3TEC ENERGY CORP
8-K/A, 1999-12-17
OIL & GAS FIELD EXPLORATION SERVICES
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM 8-K/A

                             Current Report Pursuant
                          to Section 13 or 15(d) of the

                         Securities Exchange Act of 1934

                Date of Report (date of earliest event reported):

                                NOVEMBER 23, 1999

                             3TEC ENERGY CORPORATION
             (Exact name of Registrant as specified in its charter)

DELAWARE                            0-21702                76-0624573
(State or other jurisdiction        (Commission File       (IRS Employer
of incorporation)                   Number)                Identification No.)

          Two Shell Plaza, 777 Walker, Suite 2400, Houston, Texas 77002
              (Address of principal executive offices and zip code)

                                 (713) 222-6275
               Registrant's telephone number, including area code

                          MIDDLE BAY OIL COMPANY, INC.
                  1221 Lamar, Suite 1020, Houston, Texas 77010
                             Former Name and Address

ITEM 7 FINANCIAL STATEMENTS AND EXHIBIT

         As discussed in Item 2 of Form 8-K filed with the commission on
December 6, 1999, on November 23, 1999 Middle Bay Oil Company, Inc., now known
as 3TEC Energy Corporation (the "Company") closed the previously announced
transaction to purchase properties and interests owned by a group of private
sellers which is managed by Floyd Oil Company (the "Floyd Oil Properties"). The
Company wishes to amend the Form 8-K filed on December 6, 1999 by filing the
Real Estate Exchange Agreement by and between Middle Bay Oil Company, Inc. and
Floyd Oil Company as an exhibit.

         In addition, as discussed in Item 5 of Form 8-K filed with the
commission on

<PAGE>

December 6, 1999, concurrent with the closing of the purchase of the Floyd
Oil Properties, Middle Bay entered into a new $250 million credit facility
with Bank One, Texas, N.A., as agent and Union Bank of California, Wells
Fargo Bank, CIBC, Inc. and Bank of Nova Scotia as participating lenders. The
Company wishes to amend the Form 8-K filed on December 6, 1999 by filing the
Restated Credit Agreement by and among Middle Bay Oil Company, Inc., Enex
Resources Corporation and Middle Bay Production Company, Inc. as borrowers,
and Bank One, Texas, N.A. and other institutions as lenders as an exhibit.

(c) Exhibits.     The following exhibits are filed herewith:

2.1      Real Estate Exchange Agreement by and between Middle Bay Oil Company,
         Inc. and Floyd Oil Company.

10.1     Restated Credit Agreement by and among Middle Bay Oil Company, Inc.,
         Enex Resources Corporation and Middle Bay Production Company, Inc. as
         borrowers, and Bank One, Texas, N.A. and other institutions as lenders.

                                   SIGNATURES

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

                                            3TEC Energy Corporation
                                            (Registrant)

Date: December 17, 1999                     By: /s/ Floyd C. Wilson
                                            Floyd C. Wilson
                                            President, Chief Executive Officer
                                            and Chairman of the Board

EXHIBIT INDEX:  The following exhibits are filed herewith and are incorporated
herein by reference:

2.1      Real Estate Exchange Agreement by and between Middle Bay Oil Company,
         Inc. and Floyd Oil Company.

10.1     Restated Credit Agreement by and among Middle Bay Oil Company, Inc.,
         Enex Resources Corporation and Middle Bay Production Company, Inc. as
         borrowers, and Bank One, Texas, N.A. and other institutions as lenders.


<PAGE>

Exhibit 2.1
                            REAL ESTATE EXCHANGE AGREEMENT


     This Real Estate Exchange Agreement ("Floyd Exchange Agreement" or
"Agreement") is made and entered into as of the 23rd day of November, 1999, by
and between Middle Bay Oil Company, Inc., an Alabama Corporation ("Middle Bay"),
and Floyd Oil Company, a Texas Corporation ("FOC"), (Middle Bay and FOC are
sometimes collectively referred to as "Parties") with respect to the following:

     WHEREAS, FOC has been in the business of acquiring oil and gas properties
on its own behalf and on behalf of various investors ("Investors") since 1986
and since that time FOC has formed five real estate acquisition programs and
certain incremental programs which have acquired oil and gas real estate
interests ("Floyd Programs"); and

     WHEREAS, the Floyd Programs contain perpetual real estate mineral interests
which are held in a variety of forms including working interests in oil and gas
properties, mineral interests held through partnerships, real estate interests
held through perpetual overriding royalty interests which burden working
interests held by FOC, and royalty and overriding royalty interests; and

     WHEREAS, Middle Bay has approached FOC as to the possibility of acquiring
all of the mineral properties managed by FOC under the Floyd Programs and FOC
has provided Middle Bay with the names of the Investors; and

     WHEREAS, FOC has advised Middle Bay that the Floyd Programs own interests
in three  properties which have been managed by FOC known as the Anadarko
Royalty, the Quinoco Royalty and the Sacatosa Royalty ("Royalty Properties");
and

     WHEREAS, FOC has advised Middle Bay that if Middle Bay were able to acquire
all of the beneficial mineral interests owned by the Investors in the Floyd
Programs (other than those mineral interests owned by FOC), FOC would be willing
to exchange the Minerals it owns in the Floyd Programs (but not including the
interest FOC owns in the Royalty Properties) for the interest in the Royalty
Properties acquired by Middle Bay from the Investors so that after the exchange
FOC will own all of the interests in the Royalty Properties; and

     WHEREAS, Middle Bay is obtaining commitments to purchase all of the
Minerals and beneficial interests in Minerals held by Investors and is willing
to exchange the interests it acquires in the Royalty Properties and related land
records (herein the interests acquired by Middle Bay in the Royalty Properties
will be sometimes referred to as the "Royalty Interests")  with FOC for the
Minerals owned

<PAGE>

by FOC in the Floyd Programs (other than the interests owned by FOC in the
Royalty Properties) in transactions qualifying for nonrecognition of gain or
loss under Internal Revenue Code 1986 (as amended "Code") Section 1031 and
the Regulations published thereunder;

     NOW, THEREFORE, in consideration of the foregoing, the parties agree as
follows:

                                     DEFINITIONS:

     "ACQUIRED FLOYD PROGRAM ASSETS" means all right, title, and interest in and
to all of the Minerals (except for the interest owned in the Royalty Properties)
owned by FOC as of the Closing Date, consisting of all of its (a) real property
mineral interests, leaseholds and subleaseholds therein, improvements, fixtures,
and fittings thereon, and easements, rights-of-way, and other appurtenants
thereto, land records and data (except for the land records and other records
pertaining to the Royalty Properties), (b) leases, subleases, and rights
thereunder; and (c) all  oil and gas properties and hydrocarbons (except for the
interest in the Royalty Properties) owned by FOC and connected with the Floyd
Programs.

     "AFFILIATE" means with respect to FOC, Floyd Operating Company, Floyd
Equity IV Corporation, Floyd IV Corporation and Alexander G. Floyd.  With
respect to Middle Bay, Affiliate has the meaning set forth in Rule 12b-2 of the
regulations promulgated under the Securities Exchange Act.

     "ASSUMED LIABILITIES" means all Liabilities and obligations of FOC or its
Affiliates connected with or incurred in connection with the Acquired Floyd
Program Assets or Other Assets including obligations incurred under contracts,
leases, licenses, and other arrangements connected with the Acquired Floyd
Program Assets or Other Assets either (i) to furnish goods, services, and other
non-cash benefits to another party either before or after the Closing or (ii) to
pay for goods, services, and other non-cash benefits that another party
furnishes either before or after the Closing.

     "CLOSING DATE" has the meaning set forth in Section 2.1 below.

     "EFFECTIVE DATE" means January 1, 1999.

     "GOOD TITLE" means the title to the property shall be acceptable to a
prudent and careful purchaser of oil and gas properties, giving consideration to
the nature of the properties being purchased in the particular transaction and
the nature of the transaction.

     "INTELLECTUAL PROPERTY" means those items related to the Acquired Floyd

<PAGE>

Program Assets consisting of:  (a) all copyrightable works, all copyrights, and
all applications, registrations, and renewals in connection therewith, (b) all
geophysical data, seismic data, trade secrets and confidential business
information, (c) computer software (including data and related documentation),
(d) copies and tangible embodiments thereof (in whatever form or medium) other
than any Intellectual Property associated with or connected with the name Floyd
Oil Company or Alexander G. Floyd.

     "KNOWLEDGE" with respect to any party means actual knowledge of the officer
making such representation which presumes reasonable investigation by such
officer prior to making such representation.

     "LIABILITY" means any liability whether known or unknown, whether asserted
or unasserted, whether absolute or contingent, whether accrued or unaccrued,
whether liquidated or unliquidated, and whether due or to become due, including
any liability for Taxes.

     "MINERALS" means an interest in oil and gas leases, permits, contracts,
licenses, other agreements and interests derived therefrom including without
limitation working, overriding royalty, net profits interests or other interest
or right in and to oil, gas and other minerals including those derived from
pooling or unitization of property, fee minerals, royalty or any other interests
in oil, gas and other minerals whether similar or dissimilar.

     "OTHER ASSETS" means those assets owned by FOC (other than the Acquired
Floyd Program Assets and Royalty Properties) including: (a) tangible personal
property and fixtures used or obtained in connection with such assets and
easements and rights of way connected with the production, treatment, sale or
disposal of hydrocarbons or water produced therefrom including but not limited
to wells, tanks, lease equipment, salt water dispersal systems, water flood
facilities, gathering systems, compressor facilities, electric service systems
and other equipment; (b) the rights and obligations existing under the contracts
and agreements that benefit or burden the Acquired Floyd Program Assets
including but not limited to operating agreements, tax partnership agreements,
unitization agreements, pooling agreements, declarations of pooling or
unification, farmout agreements, assignments, gas sale contracts and gas
processing agreements; (c) the oil, gas, casinghead gas, condensate, distillate
and other liquid hydrocarbons produced from the Acquired Floyd Program Assets,
products manufactured and refined therefrom and the accounts and proceeds from
the sale thereof and claims for the payment thereby to the extent accrued after
the Closing; and (d) Intellectual Property, goodwill associated therewith,
licenses and sublicenses granted and obtained with respect thereto, and rights
thereunder, remedies against infringements thereof, and rights to protection of
interests therein under the laws of all jurisdictions;  (e) agreements,
contracts, office leases in Texas, indentures, mortgages, instruments, Security
Interests, guaranties, other similar arrangements, oil and gas purchase

<PAGE>

agreements and rights thereunder, (f) accounts, notes, and other receivables
relating to the Acquired Floyd Program Assets, (g) claims, including claims for
nonpayment of royalties, deposits, prepayments, refunds, causes of action,
choses in action, rights of recovery, rights of set off, and rights of
recoupment (including any such item relating to the payment of Taxes),
(h) franchises, approvals, permits, licenses, orders, registrations,
certificates, variances, and similar rights obtained from governments and
governmental agencies, (i) the stock of Floyd Operating Company (j) limited
partnership interest in Llaves Gavilan, Ltd., and (k) books, records, ledgers,
files, documents, correspondence, lists, plats, architectural plans, drawings,
and specifications, studies, reports, and other printed or written materials;
PROVIDED, HOWEVER, that the Other Assets shall not include (i) the Floyd Oil
Company name, the corporate charter, qualifications to conduct business as a
foreign corporation, arrangements with registered agents relating to foreign
qualifications, taxpayer and other identification numbers, seals, minute books,
stock transfer books, blank stock certificates, and other documents relating to
the organization, maintenance, and existence of FOC as a corporation; (ii) the
assets listed on Exhibit "A" hereto; and (iii) any of the rights of FOC under
this Agreement (or under any side agreement between FOC on the one hand and
Middle Bay on the other hand entered into on or after the date of this
Agreement).

     "SECURITY INTEREST" means any mortgage, pledge, lien, encumbrance, charge,
or other security interest, OTHER THAN (a) mechanic's, materialmen's, and
similar liens, (b) liens for Taxes not yet due and payable or for Taxes that the
taxpayer is contesting in good faith through appropriate proceedings, (c)
purchase money liens and liens securing rental payments under capital lease
arrangements, and (d) other liens arising in the ordinary course of business and
not incurred in connection with the borrowing of money.

     "TAX" means any federal, state, local, or foreign income, gross receipts,
license, payroll, employment, excise, severance, stamp, occupation, premium,
windfall profits, environmental (including taxes under Code Section 59A),
customs duties, capital stock, franchise, profits, withholding, social security
(or similar), unemployment, disability, real property, personal property, sales,
use, transfer, registration, value added, alternative or add-on minimum,
estimated, or other tax of any kind whatsoever, including any interest, penalty,
or addition thereto, whether disputed or not.

                                      ARTICLE I
                            EXCHANGE & OTHER CONSIDERATION

     1.1  PRELIMINARY TRANSACTIONS.  After acquisition of the interests held by
Investors, Middle Bay and FOC agree to liquidate the partnerships shown in
Exhibit "B" so that Middle Bay will obtain title to all of the Royalty Interests
and as of the Closing Date Middle Bay will own the Royalty Interests outright as
real estate Minerals.

<PAGE>

      1.2 EXCHANGE.  At the Closing, FOC will exchange the Minerals it owns in
the Floyd Programs (described in the conveyance attached as Exhibit "C"), and
any other interests it may own in the Floyd Programs (except for its interest in
the Royalty Properties), with Middle Bay in exchange for the Royalty Interests
(described in the conveyance attached as Exhibit "D").  It is the intent of the
Parties hereto that, such exchange will be structured so the exchange of the
Acquired Floyd Program Assets for the Royalty Interests will qualify for
nonrecognition treatment under the provisions of Section  1031 of the Code and
the parties hereto will reasonably cooperate in executing such documents and
consistent with the provisions of this Agreement take such actions as are
necessary or appropriate to qualify such exchange under Section 1031 of the
Code.

     1.3  CONSIDERATION FOR OTHER ASSETS AND ADDITIONAL CONSIDERATION.

     (a)  At the Closing Middle Bay will assume the Assumed Liabilities and pay
FOC $85,000 for the  Other Assets. (b) Middle Bay shall also pay, as Additional
Consideration for the Acquired Floyd Program Assets an amount equal to the
income or revenue from the Royalty Properties from the Effective Date through
the Closing, less the amounts previously distributed to FOC from the income or
revenues earned from the interests owned by FOC in the Floyd Programs from the
Effective Date through the Closing less the amount paid for the Other Assets.
Such amount shall be computed and paid as of the Closing Date and adjusted as
provided in Paragraph VI(b).  A draft of the Closing Statement which has been
estimated as of the date of this Agreement is attached as Exhibit "E".

     (c)  Middle Bay will pay FOC $90,000 at Closing to compensate FOC for
expenditures it will incur in connection with the Closing in excess of those
assumed by Middle Bay hereunder.

                                     ARTICLE II
                                      CLOSING

     2.1  CLOSING.  The Closing of the exchange contemplated herein shall be
held in the offices of the Escrow Agent, Porter & Hedges, L.L.P., 700 Louisiana,
Suite 3500, Houston, Texas 77002-2764 on or before November 30, 1999 ("Closing
Date") or at such other time and at such other location as the parties hereto
shall agree in writing.

     2.2  DELIVERIES AT CLOSING.  At the Closing, (i) FOC will deliver to Middle
Bay the various certificates, instruments, and documents referred to in
Paragraph VI(a) below; (ii) Middle Bay will deliver to FOC the various
certificates, instruments, and documents referred to in Paragraph VI (b) below;
(iii) Middle Bay and FOC will execute, acknowledge (if appropriate), and deliver
to the other:  assignments (including real property and lease transfer
documents, division orders, letters in lieu and any other instruments reasonably
requested by the other).

<PAGE>

     2.3  DELIVERIES FOLLOWING CLOSING.  Middle Bay agrees to promptly remit and
deliver to FOC any payments Middle Bay receives which are derived from the
Royalty Properties whether such payment is derived from production which
occurred before or after the Effective Date.  FOC agrees to promptly remit and
deliver to Middle Bay any payments FOC receives which are derived from the
Minerals (other than Royalty Properties) whether such payment is derived from
production which occurred before or after the Effective Date.

                                    ARTICLE III
                    REPRESENTATIONS AND WARRANTIES OF MIDDLE BAY

     3.1  REPRESENTATIONS AND WARRANTIES OF MIDDLE BAY.  Middle Bay represents
and warrants to FOC that the statements contained in this Article III are
correct and complete as of the date of this Agreement and will be correct and
complete as of the Closing Date (as though made then and as though the Closing
Date were substituted for the date of this Agreement throughout this Article
III), except as set forth in Middle Bay's disclosure schedule accompanying this
Agreement (which may be amended up to the date of Closing) and initialed by the
Parties.

     (a) ORGANIZATION OF MIDDLE BAY.  Middle Bay is a corporation duly
organized, validly existing, and in good standing under the laws of the
jurisdiction of its incorporation and is qualified to do business in each state
where the operation of its business or the ownership of its assets requires such
qualification.

     (b) AUTHORIZATION OF TRANSACTION.  Middle Bay has full power and authority
(including full corporate power and authority) to execute and deliver this
Agreement and to perform its obligations hereunder. Without limiting the
generality of the foregoing, the board of directors of Middle Bay has duly
authorized the execution, delivery, and performance of this Agreement by Middle
Bay. This Agreement constitutes the valid and legally binding obligation of
Middle Bay, enforceable in accordance with its terms and conditions.

     (c) NONCONTRAVENTION.  Neither the execution and the delivery of this
Agreement, nor the consummation of the transactions contemplated hereby
(including the assignments and assumptions referred to in Article II above),
will (i) violate any constitution, statute, regulation, rule, injunction,
judgment, order, decree, ruling, charge, or other restriction of any government,
governmental agency, or court to which Middle Bay or any of its Affiliates is
subject or any provision of the charter or bylaws of Middle Bay or its
Affiliates or (ii) conflict with, result in a breach of, constitute a default
under, result in the acceleration of, create in any party the right to
accelerate, terminate, modify, or cancel, or require any notice under any
agreement, contract, lease, license, instrument, or other arrangement to which
Middle Bay or its Affiliates is a party or by which it is bound or to which any
of its assets is subject (or result in the imposition of any Security Interest
upon any of its assets). Neither Middle Bay nor any of its Affiliates needs to
give any notice to, make any filing with, or obtain any

<PAGE>

authorization, consent, or approval of any government or governmental agency
in order for the Parties to consummate the transactions contemplated by this
Agreement (including the assignments and assumptions referred to in Article
II above).

     (d) BROKERS' FEES.  Middle Bay has no Liability or obligation to pay any
fees or commissions to any broker, finder, or agent with respect to the
transactions contemplated by this Agreement for which FOC could become liable or
obligated. Any obligation Middle Bay has to pay any amounts to Premier Capital,
Limited shall be assumed by and paid by Middle Bay.

     (e) TITLE TO ASSETS.  On the Closing Date Middle Bay will own Good Title to
the Royalty Interests, free and clear of all Security Interests.  Middle Bay has
the power to convey Good Title to the Royalty Interests to FOC, free and clear
of any Security Interest, encumbrance  or restriction on transfer.

     (f) REAL PROPERTY.   With respect to the Royalty Interests, to the best
Knowledge of Middle Bay:

               (A) Middle Bay has acquired and has Good Title to the Royalty
          Interests, free and clear of any Security Interest, easement,
          covenant, production sales commitments (other than has been disclosed
          to FOC) or other restriction, except for Taxes or charges not yet
          delinquent and recorded easements, covenants, and other restrictions
          which do not impair the current use of the property;

               (B) there are no pending or threatened condemnation proceedings,
          lawsuits, or administrative actions relating to the Royalty Interests
          or other matters affecting the current use, or value thereof;

               (C) the legal description for the Royalty Interests contained in
          Exhibit "C" and the deed conveying such Royalty Interests to FOC
          describes such parcel fully and adequately; and

               (D) all operations on the Royalty Interests have received all
          approvals of governmental authorities (including licenses and permits)
          required in connection with the ownership or operation thereof and
          have been operated and maintained in accordance with applicable laws,
          rules, and regulations.

     (g) ENVIRONMENT, HEALTH, AND SAFETY.  With respect to the Royalty Interests
being conveyed hereunder, to the best Knowledge of Middle Bay, Middle Bay and
its Affiliates have complied with all Environmental, Health, and Safety Laws,
and no action, suit, proceeding, hearing, investigation, charge, complaint,
claim, demand, or notice has been filed or commenced against any of them
alleging any failure so to comply.

<PAGE>

                                     ARTICLE IV
                       REPRESENTATIONS AND WARRANTIES OF FOC

     4.1  REPRESENTATIONS AND WARRANTIES OF FOC.  FOC represents and warrants to
Middle Bay that the statements contained in this Article IV are correct and
complete as of the date of this Agreement and will be correct and complete as of
the Closing Date (as though made then and as though the Closing Date were
substituted for the date of this Agreement throughout this Article IV) except as
set forth in FOC's disclosure schedule accompanying this Agreement (which may be
amended up to the date of Closing) and initialed by the Parties.

      (a) ORGANIZATION OF FOC.  FOC is a corporation duly organized, validly
existing, and in good standing under the laws of the State of Texas and is
qualified to do business in each state where the operation of its business or
the ownership of its assets requires such qualification.

     (b) AUTHORIZATION OF TRANSACTION.  FOC has full power and authority
(including full corporate power and authority) to execute and deliver this
Agreement and to perform its obligations hereunder. The board of directors of
FOC has duly authorized the execution, delivery and performance of this
Agreement by FOC.  This Agreement constitutes the valid and legally binding
obligation of FOC, enforceable in accordance with its terms and conditions.

     (c) NONCONTRAVENTION. Neither the execution and the delivery of this
Agreement, nor the consummation of the transactions contemplated hereby
(including the assignments and assumptions referred to in Article II above),
will (i) violate any constitution, statute, regulation, rule, injunction,
judgment, order, decree, ruling, charge, or other restriction of any government,
governmental agency, or court to which FOC is subject or any provision of its
charter or bylaws or (ii) conflict with, result in a breach of, constitute a
default under, result in the acceleration of, create in any party the right to
accelerate, terminate, modify, or cancel, or require any notice under any
agreement, contract, lease, license, instrument, or other arrangement to which
FOC is a party or by which it is bound or to which any of its assets is subject.
FOC does not need to give any notice to, make any filing with, or obtain any
authorization, consent, or approval of any government or governmental agency in
order for the Parties to consummate the transactions contemplated by this
Agreement (including the assignments and assumptions referred to in Article II
above).

     (d) BROKERS' FEES.  FOC has no Liability or obligation to pay any fees or
commissions to any broker, finder, or agent with respect to the transactions
contemplated by this Agreement for which Middle Bay could become liable or
obligated.

<PAGE>

     (e) TITLE TO ASSETS.  FOC acquired Good Title to the Minerals being
conveyed to Middle Bay hereunder which are described in Exhibit "C" attached
hereto.

     (f) REAL PROPERTY.  With respect to such Minerals, to the best Knowledge of
FOC:

               (A) On the Closing Date FOC will own Good Title to such Minerals
          free and clear of any Security Interest, easement, covenant,
          production sales commitment or other restriction, except for Taxes or
          charges not yet delinquent and recorded easements, covenants, and
          other restrictions which do not impair the current use of the
          property;

               (B) there are no pending or threatened condemnation proceedings,
          lawsuits, or administrative actions relating to such Minerals or other
          matters materially affecting the current use, or value thereof;

               (C) the legal description for such Minerals contained in Exhibit
          "D" and the Conveyance transferring such Minerals to Middle Bay
          describes such Minerals fully and adequately; and

               (D) all material operations on such Minerals have received all
          approvals of governmental authorities (including licenses and permits)
          required in connection with the ownership or operation thereof and
          have been operated and maintained in accordance with applicable laws,
          rules, and regulations.

     (g) ENVIRONMENTAL HEALTH AND SAFETY.  To the best Knowledge of FOC and its
Affiliates with respect to the Minerals being conveyed by FOC hereunder, FOC and
its Affiliates have complied with all Environmental, Health, and Safety Laws,
and no action, suit, proceeding, hearing, investigation, charge, complaint,
claim, demand, or notice has been filed or commenced against any of them
alleging any failure so to comply. Without limiting the generality of the
preceding sentence, each of FOC and its Affiliates has obtained and been in
compliance with all of the terms and conditions of all permits, licenses, and
other authorizations which are required under, and has complied with all other
limitations, restrictions, conditions, standards, prohibitions, requirements,
obligations, schedules, and timetables which are contained in, all
Environmental, Health, and Safety Laws.

     (h) DISCLAIMER OF IMPLIED WARRANTIES OF FITNESS OF OTHER ASSETS.  FOC MAKES
NO WARRANTY AS TO THE FITNESS FOR A PARTICULAR PURPOSE OF ANY OF THE PERSONAL
PROPERTY OR FIXTURES BEING CONVEYED HEREUNDER.  SUCH PROPERTY IS BEING CONVEYED
"AS IS" AND "WHERE IS" WITH NO EXPRESS OR IMPLIED WARRANTIES FOR FITNESS OR
MERCHANTABILITY.

<PAGE>

     (i) DISCLAIMER OF WARRANTIES AS TO RESERVES OR PRODUCTION RATES.  FOC makes
no representation or warranty as to the reserves contained in the Floyd Programs
or rates of production from such Acquired Floyd Program Assets.

                                      ARTICLE V
                                      COVENANTS

     5.1  PRE-CLOSING COVENANTS.  The Parties agree as follows with respect to
the period between the execution of this Agreement and the Closing and, if
applicable, following Closing:

     (a) GENERAL.  Each of the Parties will use its best efforts to take all
action and to do all things necessary in order to consummate and make effective
the transactions contemplated by this Agreement including satisfaction, but not
waiver, of the closing conditions set forth in Article VII below.

     (b) NOTICES, CONSENTS AND FILINGS.  Each of the Parties will give any
notices to, make any filings with, and use its reasonable best efforts to obtain
any authorizations, consents, and approvals of governments and governmental
agencies in connection with the matters referred to in Paragraph III(c) and
Paragraph IV(c) above.  Middle Bay will file any Notification and Report Forms
and related material that it may be required to file with the Federal Trade
Commission and the Antitrust Division of the United States Department of Justice
under the Hart-Scott-Rodino Act, will use its reasonable best efforts to obtain
an early termination of any applicable waiting period, and will make any further
filings pursuant thereto and any filings of conveyance documents that may be
necessary in connection therewith.  Middle Bay, at its own expense, will record
all conveyancing documents referenced herein and deliver copies of the recorded
conveyancing documents transferring the Royalty Interests.

     (c) OPERATION OF BUSINESS.  FOC will not (and will not cause or permit any
of its Affiliates to) engage in any practice, take any action, or enter into any
transaction outside the ordinary course of business.  FOC will not declare, set
aside or make any distributions to its shareholders of the Acquired Floyd
Program Assets or Other Assets.

     (d) PRESERVATION OF BUSINESS.  FOC will keep (and will cause each of its
Affiliates to keep) its business and properties substantially intact, including
its present operations, physical facilities, working conditions, and
relationships with lessors, licensors, suppliers, customers, and employees.

     (e) FULL ACCESS.  FOC will permit (and will cause each of its Affiliates to
permit) representatives of Middle Bay to have access during normal business
hours, and in a manner so as not to interfere with the normal business
operations of FOC and its Affiliates  to all premises, properties, personnel,
books, records (including Tax records), contracts, and documents of or
pertaining to FOC and its Affiliates.

<PAGE>

     (f) NOTICE OF DEVELOPMENTS.  Each Party will give prompt written notice to
the other Party of any material adverse development causing a breach of any of
its own representations and warranties in Article III and Article IV above.

     (g) EXCLUSIVITY.  FOC will not (and FOC will not cause or permit any of its
Affiliates to) (i) solicit, initiate, or encourage the submission of any
proposal or offer from any Person relating to the acquisition of the stock of
FOC, the Acquired Floyd Program Assets or the Other Assets (including any
acquisition structured as a merger, consolidation, or share exchange) or (ii)
participate in any discussions or negotiations regarding, furnish any
information with respect to, assist or participate in, or facilitate in any
other manner any effort or attempt by any Person to do or seek any of the
foregoing. FOC will notify Middle Bay if any Person makes any proposal, offer,
inquiry, or contact with respect to any of the foregoing.

     (h) EMPLOYMENT AND SEVERANCE AGREEMENTS.  Middle Bay shall have offered
employment in Houston to all current Houston based employees of FOC (other than
Alex Floyd) on terms relating to base salary no less favorable than their
current employment terms.  In the event any FOC employee (who has been employed
by FOC for at least five years as of the Closing Date) is terminated by Middle
Bay without cause during the first twelve months of employment by Middle Bay,
such employee shall be paid for the balance of the twelve month period.  Any FOC
employee (who had not been employed by FOC for at least five years as of the
Closing Date) who is terminated by Middle Bay without cause during the first six
months shall be paid for the balance of the six month period.

     (i) TRANSITION ITEMS.  Middle Bay shall provide assistance and employ such
consultants as necessary  to assist FOC with filing required  tax returns for
1999 (federal and state income and franchise tax returns) for the Floyd
Programs, FOC, Floyd Employees Trust and Alexander G. Floyd and to assist FOC
and its affiliates and Middle Bay in insuring that payments for Minerals
comprising the Acquired Floyd Program Assets and the Royalty Interests are made
to the proper owners following Closing.

                                      ARTICLE VI
                                CONDITIONS TO CLOSING

     (a) CONDITIONS TO OBLIGATION OF MIDDLE BAY.  The obligation of Middle Bay
to consummate the transactions to be performed by it in connection with the
Closing is subject to satisfaction of the following conditions:

          (i) the representations and warranties of FOC set forth in Article IV
     above shall be true and correct in all material respects at and as of the
     Closing Date;

          (ii) FOC shall have performed and complied with all of its covenants

<PAGE>

     hereunder in all material respects through the Closing;

          (iii) no action, suit, or proceeding shall be pending before any court
     or quasi-judicial or administrative agency of any federal, state, local, or
     foreign jurisdiction wherein an unfavorable injunction, judgment, order,
     decree, ruling, or charge would (A) prevent consummation of any of the
     transactions contemplated by this Agreement, (B) cause any of the
     transactions contemplated by this Agreement to be rescinded following
     consummation or (C) affect adversely the right of Middle Bay to own the
     Acquired Floyd Program Assets or Other Assets;

          (iv) FOC shall have delivered to Middle Bay a certificate to the
     effect that each of the conditions specified above in Paragraph
     VI(a)(i)-(iii) is satisfied in all respects;

          (v) all applicable waiting periods, if any, under the
     Hart-Scott-Rodino Act shall have expired or otherwise been terminated and
     FOC and Middle Bay shall have received all other authorizations, consents,
     and approvals of governments and governmental agencies referred to in
     Articles III and IV;

          (vi) Middle Bay shall have received from counsel to FOC, dated as of
     the Closing Date, an opinion in form and substance as to the existence and
     good standing of FOC and as to the enforceability of this Agreement on FOC;

          (vii) all actions to be taken by FOC in connection with consummation
     of the transactions contemplated hereby and all certificates, opinions,
     instruments, and other documents required to effect the transactions
     contemplated hereby will be reasonably satisfactory in form and substance
     to Middle Bay;

          (viii) Middle Bay shall have completed its due diligence, the results
     of which will be satisfactory to Middle Bay in its sole discretion; and

          (ix) Alex Floyd shall have executed a stock power to Middle Bay
     transferring all issued and outstanding shares of Floyd Operating Company
     to Middle Bay.

The Buyer may waive any condition specified in this Paragraph VI(a) if it
executes a writing so stating at or prior to the Closing.

     (b) CONDITIONS TO OBLIGATION OF FOC. The obligation of FOC to consummate
the transactions to be performed by it in connection with the Closing is subject
to satisfaction of the following conditions:

          (i) the representations and warranties of Middle Bay set forth in
     Article

<PAGE>

     III above shall be true and correct in all material respects at and
     as of the Closing Date;

          (ii) Middle Bay shall have performed and complied with all of its
     covenants hereunder in all material respects through the Closing;

          (iii) Middle Bay shall have acquired 100% of the beneficial interests
     in the Floyd Programs from the Investors (other than FOC) and shall have
     obtained 100% of the Royalty Interests.  Middle Bay shall have completed
     the liquidation of any entity holding the Royalty Interests and shall own
     Good Title in such Royalty Interest;

          (iv) no action, suit, or proceeding shall be pending or threatened
     before any court or quasi-judicial or administrative agency of any federal,
     state, local, or foreign jurisdiction or before any arbitrator wherein an
     unfavorable injunction, judgment, order, decree, ruling, or charge would
     (A) prevent consummation of any of the transactions contemplated by this
     Agreement, (B) cause any of the transactions contemplated by this Agreement
     to be rescinded following consummation or (C) affect adversely the right of
     FOC to own the Royalty Properties;

          (v) Middle Bay shall have delivered a release and indemnity agreement,
     in form and substance satisfactory to FOC and its counsel, holding FOC, its
     officers, directors and shareholders harmless from any liability or cause
     of action relating to the Assumed Liabilities or which occurred in
     connection with, or because of the ownership of the Acquired Floyd Program
     Assets, the Other Assets or the Floyd Programs prior to the Closing
     ("Released Claims").  The agreement will indemnify the released parties for
     any expense, charge or cost incurred by any of them for Released Claims;

          (vi) Middle Bay shall have provided FOC with evidence of its
     compliance with the provisions of Paragraph V(h);

          (vii) Middle Bay and FOC will have approved a method to provide that
     the amounts due to Middle Bay from the receipts of production from the
     Acquired Floyd Program Assets which have occurred since the September 1999
     distribution to the Investors plus any suspended revenues or unexpended
     amounts withheld by FOC from the September 1999 distribution, except for
     agreed upon amounts for future contingencies, are computed and paid to
     Middle Bay at Closing in accordance with the statement prepared as of the
     date of Closing attached as Exhibit "E";

          (viii) Middle Bay and FOC shall have approved a method to provide that
     any adjustments to the amounts due FOC as Additional Consideration are paid
     to FOC within sixty (60) days of Closing;

<PAGE>

          (ix) Middle Bay shall have delivered to FOC a certificate to the
     effect that each of the conditions specified above in paragraph
     VI(b)(i)-(viii) is satisfied in all respects;

          (x) FOC shall have received from counsel to Middle Bay an opinion in
     form and substance as to the existence, good standing and enforceability of
     this Agreement upon Middle Bay dated as of the Closing Date;

          (xi) FOC shall have received from its counsel a tax opinion as to the
     applicability of Section 1031 of the Internal Revenue Code to this
     transaction in form and substance satisfactory to FOC; and

          (xii) all actions to be taken by Middle Bay in connection with
     consummation of the transactions contemplated hereby and all certificates,
     opinions, instruments, conveyances, and other documents required to effect
     the transactions contemplated hereby will be reasonably satisfactory in
     form and substance to FOC.

FOC may waive any condition specified in this Paragraph VI(b) if it executes a
writing so stating at or prior to the Closing.

                                   VII TERMINATION

     (a) TERMINATION OF AGREEMENT.  The Parties may terminate this Agreement as
provided below:

          (i) Middle Bay and FOC may terminate this Agreement by mutual written
     consent at any time prior to the Closing;

          (ii) Middle Bay may terminate this Agreement by giving written notice
     to FOC on or before Closing, if Middle Bay is not reasonably satisfied with
     the results of its continuing business, legal, and accounting due diligence
     regarding FOC, the Floyd Programs or its Affiliates;

          (iii) Middle Bay may terminate this Agreement by giving written notice
     to FOC at any time prior to the Closing (A) in the event FOC has breached
     any material representation, warranty, or covenant contained in this
     Agreement in any material respect, Middle Bay has notified FOC of the
     breach, and the breach has continued without cure for a period of 15 days
     after the notice of breach or (B) if the Closing shall not have occurred on
     or before November 30, 1999, by reason of the failure of any condition
     precedent under Paragraph VI(a) hereof (unless the failure results
     primarily from Middle Bay  itself breaching any representation, warranty,
     or covenant contained in this Agreement); and

          (iv) FOC may terminate this Agreement by giving written notice to

<PAGE>

     Middle Bay at any time prior to the Closing (A) in the event Middle Bay has
     breached any material representation, warranty, or covenant contained in
     this Agreement in any material respect, FOC has notified Middle Bay of the
     breach, and the breach has continued without cure for a period of 15 days
     after the notice of breach or (B) if the Closing shall not have occurred on
     or before November 30, 1999, by reason of the failure of any condition
     precedent under Paragraph VI(b) hereof (unless the failure results
     primarily from FOC itself breaching any representation, warranty, or
     covenant contained in this Agreement).

     (b) EFFECT OF TERMINATION.  If any Party terminates this Agreement pursuant
to Paragraph VII(a) above, all rights and obligations of the Parties hereunder
shall terminate without any Liability of any Party to any other Party (except
for any Liability of any Party then in breach) provided, however, upon
termination of this Agreement Middle Bay shall pay the expenses stated in
Paragraph VIII (l).

                                     ARTICLE VIII
                                    MISCELLANEOUS

     (a) TERMINATION OF REPRESENTATIONS AND WARRANTIES.  The representations and
warranties of the Parties contained in this Agreement shall not survive the
Closing hereunder.

     (b) PRESS RELEASES AND PUBLIC ANNOUNCEMENTS.  No Party shall issue any
press release or make any public announcement relating to the subject matter of
this Agreement prior to the Closing without the prior written approval of the
other Party; PROVIDED, HOWEVER, that any Party may make any public disclosure it
believes in good faith is required by applicable law or any listing or trading
agreement concerning its publicly-traded securities (in which case the
disclosing Party will use its reasonable best efforts to advise the other Party
prior to making the disclosure).

     (c) NO THIRD PARTY BENEFICIARIES.  This Agreement shall not confer any
rights or remedies upon any person other than the Parties and their respective
successors and permitted assigns.

     (d) ENTIRE AGREEMENT.  This Agreement (including the documents referred to
herein) constitutes the entire agreement between the Parties and supersedes any
prior understandings, agreements, or representations by or between the Parties,
written or oral, to the extent they related in any way to the subject matter
hereof.

     (e) SUCCESSION AND ASSIGNMENT.  This Agreement shall be binding upon and
inure to the benefit of the Parties named herein and their respective successors
and permitted assigns.  No Party may assign either this Agreement or any of its
rights, interests, or obligations hereunder without the prior written approval
of the other Party; PROVIDED, HOWEVER, that Middle Bay may (i) assign any or all
of its rights and interests

<PAGE>

hereunder to one or more of its Affiliates and (ii) designate one or more of
its Affiliates to perform its obligations hereunder (in any or all of which
cases Middle Bay nonetheless shall remain responsible for the performance of
all of its obligations hereunder).

     (f) COUNTERPARTS.  This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original but all of which
together will constitute one and the same instrument.

     (g) HEADINGS.  The section headings contained in this Agreement are
inserted for convenience only and shall not affect in any way the meaning or
interpretation of this Agreement.

     (h) NOTICES.  All notices, requests, demands, claims, and other
communications hereunder will be in writing.  Any notice, request, demand,
claim, or other communication hereunder shall be deemed duly given two business
days after it is sent by registered or certified mail, return receipt requested,
postage prepaid, and addressed to the intended recipient as set forth below:

     IF TO FOC:                    COPY TO:

     Floyd Oil Company             Edward E. Hartline
     Attn:  Alexander G. Floyd     Brown McCarroll & Oaks Hartline
     St. Mary's Place              1300 Wortham Tower
     879-B Washington Street       2727 Allen Parkway
     Raleigh, North Carolina 27605 Houston, Texas 77019-2100


     IF TO MIDDLE BAY:             COPY TO:

     Middle Bay Oil Company, Inc.  David S. Elkouri
     Attn:  Floyd C. Wilson        Hinkel Elkouri Law Firm, L.L.C.
     5910 North Central Expressway 2000 Epic Center
     Suite 1150                    301 North Main Street
     Dallas, Texas 75206           Wichita, Kansas 67202-4820

Any Party may send any notice, request, demand, claim, or other communication
hereunder to the intended recipient at the address set forth above using any
other means (including personal delivery, expedited courier, messenger service,
telecopy, telex, ordinary mail, or electronic mail), but no such notice,
request, demand, claim, or other communication shall be deemed to have been duly
given unless and until it actually is received by the intended recipient. Any
Party may change the address to which notices, requests, demands, claims, and
other communications hereunder are to be delivered by giving the other Party
notice in the manner herein set forth.

<PAGE>

     (i) GOVERNING LAW.  This Agreement shall be governed by and construed in
accordance with the domestic laws of the State of Texas without giving effect to
any choice or conflict of law provision or rule that would cause the application
of the laws of any jurisdiction other than the State of Texas.

     (j) AMENDMENTS AND WAIVERS.  No amendment of any provision of this
Agreement shall be valid unless the same shall be in writing and signed by
Middle Bay and FOC.  No waiver by any Party of any default, misrepresentation,
or breach of warranty or covenant hereunder, whether intentional or not, shall
be deemed to extend to any prior or subsequent default, misrepresentation, or
breach of warranty or covenant hereunder or affect in any way any rights arising
by virtue of any prior or subsequent such occurrence.

     (k) SEVERABILITY.  Any term or provision of this Agreement that is invalid
or unenforceable in any situation in any jurisdiction shall not affect the
validity or enforceability of the remaining terms and provisions hereof or the
validity or enforceability of the offending term or provision in any other
situation or in any other jurisdiction.

     (l) EXPENSES.  All of the reasonable expenses of FOC related to this
Agreement and the transactions contemplated hereby will be paid by Middle Bay at
Closing or in the event the Closing does not occur such expenses shall be paid
by December 1, 1999.  In addition, if Closing does occur, Middle Bay will assist
FOC in preparing the 1999 tax returns of FOC, Floyd Employees Trust, Floyd IV
Corporation, Floyd Equity IV Corporation, Floyd Canyon, Inc. and Alexander G.
Floyd, the final tax returns for the partnerships in the Floyd Programs and
final reports to the investors in the Floyd Programs and either pay for or
reimburse FOC for the reasonable costs incurred in preparing such tax returns
and reports.  Middle Bay shall be responsible for its own costs and expenses.

     (m) CONSTRUCTION.  The Parties have participated jointly in the negotiation
and drafting of this Agreement. In the event an ambiguity or question of intent
or interpretation arises, this Agreement shall be construed as if drafted
jointly by the Parties and no presumption or burden of proof shall arise
favoring or disfavoring any Party by virtue of the authorship of any of the
provisions of this Agreement.  Any reference to any federal, state, local, or
foreign statute or law shall be deemed also to refer to all rules and
regulations promulgated thereunder, unless the context requires otherwise. The
word "including" shall mean including without limitation.  The Parties intend
that each representation, warranty, and covenant contained herein shall have
independent significance. If any Party has breached any representation,
warranty, or covenant contained herein in any respect, the fact that there
exists another representation, warranty, or covenant relating to the same
subject matter (regardless of the relative levels of specificity) which the
Party has not breached shall not detract from or mitigate the fact that the
Party is in breach of the first representation, warranty, or covenant.

<PAGE>

     (n) INCORPORATION OF EXHIBITS AND SCHEDULES.  The Exhibits and Schedules
identified in this Agreement are incorporated herein by reference and made a
part hereof.

     (o) SUBMISSION TO JURISDICTION.  Each of the Parties submits to the
jurisdiction of any state or federal court sitting in Houston, Texas, in any
action or proceeding arising out of or relating to this Agreement and agrees
that all claims in respect of the action or proceeding may be heard and
determined in any such court. Each party also agrees not to bring any action or
proceeding arising out of or relating to this Agreement in any other court.

     (p) USAGE OF NAME.  Middle Bay agrees not to use the names "Floyd Oil
Company" or "Floyd" in its business activities and to expeditiously remove the
names "Floyd Oil Company" or "Floyd" from any Acquired Floyd Program Assets or
Other Assets.


                THE BALANCE OF THIS PAGE WAS INTENTIONALLY LEFT BLANK.

<PAGE>

     EXECUTED EFFECTIVE, the date herein first above written.


                         Middle Bay Oil Company, Inc.



                         By  /s/ Floyd C. Wilson
                             Floyd C. Wilson, President



                         Floyd Oil Company



                         By /s/ Alexander G. Floyd
                            Alexander G. Floyd, President

<PAGE>

                                      EXHIBIT A

                                ASSETS RETAINED BY FOC


     All real estate owned by FOC in North Carolina.

     All personal property located in the FOC office at St. Mary's Place, 879-B
Washington Street, Raleigh, North Carolina.

     All land and other records pertaining to the Royalty Properties.*

     All financial and income tax records (federal and state) pertaining to
FOC.*

     All Interest in Royalty Properties owned by FOC.

     All cash on hand of FOC not conveyed in accordance with the terms of this
Agreement.



*Any records which are the property of FOC which remain in Middle Bay offices
following the Closing will be maintained by Middle Bay for four years following
Closing.  Prior to destroying any of FOC's records, Middle Bay will give FOC
notice of such intention and at least sixty (60) days to claim such records.

<PAGE>

                                      EXHIBIT B

                            PARTNERSHIPS TO BE LIQUIDATED



                               Cheyenne Partners, Ltd.

                              Cheyenne Partners II, Ltd.

                          Cheyenne Partners III - TNE, Ltd.

                           Cheyenne Partners III - MM, Ltd.

                              Cheyenne Partners IV, Ltd.

                              Cheyenne Partners V, Ltd.

                         Floyd Equity Partners Program, Ltd.

                        Floyd Equity Partners Program II, Ltd.

                       Floyd Equity Partners Program III, Ltd.

                         Floyd Equity Partners III-TNE, Ltd.

                        Floyd Equity Partners Program IV, Ltd.

                            Floyd Equity Partners V, Ltd.

                               CCHub Partnership, Ltd.

                             Floyd Canada Ojitos Partners

<PAGE>

                                      EXHIBIT C

CONVEYANCE AND DESCRIPTION OF MINERALS OWNED BY FOC BEING CONVEYED TO MIDDLE BAY

<PAGE>

                                      EXHIBIT D

     CONVEYANCE AND DESCRIPTION OF ROYALTY INTERESTS BEING CONVEYED TO FOC BY
MIDDLE BAY

<PAGE>

                                    EXHIBIT "E"

                  FLOYD OIL COMPANY / MIDDLE BAY OIL COMPANY, INC.
                             DRAFT OF CLOSING STATEMENT
                          EFFECTIVE DATE: JANUARY 1, 1999
                          CLOSING DATE: NOVEMBER 23, 1999


AMOUNTS DUE TO FLOYD OIL COMPANY

<TABLE>
<S>                                                                     <C>             <C>
     Consideration For Other Assets (Paragraph 1.3(a))                                  $     85,000

     Additional Consideration For Acquired Floyd Program Assets (Paragraph 1.3(b))

        1999 Net Operating Income From Royalty Properties Through
            August 1999 Cash Receipts                                   1,179,585
        FOC's Share of NOI from Interests Under Cheyenne Programs        (424,829)

            Net Operating Income Due To Floyd Oil Company                 754,756

        Development Costs Incurred By FOC Through August 1999              79,664

        G & A costs Incurred By FOC Through August 1999                    26,020

        Less Amount Per Exchange Agreement                                (85,000)
                                                                        ---------
                                                                                             775,440

     Consideration For Expenditures To Be Incurred (Paragraph 1.3(c))                         90,000
                                                                                         -----------
                                                                                             950,440
                                                                                         -----------
AMOUNTS DUE FROM FLOYD OIL COMPANY

     Net Cash Flow From Non-Royalty Properties For Sept & Oct 1999

        New Operating Income ($2,206,893 and $2,641,288)                4,848,181
        Development Costs ($589,878 and $564,647)                      (1,154,525)
        Tax Adjustments                                                  (218,126)
                                                                        ---------
                                                                                           3,475,530

     G & A Expense Estimates Withheld From Sept 1999 Distribution                            555,816
                                                                                         -----------
                                                                                           4,031,346
                                                                                         -----------

NET DUE TO (FROM) FLOYD OIL COMPANY AT CLOSING                                           $(3,080,905)
                                                                                         -----------
                                                                                         -----------

</TABLE>

<PAGE>
                          DISCLOSURE SCHEDULE BY MIDDLE BAY

NONE

<PAGE>

                                DISCLOSURE SCHEDULE
                                 FLOYD OIL COMPANY

LITIGATION AND POTENTIAL LEGAL CLAIMS

EAST ROANOKE FIELD, JEFFERSON DAVIS PARISH, LOUISIANA

Floyd Oil Company, et al vs. James M. Wessel, et al, Docket No. C-731-95,
District Court of Jefferson Davis Parish,Louisiana.  Floyd, et al is the
Plaintiff in a quiet title action to the drillsite tract for the Brieske #1 well
(HBY RA SUB).  We also filed damage claims against Wessel for breach of faith,
tortuous interference and bad faith dealings.  We have entered into an agreement
with Wessel to settle this litigation which would result in a $10,000 payment to
him.

RACELAND FIELD, LAFOURCHE PARISH, LOUISIANA

4C's Inc., et al vs. Floyd Oil Company, et al, Docket No. 84623, 17th Judicial
Court, Lafourche Parish, Louisiana.  The surface owner has claimed we do not
have ingress and egress to the Sabine #2 & 4 wells and Floyd, as well as the
prior owner Torch, and the pumpers have been trespassing on and damaging the
land.

SLEEPING HOLLOW FIELD, RED WILLOW COUNTY, NEBRASKA

We are seeking the removal of the Operator, Central Operating Inc., of the
Reagan and Lansing Units.  We have retained Mr. Brian Tooley of Welborn Sullivan
Meck & Tooley to represent us.

FULLERTON FIELD, ANDREWS COUNTY, TEXAS

Floyd, et al owns 100% working interest in the University 10 & 11 leases in
Sections 10 & 11, Block 13, University Lands Survey, Andrews County, Texas.
These leases are subject to a 10.9375% overriding royalty on "primary
production" which escalates to a 21.875% overriding royalty if "secondary
recovery" operations are initiated.  Gulf originally reserved said ORRI which
vested in Chevron and was sold to ICA Energy, Inc., effective June 1, 1999.  ICA
has claimed that secondary recovery operations have occurred on the offsetting
Exxon Clearfork Unit which have caused escalation of the ORRI burdening our
lease.  We deny this allegation but have been negotiating with ICA for them to
exchange their ORRI for a working interest so we can work towards jointly
developing this property.  We have verbally agreed to terms with ICA to settle
the ownership issue and jointly develop the property.  However, we have now
received a letter from Chevron also claiming escalation of the ORRI and
requesting an accounting be made of royalty owed Chevron as a result of
secondary operations by Exxon on the adjacent lease.  Chevron estimates that it
is owed approximately $284,238.41 plus interest.  Our deal with ICA is
contingent on them obtaining a waiver of this issue from Chevron.

The minerals are subject in some cases to rights of first refusal and to a
requirement to give notice of any transfer to a prior owner or lessor.



ENVIRONMENTAL ISSUES

<PAGE>

TOBORG FIELD, PECOS COUNTY, TEXAS

The property has significant volumes of oil and saltwater impacted surface soil
located around tank batteries, water injuection pumps, lease roads and flow line
rights-of-way; three unlined "emergency" pits in service on the Toborg, Tippett
"E" and Tippett "C" tank batteries, and many of the injection wells have annulus
open to the atmosphere.  This property was sold effective December 1, 1999.

RACELAND FIELD, LAFOURCHE PARISH, LOUISIANA

Reserve pits with elevated levels of barium remain open in the wetlands at the
three well locations.  Wells are registered with the state for the elevated
levels of NORM scale they produce.

SOUTHEAST VELMA SIMS / HUMPHREY UNITS, CARTER COUNTY, OKLAHOMA

The Velma Camp Deese Unit injection wells cause casing collapse problems with
the adjacent Southeast Velma Sims and Humphrey's producing wells.  The Velma
Camp Deese Unit operated by Phoenix Petro Corp. overlies our Sims and Humphrey
units.  This could cause an adverse impact on the ground water resources.

SLEEPY HOLLOW FIELD, RED WILLOW COUNTY, NEBRASKA

The two waterflood units have approximately 100 temporarily abandoned wellbores
which need to be plugged and abandoned.  In addition, 60 well sites require some
measure of surface restoration and two large unlined pits registered with the
state remain open for emergency overflows.

STUART CITY FIELD, LASALLE COUNTY, TEXAS

Reportedly, while drilling through the Olmos formation, hydrogen sulfide was
noted.  The condition could have occurred from causing leaks in the Edwards
producing wells in the area.

APACHE FEDERAL LEASE, RIO ARRIBA COUNTY, NEW MEXICO

Unlined produced water evaporated / percolation pits located adjacent to the
production units at each well location remain in service and are void of
protective bird netting.  Some pits are located within the Expended Vulnerable
Area which the BLM has informed us to close.

Reference is also hereby made to the environmental study by Hinds and Associates
a copy of which is attached hereto.




<PAGE>

Exhibit 10.1




                                      RESTATED
                                  CREDIT AGREEMENT

                                       AMONG

                           MIDDLE BAY OIL COMPANY, INC.,
                             ENEX RESOURCES CORPORATION
                      AND MIDDLE BAY PRODUCTION COMPANY, INC.
                                   AS BORROWERS,

                                        AND

                               BANK ONE, TEXAS, N.A.
                         AND THE INSTITUTIONS NAMED HEREIN
                                    AS LENDERS,

                               BANK ONE, TEXAS, N.A.,
                              AS ADMINISTRATIVE AGENT

                                        AND

                          UNION BANK OF CALIFORNIA, N.A.,
                                AS SYNDICATION AGENT

                                        AND

                           BANC ONE CAPITAL MARKETS, INC.
                                    AS ARRANGER

                                 NOVEMBER 23, 1999

                           $250,000,000 REVOLVING CREDIT


<PAGE>
                                 TABLE OF CONTENTS

<TABLE>
<CAPTION>

                                                                             Page No.
<S>                                                                          <C>
1.   Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

2.   Commitments of the Lender . . . . . . . . . . . . . . . . . . . . . . . . . . 13
     (a)  Terms of Commitment. . . . . . . . . . . . . . . . . . . . . . . . . . . 13
     (b)  Procedure for Borrowing. . . . . . . . . . . . . . . . . . . . . . . . . 13
     (c)  Letters of Credit. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
     (d)  Procedure for Obtaining Letters of Credit. . . . . . . . . . . . . . . . 15
     (e)  Voluntary Reduction of Commitment. . . . . . . . . . . . . . . . . . . . 15
     (f)  Mandatory Commitment Reductions. . . . . . . . . . . . . . . . . . . . . 16
     (g)  Several Obligations. . . . . . . . . . . . . . . . . . . . . . . . . . . 16
     (h)  Type and Number of Advances. . . . . . . . . . . . . . . . . . . . . . . 16
     (i)  Limited Liability of Enex and Production . . . . . . . . . . . . . . . . 16

3.   Notes Evidencing Loans. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
     (b)  Issuance of Additional Notes . . . . . . . . . . . . . . . . . . . . . . 17
     (c)  Interest Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
     (d)  Payment of Interest. . . . . . . . . . . . . . . . . . . . . . . . . . . 17
     (e)  Payment of Principal . . . . . . . . . . . . . . . . . . . . . . . . . . 17
     (f)  Payment to Lenders . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
     (g)  Sharing of Payments, Etc.. . . . . . . . . . . . . . . . . . . . . . . . 18
     (h)  Non-Receipt of Funds by the Agent. . . . . . . . . . . . . . . . . . . . 18

4.   Interest Rates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
     (a)  Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
     (b)  Interest Rate Determination. . . . . . . . . . . . . . . . . . . . . . . 20
     (c)  Conversion Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
     (d)  Recoupment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.   Special Provisions Relating to Loans. . . . . . . . . . . . . . . . . . . . . 20
     (a)  Unavailability of Funds or Inadequacy of Pricing . . . . . . . . . . . . 20
     (b)  Change in Laws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
     (c)  Increased Cost or Reduced Return . . . . . . . . . . . . . . . . . . . . 21
     (d)  Discretion of Lender as to Manner of Funding . . . . . . . . . . . . . . 23
     (e)  Breakage Fees. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.   Collateral Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

7.   Borrowing Base. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
     (a)  Initial Borrowing Base . . . . . . . . . . . . . . . . . . . . . . . . . 25
     (b)  Subsequent Determinations of Borrowing Base. . . . . . . . . . . . . . . 25


<PAGE>

8.   Fees. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
     (a)  Unused Commitment Fee. . . . . . . . . . . . . . . . . . . . . . . . . . 26
     (b)  The Letter of Credit Fee . . . . . . . . . . . . . . . . . . . . . . . . 27
     (c)  Agency Fees. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

9.   Prepayments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
     (a)  Voluntary Prepayments. . . . . . . . . . . . . . . . . . . . . . . . . . 27
     (b)  Mandatory Prepayment For Borrowing Base Deficiency . . . . . . . . . . . 27

10.  Representations and Warranties. . . . . . . . . . . . . . . . . . . . . . . . 28
     (a)  Creation and Existence.. . . . . . . . . . . . . . . . . . . . . . . . . 28
     (b)  Power and Authority. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
     (c)  Binding Obligations. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
     (d)  No Legal Bar or Resultant Lien . . . . . . . . . . . . . . . . . . . . . 28
     (e)  No Consent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
     (f)  Financial Condition. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
     (g)  Liabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
     (h)  Litigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
     (i)  Taxes; Governmental Charges. . . . . . . . . . . . . . . . . . . . . . . 29
     (j)  Titles, Etc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
     (k)  Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
     (l)  Casualties; Taking of Properties . . . . . . . . . . . . . . . . . . . . 30
     (m)  Use of Proceeds; Margin Stock. . . . . . . . . . . . . . . . . . . . . . 30
     (n)  Location of Business and Offices . . . . . . . . . . . . . . . . . . . . 30
     (o)  Compliance with the Law. . . . . . . . . . . . . . . . . . . . . . . . . 30
     (p)  No Material Misstatements. . . . . . . . . . . . . . . . . . . . . . . . 31
     (q)  Not A Utility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
     (r)  ERISA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
     (s)  Public Utility Holding Company Act . . . . . . . . . . . . . . . . . . . 31
     (t)  Subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
     (u)  Environmental Matters. . . . . . . . . . . . . . . . . . . . . . . . . . 31
     (v)  Liens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
     (w)  Year 2000 Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . 32

11.  Conditions of Lending . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

12.  Affirmative Covenants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
     (a)  Financial Statements and Reports . . . . . . . . . . . . . . . . . . . . 35
     (b)  Certificates of Compliance . . . . . . . . . . . . . . . . . . . . . . . 36
     (c)  Accountants' Certificate . . . . . . . . . . . . . . . . . . . . . . . . 36
     (d)  Taxes and Other Liens. . . . . . . . . . . . . . . . . . . . . . . . . . 36
     (e)  Compliance with Laws . . . . . . . . . . . . . . . . . . . . . . . . . . 37
     (f)  Further Assurances . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
     (g)  Performance of Obligations . . . . . . . . . . . . . . . . . . . . . . . 37
     (h)  Insurance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

<PAGE>

     (i)  Accounts and Records . . . . . . . . . . . . . . . . . . . . . . . . . . 38
     (j)  Right of Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . 38
     (k)  Notice of Certain Events . . . . . . . . . . . . . . . . . . . . . . . . 39
     (l)  ERISA Information and Compliance . . . . . . . . . . . . . . . . . . . . 39
     (m)  Environmental Reports and Notices. . . . . . . . . . . . . . . . . . . . 39
     (n)  Compliance and Maintenance . . . . . . . . . . . . . . . . . . . . . . . 39
     (o)  Operation of Properties. . . . . . . . . . . . . . . . . . . . . . . . . 40
     (p)  Compliance with Leases and Other Instruments . . . . . . . . . . . . . . 40
     (q)  Certain Additional Assurances Regarding
          Maintenance and Operations of Properties . . . . . . . . . . . . . . . . 41
     (r)  Sale of Certain Assets/Prepayment of Proceeds. . . . . . . . . . . . . . 41
     (s)  Title Matters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
     (t)  Curative Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
     (u)  Change of Principal Place of Business. . . . . . . . . . . . . . . . . . 42
     (v)  Cash Collateral Accounts . . . . . . . . . . . . . . . . . . . . . . . . 42
     (w)  Year 2000 Compatibility. . . . . . . . . . . . . . . . . . . . . . . . . 42

13.  Negative Covenants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
     (a)  Negative Pledge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
     (b)  Current Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
     (c)  Minimum Interest Coverage Ratio. . . . . . . . . . . . . . . . . . . . . 43
     (d)  Consolidations and Mergers . . . . . . . . . . . . . . . . . . . . . . . 44
     (e)  Debts, Guaranties and Other Obligations. . . . . . . . . . . . . . . . . 44
     (f)  Dividends. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
     (g)  Loans and Advances . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
     (h)  Sale or Discount of Receivables. . . . . . . . . . . . . . . . . . . . . 45
     (i)  Nature of Business . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
     (j)  Transactions with Affiliates . . . . . . . . . . . . . . . . . . . . . . 45
     (k)  Hedging Transactions . . . . . . . . . . . . . . . . . . . . . . . . . . 45
     (l)  Investments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
     (m)  Amendment to Articles of Incorporation or Bylaws . . . . . . . . . . . . 46
     (n)  Proceeds of Production . . . . . . . . . . . . . . . . . . . . . . . . . 46
     (o)  Issuance of  Preferred Stock . . . . . . . . . . . . . . . . . . . . . . 46
     (p)  Amendments to and Redemption of Preferred Stock or Other Equity. . . . . 46
     (q)  Payment or Pre-Payment of Other Indebtedness . . . . . . . . . . . . . . 46
     (r)  Subordinated Indebtedness. . . . . . . . . . . . . . . . . . . . . . . . 47

14.  Events of Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

15.  The Agent and the Lenders . . . . . . . . . . . . . . . . . . . . . . . . . . 49
     (a)  Appointment and Authorization. . . . . . . . . . . . . . . . . . . . . . 49
     (b)  Note Holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
     (c)  Consultation with Counsel. . . . . . . . . . . . . . . . . . . . . . . . 50
     (d)  Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
     (e)  Resignation or Removal of Agent. . . . . . . . . . . . . . . . . . . . . 51

<PAGE>

     (f)  Responsibility of Agent. . . . . . . . . . . . . . . . . . . . . . . . . 51
     (g)  Independent Investigation. . . . . . . . . . . . . . . . . . . . . . . . 53
     (h)  Indemnification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
     (i)  Benefit of Section 15. . . . . . . . . . . . . . . . . . . . . . . . . . 53
     (j)  Pro Rata Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
     (k)  Assumption as to Payments. . . . . . . . . . . . . . . . . . . . . . . . 54
     (l)  Other Financings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
     (m)  Interests of Lenders . . . . . . . . . . . . . . . . . . . . . . . . . . 54
     (n)  Investments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

16.  Exercise of Rights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

17.  Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

18.  Expenses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

19.  Indemnity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

20.  Governing Law . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

21.  Invalid Provisions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

22.  Maximum Interest Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

23.  Amendments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

24.  Multiple Counterparts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

25.  Conflict. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

26.  Survival. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

27.  Parties Bound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

28.  Assignments and Participations. . . . . . . . . . . . . . . . . . . . . . . . 58

29.  Choice of Forum: Consent to Service of Process and Jurisdiction . . . . . . . 60

30.  Waiver of Jury Trial. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

31.  Other Agreements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

32.  Financial Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

</TABLE>
<PAGE>

EXHIBITS

Exhibit "A"    -    Notice of Borrowing
Exhibit "B"    -    Note
Exhibit "C"    -    Certificate of Compliance
Exhibit "D"    -    Form of Assignment and Acceptance Agreement

SCHEDULES

Schedule 1     -    Liens
Schedule 2     -    Financial Condition
Schedule 3     -    Liabilities
Schedule 4     -    Litigation
Schedule 5     -    Subsidiaries
Schedule 6     -    Environmental Matters
Schedule 7     -    Title Matters
Schedule 8     -    Curative Matters

<PAGE>

                              RESTATED CREDIT AGREEMENT


     THIS RESTATED CREDIT AGREEMENT (hereinafter referred to as the "Agreement")
executed as of the 23rd day of November, 1999, by and between MIDDLE BAY OIL
COMPANY, INC., an Alabama corporation ("Middle Bay"), ENEX RESOURCES
CORPORATION, a Delaware corporation ("Enex") and MIDDLE BAY PRODUCTION COMPANY,
INC., a Kansas corporation ("Production") (Middle Bay, Enex and Production are
hereinafter collectively referred to as "Borrowers", and individually as a
"Borrower") and BANK ONE, TEXAS, N.A., a national banking association ("Bank
One"), and each of the financial institutions which is a party hereto (as
evidenced by the signature pages to this Agreement) or which may from time to
time become a party hereto pursuant to the provisions of Section 28 hereof or
any successor or assignee thereof (hereinafter collectively referred to as
"Lenders", and individually, "Lender") and Bank One, as Administrative Agent
(the "Agent") and Union Bank of California, N.A., as Syndication Agent.

                                 W I T N E S S E T H:

     WHEREAS, as of March 27, 1998, Middle Bay entered into a Credit Agreement
with Compass Bank, as Agent for itself and Bank of Oklahoma, N.A., pursuant to
which the Lenders made available to Middle Bay a credit facility of up to
$100,000,000 (the "Credit Agreement"); and'

     WHEREAS, the Lenders have acquired all of the interest of Compass Bank and
Bank of Oklahoma in the Credit Agreement and the liens securing the same; and

     WHEREAS, Borrowers have requested that the Lenders restate the Credit
Agreement to make available to them a loan facility in amounts of up to
$250,000,000; and

     WHEREAS, the Lenders have agreed to restate the Credit Agreement and to
make the requested facility available to Borrowers.

     NOW, THEREFORE, in consideration of the mutual covenants and agreements
herein contained, the parties hereby agree to restate the Credit Agreement as
follows:

     1.   DEFINITIONS.  When used herein the terms "Agent", "Agreement", "Bank
One", "Borrower", "Borrowers", "Enex", "Lender", "Lenders", "Middle Bay" and
"Production" shall have the meanings indicated above.  When used herein the
following terms shall have the following meanings:

          ADVANCE OR ADVANCES means a loan or loans hereunder.

          AFFILIATE means any Person which, directly or indirectly, controls, is
     controlled by or is under common control with the relevant Person.  For the
     purposes of this definition, "control" (including, with correlative
     meanings, the terms "controlled by" and "under


<PAGE>

     common control with"), as used with respect to any Person, shall mean a
     member of the board of directors, a partner or an officer of such
     Person, or any other Person with possession, directly or indirectly, of
     the power to direct or cause the direction of the management and
     policies of such Person, through the ownership (of record, as trustee,
     or by proxy) of voting shares, partnership interests or voting rights,
     through a management contract or otherwise.  Any Person owning or
     controlling directly or indirectly ten percent or more of the voting
     shares, partnership interests or voting rights, or other equity interest
     of another Person shall be deemed to be an Affiliate of such Person.

          ALTERNATE BASE RATE shall mean, as of any date, a rate of interest per
     annum equal to the higher of (i) the Corporate Base Rate for such date, and
     (ii) the sum of the Federal Funds Effective Rate for such date plus
     one-half of one percent (.50%) per annum.

          ASSIGNMENT AND ACCEPTANCE means a document substantially in the form
     of Exhibit  "D" hereto.

          BASE RATE shall mean, as of any date, the sum of the Alternate Base
     Rate plus the Base Rate Margin.

          BASE RATE LOANS shall mean any loan during any period which bears
     interest based upon the Alternate Base Rate or which would bear interest
     based upon the Alternate Base Rate if the Maximum Rate ceiling was not in
     effect at that particular time.

          BASE RATE MARGIN shall be:

               (i)    one-quarter of one percent (.25%) per annum whenever the
          Borrowing Base Usage is equal to or greater than 75%; or

               (ii)   zero percent (0%) per annum whenever the Borrowing Base
          Usage is less than 75%.

          BORROWING BASE shall mean the value assigned by the Lenders from time
     to time to the Oil and Gas Properties pursuant to Section 7 hereof.  Until
     the next determination of the Borrowing Base pursuant to Section 7(b)
     hereof, the Borrowing Base shall be $95,000,000.

          BORROWING BASE USAGE shall mean, as of any date, all amounts
     outstanding on the Loan plus all outstanding Letters of Credit, divided by
     the Borrowing Base.

          BORROWING DATE means the date elected by Borrowers pursuant to
     Section 2(b) hereof for an Advance on the Loan.

                                     -2-

<PAGE>

          BUSINESS DAY shall mean (i) with respect to any borrowing, payment or
     note selection of Eurodollar Loans, a day (other than Saturdays or Sundays)
     on which banks are legally open for business in Dallas, Texas and New York,
     New York and on which dealings in United States dollars are carried on in
     the London interbank market, and (ii) for all other purposes a day (other
     than Saturdays and Sundays) on which banks are legally open for business in
     Dallas, Texas.

          CASH COLLATERAL ACCOUNTS is used herein as defined in Section 12(v).

          CHANGE OF CONTROL shall occur if any Person (or syndicate or group of
     Persons which is deemed a Person for the purposes of Sections 13(d) or
     14(d)(ii) of the Securities Act of 1934, as amended) shall acquire,
     directly or indirectly an amount of issued and outstanding voting stock of
     Borrowers (including the acquisition of newly-issued stock) sufficient to
     change the control of Borrowers by causing the election or change of a
     majority of the directors of Borrowers.

          CHANGE OF MANAGEMENT means a Change of Management shall occur if Floyd
     C. Wilson ever ceases to act as President and Chief Executive Officer of
     Middle Bay and a replacement for such officer, acceptable to Agent, is not
     appointed within sixty (60) days thereafter.

          COMMITMENT means (A) For all Lenders, the LESSER of (i) $250,000,000
     or (ii) the Borrowing Base, as reduced or increased from time to time
     pursuant to Sections 2 and 7 hereof, and (B) as to any Lender, its
     obligation to make Advances hereunder on the Loan and purchase
     participations in Letters of Credit issued hereunder by the Agent in
     amounts not exceeding, in the aggregate, an amount equal to such Lender's
     Commitment Percentage times the total Commitment as of any date.  The
     Commitment of each Lender hereunder shall be adjusted from time to time to
     reflect assignments made by such Lender pursuant to Section 28 hereof.
     Each reduction in the Commitment shall result in a Pro Rata reduction in
     each Lender's Commitment.

          COMMITMENT PERCENTAGE means for each Lender the percentage derived by
     dividing its Commitment at the time of the determination by the Commitments
     of all Lenders at the time of determination.  The Commitment Percentage of
     each Lender hereunder shall be adjusted from time to time to reflect
     assignments made by such Lender pursuant to Section 28 hereof.

          CONSOLIDATED CURRENT ASSETS means the total of the consolidated
     current assets determined in accordance with GAAP, plus, as of any date,
     the unused availability on the Commitment.

                                      -3-

<PAGE>

          CONSOLIDATED CURRENT LIABILITIES means the total of consolidated
     current obligations as determined in accordance with GAAP, excluding
     therefrom, as of any date, current maturities due on the Loans.

          CONSOLIDATED EBITDA shall mean Consolidated Net Income (excluding
     gains and losses from asset sales, extraordinary and non-recurring gains
     and losses and non-recurring formation costs) plus the sum of (i) income
     tax expense (but excluding income tax expense relating to the sales or
     other disposition of assets, including capital stock, the gains and losses
     from which are excluded in the determination of Consolidated Net Income),
     plus (ii) Consolidated Interest Expense, plus (iii) depreciation, depletion
     and amortization expense, plus (iv) other non-cash expenses.

          CONSOLIDATED INTEREST EXPENSE shall mean the aggregate amount of cash
     and non-cash interest expense (including capitalized interest) of Borrowers
     as determined on a consolidated basis in accordance with GAAP in respect of
     all indebtedness.

          CONSOLIDATED NET INCOME shall mean Borrowers' consolidated net income
     after income taxes calculated in accordance with GAAP.

          CORPORATE BASE RATE means the rate per annum equal to the Corporate
     Base Rate announced by the Agent from time to time, changing when and as
     said Corporate Base Rate changes.

          CURRENT RATIO means the ratio of Consolidated Current Assets for the
     period being measured to the Consolidated Current Liabilities for such
     period.

          DEFAULT means all the events specified in Section 14 hereof,
     regardless of whether there shall have occurred any passage of time or
     giving of notice, or both, that would be necessary in order to constitute
     such event as an Event of Default.

          DEFAULTING LENDER is used herein as defined in Section 3(f) hereof.

          EFFECTIVE DATE means the date of this Agreement.

          ELIGIBLE ASSIGNEE means any of (i) a Lender or any Affiliate of a
     Lender; (ii) a commercial bank organized under the laws of the United
     States, or any state thereof, and having a combined capital and surplus of
     at least $100,000,000; (iii) a commercial bank organized under the laws of
     any other country which is a member of the Organization for Economic
     Cooperation and Development, or a political subdivision of any such
     country, and having a combined capital and surplus of at least
     $100,000,000.00, provided that such bank is acting through a branch or
     agency located in the United States; (iv) a Person that is

                                      -4-

<PAGE>

     primarily engaged in the business of commercial lending and that (A) is
     a subsidiary of a Lender, (B) a subsidiary of a Person of which a Lender
     is a subsidiary, or (C) a Person of which a Lender is a subsidiary; (v)
     any other entity (other than a natural person) which is an "accredited
     investor" (as defined in Regulation D under the Securities Act) which
     extends credit or buys loans as one of its businesses, including, but
     not limited to, insurance companies, mutual funds, investments funds and
     lease financing companies; and (vi) with respect to any Lender that is a
     fund that invests in loans, any other fund that invests in loans and is
     managed by the same investment advisor of such Lender or by an Affiliate
     of such investment advisor (and treating all such funds so managed as a
     single Eligible Assignee); provided, however, that no Affiliate of
     Borrowers shall be an Eligible Assignee.

          ENGINEERED VALUE is used herein as defined in Section 6 hereof.

          ENVIRONMENTAL LAWS means the Comprehensive Environmental Response,
     Compensation and Liability Act of 1980, as amended by the Superfund
     Amendments and Reauthorization Act of 1986, 42 U.S.C.A. Section 9601, ET
     SEQ., the Resource Conservation and Recovery Act, as amended by the
     Hazardous Solid Waste Amendment of 1984, 42 U.S.C.A. Section 6901, ET SEQ.,
     the Clean Water Act, 33 U.S.C.A. Section 1251, et seq., the Clean Air Act,
     42 U.S.C.A. Section 1251, ET SEQ., the Toxic Substances Control Act, 15
     U.S.C.A. Section 2601, ET SEQ., The Oil Pollution Act of 1990, 33 U.S.G.
     Section 2701, ET SEQ., and all other laws, statutes, codes, acts,
     ordinances, orders, judgments, decrees, injunctions, rules, regulations,
     orders, permits and restrictions of any federal, state, county, municipal
     and other governments, departments, commissions, boards, agencies, courts,
     authorities, officials and officers, domestic or foreign, relating to oil
     pollution, air pollution, water pollution, noise control and/or the
     handling, discharge, disposal or recovery of on-site or off-site asbestos,
     radioactive materials, spilled or leaked petroleum products, distillates or
     fractions and industrial solid waste or "hazardous substances" as defined
     by 42 U.S.C. Section 9601, ET SEQ., as amended, as each of the foregoing
     may be amended from time to time.

          ENVIRONMENTAL LIABILITY means any claim, demand, obligation, cause of
     action, order, violation, damage, injury, judgment, penalty or fine, cost
     of enforcement, cost of remedial action or any other costs or expense
     whatsoever, including reasonable attorneys' fees and disbursements,
     resulting from the violation or alleged violation of any Environmental Law
     or the release of any substance into the environment which is required to
     be remediated by a regulatory agency or governmental authority or the
     imposition of any Environmental Lien (as hereinafter defined) which could
     reasonably be expected to individually or in the aggregate have a Material
     Adverse Effect.

          ENVIRONMENTAL LIEN means a Lien in favor of any court, governmental
     agency or instrumentality or any other Person (i) for any Environmental
     Liability or (ii) for damages arising from or cost incurred by such court
     or governmental agency or instrumentality or

                                      -5-

<PAGE>

     other person in response to a release or threatened release of asbestos
     or "hazardous substance" into the environment, the imposition of which
     Lien could reasonably be expected to have a Material Adverse Effect.

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

          EURODOLLAR BASE RATE shall mean, with respect to any Eurodollar Loan
     for the relevant Interest Period, the rate determined by the Agent to be
     the rate at which the Agent offers to place deposits in U.S. dollars with
     first-class banks in the London interbank market at approximately 11:00
     a.m. (London time) two (2) Business Days prior to the first date of such
     Interest Period, in the approximate amount of the Agent's relevant
     Eurodollar Loan and having a maturity equal to such Interest Period.

          EURODOLLAR LOANS means any loans during any period which bear interest
     at the Eurodollar Rate, or which would bear interest at such rate if the
     Maximum Rate ceiling was not in effect at a particular time.

          EURODOLLAR MARGIN shall be:

               (i)    one and seven-eights percent (1.875%) per annum whenever
          the Borrowing Base Usage is equal to or greater than 90%;

               (ii)   one and three-quarters percent (1.75%) per annum whenever
          the Borrowing Base Usage is equal to or greater than 75%, but less
          than 90%;

               (iii)  one and one-half percent (1.50%) per annum whenever the
          Borrowing Base Usage is equal to or greater than 50%, but less than
          75%; or

               (iv)   one and one-quarter percent (1.25%) per annum whenever the
          Borrowing Base Usage is less than 50%.

          EURODOLLAR RATE means, with respect to a Eurodollar Loan for the
     relevant Interest Period, the sum of (i) the quotient of (A) the Eurodollar
     Base Rate applicable to such Interest Period, divided by (B) one minus the
     Reserve Requirement (expressed as a decimal) applicable to such Interest
     Period, plus the (iii) Eurodollar Margin.  The Eurodollar Rate shall be
     rounded to the next higher multiple of 1/16th of one percent if the rate is
     not such a multiple.

          FEDERAL FUNDS EFFECTIVE RATE shall mean, for any day, an interest rate
     per annum equal to the weighted average of the rates on overnight Federal
     funds transactions with

                                      -6-

<PAGE>


     members of the Federal Reserve System arranged by Federal funds brokers
     on such day, as published for such day (or, if such day is not a
     Business Day, for the immediately preceding Business Day) by the Federal
     Reserve Bank of New York, or, if such rate is not so published for any
     day which is a Business Day, the average of the quotations at
     approximately 10:00 a.m. (Dallas, Texas time) on such day on such
     transactions received by the Agent from three (3) Federal funds brokers
     of recognized standing selected by the Agent in its sole discretion.

          FINANCIAL STATEMENTS means balance sheets, income statements,
     statements of cash flow and appropriate footnotes and schedules, prepared
     in accordance with GAAP.

          FLOYD ACQUISITION means the acquisition by Borrowers of oil and gas
     properties and partnership interests from Floyd Oil Company and the Floyd
     Participants pursuant to several Purchase Agreements between Middle Bay,
     Floyd Oil Company and the Floyd Participants, all of which have been
     executed.

          FLOYD EQUITY TRANSACTION means the transaction whereby a portion of
     the amount paid for the oil and gas properties being acquired in the Floyd
     Acquisition will be paid for with common stock of Middle Bay.

          FLOYD PARTICIPANTS means those parties to the Floyd Acquisition who
     were participants in oil and gas programs sponsored by Floyd Oil from 1986
     through 1993.

          GAAP means generally accepted accounting principles, consistently
     applied.

          INTERCREDITOR AGREEMENTS means the Intercreditor Agreements among
     (i) Middle Bay, the Agent and 3TEC Energy Company L.L.C., (ii) Middle Bay,
     the Agent and Shoemaker Family Partnership, LP and (iii) Middle Bay, the
     Agent and Shoeinvest II, LP, each dated November 23, 1999.

          INTEREST PAYMENT DATE shall mean the last day of each calendar month
     in the case of Base Rate Loans and, in the case of Eurodollar Loans, the
     last day of the applicable Interest Period.

          INTEREST PERIOD shall mean with respect to any Eurodollar Loan (i)
     initially, the period commencing on the date such Eurodollar Loan is made
     and ending one (1), two (2), three (3), or six (6) months thereafter as
     selected by the Borrowers pursuant to Section 4(a)(ii), and (ii)
     thereafter, each period commencing on the day following the last day of the
     next preceding Interest Period applicable to such Eurodollar Loan and
     ending one (1), two (2), three (3) or six (6) months thereafter, as
     selected by the Borrowers pursuant to Section 4(a)(ii); provided, however,
     that (i) if any Interest Period would otherwise expire on a day which is
     not a Business Day, such Interest Period shall expire on the next
     succeeding

                                      -7-

<PAGE>

     Business Day unless the result of such extension would be to extend such
     Interest Period into the next calendar month, in which case such
     Interest Period shall end on the immediately preceding Business Day,
     (ii) if any Interest Period begins on the last Business Day of a
     calendar month (or on a day for which there is no numerically
     corresponding day in the calendar month at the end of such Interest
     Period) such Interest Period shall end on the last Business Day of a
     calendar month, and (iii) any Interest Period which would otherwise
     expire after the Maturity Date shall end on such Maturity Date.

          LETTERS OF CREDIT is used herein as defined in Section 2(c) hereof.

          LIEN means any mortgage, deed of trust, pledge, security interest,
     assignment, encumbrance or lien (statutory or otherwise) of every kind and
     character.

          LOAN OR LOANS means an Advance or Advances made under the Commitment.

          LOAN DOCUMENTS means this Agreement, the Notes, the Intercreditor
     Agreements, the Security Instruments and all other documents executed in
     connection with the transaction described in this Agreement.

          LOCKBOX ACCOUNTS is used herein as defined in Section 12(v).

          MAJORITY LENDERS means Lenders holding 66-2/3% or more of the
     Commitments or if the Commitments have been terminated, Lenders holding
     66-2/3% of the outstanding Loans.

          MATERIAL ADVERSE EFFECT shall mean a material adverse effect on
     (i) the assets or properties, liabilities, financial condition, business,
     operations, affairs or circumstances of the Borrowers, (ii) the ability of
     the Borrowers to carry out their respective businesses as of the date of
     this Agreement or as proposed at the date of this Agreement to be
     conducted, (iii) the ability of Borrowers to perform fully and on a timely
     basis its obligations under any of the Loan Documents, or (iv) the validity
     or enforceability of any of the Loan Documents or the rights and remedies
     of the Agent or the Lenders thereunder.

          MATURITY DATE shall mean November 30, 2002.

          MAXIMUM RATE means at any particular time in question, the maximum
     non-usurious rate of interest which under applicable law may then be
     charged on the Note.  If such Maximum Rate changes after the date hereof,
     the Maximum Rate shall be automatically increased or decreased, as the case
     may be, without notice to Borrowers from time to time as the effective date
     of each change in such Maximum Rate.

                                      -8-

<PAGE>

          MINIMUM INTEREST COVERAGE RATIO means the ratio of Consolidated EBITDA
     for the period being measured to the sum of Consolidated Interest Expense
     for the period being measured.

          MONTHLY COMMITMENT REDUCTION is used herein, as defined in Section
     2(f) hereof.

          NOTES means the Notes, substantially in the form of Exhibit  "B"
     hereto issued or to be issued hereunder to each Lender, respectively, to
     evidence the indebtedness to such Lender arising by reason of the Advances
     on the Loan, together with all modifications, renewals and extensions
     thereof or any part thereof.

          OIL AND GAS PROPERTIES means all oil, gas and mineral properties and
     interests, related personal properties, in which Borrowers grant to the
     Lenders either a first and prior lien and security interest pursuant to
     Section 6 hereof or a negative pledge pursuant to Section 13(a) hereof.

          OPERATING ACCOUNTS is used herein as defined in Section 12(v).

          OTHER FINANCING is used herein as defined in Section 15(l) hereof.

          PAYOR is used herein as defined in Section 3(h)hereof.

          PERMITTED LIENS shall mean (i) royalties, overriding royalties,
     reversionary interests, production payments and similar burdens; (ii) sales
     contracts or other arrangements for the sale of production of oil, gas or
     associated liquid or gaseous hydrocarbons which would not (when considered
     cumulatively with the matters discussed in clause (i) above) deprive
     Borrowers of any material right in respect of any such Borrowers' assets or
     properties (except for rights customarily granted with respect to such
     contracts and arrangements); (iii) statutory Liens for taxes or other
     assessments that are not yet delinquent (or that, if delinquent, are being
     contested in good faith by appropriate proceedings, levy and execution
     thereon having been stayed and continue to be stayed and for which such
     Borrower has set aside on its books adequate reserves in accordance with
     GAAP); (iv) easements, rights of way, servitudes, permits, surface leases
     and other rights in respect to surface operations, pipelines, grazing,
     logging, canals, ditches, reservoirs or the like, conditions, covenants and
     other restrictions, and easements of streets, alleys, highways, pipelines,
     telephone lines, power lines, railways and other easements and rights of
     way on, over or in respect of Borrowers' assets or properties and that do
     not individually or in the aggregate, cause a Material Adverse Effect; (v)
     materialmen's, mechanic's, repairman's, employee's, warehousemen's,
     landlord's, carrier's, pipeline's, contractor's, sub-contractor's,
     operator's, non-operator's (arising under operating or joint operating
     agreements), and other Liens (including any financing statements filed in
     respect thereof) incidental to obligations

                                      -9-

<PAGE>

     incurred by Borrowers in connection with the construction, maintenance,
     development, transportation, storage or operation of Borrowers' assets
     or properties to the extent not delinquent (or which, if delinquent, are
     being contested in good faith by appropriate proceedings and for which
     such Borrower has set aside on its books adequate reserves in accordance
     with GAAP); (vi) all contracts, agreements and instruments, and all
     defects and irregularities and other matters affecting Borrowers' assets
     and properties which were in existence at the time Borrowers' assets and
     properties were originally acquired by Borrowers and all routine
     operational agreements entered into in the ordinary course of business,
     which contracts, agreements, instruments, defects, irregularities and
     other matters and routine operational agreements are not such as to,
     individually or in the aggregate, interfere materially with the
     operation, value or use of Borrowers' assets and properties, considered
     in the aggregate; (vii) liens in connection with workmen's compensation,
     unemployment insurance or other social security, old age pension or
     public liability obligations; (viii) legal or equitable encumbrances
     deemed to exist by reason of the existence of any litigation or other
     legal proceeding or arising out of a judgment or award with respect to
     which an appeal is being prosecuted in good faith and levy and execution
     thereon have been stayed and continue to be stayed; (ix) rights reserved
     to or vested in any municipality, governmental, statutory or other
     public authority to control or regulate Borrowers' assets and properties
     in any manner, and all applicable laws, rules and orders from any
     governmental authority; (x) landlord's liens; (xi) Liens incurred
     pursuant to the Security Instruments; and (xii) Liens existing at the
     date of this Agreement which are identified in Schedule "1" hereto.

          PERSON means an individual, a corporation, a partnership, an
     association, a trust or any other entity or organization, including a
     government or political subdivision or an agency or instrumentality
     thereof.

          PLAN means any plan subject to Title IV of ERISA and maintained by
     Borrowers, or any such plan to which any Borrower is required to contribute
     on behalf of its employees.

          PRE-APPROVED CONTRACTS as used herein shall mean any contracts or
     agreements entered into in connection with any Rate Management Transaction
     designed (i) to hedge, forward sell or swap crude oil or natural gas or
     otherwise sell up to 75% of the Borrowers' anticipated production from
     proved, developed producing reserves of crude oil, and/or 75% of the
     Borrowers' anticipated production from proved, developed producing reserves
     of natural gas, during the period from the immediately preceding settlement
     date (or the commencement of the term of such hedge transactions if there
     is no prior settlement date) to such settlement date, (ii) with a maturity
     of eighteen (18) months or less, (iii) with "strike prices" per barrel
     greater than Agent's forecasted price in the most recent engineering
     evaluation of Borrowers' Oil and Gas Properties, adjusted for the
     difference between the forecasted price and the Borrowers' actual product
     price as reasonably determined by the Agent, and (iv) with counterparties
     to the hedging agreement which are reasonably

                                     -10-

<PAGE>

     approved by Agent.

          PRO RATA OR PRO RATA PART means for each Lender, (i) for all purposes
     where no Loan is outstanding, such Lender's Commitment Percentage and (ii)
     otherwise, the proportion which the portion of the outstanding Loans owed
     to such Lender bears to the aggregate outstanding Loans owed to all Lenders
     at the time in question.

          RATE MANAGEMENT TRANSACTION means any transaction (including an
     agreement with respect thereto) now existing or hereafter entered into
     between Borrowers and Agent or the Lenders which is a rate swap, basis
     swap, forward rate transaction, commodity swap, commodity option, equity or
     equity index swap, equity or equity index option, bond option, interest
     rate option, forward exchange transaction, cap transaction, floor
     transaction, collar transaction, forward transaction, currency swap
     transaction, cross-currency rate swap transaction, currency option or any
     other similar transaction (including any option with respect to any of
     these transactions) or any combination thereof, whether linked to one or
     more interest rates, foreign currencies, commodity prices, equity prices or
     other financial measures.

          REGULATION D shall mean Regulation D of the Board of Governors of the
     Federal Reserve System as from time to time in effect and any successor
     thereto and other regulation or official interpretation of said Board of
     Governors relating to reserve requirements applicable to member banks of
     the Federal Reserve System.

          REIMBURSEMENT OBLIGATIONS means, at any time, the obligations of the
     Borrowers in respect of all Letters of Credit then outstanding to reimburse
     amounts paid by any Lender in respect of any drawing or drawings under a
     Letter of Credit.

          RELEASE PRICE is used herein as defined in Section 12(r) hereof.

          REQUIRED PAYMENT is used herein as defined in Section 3(h) hereof.

          RESERVE REQUIREMENT means, with respect to any Interest Period, the
     maximum aggregate reserve requirement (including all basic, supplemental,
     marginal and other reserves) which is imposed under Regulation D or
     Eurocurrency liabilities.

           SECURITY INSTRUMENTS  is used collectively herein to mean this
     Agreement, all Deeds of Trust, Mortgages, Security Agreements, Assignments
     of Production and Financing Statements and other collateral documents
     covering the Oil and Gas Properties and related personal property,
     equipment, oil and gas inventory and proceeds of the foregoing, all such
     documents to be in form and substance satisfactory to Agent.


                                     -11-
<PAGE>
          SECURITY PURCHASE AGREEMENTS mean (i) a Securities Purchase Agreement
     dated August 27, 1999 between Middle Bay and Shoemaker Family Partnership,
     LP, (ii) a Securities Purchase Agreement dated August 27, 1999 between
     Middle Bay and Shoeinvest II, LP, (iii) a Securities Purchase Agreement
     dated July 1, 1999 between Middle Bay and 3TEC Energy Company, L.L.C. and
     (iv) a Securities Purchase Agreement dated October 19, 1999 between Middle
     Bay and The Prudential Insurance Company of America, as amended by that
     certain Letter Amendment No. 1 to Middle Bay Oil Company, Inc. Security
     Purchase Agreement dated November 23, 1999.

          SERIES B PREFERRED STOCK means 266,667 shares of Middle Bay preferred
     stock which has been designated as Series B and has a stated value of $7.50
     per share, all of which is issued and outstanding.

          SERIES C PREFERRED STOCK means 2,300,000 shares of Middle Bay
     preferred stock which has been designated as Series C and has a stated
     value of $5.00 per share, 2,177,814 shares of which is issued and
     outstanding.

          SUBORDINATED LENDERS 3TEC Energy Company L.L.C., Shoemaker Family
     Partnership, LP, Shoeinvest II, LP and The Prudential Insurance Company of
     America.

          SUBORDINATED NOTES means promissory notes issued by Middle Bay
     pursuant to the Security Purchase Agreements.

          SUBSIDIARY means any corporation or other entity of which securities
     or other ownership interests having ordinary voting power to elect a
     majority of the board of directors or other persons performing similar
     functions are at the time directly or indirectly owned by Borrowers or
     another subsidiary.

          TOTAL OUTSTANDINGS means, as of any date, the sum of (i) the total
     principal balance outstanding on the Notes, plus (ii) the total face amount
     of all outstanding Letters of Credit, plus (iii) the total amount of all
     unpaid Reimbursement Obligations.

          TRANCHE means a set of Eurodollar Loans made by the Lenders at the
     same time and for the same Interest Period.

          UNSCHEDULED REDETERMINATIONS means a redetermination of the Borrowing
     Base made at any time other than on the dates set for the regular
     semi-annual redetermination of the Borrowing Base which are made (A) at
     the request of Borrowers (but only once between Borrowing Base
     redeterminations), (B) at the request of Majority Lenders.

                                    -12-

<PAGE>

          UNUSED COMMITMENT FEE RATE shall be:

               (i)    one-half of one percent (.50%) per annum whenever the
          Borrowing Base Usage is equal to or greater than 90%;

               (ii)   three-eighths of one percent (.375%) per annum whenever
          the Borrowing Base Usage is equal to or greater than 50% but less than
          90%; or

               (iii)  one-fourth of one percent (.25%) per annum whenever the
          Borrowing Base Usage is less than 50%.

     2.   COMMITMENTS OF THE LENDER.

          (a)  TERMS OF COMMITMENT.  On the terms and conditions hereinafter set
     forth, each Lender agrees severally to make Advances to the Borrowers from
     time to time during the period beginning on the Effective Date and ending
     on the Maturity Date in such amounts as the Borrowers may request up to an
     amount not to exceed, in the aggregate principal amount outstanding at any
     time, the Commitment less Total Outstandings.  The obligation of the
     Borrowers hereunder shall be evidenced by this Agreement and the Notes
     issued in connection herewith, said Notes to be as described in Section 3
     hereof.  Notwithstanding any other provision of this Agreement, no Advance
     shall be required to be made hereunder if any Event of Default (as
     hereinafter defined) has occurred and is continuing or if any event or
     condition has occurred or failed to occur which with the passage of time or
     service of notice, or both, would constitute an Event of Default.  Each
     Advance under the Commitment shall be an aggregate amount of at least
     $1,000,000 or any whole multiples of $100,000 in excess thereof.
     Irrespective of the face amount of the Note or Notes, the Lenders shall
     never have the obligation to Advance any amount or amounts in excess of the
     Commitment or to increase the Commitment.

          (b)  PROCEDURE FOR BORROWING.  Whenever the Borrowers desire an
     Advance hereunder, they shall give Agent telegraphic, telex, facsimile or
     telephonic notice ("Notice of Borrowing") of such requested Advance, which
     in the case of telephonic notice, shall be promptly confirmed in writing.
     Each Notice of Borrowing shall be in the form of Exhibit "A" attached
     hereto and shall be received by Agent not later than 11:00 a.m. Dallas,
     Texas time, (i) one Business Day prior to the Borrowing Date in the case of
     the Base Rate Loan, or (ii) three Business Days prior to any proposed
     Borrowing Date in the case of Eurodollar Loans.  Each Notice of Borrowing
     shall specify (i) the Borrowing Date (which, if at Base Rate Loan, shall be
     a Business Day and if a Eurodollar Loan, a Business Day), (ii) the
     principal amount to be borrowed, (iii) the portion of the Advance
     constituting Base Rate Loans and/or Eurodollar Loans, (iv) if any portion
     of the proposed Advance is to constitute Eurodollar Loans, the initial
     Interest Period selected by Borrowers pursuant to Section 4

                                    -13-

<PAGE>

     hereof to be applicable thereto, and (v) the date upon which such Advance
     is required. Upon receipt of such Notice, Agent shall advise each Lender
     thereof; provided, that if the Lenders have received at least one (1) day's
     notice of such Advance prior to funding of a Base Rate Loan, or at least
     three (3) days' notice of each Advance prior to funding in the case of a
     Eurodollar Loan, each Lender shall provide Agent at its office at 1717
     Main Street, Dallas, Texas 75201, not later than 1:00 p.m., Dallas, Texas
     time, on the Borrowing Date, in immediately available funds, its pro rata
     share of the requested Advance, but the aggregate of all such fundings by
     each Lender shall never exceed such Lender's Commitment.  Not later than
     2:00 p.m., Dallas, Texas time, on the Borrowing Date, Agent shall make
     available to the Borrowers at the same office, in like funds, the aggregate
     amount of such requested Advance.  Neither Agent nor any Lender shall incur
     any liability to the Borrowers in acting upon any Notice referred to above
     which Agent or such Lender believes in good faith to have been given by a
     duly authorized officer or other person authorized to borrow on behalf of
     Borrowers or for otherwise acting in good faith under this Section 2(b).
     Upon funding of Advances by Lenders in accordance with this Agreement,
     pursuant to any such Notice, the Borrowers shall have effected Advances
     hereunder.

          (c)  LETTERS OF CREDIT.  On the terms and conditions hereinafter set
     forth, the Agent shall from time to time during the period beginning on the
     Effective Date and ending on the Maturity Date upon request of Borrowers
     issue standby Letters of Credit for the account of Borrowers (the "Letters
     of Credit") in such face amounts as Borrowers may request, but not to
     exceed in the aggregate face amount at any time outstanding the sum of Five
     Million Dollars ($5,000,000).  The face amount of all Letters of Credit
     issued and outstanding hereunder shall be considered as Advances on the
     Commitment for Borrowing Base purposes and all payments made by the Agent
     on such Letters of Credit shall be considered as Advances under the Notes.
     Each Letter of Credit issued for the account of Borrowers hereunder shall
     (i) be in favor of such beneficiaries as specifically requested by
     Borrowers, (ii) have an expiration date not exceeding the earlier of
     (a) one year or (b) the Maturity Date, and (iii) contain such other terms
     and provisions as may be required by issuing Lender.  Each Lender (other
     than Agent) agrees that, upon issuance of any Letter of Credit hereunder,
     it shall automatically acquire a participation in the Agent's liability
     under such Letter of Credit in an amount equal to such Lender's Commitment
     Percentage of such liability, and each Lender (other than Agent) thereby
     shall absolutely, unconditionally and irrevocably assume, as primary
     obligor and not as surety, and shall be unconditionally obligated to Agent
     to pay and discharge when due, its Commitment Percentage of Agent's
     liability under such Letter of Credit.  The Borrowers hereby
     unconditionally agree to pay and reimburse the Agent for the amount of each
     demand for payment under any Letter of Credit that is in substantial
     compliance with the provisions of any such Letter of Credit at or prior to
     the date on which payment is to be made by the Agent to the beneficiary
     thereunder, without presentment, demand, protest or other formalities of
     any kind.  Upon receipt from any beneficiary of any Letter of Credit of any
     demand for payment under such Letter of

                                    -14-

<PAGE>

     Credit, the Agent shall promptly notify the Borrowers of the demand and
     the date upon which such payment is to be made by the Agent to such
     beneficiary in respect of such demand. Forthwith upon receipt of such
     notice from the Agent, Borrowers shall advise the Agent whether or not
     they intend to borrow hereunder to finance their obligations to
     reimburse the Agent, and if so, submit a Notice of Borrowing as provided
     in Section 2(b) hereof.  If Borrowers fail to so advise Agent and
     thereafter fail to reimburse Agent, the Agent shall notify each Lender
     of the demand and the failure of the Borrowers to reimburse the Agent,
     and each Lender shall reimburse the Agent for its Commitment Percentage
     of each such draw paid by the Agent and unreimbursed by the Borrowers.
     All such amounts paid by Agent and/or reimbursed by the Lenders shall be
     treated as an Advance or Advances under the Commitment, which Advances
     shall be immediately due and payable and shall bear interest at the
     Maximum Rate.

          (d)  PROCEDURE FOR OBTAINING LETTERS OF CREDIT.  The amount and date
     of issuance, renewal, extension or reissuance of a Letter of Credit
     pursuant to the Lenders' commitments above in Section 2(c) shall be
     designated by Borrowers' written request delivered to Agent at least three
     (3) Business Days prior to the date of such issuance, renewal, extension or
     reissuance.  Concurrently with or promptly following the delivery of the
     request for a Letter of Credit, Borrowers shall execute and deliver to the
     Agent an application and agreement with respect to the Letters of Credit,
     said application and agreement to be in the form used by the Agent.  The
     Agent shall not be obligated to issue, renew, extend or reissue such
     Letters of Credit if (A) the amount thereon when added to the face amount
     of the outstanding Letters of Credit plus any Reimbursement Obligations
     exceeds Five Million Dollars ($5,000,000) or (B) the amount thereof when
     added to the Total Outstandings would exceed the Commitment.  Borrowers
     agree to pay the Agent for the benefit of the Lenders commissions for
     issuing the Letters of Credit (calculated separately for each Letter of
     Credit) in an amount equal to the greater of (i) the Eurodollar Margin then
     in effect times the maximum face amount of the Letter of Credit or
     (ii) $500.00.  Borrowers further agree to pay Agent an additional fronting
     fee equal to one-eighth of one percent (0.125%) per annum on the maximum
     face amount of each Letter of Credit.  Such commissions shall be payable
     prior to the issuance of each Letter of Credit and thereafter on each
     anniversary date of such issuance while such Letter of Credit is
     outstanding.

          (e)  VOLUNTARY REDUCTION OF COMMITMENT.  The Borrowers may at any
     time, or from time to time, upon not less than three (3) Business Days'
     prior written notice to Agent, reduce or terminate the Commitment;
     provided, however, that (i) each reduction in the Commitment must be in the
     amount of $1,000,000 or more, in increments of $1,000,000 and (ii) each
     reduction must be accompanied by a prepayment of the Notes in the amount by
     which the outstanding principal balance of the Notes exceeds the Commitment
     as reduced pursuant to this Section 2.

                                    -15-

<PAGE>

          (f)  MANDATORY COMMITMENT REDUCTIONS -

               (i)    MONTHLY COMMITMENT REDUCTION.  The Borrowing Base and the
          Commitment shall be reduced as of the first day of each month by an
          amount determined by the Lenders pursuant to Section 7(b) hereof (the
          "Monthly Commitment Reduction").  The Monthly Commitment Reduction
          shall be $0 per month until redetermined pursuant to Section 7(b)
          hereof.  If as a result of any such Monthly Commitment Reduction, the
          Total Outstandings ever exceed the Commitment then in effect, the
          Borrowers shall make the mandatory prepayment of principal required
          pursuant to Section 9(b) hereof.

               (ii)   OTHER REDUCTIONS.  The Borrowing Base shall be reduced
          from time to time by the amount of any prepayment required by
          Section 12(r) hereof upon the sale of assets, provided, however, that
          such reduction shall only remain in effect until the next
          redetermination of the Borrowing Base is made pursuant to Section 7(b)
          hereof.  Such temporary reduction of the Borrowing Base shall not
          result in a reduction of the Commitment unless the Borrowers elect to
          permanently reduce the Commitment pursuant to the provisions of
          Section 2(e) hereof.  If, as a result of any such reduction in the
          Borrowing Base, the Total Outstandings ever exceed the Borrowing Base
          then in effect, the Borrowers shall make the mandatory prepayment of
          principal required pursuant to Section 9(b) hereof.

          (g)  SEVERAL OBLIGATIONS.  The obligations of the Lenders under the
     Commitments are several and not joint.  The failure of any Lender to make
     an Advance required to be made by it shall not relieve any other Lender of
     its obligation to make its Advance, and no Lender shall be responsible for
     the failure of any other Lender to make the Advance to be made by such
     other Lender.  No Lender shall be required to lend hereunder any amount in
     excess of its legal lending limit.

          (h)  TYPE AND NUMBER OF ADVANCES.  Any Advance of the Commitment may
     be a Base Rate Loan or a Eurodollar Loan, or a combination thereof, as
     selected by the Borrowers pursuant to Section 4 hereof.  The total number
     of Tranches which may be outstanding at any time shall never exceed four
     (4).

          (i)  LIMITED LIABILITY OF ENEX AND PRODUCTION. While the obligations
     of the Borrowers under the Agreement and the Notes shall be joint and
     several obligations of Middle Bay, Enex and Production, the liability of
     Enex and Production thereunder shall be limited to the maximum amount of
     liability that can be incurred without rendering the obligations of Enex
     and Production under the Loan Documents voidable under applicable law
     relating to fraudulent conveyance or fraudulent transfer, and not for any
     greater amount.

                                    -16-

<PAGE>

     3.   NOTES EVIDENCING LOANS.  The loans described above in Section 2 shall
be evidenced by promissory notes of Borrowers as follows:

          (a)  FORM OF NOTES.  The Loan shall be evidenced by a Note or Notes in
     the aggregate face amount of $250,000,000, and shall be in the form
     of Exhibit "B" hereto with appropriate insertions (each a "Note").
     Notwithstanding the face amount of the Notes, the actual principal amount
     due from the Borrowers to Lenders on account of the Notes, as of any date
     of computation, shall be the sum of Advances then and theretofore made on
     account thereof, less all principal payments actually received by Lenders
     in collected funds with respect thereto.  Although the Notes may be dated
     as of the Effective Date, interest in respect thereof shall be payable only
     for the period during which the loans evidenced thereby are outstanding
     and, although the stated amount of the Notes may be higher, the Notes shall
     be enforceable, with respect to Borrowers' obligation to pay the principal
     amount thereof, only to the extent of the unpaid principal amount of the
     Loans.  Irrespective of the face amount of the Notes, no Lender shall ever
     be obligated to advance on the Commitment any amount in excess of its
     Commitment then in effect.

          (b)  ISSUANCE OF ADDITIONAL NOTES.  At the Effective Date there shall
     be outstanding Notes in the aggregate face amount of $250,000,000 payable
     to the order of Lenders.  From time to time new Notes may issued to other
     Lenders as such Lenders become parties to this Agreement.  Upon request
     from Agent, the Borrowers shall execute and deliver to Agent any such new
     or additional Notes.  From time to time as new Notes are issued the Agent
     shall require that each Lender exchange its Note(s) for newly issued
     Note(s) to better reflect the extent of each Lender's Commitments
     hereunder.

          (c)  INTEREST RATES.  The unpaid principal balance of the Notes shall
     bear interest from time to time as set forth in Section 4 hereof.

          (d)  PAYMENT OF INTEREST.  Interest on the Notes shall be payable on
     each Interest Payment Date.

          (e)  PAYMENT OF PRINCIPAL.   Principal of the Note or Notes shall be
     due and payable to the Agent for the ratable benefit of the Lenders on the
     Maturity Date unless earlier due in whole or in part as a result of an
     acceleration of the amount due or pursuant to the mandatory prepayment
     provisions of Section 9(b) hereof.

          (f)  PAYMENT TO LENDERS.  Each Lender's Pro Rata Part of payment or
     prepayment of the Loans shall be directed by wire transfer to such Lender
     by the Agent at the address provided to the Agent for such Lender for
     payments no later than 2:00 p.m., Dallas, Texas, time on the Business Day
     such payments or prepayments are deemed hereunder to have been received by
     Agent; provided, however, in the event that any Lender

                                    -17-

<PAGE>

     shall have failed to make an Advance as contemplated under Section 2
     hereof (a "Defaulting Lender") and the Agent or another Lender or
     Lenders shall have made such Advance, payment received by Agent for the
     account of such Defaulting Lender or Lenders shall not be distributed to
     such Defaulting Lender or Lenders until such Advance or Advances shall
     have been repaid in full to the Lender or Lenders who funded such
     Advance or Advances.  Any payment or prepayment received by Agent at any
     time after 12:00 noon, Dallas, Texas, time on a Business Day shall be
     deemed to have been received on the next Business Day.  Interest shall
     cease to accrue on any principal as of the end of the day preceding the
     Business Day on which any such payment or prepayment is deemed hereunder
     to have been received by Agent.  If Agent fails to transfer any
     principal amount to any Lender as provided above, then Agent shall
     promptly direct such principal amount by wire transfer to such Lender.

          (g)  SHARING OF PAYMENTS, ETC.  If any Lender shall obtain any payment
     (whether voluntary, involuntary, or otherwise) on account of the Loans,
     (including, without limitation, any set-off) which is in excess of its Pro
     Rata Part of payments on either of the Loans, as the case may be, obtained
     by all Lenders, such Lender shall purchase from the other Lenders such
     participation as shall be necessary to cause such purchasing Lender to
     share the excess payment pro rata with each of them; provided that, if all
     or any portion of such excess payment is thereafter recovered from such
     purchasing Lender, the purchase shall be rescinded and the purchase price
     restored to the extent of the recovery.  The Borrowers agree that any
     Lender so purchasing a participation from another Lender pursuant to this
     Section may, to the fullest extent permitted by law, exercise all of its
     rights of payment (including the right of offset) with respect to such
     participation as fully as if such Lender were the direct creditor of the
     Borrowers in the amount of such participation.

          (h)  NON-RECEIPT OF FUNDS BY THE AGENT. Unless the Agent shall have
     been notified by a Lender or the Borrowers (the "Payor") prior to the date
     on which such Lender is to make payment to the Agent of the proceeds of a
     Loan to be made by it hereunder or the Borrowers are to make a payment to
     the Agent for the account of one or more of the Lenders, as the case may be
     (such payment being herein called the "Required Payment"), which notice
     shall be effective upon receipt, that the Payor does not intend to make the
     Required Payment to the Agent, the Agent may assume that the Required
     Payment has been made and may, in reliance upon such assumption (but shall
     not be required to), make the amount thereof available to the intended
     recipient on such date and, if the Payor has not in fact made the Required
     Payment to the Agent, the recipient of such payment shall, on demand, pay
     to the Agent the amount made available to it together with interest thereon
     in respect of the period commencing on the date such amount was made
     available by the Agent until the date the Agent recovers such amount at the
     rate applicable to such portion of the applicable Loan.

                                    -18-

<PAGE>

     4.   INTEREST RATES.

          (a)  OPTIONS.

               (i)    BASE RATE LOANS.  On all Base Rate Loans the
          Borrowers agree to pay interest on the Notes calculated on the
          basis of the actual days elapsed in a year consisting of 360 days
          with respect to the unpaid principal amount of each Base Rate
          Loan from the date the proceeds thereof are made available to
          Borrowers until maturity (whether by acceleration or otherwise),
          at a varying rate per annum equal to the lesser of (i) the
          Maximum Rate (defined herein), or (ii) the Base Rate.  Subject to
          the provisions of this Agreement as to prepayment, the principal
          of the Notes representing Base Rate Loans shall be payable as
          specified in Section 3(e) hereof and the interest in respect of
          each Base Rate Loan shall be payable on each Interest Payment
          Date.  Past due principal and, to the extent permitted by law,
          past due interest in respect to each Base Rate Loan, shall bear
          interest, payable on demand, at a rate per annum equal to the
          Maximum Rate.

               (ii)   EURODOLLAR LOANS.  On all Eurodollar Loans the
          Borrowers agree to pay interest calculated on the basis of a year
          consisting of 360 days with respect to the unpaid principal
          amount of each Eurodollar Loan from the date the proceeds thereof
          are made available to Borrowers until maturity (whether by
          acceleration or otherwise), at a varying rate per annum equal to
          the lesser of (i) the Maximum Rate, or (ii) the Eurodollar Rate.
          Subject to the provisions of this Agreement with respect to
          prepayment, the principal of the Notes shall be payable as
          specified in Section 3(e) hereof and the interest with respect to
          each Eurodollar Loan shall be payable on each Interest Payment
          Date.  Past due principal and, to the extent permitted by law,
          past due interest shall bear interest, payable on demand, at a
          rate per annum equal to the Maximum Rate.  Upon three (3)
          Business Days' written notice prior to the making by the Lenders
          of any Eurodollar Loan (in the case of the initial Interest
          Period therefor) or the expiration date of each succeeding
          Interest Period (in the case of subsequent Interest Periods
          therefor), Borrowers shall have the option, subject to compliance
          by Borrowers with all of the provisions of this Agreement, as
          long as no Event of Default exists, to specify whether the
          Interest Period commencing on any such date shall be a one (1),

                                    -19-

<PAGE>

          two (2), three (3) or six (6) month period.  If Agent shall not
          have received timely notice of a designation of such Interest
          Period as herein provided, Borrowers shall be deemed to have
          elected to convert all maturing Eurodollar Loans to Base Rate
          Loans.

          (b)  INTEREST RATE DETERMINATION.  The Agent shall determine each
     interest rate applicable to the Loans hereunder.  The Agent shall give
     prompt notice to the Borrowers and the Lenders of each rate of interest so
     determined and its determination thereof shall be conclusive absent error.

          (c)  CONVERSION OPTION.  Borrowers may elect from time to time (i) to
     convert all or any part of its Eurodollar Loans to Base Rate Loans by
     giving Agent irrevocable notice of such election in writing prior to 10:00
     a.m. (Dallas, Texas time) on the conversion date and such conversion shall
     be made on the requested conversion date, provided that any such conversion
     of Eurodollar Loan shall only be made on the last day of the Interest
     Period with respect thereof, (ii) to convert all or any part of its Base
     Rate Loans to Eurodollar Loans by giving the Agent irrevocable written
     notice of such election three (3) Business Days prior to the proposed
     conversion and such conversion shall be made on the requested conversion
     date or, if such requested conversion date is not a Business Day, on the
     next succeeding Business Day.  Any such conversion shall not be deemed to
     be a prepayment of any of the loans for purposes of this Agreement on the
     Notes.

          (d)  RECOUPMENT.  If at any time the applicable rate of interest
     selected pursuant to Sections 4(a)(i) or 4(a)(ii) above shall exceed the
     Maximum Rate, thereby causing the interest on the Notes to be limited to
     the Maximum Rate, then any subsequent reduction in the interest rate so
     selected or subsequently selected shall not reduce the rate of interest on
     the Notes below the Maximum Rate until the total amount of interest accrued
     on the Note equals the amount of interest which would have accrued on the
     Notes if the rate or rates selected pursuant to Sections 4(a)(i) or (ii),
     as the case may be, had at all times been in effect.

     5.   SPECIAL PROVISIONS RELATING TO LOANS.

          (a)  UNAVAILABILITY OF FUNDS OR INADEQUACY OF PRICING.  In the event
     that, in connection with any proposed Eurodollar Loan, the Agent reasonably
     determines, which determination shall, absent manifest error, be final,
     conclusive and binding upon all parties, due to changes in circumstances
     since the date hereof, adequate and fair means do not exist for determining
     the Eurodollar Rate or such rate will not accurately reflect the costs to
     the Lenders of funding Eurodollar Loan for such Interest Period, the Agent
     shall give notice of such determination to the Borrowers and the Lenders,
     whereupon, until the Agent notifies the Borrowers and the Lenders that the
     circumstances giving rise to such suspension no

                                    -20-

<PAGE>

     longer exist, the obligations of the Lenders to make, continue or
     convert Loan into Eurodollar Loan shall be suspended, and all loans to
     Borrowers shall be Base Rate Loan during the period of suspension.

          (b)  CHANGE IN LAWS.  If at any time any new law or any change in
     existing laws or in the interpretation of any new or existing laws shall
     make it unlawful for any Lender to make or continue to maintain or fund
     Eurodollar Loan hereunder, then such Lender shall promptly notify Borrowers
     in writing and such Lender's obligation to make, continue or convert Loan
     into Eurodollar Loan under this Agreement shall be suspended until it is no
     longer unlawful for such Lender to make or maintain Eurodollar Loan.  Upon
     receipt of such notice, Borrowers shall either repay the outstanding
     Eurodollar Loan owed to the Lenders, without penalty, on the last day of
     the current Interest Periods (or, if any Lender may not lawfully continue
     to maintain and fund such Eurodollar Loan, immediately), or Borrowers may
     convert such Eurodollar Loan at such appropriate time to Base Rate Loan.

          (c)  INCREASED COST OR REDUCED RETURN.

               (i)    If, after the date hereof, the adoption of any applicable
          law, rule, or regulation, or any change in any applicable law, rule,
          or regulation, or any change in the interpretation or administration
          thereof by any governmental authority, central bank, or comparable
          agency charged with the interpretation or administration thereof, or
          compliance by any Lender with any request or directive (whether or not
          having the force of law) of any such governmental authority, central
          bank, or comparable agency:

                      (A)     shall subject such Lender to any tax, duty, or
               other charge with respect to any Eurodollar Loan, its Notes, or
               its obligation to make Eurodollar Loan, or change the basis of
               taxation of any amounts payable to such Lender under this
               Agreement or its Notes in respect of any Eurodollar Loan (other
               than franchise taxes and taxes imposed on the overall net income
               of such Lender);

                      (B)     shall impose, modify, or deem applicable any
               reserve, special deposit, assessment, or similar requirement
               (other than reserve requirements, if any, taken into account in
               the determination of the Eurodollar Rate) relating to any
               extensions of credit or other assets of, or any deposits with or
               other liabilities or commitments of, such Lender, including the
               Commitment of such Lender hereunder; or

                      (C)     shall impose on such Lender or on the London
               interbank market any other condition affecting this Agreement or
               its Notes or any

                                    -21-

<PAGE>

               of such extensions of credit or liabilities or commitments;

          and the result of any of the foregoing is to increase the cost to such
          Lender of making, converting into, continuing, or maintaining any
          Eurodollar Loan or to reduce any sum received or receivable by such
          Lender under this Agreement or its Notes with respect to any
          Eurodollar Loan, then  Borrowers shall pay to such Lender on demand
          such amount or amounts as will reasonably compensate such Lender for
          such increased cost or reduction.  If any Lender requests compensation
          by Borrowers under this Section 5(c), Borrowers may, by notice to such
          Lender (with a copy to Agent), suspend the obligation of such Lender
          to make or continue Eurodollar Loan, or to convert all or part of the
          Base Rate Loan owing to such Lender to Eurodollar Loan, until the
          event or condition giving rise to such request ceases to be in effect
          (in which case the provisions of Section 5(c) shall be applicable);
          PROVIDED that such suspension shall not affect the right of such
          Lender to receive the compensation so requested.

               (ii)   If, after the date hereof, any Lender shall have
          determined that the adoption of any applicable law, rule, or
          regulation regarding capital adequacy or any change therein or in the
          interpretation or administration thereof by any governmental
          authority, central bank, or comparable agency charged with the
          interpretation or administration thereof, or any request or directive
          regarding capital adequacy (whether or not having the force of law) of
          any such governmental authority, central bank, or comparable agency,
          has or would have the effect of reducing the rate of return on the
          capital of such Lender or any corporation controlling such Lender as a
          consequence of such Lender's obligations hereunder to a level below
          that which such Lender or such corporation could have achieved but for
          such adoption, change, request, or directive (taking into
          consideration its policies with respect to capital adequacy), then
          from time to time upon demand Borrowers shall pay to such Lender such
          additional amount or amounts as will reasonably compensate such Lender
          for such reduction.

               (iii)  Each Lender shall promptly notify Borrowers and Agent of
          any event of which it has knowledge, occurring after the date hereof,
          which will entitle such Lender to compensation pursuant to this
          Section 5(c) and will designate a separate lending office, if
          applicable, if such designation will avoid the need for, or reduce the
          amount of, such compensation and will not, in the judgment of such
          Lender, be otherwise disadvantageous to it.  Any Lender claiming
          compensation under this Section 5(c) shall furnish to Borrowers and
          Agent a statement setting forth the additional amount or amounts to be
          paid to it hereunder which shall be conclusive in the absence of
          manifest error.  In

                                    -22-

<PAGE>

          determining such amount, such Lender may use any reasonable averaging
          and attribution methods.

               (iv)   Any Lender giving notice to the Borrowers through the
          Agent, pursuant to Sections 3(k) or 5(c) shall give to the Borrowers a
          statement signed by an officer of such Lender setting forth in
          reasonable detail the basis for, and the calculation of such
          additional cost, reduced payments or capital requirements, as the case
          may be, and the additional amounts required to compensate such Lender
          therefor.

               (v)    Within five (5) Business Days after receipt by the
          Borrowers of any notice referred to in Sections 3(k) or 5(c), the
          Borrowers shall pay to the Agent for the account of the Lender issuing
          such notice such additional amounts as are required to compensate such
          Lender for the increased cost, reduce payments or increase capital
          requirements identified therein, as the case may be.

          (d)  DISCRETION OF LENDER AS TO MANNER OF FUNDING.  Notwithstanding
     any provisions of this Agreement to the contrary, each Lender shall be
     entitled to fund and maintain its funding of all or any part of its Loan in
     any manner it sees fit, it being understood, however, that for the purposes
     of this Agreement all determinations hereunder shall be made as if each
     Lender had actually funded and maintained each Eurodollar Loan through the
     purchase of deposits having a maturity corresponding to the last day of the
     Interest Period applicable to such Eurodollar Loan and bearing an interest
     rate to the applicable interest rate for such Eurodollar Period.

          (e)  BREAKAGE FEES.   Without duplication under any other provision
     hereof, if any Lender incurs any loss, cost or expense including, without
     limitation, any loss of profit and loss, cost, expense or premium
     reasonably incurred by reason of the liquidation or re-employment of
     deposits or other funds acquired by such Lender to fund or maintain any
     Eurodollar Loan or the relending or reinvesting of such deposits or amounts
     paid or prepaid to the Lenders as a result of any of the following events
     other than any such occurrence as a result in the change of circumstances
     described in Sections 5(a) and (b):

               (i)    any payment, prepayment or conversion of a Eurodollar Loan
          on a date other than the last day of its Interest Period (whether by
          acceleration, prepayment or otherwise);

               (ii)   any failure to make a principal payment of a Eurodollar
          Loan on the due date thereof; or

               (iii)  any failure by the Borrowers to borrow, continue, prepay
          or
                                    -23-

<PAGE>

          convert to a Eurodollar Loan on the dates specified in a notice
          given pursuant to Section 2(c) or 4(c) hereof;

     then the Borrowers shall pay to such Lender such amount as will reimburse
     such Lender for such loss, cost or expense.  If any Lender makes such a
     claim for compensation, it shall furnish to Borrowers and Agent a statement
     setting forth the amount of such loss, cost or expense in reasonable detail
     (including an explanation of the basis for and the computation of such
     loss, cost or expense) and the amounts shown on such statement shall be
     conclusive and binding absent manifest error.

     6.   COLLATERAL SECURITY.  To secure the performance by Borrowers of their
obligations hereunder, and under the Notes and Security Instruments, whether now
or hereafter incurred, matured or unmatured, direct or contingent, joint or
several, or joint and several, including extensions, modifications, renewals and
increases thereof, and substitutions therefore, Borrowers shall grant and assign
to Agent for the ratable benefit of the Lenders a first and prior Lien on
certain of its Oil and Gas Properties, certain related equipment, oil and gas
inventory and proceeds of the foregoing.  The Oil and Gas Properties herewith
mortgaged to the Agent shall represent not less than 85% of the Engineered Value
(as hereinafter defined) of Borrowers' Oil and Gas Properties as of the
Effective Date.  Obligations arising from agreements arising from Rate
Management Transactions between Borrowers and one or more of the Lenders or an
Affiliate of any of the Lenders providing for the hedging, forward sale or swap
of crude oil or natural gas or interest rate protection shall be secured by the
Collateral (as hereinafter defined) on a pari passu basis with the indebtedness
and obligations of the Borrowers under the Loan Documents.  In addition to the
foregoing, the Agent, on behalf of the Lenders, shall require that all notes and
liens currently held by Compass Bank to secure obligations under the Credit
Agreement be assigned to the Agent for the ratable benefit of the Lenders under
this Agreement.  All Oil and Gas Properties and other collateral in which
Borrowers herewith grant or hereafter grant to Agent for the ratable benefit of
the Lenders a first and prior Lien (to the satisfaction of the Agent) in
accordance with this Section 6 or the Oil and Gas Properties and other
collateral in which the Agent has acquired an interest for the ratable benefit
of the Lenders from Compass Bank, as such properties and interests are from time
to time constituted, are hereinafter collectively called the "Collateral".

     The granting and assigning of such security interests and Liens by
Borrowers shall be pursuant to Security Instruments in form and substance
reasonably satisfactory to the Agent.  Concurrently with the delivery of each of
the Security Instruments or within a reasonable time thereafter, Borrowers shall
furnish to the Agent mortgage and title opinions and other title information
satisfactory to Agent with respect to the title and Lien status of Borrowers'
interests in not less than 90% of the Engineered Value of the Oil and Gas
Properties covered by the Security Instruments as Agent shall have designated.
"Engineered Value" for this purpose shall mean future net revenues discounted at
the discount rate being used by the Agent as of the date

                                    -24-

<PAGE>

of any such determination utilizing the pricing parameters used in the
engineering report furnished to the Agent for the ratable benefit of the
Lenders, pursuant to Sections 7 and 12 hereof.  Borrowers will cause to be
executed and delivered to the Agent, in the future, additional Security
Instruments if the Agent reasonably deems such are necessary to insure
perfection or maintenance of Lenders' security interests and Liens in the Oil
and Gas Properties or any part thereof.

     7.   BORROWING BASE.

          (a)  INITIAL BORROWING BASE. At the Effective Date, the Borrowing Base
     shall be $95,000,000.

          (b)  SUBSEQUENT DETERMINATIONS OF BORROWING BASE.  Subsequent
     determinations of the Borrowing Base shall be made by the Lenders at least
     semi-annually on May 1 and November 1 of each year beginning May 1, 2000 or
     as Unscheduled Redeterminations.  In connection with, and as of, each
     determination of the Borrowing Base, the Lenders shall also redetermine the
     Monthly Commitment Reduction.  The Borrowers shall furnish to the Lenders
     as soon as possible but in any event no later than April 1 of each year,
     beginning April 1, 2000, with an Engineering Report in form and substance
     satisfactory to the Agent prepared by an independent petroleum engineering
     firm or firms acceptable to Agent covering the Oil and Gas Properties
     utilizing economic and pricing parameters used by Agent as established from
     time to time, together with such other information concerning the value of
     the Oil and Gas Properties as the Agent shall deem necessary to determine
     the value of the Oil and Gas Properties.  By October 1 of each year, or
     within thirty (30) days after either (i) receipt of notice from Agent that
     the Lenders require an Unscheduled Redetermination, or (ii) the Borrowers
     give notice to Agent of its desire to have an Unscheduled Redetermination
     performed, the Borrowers shall furnish to the Lenders an engineering report
     in form and substance satisfactory to Agent prepared by Borrowers' in-house
     engineering staff valuing the Oil and Gas Properties utilizing economic and
     pricing parameters used by the Agent as established from time to time,
     together with such other information, reports and data concerning the value
     of the Oil and Gas Properties as Agent shall deem reasonably necessary to
     determine the value of such Oil and Gas Properties.  Agent shall by written
     notice to the Borrowers no later than May 1 and November 1 of each year, or
     within a reasonable time thereafter (herein called the "Determination
     Date"), notify the Borrowers of the designation by the Lenders of the new
     Borrowing Base and Monthly Commitment Reduction for the period beginning on
     such Determination Date and continuing until, but not including, the next
     Determination Date.  If an Unscheduled Redetermination is made by the
     Lenders, the Agent shall notify the Borrowers within a reasonable time
     after receipt of all requested information of the new Borrowing Base and
     Monthly Commitment Reduction, and such new Borrowing Base and Monthly
     Commitment Reduction shall continue until the next Determination Date.  If
     the Borrowers do not furnish all such

                                    -25-

<PAGE>

     information, reports and data by any date specified in this Section
     7(b), unless such failure is of no fault of the Borrowers, the
     Lenders may nonetheless designate the Borrowing Base and Monthly
     Commitment Reduction at any amounts which the Lenders in their
     reasonable discretion determine and may redesignate the Borrowing
     Base and Monthly Commitment Reduction from time to time thereafter
     until the Lenders receive all such information, reports and data,
     whereupon the Lenders shall designate a new Borrowing Base and
     Monthly Commitment Reduction as described above.  Each Lender
     shall determine the amount of the Borrowing Base and Monthly
     Commitment Reduction based upon the loan collateral value which
     such Lender in its reasonable discretion (using such methodology,
     assumptions and discounts rates as such Lender customarily uses in
     assigning collateral value to oil and gas properties, oil and gas
     gathering systems, gas processing and plant operations) assigns to
     such Oil and Gas Properties of the Borrowers at the time in
     question and based upon such other credit factors consistently
     applied (including, without limitation, the assets, liabilities,
     cash flow, business, properties, prospects, management and
     ownership of the Borrowers and their affiliates) as such Lender
     customarily considers in evaluating similar oil and gas credits,
     but such Lender in its discretion shall not be required to give
     any additional positive value to any Oil and Gas Property over the
     current economic and pricing parameters used by such Lender for
     such Determination Date which additional value is derived directly
     from a hedging, forward sale or swap agreement covering such Oil
     and Gas Property as of the date of such determination.  All
     determinations or Unscheduled Redeterminations of the Borrowing
     Base and the Monthly Commitment Reduction require the approval of
     Majority Lenders; provided, however, that notwithstanding anything
     to the contrary herein, the amount of the Borrowing Base may not
     be increased, nor may the Monthly Commitment Reduction be reduced,
     without the approval of all Lenders.  If the Lenders cannot
     otherwise agree on the Borrowing Base or the Monthly Commitment
     Reduction, the Agent shall notify each of the Lenders of such fact
     or facts and each Lender will submit within five (5) days
     thereafter its proposed Borrowing Base and Monthly Commitment
     Reduction.  The redetermined Borrowing Base and Monthly Commitment
     Reduction shall be then determined based upon the weighted
     arithmetic average of the proposed amounts submitted by each
     Lender, said proposals to be weighted according to each Lender's
     Commitment.  If at any time any of the Oil and Gas Properties are
     sold, the Borrowing Base then in effect shall automatically be
     reduced by a sum equal to the amount of prepayment required to be
     made pursuant to Section 12(r) hereof.  The Borrowing Base shall
     be additionally reduced from time to time pursuant to the
     provisions of Sections 2(e) and 2(f) hereof.  It is expressly
     understood that the Lenders have no obligation to designate the
     Borrowing Base or the Monthly Commitment Reduction at any
     particular amounts, except in the exercise of their discretion,
     whether in relation to the Commitment or otherwise. Provided,
     however, that the Lenders shall not have the obligation to
     designate a Borrowing Base in an amount in excess of the
     Commitment.

                                    -26-

<PAGE>

     8.   FEES.

          (a)  UNUSED COMMITMENT FEE.  The Borrowers shall pay to Agent for the
     ratable benefit of the Lenders an unused commitment fee (the "Unused
     Commitment Fee") equivalent to the Unused Commitment Fee Rate times the
     daily average of the unadvanced amount of the Commitment.  Such Unused
     Commitment Fee shall be calculated on the basis of a year consisting of 360
     days.  The Unused Commitment Fee shall be payable in arrears on the last
     Business Day of each calendar quarter beginning December 31, 1999 with the
     final fee payment due on the Maturity Date for any period then ending for
     which the Unused Commitment Fee shall not have been theretofore paid.  In
     the event the Commitment terminates on any date prior to the end of any
     such monthly period, the Borrowers shall pay to the Agent for the ratable
     benefit of the Lenders, on the date of such termination, the total Unused
     Commitment Fee due for the period in which such termination occurs.

          (b)  THE LETTER OF CREDIT FEE.  Borrowers shall pay to the Agent the
     Letter of Credit fees required above in Section 2(d).

          (c)  AGENCY FEES.  The Borrowers shall pay to the Agent certain fees
     for acting as Agent hereunder in amounts to be negotiated between the
     Borrowers and the Agent.

     9.   PREPAYMENTS.

          (a)  VOLUNTARY PREPAYMENTS.  Subject to the provisions of Section 5(g)
     hereof, the Borrowers may at any time and from time to time, without
     penalty or premium, prepay the Notes, in whole or in part.  Each such
     prepayment shall be made on at least three (3) Business Days' notice to
     Agent in the case of Eurodollar Loan Tranches and without notice in the
     case of Base Rate Loans and shall be in a minimum amount of (i) $500,000 or
     any whole multiple of $100,000 in excess thereof (or the unpaid balance of
     the Notes, whichever is less), for Base Rate Loans, plus accrued interest
     thereon and (ii) $1,000,000 or any whole multiple of $100,000 in excess
     thereof (or the unpaid balance on the Notes, whichever is less) for
     Eurodollar Loans, plus accrued interest thereon to the date of prepayment.

          (b)  MANDATORY PREPAYMENT FOR BORROWING BASE DEFICIENCY.  In the event
     the Total Outstandings ever exceed the Borrowing Base as determined by
     Lenders pursuant to Section 7(b) hereof, the Borrowers shall, within thirty
     (30) days after written notification from the Agent, either (A) by
     instruments reasonably satisfactory in form and substance to the Lender,
     provide the Agent with collateral with value and quality in amounts
     satisfactory to all of the Lenders in their discretion in order to increase
     the Borrowing Base by an amount at least equal to such excess, or (B)
     prepay, without premium or penalty, the principal amount of the Notes in an
     amount at least equal to such excess plus accrued interest thereon to the
     date of prepayment, or (C) prepay, without premium or penalty, the
     principal amount

                                       -27-
<PAGE>

     of such excess in five (5) equal monthly installments to
     be applied to principal plus accrued interest thereon with the first such
     monthly payment being due upon the 30th day after receipt of  notice of
     such deficiency.  If the Total Outstandings ever exceed the Commitment as a
     result of a Monthly Commitment Reduction or any other required reduction in
     the Commitment, then in such event, Borrowers shall, upon written notice,
     immediately prepay the principal amount of the Notes in an amount at least
     equal to such excess plus accrued interest to the date of prepayment.

     10.  REPRESENTATIONS AND WARRANTIES.  In order to induce the Lenders to
enter into this Agreement, the Borrowers represent and warrant to the Lenders
(which representations and warranties will survive the delivery of the Notes)
that:

          (a)  CREATION AND EXISTENCE.  Each Borrower is a corporation duly
     organized, validly existing and in good standing under the laws of the
     jurisdiction in which it was formed and is duly qualified in all
     jurisdictions wherein failure to qualify may result in a Material Adverse
     Effect.  Each Borrower has all power and authority to own its properties
     and assets and to transact the business in which it is engaged.

          (b)  POWER AND AUTHORITY.  Each Borrower is duly authorized and
     empowered to create and issue the Notes; and is duly authorized and
     empowered to execute, deliver and perform the Loan Documents, including
     this Agreement; and all corporate action on each Borrower's part requisite
     for the due creation and issuance of the Notes and for the due execution,
     delivery and performance of the Loan Documents, including this Agreement,
     has been duly and effectively taken.

          (c)  BINDING OBLIGATIONS.  This Agreement does, and the Notes and
     other Loan Documents upon their creation, issuance, execution and delivery
     will, constitute valid and binding obligations of each Borrower,
     enforceable in accordance with its respective terms (except that
     enforcement may be subject to any applicable bankruptcy, insolvency, or
     similar debtor relief laws now or hereafter in effect and relating to or
     affecting the enforcement of creditors' rights generally).

          (d)  NO LEGAL BAR OR RESULTANT LIEN.  The Notes and the Loan
     Documents, including this Agreement, do not and will not, to the best of
     each Borrower's knowledge violate any provisions of any contract,
     agreement, law, regulation, order, injunction, judgment, decree or writ to
     which any Borrower is subject, or result in the creation or imposition of
     any lien or other encumbrance upon any assets or properties of any
     Borrower, other than those contemplated by this Agreement.

          (e)  NO CONSENT.  The execution, delivery and performance by each
     Borrower of the Notes and the Loan Documents, including this Agreement,
     does not require the

                                       -28-
<PAGE>

     consent or approval of any other person or entity, including
     without limitation any regulatory authority or governmental body of
     the United States or any state thereof or any political subdivision
     of the United States or any state thereof except for consents
     required for federal, state and, in some instances, private leases,
     right of ways and other conveyances or encumbrances of oil and gas
     leases.

          (f)  FINANCIAL CONDITION.  The unaudited consolidated Financial
     Statements of Middle Bay dated June 30, 1999, which have been delivered to
     Lenders are complete and correct in all material respects, and fully and
     accurately reflect in all material respects the financial condition and
     results of the operations of the Borrowers on a consolidated basis as of
     the date or dates and for the period or periods stated subject to normal
     year-end adjustments and provided that such Financial Statements do not
     contain footnotes.  No change has since occurred in the condition,
     financial or otherwise, of any Borrower which is reasonably expected to
     have a Material Adverse Effect, except as disclosed to the Lenders in
     Schedule "2" attached hereto.

          (g)  LIABILITIES.  No Borrower has any material liability, direct or
     contingent, except as disclosed to the Lenders in the Financial Statements
     and on Schedule "3" attached hereto.  No unusual or unduly burdensome
     restrictions, restraint, or hazard exists by contract, law or governmental
     regulation or otherwise relative to the business, assets or properties of
     any Borrower which is reasonably expected to have a Material Adverse
     Effect.

          (h)  LITIGATION.  Except as described in the Financial Statements, or
     as otherwise disclosed to the Lenders in Schedule "4" attached hereto,
     there is no litigation, legal or administrative proceeding, investigation
     or other action of any nature pending or, to the knowledge of the officers
     of any of the Borrowers threatened against or affecting any of the
     Borrowers which involves the possibility of any judgment or liability not
     fully covered by insurance, and which is reasonably expected to have a
     Material Adverse Effect.

          (i)  TAXES; GOVERNMENTAL CHARGES.  Each Borrower has filed all tax
     returns and reports required to be filed and has paid all taxes,
     assessments, fees and other governmental charges levied upon it or its
     assets, properties or income which are due and payable, including interest
     and penalties, the failure of which to pay could reasonably be expected to
     have a Material Adverse Effect, except such as are being contested in good
     faith by appropriate proceedings and for which adequate reserves for the
     payment thereof as required by GAAP has been provided and levy and
     execution thereon have been stayed and continue to be stayed.

          (j)  TITLES, ETC.  Each Borrower has good and defensible title to all
     of its assets, including without limitation, the Oil and Gas Properties,
     free and clear of all liens or other encumbrances except Permitted Liens.

                                       -29-
<PAGE>

          (k)  DEFAULTS.  No Borrower is in default and no event or circumstance
     has occurred which, but for the passage of time or the giving of notice, or
     both, would constitute a default under any loan or credit agreement,
     indenture, mortgage, deed of trust, security agreement or other agreement
     or instrument to which any Borrower is a party in any respect that would be
     reasonably expected to have a Material Adverse Effect.  No Event of Default
     hereunder has occurred and is continuing.

          (l)  CASUALTIES; TAKING OF PROPERTIES.  Since the dates of the latest
     Financial Statements of the Borrowers delivered to Lenders, neither the
     business nor the assets or properties of any Borrower has been affected (to
     the extent it is reasonably likely to cause a Material Adverse Effect), as
     a result of any fire, explosion, earthquake, flood, drought, windstorm,
     accident, strike or other labor disturbance, embargo, requisition or taking
     of property or cancellation of contracts, permits or concessions by any
     domestic or foreign government or any agency thereof, riot, activities of
     armed forces or acts of God or of any public enemy.

          (m)  USE OF PROCEEDS; MARGIN STOCK.  The proceeds of the Commitment
     may be used by the Borrowers for the purposes of (i) refinance existing
     indebtedness, (ii) acquisition and development of oil and gas properties,
     (iii) Letters of Credit, (iv) working capital and (v) general corporate
     purposes including redemption of the Series C Stock made in compliance with
     the requirements of Section 13(f) hereof.  None of the Borrowers are
     engaged principally or as one of their important activities in the business
     of extending credit for the purpose of purchasing or carrying any "margin
     stock " as defined in Regulation U of the Board of Governors of the Federal
     Reserve System (12 C.F.R. Part 221), or for the purpose of reducing or
     retiring any indebtedness which was originally incurred to purchase or
     carry a margin stock or for any other purpose which might constitute this
     transaction a "purpose credit" within the meaning of said Regulation U.

          No Borrower nor any person or entity acting on behalf of the Borrowers
     has taken or will take any action which might cause the loans hereunder or
     any of the Loan Documents, including this Agreement, to violate Regulation
     U or any other regulation of the Board of Governors of the Federal Reserve
     System or to violate the Securities Exchange Act of 1934 or any rule or
     regulation thereunder, in each case as now in effect or as the same may
     hereafter be in effect.

          (n)  LOCATION OF BUSINESS AND OFFICES.  The principal place of
     business and chief executive offices of the each Borrower is located at the
     address stated in Section 17 hereof.

          (o)  COMPLIANCE WITH THE LAW.  To the best of each Borrower's
     knowledge, no Borrower:

                                       -30-
<PAGE>

               (i)    is in violation of any law, judgment, decree, order,
          ordinance, or governmental rule or regulation to which Borrower, or
          any of its assets or properties are subject; or

               (ii)   has failed to obtain any license, permit, franchise or
          other governmental authorization necessary to the ownership of any of
          its assets or properties or the conduct of its business;

     which violation or failure is reasonably expected to have a Material
     Adverse Effect.

          (p)  NO MATERIAL MISSTATEMENTS.  No information, exhibit or report
     furnished by any Borrower to the Lenders in connection with the negotiation
     of this Agreement or in the preparation of the offering memo contained any
     material misstatement of fact or omitted to state a material fact or any
     fact necessary to make the statement contained therein not materially
     misleading.

          (q)  NOT A UTILITY.  No Borrower is an entity engaged in the State of
     Texas in the (i) generation, transmission, or distribution and sale of
     electric power; (ii) transportation, distribution and sale through a local
     distribution system of natural or other gas for domestic, commercial,
     industrial, or other use; (iii) provision of telephone or telegraph service
     to others; (iv) production, transmission, or distribution and sale of steam
     or water; (v) operation of a railroad; or (vii) provision of sewer service
     to others.

          (r)  ERISA.  Each Borrower is in compliance in all material respects
     with the applicable provisions of ERISA, and no "reportable event", as such
     term is defined in Section 403 of ERISA, has occurred with respect to any
     Plan of any Borrower.

          (s)  PUBLIC UTILITY HOLDING COMPANY ACT.  No Borrower is a "holding
     company", or "subsidiary company" of a "holding company", or an "affiliate"
     of a "holding company" or of a"subsidiary company" of a "holding company",
     or a "public utility" within the meaning of the Public Utility Holding
     Company Act of 1935, as amended.

          (t)  SUBSIDIARIES.  Each of the Borrowers' Subsidiaries are listed on
     Schedule "5" hereto.

          (u)  ENVIRONMENTAL MATTERS.  Except as disclosed on Schedule "6", no
     Borrower (i) has received notice or otherwise learned of any Environmental
     Liability which would be reasonably likely to individually or in the
     aggregate have a Material Adverse Effect arising in connection with (A) any
     non-compliance with or violation of the requirements of any Environmental
     Law or (B) the release or threatened release of any toxic or hazardous
     waste into the environment, (ii) has received notice of any threatened or
     actual

                                       -31-
<PAGE>

     liability in connection with the release or notice of any threatened
     release of any toxic or hazardous waste into the environment which would be
     reasonably likely to individually or in the aggregate have a Material
     Adverse Effect or (iii) has received notice or otherwise learned of any
     federal or state investigation evaluating whether any remedial action is
     needed to respond to a release or threatened release of any toxic or
     hazardous waste into the environment for which any Borrower is or may be
     liable which may reasonably be expected to result in a Material Adverse
     Effect.

          (v)  LIENS.  Except (i) as disclosed on Schedule "1" hereto and (ii)
     for Permitted Liens, the assets and properties of the each Borrower are
     free and clear of all liens and encumbrances.

          (w)  YEAR 2000 COMPLIANCE. Each Borrower represents and warrants to
     Lenders that:

               (i)    It will use its best efforts to cause all devices,
          systems, machinery, information technology, computer software and
          hardware, and other date sensitive technology (jointly and severally
          the "Systems") necessary for each Borrower carry on its business as
          presently conducted and as contemplated to be conducted in the future
          to be Year 2000 Compliant within a period of time calculated to result
          in no material disruption of any of any Borrower's business
          operations.  For purposes of these provisions, "Year 2000 Compliant"
          means that such Systems are designed to be used prior to, during and
          after the Gregorian calendar year 2000 A.D. and will operate during
          each such time period without error relating to date data,
          specifically including any error relating to, or the product of, date
          data which represents or references different centuries or more than
          one century.

               (ii)   Each Borrower has: (A) undertaken, or will undertake, an
          inventory, review, and assessment of all areas within its business and
          operations that could be adversely affected by the failure of any
          Borrower to be Year 2000 Compliant on a timely basis; (B) developed,
          or will develop,  a plan and time line for becoming Year 2000
          Compliant on a timely basis; (C) to date, implemented, or will
          implement, that plan in accordance with that timetable in all material
          respects on a best-efforts basis.

               (iii)  Each Borrower has either made, or will make, written
          inquiry of each of its vendors, and have obtained, or will obtain, in
          writing confirmations from all such persons, as to whether such
          persons have initiated programs to become Year 2000 Compliant and on
          the basis of such confirmations.  Each Borrower reasonably believes
          that all such persons will be or become so

                                       -32-
<PAGE>

          compliant.  For purposes hereof, "vendors" refers to those
          vendors of Borrowers whose business failure would, with reasonable
          probability, result in a Material Adverse Effect on the business,
          properties, condition (financial or otherwise), or prospects of any
          Borrower.

               (iv)   The fair market value of all Collateral pledged to Lenders
          to secure the Loan and the Notes and all of Borrowers' obligations
          hereunder are not and shall not be less than currently anticipated or
          subject to deterioration in value because of the failure of such
          Collateral to be Year 2000 Compliant.

     11.  CONDITIONS OF LENDING.

          (a)  The effectiveness of this Agreement, and the obligation to make
     the initial Advance or issue any initial Letter of Credit under the
     Commitment shall be subject to satisfaction of the following conditions
     precedent:

               (i)    EXECUTION AND DELIVERY.  Each Borrower shall have executed
          and delivered the Agreement, the Notes and other required Loan
          Documents, all in form and substance satisfactory to the Agent;

               (ii)   LEGAL OPINION.  The Agent shall have received from
          Borrowers' legal counsel a favorable legal opinion in form and
          substance satisfactory to it (i) as to the matters set forth in
          Subsections 10(a), (b), (c), (d), (e) and (h) hereof and (ii) as to
          such other matters as Agent or its counsel may reasonably request;
          provided that the opinion as to 10(e) and 10(h) may be limited to
          knowledge;

               (iii)  CORPORATE RESOLUTIONS.  The Agent shall have received
          appropriate certified corporate resolutions of each Borrower;

               (iv)   GOOD STANDING.  The Agent shall have received evidence of
          existence and good standing for each Borrower;

               (v)    INCUMBENCY.  The Agent shall have received a signed
          certificate of each Borrower, certifying the names of the officers of
          each Borrower authorized to sign loan documents on behalf of each
          Borrower, together with the true signatures of each such officer.  The
          Agent may conclusively rely on such certificate until the Agent
          receives a further certificate of any Borrower canceling or amending
          the prior certificate and submitting signatures of the officers named
          in such further certificate;

               (vi)   ARTICLES OF INCORPORATION AND BYLAWS.  The Agent shall
          have

                                       -33-
<PAGE>

          received copies of the Articles of Incorporation of each Borrower
          and all amendments thereto, certified by the Secretary of State of the
          State of its incorporation, and a copy of the bylaws of each Borrower
          and all amendments thereto, certified by each Borrower as being true,
          correct and complete;

               (vii)  CLOSING OF FLOYD ACQUISITION.  The Agent shall have
          received satisfactory evidence that the Floyd Acquisition will close
          concurrently with the initial funding hereunder;

               (viii) INTERCREDITOR AGREEMENT.  The Agent, the Borrowers and the
          Subordinated Lenders shall have executed and delivered the
          Intercreditor Agreements  in form and substance satisfactory to the
          Agent;

               (ix)   CLOSING OF SECURITY PURCHASE AGREEMENTS.  The Agent shall
          have received satisfactory evidence of the closing and funding of the
          transactions described in all of the Security Purchase Agreements;

               (x)    REPRESENTATION AND WARRANTIES.  The representations and
          warranties of Borrower under this Agreement are true and correct in
          all material respects as of such date, as if then made (except to the
          extent that such representations and warranties related solely to an
          earlier date);

               (xi)   NO EVENT OF DEFAULT.  No Event of Default shall have
          occurred and be continuing nor shall any event have occurred or failed
          to occur which, with the passage of time or service of notice, or
          both, would constitute an Event of Default;

               (xii)  OTHER DOCUMENTS.  Agent shall have received such other
          instruments and documents incidental and appropriate to the
          transaction provided for herein as Agent or its counsel may reasonably
          request, and all such documents shall be in form and substance
          reasonably satisfactory to the Agent; and

               (xiii) LEGAL MATTERS SATISFACTORY.  All legal matters incident to
          the consummation of the transactions contemplated hereby shall be
          reasonably satisfactory to special counsel for Agent retained at the
          expense of the Borrower.

          (b)  The obligation of the Lenders to make any Advance or issue any
     Letter of Credit under the Commitment (including the initial Advance) shall
     be subject to the following additional conditions precedent that, at the
     date of making each such Advance and after giving effect thereto:

                                       -34-
<PAGE>

               (i)    REPRESENTATION AND WARRANTIES.  The representations and
          warranties of Borrower under this Agreement are true and correct in
          all material respects as of such date, as if then made (except to the
          extent that such representations and warranties related solely to an
          earlier date);

               (ii)   NO EVENT OF DEFAULT.  No Event of Default shall have
          occurred and be continuing nor shall any event have occurred or failed
          to occur which, with the passage of time or service of notice, or
          both, would constitute an Event of Default;

               (iii)  OTHER DOCUMENTS.  Agent shall have received such other
          instruments and documents incidental and appropriate to the
          transaction provided for herein as Agent or its counsel may reasonably
          request, and all such documents shall be in form and substance
          reasonably satisfactory to the Agent; and

               (iv)   LEGAL MATTERS SATISFACTORY.  All legal matters incident to
          the consummation of the transactions contemplated hereby shall be
          reasonably satisfactory to special counsel for Agent retained at the
          expense of Borrower.

     12.  AFFIRMATIVE COVENANTS.  A deviation from the provisions of this
Section 12 shall not constitute an Event of Default under this Agreement if such
deviation is consented to in writing by Majority Lenders prior to the date of
deviation.  The Borrowers will at all times comply with the covenants contained
in this Section 12 from the date hereof and for so long as the Commitments are
in existence or any amount is owed to the Agent or the Lenders under this
Agreement or the other Loan Documents.

          (a)  FINANCIAL STATEMENTS AND REPORTS.  Each Borrower shall promptly
     furnish to the Agent from time to time upon request such information
     regarding the business and affairs and financial condition of each
     Borrower, as the Agent may reasonably request, and will furnish to the
     Agent:

               (i)    ANNUAL AUDITED FINANCIAL STATEMENTS.  As soon as
          available, and in any event within ninety (90) days after the close of
          each fiscal year beginning with the fiscal year ended December 31,
          1999, the annual audited consolidated and consolidating Financial
          Statements of Borrowers, prepared in accordance with GAAP accompanied
          by an unqualified opinion rendered by an independent accounting firm
          reasonably acceptable to the Agent;

               (ii)   QUARTERLY FINANCIAL STATEMENTS.  As soon as available, and
          in any event within forty-five (45) days after the end of each fiscal
          quarter of each year

                                       -35-
<PAGE>

          beginning with the fiscal quarter ended December 31, 1999,
          the quarterly unaudited, consolidated and consolidating Financial
          Statements of the Borrowers prepared in accordance with GAAP;

               (iii)  REPORT ON PROPERTIES.  As soon as available and in any
          event on or before April 1 and October 1 of each calendar year, and at
          such other times as any Lender, in accordance with Section 7 hereof,
          may request, the engineering reports required to be furnished to the
          Agent under such Section 7 on the Oil and Gas Properties;

               (iv)   SEC REPORTS.  As soon as available, and in any event
          within five (5) days of filing, copies of all filings by each Borrower
          with the Securities and Exchange Commission;

               (v)    ADDITIONAL INFORMATION.  Promptly upon request of the
          Agent from time to time any additional financial information or other
          information that the Agent may reasonably request.

     All such reports, information, balance sheets and Financial Statements
     referred to in Subsection 12(a) above shall be in such detail as the Agent
     may reasonably request and shall be prepared in a manner consistent with
     the Financial Statements.

          (b)  CERTIFICATES OF COMPLIANCE.  Concurrently with the furnishing of
     the annual audited Financial Statements pursuant to Subsection 12(a)(i)
     hereof and the quarterly unaudited Financial Statements pursuant to
     Subsection 12(a)(ii) hereof for the months coinciding with the end of each
     calendar quarter, each Borrower will furnish or cause to be furnished to
     the Agent a certificate in the form of Exhibit "C" attached hereto, signed
     by the President or Chief Financial Officer of each Borrower, (i) stating
     that each Borrower has fulfilled in all material respects its obligations
     under the Notes and the Loan Documents, including this Agreement, and that
     all representations and warranties made herein and therein continue (except
     to the extent they relate solely to an earlier date) to be true and correct
     in all material respects (or specifying the nature of any change), or if a
     Default has occurred, specifying the Default and the nature and status
     thereof; (ii) to the extent requested from time to time by the Agent,
     specifically affirming compliance of each Borrower in all material respects
     with any of its representations (except to the extent they relate solely to
     an earlier date) or obligations under said instruments; (iii) setting forth
     the computation, in reasonable detail as of the end of each period covered
     by such certificate, of compliance with Sections 13(b) and (c); and (iv)
     containing or accompanied by such financial or other details, information
     and material as the Agent may reasonably request to evidence such
     compliance.

          (c)  ACCOUNTANTS' CERTIFICATE.  Concurrently with the furnishing of
     the annual

                                       -36-
<PAGE>

     audited Financial Statement pursuant to Section 12(a)(i) hereof,
     Borrowers will furnish a statement from the firm of independent public
     accountants which prepared such Financial Statement to the effect that
     nothing has come to their attention to cause them to believe that there
     existed on the date of such statements any Event of Default and
     specifically calculating Borrowers' compliance with Sections 13(b), (c) and
     (d) of this Agreement.

          (d)  TAXES AND OTHER LIENS.  Each Borrower will pay and discharge
     promptly all taxes, assessments and governmental charges or levies imposed
     upon each Borrower, or upon the income or any assets or property of any
     Borrower, as well as all claims of any kind (including claims for labor,
     materials, supplies and rent) which, if unpaid, might become a Lien or
     other encumbrance upon any or all of the assets or property of any Borrower
     and which could reasonably be expected to result in a Material Adverse
     Effect; provided, however, that such Borrower shall not be required to pay
     any such tax, assessment, charge, levy or claim if the amount,
     applicability or validity thereof shall currently be contested in good
     faith by appropriate proceedings diligently conducted, levy and execution
     thereon have been stayed and continue to be stayed and if such Borrower
     shall have set up adequate reserves therefor, if required, under GAAP.

          (e)  COMPLIANCE WITH LAWS.  Each Borrower will observe and comply, in
     all material respects, with all applicable laws, statutes, codes, acts,
     ordinances, orders, judgments, decrees, injunctions, rules, regulations,
     orders and restrictions relating to environmental standards or controls or
     to energy regulations of all federal, state, county, municipal and other
     governments, departments, commissions, boards, agencies, courts,
     authorities, officials and officers, domestic or foreign.

          (f)  FURTHER ASSURANCES.  Borrowers will cure promptly any defects in
     the creation and issuance of the Notes and the execution and delivery of
     the Notes and the Loan Documents, including this Agreement.  Borrowers at
     their sole expense will promptly execute and deliver to Agent upon its
     reasonable request all such other and further documents, agreements and
     instruments in compliance with or accomplishment of the covenants and
     agreements in this Agreement, or to correct any omissions in the Notes or
     more fully to state the obligations set out herein.

          (g)  PERFORMANCE OF OBLIGATIONS.  Borrowers will pay the Notes and
     other obligations incurred by it hereunder according to the reading, tenor
     and effect thereof and hereof; and Borrowers will do and perform every act
     and discharge all of the obligations provided to be performed and
     discharged by the Borrowers under the Loan Documents, including this
     Agreement, at the time or times and in the manner specified.

          (h)  INSURANCE.  The Borrowers now maintain and will continue to
     maintain insurance with financially sound and reputable insurers with
     respect to their respective assets

                                       -37-
<PAGE>

     against such liabilities, fires, casualties, risks and
     contingencies and in such types and amounts as is customary in the
     case of persons engaged in the same or similar businesses and
     similarly situated.  Upon request of the Agent, the Borrowers will
     furnish or cause to be furnished to the Agent from time to time a
     summary of the respective insurance coverage of Borrowers in form
     and substance satisfactory to the Agent, and, if requested, will
     furnish the Agent copies of the applicable policies.  Upon demand
     by Agent any insurance policies covering any such property shall be
     endorsed (i) to provide that such policies may not be canceled,
     reduced or affected in any manner for any reason without fifteen
     (15) days prior notice to Agent, (ii) to provide for insurance
     against fire, casualty and other hazards normally insured against,
     in the amount of the full value (less a reasonable deductible not
     to exceed amounts customary in the industry for similarly situated
     business and properties) of the property insured, and (iii) to
     provide for such other matters as the Agent may reasonably require.
     The Borrowers shall at all times maintain adequate insurance with
     respect to all of their assets, including but not limited to, the
     Oil and Gas Properties or any collateral against its liability for
     injury to persons or property, which insurance shall be by
     financially sound and reputable insurers and shall without
     limitation provide the following coverages:  comprehensive general
     liability (including coverage for damage to underground resources
     and equipment, damage caused by blowouts or cratering, damage
     caused by explosion, damage to underground minerals or resources
     caused by saline substances, broad form property damage coverage,
     broad form coverage for contractually assumed liabilities and broad
     form coverage for acts of independent contractors), worker's
     compensation and automobile liability. The Borrowers shall at all
     times maintain cost of control of well insurance with respect to
     the Oil and Gas Properties which shall insure the Borrowers against
     seepage and pollution expense; redrilling expense; and cost of
     control of well; fires, blowouts, etc., if deemed economical in the
     reasonable discretion of the Borrowers.  Additionally, the
     Borrowers shall at all times maintain adequate insurance with
     respect to all of its other assets and wells in accordance with
     prudent business practices.

          (i)  ACCOUNTS AND RECORDS.  Each Borrower will keep books, records and
     accounts in which full, true and correct entries will be made of all
     dealings or transactions in relation to its business and activities,
     prepared in a manner consistent with prior years, subject to changes
     suggested by such Borrower's auditors.

          (j)  RIGHT OF INSPECTION.  Each Borrower will permit any officer,
     employee or agent of the Lenders to examine such Borrower's books, records
     and accounts, and take copies and extracts therefrom, all at such
     reasonable times during normal business hours and as often as the Lenders
     may reasonably request.  The Lenders will use best efforts to keep all
     Confidential Information (as herein defined) confidential and will not
     disclose or reveal the Confidential Information or any part thereof other
     than (i) as required by law, and (ii) to the Lenders', and the Lenders'
     subsidiaries', Affiliates, officers, employees, legal counsel and
     regulatory authorities or advisors to whom it is necessary to reveal such
     information for the

                                       -38-
<PAGE>

     purpose of effectuating the agreements and undertakings specified
     herein or as otherwise required in connection with the enforcement
     of the Lenders' and the Agent's rights and remedies under the
     Notes, this Agreement and the other Loan Documents.  As used
     herein, "Confidential Information" means information about the
     Borrowers furnished by the Borrowers to the Lenders, but does not
     include information (i) which was publicly known, or otherwise
     known to the Lenders, at the time of the disclosure, (ii) which
     subsequently becomes publicly known through no act or omission by
     the Lenders, or (iii) which otherwise becomes known to the Lenders,
     other than through disclosure by the Borrowers.

          (k)  NOTICE OF CERTAIN EVENTS. The Borrowers shall promptly notify the
     Agent if Borrowers learn of the occurrence of (i) any event which
     constitutes an Event of  Default together with a detailed statement by
     Borrowers of the steps being taken to cure such Event of Default; (ii) any
     legal, judicial or regulatory proceedings affecting Borrowers or any of the
     assets or properties of Borrowers which, if adversely determined, could
     reasonably be expected to have a Material Adverse Effect; (iii) any dispute
     between Borrowers and any governmental or regulatory body or any other
     Person or entity which, if adversely determined, might reasonably be
     expected to cause a Material Adverse Effect; (iv) any other matter which in
     Borrowers' reasonable opinion could have a Material Adverse Effect.

          (l)  ERISA INFORMATION AND COMPLIANCE.  The Borrowers will promptly
     furnish to the Agent immediately upon becoming aware of the occurrence of
     any "reportable event", as such term is defined in Section 4043 of ERISA,
     or of any "prohibited transaction", as such term is defined in Section 4975
     of the Internal Revenue Code of 1954, as amended, in connection with any
     Plan or any trust created thereunder, a written notice signed by the chief
     financial officer of Borrowers specifying the nature thereof, what action
     Borrowers are taking or proposes to take with respect thereto, and, when
     known, any action taken by the Internal Revenue Service with respect
     thereto.

          (m)  ENVIRONMENTAL REPORTS AND NOTICES.  The Borrowers will deliver to
     the Agent (i) promptly upon its becoming available, one copy of each report
     sent by any Borrower to any court, governmental agency or
     instrumentality pursuant to any Environmental Law, (ii) notice, in
     writing, promptly upon any Borrower's receipt of notice or otherwise
     learning of any claim, demand, action, event, condition, report or
     investigation indicating any potential or actual liability arising in
     connection with (x) the non-compliance with or violation of the
     requirements of any Environmental Law which reasonably could be expected
     to have a Material Adverse Effect; (y) the release or threatened release
     of any toxic or hazardous waste into the environment which reasonably
     could be expected to have a Material Adverse Effect or which release any
     Borrower would have a duty to report to any court or government agency
     or instrumentality, or (iii) the existence of any Environmental Lien on
     any properties or assets of any Borrower, and Borrowers shall
     immediately deliver a copy of any such notice to Agent.

                                       -39-

<PAGE>

          (n)  COMPLIANCE AND MAINTENANCE.  The Borrowers will (i) observe and
     comply in all material respects with all Environmental Laws; (ii) except as
     provided in Subsections 12(o) and 12(p) below, maintain the Oil and Gas
     Properties and other assets and properties in good and workable condition
     at all times and make all repairs, replacements, additions, betterments and
     improvements to the Oil and Gas Properties and other assets and properties
     as are needed and proper so that the business carried on in connection
     therewith may be conducted properly and efficiently at all times in the
     opinion of the Borrowers exercised in good faith; (iii) take or cause to be
     taken whatever actions are necessary or desirable to prevent an event or
     condition of default by Borrowers under the provisions of any gas purchase
     or sales contract or any other contract, agreement or lease comprising a
     part of the Oil and Gas Properties or other collateral security hereunder
     which default could reasonably be expected to result in a Material Adverse
     Effect; and (iv) furnish Agent upon request evidence satisfactory to Agent
     that there are no Liens, claims or encumbrances on the Oil and Gas
     Properties, except laborers', vendors', repairmen's, mechanics', worker's,
     or materialmen's liens arising by operation of law or incident to the
     construction or improvement of property if the obligations secured thereby
     are not yet due or are being contested in good faith by appropriate legal
     proceedings or Permitted Liens.

          (o)  OPERATION OF PROPERTIES.  Except as provided in Subsection 12(p)
     and (q) below, the Borrowers will operate, or use reasonable efforts to
     cause to be operated, all Oil and Gas Properties in a careful and efficient
     manner in accordance with the practice of the industry and in compliance in
     all material respects with all applicable laws, rules, and regulations, and
     in compliance in all material respects with all applicable proration and
     conservation laws of the jurisdiction in which the properties are situated,
     and all applicable laws, rules, and regulations, of every other agency and
     authority from time to time constituted to regulate the development and
     operation of the properties and the production and sale of hydrocarbons and
     other minerals therefrom; provided, however, that the Borrowers shall have
     the right to contest in good faith by appropriate proceedings, the
     applicability or lawfulness of any such law, rule or regulation and pending
     such contest may defer compliance therewith, as long as such deferment
     shall not subject the properties or any part thereof to foreclosure or
     loss.

          (p)  COMPLIANCE WITH LEASES AND OTHER INSTRUMENTS.  The Borrowers will
     pay or cause to be paid and discharge all rentals, delay rentals,
     royalties, production payment, and indebtedness required to be paid by
     Borrowers (or required to keep unimpaired in all material respects the
     rights of Borrowers in Oil and Gas Properties) accruing under, and perform
     or cause to be performed in all material respects each and every act,
     matter, or thing required of Borrowers by each and all of the assignments,
     deeds, leases, subleases, contracts, and agreements in any way relating to
     Borrowers or any of the Oil and Gas Properties and do all other things
     necessary of Borrowers to keep unimpaired in all material respects the
     rights of Borrowers thereunder and to prevent the forfeiture thereof or
     default thereunder;


                                    -40-
<PAGE>

     provided, however, that nothing in this Agreement shall be deemed to
     require Borrowers to perpetuate or renew any oil and gas lease or other
     lease by payment of rental or delay rental or by commencement or
     continuation of operations nor to prevent Borrowers from abandoning or
     releasing any oil and gas lease or other lease or well thereon when, in
     any of such events, in the opinion of Borrowers exercised in good faith,
     it is not in the best interest of the Borrowers to perpetuate the same.

          (q)  CERTAIN ADDITIONAL ASSURANCES REGARDING MAINTENANCE AND
     OPERATIONS OF PROPERTIES.  With respect to those Oil and Gas Properties
     which are being operated by operators other than the Borrowers, the
     Borrowers shall not be obligated to perform any undertakings contemplated
     by the covenants and agreement contained in Subsections 12(o) or 12(p)
     hereof which are performable only by such operators and are beyond the
     control of the Borrowers; however, the Borrowers agree to promptly take all
     reasonable actions available under any operating agreements or otherwise to
     bring about the performance of any such material undertakings required to
     be performed thereunder.

          (r)  SALE OF CERTAIN ASSETS/PREPAYMENT OF PROCEEDS.  The Borrowers
     will immediately pay over to the Agent for the ratable benefit of the
     Lenders as a prepayment of principal on the Notes, an amount equal to 100%
     of the Release Price from the proceeds of the sale of the Oil and Gas
     Properties, which sale has been approved in advance by the Majority
     Lenders.  The term "Release Price" as used herein shall mean a price
     determined by the Majority Lenders in their discretion based upon the loan
     collateral value of the Oil and Gas Properties being sold by Borrowers
     which such Lenders in their discretion (using such methodology, assumptions
     and discounts rates as such Lenders customarily use in assigning collateral
     value to oil and gas properties, oil and gas gathering systems, gas
     processing and plant operations) assign to such Oil and Gas Properties at
     the time in question.  Any such prepayment of principal on the Notes
     required by this Section 12(r), shall not be in lieu of, but shall be in
     addition to, any Monthly Commitment Reduction or any mandatory prepayment
     of principal required to be paid pursuant to Section 9(b) hereof.

          (s)  TITLE MATTERS.  Within ninety (90) days after the Effective Date
     with respect to the Oil and Gas Properties listed on Schedule "7" hereto,
     Borrowers shall furnish Agent with title opinions and/or title information
     reasonably satisfactory to Agent showing good and defensible title of
     Borrowers to such Oil and Gas Properties subject only to the Permitted
     Liens.  As to any Oil and Gas Properties hereafter mortgaged to Agent,
     Borrowers will promptly (but in no event more than thirty (30) days
     following such mortgaging), furnish Agent with title opinions and/or title
     information reasonably satisfactory to Agent showing good and defensible
     title of Borrowers to such Oil and Gas Properties subject only to Permitted
     Liens.

          (t)  CURATIVE MATTERS.  Within sixty (60) days after the Effective
     Date with


                                    -41-
<PAGE>

     respect to matters listed on Schedule "8" and, thereafter, within
     sixty (60) days after receipt by Borrowers from Agent or its counsel of
     written notice of title defects the Agent reasonably requires to be cured,
     Borrowers shall either (i) provide such curative information, in form and
     substance satisfactory to Agent, or (ii) substitute Oil and Gas Properties
     of value and quality satisfactory to the Agent for all of Oil and Gas
     Properties for which such title curative was requested but upon which
     Borrowers elected not to provide such title curative information, and,
     within sixty (60) days of such substitution, provide title opinions or
     title information satisfactory to the Agent covering the Oil and Gas
     Properties so substituted.  If the Borrowers fail to satisfy (i) or (ii)
     above within the time specified, the loan collateral value assigned by the
     Lenders to the Oil and Gas Properties for which such curative information
     was requested shall be deducted from the Borrowing Base resulting in a
     reduction thereof.

          (u)  CHANGE OF PRINCIPAL PLACE OF BUSINESS.  Borrowers shall give
     Agent at least thirty (30) days prior written notice of its intention to
     move its principal place of business from the address set forth in
     Section 17 hereof.

          (v)  CASH COLLATERAL ACCOUNTS.  Each Borrower shall establish and
     maintain with Agent one or more operating accounts (the "Operating
     Accounts"), the maintenance of each of which shall be subject to such rules
     and regulations as Agent from time to time specify.  Such Operating
     Accounts shall be the sole operating accounts of the Borrowers.  Such
     accounts shall be maintained with the Agent until all amounts due hereunder
     and under the Notes have been paid in full.  To the extent not already so
     instructed, Borrowers shall within sixty (60) days of the Effective Date
     instruct and cause all monetary proceeds of production from the Oil and Gas
     Properties to be remitted to their respective Operating Accounts.  Such
     proceeds of production shall not be redirected without the prior written
     consent of the Agent until such time as all indebtedness due Lenders by
     Borrowers has been paid in full and the Commitments have been terminated.
     Each Borrower hereby grants a security interest to Lenders in and to their
     respective Operating Accounts (collectively, the "Cash Collateral
     Accounts") and all checks, drafts and other items ever received by any
     Lender for deposit therein.  If any Event of Default shall occur and be
     continuing, Agent shall have the immediate right, without prior notice or
     demand, to take and apply against the Borrowers' obligations hereunder any
     and all funds legally and beneficially owned by the Borrowers then or
     thereafter on deposit in the Cash Collateral Accounts for the ratable
     benefit of the Lenders.

          (w)  YEAR 2000 COMPATIBILITY.   Borrowers covenant and agree with
     Lenders that it will:

               (i)    Furnish such additional information, statements and
          other reports with respect to Borrowers' activities, course of
          action and progress


                                    -42-
<PAGE>

          towards becoming Year 2000 Compliant as Lenders may reasonably
          request from time to time;

               (ii)   In the event of any change in circumstances that
          causes or will likely cause any of Borrowers' representations and
          warranties with respect to its being or becoming Year 2000
          Compliant to no longer be true (hereinafter, referred to as a
          "Change in Circumstances") then Borrowers shall promptly, and in
          any event within ten (10) days of receipt of information
          regarding a Change in Circumstances, provide Lenders with written
          notice (the "Notice") that describes in reasonable detail the
          Change in Circumstances and how such Change in Circumstances
          caused or will likely cause Borrowers' representations and
          warranties with respect to being or becoming Year 2000 Compliant
          no longer to be true.  Borrowers shall, within ten (10) days of a
          request, also provide Lenders with any additional information
          Lenders reasonably request of Borrowers in connection with the
          Notice and/or a Change in Circumstances.

     13.  NEGATIVE COVENANTS.  A deviation from the provisions of this Section
13 shall not constitute an Event of Default under this Agreement if such
deviation is consented to in writing by Majority Lenders prior to the date of
deviation.  The Borrowers will at all times comply with the covenants contained
in this Section 13 from the date hereof and for so long as the Commitment is in
existence or any amount is owed to the Agent or the Lenders under this Agreement
or the other Loan Documents.

          (a)  NEGATIVE PLEDGE.  Borrowers shall not without the prior written
     consent of the Lenders:

               (i)    create, incur, assume or permit to exist any Lien,
          security interest or other encumbrance on any of its assets or
          properties except Permitted Liens; or

               (ii)   sell, lease, transfer or otherwise dispose of, in any
          fiscal year, any of its assets except for (A) sales, leases, transfers
          or other dispositions made in the ordinary course of Borrowers' oil
          and gas businesses, (B) sales, leases or transfers or other
          dispositions made by Borrowers between Borrowing Base Determination
          Dates which do not exceed $4,000,000 (based upon Borrowing Base values
          assigned by the Agent to such properties at the last Borrowing Base
          redetermination) in the aggregate between such Determination Dates,
          and (C) other sales, leases, transfer or other dispositions made with
          the consent of Majority Lenders which are made pursuant to, and in
          full compliance with, Section 12(r) hereof;


                                    -43-
<PAGE>

          (b)  CURRENT RATIO.  Borrowers shall not allow their ratio Current
     Ratio to be less than 1.0 to 1.0 as of the end of any fiscal quarter.

          (c)  MINIMUM INTEREST COVERAGE RATIO. The Borrowers will not allow
     their  Minimum Interest Coverage Ratio to be less than (i) 2.5 to 1.0 for
     the one quarter period ending December 31, 1999, (ii) 2.5 to 1.0 for the
     two quarter period ending March 31, 2000, (iii) 2.5 to 1.0 for the three
     quarter period ending June 30, 2000, (iv) 2.5 to 1.0 for the four quarter
     period ending September 30, 2000 and each four quarter period thereafter.

          (d)  CONSOLIDATIONS AND MERGERS.  No Borrower will consolidate or
     merge with or into any other Person, except that any Borrower may merge
     with another Person if such Borrower is the surviving entity in such merger
     and if, after giving effect thereto, no Default or Event of Default shall
     have occurred and be continuing, and except that (i) Middle Bay may merge
     with 3TEC Energy Corporation, a Delaware corporation in a transaction
     described in the Middle Bay Definitive Proxy Statement as filed with the
     Securities and Exchange Commission on October 25, 1999 ("Proxy Statement")
     and (ii) Enex and Production may merge into Middle Bay.

          (e)  DEBTS, GUARANTIES AND OTHER OBLIGATIONS.  Without the consent of
     Majority Lenders, no Borrower will incur, create, assume or in any manner
     become or be liable in respect of any indebtedness, nor will any Borrower
     guarantee or otherwise in any manner become or be liable in respect of any
     indebtedness, liabilities or other obligations of any other person or
     entity, whether by agreement to purchase the indebtedness of any other
     person or entity or agreement for the furnishing of funds to any other
     person or entity through the purchase or lease of goods, supplies or
     services (or by way of stock purchase, capital contribution, advance or
     loan) for the purpose of paying or discharging the indebtedness of any
     other person or entity, or otherwise, except that the foregoing
     restrictions shall not apply to:

               (i)    the Notes and any renewal or increase thereof, or other
          indebtedness of the Borrowers heretofore disclosed to Lenders in the
          Borrower's Financial Statements or on Schedule "4" hereto; or

               (ii)   taxes, assessments or other government charges which are
          not yet due or are being contested in good faith by appropriate action
          promptly initiated and diligently conducted, if such reserve as shall
          be required by GAAP shall have been made therefor and levy and
          execution thereon have been stayed and continue to be stayed; or

               (iii)  indebtedness (other than in connection with a loan or
          lending transaction) incurred in the ordinary course of business,
          including, but not limited


                                    -44-
<PAGE>

          to indebtedness for drilling, completing, leasing and reworking oil
          and gas wells; or

               (iv)   indebtedness evidenced by the Subordinated Notes; or

               (v)    any renewals or extensions of (but not increases in) any
          of the foregoing.

          (f)  DIVIDENDS.  No Borrower will declare or pay any cash dividend,
     purchase, redeem or otherwise acquire for value any of its stock now or
     hereafter outstanding, return any capital to its stockholders, or make any
     distribution of its assets to its stockholders as such, except the
     foregoing shall not apply to (i) dividends on the Series C Preferred Stock
     and (ii) the redemption of the Series C Preferred Stock but such redemption
     shall be allowed only if (x) such redemption is made prior to May 1, 2000,
     (y) the Floyd Equity Transaction has occurred and (z) at least $5,000,000
     of availability exists under the Commitment immediately after such
     redemption; provided, however, that immediately before and after giving
     effect thereto no (i) Default or Event of Default or (ii) Borrowing Base
     deficiency or requirement to make any mandatory prepayment of principal
     pursuant to Section 9(b) hereof, shall exist.

          (g)  LOANS AND ADVANCES.  Borrowers shall not make or permit to remain
     outstanding any loans or advances to or in any person or entity, except
     that the foregoing restriction shall not apply to:

               (i)    loans or advances to any person, the material details of
          which have been set forth in the Financial Statements of the Borrowers
          heretofore furnished to Lenders; or

               (ii)   advances made in the ordinary course of Borrowers' oil and
          gas business; or

               (iii)  loans or advances to Affiliates and non-related third
          parties not exceeding $100,000 in the aggregate during the existence
          of the Commitment.

          (h)  SALE OR DISCOUNT OF RECEIVABLES.  Borrowers will not discount or
     sell with recourse, or sell for less than the greater of the face or market
     value thereof, any of their notes receivable or accounts receivable.

          (i)  NATURE OF BUSINESS.  Borrowers will not permit any material
     change to be made in the character of their respective businesses as
     carried on at the date hereof.


                                    -45-
<PAGE>

          (j)  TRANSACTIONS WITH AFFILIATES.  Borrowers will not enter into any
     transaction with any Affiliate, except transactions upon terms that are no
     less favorable to it than would be obtained in a transaction negotiated at
     arm's length with an unrelated third party.

          (k)  HEDGING TRANSACTIONS. Borrowers will not enter into any Rate
     Management Transactions, except the foregoing prohibitions shall not apply
     to (x) transactions consented to in writing by the Majority Lenders which
     are on terms acceptable to the Majority Lenders, or (y) Pre-Approved
     Contracts.

          (l)  INVESTMENTS.  Borrowers shall not make any investments in any
     person or entity, except such restriction shall not apply to:

               (i)    investments and direct obligations of the United
          States of America or any agency thereof;

               (ii)   investments in certificates of deposit issued by the
          Lenders or certificates of deposit with maturities of less than
          one year, issued by other commercial banks in the United States
          having capital and surplus in excess of $500,000,000 and which
          have a rating of (A) 50 or above by Sheshunoff and (B) "B" or
          above by Keef-Bruett; or

               (iii)  investments in insured money market funds, Eurodollar
          investment accounts and other similar accounts at Agent or such
          investment with maturities of less than ninety (90) days at other
          commercial banks having capital and surplus in excess of
          $500,000,000 and which have a rating of (A) 50 or above by
          Sheshunoff and (B) "B" or above by Keef-Bruett.

          (m)  AMENDMENT TO ARTICLES OF INCORPORATION OR BYLAWS.  Borrowers will
     not  permit any material amendment to, or any alteration of, its Articles
     of Incorporation or Bylaws except such amendments or alterations as may be
     contemplated by the Proxy Statement.

          (n)  PROCEEDS OF PRODUCTION.  Borrowers shall not redirect the payment
     of the proceeds of production from the Oil and Gas Properties to anyone or
     any place other than to the Operating Accounts at the Agent.

          (o)  ISSUANCE OF  PREFERRED STOCK.  Borrowers shall not issue any
     additional preferred stock after the Effective Date without the consent of
     Majority Lenders.

          (p)  AMENDMENTS TO AND REDEMPTION OF PREFERRED STOCK OR OTHER EQUITY.


                                    -46-
<PAGE>

     Borrowers shall not  (i) amend any outstanding equity issue after the
     Effective Date without the consent of Majority Lenders, or (ii) redeem any
     preferred stock (other than the Series C Preferred Stock which may be
     redeemed pursuant to Section 13(f)) without the consent of Majority
     Lenders.

          (q)  PAYMENT OR PRE-PAYMENT OF OTHER INDEBTEDNESS.  Except as
     otherwise provided for in this Agreement, Borrowers shall not make any
     unscheduled payments on or redeem any of its indebtedness (other than
     indebtedness owed the Lenders hereunder) or purchase or redeem any of their
     equity unless such payment, pre-payment or redemption is approved by
     Majority Lenders.

          (r)  SUBORDINATED INDEBTEDNESS.  Borrowers shall not fail in any
     respect to comply with all of the provisions of the Intercreditor
     Agreements or the subordination provisions of the Security Purchase
     Agreements and shall not make any payments on the Subordinated Notes in
     violation of the provisions thereof.  Middle Bay shall not amend in any
     respect the provisions of the Subordinated Notes or the Security Purchase
     Agreements, except as permitted by the provisions of the Intercreditor
     Agreements or any of the Security Purchase Agreements.

     14.  EVENTS OF DEFAULT.  Any one or more of the following events shall be
considered an "Event of Default" as that term is used herein:

          (a)  The Borrowers shall fail to pay when due or declared due the
     principal of, and the interest on, the Notes, or any fee or any other
     indebtedness of the Borrowers incurred pursuant to this Agreement or any
     other Loan Document; or

          (b)  Any representation or warranty made by Borrowers under this
     Agreement, or in any certificate or statement furnished or made to the
     Lenders pursuant hereto, or in connection herewith, or in connection with
     any document furnished hereunder, shall prove to be untrue in any material
     respect as of the date on which such representation or warranty is made (or
     deemed made), or any representation, statement (including financial
     statements), certificate, report or other data furnished or to be furnished
     or made by Borrowers under any Loan Document, including this Agreement,
     proves to have been untrue in any material respect, as of the date as of
     which the facts therein set forth were stated or certified; or

          (c)  Default shall be made in the due observance or performance of any
     of the covenants or agreements of the Borrowers contained in the Loan
     Documents, including this Agreement (excluding covenants contained in
     Section 13 of the Agreement for which there is no cure period), and such
     default shall continue for more than thirty (30) days after written notice
     is received by Borrowers; or


                                    -47-
<PAGE>

          (d)  Default shall be made in the due observance or performance of the
     covenants of Borrowers contained in Section 13 of this Agreement; or

          (e)  Default shall be made in respect of any obligation for borrowed
     money, other than the Notes, for which Borrowers are liable (directly, by
     assumption, as guarantor or otherwise), or any obligations secured by any
     mortgage, pledge or other security interest, lien, charge or encumbrance
     with respect thereto, on any asset or property of any Borrower or in
     respect of any agreement relating to any such obligations unless such
     Borrower is not liable for same (i.e., unless remedies or recourse for
     failure to pay such obligations is limited to foreclosure of the collateral
     security therefor), and if such default shall continue beyond the
     applicable grace period, if any; or

          (f)  Borrowers shall commence a voluntary case or other proceeding
     seeking liquidation, reorganization or other relief with respect to itself
     or its debts under any bankruptcy, insolvency or other similar law now or
     hereafter in effect or seeking an appointment of a trustee, receiver,
     liquidator, custodian or other similar official of it or any substantial
     part of their property, or shall consent to any such relief or to the
     appointment of or taking possession by any such official in an involuntary
     case or other proceeding commenced against them, or shall make a general
     assignment for the benefit of creditors, or shall fail generally to pay
     their debts as they become due, or shall take any corporate action
     authorizing the foregoing; or

          (g)  An involuntary case or other proceeding, shall be commenced
     against Borrowers seeking liquidation, reorganization or other relief with
     respect to them or their debts under any bankruptcy, insolvency or similar
     law now or hereafter in effect or seeking the appointment of a trustee,
     receiver, liquidator, custodian or other similar official of it or any
     substantial part of its property, and such involuntary case or other
     proceeding shall remain undismissed and unstayed for a period of sixty (60)
     days; or an order for relief shall be entered against Borrowers under the
     federal bankruptcy laws as now or hereinafter in effect; or

          (h)  A final judgment or order for the payment of money in excess of
     $1,000,000 (or judgments or orders aggregating in excess of $1,000,000)
     shall be rendered against Borrowers and such judgments or orders shall
     continue unsatisfied and unstayed for a period of thirty (30) days; or

          (i)  In the event the Total Outstandings shall at any time exceed the
     Borrowing Base established for the Notes, and the Borrowers shall fail to
     comply with the provisions of Section 9(b) hereof; or

          (j)  A Change of Control shall occur; or


                                    -48-
<PAGE>

          (k)  A Change of Management shall occur.

     Upon occurrence of any Event of Default specified in Subsections 14(f) and
(g) hereof, the entire principal amount due under the Notes and all interest
then accrued thereon, and any other liabilities of the Borrowers hereunder,
shall become immediately due and payable all without notice and without
presentment, demand, protest, notice of protest or dishonor or any other notice
of default of any kind, all of which are hereby expressly waived by the
Borrowers.  In any other Event of Default, the Agent, upon request of Majority
Lenders, shall by written notice to the Borrowers declare the principal of, and
all interest then accrued on, the Notes and any other liabilities hereunder to
be forthwith due and payable, whereupon the same shall forthwith become due and
payable without presentment, demand, protest, notice of intent to accelerate,
notice of acceleration or other notice of any kind, all of which the Borrowers
hereby expressly waive, anything contained herein or in the Note to the contrary
notwithstanding.  Nothing contained in this Section 14 shall be construed to
limit or amend in any way the Events of Default enumerated in the Note, or any
other document executed in connection with the transaction contemplated herein.

     Upon the occurrence and during the continuance of any Event of Default, the
Lenders are hereby authorized at any time and from time to time, without notice
to the Borrowers (any such notice being expressly waived by the Borrowers), to
set-off and apply any and all deposits (general or special, time or demand,
provisional or final) at any time held and other indebtedness at any time owing
by any of the Lenders to or for the credit or the account of the Borrowers
against any and all of the indebtedness of the Borrowers under the Notes and the
Loan Documents, including this Agreement, irrespective of whether or not the
Lenders shall have made any demand under the Loan Documents, including this
Agreement or the Notes and although such indebtedness may be unmatured.  Any
amount set-off by any of the Lenders shall be applied against the indebtedness
owed the Lenders by the Borrowers pursuant to this Agreement and the Notes.  The
Lenders agree promptly to notify the Borrowers after any such setoff and
application, provided that the failure to give such notice shall not affect the
validity of such set-off and application.  The rights of the Lender under this
Section are in addition to other rights and remedies (including, without
limitation, other rights of set-off) which the Lenders may have.

     15.  THE AGENT AND THE LENDERS.

          (a)  APPOINTMENT AND AUTHORIZATION.  Each Lender hereby appoints Agent
     as its nominee and agent, in its name and on its behalf: (i) to act as
     nominee for and on behalf of such Lender in and under all Loan Documents;
     (ii) to arrange the means whereby the funds of Lenders are to be made
     available to the Borrowers under the Loan Documents; (iii) to take such
     action as may be requested by any Lender under the Loan Documents (when
     such Lender is entitled to make such request under the Loan Documents);
     (iv) to receive all


                                    -49-
<PAGE>

     documents and items to be furnished to Lenders under the Loan Documents;
     (v) to be the secured party, mortgagee, beneficiary, and similar party
     in respect of, and to receive, as the case may be, any collateral for
     the benefit of Lenders; (vi) to promptly distribute to each Lender all
     material information, requests, documents and items received from the
     Borrowers under the Loan Documents; (vii) to promptly distribute to each
     Lender such Lender's Pro Rata Part of each payment or prepayment
     (whether voluntary, as proceeds of insurance thereon, or otherwise) in
     accordance with the terms of the Loan Documents and (viii) to deliver to
     the appropriate Persons requests, demands, approvals and consents
     received from Lenders.  Each Lender hereby authorizes Agent to take all
     actions and to exercise such powers under the Loan Documents as are
     specifically delegated to Agent by the terms hereof or thereof, together
     with all other powers reasonably incidental thereto.  With respect to
     its commitments hereunder and the Notes issued to it, Agent and any
     successor Agent shall have the same rights under the Loan Documents as
     any other Lender and may exercise the same as though it were not the
     Agent; and the term "Lender" or "Lenders" shall, unless otherwise
     expressly indicated, include Agent and any successor Agent in its
     capacity as a Lender.  Agent and any successor Agent and its Affiliates
     may accept deposits from, lend money to, act as trustee under indentures
     of and generally engage in any kind of business with the Borrowers, and
     any person which may do business with the Borrowers, all as if Agent and
     any successor Agent was not Agent hereunder and without any duty to
     account therefor to the Lenders; provided that, if any payments in
     respect of any property (or the proceeds thereof) now or hereafter in
     the possession or control of Agent which may be or become security for
     the obligations of the Borrowers arising under the Loan Documents by
     reason of the general description of indebtedness secured or of property
     contained in any other agreements, documents or instruments related to
     any such other business shall be applied to reduction of the obligations
     of the Borrowers arising under the Loan Documents, then each Lender
     shall be entitled to share in such application according to its pro rata
     part thereof.  Each Lender, upon request of any other Lender, shall
     disclose to all other Lenders all indebtedness and liabilities, direct
     and contingent, of the Borrowers to such Lender as of the time of such
     request.

          (b)  NOTE HOLDERS.  From time to time as other Lenders become a party
     to this Agreement, Agent shall obtain execution by the Borrowers of
     additional Notes in amounts representing the Commitment of each such new
     Lender, up to an aggregate face amount of all Notes not exceeding
     $250,000,000.  The obligation of such Lender shall be governed by the
     provisions of this Agreement, including but not limited to, the obligations
     specified in Section 2 hereof.  From time to time, Agent may require that
     the Lenders exchange their Notes for newly issued Notes to better reflect
     the Commitments of the Lenders.  Agent may treat the payee of any Note as
     the holder thereof until written notice of transfer has been filed with it,
     signed by such payee and in form satisfactory to Agent.

          (c)  CONSULTATION WITH COUNSEL.  Lenders agree that Agent may consult
     with


                                    -50-
<PAGE>

     legal counsel selected by Agent and shall not be liable for any action
     taken or suffered in good faith by it in accordance with the advice of such
     counsel.  LENDERS ACKNOWLEDGE THAT GARDERE & WYNNE, L.L.P. IS COUNSEL FOR
     BANK ONE, BOTH AS AGENT AND AS A LENDER, AND THAT SUCH FIRM DOES NOT
     REPRESENT ANY OF THE OTHER LENDERS IN CONNECTION WITH THIS TRANSACTION.

          (d)  DOCUMENTS.  Agent shall not be under a duty to examine or pass
     upon the validity, effectiveness, enforceability, genuineness or value of
     any of the Loan Documents or any other instrument or document furnished
     pursuant thereto or in connection therewith, and Agent shall be entitled to
     assume that the same are valid, effective, enforceable and genuine and what
     they purport to be.

          (e)  RESIGNATION OR REMOVAL OF AGENT.  Subject to the appointment and
     acceptance of a successor Agent as provided below, Agent may resign at any
     time by giving written notice thereof to Lenders and the Borrowers, and
     Agent may be removed at any time with or without cause by all Lenders.  If
     no successor Agent has been so appointed by all Lenders (and approved by
     the Borrowers) and has accepted such appointment within 30 days after the
     retiring Agent's giving of notice of resignation or removal of the retiring
     Agent, then the retiring Agent may, on behalf of Lenders, appoint a
     successor Agent.  Any successor Agent must be approved by Borrowers, which
     approval will not be unreasonably withheld.  Upon the acceptance of any
     appointment as Agent hereunder by a successor Agent, such successor Agent
     shall thereupon succeed to and become vested with all the rights and duties
     of the retiring Agent, and the retiring Agent, as the case may be, shall be
     discharged from its duties and obligations hereunder.  After any retiring
     Agent's resignation or removal hereunder as Agent, the provisions of this
     Section 15 shall continue in effect for its benefit in respect to any
     actions taken or omitted to be taken by it while it was acting as Agent.
     To be eligible to be an Agent hereunder the party serving, or to serve, in
     such capacity must own a Pro Rata Part of the Commitments equal to the
     level of Commitment required to be held by any Lender pursuant to
     Section 28 hereof.

          (f)  RESPONSIBILITY OF AGENT.  It is expressly understood and agreed
     that the obligations of Agent under the Loan Documents are only those
     expressly set forth in the Loan Documents as to each and that Agent, shall
     be entitled to assume that no Default or Event of Default has occurred and
     is continuing, unless Agent has actual knowledge of such fact or has
     received notice from a Lender or the Borrowers that such Lender or the
     Borrowers considers that a Default or an Event of Default has occurred and
     is continuing and specifying the nature thereof.  Neither Agent nor any of
     its directors, officers, attorneys or employees shall be liable for any
     action taken or omitted to be taken by them under or in connection with the
     Loan Documents, except for its or their own gross negligence or willful
     misconduct.  Agent shall not incur liability under or in respect of any of
     the Loan Documents by acting upon any notice, consent, certificate,
     warranty or other paper or instrument


                                    -51-
<PAGE>

     believed by it to be genuine or authentic or to be signed by the proper
     party or parties, or with respect to anything which it may do or refrain
     from doing in the reasonable exercise of its judgment, or which may seem
     to it to be necessary or desirable.

          Agent shall not be responsible to Lenders for any of the Borrowers'
     recitals, statements, representations or warranties contained in any of the
     Loan Documents, or in any certificate or other document referred to or
     provided for in, or received by any Lender under, the Loan Documents, or
     for the value, validity, effectiveness, genuineness, enforceability or
     sufficiency of or any of the Loan Documents or for any failure by the
     Borrowers to perform any of its obligations hereunder or thereunder.  Agent
     may employ agents and attorneys-in-fact and shall not be answerable, except
     as to money or securities received by it or its authorized agents, for the
     negligence or misconduct of any such agents or attorneys-in-fact selected
     by it with reasonable care.

          The relationship between Agent and each Lender is only that of agent
     and principal and has no fiduciary aspects.  Nothing in the Loan Documents
     or elsewhere shall be construed to impose on Agent any duties or
     responsibilities other than those for which express provision is therein
     made.  In performing its duties and functions hereunder, Agent does not
     assume and shall not be deemed to have assumed, and hereby expressly
     disclaims, any obligation or responsibility toward or any relationship of
     agency or trust with or for the Borrowers or any of their beneficiaries or
     other creditors.  As to any matters not expressly provided for by the Loan
     Documents, Agent shall not be required to exercise any discretion or take
     any action, but shall be required to act or to refrain from acting (and
     shall be fully protected in so acting or refraining from acting) upon the
     instructions of all Lenders and such instructions shall be binding upon all
     Lenders and all holders of the Notes; provided, however, that Agent shall
     not be required to take any action which is contrary to the Loan Documents
     or applicable law.

          Agent shall have the right to exercise or refrain from exercising,
     without notice or liability to the Lenders, any and all rights afforded to
     Agent by the Loan Documents or which Agent may have as a matter of law;
     provided, however, Agent shall not (i) except as provided herein and in
     Section 7(b) hereof, without the consent of Majority Lenders designate the
     amount of the Borrowing Base or the Monthly Commitment Reduction or (ii)
     take any other action with regard to amending the Loan Documents, waiving
     any default under the Loan Documents or taking any other action with
     respect to the Loan Documents.  Provided further, however, that no
     amendment, waiver, or other action shall be effected pursuant to the
     preceding clause (ii) without the consent of all Lenders which: (i) would
     increase the Borrowing Base or decrease the Monthly Commitment Reduction,
     (ii) would reduce any fees hereunder, or the principal of, or the interest
     on, any Lender's Note or Notes, (iii) would postpone any date fixed for any
     payment of any fees hereunder, or any principal or interest of any Lender's
     Note or Notes, (iv) would materially increase any Lender's


                                    -52-
<PAGE>

     obligations hereunder or would materially alter Agent's obligations to
     any Lender hereunder, (v) would release Borrowers from their obligation
     to pay any Lender's Note or Notes, (vi) release any of the Collateral
     except as permitted by Sections 12(r) and 13(a)(ii) hereof, (vii) would
     change the definition of Majority Lenders, (viii) would amend, modify or
     change any provision of this Agreement requiring the consent of all the
     Lenders, (ix) would waive any of the conditions precedent to the
     Effective Date or the making of any Loan or issuance of any Letter of
     Credit or (x) would extend the Maturity Date or (xi) would amend this
     sentence or the previous sentence.  Agent shall not have liability to
     Lenders for failure or delay in exercising any right or power possessed
     by Agent pursuant to the Loan Documents or otherwise unless such failure
     or delay is caused by the gross negligence of the Agent, in which case
     only the Agent responsible for such gross negligence shall have
     liability therefor to the Lenders.

          (g)  INDEPENDENT INVESTIGATION.  Each Lender severally represents and
     warrants to Agent that it has made its own independent investigation and
     assessment of the financial condition and affairs of the Borrowers in
     connection with the making and continuation of its participation hereunder
     and has not relied exclusively on any information provided to such Lender
     by Agent in connection herewith, and each Lender represents, warrants and
     undertakes to Agent that it shall continue to make its own independent
     appraisal of the credit worthiness of the Borrowers while the Notes are
     outstanding or its commitments hereunder are in force.  Agent shall not be
     required to keep itself informed as to the performance or observance by the
     Borrowers of this Agreement or any other document referred to or provided
     for herein or to inspect the properties or books of the Borrowers.  Other
     than as provided in this Agreement, Agent shall not have any duty,
     responsibility or liability to provide any Lender with any credit or other
     information concerning the affairs, financial condition or business of the
     Borrowers which may come into the possession of Agent.

          (h)  INDEMNIFICATION. Lenders agree to indemnify Agent, ratably
     according to their respective Commitments on a Pro Rata basis, from and
     against any and all liabilities, obligations, losses, damages, penalties,
     actions, judgments, suits, costs, expenses or disbursements of any proper
     and reasonable kind or nature whatsoever which may be imposed on, incurred
     by or asserted against Agent in any way relating to or arising out of the
     Loan Documents or any action taken or omitted by Agent under the Loan
     Documents, provided that no Lender shall be liable for any portion of such
     liabilities, obligations, losses, damages, penalties, actions, judgments,
     suits, costs, expenses or disbursements resulting from Agent's gross
     negligence or willful misconduct.  Each Lender shall be entitled to be
     reimbursed by the Agent for any amount such Lender paid to Agent under this
     Section 15(h) to the extent the Agent has been reimbursed for such payments
     by the Borrowers or any other Person.  THE PARTIES INTEND FOR THE
     PROVISIONS OF THIS SECTION TO APPLY TO AND PROTECT THE AGENT FROM THE
     CONSEQUENCES OF ANY LIABILITY INCLUDING STRICT LIABILITY IMPOSED OR
     THREATENED TO BE IMPOSED ON AGENT AS WELL AS FROM THE CONSEQUENCES OF ITS


                                    -53-
<PAGE>

     OWN NEGLIGENCE, WHETHER OR NOT THAT NEGLIGENCE IS THE SOLE, CONTRIBUTING OR
     CONCURRING CAUSE OF ANY SUCH LIABILITY.

          (i)  BENEFIT OF SECTION 15.  The agreements contained in this
     Section 15 are solely for the benefit of Agent and the Lenders and are not
     for the benefit of, or to be relied upon by, the Borrowers, any affiliate
     of the Borrowers or any other person.

          (j)  PRO RATA TREATMENT.  Subject to the provisions of this Agreement,
     each payment (including each prepayment) by the Borrowers and collection by
     Lenders (including offsets) on account of the principal of and interest on
     the Notes and fees provided for in this Agreement, payable by the Borrowers
     shall be made Pro Rata; provided, however, in the event that any Defaulting
     Lender shall have failed to make an Advance as contemplated under Section 3
     hereof and Agent or another Lender or Lenders shall have made such Advance,
     payment received by Agent for the account of such Defaulting Lender or
     Lenders shall not be distributed to such Defaulting Lender or Lenders until
     such Advance or Advances shall have been repaid in full to the Lender or
     Lenders who funded such Advance or Advances.

          (k)  ASSUMPTION AS TO PAYMENTS.  Except as specifically provided
     herein, unless Agent shall have received notice from the Borrowers prior to
     the date on which any payment is due to Lenders hereunder that the
     Borrowers will not make such payment in full, Agent may, but shall not be
     required to, assume that the Borrowers have made such payment in full to
     Agent on such date and Agent may, in reliance upon such assumption, cause
     to be distributed to each Lender on such due date an amount equal to the
     amount then due such Lender.  If and to the extent the Borrowers shall not
     have so made such payment in full to Agent, each Lender shall repay to
     Agent forthwith on demand such amount distributed to such Lender together
     with interest thereon, for each day from the date such amount is
     distributed to such Lender until the date such Lender repays such amount to
     Agent, at the interest rate applicable to such portion of the Loan.

          (l)  OTHER FINANCINGS.  Without limiting the rights to which any
     Lender otherwise is or may become entitled, such Lender shall have no
     interest, by virtue of this Agreement or the Loan Documents, in (a) any
     present or future loans from, letters of credit issued by, or leasing or
     other financial transactions by, any other Lender to, on behalf of, or with
     the Borrowers (collectively referred to herein as "Other Financings") other
     than the obligations hereunder; (b) any present or future guarantees by or
     for the account of the Borrowers which are not contemplated by the Loan
     Documents; (c) any present or future property taken as security for any
     such Other Financings; or (d) any property now or hereafter in the
     possession or control of any other Lender which may be or become security
     for the obligations of the Borrowers arising under any loan document by
     reason of the general description of indebtedness secured or property
     contained in any other agreements,


                                    -54-
<PAGE>

     documents or instruments relating to any such Other Financings.

          (m)  INTERESTS OF LENDERS.  Nothing in this Agreement shall be
     construed to create a partnership or joint venture between Lenders for any
     purpose.  Agent, Lenders and the Borrowers recognize that the respective
     obligations of Lenders under the Commitments shall be several and not joint
     and that neither Agent nor any of Lenders shall be responsible or liable to
     perform any of the obligations of the other under this Agreement.  Each
     Lender is deemed to be the owner of an undivided interest in and to all
     rights, titles, benefits and interests belonging and accruing to Agent
     under the Security Instruments, including, without limitation, liens and
     security interests in any collateral, fees and payments of principal and
     interest by the Borrowers under the Commitments on a Pro Rata basis.  Each
     Lender shall perform all duties and obligations of Lenders under this
     Agreement in the same proportion as its ownership interest in the Loans
     outstanding at the date of determination thereof.

          (n)  INVESTMENTS.  Whenever Agent in good faith determines that it is
     uncertain about how to distribute to Lenders any funds which it has
     received, or whenever Agent in good faith determines that there is any
     dispute among the Lenders about how such funds should be distributed, Agent
     may choose to defer distribution of the funds which are the subject of such
     uncertainty or dispute.  If Agent in good faith believes that the
     uncertainty or dispute will not be promptly resolved, or if Agent is
     otherwise required to invest funds pending distribution to the Lenders,
     Agent may invest such funds pending distribution (at the risk of the
     Borrowers).  All interest on any such investment shall be distributed upon
     the distribution of such investment and in the same proportions and to the
     same Persons as such investment.  All monies received by Agent for
     distribution to the Lenders (other than to the Person who is Agent in its
     separate capacity as a Lender) shall be held by the Agent pending such
     distribution solely as Agent for such Lenders, and Agent shall have no
     equitable title to any portion thereof.

     16.  EXERCISE OF RIGHTS.  No failure to exercise, and no delay in
exercising, on the part of the Agent or the Lenders, any right hereunder shall
operate as a waiver thereof, nor shall any single or partial exercise thereof
preclude any other or further exercise thereof or the exercise of any other
right.  The rights of the Agent and the Lenders hereunder shall be in addition
to all other rights provided by law.  No modification or waiver of any provision
of the Loan Documents, including this Agreement, or the Note nor consent to
departure therefrom, shall be effective unless in writing, and no such consent
or waiver shall extend beyond the particular case and purpose involved.  No
notice or demand given in any case shall constitute a waiver of the right to
take other action in the same, similar or other circumstances without such
notice or demand.

     17.  NOTICES.  Any notices or other communications required or permitted to
be given by this Agreement or any other documents and instruments referred to
herein must be given in


                                    -55-
<PAGE>

writing (which may be by facsimile transmission) and must be personally
delivered or mailed by prepaid certified or registered mail to the party to
whom such notice or communication is directed at the address of such party as
follows:  (a) BORROWERS: c/o MIDDLE BAY OIL COMPANY, INC., 5910 N. Central
Expressway, Suite 1150, Dallas, Texas 75206, Attn: Floyd C. Wilson, President
and Chief Executive Officer, Facsimile (214) 523-7965;  (b) AGENT: BANK ONE,
TEXAS, N.A., 1717 Main Street, Dallas, Texas 75201, Facsimile No. (214)
290-2332, Attention: Mynan C. Feldman, First Vice President.  Any such notice
or other communication shall be deemed to have been given (whether actually
received or not) on the day it is personally delivered or delivered by
facsimile as aforesaid or, if mailed, on the third day after it is mailed as
aforesaid.  Any party may change its address for purposes of this Agreement
by giving notice of such change to the other party pursuant to this Section
17. Any notice required to be given to the Lenders shall be given to the
Agent and distributed to all Lenders by the Agent.

     18.  EXPENSES.  The Borrowers shall pay (i) all reasonable and necessary
out-of-pocket expenses of the Lenders, including reasonable fees and
disbursements of special counsel for the Agent, in connection with the
preparation of this Agreement, any waiver or consent hereunder or any amendment
hereof or any default or Event of Default or alleged default or Event of Default
hereunder, (ii) all reasonable and necessary out-of-pocket expenses of the
Agent, including reasonable fees and disbursements of special counsel for the
Agent in connection with the preparation of any participation agreement for a
participant or participants requested by the Borrowers or any amendment thereof
and (iii) if a default or an Event of Default occurs, all reasonable and
necessary out-of-pocket expenses incurred by the Lenders, including fees and
disbursements of counsel, in connection with such default and Event of Default
and collection and other enforcement proceedings resulting therefrom.  THE
BORROWERS HEREBY ACKNOWLEDGE THAT GARDERE & WYNNE, L.L.P. IS SPECIAL COUNSEL TO
BANK ONE, AS AGENT AND AS A LENDER, UNDER THIS AGREEMENT AND THAT IT IS NOT
COUNSEL TO, NOR DOES IT REPRESENT THE BORROWERS IN CONNECTION WITH THE
TRANSACTIONS DESCRIBED IN THIS AGREEMENT.  The Borrowers are relying on separate
counsel in the transaction described herein.  The Borrowers shall indemnify the
Lenders against any transfer taxes, document taxes, assessments or charges made
by any governmental authority by reason of the execution, delivery and filing of
the Loan Documents.  The obligations of this Section 18 shall survive any
termination of this Agreement, the expiration of the Loans and the payment of
all indebtedness of the Borrowers to the Lenders hereunder and under the Notes.

     19.  INDEMNITY.  The Borrowers agree to indemnify and hold harmless the
Lenders and their respective officers, employees, agents, attorneys and
representatives (singularly, an "Indemnified Party", and collectively, the
"Indemnified Parties") from and against any loss, cost, liability, damage or
expense (including the reasonable fees and out-of-pocket expenses of counsel to
the Lenders, including all local counsel hired by such counsel) ("Claim")
incurred by the Lenders in investigating or preparing for, defending against, or
providing evidence,


                                    -56-
<PAGE>

producing documents or taking any other action in respect of any commenced or
threatened litigation, administrative proceeding or investigation under any
federal securities law, federal or state environmental law, or any other
statute of any jurisdiction, or any regulation, or at common law or
otherwise, which is alleged to arise out of or is based upon any acts,
practices or omissions or alleged acts, practices or omissions of the
Borrowers or their agents or arises in connection with the duties,
obligations or performance of the Indemnified Parties in negotiating,
preparing, executing, accepting, keeping, completing, countersigning,
issuing, selling, delivering, releasing, assigning, handling, certifying,
processing or receiving or taking any other action with respect to the Loan
Documents and all documents, items and materials contemplated thereby even if
any of the foregoing arises out of an Indemnified Party's ordinary
negligence.  The indemnity set forth herein shall be in addition to any other
obligations or liabilities of the Borrowers to the Lenders hereunder or at
common law or otherwise, and shall survive any termination of this Agreement,
the expiration of the Loans and the payment of all indebtedness of the
Borrowers to the Lenders hereunder and under the Notes, provided that the
Borrowers shall have no obligation under this Section to the Lender with
respect to any of the foregoing arising out of the gross negligence or
willful misconduct of the Lender.  If any Claim is asserted against any
Indemnified Party, the Indemnified Party shall endeavor to notify the
Borrowers of such Claim (but failure to do so shall not affect the
indemnification herein made except to the extent of the actual harm caused by
such failure).  The Indemnified Party shall have the right to employ, at the
Borrowers' expense, counsel of the Indemnified Parties' choosing and to
control the defense of the Claim.  The Borrowers may at their own expense
also participate in the defense of any Claim.  Each Indemnified Party may
employ separate counsel in connection with any Claim to the extent such
Indemnified Party believes it reasonably prudent to protect such Indemnified
Party.  THE PARTIES INTEND FOR THE PROVISIONS OF THIS SECTION TO APPLY TO AND
PROTECT EACH INDEMNIFIED PARTY FROM THE CONSEQUENCES OF ANY LIABILITY
INCLUDING STRICT LIABILITY IMPOSED OR THREATENED TO BE IMPOSED ON AGENT AS
WELL AS FROM THE CONSEQUENCES OF ITS OWN NEGLIGENCE, WHETHER OR NOT THAT
NEGLIGENCE IS THE SOLE, CONTRIBUTING, OR CONCURRING CAUSE OF ANY CLAIM.

     20.  GOVERNING LAW.  THIS AGREEMENT IS BEING EXECUTED AND DELIVERED, AND IS
INTENDED TO BE PERFORMED, IN DALLAS, DALLAS COUNTY, TEXAS, AND THE SUBSTANTIVE
LAWS OF TEXAS SHALL GOVERN THE VALIDITY, CONSTRUCTION, ENFORCEMENT AND
INTERPRETATION OF THIS AGREEMENT AND ALL OTHER DOCUMENTS AND INSTRUMENTS
REFERRED TO HEREIN, UNLESS OTHERWISE SPECIFIED THEREIN.

     21.  INVALID PROVISIONS.  If any provision of this Agreement is held to be
illegal, invalid, or unenforceable under present or future laws effective during
the term of this Agreement, such provisions shall be fully severable and this
Agreement shall be construed and enforced as if such illegal, invalid or
unenforceable provision had never comprised a part of this Agreement, and the
remaining provisions of the Agreement shall remain in full force and effect


                                    -57-
<PAGE>

and shall not be affected by the illegal, invalid or unenforceable provision
or by its severance from this Agreement.

     22.  MAXIMUM INTEREST RATE.  Regardless of any provisions contained in this
Agreement or in any other documents and instruments referred to herein, the
Lenders shall never be deemed to have contracted for or be entitled to receive,
collect or apply as interest on the Notes any amount in excess of the Maximum
Rate, and in the event any Lender ever receives, collects or applies as interest
any such excess, or if an acceleration of the maturities of any Notes or if any
prepayment by the Borrowers results in the Borrowers having paid any interest in
excess of the Maximum Rate, such amount which would be excessive interest shall
be applied to the reduction of the unpaid principal balance of the Notes for
which such excess was received, collected or applied, and, if the principal
balance of such Note is paid in full, any remaining excess shall forthwith be
paid to the Borrowers.  All sums paid or agreed to be paid to the Lenders for
the use, forbearance or detention of the indebtedness evidenced by the Notes
and/or this Agreement shall, to the extent permitted by applicable law, be
amortized, prorated, allocated and spread throughout the full term of such
indebtedness until payment in full so that the rate or amount of interest on
account of such indebtedness does not exceed the Maximum Rate.  In determining
whether or not the interest paid or payable under any specific contingency
exceeds the Maximum Rate of interest permitted by law, the Borrowers and the
Lenders shall, to the maximum extent permitted under applicable law, (i)
characterize any non-principal payment as an expense, fee or premium, rather
than as interest; and (ii) exclude voluntary prepayments and the effect thereof;
and (iii) compare the total amount of interest contracted for, charged or
received with the total amount of interest which could be contracted for,
charged or received throughout the entire contemplated term of the Note at the
Maximum Rate.

     23.  AMENDMENTS.  This Agreement may be amended only by an instrument in
writing executed by an authorized officer of the party against whom such
amendment is sought to be enforced.

     24.  MULTIPLE COUNTERPARTS.  This Agreement may be executed in a number of
identical separate counterparts, each of which for all purposes is to be deemed
an original, but all of which shall constitute, collectively, one agreement.  No
party to this Agreement shall be bound hereby until a counterpart of this
Agreement has been executed by all parties hereto.

     25.  CONFLICT.  In the event any term or provision hereof is inconsistent
with or conflicts with any provision of the Loan Documents, the terms or
provisions contained in this Agreement shall be controlling.

     26.  SURVIVAL.  All covenants, agreements, undertakings, representations
and warranties made in the Loan Documents, including this Agreement, the Notes
or other documents and instruments referred to herein shall survive all closings
hereunder and shall not


                                    -58-
<PAGE>

be affected by any investigation made by any party.

     27.  PARTIES BOUND.  This Agreement shall be binding upon and inure to the
benefit of the parties hereto and their respective successors, assigns, heirs,
legal representatives and estates, provided, however, that the Borrowers may
not, without the prior written consent of all of the Lenders, assign any rights,
powers, duties or obligations hereunder.

     28.  ASSIGNMENTS AND PARTICIPATIONS.

          (a)  Each Lender shall have the right to sell, assign or transfer
     all or any part of its Note or Notes, its Commitment and its rights and
     obligations hereunder to one or more Affiliates, Lenders, financial
     institutions, pension plans, insurance companies, investment funds, or
     similar Persons who are Eligible Assignees or to a Federal Reserve Bank;
     PROVIDED, that in connection with each sale, assignment or transfer
     (other than to an Affiliate, a Bank or a Federal Reserve Bank), shall
     require the consent of Agent and the Borrowers, which consents will not
     be unreasonably withheld; provided, however, that if an Event of Default
     has occurred and is continuing, the consent of the Borrowers shall not
     be required.  Any such assignee, transferee or recipient shall have, to
     the extent of such sale, assignment, or transfer, the same rights,
     benefits and obligations as it would if it were such Lender and a holder
     of such Note, Commitment and rights and obligations, including, without
     limitation, the right to vote on decisions requiring consent or approval
     of all Lenders or Majority Lenders and the obligation to fund its
     Commitment; provided, that (1) each such sale, assignment, or transfer
     (other than to an Affiliate, a Bank or a Federal Reserve Bank) shall be
     in an aggregate principal amount not less than $5,000,000, (2) each
     remaining Lender shall at all times maintain Commitment then outstanding
     in an aggregate principal amount at least equal to $5,000,000; (3) each
     such sale, assignment or transfer shall be of a Pro Rata portion of such
     Lender's Commitment, (4) no Lender may offer to sell its Note or Notes,
     Commitment, rights and obligations or interests therein in violation of
     any securities laws; and (5) no such assignments (other than to a
     Federal Reserve Bank) shall become effective until the assigning Lender
     and its assignee delivers to Agent and Borrowers an Assignment and
     Acceptance and the Note or Notes subject to such assignment and other
     documents evidencing any such assignment.  An assignment fee in the
     amount of $3,500 for each such assignment (other than to an Affiliate, a
     Bank or the Federal Reserve Bank) will be payable to Agent by assignor
     or assignee. Within five (5) Business Days after its receipt of copies
     of the Assignment and Acceptance and the other documents relating
     thereto and the Note or Notes, the Borrowers shall execute and deliver
     to Agent (for delivery to the relevant assignee) a new Note or Notes
     evidencing such assignee's assigned Commitment and if the assignor
     Lender has retained a portion of its Commitment, a replacement Note in
     the principal amount of the Commitment retained by the assignor (except
     as provided in the last sentence of this paragraph (a) such Note or
     Notes to be in exchange for, but not in payment of, the Note or Notes
     held by such Lender).  On and after the effective date of an assignment


                                    -59-
<PAGE>

     hereunder, the assignee shall for all purposes be a Lender, party to
     this Agreement and any other Loan Document executed by the Lenders and
     shall have all the rights and obligations of a Lender under the Loan
     Documents, to the same extent as if it were an original party thereto,
     and no further consent or action by Borrowers, Lenders or the Agent
     shall be required to release the transferor Lender with respect to its
     Commitment assigned to such assignee and the transferor Lender shall
     henceforth be so released.

          (b)  Each Lender shall have the right to grant participations in all
     or any part of such Lender's Notes and Commitment hereunder to one or more
     pension plans, investment funds, insurance companies, financial
     institutions or other Persons, provided, that:

               (i)    each Lender granting a participation shall retain the
          right to vote hereunder, and no participant shall be entitled to
          vote hereunder on decisions requiring consent or approval of
          Lender or Majority Lenders (except as set forth in (iii) below);

               (ii)   in the event any Lender grants a participation
          hereunder, such Lender's obligations under the Loan Documents
          shall remain unchanged, such Lender shall remain solely
          responsible to the other parties hereto for the performance of
          such obligations, such Lender shall remain the holder of any such
          Note or Notes for all purposes under the Loan Documents, and
          Agent, each Lender and Borrowers shall be entitled to deal with
          the Lender granting a participation in the same manner as if no
          participation had been granted; and

               (iii)  no participant shall ever have any right by reason of
          its participation to exercise any of the rights of Lenders
          hereunder, except that any Lender may agree with any participant
          that such Lender will not, without the consent of such
          participant (which consent may not be unreasonably withheld)
          consent to any amendment or waiver requiring approval of all
          Lenders.

          (c)  It is understood and agreed that any Lender may provide to
     assignees and participants and prospective assignees and participants
     financial information and reports and data concerning Borrowers' properties
     and operations which was provided to such Lender pursuant to this
     Agreement.

          (d)  Upon the reasonable request of either Agent or Borrowers, each
     Lender will identify those to whom it has assigned or participated any part
     of its Notes and


                                    -60-
<PAGE>

     Commitment, and provide the amounts so assigned or participated.

     29.  CHOICE OF FORUM: CONSENT TO SERVICE OF PROCESS AND JURISDICTION.  THE
OBLIGATIONS OF BORROWERS UNDER THE LOAN DOCUMENTS ARE PERFORMABLE IN DALLAS
COUNTY, TEXAS.  ANY SUIT, ACTION OR PROCEEDING AGAINST THE BORROWERS WITH
RESPECT TO THE LOAN DOCUMENTS OR ANY JUDGMENT ENTERED BY ANY COURT IN RESPECT
THEREOF, MAY BE BROUGHT IN THE COURTS OF THE STATE OF TEXAS, COUNTY OF DALLAS,
OR IN THE UNITED STATES COURTS LOCATED IN DALLAS COUNTY, TEXAS AND THE BORROWERS
HEREBY SUBMIT TO THE NON-EXCLUSIVE JURISDICTION OF SUCH COURTS FOR THE PURPOSE
OF ANY SUCH SUIT, ACTION OR PROCEEDING.  THE BORROWERS HEREBY IRREVOCABLY
CONSENT TO SERVICE OF PROCESS IN ANY SUIT, ACTION OR PROCEEDING IN SAID COURT BY
THE MAILING THEREOF BY LENDER BY REGISTERED OR CERTIFIED MAIL, POSTAGE PREPAID,
TO THE BORROWERS, AS APPLICABLE, AT THE ADDRESS FOR NOTICES AS PROVIDED IN
SECTION 17.  THE BORROWERS HEREBY IRREVOCABLY WAIVE ANY OBJECTION WHICH THEY MAY
NOW OR HEREAFTER HAVE TO THE LAYING OF VENUE OF ANY SUIT, ACTION OR PROCEEDING
ARISING OUT OF OR RELATING TO ANY LOAN DOCUMENT BROUGHT IN THE COURTS LOCATED IN
THE STATE OF TEXAS, COUNTY OF DALLAS, AND HEREBY FURTHER IRREVOCABLY WAIVES ANY
CLAIM THAT ANY SUCH SUIT, ACTION OR PROCEEDING BROUGHT IN ANY SUCH COURT HAS
BEEN BROUGHT IN AN INCONVENIENT FORUM.

     30.  WAIVER OF JURY TRIAL.  THE BORROWERS HEREBY WAIVE, TO THE FULLEST
EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY
LEGAL PROCEEDING ARISING OUT OF OR RELATED TO THIS AGREEMENT OR THE TRANSACTIONS
CONTEMPLATED HEREBY.

     31.  OTHER AGREEMENTS.  THIS WRITTEN CREDIT AGREEMENT REPRESENTS THE FINAL
AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR,
CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES.  THERE ARE NO
UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

     32.  FINANCIAL TERMS.  All accounting terms used in this Agreement which
are not specifically defined herein shall be construed in accordance with GAAP.


                                    -61-
<PAGE>

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

                              BORROWERS:

                              MIDDLE BAY OIL COMPANY, INC.
                              an Alabama corporation


                              By: /s/ Floyd C. Wilson
                                  -------------------------------------------
                              Name:   Floyd C. Wilson
                                    -----------------------------------------
                              Title:  President and Chief Executive Officer
                                     ----------------------------------------

                              ENEX RESOURCES CORPORATION
                              a Delaware corporation


                              By: /s/ Floyd C. Wilson
                                  -------------------------------------------
                              Name:   Floyd C. Wilson
                                    -----------------------------------------
                              Title:  President and Chief Executive Officer
                                     ----------------------------------------

                              MIDDLE BAY PRODUCTION COMPANY, INC.
                              a Kansas corporation


                              By: /s/ Floyd C. Wilson
                                  -------------------------------------------
                              Name:   Floyd C. Wilson
                                    -----------------------------------------
                              Title:  President and Chief Executive Officer
                                     ----------------------------------------

                              LENDERS:

                              BANK ONE, TEXAS, N.A.,
                              a national banking association


                              By: /s/ Mynan C. Feldman
                                  -------------------------------------------
                                      Mynan C. Feldman, First Vice President


                                    -62-
<PAGE>

                              THE BANK OF NOVA SCOTIA



                              By: /s/ F.C.H. Ashby
                                  -------------------------------------------
                              Name:   F.C.H. Ashby
                                    -----------------------------------------
                              Title:  Senior Manager Loan Operations
                                     ----------------------------------------

                              UNION BANK OF CALIFORNIA, N.A.


                              By: /s/ Randy Osterberg
                                  -------------------------------------------
                                      Randy Osterberg, Vice President


                              By: /s/ Ali Ahmed
                                  -------------------------------------------
                                      Ali Ahmed, Investment Banking Officer

                              WELLS FARGO BANK


                              By: /s/ Brian K. Otis
                                  -------------------------------------------
                                      Brian K. Otis, Assistant Vice President

                              CIBC, INC.



                              By: /s/ Roger Colden
                                  -------------------------------------------
                              Name:   Roger Colden
                                    -----------------------------------------
                              Title:  Authorized Signatory
                                     ----------------------------------------


                                    -63-
<PAGE>
                              ADMINISTRATIVE AGENT:

                              BANK ONE, TEXAS, N.A.,
                              a national banking association


                              By: /s/ Mynan C. Feldman
                                  -------------------------------------------
                                      Mynan C. Feldman, First Vice President

                              SYNDICATION AGENT:

                              UNION BANK OF CALIFORNIA, N.A.


                              By: /s/ Randy Osterberg
                                  -------------------------------------------
                                      Randy Osterberg, Vice President


                              By: /s/ Ali Ahmed
                                  -------------------------------------------
                                      Ali Ahmed, Investment Banking Officer


                                    -64-


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