all
         payments under this Agreement shall be made by wire transfer in
         immediately available funds to an account designated by the Party
         receiving payment.

2.5      Principles of Accounting. The Preliminary Settlement Statement and the
         Final Settlement Statement will be prepared in accordance with
         generally accepted accounting principles in the petroleum industry and
         with reasonable supporting documentation for each item in those
         statements.

ARTICLE 3.  REPRESENTATIONS AND WARRANTIES

3.1      Wamsutter's Representations. Wamsutter represents and warrants to Buyer
         that the following statements are true and accurate as of the execution
         date of this Agreement, the Effective Date and the Closing Date.

         3.1.1     Authority. Wamsutter is a duly organized limited partnership
                   validly existing under the laws of the State of Texas, is
                   duly qualified to carry on its business in the state in which
                   the Interests are located, and has full power and authority
                   to enter into and perform this Agreement according to its
                   terms.

         3.1.2     Requisite Approvals. Wamsutter's execution, delivery and
                   performance of this Agreement has been duly authorized by all
                   necessary partnership action and will not violate or conflict
                   with any agreement, law, rule, regulation, charter or other
                   instrument governing Wamsutter or by which Wamsutter is
                   bound, except where such violation or conflict would not have
                   a material adverse effect on Wamsutter.

         3.1.3     Validity of Obligation. This Agreement and all other
                   transaction documents executed and delivered on or before the
                   Closing Date (i) have been duly executed by Wamsutter's
                   authorized representatives; (ii) constitute the valid and
                   legally binding obligations of Wamsutter, and (iii) are
                   enforceable against Wamsutter in accordance with their
                   respective terms.

         3.1.4     No Violation of Contractual Restrictions. The execution,
                   delivery and performance of this Agreement does not conflict
                   with or violate any agreement or instrument to which
                   Wamsutter is a party or by which Wamsutter is bound, except
                   any provision contained in agreements customary in the oil
                   and gas industry relating to (i) required consents to
                   transfer and related provisions; (ii) maintenance of uniform
                   interest provisions in joint operating agreements; and (iii)
                   any other third party approvals or consents contemplated in
                   this Agreement.

         3.1.5     No Violation of Other Legal Restrictions. The execution,
                   delivery and performance of this Agreement by Wamsutter does
                   not violate any law, rule, regulation, ordinance, judgment,
                   decree or order to which Wamsutter or the Interests being
                   sold by Wamsutter is subject.

         3.1.6     Bankruptcy. There are no bankruptcy, reorganization or
                   receivership proceedings pending, being contemplated by or,
                   to its actual knowledge, threatened against Wamsutter.

         3.1.7     Broker's Fees. Wamsutter has not incurred any liability,
                   contingent or otherwise, for brokers' or finders' fees
                   relating to the transactions contemplated by this Agreement
                   for which Buyer shall have any responsibility whatsoever.

         3.1.8     Lawsuits and Claims. There is no action, suit, proceeding, or
                   written claim by any person, entity, administrative agency or
                   governmental body pending or, to the best of its knowledge,
                   threatened, or to the best of its knowledge, any
                   investigation by any person, entity, administrative agency or
                   governmental body, against Wamsutter before any governmental
                   authority that impedes or is likely to impede its ability to
                   consummate the transactions contemplated by this Agreement
                   (except for any such action, suit, proceeding, claim or
                   investigation that does not and would not, individually or in
                   the aggregate, have a material adverse effect on the same).
                   Except for the actions, suits, or other proceedings that are
                   set forth on Schedule 3.1.8 attached hereto or that generally
                   effect the oil and gas industry, there are no pending
                   actions, suits, or other proceedings to which Wamsutter is a
                   party and for which Wamsutter has received service of process
                   which affect the Interests being sold by Wamsutter in any
                   material respect.

         3.1.9     Calls on Production. There exists no contracts that provide
                   for calls on production or other rights to purchase
                   production from the Interests, except for those contracts
                   scheduled on Schedule 3.1.9 attached hereto.

         3.1.10    Preferential Rights. To Wamsutter's knowledge, all
                   preferential rights to purchase that are contained in Joint
                   Operating Agreements or other contracts to which Wamsutter is
                   a party and that effect the Interests, are set forth on
                   Schedule 3.1.10 hereto.

         3.1.11    Severance Taxes. The Wyoming state severance taxes applicable
                   to the incremental production (as defined by the Wyoming tax
                   authorities) attributable to the Interests set forth on
                   Schedule 3.1.11 from reworking of the wells thereon have been
                   reduced from 6% to 2%.

         3.1.12    Section 29 Tax Credits. The production from the wells listed
                   on Exhibit A, Schedules VII and VIII qualifies as production
                   from a "tight formation" within the meaning of Section
                   29(c)(1)(B)(i) of the Internal Revenue Code of 1986, as
                   amended, and any successor statute thereto and have been
                   certified as gas produced from a tight formation in
                   accordance with Section 503 of the Natural Gas Policy Act of
                   1978.

3.2      Abraxas' Representations. Abraxas represents and warrants to Buyer that
         the following statements are true and accurate as of the execution date
         of this Agreement, the Effective Date and the Closing Date.

         3.2.1     Authority. Abraxas is a corporation, duly organized, validly
                   existing and in good standing under the laws of the State of
                   Nevada, is duly qualified to carry on its business in the
                   state in which the Interests are located, and has the
                   corporate power and authority to enter into and perform this
                   Agreement according to its terms.

         3.2.2     Requisite Approvals. Abraxas' execution, delivery and
                   performance of this Agreement has been duly authorized by all
                   necessary corporation action and will not violate or conflict
                   with any agreement, law, rule, regulation, charter or other
                   instrument governing Abraxas or by which Abraxas is bound
                   except where such violation or conflict would not have a
                   material adverse effect on Abraxas.

         3.2.3     Validity of Obligation. This Agreement and all other
                   transaction documents executed and delivered on or before the
                   Closing Date (i) have been duly executed by Abraxas'
                   authorized representatives; (ii) constitute the valid and
                   legally binding obligations of Abraxas, and (iii) are
                   enforceable against them in accordance with their terms.

         3.2.4     No Violation of Contractual Restrictions. The execution,
                   delivery and performance of this Agreement does not conflict
                   with or violate any agreement or instrument to which Abraxas
                   is a party or by which Abraxas is bound, except any provision
                   contained in agreements customary in the oil and gas industry
                   relating to (i) required consents to transfer and related
                   provisions; (ii) maintenance of uniform interest provisions
                   in joint operating agreements; and (iii) any other third
                   party approvals or consents contemplated in this Agreement.

         3.2.5     No Violation of Other Legal Restrictions. The execution,
                   delivery and performance of this Agreement by Abraxas does
                   not violate any law, rule, regulation, ordinance, judgment,
                   decree or order to which Abraxas or the Interests being sold
                   by Abraxas is subject.

         3.2.6     Bankruptcy. There are no bankruptcy, reorganization or
                   receivership proceedings pending, being contemplated by or,
                   to its actual knowledge, threatened against Abraxas.

         3.2.7     Broker's Fees. Abraxas has not incurred any liability,
                   contingent or otherwise, for brokers' or finders' fees
                   relating to the transactions contemplated by this Agreement
                   for which Buyer shall have any responsibility whatsoever.

         3.2.8     Lawsuits and Claims. There is no action, suit, proceeding, or
                   written claim by any person, entity, administrative agency or
                   governmental body pending or, to the best of its knowledge,
                   threatened, or to the best of its knowledge, any
                   investigation by any person, entity, administrative agency or
                   governmental body, against Abraxas before any governmental
                   authority that impedes or is likely to impede its ability to
                   consummate the transactions contemplated by this Agreement
                   (except for any such action, suit, proceeding, claim or
                   investigation that does not and would not, individually or in
                   the aggregate, have a material adverse effect on the same).
                   Except for the actions, suits, or other proceedings that are
                   set forth on Schedule 3.2.8 attached hereto or that generally
                   effect the oil and gas industry, there are no pending
                   actions, suits, or other proceedings to which Abraxas is a
                   party and for which Abraxas has received service of process
                   which affect the Interests being sold by Abraxas in any
                   material respect.

         3.2.9     Calls on Production. There exists no contracts that provide
                   for calls on production or other rights to purchase
                   production from the Interests, except for those contracts
                   scheduled on Schedule 3.2.9 attached hereto.

         3.2.10    Preferential Rights. To Abraxas' knowledge, all preferential
                   rights to purchase that are contained in Joint Operating
                   Agreements or other contracts to which Abraxas is a party and
                   that effect the Interests, are set forth on Schedule 3.2.10
                   hereto.

3.3      Buyer's Representations. Buyer represents and warrants to Seller that
         the following statements are true and accurate as of the execution date
         of this Agreement, the Effective Date and the Closing Date.

         3.3.1     Corporate Authority. Buyer is a duly organized corporation
                   validly existing and in good standing under the laws of the
                   state of Oklahoma, is duly qualified to carry on its business
                   in the state in which the Interests are located, and has full
                   power and authority to enter into and perform pursuant to
                   this Agreement according to its terms and this Agreement has
                   been duly executed and delivered by Buyer.

         3.3.2     Requisite Approvals. Buyer's execution, delivery and
                   performance of this Agreement has been duly authorized by all
                   necessary corporate action and will not conflict with or
                   violate any agreement, law, rule, regulation, ordinance,
                   charter or other instrument governing Buyer or by which Buyer
                   is bound, except where such violation or conflict would not
                   have a material adverse effect on Buyer.

         3.3.3     Validity of Obligation. This Agreement and all other
                   transaction documents executed and delivered on or before the
                   Closing Date (i) have been duly executed by Buyer's
                   authorized representatives; (ii) constitute the valid and
                   legally binding obligations of Buyer, and (iii) are
                   enforceable against it in accordance with their respective
                   terms.

         3.3.4     No Violation of Contractual Restrictions. The execution,
                   delivery and performance of this Agreement does not conflict
                   with or violate any agreement or instrument to which Buyer is
                   a party or by which it is bound ' except any provision
                   contained in agreements customary in the oil and gas industry
                   relating to: (i) preferential rights to purchase all or any
                   portion of an Interest; (ii) required consents to transfer
                   and related provisions; (iii) maintenance of uniform interest
                   provisions in joint operating agreements, and (iv) any other
                   third party approvals or consents contemplated in this
                   Agreement.

         3.3.5     No Violation of Other Legal Restrictions. The execution,
                   delivery and performance of this Agreement by Buyer does not
                   violate any law, rule, regulation, ordinance, judgment,
                   decree or order to which Buyer or the Interests is or, upon
                   Closing, will be subject.

         3.3.6     Bankruptcy. There are no bankruptcy, reorganization or
                   receivership proceedings pending, being contemplated by, or
                   to its actual knowledge, threatened against Buyer.

         3.3.7     Independent Evaluation. Buyer represents that by reason of
                   its knowledge and experience in the evaluation, acquisition
                   and operation of oil and gas properties, Buyer has evaluated
                   the merits and risks of purchasing the Interests from Seller
                   and has formed an opinion based solely on Buyer's knowledge
                   and experience and not on any representations or warranties
                   by Seller. Buyer represents that in entering into this
                   Agreement, Buyer has relied solely on the express
                   representations, warranties and covenants of Seller in this
                   Agreement, Buyer's independent investigation of, and judgment
                   with respect to, the Equipment and the other Interests and
                   the advice of its own legal, tax, economic, environmental,
                   engineering, geological and geophysical advisors and not on
                   any comments or statements of Seller or any representatives
                   of, or consultants or advisors engaged by Seller. Buyer
                   further represents that it has not relied and will not rely
                   on any statements by Seller or any of its representatives,
                   consultants or advisors, including, without limitation,
                   Randall & Dewey, Inc., in making its decision to enter into
                   this Agreement or to close this transaction.

         3.3.8     Broker's Fees. Buyer has not incurred any liability,
                   contingent or otherwise, for brokers' or finders' fees
                   relating to the transactions contemplated by this Agreement
                   for which Seller shall have any responsibility whatsoever.

         3.3.9     Lawsuits and Claims. There is no action, suit, proceeding,
                   claim or investigation by any person, entity, administrative
                   agency or governmental body pending or, to the best of its
                   knowledge, threatened, against it before any governmental
                   authority that impedes or is likely to impede its ability to
                   consummate the transactions contemplated by this Agreement
                   and to assume the liabilities to be assumed by it under this
                   Agreement (except for any such action, suit, proceeding,
                   claim or investigation that does not and would not,
                   individually or in the aggregate, have a material adverse
                   effect on the same).

         3.3.10    Securities Laws. Buyer has complied with all federal and
                   state securities laws applicable to the purchase and sale of
                   the Interests and will comply with such laws if it
                   subsequently disposes of all or any part of the Interests.

         3.3.11    Financing. Buyer has the financial capacity to consummate the
                   transactions contemplated by this Agreement.

3.4      Notice of  Changes.  Seller and Buyer  will each give the other  prompt
         written  notice  of  any  matter  materially  affecting  any  of  their
         unqualified  representations  or  warranties  under  this  Article 3 or
         rendering any such warranty or representation untrue or inaccurate.

3.5      Representations and Warranties Exclusive. All representations and
         warranties contained in this Agreement (including, without limitation,
         those in Article 3 of this Agreement) are exclusive, and are given in
         lieu of all other representations and warranties, express or implied.


ARTICLE 4.  TITLE WARRANTY; DISCLAIMER OF WARRANTIES

4.1      Special Warranty of Title; Encumbrances. SELLER CONVEYS THE INTERESTS
         TO BUYER SUBJECT TO ALL ROYALTIES, OVERRIDING ROYALTIES, BURDENS,
         ENCUMBRANCES, NATIVE ALLOTMENTS AND OTHER RIGHTS OF RECORD, AND WITHOUT
         WARRANTY OF TITLE, EXPRESS, STATUTORY, OR IMPLIED, EXCEPT THAT SELLER
         SPECIALLY WARRANTS AND AGREES TO DEFEND TITLE TO THE INTERESTS IT
         CONVEYS TO BUYER AGAINST THE CLAIMS, ENCUMBRANCES AND DEMANDS OF ALL
         PERSONS CLAIMING TITLE TO THE INTERESTS BY, THROUGH, OR UNDER SELLER
         BUT NOT OTHERWISE, SUBJECT TO THE LIMITATIONS SET FORTH IN THIS SECTION
         4.1. Seller's special warranty of title contained in the preceding
         sentence applies to Seller's contractual and record title interest to
         be conveyed to Buyer under this Agreement, as that contractual and
         record title interest is specifically described in Exhibit A; provided,
         however, Seller's special warranty is limited by all of the following
         to the extent binding upon Seller: (i) all instruments of record as of
         the Effective Date; and (ii) all future changes in the fee mineral
         interests, working interests, royalty interests, overriding royalty
         interests or net revenue interests stated in Exhibit A that may be
         caused by the operation of any provision of the instruments or
         contracts specifically noted or described in Exhibit A. With respect to
         any claim Seller may be obligated to defend pursuant to this warranty,
         Buyer shall have the right, but not the obligation, to participate
         fully in the defense of the claim.

4.2      Condition and Fitness of the Interests. Except as set forth in Section
         4.1 of this Agreement, SELLER CONVEYS THE INTERESTS TO BUYER WITHOUT
         ANY EXPRESS, STATUTORY OR IMPLIED WARRANTY OR REPRESENTATION OF ANY
         KIND, INCLUDING WARRANTIES RELATING TO (i) THE CONDITION OR
         MERCHANTABILITY OF THE INTERESTS, OR (ii) THE FITNESS OF THE INTERESTS
         FOR A PARTICULAR PURPOSE. BUYER HAS INSPECTED, OR BEFORE CLOSING WILL
         INSPECT OR WILL HAVE BEEN GIVEN THE OPPORTUNITY TO INSPECT, THE
         INTERESTS FOR ALL PURPOSES, INCLUDING WITHOUT LIMITATION FOR THE
         PURPOSE OF DETECTING THE PRESENCE OF NATURALLY OCCURRING RADIOACTIVE
         MATERIALS ("NORM") AND MAN MADE MATERIAL FIBERS ("MMMF") AND SATISFIED
         ITSELF AS TO THEIR PHYSICAL AND ENVIRONMENTAL CONDITION, BOTH SURFACE
         AND SUBSURFACE, INCLUDING BUT NOT LIMITED TO CONDITIONS RELATED TO THE
         PRESENCE, RELEASE, OR DISPOSAL OF HAZARDOUS SUBSTANCES. BUYER IS
         RELYING SOLELY UPON THE RESULTS OF SUCH INSPECTION OF THE INTERESTS AND
         SHALL ACCEPT ALL OF THE SAME IN THEIR "AS IS, WHERE IS" CONDITION AND
         "WITH ALL FAULTS". SELLER DISCLAIMS ALL LIABILITY ARISING IN CONNECTION
         WITH THE PRESENCE OF NORM OR MMMF ON THE INTERESTS AND IF TESTS HAVE
         BEEN CONDUCTED BY SELLER FOR THE PRESENCE OF NORM OR MMMF, SELLER
         DISCLAIMS ANY WARRANTY RESPECTING THE ACCURACY OF SUCH TESTS OR
         RESULTS.

4.3      Information About the Interests. SELLER AND ITS CONSULTANTS, INCLUDING,
         WITHOUT LIMITATION, RANDALL & DEWEY, INC., MAKE NO WARRANTY OR
         REPRESENTATION, EXPRESS, STATUTORY OR IMPLIED, AS TO (i) THE ACCURACY,
         COMPLETENESS, OR MATERIALITY OF ANY DATA, INFORMATION OR RECORDS
         FURNISHED TO BUYER IN CONNECTION WITH THE INTERESTS; (ii) THE QUALITY
         AND QUANTITY OF HYDROCARBON RESERVES (IF ANY) ATTRIBUTABLE TO THE
         INTERESTS; (iii) THE ABILITY OF THE INTERESTS TO PRODUCE HYDROCARBONS,
         INCLUDING WITHOUT LIMITATION PRODUCTION RATES, DECLINE RATES AND
         RECOMPLETION OPPORTUNITIES; (iv) GAS BALANCING INFORMATION, ALLOWABLES
         OR OTHER REGULATORY MATTERS; (v) THE PRESENT OR FUTURE VALUE OF THE
         ANTICIPATED INCOME, COSTS OR PROFITS, IF ANY, TO BE DERIVED FROM THE
         INTERESTS, OR (vi) THE ENVIRONMENTAL CONDITION OF THE INTERESTS. ANY
         DATA, INFORMATION OR OTHER RECORDS FURNISHED BY SELLER ARE PROVIDED TO
         BUYER AS A CONVENIENCE AND BUYER'S RELIANCE ON OR USE OF THE SAME IS AT
         BUYER'S SOLE RISK. BUYER EXPRESSLY WAIVES THE PROVISIONS OF CHAPTER
         XVII, SUBCHAPTER E, SECTIONS 17.41 THROUGH 17.63, INCLUSIVE (OTHER THAN
         SECTION 17.555, WHICH IS NOT WAIVED), VERNON'S TEXAS CODE ANNOTATED,
         BUSINESS AND COMMERCE CODE (THE "DECEPTIVE TRADE PRACTICES ACT");
         ACKNOWLEDGES THAT THE EXPRESS WAIVERS CONTAINED IN THIS SECTION 4.3
         SHALL BE CONSIDERED A MATERIAL AND INTEGRAL PART OF THIS SALE AND THE
         CONSIDERATION THEREOF; AND ACKNOWLEDGES THAT THESE WAIVERS HAVE BEEN
         BROUGHT TO THE ATTENTION OF BUYER AND EXPLAINED IN DETAIL AND THAT
         BUYER HAS VOLUNTARILY AND KNOWINGLY CONSENTED TO THESE WAIVERS. ALL
         INSTRUMENTS OF CONVEYANCE TO BE DELIVERED BY SELLER AT CLOSING SHALL
         EXPRESSLY SET FORTH THE DISCLAIMERS OF REPRESENTATIONS AND WARRANTIES
         CONTAINED IN THIS PARAGRAPH.

4.4      Subrogation of Warranties. To the extent transferable, Seller will give
         and grant to Buyer, its successors and assigns full power and right of
         substitution and subrogation in and to all covenants' and warranties
         (including warranties of title) by preceding owners, vendors, or
         others, given or made with respect to the Interests or any part thereof
         prior to the Effective Date of this Agreement.


ARTICLE 5.  DILIGENCE REVIEW OF THE INTERESTS

5.1      Access to Records. After execution of this Agreement, Seller shall give
         Buyer and its authorized representatives, during regular business
         hours, at Buyer's sole risk, cost and expense, access, with copying
         privileges, to all production, engineering and other technical data and
         records, and to all contract, land, title, lease, marketing and
         accounting records to the extent such data and records are in Seller's
         possession and relate to the Interests, and to such other information
         relating to the Interests as Buyer may reasonably request. However,
         Seller shall have no obligation to provide Buyer such access to any
         data or information which (i) Seller considers proprietary or
         confidential or (ii) Seller cannot legally provide Buyer because of
         third-party restrictions on Seller. Buyer shall keep all materials and
         data obtained confidential until the Closing Date. Any confidentiality
         agreement previously executed by Seller and Buyer with respect to the
         Interests will continue in force and effect until the Closing Date;
         provided, however, that in the event that the transactions contemplated
         by this Agreement are not consummated, the confidentiality agreement
         shall continue in full force and effect for the period of time set
         forth therein.. Buyer shall take all reasonable steps necessary to
         ensure that Buyer's authorized representatives comply with the
         provisions of this Section 5.1 and any confidentiality agreement in
         effect. Upon termination of this Agreement without Closing, and upon
         receipt of Seller's written request, Buyer shall return to Seller any
         and all materials and data relating to any properties not purchased at
         Closing and shall destroy any and all of Buyer's notes and work papers
         derived therefrom in accordance with the terms of said confidentiality
         agreement.

5.2      Physical and Environmental Inspection. After the execution of this
         Agreement, Seller will permit Buyer and its authorized representatives
         reasonable physical access to the Leases and Equipment at times
         approved by Seller and at Buyer's sole cost, risk and expense for the
         purposes of inspecting the same, conducting such tests, examinations,
         investigations and assessments as may be reasonable and necessary or
         appropriate to evaluate the physical and environmental condition of the
         Leases and Equipment. Buyer shall repair any damage to the Interests
         resulting from its inspection and shall defend and indemnify Seller and
         Seller's affiliates, partners, members, shareholders, directors,
         officers, agents, representatives, consultants, advisers, contractors,
         successors and assigns (collectively, the "Seller Indemnified Group")
         from any and all Claims (as hereinafter defined) arising from Buyer
         inspecting and observing the Interests, including, without limitation,
         (i) Claims for personal injury to or death of employees of Buyer, its
         agents, contractors, subcontractors or invitees and/or damage to the
         property of Buyer or others acting on behalf of Buyer, REGARDLESS OF
         WHETHER SUCH CLAIMS ARE CAUSED BY THE CONCURRENT NEGLIGENCE OF SELLER
         OR THE CONDITION OF THE INTERESTS, and (ii) Claims for personal injury
         to or death of employees of Seller or third parties and damage to the
         property of Seller or third parties, to the extent caused by the
         negligence, gross negligence or willful misconduct of Buyer. As used in
         this Agreement, the term "Claims" means any and all losses,
         liabilities, damages, obligations, expenses, fines, penalties, costs,
         claims, causes of action and judgments, including, without limitation,
         reasonable attorneys fees, court costs, and other reasonable costs of
         litigation resulting from the defense of any claim or cause of action
         within the scope of the indemnities in this Agreement for (i) breaches
         of contract; (ii) loss or damage to property, injury to or death of
         persons, and other tortious injury; and (iii) violations of applicable
         laws, rules, regulations, orders; or (iv) any other legal right or duty
         actionable at law or equity.

5.3     Environmental Assessment.

         5.3.1     Inspection and Test Results. Buyer agrees to provide to
                   Seller a copy of any and all environmental inspections and
                   assessments, including, without limitation, all written
                   reports, data and conclusions. Buyer and Seller shall keep
                   any and all data or information acquired by all such
                   examinations and results of all analysis of such data and
                   information strictly confidential and not disclose same to
                   any person or agency without the prior written approval of
                   the other party, unless required to do so by applicable law
                   or by the order of a Court or regulatory agency.
                   Notwithstanding the foregoing, Buyer may disclose the results
                   of any such environmental inspections and assessments to its
                   employees, agents and representatives that have a need to
                   review same in order to conclude the necessary environmental
                   review and assessment under this Agreement, provided that
                   Buyer hereby agrees to enter into agreements with such
                   employees, agents and representatives binding such persons to
                   the same confidentiality obligations as are contained herein.
                   The foregoing obligation of confidentiality shall survive for
                   five (5) years after the Closing and will survive the
                   termination of this Agreement without closing.

         5.3.2     Notice of Environmental Conditions. Prior to Closing, Buyer
                   will review the inspection and testing results for the
                   Interests and determine based on those results if any adverse
                   environmental conditions exist with respect to the Interests.
                   No later than 5 business days before Closing, Buyer will
                   notify Seller in writing of any adverse environmental
                   conditions with respect to the Interests, and the estimated
                   value of any such environmental condition. The value of an
                   environmental condition for purposes of Section 5.3.3 will be
                   the estimated amount of all costs and Claims associated with
                   the remediation or correction of the environmental condition,
                   as determined by the agent or representative of Buyer that
                   conducted the environmental assessment and as agreed upon by
                   Buyer and Seller.

         5.3.3     Rights and Remedies for Environmental Conditions.

                   (i)  With respect to any environmental condition affecting
                        the Interests, Buyer may (a) request Seller to cure the
                        environmental condition, but Seller will have no
                        obligation to cure the environmental condition, or (b)
                        request an adjustment in the Sale Price equal to the
                        estimated value of the environmental condition as
                        mutually agreed by Seller and Buyer; provided, however,
                        that in the event that the cost to cure the
                        environmental condition or the amount of the adjustment
                        to the Sale Price as a result of any environmental
                        condition is greater than the Allocated Value of the
                        Interest subject to the environmental condition, then
                        Seller, in its sole discretion, may elect to retain such
                        Interest and the Sale Price shall be reduced by the
                        amount of the Allocated Value for such Interest and if
                        Seller makes such election, then Buyer, in its sole
                        discretion, may elect to include such Interest in the
                        transactions contemplated by this Agreement and the Sale
                        Price shall only be reduced by the amount of the
                        Allocated Value for such Interest. If Seller and Buyer
                        are unable to agree no later than 3 business days before
                        Closing on curative measures or the amount of an
                        adjustment to the Sale Price with respect to any such
                        environmental condition, the Parties will have the
                        rights and remedies set forth in subpart (ii) of this
                        Section 5.3.3.

                   (ii) The rights and remedies of the Parties with respect to
                        environmental conditions on the Interests on which the
                        Parties cannot agree on curative measures or a Sale
                        Price adjustment are as follows:

                           (a)      If the collective value of the environmental
                                    conditions is less than 1% of the Sale
                                    Price, the Parties will be obligated to
                                    proceed with Closing as to all of the
                                    Interests without curative action by Seller
                                    with respect to such environmental
                                    conditions and without an adjustment to the
                                    Sale Price.

                           (b)      If the collective value of the environmental
                                    conditions equals or exceeds 1% of the Sale
                                    Price, the Parties may refer the matter to a
                                    mutually agreed upon third party expert for
                                    determination. The determination of such
                                    expert shall be binding on the Parties, and
                                    the Sale Price will be reduced by the
                                    positive difference, if any, between the
                                    determined value of the environmental
                                    conditions and one percent (1%) of the Sale
                                    Price. The Parties will be obligated to
                                    proceed with Closing, subject to the
                                    termination rights of the Parties under
                                    Article 6 and subpart (d) of this Section
                                    5.3.3.

                           (c)      If the collective value of the environmental
                                    conditions equals or exceeds 1% of the Sale
                                    Price, and the Parties agree with respect to
                                    the existence of such conditions and the
                                    value thereof, the Sale Price will be
                                    reduced by the positive difference, if any,
                                    between the agreed upon value of the
                                    environmental conditions and one percent
                                    (1%) of the Sale Price, and the Parties will
                                    be obligated to proceed with Closing,
                                    subject to the termination rights of the
                                    Parties under Article 6 and subpart (d) of
                                    this Section 5.3.3.

                           (d)      If the collective value of the environmental
                                    conditions equals or exceeds 25% of the Sale
                                    Price, either Party may terminate this
                                    Agreement, and neither party will have any
                                    further obligation to conclude the transfer
                                    of the Interests under this Agreement.
                                    However, the right of termination under this
                                    subpart (d) must be exercised no later than
                                    3 business days before Closing, after which
                                    both Parties will be deemed to have waived
                                    their termination rights under this subpart
                                    (d) in connection with environmental
                                    conditions.

                  (iii)  Subject to any agreement by Buyer and Seller to cure an
                         environmental condition and notwithstanding any
                         agreement by Buyer and Seller to reduce the Sale Price
                         due to an environmental condition with respect to the
                         Interests, or any other provision of this Agreement,
                         Buyer at Closing will assume all environmental
                         obligations with respect to the Interests, as provided
                         in Section 8.2.

5.4      Government Approvals.

         5.4.1     Title Pending Governmental Approvals. Until Seller and Buyer
                   obtain any necessary federal, state and Indian approvals of
                   the assignment of Leases or other Interests requiring such
                   approval, Seller will continue to hold record title to such
                   Leases or other Interests as nominee for Buyer. If Seller
                   continues to operate the Interests pending such approval,
                   Seller and Buyer will have the rights and obligations with
                   respect to the operation of the Interests set forth in
                   Section 11.3.

         5.4.2     Denial of Required Government Approvals. If any required
                   approval is finally denied, Seller shall pay Buyer the
                   Allocated Value of the affected Leases or other affected
                   Interests, and Buyer shall immediately reassign such Leases
                   or other Interests to Seller and Seller shall reimburse Buyer
                   for (i) an amount equal to its operating expenses minus its
                   revenues related to the affected Interests and (ii) other
                   expenditures incurred by Buyer on such affected Interests
                   incurred between the Effective Date and the date of such
                   reassignment.

5.5      Preferential Rights and Consents to Assign.

         5.5.1     Notices to Holders.

                   (i)     If any of the Interests is subject to third party
                           preferential purchase rights, rights of first
                           refusal, or similar rights (collectively,
                           "Preferential Rights"), or third party consents to
                           assign, lessor's approvals or similar rights
                           (collectively, "Consents"), Seller shall use
                           reasonable efforts to (1) notify the holders of the
                           Preferential Rights and consents that it intends to
                           transfer the Interests to Buyer, (2) provide them
                           with any information about the transfer of the
                           Interests to which they are entitled, and (3) in the
                           case of Consents, ask the holders of the Consents to
                           consent to the assignment of the affected Interests
                           to Buyer.

                   (ii)    Seller shall promptly notify Buyer whether (a) any
                           Preferential Rights are exercised, waived or deemed
                           waived, (b) any Consents are denied, or (c) the
                           requisite time periods have elapsed without any
                           Preferential Rights being exercised or Consents being
                           received. Seller will not be liable to Buyer if any
                           Preferential Rights are exercised, or any Consents
                           are denied, except as expressly provided in this
                           Section 5.5.

         5.5.2     Remedies Before Closing . If Seller is unable before Closing
                   to obtain the required Consents (other than Consents
                   ordinarily obtained after closing and Consents on hydrocarbon
                   sales, purchase, gathering, transportation, treating,
                   marketing, exchange, processing and fractionating agreements)
                   and waivers of all Preferential Rights, then:

                   (i)     Seller and Buyer by agreement may proceed with
                           Closing as to the Interests affected by the unwaived
                           Preferential Rights or unobtained Consents, subject
                           to the further obligations of Seller and Buyer set
                           forth in Section 5.5.3 in the event that such
                           Preferential Rights are validly exercised or such
                           Consents are ultimately denied after Closing;

                   (ii)    Either Seller or Buyer may exclude the affected
                           portion of the Interests from the transaction under
                           this Agreement, adjust the Sale Price by the
                           Allocated Value of the excluded Interests, and
                           proceed with Closing as to the rest of the Interests;
                           or

                   (iii)   In addition to the remedies set forth in subparts (i)
                           and (ii) of this Section 5.5.2, Buyer may exercise
                           the termination rights set forth in Article 6.

         5.5.3    Remedies After Closing.

                   (i)     Preferential Rights. After Closing, if (a) any holder
                           of Preferential Rights alleges improper notice of
                           sale, or (b) Seller or Buyer discover, or any third
                           party alleges, the existence of additional
                           Preferential Rights, Seller and Buyer will attempt to
                           obtain waivers of those discovered or alleged
                           Preferential Rights. If Seller and Buyer are unable
                           to obtain waivers of such Preferential Rights, or the
                           third party ultimately establishes and exercises its
                           rights, and such exercise denies the Interests to
                           Buyer, then Buyer and Seller will rescind the
                           assignment of the affected Interests under this
                           Agreement, after which Seller shall pay Buyer the
                           Allocated Value of the affected Interests, and Buyer
                           shall immediately reassign the affected Interests to
                           the Seller. Rescission of the assignment of the
                           affected Interests and receipt of the Allocated Value
                           of the affected Interests shall be Buyer's sole
                           remedy if undiscovered or alleged Preferential Rights
                           are exercised or Consents are denied after Closing;
                           provided, however, that Seller shall reimburse Buyer
                           for (i) an amount equal to its operating expenses
                           minus its revenues relating to the affected Interests
                           and (ii) other expenditures incurred by Buyer on such
                           affected Interests between the Effective Date and the
                           date of such rescission.

                   (ii)    onsents. After Closing, if Seller or Buyer discover,
                           or any third party alleges, the existence of
                           additional Consents, Seller and Buyer will attempt to
                           obtain waivers of those discovered or alleged
                           Consents. If Seller and Buyer are unable to obtain
                           waivers of such Consents , and such unwaived Consents
                           deny the affected Interests to Buyer, then Seller and
                           Buyer will rescind the assignment of the affected
                           Interests under this Agreement, after which Seller
                           shall pay Buyer the Allocated Value of the affected
                           Interests, and Buyer shall immediately reassign the
                           affected Interests to the Seller. Rescission of the
                           assignment of the affected Interests and receipt of
                           the Allocated Value of the affected Interests shall
                           be Buyer's sole remedy if undiscovered or alleged
                           Preferential Rights are exercised or Consents are
                           denied after Closing; provided, however, that Seller
                           shall reimburse Buyer for (i) an amount equal to its
                           operating expenses minus its revenues relating to the
                           affected Interests and (ii) other expenditures
                           incurred by Buyer on such affected Interests between
                           the Effective Date and the date of such rescission.

5.6      Title Defects.

         5.6.1     Definition of Title Defect. For the purpose of this
                   Agreement, a "Title Defect" shall mean any material
                   deficiency other than Permitted Encumbrances (as defined
                   below) in the Interests or Seller's title to the Interests
                   which results in:

                   (i)     Seller's title at the Effective Date and at the
                           Closing Date, as to one or more Interests, being
                           subject to an outstanding mortgage, deed of trust,
                           lien or security interest;

                   (ii)    Seller owning less than the net revenue interest
                           shown on Exhibit A, Schedule I hereto or being
                           obligated to bear a share of the costs and expenses
                           of operation greater than the working interest shown
                           on Exhibit A, Schedule I hereto without a
                           corresponding increase in net revenue interest; or

                   (iii)   Seller's rights and interests being reduced by virtue
                           of the exercise by a third party reversionary or
                           back-in interest, farmout of other than wellbore
                           rights, or other similar right not reflected on
                           Exhibit A, Schedule I.

                   (iv)    Permitted Encumbrances shall mean:

                           A. liens or other security interests for (i) taxes
                              which are not yet delinquent, (ii) mechanic's or
                              materialmen's liens (or other similar liens) or a
                              lien under an operating or similar agreement to
                              the extent the same relates to expenses incurred
                              which are not yet delinquent or will be released
                              prior to Closing; and

                           B. imperfections in title, which, if asserted, would
                              otherwise cause a Title Defect and which are
                              normally waived by persons engaged in the oil and
                              gas business with knowledge of all the facts when
                              purchasing producing properties.

                  Neither the  environmental  condition of the Interests nor any
                  failure to obtain  Consents to the transfer of Contracts  will
                  be considered a Title Defect under this Section 5.6.

         5.6.2     Notice of Title Defects. Upon the discovery of a Title Defect
                   by Buyer, Buyer shall immediately notify Seller in writing.
                   Any such notice by Buyer shall include appropriate evidence
                   and documentation to substantiate its position and shall be
                   delivered to Seller on or before five (5) days prior to
                   Closing Date (the "Title Claim Date"). After the Title Claim
                   Date, the Interests shall be deemed to be free of Title
                   Defects except for those for which notice has been timely
                   provided as set forth herein. Any Title Defect which is not
                   disclosed to Seller on or before the Title Claim Date shall
                   conclusively be deemed waived by Buyer for all purposes.

         5.6.3     Right to Cure Title Defect. If Buyer notifies Seller of a
                   Title Defect as provided in Section 5.6.2, Seller shall have
                   the right but not the obligation to cure the Title Defect. If
                   Seller chooses to cure a Title Defect, Seller must cure the
                   Title Defect before Closing, unless the Parties otherwise
                   agree in writing.

         5.6.4     Remedies for Uncured Title Defects. If Buyer notifies Seller
                   of any Title Defect as provided in Section 5.6.2, and Seller
                   refuses or is unable to cure the Title Defect before Closing,
                   then Buyer and Seller will have the following rights and
                   remedies with respect to the uncured Title Defects, unless
                   the Parties otherwise agree in writing.

                   (i)     Buyer may waive the uncured Title Defect and proceed
                           with Closing.

                   (ii)    If an uncured, unwaived Title Defect reduces the
                           value of the Interest affected by an amount less than
                           one percent (1%) of the Allocated Value of that
                           Interest, Seller and Buyer will be obligated to
                           proceed with Closing as to the affected Interest
                           without adjustment to the Sale Price.

                   (iii)   If an uncured, unwaived Title Defect reduces the
                           value of the Interest affected by an amount equal to
                           or more than one percent (1%) of the Allocated Value
                           of the affected Interest, the Parties will attempt to
                           agree on the value of the Title Defect. If the
                           Parties are unable to agree as to whether the Title
                           Defect exists or the value thereof, Seller and Buyer
                           may refer the matter to a mutually agreeable third
                           party expert for determination. The determination of
                           such expert shall be binding on the Parties. Seller
                           and Buyer shall reduce the Sale Price by the value
                           agreed upon by the Parties or determined by the
                           expert (as applicable) if the determined value
                           exceeds one percent (1%) of the Allocated Value of
                           the affected Interest and proceed with Closing.

                   (iv)    If an uncured, unwaived Title Defect reduces the
                           value of the affected Interest by an amount equal to
                           or more than fifty percent (50%) of the Allocated
                           Value of that Interest, Seller or Buyer, in its sole
                           discretion, may exclude the affected Interest from
                           the transaction under this Agreement, in which case
                           Seller and Buyer will adjust the Sale Price by the
                           Allocated Value of the excluded Interest, and proceed
                           with Closing as to the balance of the Interests.

5.7      Casualty Losses and Government Takings.

         5.7.1    Notice of Casualty Losses and Government Takings. If, prior to
                  the Closing  Date,  all or part of the Interests is damaged or
                  destroyed by fire, flood,  storm or other casualty  ("Casualty
                  Loss"),  or is taken in  condemnation  or under  the  right of
                  eminent  domain,  or if proceedings for such purposes shall be
                  pending  or  threatened  ("Government  Taking"),  Seller  must
                  promptly  notify  Buyer in writing of the nature and extent of
                  the Casualty Loss or Government  Taking and Seller's  estimate
                  of the cost  required to repair or replace that portion of the
                  Interests  affected  by the  Casualty  Loss  or  value  of the
                  Interests taken by the Government Taking.

        5.7.2     Remedies  for Casualty  Losses and  Government  Takings.  With
                  respect to each Casualty  Loss to or Government  Taking of the
                  Interests, Seller and Buyer will have the following rights and
                  remedies.

                  (i)      If the agreed  cost to repair or replace  the portion
                           of the Interests affected by the Casualty Loss or the
                           agreed value of the Interests taken in any Government
                           Taking is less than twenty-five  percent (25%) of the
                           Allocated Value of the Interests  affected,  the Sale
                           Price  will be  adjusted  by the  agreed  cost of the
                           Casualty  Loss or the agreed  value of the  Interests
                           taken by the Government  Taking, and the Parties will
                           proceed with Closing.

                   (ii)    If the agreed cost to repair or replace the portion
                           of the Interests affected by the Casualty Loss or the
                           agreed value of the Interests taken in any Government
                           Taking equals or exceeds twenty-five percent (25%) of
                           the Allocated Value of the Interests affected, either
                           Seller or Buyer, in its sole discretion, may exclude
                           the affected Interest from the transaction under this
                           Agreement, in which case Seller and Buyer will adjust
                           the Sale Price by the Allocated Value of the excluded
                           Interest and proceed with Closing as to the balance
                           of the Interests, or Buyer may elect to adjust the
                           Sale Price by the agreed cost of the casualty loss or
                           the agreed value of the Interests taken by the
                           government taking, and the parties will proceed with
                           closing.

                   (iii)   In addition to the remedies set forth in subparts (i)
                           and (ii) of this Section 5.7.2, Seller and Buyer will
                           have the termination rights in connection with
                           Casualty Losses and Government Takings as set forth
                           in Section 5.8.

         5.7.3     Insurance Proceeds and Settlement Payments. If Seller and
                   Buyer adjust the Sale Price of the Interests due to a
                   Casualty Loss or Government Taking, and proceed with Closing,
                   Seller will be entitled to retain (i) all insurance proceeds
                   payable to Seller with respect to any such Casualty Loss,
                   (ii) all sums paid to Seller by third parties by reason of
                   any such Casualty Loss, and (iii) all compensation paid to
                   Seller with respect to any such Government Taking.

         5.7.4     Exclusion of Ordinary Depreciation and Depletion. Buyer will
                   assume all risk and loss with respect to any change, between
                   the Effective Date and the Closing Date, in the condition of
                   the Interests resulting from production of Hydrocarbons
                   through normal depletion (including the watering-out or sand
                   infiltration of any well) and the depreciation of personal
                   property through ordinary wear and tear. None of the events
                   or conditions set forth in this Section 5.7.4 will be
                   considered a Casualty Loss with respect to the Interests, nor
                   will they be cause for any other reduction in the Sale Price,
                   or give rise to any right to terminate this Agreement.

5.8      Termination Due to Impairments to the Interests.

         5.8.1     Right to Terminate.

                   (i)     If, on the Closing Date, the Allocated Value of all
                           Interests to be excluded from the transaction
                           contemplated by this Agreement due to unwaived,
                           uncured Title Defects, unwaived Preferential Rights,
                           unobtained Consents or environmental conditions on
                           the Interests exceeds twenty-five percent (25%) of
                           the total Allocated Value of all of the Interests,
                           either Buyer or Seller may terminate this Agreement,
                           and neither Party will have any further obligation to
                           conclude the transfer of the Interests under this
                           Agreement.

                   (ii)    If, on or before the Closing Date, a Casualty Loss or
                           Government Taking has occurred with respect to the
                           Interests, and (a) Buyer and Seller have been unable
                           to agree on the cost of the Casualty Loss or the
                           value of the Interests taken in any Government
                           Taking, or (b) the agreed cost to repair or replace
                           the portion of the Interests affected by the Casualty
                           Loss or the agreed value of the Interests taken in
                           any Government Taking equals or exceeds 25% of the
                           total Allocated Value of all of the Interests, then
                           either Buyer or Seller may terminate this Agreement,
                           and neither party will have any further obligation to
                           conclude the transfer of the Interests under this
                           Agreement.

         5.8.2     Notice of Termination. Any Party exercising a right of
                   termination under this Section 5.8 must notify the other
                   Party in writing no later than 3 business days before the
                   Closing Date of its election to terminate this Agreement.

ARTICLE 6.  TERMINATION AND EFFECT OF TERMINATION.

6.1      Right to Terminate. If, on the Closing Date, the Sale Price is to be
         reduced as a result of uncured Title Defects and/or Casualty Losses or
         Government Takings by an aggregate amount equal to or greater than
         fifty percent (50%) of the total unadjusted Sale Price, Seller or Buyer
         shall have the right, in its sole discretion, to terminate this
         Agreement, and thereafter neither Party will have any further rights,
         duties or obligations under this Agreement, except for the return of
         the Earnest Money to Buyer. Either Seller or Buyer may exercise this
         right by notifying the other party of its election to terminate this
         Agreement in writing no later than three (3) business days before the
         Closing Date.

6.2      Effect of Termination. The following provisions shall apply in the
         event this Agreement is terminated prior to the Closing Date.

         6.2.1     Termination by Agreement. If this Agreement is terminated by
                   the mutual agreement of the Seller and the Buyer and not as
                   the result of the failure of either party to perform its
                   obligations hereunder, such termination shall be without
                   liability of any party to this Agreement or any shareholder,
                   director, officer, employee, agent or representative of such
                   party, and the Seller shall return the Earnest Money (without
                   interest) to the Buyer promptly and neither Party will have
                   any further rights, duties or obligations.

         6.2.2     Termination as a Result of Buyer's Breach. If this Agreement
                   is terminated (i) by Seller pursuant to Section 7.3 hereof or
                   (ii) as a result of the failure of Buyer to perform its
                   obligations hereunder, then Seller shall be entitled to
                   retain the Earnest Money as liquidated damages and as
                   reimbursement for Seller's out-of-pocket fees and expenses
                   incurred in connection with the transactions contemplated by
                   this Agreement. The parties hereby acknowledge that the
                   extent of damages to Seller occasioned by such breach or
                   default or failure to proceed by Buyer would be impossible or
                   extremely impractical to ascertain and that the amount of the
                   Earnest Money is a fair and reasonable estimate of such
                   damage.

         6.2.3     Termination as a Result of Seller's Breach. If this Agreement
                   is terminated as a result of the failure of Seller to satisfy
                   the conditions to closing of Buyer set forth in section 7.1,
                   then Seller shall return the Earnest Money (with interest at
                   the prime rate of interest of Chase Bank) promptly, and
                   neither Seller nor Buyer shall have any further rights,
                   duties or obligations under this Agreement, except that
                   Seller shall reimburse Buyer for all necessary and reasonable
                   out of pocket expenses paid to unaffiliated third parties and
                   incurred directly in the negotiation of this Agreement and
                   the conducting of due diligence up to but not in excess of
                   One Million Dollars ($1,000,000).

         6.2.4     Failure of Seller to Close. In the event that (i) all of
                   Buyer's conditions to closing set forth in Section 7.1 have
                   been satisfied or waived in writing by Buyer and (ii) all of
                   Seller's conditions to closing set forth in Section 7.2 have
                   been satisfied or waived in writing by Seller and (iii)
                   Seller fails to consummate the transactions contemplated by
                   this Agreement, then Buyer's sole and exclusive remedy shall
                   be (x) the return of the Earnest Money (with interest at the
                   prime rate of interest of Chase Bank) and (y) the payment by
                   Seller to Buyer of $10,000,000.00 in recognition of the
                   significant expenditure of executive time and resources
                   incurred by Buyer in connection with the negotiation of this
                   Agreement and investigation of the transactions contemplated
                   hereby and in light of the difficulty in calculating the
                   value of such executive time and resources.

         6.2.5     Termination Pursuant to Sections 5.8 and 6.1. If this
                   Agreement is terminated by either party pursuant to Section
                   5.8 or 6.1 hereof, then Seller shall return the Earnest Money
                   (with interest at the prime rate of interest of Chase Bank)
                   promptly, and neither Party shall have any further rights,
                   duties or obligations under this Agreement.

ARTICLE 7. CONDITIONS OF CLOSING AND CLOSING.

7.1      Conditions to Closing of Buyer. The obligation of Buyer to close the
         transactions contemplated in this Agreement is subject to the
         satisfaction of the following conditions.

         7.1.1     Representations, Warranties and Covenants. All
                   representations and warranties of Seller contained in this
                   Agreement shall be true, correct, and not misleading in all
                   material respects, and Seller shall have performed and
                   satisfied in all material respects all agreements and
                   covenants required by this Agreement to be performed and
                   satisfied by Seller.

         7.1.2     Consents. Seller shall have obtained and delivered to Buyer
                   all necessary consents for transfer of the Interests, except
                   those which by their nature cannot be requested or obtained
                   until after Closing.

         7.1.3     Lawsuits and Claims. No suit or other proceeding shall be
                   pending or threatened before any court or governmental agency
                   seeking to restrain or prohibit this transaction, or to
                   declare the transaction illegal, or to obtain substantial
                   damages in connection with the transaction contemplated
                   hereby.

         7.1.4     Closing as to Wamsutter. Notwithstanding anything to the
                   contrary set forth in this Agreement, Buyer shall be
                   obligated to close on the Interests owned by Wamsutter if the
                   conditions to closing applicable to Wamsutter and the
                   Interests owned by Wamsutter have been satisfied; provided,
                   however, to the extent that Abraxas and Wamsutter each own an
                   interest in the properties included in the Interests owned by
                   Wamsutter, Wamsutter and Buyer shall agree upon an allocation
                   of the values between the interests in the properties owned
                   by Abraxas and Wamsutter and such allocation will be used to
                   determine the Sale Price to be paid to Wamsutter.

7.2      Conditions to Closing of Seller. The obligation of Seller to close the
         transactions contemplated in this Agreement is subject to the
         satisfaction of the following conditions.

         7.2.1     Representations, Warranties and Covenants. All
                   representations and warranties of Buyer contained in this
                   Agreement shall be true, correct, and not misleading in any
                   and all material respects, and Buyer shall have performed and
                   satisfied in all material respects all agreements and
                   covenants required by this Agreement to be performed and
                   satisfied by Buyer.

         7.2.2     Lawsuits and Claims. No suit or other proceeding shall be
                   pending or threatened before any court or governmental agency
                   seeking to restrain or prohibit this transaction, or to
                   declare this transaction illegal, or to obtain substantial
                   damages in connection with the transaction contemplated
                   hereby.

         7.2.3     Bonds and Insurance. Seller shall have received evidence that
                   Buyer has in place, effective on or before the Closing Date
                   and relating to the ownership of the Interests after the
                   Closing Date (i) all necessary state, federal and local
                   bonds, and (ii) insurance as is reasonable and customary in
                   the industry.

7.3      Closing. The Closing ("Closing") shall occur on or before March 31,
         2000 at 10:00 a.m. ("Closing Date"), at the offices of Thompson &
         Knight LLP, 1200 Smith Street, Suite 3600, Houston, Texas. If the
         transaction fails to close by said date for any reason, Seller shall
         have the unilateral right and option to either extend the Closing Date
         or to terminate the Purchase and Sale Agreement; provided that if
         termination is caused by Seller's breach of a material term of this
         Agreement, termination shall occur under Section 6.2.3 and if Seller
         terminates this Agreement because the transaction fails to close by
         said date or termination of this Agreement is caused by Buyer's breach
         of any material term of this Agreement, termination shall occur under
         Section 6.2.2.

7.4      Actions to Occur at Closing. At Closing the following actions shall
         occur.

         7.4.1     Delivery of Assignment. Seller shall execute, acknowledge and
                   deliver an Assignment and Bill of Sale substantially in the
                   form and substance of Exhibit D attached hereto and made a
                   part hereof for all purposes and such other documents and
                   instruments as may be necessary to effectuate the
                   transactions contemplated by this Agreement, covering all of
                   the Interests to be sold pursuant hereto;

         7.4.2     Delivery of Sale Price. Buyer shall deliver to Seller by wire
                   transfer the total Sale Price as adjusted hereunder, subject
                   to further adjustment after Closing as provided for herein.

         7.4.3     Change of Operatorship Forms. Seller and Buyer shall execute
                   designation of operator forms required by applicable
                   conservation or regulatory agencies and notices to third
                   party working interest owners of the change of ownership.

         7.4.4     Evidence of Bonds. Buyer shall deliver to Seller evidence of
                   its appropriate state and federal plugging bond, surety
                   letter, or letter of credit acceptable to such authority to
                   authorize Buyer's right to conduct operations.

         7.4.5     Possession of the Interests. Seller shall, subject to the
                   terms of any applicable operating agreements and to the
                   provisions hereof, deliver to Buyer exclusive possession of
                   the Interests.

7.5      Post-Closing Obligations. Seller and Buyer shall have the following
         post-closing obligations:

         7.5.1     Delivery of Records. Seller shall provide Buyer, promptly
                   after Closing, at Buyer's sole expense, any maps, reports and
                   other written material relating to the Interests, including
                   without limitation, lease files, property records, contract
                   files, operations files, copies of tax and accounting records
                   and files (other than Seller's income tax returns), well
                   files, core analyses and hydrocarbon analyses, well logs, mud
                   logs, core data, field studies, seismic, geological,
                   geochemical or geophysical data or interpretations thereof
                   ("Records"); however, Seller shall have no obligation to
                   furnish Buyer (i) Seller's income tax returns, or (ii) any
                   data or information which Seller considers confidential or
                   proprietary or which Seller cannot provide Buyer because of
                   third-party restrictions. Buyer agrees to maintain the
                   Records and allow Seller reasonable access thereto for a
                   period of six (6) years after Closing. Buyer shall notify
                   Seller before destroying any Records prior to the expiration
                   of the six (6) year period following closing.

         7.5.2     Recording and Filing. Buyer, within thirty (30) days after
                   the Closing Date, shall (i) record all assignments,
                   conveyances and other instruments that must be recorded to
                   effectuate the transfer of the Interests, (ii) file for
                   approval with the applicable governmental and Tribal agencies
                   all state, federal and Indian transfer and assignment
                   documents for the Interests, and (iii) file with the
                   applicable governmental and Tribal agencies all applications
                   and other documents required for the transfer of permits and
                   operatorship of the Interests. Buyer shall provide Seller a
                   recorded copy of each assignment, conveyance and other
                   recorded instrument, and approved copies of the state and
                   federal transfer and assignment documents, if any, as soon as
                   they are available.

         7.5.3     Change of Operator Requirements. Buyer shall comply with all
                   applicable laws, ordinances, rules and regulations, orders,
                   terms of permits and authorizations of any governmental or
                   Tribal body which may have jurisdiction with respect to the
                   Interests to be transferred hereunder (including, without
                   limitation, the filing with such governmental and Tribal
                   bodies of any and all compliance reports, notices, or other
                   compliance documents which are due after the Closing Date
                   regardless of the period covered by such reports, notices or
                   documents) and shall promptly obtain and maintain all permits
                   and bonds required by public authorities in connection with
                   the Interests.

         7.5.4     Further Assurances. Seller and Buyer agree to execute and
                   deliver from time to time such further instruments and do
                   such other acts as may be reasonably necessary to effectuate
                   the purposes of this Agreement.

ARTICLE 8. ASSUMPTION OF OBLIGATIONS.

8.1      Ownership and Operations. Upon and after Closing, Buyer shall assume
         and perform all the rights, duties, obligations and liabilities of
         ownership and operation of the Interests, including without limitation:
         (i) all of Seller's express and implied obligations and covenants after
         the Effective Date under the terms of the Leases, the Related Contracts
         and all other orders and contracts to which the Interests are subject;
         (ii) responsibility for all royalties, overriding royalties, production
         payments, net profits obligations, rentals, shut-in payments and other
         burdens or encumbrances to which the Interests are subject accruing
         after the Effective Date; (iii) responsibility for compliance with all
         applicable laws, ordinances, rules and regulations pertaining to the
         Interests, and the procurement and maintenance of all permits required
         by public authorities in connection with the Interests after the
         Effective Date; and (iv) all other obligations assumed by Buyer under
         this Agreement. With respect to (i) any part of the Interests for which
         Buyer is not duly elected operator, or (ii) any non-operating interests
         in the Interests being transferred to Buyer under this Agreement, Buyer
         shall assume full responsibility and liability for that portion of the
         foregoing rights, duties, obligations and liabilities for which
         non-operators are responsible. Seller remains responsible for all
         costs, expenses and liabilities incurred by Seller in connection with
         the ownership or operation of the Interests before the Effective Date,
         except (i) those for which Buyer indemnifies Seller, (ii) those arising
         out of specific matters or Claims for which Buyer has received an
         adjustment to the Sale Price or (iii) those which Buyer assumes in this
         Agreement.

8.2      Plugging and Abandonment Obligations. From and after the Effective
         Date, Buyer assumes full responsibility and liability for the following
         obligations related to the Interests (the "Plugging and Abandonment
         Obligations"): (i) plugging, replugging and abandoning the wells
         located on the Interests and any wells drilled after the Effective
         Date; (ii) removing and disposing of all structures and equipment
         located on or comprising part of the Interests; (iii) the necessary and
         proper capping and burying of all associated flow lines located on or
         comprising, part of the Interests; (iv) restoring the leasehold
         premises of the Interests, both surface and subsurface, to the
         condition they were in before commencement of oil and gas operations,
         as may be required by applicable laws, regulation or contract; and (v)
         any necessary disposal of Interests contaminated by naturally occurring
         radioactive material ("NORM"). Buyer's obligations under this Section
         8.2 include without limitation obligations arising from contractual
         requirements and demands made by authorized regulatory bodies or
         parties claiming a vested interest in the Interests. Buyer shall obtain
         a performance bond, or increase its existing performance bond, to cover
         its obligations under this Section 8.2 in at least the minimum amount
         required by state or federal law, rule or regulation. Buyer shall
         conduct all plugging, replugging, abandonment, removal, disposal and
         restoration operations in a good and workmanlike manner and in
         compliance with all applicable laws and regulations. With respect to
         any non-operating interests in the Interests being transferred to Buyer
         under this Agreement, Buyer shall assume full responsibility and
         liability, from and after the Effective Date, for that portion of the
         Plugging and Abandonment Obligations for which non-operators are
         responsible. Notwithstanding anything to the contrary contained herein,
         Seller shall be responsible for all costs of such plugging and other
         operations actually incurred prior to the Effective Date.

8.3      Environmental Obligations. From and after the Effective Date, except
         for the Excluded Environmental Obligations (defined below), Buyer
         assumes full responsibility and liability for the following
         occurrences, events and activities on or related to the Interests (the
         "Environmental Obligations"), whether arising before or after the
         Effective Date: (i) environmental pollution or contamination, including
         pollution of the soil, groundwater or air; (ii) underground injection
         activities and waste disposal onsite or offsite; (iii) cleanup
         responses, and the cost of remediation, control or compliance with
         respect to surface and subsurface pollution caused by spills, pits,
         ponds or lagoons; (iv) failure to comply with applicable land use,
         surface disturbance, licensing or notification requirements; (v)
         violation of environmental or land use laws, rules, regulations,
         demands or orders of appropriate state or federal regulatory agencies.
         With respect to any non-operating interests in the Interests being
         transferred to Buyer under this Agreement, Buyer agrees to assume full
         responsibility and liability, from and after the Effective Date, for
         that portion of the Environmental Obligations for which non-operators
         are responsible. The Environmental Obligations assumed by Buyer shall
         not include any Environmental Obligations (i) for occurrences, events
         and activities on or related to the Interests which arise before the
         Effective Date, (ii) the liability for which is asserted by third
         parties unaffiliated with Buyer and (iii) the liability for which is
         asserted in writing to Seller on or before the date nine (9) months
         after the Effective Date (such Environmental Obligations are herein
         called the "Excluded Environmental Obligations").

ARTICLE 9.  INDEMNITIES AND INSURANCE.

9.1      Application of Indemnities. Unless this Agreement expressly provides to
         the contrary, the indemnities set forth in this Agreement apply
         regardless of whether: (i) the indemnified party (or its employees,
         agents, contractors, successors, or assigns) causes, in whole or part,
         an indemnified Claim; (ii) an indemnified Claim arises out of or
         results from the indemnified party's (or its employees, agents,
         contractors, successors or assigns) sole or concurrent negligence; or
         (iii) the indemnified party (or its employees, agents, contractors,
         successors or assigns) is deemed to be strictly liable, in whole or
         part, for an indemnified Claim. Notwithstanding the previous sentence,
         a party's obligation to indemnify and hold the other party harmless
         under this Agreement does not apply to the extent such obligation
         relates to a loss or liability resulting from the gross negligence or
         willful misconduct of the party with the right to be indemnified and
         held harmless. All indemnities set forth in this Agreement in favor of
         the Seller, shall extend to the Seller Indemnified Group and cover the
         acts and omissions of the Seller Indemnified Group, and if in favor of
         the Buyer, shall extend to the officers, directors, employees,
         affiliates, contractors, successors and assigns of the Buyer (the
         "Buyer Indemnified Group"), and cover the acts and omissions of the
         Buyer Indemnified Group. With respect to any Claim, the indemnified
         party shall have the right, but not the obligation, to participate
         fully in the Defense of the Claim.

9.2      Buyer's Indemnity. From and after the Closing Date, Buyer shall
         indemnify, defend and hold the Seller Indemnified Group harmless from
         and against any and all Claims caused by, resulting from and incident
         to: (i) Buyer's ownership or operation of the Interests after the
         Effective Date, including, without limitation, the obligations assumed
         by Buyer in Section 8.1; (ii) all Plugging and Abandonment Obligations
         arising before or after the Effective Date as provided in Section 8.2;
         (iii) all Environmental Obligations, other than any Excluded
         Environmental Obligations, whether arising before or after the
         Effective Date; (iv) Buyer's disbursement of production proceeds from
         the Interests accruing after the Effective Date, including suspended
         proceeds; (v) any obligations for broker's fees incurred by Buyer in
         connection with the purchase of the Interests; (vi) any failure by
         Buyer to comply with applicable laws, ordinances, rules and regulations
         pertaining to the Interests, and procure and maintain permits required
         by public authorities in connection with the Interests; (vii) any
         violation by Buyer of state or federal security laws, or Buyer's
         dealings with its partners, investors, financial institutions and other
         third parties with respect to this Agreement, (viii) any oil and gas
         production imbalances associated with the Interests the Buyer assumes
         pursuant to Section 12.17, and (ix) Buyer's operation of any Interest
         that is reconveyed or reassigned to Seller pursuant to Sections 5.4.2
         or 5.5.3(ii) due to failure to obtain Consents or government approvals.

9.3      Seller's Indemnity. Seller shall indemnify, defend and hold the Buyer
         Indemnified Group harmless from and against any and all Claims caused
         by, resulting from or incidental to: (i) Seller's ownership or
         operation of the Interests before the Effective Date, except to the
         extent such obligations are assumed by Buyer in Article 8 and Section
         9.2 ; (ii) Seller's disbursement of production proceeds from the
         Interests accruing before the Effective Date; (iii) any failure by
         Seller to comply with applicable laws, ordinances, rules and
         regulations pertaining to the Interests (exclusive of Environmental
         Obligations), and procure and maintain permits required by public
         authorities in connection with the Interests for periods prior to the
         Effective Date, and (iv) any Excluded Environmental Obligation. The
         indemnity set forth above pursuant to Section 9.3(i), 9.3(iii) and
         9.3(iv) shall survive for a period of two (2) years from and after the
         Effective Date. The indemnity set forth in Section 9.3(ii) shall
         survive for the applicable statute of limitations, if any.
         Notwithstanding anything to the contrary set forth in this Agreement,
         Seller shall have no liability to Buyer or the Buyer Indemnified Group
         or obligation to indemnify Buyer or the Buyer Indemnified Group for any
         specific matter or Claim for which Buyer has received an adjustment to
         the Sale Price including, without limitation, any adjustment pursuant
         to Sections 2.2, 2.3, 5.3.3, 5.4.2, 5.5.2, 5.5.3, 5.6.4, 5.7.2 and
         5.8.1. Notwithstanding anything to the contrary set forth in this
         Agreement, Seller's and the Seller Indemnified Group's aggregate
         liability for any Claims pursuant to this Section 9.3 shall not exceed
         $10,000,000.00.


9.4      NORM. BUYER ACKNOWLEDGES THAT IT HAS BEEN INFORMED THAT OIL AND GAS
         PRODUCING FORMATIONS CAN CONTAIN NATURALLY OCCURRING RADIOACTIVE
         MATERIAL (NORM). SCALE INFORMATION OR SLUDGE DEPOSITS CAN CONCENTRATE
         LOW LEVELS OF NORM ON EQUIPMENT AND OTHER PROPERTY. SOME OR ALL OF THE
         EQUIPMENT, MATERIALS AND OTHER PROPERTY SUBJECT TO THIS AGREEMENT MAY
         HAVE LEVELS OF NORM ABOVE BACKGROUND LEVELS. A HEALTH HAZARD MAY EXIST
         IN CONNECTION WITH THIS EQUIPMENT, MATERIALS AND OTHER PROPERTY.
         THEREFORE, BUYER MAY NEED TO FOLLOW SAFETY PROCEDURES WHEN HANDLING
         THIS EQUIPMENT, AND OTHER PROPERTY. Buyer shall indemnify, defend and
         hold Seller harmless from and against any and all Claims (including
         without limitation cleanup and disposal costs) arising out of the
         existence of NORM on any Interests transferred to Buyer under this
         Agreement.

9.5      Limitations on Liabilities. Neither Seller nor Buyer shall have any
         obligation or liability under this Agreement or in connection with or
         with respect to the transactions contemplated in this Agreement for (i)
         any breach, misrepresentation or noncompliance with respect to any
         representation, warranty, covenant or obligation if such breach,
         misrepresentation or noncompliance shall have been waived by the other
         party, (ii) any misrepresentation or breach of warranty if such other
         party had knowledge of the relevant facts at or before Closing or (iii)
         any misrepresentation or breach of warranty if such other party should
         have known, from the public records of the relevant facts at or before
         Closing. Buyer covenants and agrees that it shall notify Seller of any
         inaccuracy in any of Seller's representations and warranties set forth
         in this Agreement discovered by Buyer during the due diligence process.


ARTICLE 10.  TAXES AND EXPENSES.

10.1     Recording and Transfer Expenses. Buyer shall pay all costs of recording
         and filing (i) the assignments delivered hereunder for the Interests,
         (ii) all state, federal and Indian transfer and assignment documents,
         (iii) all applications and other documents required for the transfer of
         permits and operatorship of the Interests, and (iv) all other
         instruments.

10.2     Ad Valorem, Real Property and Personal Property Taxes. All Ad Valorem
         Taxes, Real Property Taxes, Personal Property Taxes, and similar
         obligations ("Property Taxes") on the Interests are Seller's obligation
         for periods before the Effective Date and Buyer's obligation for
         periods on and after the Effective Date. If Property Taxes for the
         current year have not been assessed and paid as of the Closing Date,
         the Buyer shall file all required reports and returns incident to the
         Property Taxes and pay the Property Taxes for the current tax year and
         subsequent periods. The Seller will reimburse the Buyer promptly for
         the Seller's proportionate share of these taxes, prorated as of the
         Effective Date, upon receipt of evidence of the Buyer's payment of the
         taxes. If Property Taxes for the current tax year have been assessed
         and paid as of the Closing Date, the Buyer will reimburse the Seller
         for its proportionate share of these taxes, prorated as of the
         Effective Date, as a closing adjustment to the Sale Price, as provided
         in Section 2.2 of this Agreement.

10.3     Severance Taxes. Seller shall bear and pay all severance or other taxes
         measured by Hydrocarbon production from the Interests, or the receipt
         of proceeds therefrom, to the extent attributable to production from
         the Interests before the Effective Date. Buyers shall bear and pay all
         such taxes on production from the Interests on and after the Effective
         Date. Seller shall withhold and pay on behalf of Buyer all such taxes
         on production from the Interests between the Effective Date and the
         Closing Date, and the amount of any such payment shall be reimbursed to
         Seller as a closing adjustment to the Sale Price pursuant to Section
         2.2 hereof. If either Party pays taxes owed by the other, upon receipt
         of evidence of payment the nonpaying party will reimburse the paying
         Party promptly for its proportionate share of such taxes.

10.4     Tax and Financial Reporting.

         10.4.1    IRS Form 8594. If the Parties mutually agree that a filing of
                   Form 8594 is required, the Parties will confer and cooperate
                   in the preparation and filing of their respective forms to
                   reflect a consistent reporting of the Allocated Values of the
                   Interests.

         10.4.2    Financial Reporting. Seller and Buyer agree to furnish to
                   each other at Closing or as soon thereafter as practicable
                   any and all information and documents reasonably required to
                   comply with tax and financial reporting requirements and
                   audits.

         10.4.3    Intangible Drilling Cost Recapture. Seller and Buyer agree to
                   furnish to each other, at Closing or as soon as practicable
                   thereafter, data relevant to deductions claimed, pursuant to
                   Section 263(c) of the Internal Revenue Code of 1986, for
                   intangible drilling costs related to the Interests, and any
                   other relevant data to allow each Party to calculate the
                   carryover intangible drilling costs associated with the
                   Interests that is subject to potential recapture under
                   Section 1254(a) of the Internal Revenue Code of 1986.

10.5     Sales and Use Taxes. Buyer shall be responsible for all sales, use and
         similar taxes applicable to the transfer of the Interests. If Seller is
         required to pay such sales, use or similar taxes on behalf of Buyer,
         Buyer will reimburse Seller at Closing for all sale and use taxes due
         and payable on the transfer of the Interests to Buyer. Buyer shall
         indemnify Seller and hold Seller harmless from any liability,
         including, without limitation, penalties, interest and attorneys' fees,
         arising out of Buyer's failure to pay Seller at Closing the amount
         equal to all state and local taxes payable by Seller on the transfer of
         ownership of any tangible personal property.

10.6     Income Taxes. Each Party shall be responsible for its own state and
         federal income taxes, if any, as may result from this transaction.

10.7     Incidental Expenses. Each Party shall bear its own respective expenses
         incurred in connection with the negotiation and Closing of this
         transaction, including its own consultants' fees, attorneys' fees,
         accountants' fees, and other similar costs and expenses.


ARTICLE 11.  OPERATIONS DURING THE TRANSITION PERIOD.

11.1     Operations by Seller. Seller shall continue to operate that portion of
         the Interests for which Seller is the operator during the period
         between the Effective Date and 7:00 a.m., local time where the
         Interests are located, on the first day of the month following the
         month in which Closing occurs, or such other date as Seller and Buyer
         may agree in writing or may be required by the applicable operating
         agreement (the "Interim Period"). However, Seller will have no
         obligation to operate any portion of the Interests after the Interim
         Period except as provided for in Section 11.4 of this Agreement. Seller
         shall continue to operate the Interests during the Interim Period as a
         reasonably prudent operator, in a good and workmanlike manner with due
         diligence and dispatch, in accordance with good oilfield practice, and
         in compliance with , applicable laws and regulations, and all
         applicable lease and operating agreements and other applicable
         agreements but in no event shall it have any liability for losses
         sustained or liabilities incurred except such as may result from gross
         negligence or willful misconduct. Transfer of operations for the
         Interests is controlled by the applicable operating agreements and
         governmental regulatory requirements. Buyer shall have no indemnity
         obligations to Seller arising out of Seller's operations during the
         Interim Period.

11.2     Buyer's Approval. In conducting operations during the Interim Period
         after the Closing Date, Seller shall, except for emergency action taken
         in the face of serious risk of life, property or the environment, (i)
         obtain Buyer's prior written approval of all expenditures and proposed
         contracts and agreements, or amendments to existing contracts and
         agreements relating to the Interests that involve individual
         commitments of more than $50,000.00; (ii) consult with and advise Buyer
         regarding all material matters concerning the operation, management and
         administration of the Interests; and (iii) obtain Buyer's written
         approval before voting under any operating, unit, joint venture or
         similar agreement. Seller shall notify Buyer of any emergency action
         taken, and to the extent reasonably practicable, obtain Buyer's prior
         approval of such actions. However, except for emergency action that
         must be taken in the face of serious risk of life, property or
         environment, Seller will have no obligation to undertake any actions
         with respect to the Interests that are not required in the course of
         the normal operation of the Interests.

11.3     Operation of Certain Interests After Interim Period. Buyer and Seller
         recognize that Seller may remain the record title owner of certain
         portions of the Interests after the Interim Period, pending receipt of
         government transfer approvals, as provided in Section 5.4.1. If Seller
         is required to remain the operator of the affected Interests until the
         required approvals are obtained, then Seller will operate the affected
         Interests during the period prior to receiving such approvals, as
         provided in Sections 11.1 and 11.2.


ARTICLE 12.  MISCELLANEOUS.

12.1     Notices. All communications required or permitted under this Agreement
         shall be in writing and any communications or delivery hereunder shall
         be deemed to have been fully made if actually delivered, or if mailed
         by registered or certified mail, postage prepaid, to the address set
         forth below:

                                     SELLER

                                    Abraxas Petroleum Corporation
                                    500 North Loop 1604, East
                                    Suite 100
                                    San Antonio, Texas 78232
                                    Attention: Robert Carington
                                    Phone:  210-490-4788
                                    Fax:  210-490-8816

                                    Abraxas Wamsutter L.P.
                                    500 North Loop 1604, East
                                    Suite 100
                                    San Antonio, Texas 78232
                                    Attention: Robert Carington
                                    Phone:  210-490-4788
                                    Fax:  210-490-8816


                                      BUYER

                                    Samson Resources Company
                                    Samson Plaza
                                    Two West Second Street
                                    Tulsa, Oklahoma 74103-3103
                                    Attention: Robert C. Bilger
                                    Phone:  918-591-1297
                                    Fax:  918-591-1711

                  Copy to:          Jack A. Canon,
                                    Senior Vice President/General Counsel
                                    Samson Resources Company
                                    Samson Plaza
                                    Two West Second Street
                                    Tulsa, Oklahoma  74103-3103
                                    Phone:  918-591-1009
                                    Fax:    918-591-1718

12.2     Further Assurance. After Closing, each of the Parties shall execute,
         acknowledge and deliver to the other such further instruments, and take
         such other actions as may be reasonably necessary to carry out the
         provisions of this Agreement. However, Buyer shall assume all
         responsibility for notifying the purchaser of oil and gas production
         from the Interests, and such other designated persons who may be
         responsible for disbursing payments for the purchase of such
         production, of the change of ownership of the Interests. Buyer shall
         take all actions necessary to effectuate the transfer of such payments
         to Buyer. After final settlement has been made, additional proceeds
         received by or expenses paid by either Buyer or Seller on behalf of the
         other party shall be settled by invoicing such Party for expenses paid
         or remitting to such other Party any proceeds received.

12.3     Removal of Signs. Seller may either remove its name and signs from the
         Seller-operated Interests or require Buyer to do so. Buyer grants
         Seller a right of access to the Interests to remove Seller's signs and
         name from all wells, facilities and Leases, or to confirm that Buyer
         has done so. If Seller's name or signs remain on the Interests after
         Closing, Buyer will promptly, but no later than required by applicable
         rules and regulations or thirty (30) days after Closing, whichever is
         earlier, remove all remaining signs and references to Seller and erect
         or install signs complying with applicable rules and regulations,
         including signs showing the Buyer as Operator of the Interests.

12.4     Securities Laws. The solicitation of offers and the sale of the
         Interests by Seller have not been registered under any securities laws.
         Buyer represents that at no time has it been presented with or
         solicited by or through any public promotion or any form of advertising
         in connection with this transaction. Buyer represents that it intends
         to acquire the Interests for its own benefit and account and that it is
         not acquiring the Interests with the intent of distributing fractional,
         undivided interests that would be subject to regulation by federal or
         state securities laws, and that if it sells, transfers, or otherwise
         disposes of the Interests or fractional, undivided interests, it will
         do so in compliance with applicable federal and state securities laws.

12.5     Due Diligence. Buyer represents that it has performed, or will perform
         prior to Closing, sufficient review and due diligence with respect to
         the Interests, which includes reviewing well-data, title, and other
         files, and performing necessary evaluations, assessments, and other
         tasks involved in evaluating the Interests, to satisfy its requirements
         completely and to enable it to make an informed decision to acquire the
         Interests under the terms of this Agreement.

12.6     Material Factor. Buyer acknowledges that Buyer's representations under
         Sections 12.4 and 12.5 are a material inducement to Seller to enter
         into this Agreement with, and close the sale to, Buyer.

12.7     Press Release. There shall be no press release or public communication
         concerning this purchase and sale by either Party, except as required
         by law or with the written consent of the Party not originating said
         release or communication. The Parties will endeavor to consult each
         other in a timely manner on all press releases required by law.

12.8     Entire Agreement. This instrument states the entire agreement between
         the Parties and may be supplemented, altered, amended, modified or
         revoked by writing only, signed by all Parties. This Agreement
         supersedes any prior agreements between the parties concerning sale of
         the Interests, except that any confidentiality agreement shall continue
         as provided in Section 5.1 hereof. The headings are for guidance only
         and shall have no significance in the interpretations of this
         Agreement.

12.9     Assignability. This Agreement and the rights and obligations hereunder
         shall not be assignable or delegable by either Party hereto without the
         prior written consent of the other Party.

12.10    Survival. Unless expressly limited or otherwise provided in this
         Agreement, all of the representations, warranties, and agreements of or
         by the Parties hereto shall survive the execution and delivery of the
         Assignment and Bill of Sale until nine (9) months after the Effective
         Date.

12.11    Tax Deferred Exchange Election By Seller. Seller may, at or before the
         Closing, designate in writing one or more properties which Buyer will
         acquire and trade to Seller for the Interests (herein collectively
         called the "Exchange Property"). In the event Seller has not found a
         suitable Exchange Property prior to the Closing, Seller may elect, by
         notice to Buyer delivered on or before the Closing Date, to have the
         Sale Price paid to a qualified intermediary until Seller has designated
         the Exchange Property. The Exchange Property shall be designated by
         Seller and acquired by the qualified intermediary within the time
         periods prescribed in Section 1031(a)(3) of the Internal Revenue Code
         of 1986, as amended (the "Code"), and shall thereupon be conveyed to
         Seller. In the event Seller fails to designate and the qualified
         intermediary fails to acquire the Exchange Property within such time
         periods, the agency or trust shall terminate and the proceeds then held
         by the qualified intermediary shall be paid immediately to Seller. The
         rights and responsibilities of Seller, Buyer and the qualified
         intermediary shall be documented with such agreements containing such
         terms and provisions as shall be determined by Seller to be necessary
         to accomplish a tax free exchange under Section 1031 of the Code
         subject, however, to the limitations on costs and liabilities of Buyer
         set forth below. If Seller makes a tax deferred exchange election,
         Buyer shall not be obligated to pay any additional costs or incur any
         additional obligations in the acquisition of the Interests. Seller
         shall indemnify, defend and hold Buyer harmless from and against any
         and all Claims to the extent same are the result of or are attributable
         to (i) any transactions undertaken by Seller pursuant to this Section
         12.11 and (ii) any act or omission of Seller relating to any
         transaction contemplated by this Section 12.11.

12.12    Tax Deferred Exchange Election by Buyer. Buyer may, at or before the
         Closing, acquire the Interests as a like-kind exchange pursuant to
         Section 1031 of the Internal Revenue Code of 1986, as amended, and the
         regulations promulgated thereunder, with respect to any or all of the
         Interests. The rights and responsibilities of Seller, Buyer and the
         qualified intermediary shall be documented with such agreements
         containing such terms and provisions as shall be determined by Buyer to
         be necessary to accomplish a tax free exchange under Section 1031 of
         the Code subject, however, to the limitations on costs and liabilities
         of Seller set forth below. If Buyer makes a tax deferred exchange
         election, Seller shall not be obligated to pay any additional costs or
         incur any additional obligations in the sale of the Interests. Buyer
         shall indemnify, defend and hold Seller harmless from and against any
         and all Claims to the extent same are the result of or are attributable
         to (i) any transactions undertaken by Buyer pursuant to this Section
         12.12 and (ii) any act or omission of Buyer relating to any transaction
         contemplated by this Section 12.12.

12.13    Severability. If any provision of this Agreement is found by a court of
         competent jurisdiction to be invalid or unenforceable, that provision
         will be deemed modified to the extent necessary to make it valid and
         enforceable and if it cannot be so modified, it shall be deemed deleted
         and the remainder of the Agreement shall continue and remain in full
         force and effect.

12.14    Counterparts. This Agreement may be executed in counterparts, each of
         which shall constitute an original and all of which shall constitute
         one document.

12.15    Governing Law. This Agreement is governed by and must be construed
         according to the laws of the State of Texas, excluding any
         conflicts-of-law rule or principle that might apply the law of another
         jurisdiction.

12.16    Dispute Resolution. If a dispute arises between the Parties under this
         Agreement and cannot be resolved by negotiation, the Parties agree to
         submit the dispute to mediation before resorting to litigation. Either
         Party may request mediation of a dispute by sending a written request
         to the other Party. If either Party requests mediation of a dispute,
         the Parties agree to choose a mutually acceptable mediator, promptly
         begin mediation of the dispute, and share the costs of all mediation
         services equally. Each Party agrees to have present at all mediation
         conferences at least one individual who has authority to settle the
         dispute. Notwithstanding this agreement to mediate disputes, either
         Party may file a complaint for statute of limitation or venue reasons,
         or seek a preliminary injunction or other provisional judicial relief,
         if in its sole judgment such action is necessary to avoid irreparable
         damage or to preserve the status quo. Despite any such protective
         action, the Parties will continue to try to resolve the dispute by
         negotiation or mediation.

12.17    Production Imbalances. Set forth in Exhibit E attached hereto and made
         a part hereof for all purposes is a listing of all gas imbalance
         volumes measured in MMBTUs and liquid imbalance volumes measured in
         gallons and the aggregate net volume of overproduction or
         underproduction, as applicable, attributable to the Interests as of the
         Effective Date. The Parties acknowledge that the imbalances assumed at
         Closing may be incorrect, and Buyer and Seller agree that the Sale
         Price will be adjusted, for any differences at $2.00 per mmbtu for gas
         imbalances and $.35 per gallon for liquid imbalances. The right to
         claim an adjustment under this Section 12.17 will expire 150 days after
         closing. Buyer will be solely responsible for any liability and solely
         entitled to any benefit from production imbalances relating to the
         Interests and arising from and after the Closing Date.

12.18    Exhibits. In the event of a conflict between the provisions of the
         Exhibits attached to this Agreement and the foregoing provisions of
         this Agreement, the provisions of this Agreement shall take precedence.
         The omission of certain provisions of this Agreement from any
         conveyance delivered pursuant hereto does not constitute a conflict
         between this Agreement and said conveyance document and will not effect
         a merger of the omitted provisions.

12.19    Obligations of Seller. Notwithstanding anything to the contrary set
         forth in this Agreement, (i) the obligations of Wamsutter under this
         Agreement shall be several and not joint and several and shall be the
         same as if Wamsutter had entered into a separate agreement covering
         only the Interests owned by Wamsutter being sold hereunder and (ii) the
         obligations of Abraxas under this Agreement shall be joint and several
         with those of Wamsutter.

12.20    Maintenance of Sales Proceeds. Wamsutter covenants and agrees that it
         shall maintain $5,000,000.00 of the Sale Price in an account in the
         name of Wamsutter until the date which is two (2) years after the
         Effective Date and, in the event that Buyer makes a Claim or Claims
         prior to the date which is two (2) years after the Effective Date,
         until such time as such Claim or Claims are finally determined.


BUYER ACKNOWLEDGES THAT IT HAS READ THIS AGREEMENT IN ITS ENTIRETY, AND THAT IT
UNDERSTANDS ALL THE PROVISIONS SET FORTH THEREIN, INCLUDING, BUT NOT LIMITED TO,
THOSE PROVISIONS LOCATED IN ARTICLE 9 WHEREIN BUYER AGREES TO INDEMNIFY SELLER
IN CERTAIN CIRCUMSTANCES EVEN THOUGH THE LOSSES, COSTS, EXPENSES AND/OR DAMAGES
MAY HAVE BEEN CAUSED BY THE SOLE, CONCURRENT, ACTIVE OR PASSIVE NEGLIGENCE OF
THE SELLER, ITS EMPLOYEES , OR ANY THIRD PARTY AND EVEN THOUGH THE SELLER MAY BE
RESPONSIBLE FOR SUCH LOSSES, COSTS, EXPENSES AND/OR DAMAGES UNDER ANY THEORY OF
LAW INCLUDING BUT NOT LIMITED TO STRICT LIABILITY.




<PAGE>


EXECUTED as of the date first above mentioned.

SELLER:

ABRAXAS PETROLEUM CORPORATION


By:
Title:


ABRAXAS WAMSUTTER L.P.
By:Wamsutter Holdings, Inc., General Partner


Name:
Title:


BUYER:

SAMSON RESOURCES COMPANY



By:
Title:



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