EXHIBIT 10(W)
                      LETTER OF CREDIT AGREEMENT


                      dated as of March 16, 1994

                                 among

                   SANTA FE ENERGY RESOURCES, INC.;

                      the Banks signatory hereto,

                                  and

               TEXAS COMMERCE BANK NATIONAL ASSOCIATION
                 as Co-Agent and Administrative Agent

                                  and

                      NATIONSBANK OF TEXAS, N.A.
                              as Co-Agent


                           TABLE OF CONTENTS

Section 1.  Definitions and Accounting Matters  . . . . . . . . .    1
     1.1  Certain Defined Terms . . . . . . . . . . . . . . . . .    1
     1.2  Accounting Terms and Determinations . . . . . . . . . .   31

Section 2.  Commitments . . . . . . . . . . . . . . . . . . . . .   32
     2.1  Letters of Credit . . . . . . . . . . . . . . . . . . .   32
     2.3  Reductions and Changes of Commitments . . . . . . . . .   37
     2.4  Several Obligations . . . . . . . . . . . . . . . . . .   38
     2.5  Fees  . . . . . . . . . . . . . . . . . . . . . . . . .   38

Section 3.  Prepayments . . . . . . . . . . . . . . . . . . . . .   38
     3.1  (a)    Commitment Amount  . . . . . . . . . . . . . . .   38

Section 4.  Payments of Principal and Interest  . . . . . . . . .   39
     4.1  Repayment of Reimbursement Obligations  . . . . . . . .   39
     4.2  Interest  . . . . . . . . . . . . . . . . . . . . . . .   39

Section 5.  Payments; Pro Rata Treatment; Computations, Etc.  . .   39
     5.1  Payments  . . . . . . . . . . . . . . . . . . . . . . .   39
     5.2  Pro Rata Treatment  . . . . . . . . . . . . . . . . . .   40
     5.3  Computations  . . . . . . . . . . . . . . . . . . . . .   40
     5.4  Minimum and Maximum Amounts . . . . . . . . . . . . . .   40
     5.5  Certain Actions, Notices, Etc . . . . . . . . . . . . .   40
     5.6  Non-Receipt of Funds by the Agent . . . . . . . . . . .   41
     5.7  Sharing of Payments, Etc. . . . . . . . . . . . . . . .   42
     5.8  Other Expenses  . . . . . . . . . . . . . . . . . . . .   42

Section 6.  Yield Protection and Illegality . . . . . . . . . . .   42
     6.1  Additional Costs in Respect of Letters of Credit  . . .   42
     6.2  Capital Adequacy  . . . . . . . . . . . . . . . . . . .   43

Section 7.  Conditions Precedent  . . . . . . . . . . . . . . . .   44
     7.1  Closing Conditions  . . . . . . . . . . . . . . . . . .   44
     7.2  All Letters of Credit . . . . . . . . . . . . . . . . .   46

Section 8.  Representations and Warranties  . . . . . . . . . . .   46
     8.1  Corporate Existence . . . . . . . . . . . . . . . . . .   47
     8.2  Information . . . . . . . . . . . . . . . . . . . . . .   47
     8.3  Litigation; Compliance  . . . . . . . . . . . . . . . .   47
     8.4  No Breach . . . . . . . . . . . . . . . . . . . . . . .   48
     8.5  Corporate Action  . . . . . . . . . . . . . . . . . . .   48
     8.6  Approvals . . . . . . . . . . . . . . . . . . . . . . .   48
     8.7  Regulations G, U and X  . . . . . . . . . . . . . . . .   49
     8.8  ERISA . . . . . . . . . . . . . . . . . . . . . . . . .   49
     8.9  Taxes . . . . . . . . . . . . . . . . . . . . . . . . .   49
     8.10 Subsidiaries  . . . . . . . . . . . . . . . . . . . . .   49
     8.11 Investment Company Act  . . . . . . . . . . . . . . . .   49
     8.12 Public Utility Holding Company Act  . . . . . . . . . .   49

                                  -i-


     8.13 Environmental Matters . . . . . . . . . . . . . . . . .   50

Section 9. Covenants  . . . . . . . . . . . . . . . . . . . . . .   50
     9.1   Financial Statements and Certificates  . . . . . . . .   50
     9.2   Inspection of Property . . . . . . . . . . . . . . . .   54
     9.3   Compliance with Environmental Laws . . . . . . . . . .   54
     9.4   Payment of Taxes . . . . . . . . . . . . . . . . . . .   55
     9.5   Maintenance of Insurance . . . . . . . . . . . . . . .   55
     9.6   Restricted Payments and Restricted Investments . . . .   55
     9.7   Lien, Debt and Other Restrictions. . . . . . . . . . .   57
     9.8   Issuance of Stock by Restricted Subsidiaries . . . . .   68
     9.10  Prepayment of Junior Securities  . . . . . . . . . . .   68

Section 10.  Defaults.  . . . . . . . . . . . . . . . . . . . . .   68
     10.1  Events of Default. . . . . . . . . . . . . . . . . . .   68

Section 11.  The Agent  . . . . . . . . . . . . . . . . . . . . .   72
     11.1  Appointment, Powers and Immunities . . . . . . . . . .   72
     11.2  Reliance by Agent  . . . . . . . . . . . . . . . . . .   73
     11.3  Defaults . . . . . . . . . . . . . . . . . . . . . . .   73
     11.4  Rights as a Bank . . . . . . . . . . . . . . . . . . .   73
     11.5  INDEMNIFICATION  . . . . . . . . . . . . . . . . . . .   74
     11.6  Non-Reliance on the Agent and Other Banks  . . . . . .   74
     11.7  Failure to Act . . . . . . . . . . . . . . . . . . . .   75
     11.8  Resignation or Removal of the Agent  . . . . . . . . .   75

Section 12.  Miscellaneous  . . . . . . . . . . . . . . . . . . .   75
     12.1  Waiver . . . . . . . . . . . . . . . . . . . . . . . .   75
     12.2  Notices  . . . . . . . . . . . . . . . . . . . . . . .   76
     12.3  Expenses, Etc. . . . . . . . . . . . . . . . . . . . .   76
     12.4  INDEMNIFICATION  . . . . . . . . . . . . . . . . . . .   76
     12.5  Amendments, Etc. . . . . . . . . . . . . . . . . . . .   77
     12.6  Successors and Assigns . . . . . . . . . . . . . . . .   78
     12.7  Survival; Term; Reinstatement  . . . . . . . . . . . .   81
     12.8  Limitation of Interest . . . . . . . . . . . . . . . .   81
     12.9  Captions . . . . . . . . . . . . . . . . . . . . . . .   82
     12.10 Counterparts . . . . . . . . . . . . . . . . . . . . .   82
     12.11 GOVERNING LAW  . . . . . . . . . . . . . . . . . . . .   83
     12.12 Severability . . . . . . . . . . . . . . . . . . . . .   83
     12.13 Chapter 15 Not Applicable  . . . . . . . . . . . . . .   83
                                 
                                 -ii-


                      LETTER OF CREDIT AGREEMENT


     This Letter of Credit Agreement (as amended, modified,
supplemented and restated from time to time, this "AGREEMENT") dated as
of March 16, 1994, is by and among SANTA FE ENERGY RESOURCES, INC.
(the "COMPANY"), a Delaware corporation; each of the lenders which is
or which may from time to time become a signatory hereto (individually
a "BANK" and collectively the "BANKS"); TEXAS COMMERCE BANK NATIONAL
ASSOCIATION ("TCB"), a national banking association, as Administrative
Agent for the Banks (in such capacity, together with its successors in
such capacity, the "AGENT"); and TCB and NATIONSBANK OF TEXAS, N.A., a
national banking association, as Co-Agents (in such capacity, the "CO-
AGENTS").

     The parties agree as follows:

     Section 1.  DEFINITIONS AND ACCOUNTING MATTERS.

     1.1  CERTAIN DEFINED TERMS.  As used herein, the following terms
shall have the following meanings:

     "ACHIEVEMENT DATE" shall mean the first date on which both (a)
the aggregate minimum Qualifying Amount of Junior Securities to be
used in determining the applicable table on EXHIBIT C for the
Preliminary Available Amount has been issued and the gross proceeds
thereof received by the Company and (b) all Designated Debt for the
aggregate Qualifying Amount of Junior Securities actually issued, as
shown on SCHEDULE X, shall have been repaid or Defeased.  In
determining any Achievement Date, the Qualifying Amounts of Junior
Securities issued on such date, on the Qualifying Date and on each
additional date, if any, on which Junior Securities have been issued
shall be aggregated.  For example, if there is only one issuance of
Junior Securities and such issuance is in a Qualifying Amount of
$75,000,000, the Preliminary Available Amount will thereafter be
determined according to Table Four of EXHIBIT C, and the Qualifying
Date and the Achievement Date will be the same.  For example, if there
are two issuances of Junior Securities, one in the amount of
$75,000,000 and a later one in the amount of $50,000,000, the
Qualifying Date will be the date of the first issuance, which will
also be the Achievement Date for the $75,000,000 level in EXHIBIT C,
and the Preliminary Available Amount will be determined according to
Table Four of EXHIBIT C until the date of the second issuance; the
date of the second issuance will be the Achievement Date for the
$125,000,000 level EXHIBIT C, and the Preliminary Available Amount
will thereafter be determined according to Table Two of EXHIBIT F.  An
Achievement Date must occur, if at all, prior to July 1, 1994.



     "ADDITIONAL COSTS" shall have the meaning ascribed to such term
in SECTION 6.1.

     "ADOBE" shall mean Adobe Resources Corporation, formerly a
Delaware corporation.

     "ADOBE PROPERTIES" shall mean oil, gas and mineral properties and
other assets owned by Adobe at the time of the Merger.

     "AFFILIATE" shall mean, as to any Person, any other Person which
directly or indirectly controls, or is under common control with, or
is controlled by, such Person; and with respect to an individual,
"AFFILIATE" shall also mean any individual related to such individual
by blood or marriage.  As used in this definition, "CONTROLS",
"CONTROLLED BY" and "UNDER COMMON CONTROL WITH" shall mean possession,
directly or indirectly, of power to direct or cause the direction of
management or policies (whether through ownership of securities or
partnership or other ownership interests, by contract or otherwise).

     "AGGREGATE COMMITMENT" shall mean the total of all Commitments of
all Banks.

     "ALTERNATE ANNUAL DEBT SERVICE COVERAGE RATIO" shall mean, as of
any date of determination and for the Calculation Period in which such
date occurs and for each Calculation Period thereafter to and
including the Calculation Period including the Termination Date, the
lowest of the ratios obtained by dividing (a) Combined CFADS
(calculated on the basis of the Most Recent Engineering Report) for
such Calculation Period by (b) the sum of (1) the Alternate Debt
Service of the Company and the Restricted Subsidiaries for such
Calculation Period PLUS (2), at all times and to the extent the
Special Subsidiary Qualifying Conditions are met, the Special
Subsidiary Percentage times the Alternate Debt Service of the Special
Subsidiary for such Calculation Period (in each case calculated on the
basis set forth in the most recent Coverage Report delivered to the
Agent pursuant to SECTION 9.1 and taking into account any incurrence
or prepayment of Covered Debt by the Company or any of the Restricted
Subsidiaries or the Special Subsidiary since the date of such Coverage
Report).

     "ALTERNATE BASE RATE" shall mean, for any date, a rate per annum
(rounded upwards, if necessary, to the next higher 1/100%) equal to
the greater of (a) the Prime Rate in effect on such day or (b) the Fed
Funds Rate in effect for such day plus 1/2%.    Any change in the
Alternate Base Rate due to a change in the Fed Funds Rate shall be
effective on the effective date of such change in the Fed Funds Rate. 
If for any reason the Agent shall have determined (which determination
shall be conclusive absent manifest error) that it is unable to
ascertain the Fed Funds Rate for any reason, including the inability
or failure of the Agent to obtain sufficient bids or publications in
accordance with the terms 

                                  -2-


hereof, the Alternate Base Rate shall be the Prime Rate until the
circumstances giving rise to such inability no longer exist.

     "ALTERNATE DEBT SERVICE" shall mean, for any Calculation Period
and with respect to any Person, the total of principal payments in
respect of Covered Debt of such Person and the total of interest
payments (using, with respect to interest to accrue, the interest
rates set forth in the most recent Approved Assumptions for such
Covered Debt not bearing interest at a fixed rate; if some or all of
such Covered Debt bears interest at one or more fixed rates as of the
date of determination of Alternate Debt Service but such Covered Debt
will not bear interest at such fixed rate or rates to the end of such
Calculation Period, then interest payments in respect of Alternate
Debt Service with respect to such Covered Debt shall be calculated on
the basis of such fixed rate or rates for such time as the same shall
be applicable to such Covered Debt, and then at the interest rates set
forth in the most recent Approved Assumptions) in respect of Covered
Debt of such Person, in each case paid and scheduled to be paid during
such Calculation Period; PROVIDED that the principal amount of any
Covered Debt of such Person which by its terms matures on a date
within such Calculation Period but which may reasonably be expected to
be reborrowed in a Rollover on such date shall not be deemed, for
purposes of this definition, to be scheduled to be paid on such date;
and PROVIDED FURTHER that for purposes of this definition it shall be
assumed that (a) surety bonds for environmental purposes and letters
of credit issued for the account of a Person will be fully drawn upon
their respective expiry dates, (b) the reimbursement obligations of a
Person with respect to all surety bonds for environmental purposes and
letters of credit issued for its account shall be satisfied
immediately and considered as a "principal payment" for purposes of
this definition.

     "AMENDED AND RESTATED REVOLVING CREDIT AGREEMENT" shall mean that
certain Amended and Restated Revolving Credit Agreement dated as of
March 16, 1994, among the Company, the Agent, the Co-Agents, and the
Banks.

     "ANNUAL DEBT SERVICE COVERAGE RATIO" shall mean, as of any date
of determination and for the Calculation Period in which such date
occurs and for each Calculation Period thereafter to and including the
Calculation Period including the Termination Date, the lowest of the
ratios obtained by dividing (a) Combined CFADS (calculated on the
basis of the Most Recent Engineering Report) for such Calculation
Period by (b) the sum of (1) the Debt Service of the Company and the
Restricted Subsidiaries for such Calculation Period PLUS (2), at all
times and to the extent the Special Subsidiary Qualifying Conditions
are met, the Special Subsidiary Percentage times the Debt Service of
the Special Subsidiary for such Calculation Period (in each case
calculated on the basis set forth in the most recent Coverage Report
delivered to the Agent pursuant to SECTION 9.1 and taking into account
any incurrence or 

                                  -3-


prepayment of Covered Debt by the Company or the Restricted
Subsidiaries or the Special Subsidiary since the date of such Coverage
Report).

     "APPLICABLE ENVIRONMENTAL LAWS" shall mean all applicable
environmental or pollution-control Legal Requirements governing,
without limitation, wastewater effluent, solid and hazardous waste or
substances and air emissions, together with any other applicable
requirements for conducting, on a timely basis, reporting, record-
keeping, periodic tests and monitoring for contamination of ground
water, surface water, air and land and for biological toxicity of the
aforesaid, including, without limitation, the Resource Conservation
and Recovery Act of 1976, the Comprehensive Environmental Response
Compensation and Liability Act of 1980 (as amended by the Superfund
Amendments and Reauthorization Act), the Toxic Substances Control Act,
the Safe Drinking Water Act, the Hazardous Materials Transportation
Act, the Clean Air Act, the Clean Water Act, the Oil Pollution Act,
the Texas Water Code, the Texas Health and Safety Code, the Texas
Natural Resources Code, the Louisiana Environmental Quality Act, the
Louisiana Air Control Law, the Louisiana Water Control Law, the
Louisiana Solid Waste Management and Resource Recovery Law, the
Louisiana Hazardous Waste Control Law, the Louisiana Oil Spill
Prevention and Response Act, the Louisiana Resource Recovery and
Development Act, the Louisiana Waste Reduction Law, the Louisiana
Hazardous Material Information Development, Preparedness, and Response
Act, the Louisiana State and Local Coastal Resources Management Act of
1978, the Louisiana Coastal Wetlands Conservation and Restoration Act,
the Louisiana Abandoned Oilfield Waste Site Law, and the Louisiana
Mineral Code, in each case as amended from time to time. 

     "APPLICABLE LENDING OFFICE" shall mean, for each Bank the office
of such Bank (or of an Affiliate of such Bank) designated below its
name on the signature pages hereof or such other office of such Bank
(or of an Affiliate of such Bank) as such Bank may from time to time
specify to the Agent and the Company as the office by which its
Letters of Credit are to be issued and maintained.

     "APPLICABLE MARGIN" for Letters of Credit shall mean 1.00% per
annum.

     "APPLICABLE PERIODS" shall mean the Applicable Periods identified
on EXHIBIT C.

     "APPLICATION" shall mean each application and agreement for a
Letter of Credit, or similar instrument or agreement, substantially in
the form of EXHIBIT A, now or hereafter executed by the Company in
connection with any Letter of Credit at any time issued or to be
issued hereunder; to the extent that an Application is inconsistent
with this Agreement, this Agreement shall control.

                                  -4-


     "APPROVED ASSUMPTIONS" shall mean:

     (a)  until the first delivery of an Independent Engineering
          Report hereunder, those assumptions set forth on SCHEDULE
          III; and

     (b)  thereafter, for each Independent Engineering Report
          hereunder, assumptions as to product prices, interest rates,
          escalation rates, discount rates and future levels of
          production curtailment, which assumptions shall be
          determined by the Co-Agents after consultation with the
          Company and set forth (x) in the case of each Required
          Reserve Report, in a notice sent to the Banks on or before
          January 21 of each such year and in a notice from the Agent
          to the Company on or prior to the next succeeding February 1
          or (y) in the case of each Optional Reserve Report, in a
          notice sent to the Banks within 30 days of the delivery of
          the notice to the Co-Agents required by SECTION 2.2(d) and
          in a notice from the Agent to the Company on or prior to a
          date 10 days after the date of such notice to the Banks; 

PROVIDED that, in the case of CLAUSE (b) preceding such assumptions
are, within ten days after any such notice is sent to the Banks,
approved (as indicated in one or more notices received by the Agent
within such ten-day period) by Banks with aggregate Commitment
Percentages of 75% or more.  If the assumptions proposed by the Co-
Agents are not approved, the Banks will work to determine and approve
alternative assumptions in good faith in accordance with their
customary oil and gas lending practices.  Approved Assumptions set
forth in a notice to the Company shall govern until new Approved
Assumptions are set forth in a notice to the Company as provided
herein, and shall be used, without limitation, in preparation of the
next Independent Engineering Report required to be delivered pursuant
to  SECTION 9.1 or permitted to be delivered pursuant to SECTION
2.2(d).

     "ASSIGNMENT AGREEMENT" shall mean an Assumption and Assignment
Agreement substantially in the form of EXHIBIT B.

     "ATTRIBUTABLE DEBT" shall mean the lesser of (a) the fair market
value of the assets sold pursuant to any Sale and Leaseback
Transaction (which determination shall be based upon a written opinion
(the cost of which shall be borne exclusively by the Company) as to
valuation from an independent valuation expert selected by the
Company) or (b) the present value (discounted according to GAAP at the
interest rate implicit in the lease) of the obligations of the lessee
for rental payments during the term of any lease constituting a part
of such Sale and Leaseback Transaction.

                                  -5-


     "AVAILABLE AMOUNT" shall mean subject always to the limitation
set forth in SECTION 2.2(e), the Preliminary Available Amount from
time to time in effect, as the same may be adjusted upward and
downward in accordance with SECTION 2.2 or permanently decreased in
accordance with SECTION 2.3.

     "BOARD" shall mean the Board of Governors of the Federal Reserve
System of the United States.

     "BUSINESS DAY" shall mean any day other than a day on which
commercial banks are authorized or required to close in Houston, Texas
or New York, New York.

     "CALCULATION PERIOD" shall mean the year ending on the last day
of a March; with respect to calculations for a Calculation Period
determined with reference to amounts for two calendar years, it shall
be assumed (unless such amounts are due on scheduled dates, in which
case such calculations shall be made with reference to such dates)
that each such calendar year amount is spread evenly over the
appropriate calendar year, with the result that each such amount for a
Calculation Period beginning on an April 1 shall be composed of (a)
9/12 of the calendar year amount for the calendar year containing such
March 1 plus (b) 3/12 of the calendar year amount for the next
calendar year.

     "CAPITAL GAINS" shall mean gains (net of expenses and income
taxes applicable thereto) in excess of losses resulting from the sale,
conversion or other disposition of capital assets (I.E., assets other
than current assets).

     "CAPITALIZED LEASE OBLIGATION" shall mean any rental obligation
which, under GAAP, is or will be required to be capitalized on the
books of the Company or any Restricted Subsidiary, taken at the amount
thereof accounted for as indebtedness (net of interest expense) in
accordance with such principles.

     "CFADS" shall mean, for any Calculation Period and with respect
to any Person, (a) Net Oil and Gas Income (PROVIDED that in
calculating Combined CFADS, no more than 25% of Net Oil and Gas Income
may be attributable to proved nonproducing and proved undeveloped
Recognized Proved Reserves) LESS (b) Projected G & A Expense LESS (c)
Projected Income Tax Expense PLUS (d) anticipated net income (or minus
anticipated net losses) from the Price Protection Agreements
(determined on the basis of the Approved Assumptions), (e) PLUS any
anticipated gain, and MINUS any anticipated loss, on Interest Rate
Protection Agreements (determined on the basis of the Approved
Assumptions), PLUS (f) other income from operations as reasonably
projected under the Approved Assumptions, not to exceed 5% of Combined
CFADS, and PLUS (g) proceeds of sales of assets permitted by the
Credit Documents, to the extent (but only to the extent) such proceeds
are applied as 

                                  -6-


prepayments pursuant to SECTION 3.1, in each case for such Calculation
Period and such Person.

     "CHANGE OF CONTROL" shall mean any change so that any Person (or
any Persons acting together which would constitute a Group), together
with any Affiliates or Related Persons thereof, shall at any time
either (a) Beneficially Own more than 50% of the aggregate voting
power of all classes of Voting Stock of the Company or (b) succeed in
having sufficient of its or their nominees elected to the Board of
Directors of the Company such that such nominees, when added to any
existing director remaining on the Board of Directors of the Company
after such election who is an Affiliate or Related Person of such
Person or Group, shall constitute a majority of the Board of Directors
of the Company.  As used herein (a) "BENEFICIALLY OWN" shall mean
beneficially own as defined in Rule 13d-3 of the Securities Exchange
Act of 1934, as amended (the "EXCHANGE ACT"), or any successor
provision thereto; (b) "GROUP" shall mean a "group" for purposes of
Section 13(d) of the Exchange Act; (c) "RELATED PERSON" of any Person
shall mean any other Person owning (1) 5% or more of the outstanding
common stock of such Person or (2) 5% or more of the Voting Stock of
such Person, and (d) "VOTING STOCK" of any Person shall mean capital
stock of such Person which ordinarily has voting power for the
election of directors (or persons performing similar functions) of
such Person, whether at all times or only so long as no senior class
of securities has such voting power by reason of any contingency.

     "CHAPTER ONE" shall mean Chapter One of the Texas Credit Code, as
in effect on the date the document using such term was executed.

     "CODE" shall mean the Internal Revenue Code of 1986, as amended,
or any successor statute, together with all publicly available written
regulations, rulings and interpretations thereof or thereunder by the
Internal Revenue Service.

     "COLLATERAL" shall mean all property at any time subject to the
Security Documents under the Amended and Restated Revolving Credit
Agreement.

     "COMBINED CFADS" shall mean, for any Calculation Period, the sum
of (a) CFADS of the Company and the Restricted Subsidiaries PLUS, at
all times and to the extent all Special Subsidiary Qualifying
Conditions are met, (b) the product of (1) the Special Subsidiary
Percentage times (2) the CFADS of the Special Subsidiary, in each case
for such Calculation Period.

     "COMBINED COVERED DEBT" shall mean, as of any date, the sum of
(a) the Covered Debt of the Company and the Restricted Subsidiaries
PLUS, at all times and to the extent all Special Subsidiary Qualifying
Conditions are met as of such date, (b) the product of (1) the Special
Subsidiary Percentage times (2) the Covered Debt of the Special
Subsidiary, all as of such date.

                                  -7-


     "COMBINED GROUP" shall mean the Company, the Restricted
Subsidiaries and the Special Subsidiary.

     "COMBINED RESERVE VALUE" shall mean, as of any date, the sum of
(a) the Reserve Value of the Company and the Restricted Subsidiaries
PLUS, at all times and to the extent all Special Subsidiary Qualifying
Conditions are met as of such date, (b) the product of (1) the Special
Subsidiary Percentage times (2) the Reserve Value of the Special
Subsidiary, all as of such date.  In calculating the Combined Reserve
Value, no more than 25% of such Combined Reserve Value may be
attributable to the combination of proved nonproducing and proved
undeveloped Recognized Proved Reserves.

     "COMMITMENT" shall mean, as to any Bank, the obligation, if any,
of such Bank to incur Letter of Credit Liabilities in an aggregate
principal amount at any one time outstanding up to but not exceeding
such Bank's Commitment Percentage times the difference between (a) the
Available Amount then in effect, and (b) the aggregate unpaid balance
of the Facility B Notes, which amount shall be up to but not exceeding
the amount set forth opposite such Bank's name on the signature pages
hereof under the caption "Commitment" (as the same may be reduced from
time to time pursuant to SECTION 2.3).

     "COMMITMENT FEE" shall mean the commitment fees payable by the
Company to the Agent for the account of the Banks in their Commitment
Percentages as provided in SECTION 2.5.

     "COMMITMENT PERCENTAGE" shall mean, as to any Bank, the 
percentage equivalent of a fraction, the numerator of which is the amount
of such Bank's Commitment as shown opposite such Bank's name on the
signature pages hereof under the caption "Commitment", subject to
reduction and the identification of new Banks pursuant to SECTION
12.6, and the denominator of which is the Aggregate Commitment.

     "CONSOLIDATED NET EARNINGS" shall mean consolidated gross
revenues (including Capital Gains) of the Company and the Restricted
Subsidiaries less all operating and non-operating expenses of the
Company and the Restricted Subsidiaries including all charges of a
proper character (including current and deferred taxes on income,
provision for taxes on unremitted foreign earnings which are included
in gross revenues, and current additions to reserves), but not
including in gross revenues any dividends, distributions or other
payments received by the Company or any of its Restricted Subsidiaries
in connection with the Hadson Stock, unless received in the form of
cash, or any dividends, distributions or other payments received by
the Company or any of its Restricted Subsidiaries from the Special
Subsidiary or gains resulting from write-up of assets, any equity of
the Company or any Restricted Subsidiary in the unremitted earnings of
any Person which is not a Restricted 

                                  -8-


Subsidiary, any earnings of any Person acquired by the Company or any
Restricted Subsidiary through purchase, merger or consolidation or
otherwise for any year prior to the year of acquisition, or any
deferred credit representing the excess of equity in any Restricted
Subsidiary at the date of acquisition over the cost of the investment
in such Restricted Subsidiary; all determined in accordance with GAAP.

     "CONSOLIDATED NET EARNINGS AVAILABLE FOR FIXED CHARGES" shall
mean for any period the sum of (a) Consolidated Net Earnings for such
period (PROVIDED that the maximum amount of Capital Gains included
therein shall be $3,000,000 through December 31, 1990 and such maximum
amount shall increase by $150,000 on the first day of each year
thereafter); without duplication, (b) cash distributions received
during such period by the Company and the Restricted Subsidiaries on
their Investment in the Special Subsidiary to the extent not
reinvested in the Special Subsidiary; to the extent deducted from
gross revenues in determining Consolidated Net Earnings, (c) all
provisions for any federal, state or other income taxes made by the
Company and the Restricted Subsidiaries during such period; (d) Fixed
Charges of the Company and the Restricted Subsidiaries during such
period; (e) depreciation, depletion and amortization charges of the
Company and the Restricted Subsidiaries for such period, and (f) all
other non-cash charges of the Company and the Restricted Subsidiaries
for such period, all determined in accordance with GAAP.

     "CONSOLIDATED NET TANGIBLE ASSETS" shall mean the aggregate net
tangible assets of the Company and the Restricted Subsidiaries,
determined as follows:

     (a)  The MLP Investment (at such times as SFEP is treated as the
Special Subsidiary) plus the aggregate gross book value of all the
assets of the Company and the Restricted Subsidiaries, both real and
personal, shall be computed, EXCLUDING, however, the following items:

          (i)  all franchises, licenses, permits, patents, patent
applications, copyrights, trademarks, trade names, goodwill,
experimental or organizational expense, unamortized debt discount and
expense, and all other assets which under GAAP are deemed intangible;

         (ii)  any reacquired shares or reacquired Debt of the Company
or the Restricted Subsidiaries;          
        (iii)  any write-up of assets made after December 31, 1989;

         (iv)  50% of the value of all assets of the Company and the
Restricted Subsidiaries acquired after April 1, 1990 which are located
outside the United States of America and Canada and not 

                                  -9-


freely returnable to the United States of America or Canada, including
any notes or accounts receivable from any debtor having any
substantial part of its business, operations or properties located
outside the United States of America and Canada, except notes or
accounts receivable from such a debtor which arose in the ordinary
course of business of the Company or any Restricted Subsidiary, as the
case may be, to which such notes or accounts receivable are payable
and which otherwise constitute current assets, but only to the extent
of an amount of dollars readily realizable from such notes or accounts
receivable by liquidation either directly or through a currency freely
convertible into dollars; and

          (v)  all Restricted Investments of the Company and the
Restricted Subsidiaries (other than Restricted Investments in the
capital stock of Hadson).

     (b)  From the gross book value of the tangible assets of the
Company and the Restricted Subsidiaries, determined as provided in the
preceding CLAUSE (a), there shall be deducted the following items:

          (i)  all reserves for depreciation, depletion, obsolescence
and amortization of the assets of the Company and the Restricted
Subsidiaries (other than assets excluded as provided in the preceding
CLAUSE (a)), all proper reserves (other than reserves for deferred
taxes and general contingency reserves and other reserves representing
mere appropriations of surplus) which in accordance with GAAP should
be set aside in connection with the business conducted by them;

         (ii)  all Current Debt of the Company and the Restricted
Subsidiaries; and

         (iii)  all other liabilities of the Company and the
Restricted Subsidiaries, including the reduction in equity attri-
butable to minority interests but excluding deferred taxes, Funded
Debt of the Company and the Restricted Subsidiaries, capital shares,
surplus and general contingency reserves and other reserves
representing mere appropriations of surplus.

     (c)  In the determination of Consolidated Net Tangible Assets, no
amount shall be included therein on account of any excess cost of
acquisition of shares of any Restricted Subsidiary over the net book
value of the assets of such Restricted Subsidiary attributable to such
shares at the date of such acquisition or on account of any excess of
the net book value of the assets of any Restricted Subsidiary
attributable to any shares of such Restricted Subsidiary at the date
of acquisition of such shares over the cost of acquisition of such
shares.

                                 -10-


     "COVERAGE REPORT" shall mean a report substantially in the form
of SCHEDULE IV setting forth the calculation of the TLOR Coverage
Ratio, the SLOR Coverage Ratio, the Annual Debt Service Coverage Ratio
and the Alternate Annual Debt Service Coverage Ratio.     

     "COVERED DEBT" shall mean, for any Person, without duplication,
(a) all obligations for borrowed money (including obligations for
borrowed money consisting of or arising in connection with Junior
Securities); (b) all obligations evidenced by bonds, debentures, notes
or other similar instruments; (c) all obligations to pay the deferred
purchase price of property or services, except trade accounts payable
arising in the ordinary course of business; (d) all Capitalized Lease
Obligations; (e) all obligations in respect of production payments,
proceeds production payments and similar financing arrangements; (f)
all reimbursement obligations and all letter of credit advances with
respect to letters of credit issued for the account of such Person,
including the Letter of Credit Liabilities; (g) surety bonds for
environmental purposes; (h) all obligations of the types described in
CLAUSES (a) through (g) of this definition (collectively, "ORDINARY
DEBT") of another Person secured by a Lien on any property of the
Person as to which Covered Debt is being determined, regardless of
whether such Ordinary Debt is assumed by such Person, and (i) all
Ordinary Debt of another Person guaranteed (but excluding the
obligations of the Company and the Restricted Subsidiaries arising
solely by virtue of their serving as general partner of SFEP) by such
Person; PROVIDED that Covered Debt shall not include Ordinary Debt or
any obligation of the types described in CLAUSES (h) or (i) of this
definition which is (1) non-recourse (either directly or contingently)
as to all members of the Combined Group and (2) secured only by assets
which are not Recognized Proved Reserves. 

     "CREDIT DOCUMENTS" shall mean this Agreement, all Applications,
all Letters of Credit, the Notice of Entire Agreement, the Amended and
Restated Revolving Credit Agreement and all instruments, certificates
and agreements now or hereafter executed or delivered to the Agent or
any Bank pursuant to any of the foregoing.

     "CURRENT DEBT" shall mean any obligation for borrowed money (and
any notes payable and drafts accepted representing obligations for
borrowed money) payable on demand or within a period of one year from
the date of the creation thereof and any Guaranty with respect to
Current Debt (of the kind otherwise described in this definition) of
another Person; PROVIDED that any obligation shall be treated as
Funded Debt, regardless of this term, if such obligation is renewable
pursuant to the terms thereof or of a revolving credit or similar
agreement effective for more than one year after the date of the
creation of such obligation, or may be payable out 

                                 -11-


of the proceeds of a similar obligation pursuant to the terms of such
obligation or of any such agreement.

     "DEBT" shall mean Funded Debt and/or Current Debt, as the case
may be.

     "DEBT SERVICE" shall mean, for any Calculation Period, the total
of principal payments in respect of Covered Debt of the Person as to
which Debt Service is to be determined and the total of interest
payments (using, with respect to interest to accrue, the interest
rates set forth in the most recent Approved Assumptions for such
Covered Debt not bearing interest at a fixed rate; if some or all of
such Covered Debt bears interest at one or more fixed rates as of the
date of determination of Debt Service but such Covered Debt will not
bear interest at such fixed rate or rates to the end of such
Calculation Period, then interest payments in respect of Debt Service
with respect to such Covered Debt shall be calculated on the basis of
such fixed rate or rates for such time as the same shall be applicable
to such Covered Debt, and then at the interest rates set forth in the
most recent Approved Assumptions) in respect of Covered Debt of such
Person, in each case paid and scheduled to be paid during such
Calculation Period; PROVIDED that the principal amount of any Covered
Debt of such Person which by its terms matures on a date within such
Calculation Period but which may reasonably be expected to be
reborrowed in a Rollover on such date shall not be deemed, for
purposes of this definition, to be scheduled to be paid on such date;
and PROVIDED FURTHER that for purposes of this definition it shall be
assumed (to the extent relevant with respect to such Person) that (a)
Letters of Credit will be fully drawn upon their respective expiry
dates; (b) other letters of credit issued for the account of such
Person will not be drawn; (c) surety bonds for environmental purposes
issued on behalf of such Person will not be drawn, and (d) the
reimbursement obligations of the Company under this Agreement shall be
satisfied immediately and considered as a "principal payment" for
purposes of this definition.

     "DEFAULT" shall mean an Event of Default or an event which with
notice or lapse of time or both would, unless cured or waived, become
an Event of Default.

     "DEFEASED" shall mean, with respect to any amount of Designated
Debt, that the Company (a) shall have given to the holders of such
Designated Debt irrevocable notice of the repayment of such Designated
Debt, (b) shall have deposited with the trustee or an independent
escrow or paying agent as trust funds the entire amount sufficient to
pay at the date fixed for such repayment all of such Designated Debt,
including principal, premium if any, and interest due or to become due
to such date of repayment, such amount to be invested only in readily
marketable direct full faith and credit obligations of the United
States of America having maturities of not more than one year from
date of issue, and (c) 

                                 -12-


shall have paid or caused to be paid all other sums payable by the
Company in connection with such Designated Debt.

     "DESIGNATED DEBT" shall mean the indebtedness of the Company
described on SCHEDULE X.  SCHEDULE X sets forth, for each range of
Qualifying Amounts of Junior Securities, the maturities of Covered
Debt which must be repaid in order for the Facility A Maximum Amount
and the Preliminary Available Amount to reach the levels set forth in
EXHIBITS C.

     "EBITD" shall mean for any period Consolidated Net Earnings for
such period, plus the aggregate amounts deducted in determining
Consolidated Net Earnings in respect of (a) all provisions for any
federal, state or other income taxes made by the Company and the
Restricted Subsidiaries during such period; (b) Fixed Charges of the
Company and the Restricted Subsidiaries during such period; (c)
depreciation, depletion and amortization charges of the Company and
the Restricted Subsidiaries for such period, and (d) all other non-
cash charges of the Company and the Restricted Subsidiaries for such
period, all determined in accordance with GAAP.

     "ELIGIBLE ASSIGNEE" shall mean (a) a commercial bank having total
assets in excess of $1,000,000,000 or (b) a finance company, insurance
company, other financial institution or fund, acceptable to the Agent
and the Company, which is regularly engaged in making, purchasing or
investing in loans and having total assets in excess of
$1,000,000,000.

     "ENGINEERING SHORTFALL" shall mean the amount, if any, by which
the sum of (a) the aggregate outstanding principal balance of the
Facility B Notes PLUS (b) the aggregate Letter of Credit Liabilities
shall exceed the Available Amount at the time of any delivery of (and
as determined in accordance with) an Independent Engineering Report
and its related Coverage Report.  The effects of an Engineering
Shortfall are described, among other places herein, in
SECTIONS 2.2(c), 7.2(a), 7.2(f), 9.9, and 10.1(d) AND (e).  An
Engineering Shortfall shall continue until cured by presentation of a
new Coverage Report demonstrating that the sum of (a) and (b) is equal
to or less than the Available Amount then in effect.

     "ENVIRONMENTAL CLAIM" shall mean any claim, demand, action, cause
of action, suit, judgment, governmental or private investigation
relating to remediation or compliance with Applicable Environmental
Laws, proceeding or lien, whether threatened, sought, brought or
imposed, that seeks to recover costs, damages, punitive damages,
expenses, fines, criminal liability, judgments, response costs,
investigative and monitoring costs, abatement costs, attorney's fees,
expert's fees or consultant's fees, or seeks to impose liability
regarding the Company or any of its Subsidiaries, or any of their
sites or properties for violations of Applicable Environmental Laws or
for pollution, contamination, investigation, preservation, protection,
remediation or clean up of the air, 

                                 -13-


surface water, ground water, soil or wetlands, or otherwise in
relation to the use, storage, generation, release, handling or
disposal of materials and substances that are regulated by or subject
to Applicable Environmental Laws.

     "ERISA" shall mean the Employee Retirement Income Security Act of
1974, as amended from time to time, and all rules, regulations and
interpretations by the Internal Revenue Service or the Department of
Labor thereunder.

     "ERISA AFFILIATE" shall mean any trade or business (whether or
not incorporated) which on and after December 5, 1990 is under common
control with the Company within the meaning of the regulations under
Section 414 of the Code.

     "EVENT OF DEFAULT" shall have the meaning assigned to such term
in SECTION 10. 

     "EXISTING LETTERS OF CREDIT" shall mean the letters of credit
listed on SCHEDULE VIII.

     "EXISTING PRIORITY DEBT" at any time shall mean, to the extent
that it is otherwise Priority Debt, an amount equal to the sum of (a)
the Merger Debt at such time, (b) the outstanding principal amount of
Debt under the Springing Lien Agreement at such time, and (c) the
outstanding principal amount of Debt under those certain Credit
Agreements of Petrolera Santa Fe S.A., dated as of June 25, 1991 and
April 28, 1992, at such time.

     "FACILITY B COMMITMENT" shall have the meaning ascribed to such
term in the Amended and Restated Revolving Credit Agreement.

     "FACILITY B LOAN" shall mean a Loan made pursuant to SECTION
2.1(b) of the Amended and Restated Revolving Credit Agreement.

     "FACILITY B NOTES" shall mean the Facility B Notes of the Company
under (and as defined in) the Amended and Restated Revolving Credit
Agreement.

     "FDIC" shall mean the Federal Deposit Insurance Corporation or
any entity succeeding to any or all of its functions.     

     "FED FUNDS RATE" shall mean, for any period, a fluctuating
interest rate per annum equal for each day during such period to the
weighted average of the rates on overnight federal funds transactions
with members of the Federal Reserve System arranged by federal funds
brokers, as published on the succeeding 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 for the day
of such transactions received by the Agent from three federal funds
brokers of recognized standing selected by it. 

                                 -14-


     "FIXED CHARGES" shall mean (without duplication) for any period
the sum of interest expense in respect of all Debt of the Person for
which the determination is made (calculated, in the case of Debt which
bears interest at a floating rate, at the rate in effect at the time
of calculation), including imputed interest expense in respect of
Capitalized Lease Obligations.

     "FUNDED DEBT" shall mean and include, without duplication, any
obligation (including the current maturities thereof)

     (a)  payable more than one year from the date of creation thereof
(1) for borrowed money; (2) evidenced by bonds, debentures, notes or
reimbursement obligations in respect of letters of credit or other
similar instruments (other than letters of credit and surety bonds
relating to trade obligations incurred in the ordinary course of
business and includable, under GAAP, in current liabilities on a
balance sheet or in the notes relating thereto); (3) for the payment
of the deferred purchase price of property or services, except trade
accounts payable arising in the ordinary course of business; (4)
constituting Capitalized Lease Obligations; (5) in respect of
production payments, proceeds production payments or similar financing
arrangements; (6) which is, under GAAP, shown on a balance sheet
(after giving effect, in the case of the balance sheet of the Company
or a Restricted Subsidiary, to the eliminating entries, if any, for
the Unrestricted Subsidiaries as a group and the Special Subsidiary)
as long-term debt (excluding provisions for deferred income taxes,
unfunded pension obligations, unfunded liabilities for other post-
employment benefits and other reserves or provisions to the extent
that such reserves or provisions do not constitute an obligation), or
(7) for any item described in any of the foregoing CLAUSES (1) through
(6) which is secured by any Lien on property owned by the Company or
any Restricted Subsidiary, whether or not the obligations secured
thereby shall have been assumed by the Company or such Restricted
Subsidiary; or

     (b)  payable more than one year from the date of creation
thereof, which under GAAP is shown on the balance sheet as a long-term
liability (EXCLUDING provisions for deferred income taxes, unfunded
pension obligations, unfunded liabilities for other post-employment
benefits and other reserves or provisions to the extent that such
reserves or provisions do not constitute an obligation); or

     (c)  constituting a Guaranty with respect to Funded Debt (of the
kind otherwise described in CLAUSES (a) and (b) of this definition) of
another Person, including any obligation by the Company or a
Restricted Subsidiary for Funded Debt of SFEP or any other Person,
regardless of the percentage of equity interest owned therein by the
Company or a Restricted Subsidiary, by virtue of its capacity as a
general partner of SFEP or such other Person.

                                 -15-
     
     "GAAP" shall mean, as to a particular Person, such accounting
practice as, in the opinion of the independent accountants of
recognized national standing regularly retained by such Person and
acceptable to the Agent, conforms at the time to generally accepted
accounting principles, consistently applied.  Generally accepted
accounting principles means those principles and practices which are
(a) recognized as such by the Financial Accounting Standards Board;
(b) applied for all periods after the date hereof in a manner
consistent with the manner in which such principles and practices were
applied to the financial statements of the relevant Person dated
December 31, 1989 and for the period then ended, and (c) consistently
applied for all periods after the date hereof so as to reflect
properly the financial condition and results of operations of such
Person.

     "GOVERNMENTAL AUTHORITY" shall mean any sovereign governmental
authority, the United States of America, any State of the United
States and any political subdivision of any of the foregoing, and any
agency, instrumentality, department, commission, board, bureau,
central bank, authority, court or other tribunal, in each case whether
executive, legislative, judicial, regulatory or administrative, having
jurisdiction over the Company, any of the Company's Subsidiaries, any
of their respective property, the Agent, the Co-Agent or any Bank.

     "GUARANTY" shall mean and include, without limitation, any
obligation of the Company or a Restricted Subsidiary

     (a)  constituting a guaranty, endorsement (other than an
endorsement of a negotiable instrument for collection in the ordinary
course of business) or other contingent liability (whether direct or
indirect) in connection with the obligations, stock or dividends of
any Person (other than the Company or a Restricted Subsidiary);

     (b)  payable under any contract (other than the Tax
Indemnification Agreement and any other tax indemnification or sharing
agreement) providing for the making of loans, advances or capital
contributions to any Person (other than the Company or a Restricted
Subsidiary), or for the purchase of any property from any Person, in
each case in order primarily to enable such Person to maintain working
capital, net worth or any other balance sheet condition or to pay
debts, dividends or expenses;

     (c)  payable under any contract for the purchase of materials,
supplies or other property or services (other than any natural gas
transportation contract or any electrical, water supply, steam
purchase or other utility supply contract) if such contract (or any
related document) requires that payment for such materials, supplies
or other property or services shall be made regardless of whether or
not delivery of such materials, supplies or other property or services
is ever made or tendered; PROVIDED that the 

                                 -16-


exceptions contained in this CLAUSE (c) shall not apply to any
contract for the purchase or transportation of natural gas where
payment is required regardless of whether the delivery of such natural
gas is ever made or tendered, unless at the time such contract is
entered into the aggregate of payments under such contract and all
such existing contracts would not exceed $20,000,000 in any calendar
year based on existing rates and automatic escalations in such rates
under such contracts;

     (d)  payable under any contract to rent or lease (as lessee) any
real or personal property (other than any oil and gas leases) if such
contract (or any related document) provides that the obligation to
make payments thereunder is absolute and unconditional under
conditions not customarily found in commercial leases then in general
use or requires that the lessee purchase or otherwise acquire
securities or obligations of the lessor; or

     (e)  payable under any other contract which, in economic effect,
is substantially equivalent to a guarantee for any payment or
performance of an obligation of a Person other than the Company or a
Restricted Subsidiary.

     "HADSON" shall mean Hadson Corporation, a Delaware corporation,
and any successor corporation thereto.

     "HADSON STOCK" shall mean, to the extent held continuously by the
Company or any of its Restricted Subsidiaries after the merger of SFER
Pipeline, Inc. into the Company, (a) any of the 2,080,000 shares of
the Senior Cumulative Preferred Stock, Series A, par value $.01 per
share, of Hadson and the 10,395,665 shares of the common stock, par
value $.01 per share, of Hadson, acquired by the Company or any of its
Subsidiaries on or before January 31, 1994, (b) any stock acquired by
virtue of one or more stock splits or recapitalizations involving such
common stock or Senior Cumulative Preferred Stock and not involving
any additional economic consideration on the part of the Company or
any of its Subsidiaries, and (c) any dividend paid on such common
stock or Senior Cumulative Preferred Stock solely in the capital stock
of Hadson.

     "HIGHEST LAWFUL RATE" shall mean, on any day, the maximum
nonusurious rate of interest permitted for that day by whichever of
applicable federal or Texas law permits the higher interest rate,
stated as a rate per annum.  On each day, if any, that Chapter One
establishes the Highest Lawful Rate, the Highest Lawful Rate shall be
the "indicated rate ceiling" (as defined in Chapter One) for that day.

     "HYDROCARBONS" shall mean crude oil, condensate, natural gas,
natural gas liquids and associated substances.

                                 -17-


     "INDEPENDENT ENGINEERING REPORT" shall mean a report prepared by
an Independent Petroleum Engineer which sets forth the gross and net
volume of Hydrocarbons projected to be produced from the Petroleum
Properties, by calendar years, for the remaining economic life of the
Petroleum Properties.  The Petroleum Properties of the Special
Subsidiary shall be segregated from the Petroleum Properties of the
other members of the Combined Group, and the Adobe Properties shall be
separately identified.  Each Independent Engineering Report shall also
contain a list of Petroleum Properties of the members of the Combined
Group and indicate the Net Oil and Gas Income for each calendar year
attributable thereto, all in reasonable detail.  Each such report
shall identify which of the Petroleum Properties covered thereby are
"proved developed producing", "proved developed non-producing" and
"proved undeveloped" (as defined in the "Definitions for Oil and Gas
Reserves" as published by the Society of Petroleum Engineers).  Each
such report shall be prepared in accordance with established criteria
generally accepted in the oil and gas industry and standards
customarily used by independent petroleum engineers well regarded in
the industry in making reserve determinations or appraisals, and shall
be based on Approved Assumptions and such other assumptions, estimates
and projections as are fully disclosed in such Independent Engineering
Report.

     "INDEPENDENT PETROLEUM ENGINEER" shall mean Ryder Scott Company
Petroleum Engineers or another independent petroleum engineer retained
by the Company acceptable to the Required Banks.     

     "INTEREST RATE PROTECTION AGREEMENTS" shall mean an interest rate
swap agreement, interest rate cap agreement or other similar
arrangement which satisfies all of the following requirements:  (a) a
member of the Combined Group is a party to such agreement; (b) the
Company has given evidence (satisfactory to the Agent) of such
agreement to the Agent; (c) the terms and parties to such agreement,
taking into account all similar agreements to which members of the
Combined Group are parties, are satisfactory to the Required Banks;
and (d) such agreement is in full force and effect and has not been
unwound.  

     "INVESTMENT" shall mean any purchase or other acquisition of the
stock, obligations or securities of, or any interest in, or any
capital contribution, loan or advance to, or any Guaranty in respect
of the obligations of (but excluding the obligations of the Company
and the Restricted Subsidiaries arising solely by virtue of their
serving as general partner of SFEP) any Person, but in any event shall
include as an investment in any Person the amount of all Debt owed by
such Person, and all accounts receivable from such Person which are
not current assets or did not arise from sales to such Person in the
ordinary course of business.  As used herein, any capital contribution
of assets by the Company or any Restricted Subsidiary shall be valued
at the book value of such assets as reflected in the consolidated
financial statements of the Company 

                                 -18-


and the Restricted Subsidiaries as at the end of the quarter ending
immediately prior to such contribution.

     "JUNIOR SECURITIES" shall mean (a) equity (including preferred
stock but excluding any equity which the holder thereof may have any
right to put back to the Company for cash and excluding any equity
mandatorily redeemable for cash) of the Company or (b) indebtedness of
the Company which in the sole discretion of the Required Banks
satisfies all of the following requirements: (1) such indebtedness
shall be subordinated by writing in Proper Form in right of payment to
all existing and future indebtedness of the Company under the Credit
Documents, as renewed, extended, amended, modified, supplemented and
increased from time to time; (2) such indebtedness shall be unsecured;
(3) no principal of such indebtedness shall be scheduled to be due
before January 31, 1999; (4) such indebtedness shall not be governed
by any covenant or event of default more restrictive than those set
forth in the Credit Documents; (5) the provisions applicable to such
indebtedness with respect to a change in the control of the Company
and the sale of assets by any member of the Combined Group shall be
not more restrictive than those set forth in the Credit Documents; (6)
such indebtedness shall be subject to Blockage for periods aggregating
up to 180 days within any 365 day period; (7) the holders of such
indebtedness shall be required to give the Agent at least five days'
prior written notice of any intended acceleration of such indebtedness
(which the Agent shall transmit to each Bank promptly upon receipt);
and (8) the holders of such indebtedness shall not have the right to
declare a default with respect to, or to accelerate, any of such
indebtedness in the event of a default on other indebtedness of any
member of the Combined Group except (i) at the scheduled maturity of
such other indebtedness or (ii) in the event that principal of such
other indebtedness in excess of $25,000,000 shall be duly accelerated. 
For purposes of this definition, "BLOCKAGE" shall mean, upon the
occurrence of a default and so long as it is continuing, the
prohibition of the payment (including principal of, interest or
premium on or sinking fund requirements) of any indebtedness or
obligations of the Company consisting of or arising in connection with
any Junior Securities. For purposes of this definition, "PAYMENT"
shall include any deposit of property to defease any JuniorSecurities.

     "LEGAL REQUIREMENT" shall mean any applicable law, statute,
ordinance, decree, requirement, order, judgment, rule, regulation (or
official interpretation by any Governmental Authority of any of the
foregoing) of, and the terms of any license or permit issued by, any
Governmental Authority, in each case as now or hereafter in effect.

     "LETTER OF CREDIT" shall have the meaning ascribed to such term
in SECTION 2.1(a).

                                 -19-


     "LETTER OF CREDIT FEE" shall mean with respect to any Letter of
Credit issued pursuant hereto a fee equal to 1% per annum of the face
amount of each such Letter of Credit issued; PROVIDED, that each
Letter of Credit Fee shall in no event be less than $600.

     "LETTER OF CREDIT LIABILITIES" shall mean, at any time and in
respect of Letters of Credit under this Agreement, the sum of (i) the
aggregate amounts then or thereafter available for drawings under such
outstanding Letters of Credit PLUS (without duplication) (ii) the
aggregate unpaid amount of all Reimbursement Obligations at the time
due and payable in respect of previous drawings made under such
Letters of Credit.

     "LIEN" shall mean any mortgage, pledge, security interest,
encumbrance, lien or charge of any kind (including any agreement to
give any of the foregoing), any conditional sale or other title
retention agreement, any lease in the nature thereof, and the filing
of, or agreement to give, any financing statement under the Uniform
Commercial Code of any jurisdiction or any other type of preferential
arrangement.

     "LOANS" shall mean the loans and Rollover of loans provided for
by the Amended and Restated Revolving Credit Agreement.

     "MATERIAL ADVERSE CHANGE" shall mean an occurrence of whatever
nature (including any adverse determination in any litigation,
arbitration or governmental investigation or proceeding), which after
taking into account actual insurance coverage and effective
indemnification with respect to such occurrence, (a) has a material
adverse effect on the financial condition, business, operations or
properties of the Company and its Subsidiaries taken as a whole and
(b) impairs in any material respect either (1) the ability of the
Company to perform any of its obligations under the Credit Documents
or (2) the ability of the Banks to enforce any of such obligations or
any of their remedies under the Credit Documents. 

     "MERGER" shall mean the merger of Adobe into the Company, which
occurred May 19, 1992.

     "MERGER DEBT", for purposes of the definition of "Existing
Priority Debt" used in  SECTION 9.7(b)(3) and 9.7(b)(4) of this
Agreement, shall mean at any time, with respect to the Debt of the
Company incurred as of May 20, 1992, in connection with the Merger, as
such Debt may have been or hereafter may be renewed, extended or
otherwise modified, the maximum principal amount of such Debt that can
be outstanding at such time, but only to the extent that such amount
is equal to or less than (a) $90,000,000, at any time during the
period from and including December 31, 1993, to and including December
30, 1994, (b) $72,000,000, at any time during the period from and
including December 31, 1994, to and including December 30, 1995, (c)
$54,000,000, at any time during the period from and including December
31, 1995, to and including December 30, 1996,
                                  -20-


(d) $36,000,000, at any time during the period from and including
December 31, 1996, to and including December 30, 1997, (e)
$18,000,000, at any time during the period from and including December
31, 1997, to and including December 30, 1998, and (f) $0.00 at any
time thereafter.

     "MLP INVESTMENT" shall mean, at any time, the lesser of (a) the
book value of the Investment of the Company and the Restricted
Subsidiaries in the Special Subsidiary, as determined from the most
recent consolidated balance sheet of the Company or (b) the product of
(1) the average closing price of the publicly traded limited partner
interests of the Special Subsidiary for the 30 days immediately
preceding the date upon which such determination is made multiplied by
(2) the total limited partner interests in the Special Subsidiary
owned by the Company and the Restricted Subsidiaries on the date such
determination was made.

     "MOST RECENT ENGINEERING REPORT" shall mean, as of any date of
determination, (a) until the first Independent Engineering Report is
delivered pursuant to SECTION 9.1 or SECTION 2.2(d), the Independent
Engineering Report of Ryder Scott Company Petroleum Engineers dated
February 3, 1994; (b) thereafter, the most recent Independent
Engineering Report delivered pursuant to either SECTION 9.1 or SECTION
2.2(d) on or prior to such date of determination.

     "NET OIL AND GAS INCOME" shall mean, for any calendar year (or
portion thereof) and for any Person, (a) an amount (or, with respect
to any portion of a calendar year, PRO RATA in accordance with the
number of days in such portion of such calendar year) of projected
gross revenues (based on the prices set forth in the Approved
Assumptions) from the sale of Hydrocarbons produced from the
Recognized Proved Reserves to be received, subject to no entitlement
of any other Person but including appropriate adjustments for over-
and under-produced status, by such Person during such calendar year as
set forth in the Most Recent Engineering Report LESS (b) an amount
(or, with respect to any portion of a calendar year, PRO RATA in
accordance with the number of days in such portion of such calendar
year) of projected royalties and windfall profit, production, ad
valorem, severance and all other similar taxes and operating and
capital expenditures required to be incurred during such calendar year
in order to generate such gross revenues (but not including general
and administrative expenses or principal and interest payable with
respect to Debt), as set forth in the Most Recent Engineering Report.

     "NOTICE OF ENTIRE AGREEMENT" shall mean that certain Notice of
Entire Agreement, DTPA Waiver and Release of Claims of even date
herewith between the Company and the Agent.

                                 -21-


     "OBLIGATIONS" shall mean, as at any date of determination
thereof, the sum of (a) the aggregate principal amount of Loans out-
standing under the Amended and Restated Revolving Credit Agreement
PLUS (b) the aggregate amount of the Reimbursement Obligations.

     "OFFICER'S CERTIFICATE" shall mean a certificate signed in the
name of the Company by its President, one of its Vice Presidents or
its Treasurer.

     "OPTIONAL RESERVE REPORT" shall mean the Independent Engineering
Report permitted by SECTION 2.2(d).     

     "ORGANIZATIONAL DOCUMENTS" shall mean, with respect to a
corporation, the certificate of incorporation, articles of
incorporation and bylaws of such corporation; with respect to a
partnership or a limited partnership, the partnership agreement
establishing such partnership; with respect to a joint venture, the
joint venture agreement establishing such joint venture; and with
respect to a trust, the instrument establishing such trust; in each
case including any and all modifications thereof as of the date of the
Credit Document referring to such Organizational Document.

     "PBGC" shall mean the Pension Benefit Guaranty Corporation or any
entity succeeding to any or all of its functions under ERISA.

     "PERSON" shall mean and include an individual or legal entity in
the form of a partnership, a limited liability company, a joint
venture, a corporation, a trust, an unincorporated organization or a
government or any department or agency thereof.  The term "Person"
shall not, however, mean and include an arrangement that is not a
separate legal entity such as the legal arrangement between two or
more parties owning interests in the same property or unit.  

     "PETROLEUM PROPERTIES" shall mean, at any time and with respect
to any Person, all Recognized Proved Reserves which are (a) owned by
such Person at such time free and clear of any Lien (other than Liens
permitted by SECTION 9.7) and (b) covered in the Most Recent
Engineering Report.

     "PLAN" shall mean an employee benefit plan which is covered by
ERISA which is either (a) maintained by the Company or any ERISA
Affiliate for employees of the Company or such ERISA Affiliate or (b)
a multiemployer plan as defined in Section 4001(a)(3) of ERISA to
which (i) the Company, (ii) any ERISA Affiliate or (iii) any trade or
business which was previously under common control with the Company
within the meaning of Section 414 of the Code (but only with respect
to such period of common control with the Company), has an obligation
to make contributions (or with respect to (iii) above, had an
obligation to make contributions during any portion

                                 -22-


of time that the limitations period under Section 4301(f) of ERISA with
respect to such obligation has not expired).

     "POST-DEFAULT RATE" shall mean, in respect of any principal of
any Reimbursement Obligation or any other amount payable by the
Company under any Credit Document which is not paid when due (whether
at stated maturity, by acceleration, or otherwise), a rate per annum
on each day during the period commencing on the due date until such
amount is paid in full equal to the lesser of (a) the Alternate Base
Rate as in effect for that day PLUS the Applicable Margin in effect
for that day PLUS 2% or (b) the Highest Lawful Rate for that day.

     "PRELIMINARY AVAILABLE AMOUNT" shall mean, on any day occurring
during the respective Applicable Periods set forth on EXHIBIT C, the
amount set forth for such Applicable Period in the applicable table in
EXHIBIT C (as the same may be reduced from time to time pursuant to
SECTION 2.3).  The applicable table shall be determined according to
the aggregate Qualifying Amount of Junior Securities issued by the
Company as of the most recent Achievement Date, but to qualify for a
particular table (other than Table Five), the Company must have repaid
or Defeased, on or before such Achievement Date, all Designated Debt
for such aggregate Qualifying Amount set forth on SCHEDULE X. 

     "PRICE PROTECTION AGREEMENT" shall mean a product price
protection agreement which satisfies all of the following
requirements:  (a) a member of the Combined Group is a party to such
agreement; (b) the Company has given evidence (satisfactory to the
Agent) of such agreement to the Agent; (c) the terms and parties to
such agreement, taking into account all similar agreements to which
members of the Combined Group are parties, are satisfactory to the
Required Banks; and (d) such agreement is in full force and effect and
has not been unwound.  The agreements described on SCHEDULE III are
Price Protection Agreements for purposes of this Agreement as of the
date hereof.

     "PRIME RATE" shall mean, as of a particular date, the prime rate
most recently announced by TCB and thereafter entered in the minutes
of TCB's Loan and Discount Committee, automatically fluctuating upward
and downward with and at the time specified in each such announcement
without special notice to the Company or any other Person, which prime
rate may not necessarily represent the lowest or best rate actually
charged to a customer. 

     "PRINCIPAL OFFICE" shall mean the principal banking building of
the Agent, presently located at 712 Main Street, Houston, Harris
County, Texas 77002.

     "PRIORITY DEBT" at any time shall mean an amount equal to the sum
of (without duplication) the amount of all Special Debt outstanding at
such time and the amount of all Debt of the Company 

                                 -23-


and its Restricted Subsidiaries outstanding at such time that is
secured by one or more Liens permitted under CLAUSE (4), (5), (6),
(7), (8), (9), (10), (11), (12) or (13) of SECTION 9.7(a).

     "PROJECTED G & A EXPENSE" shall mean, for any Person, the
appropriate projected annual levels of general and administrative
expense and district overhead to be used in the calculation of CFADS
of such Person, as mutually agreed among the Agent, the Co-Agents and
the Company as soon as practical after the delivery of the Most Recent
Engineering Report.

     "PROJECTED INCOME TAX EXPENSE" shall mean, for any Person, the
appropriate projected annual levels of income tax expense to be used
in the calculation of CFADS of such Person, as determined by the Agent
after consultation with the Company and based on such Person's current
tax position projected into the future and the Most Recent Engineering
Report; the Agent will give written notice of the Projected Income Tax
Expense of each such Person to the Company as soon as practical after
the delivery of the Most Recent Engineering Report.

     "PROPER FORM" shall mean in form and substance satisfactory to
the Agent.

     "PROVED RESERVES" shall mean reserves of Hydrocarbons in place
which are estimated to be recoverable with reasonable certainty and
are consistent with the "Definitions for Oil and Gas Reserves" as
published by the Society of Petroleum Engineers.  

     "QUALIFYING AMOUNT" shall mean that amount of Junior Securities
which results in gross cash proceeds to the Company of not less than
the amounts specified herein.

     "QUALIFYING DATE" shall mean the first date prior to July 1,
1994, on which the Agent shall have received evidence satisfactory to
it in its sole discretion that both (a) Junior Securities in a
Qualifying Amount of at least $75,000,000 shall have been issued (such
issuance may be in one or more transactions on one or more dates) and
cash proceeds thereof shall have been received by the Company and (b)
all Designated Debt for the aggregate Qualifying Amount of Junior
Securities actually issued, as shown on SCHEDULE X, shall have been
repaid or Defeased.  The Qualifying Date must occur, if at all, before
July 1, 1994.

     "QUARTERLY DATES" shall mean the last day of each March, June,
September and December; PROVIDED that if any such date is not a
Business Day, the relevant Quarterly Date shall be the next succeeding
Business Day.

     "RECOGNIZED PROVED RESERVES" shall mean Proved Reserves if (a)
the designation of such Proved Reserves was by an Independent
Petroleum Engineer; (b) a member of the Combined Group owns such 
                                 -24-


Proved Reserves; (c) the estimates with respect to such Proved
Reserves were made on the basis of the most recent Approved
Assumptions, and (d) either (1) such Proved Reserves are located
onshore or offshore the United States or Canada or (2) the Required
Banks have consented to the inclusion of such Proved Reserves in the
Recognized Proved Reserves.

     "REGISTRATION STATEMENT" shall mean the Registration Statement on
Form S-4 filed by the Company with the Securities and Exchange
Commission and declared effective by the Commission on February 27,
1992, true and correct copies of which have been delivered to the
Banks.

     "REGULATION D" shall mean Regulation D of the Board as the same
may be amended or supplemented from time to time and any successor or
other regulation relating to reserve requirements.

     "REGULATORY CHANGE" shall mean, with respect to any Bank, any
change on or after the date of this Agreement in any Legal Requirement
(including Regulation D) or the adoption or making on or after such
date of any official interpretation, directive or request applying to
a class of banks including such Bank under any Legal Requirement
(whether or not having the force of law) by any Governmental Authority
charged with the interpretation or administration thereof.

     "REIMBURSEMENT OBLIGATIONS" shall mean, at any date, the
obligations of the Company then outstanding in respect of Letters of
Credit under this Agreement to reimburse the Banks for the amount paid
by such Banks in respect of any drawing under such Letters of Credit
or otherwise owing under this Agreement.

     "REQUIRED BANKS" shall mean Banks having equal to or greater than
66-2/3% of the Aggregate Commitment.

     "REQUIRED RATIOS" shall mean (a) an Annual Debt Service Coverage
Ratio of at least 1.15 to 1.00; (b) an Alternate Annual Debt Service
Coverage Ratio of at least 1.00 to 1.00; (c) a TLOR Coverage Ratio of
at least 1.50 to 1.00, and (d) an SLOR Coverage Ratio of at least 1.75
to 1.00.

     "REQUIRED RESERVE REPORT" shall mean each Independent Engineering
Report required to be provided pursuant to SECTION 9.1(g).

     "RESERVE VALUE" shall mean, as of any date and with respect to a
Person, the net present value (discounted at the discount rate set
forth in the most recent Approved Assumptions) of projected Net Oil
and Gas Income (calculated on the basis of the Most Recent Engineering
Report) attributable to the Petroleum Properties of such Person for
the period commencing on such date and ending at the end of the
economic life of such Petroleum Properties.  

                                 -25-


     "RESTRICTED INVESTMENT" shall mean any Investment other than:

     (a)  Investments in the Company or a Restricted Subsidiary or in
an entity which immediately after or concurrently with such Investment
will be a Restricted Subsidiary;

     (b)  Investments in the Special Subsidiary;

     (c)  readily marketable direct full faith and credit obligations
of the United States of America or any agency thereof or obligations
unconditionally guaranteed by the full faith and credit of the United
States of America or any agency thereof, due within three years of the
making of the Investment;

     (d)  readily marketable direct obligations of any State of the
United States of America or any political subdivision of any such
State having a credit rating of at least "Aa" by Moody's Investors
Service, Inc. ("MOODY'S") or "AA" by Standard & Poor's Corporation
("S&P"), in each case due within three years from the making of the
Investment;

     (e)  domestic and eurodollar certificates of deposit maturing
within one year from the making of the Investment issued by, deposits
in, Eurodollar deposits through, and banker's acceptances of,
commercial banks incorporated under the laws of the United States or
any State thereof, Canada, Japan or any Western European country, and
having combined capital, surplus and undivided profits of at least
$100,000,000;

     (f)  readily marketable commercial paper of any commercial bank
or corporation doing business and incorporated under the laws of the
United States of America or any State thereof having a credit rating
of at least "A-1" from S&P or at least "P-1" by Moody's, in each case
due within 270 days after the making of the Investment;

     (g)  money market investment programs which primarily invest in
the types of Investments described in CLAUSES (c) through (f) above
and which are classified as a current asset in accordance with GAAP
and which are administered by broker-dealers acceptable to the Agent;

     (h)  repurchase agreements with major dealers or banks, pursuant
to which physical delivery of the respective securities is required,
except for obligations of the U.S. Treasury to be delivered through
the Federal Reserve book entry system;

     (i)  travel and other like advances to officers and employees of
the Company or a Restricted Subsidiary in the ordinary course of
business;

     (j)  Investments in the Hadson Stock; or

                                 -26-


     (k)  Investments not described in CLAUSES (a) through (j) of this
definition in an aggregate principal amount not to exceed $10,000,000.

     "RESTRICTED SUBSIDIARY" shall mean each Subsidiary of the Company
designated as a Restricted Subsidiary on SCHEDULE I, together with any
Subsidiary hereafter created or acquired and, at the time of creation
or acquisition, not designated by the Board of Directors of the
Company as an Unrestricted Subsidiary.  Any Subsidiary of the Company
designated as an Unrestricted Subsidiary for purposes of this
Agreement may thereafter be designated a Restricted Subsidiary upon 30
days' prior written notice to the Banks if, at the time of such
designation and after giving effect thereto and to the concurrent
retirement of any Debt, (a) no Default shall have occurred and be
continuing; (b) such Subsidiary is organized under the laws of the
United States or any state thereof; (c) 80% or more of each class of
voting stock outstanding of such Subsidiary is owned by the Company or
a wholly owned Restricted Subsidiary, and (d) such Subsidiary could
incur at least $1.00 of additional Funded Debt without violation of
SECTION 9.7(b)(4).

     "ROLLOVER" shall mean any reborrowing from a lender of a loan
which is prepaid, or by its terms is due, to such lender on the date
of such reborrowing if the instrument or agreement governing such Debt
specifically contemplates the periodic prepayment or repayment and
simultaneous reborrowing of such loan, PROVIDED that such reborrowing
results in no net increase in the aggregate outstanding principal
balance of such loan; without limiting the generality of the
foregoing, "Rollover" shall include specifically the repayment of a
Loan at the end of the Interest Period applicable thereto and the
simultaneous reborrowing by the Company of a new Loan in the same
principal amount.

     "SALE AND LEASEBACK TRANSACTION" shall mean any arrangement in
which the Company or a Restricted Subsidiary shall sell its buildings,
equipment or surface real properties, which was acquired or occupied
by the Company or a Restricted Subsidiary for more than 180 days, and
within 180 days from the date of such sale, enter into a lease as
lessee of such buildings, equipment or surface real properties having
a term (including terms of renewal or extension at the option of the
lessor or the lessee, whether or not such option has been exercised)
expiring three or more years after the commencement of the initial
term.

     "SECURED DEBT" shall mean all Funded Debt that is secured by a
Lien permitted by SECTION 9.7(a)(13) on any property or assets of the
Company or any Restricted Subsidiary.

     "SENIOR INDEBTEDNESS" shall mean, without duplication, that part
of Covered Debt consisting of (a) all indebtedness and obligations
evidenced by, arising under or incurred in connection 
                                 -27-


with the Credit Documents and all renewals, extensions,
rearrangements, refundings, and modifications of any thereof; (b) all
other indebtedness and obligations of the Company, the Restricted
Subsidiaries or the Special Subsidiary, which is PARI PASSU with or
senior to the indebtedness and obligations described in CLAUSE (a)
above, (c) Capitalized Lease Obligations, and (d) all indebtedness and
obligations of the Company, the Restricted Subsidiaries or the Special
Subsidiary which is at the time of any determination of Senior
Indebtedness secured by any Lien.

     "SERIAL NOTE AGREEMENT" shall mean that certain Note Agreement
dated as of March 31, 1990, evidencing the issuance of Series A, B, C,
D, E, F and G Notes by the Company in the aggregate amount of
$365,000,000, as amended from time to time.

     "SFEP" shall mean, collectively, Santa Fe Energy Partners, L.P.
and Santa Fe Energy Operating Partners, L.P., each a Delaware limited
partnership.

     "SFP GROUP" shall mean Santa Fe Pacific Corporation and its
affiliated group of corporations which together constitute an
affiliated group of corporations within the meaning of Section 1504(a)
of the Code.

     "SLOR COVERAGE RATIO" shall mean, as of any date of
determination, the ratio of (a) the Combined Reserve Value to (b) all
Senior Indebtedness included in Combined Covered Debt, in each case as
of such date.

     "SPECIAL DEBT" shall mean the sum of (a) Attributable Debt; (b)
Secured Debt, and (c) Funded Debt of the Restricted Subsidiaries.

     "SPECIAL SUBSIDIARY" shall mean SFEP until (a) the Company
designates SFEP a Restricted Subsidiary pursuant to the terms of the
Serial Note Agreement or (b) the Company designates or continues to
designate SFEP as an Unrestricted Subsidiary subsequent to the
acquisition by the Company and the Restricted Subsidiaries of all of
the outstanding limited partnership interests in SFEP.

     "SPECIAL SUBSIDIARY PERCENTAGE" shall mean, as of any date, the
percentage ownership interest of the Company and the Restricted
Subsidiaries in the Special Subsidiary on such date.

     "SPECIAL SUBSIDIARY QUALIFYING CONDITIONS" shall mean all of the
following conditions: (a) the Company or a Restricted Subsidiary owns
more than 50% of the outstanding indicia of equity rights issued by
Santa Fe Energy Partners, L.P. and serves as the sole managing general
partner of Santa Fe Energy Partners, L.P.; (b) Santa Fe Energy
Partners, L.P. owns more than 50% of the outstanding indicia of equity
rights issued by Santa Fe Energy 

                                 -28-


Operating Partners, L.P.; (c) the Company or a Restricted Subsidiary
serves as the sole managing general partner of Santa Fe Energy
Operating Partners, L.P., and (d) both Santa Fe Energy Partners, L.P.
and Santa Fe Energy Operating Partners, L.P. are permitted (by
applicable law and applicable contract) to make distributions to their
partners.

     "SPIN-OFF" shall mean (a) the distribution, by dividend to the
stockholders of Santa Fe Pacific Corporation of the shares of capital
stock of the Company owned by Santa Fe Pacific Corporation, which
distribution was commenced on December 4, 1990, and (b) the
distribution by SFP Properties, Inc. to Santa Fe Pacific Corporation
of the capital stock of the Company that was made on December 27,
1989.

     "SPRINGING LIEN" shall mean the Liens on real property of SFEP
that come into existence at any time SFEP is a Restricted Subsidiary
pursuant to section 5.08(b) or 5.11 of the Credit Agreement (the
"SPRINGING LIEN AGREEMENT") dated as of June 30, 1987 among Santa Fe
Energy Operating Partners, L.P., the lenders listed on the signature
pages thereof and Morgan Guaranty Trust Company of New York, as the
Agent, as the same may be amended, PROVIDED that (a) the Debt under
the Springing Lien Agreement is not increased, extended or renewed and
(b) the Springing Lien Agreement is not amended in any way which would
increase the likelihood or potential circumstances under which such
Liens may arise; if either clause of the foregoing proviso is
violated, then such Liens shall not be "Springing Liens" for purposes
of this Agreement.

     "SUBSIDIARY" shall mean, with respect to any Person (the
"PARENT"), any corporation or entity, a majority of the shares of
voting stock (or in the case of an entity which is not a corporation,
of the equity interests that provide the power to manage or direct the
management of such entity) of which is at the time any determination
is being made, owned, directly or indirectly, by the parent.  

     "TAX ALLOCATION AGREEMENTS" shall mean those nine certain
agreements among the SFP Group, dated as of January 1, 1990 unless
otherwise specified in this definition and styled as follows: (a)
Agreement for the Allocation of the Combined Utah Franchise Tax
Liability; (b) Agreement for the Allocation of the Combined Oregon
Excise Tax Liability; (c) Agreement for the Allocation of the
Consolidated New Mexico Income Tax Liability; (d) Agreement for the
Allocation of the Combined Kansas Income Tax Liability; (e) Agreement
for the Allocation of the Combined Illinois Income Tax Liability; (f)
Agreement for the Allocation of the Combined California Franchise Tax
Liability; (g) Agreement for the Allocation of the Combined Arizona
Income Tax Liability; (h) Agreement Concerning Taxes, and (i)
Agreement for the Allocation of the Consolidated Federal Income Tax
Liability Among the Members of 

                                 -29-


the Santa Fe Southern Pacific Corporation Affiliated Group, dated as
of January 1, 1987.

     "TAX INDEMNIFICATION AGREEMENT" shall mean any agreement pursuant
to which the Company agrees to indemnify Santa Fe Pacific Corporation
or any member of the SFP Group from and against any and all federal,
state or local taxes, interest, penalties or additions to tax imposed
upon or incurred by the SFP Group or any member thereof as a result of
the Spin-Off to the extent specified in any such agreement.

     "TERMINATION DATE" shall mean the earliest of (a) the date the
Commitments are terminated pursuant to SECTION 10.1, (b) the date the
Commitments are terminated pursuant to SECTION 32.3, or (c) March 15,
1995.

     "TEXAS CREDIT CODE" shall mean Title 79, Revised Civil Statutes
of Texas, 1925, as amended.

     "TLOR COVERAGE RATIO" shall mean, as of any date of
determination, the ratio of (a) the Combined Reserve Value to (b) the
Combined Covered Debt (including obligations in connection with any
Junior Securities), in each case as of such date.

     "UNFUNDED LIABILITIES" shall mean, with respect to any Plan, at
any time, the amount (if any) by which (a) the present value of all
benefits under such Plan exceeds (b) the fair market value of all Plan
assets allocable to such benefits, all determined as of the then most
recent valuation date for such Plan (in accordance with GAAP), but
only to the extent that such excess represents a potential liability
of the Company or any ERISA Affiliate to the PBGC or a Plan under
Title IV of ERISA.

     "UNIMPAIRED CONSOLIDATED NET EARNINGS" shall mean, for any
period, the amount of Consolidated Net Earnings for such period except
that with respect to the oil and gas properties impairments taken by
the Company and its Restricted Subsidiaries in the fourth quarter of
1993 in the amount of up to $100 million as reflected in the Company's
consolidated financial statements for the year ended December 31,
1993:

          (a)  for any calculation of "Unimpaired Consolidated Net
     Earnings" for any fiscal period of the Company and its Restricted
     Subsidiaries ending on or after December 31, 1993, the net
     earnings of the Company and its Restricted Subsidiaries shall not     
     be reduced by the amount of such oil and gas properties
     impairments; and

          (b)  for any such calculation for any fiscal period of the
     Company and its Restricted Subsidiaries ending on or after
     December 31, 1993, the depreciation, depletion and amortization
     expenses of the Company and its Restricted 

                                 -30-


     Subsidiaries shall be calculated on a pro forma basis as if such
     oil and gas properties impairments had never occurred.

     "UNRESTRICTED SUBSIDIARY" shall mean each Subsidiary of the
Company designated as an Unrestricted Subsidiary on SCHEDULE I,
together with any Subsidiary of the Company which is hereafter
designated by the Board of Directors of the Company as an Unrestricted
Subsidiary.  Unless designated as a Restricted Subsidiary after the
date hereof, SFEP shall be treated hereunder as an Unrestricted
Subsidiary except as SFEP is otherwise treated hereunder as a Special
Subsidiary.  Any Subsidiary may be designated an Unrestricted
Subsidiary upon 30 days' prior written notice to the Banks if, at the
time of such designation and after giving effect thereto and to the
concurrent retirement of any Debt, (a) no Default shall have occurred
and be continuing; (b) such Subsidiary does not own, directly or
indirectly, any Funded Debt or capital stock of the Company or a
Restricted Subsidiary, and (c) the Company could incur at least $1.00
of additional Funded Debt without violation of SECTION 9.7(b)(3).

     "UNUSED COMMITMENT" shall mean, on any date, the difference of
(a) the Aggregate Commitment minus (b) the Letter of Credit
Liabilities, all determined on such date.

     1.2  ACCOUNTING TERMS AND DETERMINATIONS.  Except where
specifically otherwise provided:

     (a)  The symbol "$" and the word "dollars" shall mean lawful
money of the United States of America.

     (b)  For purposes of SECTIONS 9.6 and 9.7 and the definitions
used solely therein, any accounting term not otherwise defined shall
have the meaning ascribed to it under GAAP.  For all other purposes
any accounting term not otherwise defined shall have the meaning
ascribed to it under GAAP.

     (c)  Unless otherwise expressly provided, any accounting concept
and all financial covenants shall be determined on a consolidated
basis, and financial measurements shall be computed without
duplication.

     (d)  Wherever the term "including" or any of its correlatives
appears in the Credit Documents, it shall be read as if it were
written "including (by way of example and without limiting the
generality of the subject or concept referred to)".

     (e)  Wherever the word "herein" or "hereof" is used in any Credit
Document, it is a reference to that entire Credit Document and not
just to the subdivision of it in which the word is used.

     (f)  References in any Credit Document to Section numbers are
references to the Sections of such Credit Document.

                                 -31-
     
     (g)  References in any Credit Document to Exhibits, Schedules,
Annexes and Appendices are to the Exhibits, Schedules, Annexes and
Appendices to such Credit Document, and they shall be deemed
incorporated into such Credit Document by reference.

     (h)  Any term defined in the Credit Documents which refers to a
particular agreement, instrument or document shall also mean, refer to
and include all modifications, amendments, supplements, restatements,
renewals, extensions and substitutions of the same; PROVIDED that
nothing in this subsection shall be construed to authorize any such
modification, amendment, supplement, restatement, renewal, extension
or substitution except as may be permitted by other provisions of the
Credit Documents.

     (i)  All times of day used in the Credit Documents mean local
time in Houston, Texas.

     (j)  Defined terms may be used in the singular or plural, as the
context requires.

     Section 2.  COMMITMENTS.

     2.1  LETTERS OF CREDIT.  (a)  COMMITMENTS.  Subject to the terms
and conditions of this Agreement, the Agent agrees, upon receipt by
Agent of an Application therefor, to issue, and each Bank severally
agrees to purchase from the Agent a participation in (according to
such Bank's Commitment Percentage), letters of credit containing such
provisions not inconsistent with the terms of this Agreement as the
Company may reasonably request and such provisions not inconsistent
with the terms of this Agreement as the Banks may reasonably require
(together with the Existing Letters of Credit, the "LETTERS OF
CREDIT") for the account of the Company and on behalf of the Company,
or for the joint and several account of and on behalf of the Company
and one or more of its Subsidiaries, as follows.  From time to time on
or after the conditions herein set forth to issue such Letters of
Credit have been satisfied, and prior to the Termination Date, the
Agent shall issue and/or may have outstanding Letters of Credit under
this SECTION 2.1 in an aggregate principal amount at any one time
outstanding (including all Letter of Credit Liabilities at such time)
up to but not exceeding the lesser of (1) $15,000,000 (as adjusted
downward from time to time in accordance herewith) or (2) the lesser
of (I) the Available Amount and (II) the aggregate Facility B
Commitments less (in each case of (I) and (II)) the aggregate unpaid
principal balance of the Facility B Notes; PROVIDED, that the
aggregate Letter of Credit Liabilities at any one time outstanding
together with the aggregate principal amount of Facility B Loans at
any time outstanding shall never exceed the Available Amount then in
effect and PROVIDED, that anything to the contrary in this Agreement
notwithstanding, the Agent shall have no obligation to issue any
Letter of Credit on or after the Termination Date.  Upon the date of
the issuance of a Letter of Credit on or after the date hereof, 

                                 -32-


the Agent shall be deemed, without further action by any party hereto,
to have sold to each Bank, and each Bank shall be deemed, without
further action by any party hereto, to have purchased from the Agent,
a participation, to the extent of such Bank's Commitment Percentage,
in such Letter of Credit and the related Letter of Credit Liabilities. 
No Letter of Credit issued pursuant to this Agreement shall have an
expiry date later than one year from date of issuance.  Each Bank has
heretofore purchased participations in each of the Existing Letters of
Credit and the related Letter of Credit Liabilities, to the extent of
such Bank's Commitment Percentage.  Such participations are hereby
ratified and confirmed and made subject hereto.  All provisions of
this Agreement applicable to participations in Letters of Credit
hereunder shall be deemed to apply to participations in the Existing
Letters of Credit.

     (b)  ADDITIONAL PROVISIONS.  The following additional provisions
shall apply to each Letter of Credit:

     (i)  The Company shall give the Agent and each other Bank at
least five Business Days' irrevocable prior notice (effective upon
receipt) specifying the date such Letter of Credit is to be issued and
describing the proposed terms of such Letter of Credit and the nature
of the transaction proposed to be supported thereby.  The Company
shall furnish such additional information regarding such transaction
as the Agent may reasonably request.  Upon receipt of such notice, the
Agent shall promptly notify each Bank of such Bank's Commitment
Percentage of the amount of the proposed Letter of Credit and not
later than two Business Days prior to the requested issuance date for
such Letter of Credit shall furnish to each Bank and the Company a
proposed form of an Application for such Letter of Credit.  The
issuance by the Agent of each Letter of Credit shall, in addition to
the conditions precedent set forth in SECTION 7, be subject to the
conditions precedent that such Letter of Credit shall be in such form
and contain such terms as shall be reasonably satisfactory to the
Agent and that the Company shall have executed and delivered to the
Agent an Application and such other instruments and agreements
relating to such Letter of Credit not inconsistent with terms of this
Agreement as the Agent shall have reasonably requested and are not
inconsistent with the terms of this Agreement.  

     (ii) No Letter of Credit may be issued if after giving effect
thereto the sum of (a) the aggregate outstanding principal amount of
the Facility B Loans plus (b) the aggregate Letter of Credit
Liabilities would exceed the Available Amount.  On each day during the
period commencing with the issuance of any Letter of Credit and until
such Letter of Credit shall have expired or been terminated, the
Facility B Commitment of each Bank shall be deemed to be utilized for
all purposes hereof in an amount equal to such Bank's Commitment
Percentage of the amount then or thereafter available for drawings
under such Letter of Credit.

                                 -33-


     (iii) In consideration of the issuance of each Letter of Credit
the Company agrees to pay to the Agent, for the ratable benefit of the
Banks, the Letter of Credit Fee.  The Letter of Credit Fee shall be
payable concurrently with the issuance of each such Letter of Credit
and shall be separate from and in addition to interest on any
Reimbursement Obligation.  The Agent will pay to each Bank, promptly
after receiving any payment in respect of Letter of Credit Fees, an
amount equal to such Bank's Commitment Percentage of such Letter of
Credit Fees.

     (iv) Upon receipt from the beneficiary of any Letter of Credit of
any demand for payment thereunder, the Agent shall promptly notify the
Company and each Bank as to the amount to be paid as a result of such
demand and the payment date.  If at any time the Agent shall have made
a payment to a beneficiary of a Letter of Credit in respect of a
drawing or in respect of an acceptance created in connection with a
drawing under such Letter of Credit, each Bank will pay to the Agent
immediately upon demand (or, if such demand is made after 1:00 p.m.,
on the next succeeding Business Day) by the Agent at any time during
the period commencing after such payment until reimbursement thereof
in full by the Company, an amount equal to such Bank's Commitment
Percentage of such payment, together with interest on such amount for
each day from the later of (x) the date such payment is due as
provided in the preceding sentence or (y) the date such payment is
made under such Letter of Credit to the date of payment by such Bank
of such amount at a rate of interest per annum equal to the Fed Funds
Rate for such period.  No interest shall be due from any Bank that
makes full payment to the Agent on the date such payment is due. 
Nothing herein shall be deemed to require any Bank to pay to the Agent
any amount as reimbursement for any payment made by the Agent to
acquire (discount) for its own account prior to maturity thereof any
acceptance created under a Letter of Credit.

     (v)  The Company shall be irrevocably and unconditionally
obligated forthwith to reimburse the Agent for the account of each
Bank for any amount paid by the Agent or such Bank upon any drawing
under any Letter of Credit, without presentment, demand, protest or
other formalities of any kind all of which are hereby expressly waived
by the Company.  Each drawing under any Letter of Credit shall bear
interest at the Post-Default Rate until the Company shall have made
reimbursement for such drawing.  If the Company shall fail to make
reimbursement for any such drawing prior to noon on the second
Business Day after such notice is given, the Agent may in its
discretion and without the consent of (but with concurrent notice to)
the Company effect such reimbursement of any Letter of Credit, subject
to the satisfaction of the conditions in SECTION 7 of the Amended and
Restated Revolving Credit Agreement and to the existence of Facility B
Commitment, by borrowing of Facility B Loans and the application of
the proceeds thereof to the related Reimbursement Obligations.  The
Reimbursement Obligations shall survive the Termination Date and the
termination of this 

                                 -34-


Agreement.  The Agent will pay to each Bank such Bank's Commitment
Percentage of all amounts received from the Company for application in
payment, in whole or in part, of the Reimbursement Obligation in
respect of any Letter of Credit, but only to the extent such Bank has
made payment to the Agent in respect of such Letter of Credit pursuant
to CLAUSE (iv) above.  Nothing herein shall be deemed to require the
Agent to pay to any Bank any part of the proceeds of disposition
(rediscount) by the Agent for its own account to any other Person of
any acceptance created under a Letter of Credit which is acquired
(discounted) by the Agent prior to the maturity thereof or to require
any Bank to reimburse the Agent for the consequences of the Agent's
own gross negligence or willful misconduct.

     (vi) The obligations of the Company to pay Reimbursement
Obligations under this Agreement shall be absolute, unconditional and
irrevocable and shall be paid or performed strictly in accordance with
the terms of this Agreement under all circumstances whatsoever,
including, without limitation, the following circumstances:

          (a)  any lack of legality, validity, regularity or
enforceability of this Agreement, any Letter of Credit, any
Application or any agreement or document related to any of the
foregoing; 

          (b)  any amendment or waiver of (including any default), or
any consent to departure from, any Letter of Credit, this Agreement,
any Application or any agreement or document related to any of the
foregoing;

          (c)  the existence of any claim, set-off, defense or other
rights which the Company may have at any time against any beneficiary
or any transferee of any Letter of Credit (or any Persons or entities
for which such beneficiary or any such transferee may be acting), the
Agent, any Bank or any other Person, whether in connection with this
Agreement, any Letter of Credit, any Application or any agreement or
document related to any of the foregoing, the transactions
contemplated hereby or any unrelated transaction;

          (d)  any statement, certificate, draft or any other document
presented under any Letter of Credit proves to have been forged,
fraudulent, invalid or insufficient in any respect or any statement
therein proves to have been untrue or inaccurate in any respect
whatsoever;

          (e)  payment by the Agent under any Letter of Credit against
presentation of a draft or certificate which appears on its face to
comply but does not in fact comply with the terms of such Letter of
Credit; 

                                 -35-


          (f)  any defense based upon the failure of any beneficiary
or any transferee to receive all or any part of the proceeds of a draw
under any Letter of Credit transmitted by the Agent, or any non-
application or misapplication by any beneficiary or other transferee
of the proceeds of demand for payment under any Letter of Credit; and

          (g)  any bankruptcy, insolvency, reorganization,
arrangement, assignment for the benefit of creditors, readjustment of
debt, dissolution, liquidation or other similar event with respect to
the Company.

PROVIDED, that no such payment shall impair any claim the Company may
have against the Agent or any Bank.

     (c)  ILLEGALITY.  In the event that any restriction or limitation
is imposed upon or determined or held to be applicable to the Agent,
any Bank or the Company by, under or pursuant to any Legal
Requirement, which in the reasonable judgment of the Agent or any Bank
would prevent the Agent or such Bank from legally incurring liability
under or in respect of a Letter of Credit issued or proposed to be
issued hereunder, then the Agent shall give prompt written notice
thereof to the Company, whereupon the Agent and the Bank or Banks
affected shall have no obligation to issue or purchase participations
in any such Letter of Credit.

     2.2  AVAILABLE AMOUNT.

          (a)  Concurrently with the delivery of each Independent
Engineering Report and related Coverage Report required or permitted
hereby, there shall be determined, based on the Most Recent
Engineering Report and Approved Assumptions, the total maximum amount
of Facility B Loans and Letter of Credit Liabilities to be available
to the Company hereunder without violation of any Required Ratio. 
Upon each such delivery, the Company may by notice to the Co-Agents
designate as the Available Amount any amount (not to exceed the
Preliminary Available Amount as of the most recent Achievement Date
(or, if no Achievement Date occurs, the Preliminary Available Amount
then in effect), according to the applicable table in EXHIBIT C equal
to or less than such total maximum amount.  The Available Amount so
designated shall remain in effect as the Available Amount until the
next determination under this SECTION 2.2.  If no amount lesser than
(a) or (b) in this sentence is designated in accordance with this
SECTION 2.2, the Available Amount shall be the lesser of (a) the
Preliminary Available Amount then in effect according to the
applicable table in EXHIBIT C or (b) such total maximum amount.

          (b)  Notwithstanding anything in this Agreement to the
contrary, (1) no Bank shall be required to have aggregate Letters of
Credit Liabilities at any one time outstanding in excess of such
Bank's Commitment Percentage of the lesser of (x) $15,000,000 and 

                                 -36-


(y) the difference between (i) the Available Amount and (ii) the
aggregate Facility B Loans, and (2) if a Bank fails to participate in
a Letter of Credit as and when required hereunder and the Company
subsequently makes a repayment on the Reimbursement Obligations with
respect to such Letter of Credit, such repayment shall be split among
the non-defaulting Banks ratably in accordance with their respective
Commitment Percentages until each Bank has its Commitment Percentage
of all of the outstanding Reimbursement Obligations, and the balance
of such repayment shall be divided among all of the Banks in
accordance with their respective Commitment Percentages. 

          (c)  Notwithstanding anything in this Agreement to the
contrary, the Agent shall not be required to issue any Letter of
Credit during the existence of an Engineering Shortfall.

          (d)  The Company may from time to time at its option,
exercisable by giving written notice to the Co-Agents not more often
than once in any Calculation Period, provide to the Co-Agents an
Independent Engineering Report.  Upon the receipt of such notice, the
Co-Agents shall consult with the Company to determine new Approved
Assumptions, which shall be furnished to the Banks by a notice as
provided in the definition of "Approved Assumptions" and shall be
subject to the approval by Banks with aggregate Commitment Percentages
of 75% or more as provided therein.  The Optional Reserve Report shall
be based on the new Approved Assumptions and shall be accompanied by a
Coverage Report as of the date such Optional Reserve Report is
furnished.  The Annual Debt Service Coverage Ratio, the Alternate
Annual Debt Service Coverage Ratio, the TLOR Coverage Ratio and the
SLOR Coverage Ratio shall each be redetermined in accordance with this
Agreement on the basis of each such Optional Reserve Report and
Coverage Report, and the Available Amount recalculated as provided in
this SECTION 2.2.

          (e)  Notwithstanding any other provision of this Agreement
to the contrary, should both (x) the Company at any time designate as
the Available Amount an amount less than the maximum amount then
offered to it as the Available Amount by the Co-Agents and (y) as a
result the Company shall obtain the release of any Mortgaged
Properties under the Amended and Restated Revolving Credit Agreement,
the Available Amount may never thereafter exceed the amount so
designated by the Company.

     2.3  REDUCTIONS AND CHANGES OF COMMITMENTS.

     (a)  MANDATORY.  On the Termination Date the aggregate
Commitments shall be terminated in their entirety.

     (b)  THE COMPANY'S OPTION.  The Company shall have the right to
terminate or reduce the unused portion of the Commitments at any time
or from time to time; PROVIDED that:  (i) the Company shall give
notice of each such termination or reduction to the Agent as 

                                 -37-


provided in SECTION 5.5; (ii) each such partial reduction shall be in
minimum increments equal to $5,000,000; and (iii) the Company may not
cause the Available Amount to be less than the aggregate principal
amount of the Facility B Loans then outstanding plus the Letter of
Credit Liabilities then outstanding.  Any voluntary reduction in the
Available Amount prior to any scheduled reduction in the Available
Amount shall not affect the Available Amount after such scheduled
reduction date unless such voluntarily reduced Available Amount is
less than the amount scheduled to be the Available Amount after such
scheduled reduction date, in which case the Available Amount after
such scheduled reduction date shall be no greater than such
voluntarily reduced Available Amount.  Reference is made to
SECTION 2.8 of the Amended and Restated Revolving Credit Agreement for
restrictions on the Company's right to increase the Available Amount
under certain circumstances.

     (c)  NO REINSTATEMENT.  No reduction in or termination of
Commitments pursuant to this Section may be reinstated without the
written approval of the Agent and all Banks.

     2.4  SEVERAL OBLIGATIONS.  The failure of any Bank to participate
in any Letter of Credit shall not relieve any other Bank of its
obligation to participate in any Letter of Credit (the face amount of
which shall be reduced dollar for dollar by the amount of the share of
the Bank that failed to participate in such Letter of Credit) on such
date, but neither the Agent nor any Bank shall be responsible for the
failure of any other Bank to participate in any Letter of Credit.

     2.5  FEES.  In consideration of the Commitments, the Company
shall pay to the Agent for the account of each Bank in accordance with
its Commitment Percentage commitment fees (the "COMMITMENT FEES") for
the period from the date of the execution of this Agreement to and
including the earlier of the date the Commitments are terminated or
the Termination Date at a rate per annum equal to 1/2% of the Unused
Commitment.  The Company shall be entitled to credit on the Commitment
Fees any amount paid pursuant to SECTION 2.3 of the Amended and
Restated Revolving Credit Agreement.  The Commitment Fees shall be
computed for each day and shall be based on the Unused Commitment for
such day.  Accrued Commitment Fees shall be payable in arrears on the
date of the initial Letter of Credit, within three days after demand
therefor on or about the Quarterly Dates, and within three days after
demand therefor on or about the Termination Date.  All past due
Commitment Fees shall bear interest at the Post-Default Rate.  Upon
receipt, the Agent shall disburse the Commitment Fees to the Banks in
accordance with their Commitment Percentages.

     Section 3.     PREPAYMENTS.

     3.1  (a)  COMMITMENT AMOUNT.  The Company shall from time to time
on demand by the Agent prepay the Facility B Loans or reduce 
                                 -38-


Letter of Credit Liabilities in such amounts as shall be necessary (A)
so that at all times the aggregate outstanding principal amount of all
Facility B Loans and all Letter of Credit Liabilities hereunder shall
not be in excess of the aggregate of the Available Amount or (B) to
comply with SECTION 9.9.  Any such payment shall be allocated between
Facility B Loans, Letter of Credit Liabilities (and if to Letter of
Credit Liabilities, first, to Reimbursement Obligations) and other
obligations as the Company may elect.

     (b)  AVAILABLE AMOUNT.  The Company shall from time to time on
demand by the Agent and on the Termination Date prepay the Facility B
Loans or reduce Letter of Credit Liabilities in such amounts as shall
be necessary so that at all times the aggregate outstanding principal
amount of all Facility B Loans and all Letter of Credit Liabilities of
the Company hereunder shall be less than or equal to the Available
Amount.  Any such payment shall be allocated between Facility B Loans,
Letter of Credit Liabilities (and if to Letter of Credit Liabilities,
first, to Reimbursement Obligations) and then to other obligations as
the Company may elect.

     Section 4.  PAYMENTS OF PRINCIPAL AND INTEREST.

     4.1  REPAYMENT OF REIMBURSEMENT OBLIGATIONS.  The Company will
pay to the Agent for the account of each Bank the amount of each
Reimbursement Obligation forthwith upon its incurrence.  The amount of
any Reimbursement Obligation may, if the applicable conditions
precedent specified in SECTION 7 of the Amended and Restated Revolving
Credit Agreement have been satisfied, be paid with the proceeds of
Facility B Loans.  

     4.2  INTEREST.  Subject to SECTION 12.8, the Company will pay to
the Agent for the account of each Bank interest on the unpaid
principal amount of each Reimbursement Obligation owed to such Bank
for the period commencing on the date such Reimbursement Obligation
arises to but excluding the date such Reimbursement Obligation shall
be paid in full, at the Post-Default Rate.

     Accrued interest shall be due and payable from time to time on
demand of the Agent or the Required Banks (through the Agent).

     Section 5.  PAYMENTS; PRO RATA TREATMENT; COMPUTATIONS, ETC.

     5.1  PAYMENTS.  (a)  Except to the extent otherwise provided
herein, all payments of principal of or interest on the Reimbursement
Obligations and other amounts to be made by the Company hereunder
shall be made in dollars, in immediately available funds, to the Agent
at its Principal Office (or in the case of a successor Agent, at the
principal office of such successor Agent in the United States), not
later than 11:00 a.m. on the date on which such payment shall become
due (each such payment made after such time on such due date to be
deemed to have been made on the next succeeding Business Day).

                                 -39-


     (b)  The Company shall, at the time of making each payment
hereunder, specify to the Agent the Reimbursement Obligations or other
amounts payable by the Company hereunder to which such payment is to
be applied (and in the event that it fails so to specify, such payment
shall be applied as the Agent may designate to the amounts then due
and payable); PROVIDED that if no Reimbursement Obligations are then
due and payable or an Event of Default has occurred and is continuing,
the Agent may apply such payment to the Obligations in such order as
it may elect in its sole discretion, but subject to the other terms
and conditions of this Agreement, including SECTION 5.2).  Each
payment received by the Agent hereunder for the account of a Bank
shall be paid promptly to such Bank, in immediately available funds
for the account of such Bank's Applicable Lending Office.  

     (c)  If the due date of any payment hereunder falls on a day
which is not a Business Day, the due date for such payment shall be
extended to the next succeeding Business Day and interest shall be
payable for any principal so extended for the period of such
extension.

     5.2  PRO RATA TREATMENT.  Except to the extent otherwise provided
herein, (a) each issuance of a Letter of Credit and each termination
or reduction of the Commitments of the Banks under SECTION 2.3 shall
be made PRO RATA according to the Banks' respective Commitments; (b)
each payment by the Company of principal of or interest on any
Reimbursement Obligation shall be made to the Agent for the account of
the Banks PRO RATA in accordance with the respective unpaid principal
amounts of such Reimbursement Obligation held by the Banks; and (c)
the Banks (other than the Agent) shall purchase from the Agent
participations in the Letters of Credit in accordance with their
respective Commitment Percentages.

     5.3  COMPUTATIONS.  Interest based on the Alternate Base Rate (to
the extent determined by reference to the Prime Rate), and fees
hereunder, will be computed on the basis of 365 (or 366) days and
actual days elapsed (including the first day but excluding the last
day) occurring in the period for which payable.  All other interest
shall be computed on the basis of a year of 360 days and actual days
elapsed (including the first day but excluding the last day) occurring
in the period for which payable, unless the effect of so computing
shall be to cause the rate of interest to exceed the Highest Lawful
Rate (in which event interest shall be calculated on the basis of the
actual number of days elapsed in a year composed of 365 or 366 days,
as the case may be).

     5.4  MINIMUM AND MAXIMUM AMOUNTS.  Each Letter of Credit shall be
in a face amount at least equal to $100,000.

     5.5  CERTAIN ACTIONS, NOTICES, ETC.  Notices to the Agent of any
termination or reduction of Commitments, prepayments under

                                 -40-


SECTION 3.1 and requests for the issuance of Letters of Credit shall
be irrevocable and shall be effective only if received by the Agent
not later than 11:00 a.m. on the number of Business Days prior to the
date of the relevant issuance, termination, reduction, and/or
prepayment specified below:

                                   Number of Business
                                        Days Prior   
                                          NOTICE     

     Termination or reduction
     of Commitments                         10

     Issuance of Letters of Credit           5

     Prepayments                             1

Each such notice of termination or reduction shall specify the amount
of the Commitments to be terminated or reduced.  Each such notice of
prepayment shall specify the amount to be prepaid (subject to SECTION
3.1) and the date of prepayment (which shall be a Business Day).  The
Agent shall promptly notify the Banks of the contents of each such
notice or Application.  Notice of any prepayment having been given,
the principal amount specified in such notice, together with interest
thereon to the date of prepayment, shall be due and payable on such
prepayment date.

     5.6  NON-RECEIPT OF FUNDS BY THE AGENT.  Unless the Agent shall
have been notified by a Bank prior to noon on the date on which such
Bank is to make payment to the Agent of any amount to be paid by such
Bank to reimburse the Agent for a drawing under any Letter of Credit
or by the Company prior to the date on which the Company is to make a
payment to the Agent for the account of one or more of the Banks, as
the case may be (such Bank or the Company being herein called the
"PAYOR" and 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 the date that such Required
Payment is to be made.  If the Payor is the Company and the Company
has not in fact made the Required Payment to the Agent on or before
such date, the recipient of such payment (or, if the recipient is the
beneficiary of a Letter of Credit, the Company, and, if the Company
fails to pay the amount thereof to the Agent on demand, then the
Banks, to the extent not already paid, ratably in proportion to their
respective Commitment Percentages) shall, on demand, pay to the Agent
the amount made available by the Agent, together with interest thereon
from the date such amount was so made available by the Agent until the
date the Agent recovers such amount at a rate per annum equal to the
Fed Funds Rate for the first three days 

                                 -41-


after demand and thereafter at the Fed Funds Rate plus 2%.  If the
Payor is a Bank and such Bank has not in fact made the Required
Payment to the Agent on or before such date, then such Bank shall pay
to the Agent the amount made available by the Agent on behalf of such
Bank, together with interest thereon from the date such amount was so
made available by the Agent until the Agent recovers such amount at a
rate per annum equal to the Fed Funds Rate for the first three days
and thereafter at the Fed Funds Rate plus 2%.

     5.7  SHARING OF PAYMENTS, ETC.  If a Bank or any participant of a
Bank shall obtain payment of any obligation to it under this
Agreement, through the exercise of any right of set-off, banker's
lien, counterclaim or similar right, or otherwise, then such Bank or
participant shall promptly purchase from the other Banks participa-
tions in the Reimbursement Obligations or other obligations held by
the other Banks in such amounts, and make such other adjustments from
time to time as shall be equitable to the end that all the Banks and
participants shall share the benefit of such payment (net of any
expenses which may be incurred by such Bank or its participant in
obtaining or preserving such benefit) PRO RATA in accordance with the
unpaid principal and interest on such obligations then due to each of
them.  To such end all the Banks and their participants shall make
appropriate adjustments among themselves (by the resale of
participations sold or otherwise) if such payment is rescinded or must
otherwise be restored.  The Company agrees, to the fullest extent it
may effectively do so under applicable law, that any Bank so
purchasing a participation in the Reimbursement Obligations or other
obligations held by other Banks may exercise all rights of set-off,
bankers' lien, counterclaims or similar rights with respect to such
participation as fully as if such Bank were a direct holder of
Reimbursement Obligations or other obligations in the amount of such
participation.  Nothing contained herein shall require any Bank to
exercise any such right or shall affect the right of any Bank to
exercise, and retain the benefits of exercising, any such right with
respect to any other indebtedness or obligation of the Company.

     5.8  OTHER EXPENSES.  The Company agrees to pay the Agent, for
the account of the Agent, the usual and customary charges of TCB for
each extension, amendment and wire advice of and drawing under the
Letters of Credit.

     Section 6.  YIELD PROTECTION AND ILLEGALITY.  

     6.1  ADDITIONAL COSTS IN RESPECT OF LETTERS OF CREDIT.  If as a
result of any Regulatory Change there shall be imposed, modified or
deemed applicable any tax, reserve, special deposit or similar
requirement against or with respect to or measured by reference to
Letters of Credit issued or to be issued hereunder and the result
shall be to increase the cost to the Agent or any Bank of issuing or
maintaining or participating in any Letter of Credit or reduce 

                                 -42-


any amount receivable by the Agent or any Bank hereunder in respect of
any Letter of Credit or participation therein, then such Bank shall
notify the Company through the Agent, and upon demand therefor by such
Bank through the Agent, the Company (subject to SECTION 12.8) shall
pay to the Agent or such Bank, from time to time as specified by the
Agent or such Bank, such additional amounts as shall be sufficient to
compensate the Agent or such Bank for such increased costs or
reductions in amount.  Before making such demand pursuant to this
SECTION 6.1, the Agent or such Bank will designate a different
available Applicable Lending Office for the Letter of Credit or
participation or take such other action as the Company may request, if
such designation or action will avoid the need for, or reduce the
amount of, such compensation and will not, in the sole opinion of the
Agent or such Bank, be disadvantageous to the Agent or such Bank.  A
statement as to such increased costs or reductions in amount incurred
by the Agent or such Bank, submitted by the Agent or such Bank to the
Company, shall cover amounts accruing under this section with respect
to a period beginning not earlier than 120 days from the date thereof
and be conclusive as to the amount thereof, absent manifest error.

     In the event any Bank shall seek compensation pursuant to this
SECTION 6.1, the Company may give notice to such Bank (with copies to
the Agent) that it wishes to seek one or more Eligible Assignees
(which may be one or more of the Banks) to assume the Commitment of
such Bank and to purchase and assume its outstanding Letter of Credit
Liabilities.  Each Bank requesting compensation pursuant to this
SECTION 6.1 agrees to sell its Commitment and interest in this
Agreement and in the Obligations and in the Amended and Restated
Revolving Credit Agreement pursuant to SECTION 12.6 (without recourse,
representation or warranty except as provided in SECTION 12.6)  to any
such Eligible Assignee for an amount equal to the sum of the
outstanding unpaid principal of and accrued interest on such
Obligations plus all other fees and amounts (including any
compensation claimed by such Bank under this SECTION 6.1) owing to
such Bank hereunder and under the Amended and Restated Revolving
Credit Agreement calculated, in each case, to the date such
Commitment, Obligations and interests are purchased, whereupon such
Bank shall have no further Commitment or other obligation to the
Company hereunder or under the Amended and Restated Revolving Credit
Agreement.

     6.2  CAPITAL ADEQUACY.  If any Bank shall have determined that
the adoption after the date hereof or effectiveness after the date
hereof (regardless of whether previously announced) of any applicable
Legal Requirement or treaty regarding capital adequacy, or any change
after the date hereof in any existing or future Legal Requirement or
treaty regarding capital adequacy, or any change in the interpretation
or administration thereof after the date hereof by any Governmental
Authority or comparable agency charged with the interpretation or
administration thereof, or compliance by any Bank (or its Applicable
Lending Office) with any request or directive 

                                 -43-


after the date hereof regarding capital adequacy (whether or not
having the force of law) of any such Governmental Authority or
comparable agency has or would have the effect of reducing the rate of
return on the capital of such Bank (or any holding company of which
such Bank is a part) as a consequence of its obligations hereunder and
under or in respect of the Letters of Credit to a level below that
which such Bank or holding company could have achieved but for such
adoption, change or compliance by an amount deemed by such Bank to be
material, then from time to time, upon demand by such Bank (with a
copy to the Agent), the Company (subject to SECTION 12.8) shall pay to
such Bank such additional amount or amounts as will compensate such
Bank or holding company for such reduction.  The certificate of any
Bank setting forth such amount or amounts as shall be necessary to
compensate it and the basis therefor shall cover amounts accruing
under this SECTION 6.2 with respect to a period beginning not earlier
than 120 days from the date thereof and shall be conclusive and
binding, absent manifest error.  The Company shall pay the amount
shown as due on any such certificate upon delivery of such
certificate.  In preparing such certificate, a Bank may employ such
assumptions and allocations of costs and expenses as it shall in good
faith deem reasonable and may use any reasonable averaging and
attribution method.  In the event any Bank shall seek compensation
pursuant to this SECTION 6.2, the Company may give notice to such Bank
(with copies to the Agent) that it wishes to seek one or more Eligible
Assignees (which may be one or more of the Banks) to assume the
Commitment of such Bank and to purchase and assume its outstanding
Letter of Credit Liabilities.  Each Bank requesting compensation
pursuant to this SECTION 6.2 agrees to sell its Commitment and
interest in this Agreement and in the Obligations and in the Amended
and Restated Revolving Credit Agreement pursuant to SECTION 12.6
(without recourse, representation or warranty except as provided in
SECTION 12.6) to any such Eligible Assignee for an amount equal to the
sum of the outstanding unpaid principal of and accrued interest on
such Obligations plus all other fees and amounts (including any
compensation claimed by such Bank under this SECTION 6.2) owing to
such Bank hereunder and under the Amended and Restated Revolving
Credit Agreement calculated, in each case, to the date such
Commitment, Obligations, and interests are purchased, whereupon such
Bank shall have no further Commitment or other obligation to the
Company hereunder or under the Amended and Restated Revolving Credit
Agreement.

     Section 7.     CONDITIONS PRECEDENT.

     7.1  CLOSING CONDITIONS.  The effectiveness of this Agreement is
subject to the following conditions precedent, each of which shall
have been fulfilled or waived to the satisfaction of the Agent:

     (a)  CORPORATE ACTION AND STATUS.  The Agent shall have received
copies of the Organizational Documents of the Company

                                 -44-


certified by the Secretary of the Company, and resolutions of the
Board of Directors of the Company, certified by the Secretary of the
Company, for all corporate action taken by the Company authorizing the
execution, delivery and performance of the Credit Documents and all
other documents related to this Agreement, together with such
certificates as may be appropriate to demonstrate the qualification
and good standing of and payment of taxes by each member of the
Combined Group in each jurisdiction set forth on SCHEDULE VIII.

     (b)  INCUMBENCY.  The Company shall have delivered to the Agent a
certificate in respect of the name and signature of each officer who
(1) is authorized to sign on its behalf the applicable Credit
Documents related to any Letter of Credit and (2) will, until replaced
by another officer or officers duly authorized for that purpose, act
as its representative for the purposes of signing documents and giving
notices and other communications in connection with any Letter of
Credit hereunder.  The Agent and each Bank may conclusively rely on
such certificates until they receive notice in writing from the
Company to the contrary.

     (c)  CREDIT DOCUMENTS.  The Company shall have duly executed and
delivered the other Credit Documents to which it is a party and each
such Credit Document shall be in Proper Form.  

     (d)  FEES AND EXPENSES. The Company shall have paid to the Agent
all fees in the amounts previously agreed upon in writing among the
Company and the Agent.

     (e)  OPINION OF COUNSEL TO THE COMPANY.  The Agent shall have
received the opinions of Andrews & Kurth, L.L.P. and David L. Hicks,
counsel to the Company, substantially in the forms of SCHEDULES VI and
VII hereto, respectively.

     (f)  COUNTERPARTS.  The Agent shall have received counterparts of
each of the Credit Documents duly executed and delivered by or on
behalf of each of the parties thereto (or, in the case of any Bank as
to which the Agent shall not have received such a counterpart, the
Agent shall have received evidence satisfactory to it of the execution
and delivery by such Bank of a counterpart hereof).

     (g)  CONSENTS.  The Agent shall have received evidence
satisfactory to it that all consents of each Governmental Authority
and of each other Person, if any, required in connection with (1) the
Letters of Credit and (2) the execution, delivery and performance of
the Credit Documents have been received and remain in full force and
effect.

     (h)  AMENDED AND RESTATED REVOLVING CREDIT AGREEMENT.  The
Amended and Restated Revolving Credit Agreement shall be executed and
delivered by the parties thereto and shall be in full force and
effect.

                                 -45-


     (i)  OTHER DOCUMENTS.  The Agent shall have received such other
documents consistent with the terms of this Agreement and relating to
the transactions contemplated hereby as the Agent may reasonably
request.

     All provisions and payments required by this SECTION 7.1 are
subject to the provisions of SECTION 12.8.

     7.2  ALL LETTERS OF CREDIT.  In addition to the conditions
precedent described in SECTION 2, the obligation of the Agent to issue
and each Bank to participate in any Letter of Credit is subject to the
additional conditions precedent that, as of the date of such issuance,
and after giving effect thereto:  

     (a)  no Default shall have occurred and be continuing, and no
"Default" shall have occurred and be continuing under the Amended and
Restated Revolving Credit Agreement;

     (b)  there has been no Material Adverse Change since December 31,
1993; 

     (c)   the representations and warranties made in each Credit
Document shall be true and correct in all material respects on and as
of the date of the issuance of such Letter of Credit, with the same
force and effect as if made on and as of such date; 

     (d)  the Company shall have delivered to the Agent an Application
within the time specified in SECTION 5.5; 

     (e)  the issuance of such Letter of Credit shall not be
prohibited by, or subject any Bank to any penalty under, any Legal
Requirement applicable to any Bank; and     

     (f)  after giving effect to such Letter of Credit the Company
shall be in compliance with all Required Ratios and no Engineering
Shortfall shall exist.

     Each request for issuance of a Letter of Credit by the Company
hereunder shall include a representation and warranty by the Company
to the effect set forth in SUBSECTIONS (a) through (d) and SUBSECTION
(f) (if applicable) of this SECTION 7.2 (both as of the date of such
notice and, unless the Company otherwise notifies the Agent prior to
the date of such issuance, as of the date of such issuance).

     Section 8.  REPRESENTATIONS AND WARRANTIES.  To induce the Agent
and the Banks to enter into this Agreement and to issue and
participate in Letters of Credit, the Company represents and warrants
(such representations and warranties to survive any investigation and
the issuance of Letters of Credit) to the Banks and the Agent as
follows:

                                 -46-


     8.1  CORPORATE EXISTENCE.  Each member of the Combined Group (a)
is duly organized, validly existing and in good standing under the
laws of the jurisdiction of its organization; (b) has all requisite
power, and has all licenses, permits, authorizations, consents and
approvals necessary, to own its property and carry on its business as
now being conducted, and (c) is qualified to do business, and is in
good standing, in (1) all jurisdictions in which any of the Recognized
Proved Reserves which it owns are located and (2) any other
jurisdiction in which the nature of the business conducted by it makes
such qualification necessary or advisable, unless (for purposes only
of this CLAUSE (2)) the failure to be so qualified or in good standing
would not individually or in the aggregate have a material adverse
effect on the business, financial condition or results of operations
of the Combined Group taken as a whole.

     8.2  INFORMATION.

     (a)  (i)  The most recent consolidated balance sheet of the
Company and its Subsidiaries and the related consolidated statements
of operations, changes in financial position and cash flows for the
period then ended, together with the respective notes thereto,
delivered to each of the Banks prior to the execution of this
Agreement (which financial statements are dated December 31, 1993) or
in accordance with the provisions of SECTION 9.1(a) or (b), as the
case may be (the latest of such financial statements and the notes
thereto being referred to herein as the "MOST RECENT FINANCIAL
STATEMENTS"), fairly present in all material respects the consolidated
financial position of the Company and its Subsidiaries as of such date
and their consolidated results of operations for the period then ended
in conformity with generally accepted accounting principles.

          (ii) The Company and its Subsidiaries did not on the date of
the Most Recent Financial Statements, and do not on the date as of
which this representation is made in accordance with the terms of this
Agreement, have any material contingent liabilities, material
liabilities for taxes, unusual and material forward or long-term
commitments or material unrealized or anticipated losses from any
commitments, except (A) as referred to or reflected or provided for in
the Most Recent Financial Statements; (B) as otherwise hereafter
disclosed to the Banks in writing in accordance with the terms of this
Agreement, or (C) in connection with the obligations of the Company
under this Agreement and the Amended and Restated Revolving Credit
Agreement.

     (b)  Since December 31, 1991, there has been no Material Adverse
Change.

     8.3  LITIGATION; COMPLIANCE.  Except as disclosed in writing to
the Banks prior to the date hereof, or as hereafter disclosed to the
Banks in accordance with the provisions of SECTION 9.1(e),

                                 -47-


there are no legal or arbitral proceedings or any proceedings by or
before any Governmental Authority now pending, or, to the knowledge of
the Company, threatened, against or affecting the Company or any of
its Subsidiaries which, if adversely determined, would cause a
Material Adverse Change.  The Company and its Subsidiaries comply in
all material respects with all applicable material (based on the
Company and its Subsidiaries taken as a whole) Legal Requirements
(other than the Applicable Environmental Laws, representations
regarding which are subject to SECTION 8.13).  Neither the Company nor
any of its Subsidiaries is in default in any material respect under or
violation of any material (based on the Company and its Subsidiaries
taken as a whole) judgment, order or decree of any Governmental
Authority.

     8.4  NO BREACH.  None of the execution and delivery of the Credit
Documents, the consummation of the transactions therein contemplated
or compliance with the terms and provisions thereof will conflict with
or result in a breach of, or require any consent that has not been
obtained under, the Serial Note Agreement, the Organizational
Documents of the Company or any of its Subsidiaries or any material
Legal Requirement (including any securities law, rule or regulation)
applicable to the Company or any of its Subsidiaries or (except for
the Liens required or permitted by this Agreement) result in the
creation or imposition of any Lien upon any of the revenues or
property of the Company or any of its Subsidiaries.  Such execution,
delivery, consummation and compliance do not and will not conflict
with or result in a breach of any material agreement or instrument to
which the Company is a party or by which the Company is bound or to
which it is subject, or constitute a default under any such agreement
or instrument.

     8.5  CORPORATE ACTION.  The Company has all necessary corporate
power and authority to execute, deliver and perform its obligations
under the Credit Documents.  The execution, delivery and performance
of the Credit Documents by the Company have been duly authorized by
all necessary corporate action.  The Credit Documents have been duly
and validly executed and delivered by the Company and constitute the
legal, valid and binding obligations of the Company, enforceable in
accordance with their respective terms, except as the enforceability
thereof may be limited by bankruptcy, insolvency, fraudulent
conveyance, reorganization, moratorium or other similar laws relating
to the enforcement of creditors' rights generally and by general
equitable principles.

     8.6  APPROVALS.  All authorizations, approvals and consents of,
and all filings and registrations with, all Governmental Authorities
and each other Person necessary for the execution, delivery or
performance of any Credit Document or for the validity or
enforceability thereof, except for the filings and recordings of the
Liens created pursuant to the Security Documents under the Amended and
Restated Revolving Credit Agreement, have been obtained by the Company
and are in full force and effect.

                                 -48-


     8.7  REGULATIONS G, U AND X.  Neither the Company nor any of its
Subsidiaries is engaged principally, or as one of its important
activities, in the business of extending credit for the purpose of
purchasing or carrying margin stock (within the meaning of Regulation
G, U or X of the Board) and no Letter of Credit hereunder will be used
to acquire or carry, directly or indirectly, any such margin stock.

     8.8  ERISA.  The Company and each ERISA Affiliate have fulfilled
their contribution obligations under each Plan subject to Title IV of
ERISA and have fulfilled their obligations under the minimum funding
standards of ERISA and the Code with respect to each Plan subject to
Title IV of ERISA, and in all other regard with respect to each Plan
are in material compliance with the applicable provisions of ERISA,
the Code, and all other applicable laws, regulations and rules, to the
extent that noncompliance with such provisions would result in a
Material Adverse Change.  The Company has no knowledge of any event
with respect to each Plan which could result in a Material Adverse
Change.

     8.9  TAXES.  Each of the Company and its Subsidiaries has filed
all United States federal income tax returns and all other material
tax returns which are required to be filed by it and has paid all
taxes due pursuant to such returns or pursuant to any assessment
received by it, except to the extent the same may be contested in good
faith by appropriate proceedings diligently conducted for which
adequate reserves have been established in accordance with generally
accepted accounting principles.  The charges, accruals and reserves on
the books of the Company and its Subsidiaries in respect of taxes and
other governmental charges, as made on a periodic basis, are adequate.

    8.10  SUBSIDIARIES.  SCHEDULE I is a complete and correct list, as
of the date of this Agreement, of all Subsidiaries of the Company. 
All shares or other indicia of equity interest of the Restricted
Subsidiaries and the Special Subsidiary directly or indirectly owned
by the Company are free and clear of Liens, and all such shares are
validly issued, fully paid and non-assessable.

    8.11  INVESTMENT COMPANY ACT.  No member of the Combined Group is
an investment company within the meaning of the Investment Company Act
of 1940, as amended, or, directly or indirectly controlled by or
acting on behalf of any Person which is an investment company, within
the meaning of said Act.

    8.12  PUBLIC UTILITY HOLDING COMPANY ACT.  No member of the
Combined Group is a "public utility company", or, to the knowledge of
the Company, an "affiliate" or a "subsidiary company" of a "public
utility company", or a "holding company", or an "affiliate" or a
"subsidiary company" of a "holding company" or of a "subsidiary
company" of a "holding company", as such terms are 

                                 -49-


defined in the Public Utility Holding Company Act of 1935, as amended. 


    8.13  ENVIRONMENTAL MATTERS.  Except as disclosed in writing to
the Agent prior to the date hereof, the Company and its Subsidiaries,
and the plants and sites of each, have complied with all Applicable
Environmental Laws, except, in any such case, where such failure to so
comply would not result in a Material Adverse Change.  Without
limiting the generality of the preceding sentence, neither the Company
nor any of its Subsidiaries has received notice of or has actual
knowledge of any actual or claimed or asserted failure so to comply
with Applicable Environmental Laws or of any other Environmental Claim
which alone or together with all other such failures or Environmental
Claims is material and would result in a Material Adverse Change. Except
as disclosed in writing to the Agent prior to the date hereof,
neither the Company nor any of its Subsidiaries nor their plants or
other sites manage, generate or dispose of, or during their respective
period of use, ownership, occupancy or operation by the Company or its
Subsidiaries have managed, generated, released or disposed of, any
hazardous wastes, hazardous substances, hazardous materials, toxic
substances or toxic pollutants, as those terms are used or defined in
the Applicable Environmental Laws, in material violation of or in a
manner which would result in liability under the Applicable
Environmental Laws or any other applicable Legal Requirement, or in a
manner which would result in an Environmental Claim except where such
noncompliance or liability or Environmental Claim would not result in
a Material Adverse Change.  The representation and warranty contained
in this SECTION 8.13 is based in its entirety upon (a) current
interpretations and enforcement policies that have been publicly
disseminated and are used by Governmental Authorities charged with the
enforcement of the Applicable Environmental Laws or which apply to the
Company or any of its Subsidiaries with respect to any property or
sites in a particular jurisdiction and (b) current levels of publicly
disseminated scientific knowledge concerning the detection of, and the
health and environmental risks associated with the discharge of,
substances and pollutants regulated pursuant to the Applicable
Environmental Laws.

     Section 9.  COVENANTS.  The Company agrees with the Banks and the
Agent that until the termination of this Agreement:  

     9.1  FINANCIAL STATEMENTS AND CERTIFICATES.  The Company will
deliver in duplicate:

     (a)  to each Bank, as soon as practicable and in any event within
45 days after the end of each quarterly period (other than the last
quarterly period) in each fiscal year, consolidated and consolidating
statements of operations, stockholders' equity and cash flows of the
Company and its Subsidiaries for the period from the beginning of the
current fiscal year to the end of such quarterly period, and a
consolidated and consolidating balance 

                                 -50-


sheet of the Company and its Subsidiaries as of the end of such
quarterly period, setting forth (1) as to each account affected
thereby, all eliminating entries for the Unrestricted Subsidiaries as
a group and for the Special Subsidiary, respectively, and (2) the
resulting consolidated and consolidating figures for the Company and
the Restricted Subsidiaries, and setting forth in each case in
comparative form figures for the corresponding period in the preceding
fiscal year, all in reasonable detail and unaudited but certified by
an authorized financial officer of the Company as fairly presenting
the financial position and results of operations of the Company and
its Subsidiaries as of the date thereof and the period then ended,
subject to changes resulting from year-end adjustments;

     (b)  to each Bank, as soon as practicable and in any event within
90 days after the end of each fiscal year, consolidated and
consolidating statements of operations, stockholders' equity and cash
flows of the Company and its Subsidiaries for such year, and a
consolidated and consolidating balance sheet of the Company and its
Subsidiaries as of the end of such fiscal year, setting forth (1) as
to each account affected thereby, all eliminating entries for the
Unrestricted Subsidiaries as a group and for the Special Subsidiary,
respectively, and (2) the resulting consolidating figures for the
Company and the Restricted Subsidiaries, and setting forth in each
case in comparative form corresponding consolidating figures from the
preceding annual audit, all in reasonable detail and which shall be
reported on by Price Waterhouse & Co. or other independent public
accountants of recognized national standing selected by the Company
whose report shall (A) contain an opinion that shall be unqualified as
to the scope or limitations imposed by the Company and shall not be
subject to any other material qualification and (B) state that such
financial statements present fairly, in all material respects, the
financial position of the Company and its Subsidiaries at the dates
indicated and their cash flows and the results of their operations and
the changes in their financial position for the periods indicated in
conformity with generally accepted accounting principles, and shall be
accompanied by a report of such independent public accountants stating
that (W) such audit was made for the purpose of forming an opinion on
the consolidated financial statements taken as a whole; (X) the
consolidating information set forth therein is presented for purposes
of additional analysis rather than to present the financial position,
results of operations and cash flows of the individual companies; (Y)
such consolidating information has been subjected to the auditing
procedures applied in the audit of the basic financial statements, and
(Z) in such independent public accountants' opinion, such
consolidating information is fairly stated in all material respects in
relation to the consolidated financial statements taken as a whole,
with such changes thereto as such accountants reasonably determine to
be appropriate under the circumstances;

                                 -51-


     (c)  to each Bank, promptly upon transmission thereof, copies of
all financial statements, proxy statements, notices and reports as it
shall send to its public stockholders and copies of all registration
statements (without exhibits, and other than registration statements
and reports relating to employee benefit or compensation plans) and
all reports which it files with the Securities and Exchange Commission
(or any governmental body or agency succeeding to the functions of the
Securities and Exchange Commission);

     (d)  to each Bank, promptly upon receipt thereof, a copy of each
other report submitted to the Company or any of its Subsidiaries by
independent accountants in connection with any annual, interim or
special audit made by them of the books of the Company or any such
Subsidiary;

     (e)  to each Bank, as soon as practicable and in any event within
15 days after any executive officer of the Company obtains knowledge
(1) of any Default or any condition or event which, in the opinion of
management of the Company, would have a Material Adverse Change (to
the extent affecting the Company and its Subsidiaries in a materially
different manner or extent than the oil and gas industry generally);
(2) that any Person has given any notice to the Company or any of its
Subsidiaries or taken any other action with respect to a claimed
default or event or condition of the type referred to in SECTION
10.1(b) or (m); (3) of the institution of any litigation involving
claims against the Company or any of its Subsidiaries equal to or
greater than $5,000,000 with respect to any single cause of action or
of any adverse determination in any court proceeding in any litigation
involving a potential liability to the Company or any of its
Subsidiaries equal to or greater than $5,000,000 with respect to any
single cause of action which makes the likelihood of an adverse
determination in such litigation against the Company or such
Subsidiary substantially more probable, or (4) of any regulatory
proceeding which, if determined adversely to the Company, would have a
Material Adverse Change (to the extent affecting the Company and its
Subsidiaries in a materially different manner or extent than the oil
and gas industry generally), an Officer's Certificate specifying the
nature and period of existence of any such Default, condition or
event, or specifying the notice given or action taken by such Person
and the nature of any such claimed Default, event or condition, or
specifying the details of such proceeding, litigation or dispute and,
in each case, what action the Company or any of its Subsidiaries has
taken, is taking or proposes to take with respect thereto;

     (f)  to each Bank, (1) promptly after the filing or receiving
thereof, copies of all annual reports and such other material reports
and notices which the Company or any ERISA Affiliate files under ERISA
with the Internal Revenue Service, the PBGC or the U.S. Department of
Labor with respect to a Plan that is subject to Title 

                                 -52-


IV of ERISA; (2) promptly upon acquiring knowledge of any "reportable
event" (as defined in Section 4043 of ERISA) or of any "prohibited
transaction," as such term is defined in the Code or ERISA, in
connection with any Plan which may result in a Material Adverse
Change, a statement executed by the president or chief financial
officer of the Company or the applicable ERISA Affiliate, setting
forth the details thereof and the action which the Company or the
ERISA Affiliate proposes to take with respect thereto and, when known,
any action taken by the PBGC, the Internal Revenue Service or the U.S.
Department of Labor with respect thereto; (3) promptly after the
filing or receiving thereof by the Company or any ERISA Affiliate, any
notice of the institution of any proceedings or other actions which
may result in the termination of any Plan or notice of complete or
partial withdrawal liability under Title IV of ERISA, and (4) each
request for waiver of the funding standards or extension of the
amortization periods required by Sections 303 and 304 of ERISA or
Section 412 of the Code promptly after the request is submitted by the
Company or any ERISA Affiliate, to the Secretary of the Treasury, the
U.S. Department of Labor or the Internal Revenue Service, as the case
may be;

     (g)  to each Bank, as soon as available but in no event later
than February 28 of each year, an Independent Engineering Report
reflecting data as of December 31 of the prior year; and

     (h)  to each Bank, with reasonable promptness, such other
information respecting the business, financial condition or results of
operations of the Company or any of its Subsidiaries as such Bank may
reasonably request.

Additionally, the Company will deliver to each Bank:

     (x)  Together with each delivery of financial statements required
by SUBSECTION (a) above, each Required Reserve Report and each
Optional Reserve Report, an Officer's Certificate and a Coverage
Report demonstrating (with computations in reasonable detail)
compliance by the Company and the Restricted Subsidiaries with the
provisions of SECTIONS 9.6, 9.7(b)(3), (4) and (6), 9.7(c)(2) and (3),
9.7(d), 9.7(e), 9.7(f), 9.7(g) and 9.9, demonstrating that no Default
exists under SECTION 10.1(i) and stating that there then exists no
Default, or, if any Default exists, specifying the nature and period
of existence thereof and what action the Company proposes to take with
respect thereto.

     (y)  Together with each delivery of financial statements required
by SUBSECTION (b) above, a certificate of such accountants stating
that, in conducting the audit of the Company's consolidated financial
statements in accordance with generally accepted auditing standards
they have obtained no knowledge of any Default arising under SECTION
10.1(a), (b) or (i) or any Default arising under SECTION 10.1(d) that
occurs as result of the breach or violation by the Company or the
Restricted Subsidiaries of SECTIONS 9.6, 9.7(b),
                                  -53-


(c), (d), (e), (f), (g), (h), (i) or 9.8, or, if they have obtained
knowledge of any such Default, specifying the nature and period of
existence thereof.  Such accountants, however, shall not be liable to
the Agent or any Bank by reason of their failure to obtain knowledge
of any such Default which would not be disclosed in the course of an
audit conducted in accordance with generally accepted auditing
standards.  The Company also covenants that forthwith upon the chief
executive officer, principal financial officer or principal accounting
officer of the Company obtaining knowledge of a Default, it will
deliver to each Bank an Officer's Certificate specifying the nature
and period of existence thereof and what action the Company proposes
to take with respect thereto.

     (z)  Together with each delivery of financial statements required
by SUBSECTIONS (a) or (b) above, the Company will deliver to each Bank
a pro forma statement of operations of the Company and its Restricted
Subsidiaries for the same fiscal period as such financial statements
that assumes that the impairments of oil and gas properties taken by
the Company and its Restricted Subsidiaries in the fourth quarter of
1993 in the amount of up to $100 million as reflected in the Company's
consolidated financial statements for the year ended December 31,
1993, shall not have occurred and a calculation in reasonable detail
showing the determination of Consolidated Net Earnings and Unimpaired
Consolidated Net Earnings for such fiscal period.

     9.2  INSPECTION OF PROPERTY.  The Company covenants that it will
permit any Person designated in writing by any Bank, at such Bank's
expense and risk, to visit and inspect any of the properties of the
Company and its Subsidiaries; and also to examine the corporate books
and financial records of the Company and its Subsidiaries and to make
copies thereof or extracts therefrom and to discuss the affairs,
finances and accounts of such Persons with the executive officers of
the Company, the petroleum reserve engineers employed by the Company
and its Subsidiaries and the Company's independent public accountants,
all at such reasonable times, with a representative of the Company
present and as often as such Bank may reasonably request, and will
assist such Person or Persons in all such activities.

     9.3  COMPLIANCE WITH ENVIRONMENTAL LAWS.  The Company will, and
will cause each of its Subsidiaries and each of its Affiliates that
are controlled by the Company or its Subsidiaries to, comply in a
timely fashion with, or operate pursuant to valid waivers of the
provisions of, all Applicable Environmental Laws, except where
non-compliance would neither (a) result in a Material Adverse Change nor
(b) subject the Agent or any Bank to any liability for such
non-compliance (PROVIDED that the Company shall not be in default of this
SUBSECTION (b) if the Company indemnifies each of the Agent, Banks or
any of them subjected to such liability and provides collateral to
secure such indemnification, all to the extent required by the Person
subjected to such liability in its 

                                 -54-


sole and unfettered discretion).  THE COMPANY AGREES TO INDEMNIFY AND
HOLD THE AGENT AND EACH BANK, AND THEIR RESPECTIVE OFFICERS, AGENTS
AND EMPLOYEES HARMLESS FROM ANY LOSS, LIABILITY, CLAIM OR EXPENSE
WHICH ANY SUCH PERSON MAY INCUR OR SUFFER AS A RESULT OF A BREACH BY
THE COMPANY OR ITS SUBSIDIARIES OR AFFILIATES, AS THE CASE MAY BE, OF
THIS COVENANT.  The Company shall not be deemed to have breached or
violated this SECTION 9.3 if the Company or its Subsidiary or
Affiliate, as the case may be, is challenging in good faith by
appropriate proceedings diligently pursued the application or
enforcement of any such Applicable Environmental Laws for which
adequate reserves have been established in accordance with generally
accepted accounting principles.

     9.4  PAYMENT OF TAXES.  The Company will, and will cause each of
its Subsidiaries to, pay, or have paid on its behalf, before the same
become delinquent all taxes, assessments and governmental charges
imposed upon it or upon its property, except to the extent contested
in good faith by appropriate proceedings diligently conducted for
which adequate reserves have been established in accordance with
generally accepted accounting principles.

     9.5  MAINTENANCE OF INSURANCE.  The Company covenants that it and
each of its Subsidiaries will carry and maintain insurance (subject to
self-insurance in the maximum amount of $10,000,000, customary
deductibles and retentions) in at least such amounts and against such
liabilities and hazards and by such methods as customarily maintained
by other companies operating similar businesses and, together with
each delivery of financial statements required by SECTION 9.1(b), will
deliver to the Agent for each Bank an Officer's Certificate specifying
the details of such insurance in effect.  Upon the request of the
Agent or any Bank, the Company shall promptly deliver to the Agent one
or more current certificates of the insurer or insurers providing the
insurance required by this SECTION 9.5 to the effect that such
insurance may not be canceled, reduced or affected in any manner
without 30 days' prior written notice to the Agent.

     9.6  RESTRICTED PAYMENTS AND RESTRICTED INVESTMENTS.  The Company
will not and will not permit any Restricted Subsidiary to (a) make any
Restricted Investment; (b) pay or declare any dividend on any class of
its stock or make any other distribution on account of any class of
its stock, or redeem, purchase or otherwise acquire, directly or
indirectly, any shares of its stock, or (c) make any additional
Investment in the Special Subsidiary (all of the foregoing described
in SUBSECTIONS (b) and (c) above being herein called "RESTRICTED
PAYMENTS") (1) except out of Consolidated Net Earnings Available for
Restricted Payments and Restricted Investments; PROVIDED that the
Company or any wholly owned Restricted Subsidiary may, without
violation of this clause, in a single transaction or a series of
publicly announced related transactions to be completed within six
months, make an Investment in the Special Subsidiary which results in
the ownership by the 

                                 -55-


Company and the wholly owned Restricted Subsidiaries of 100% of the
outstanding general and limited partner interests in the Special
Subsidiary; PROVIDED FURTHER that the amount of such Investment shall
be included in any subsequent computations of Restricted Payments and
of Consolidated Net Earnings Available for Restricted Payments and
Restricted Investments under this Section unless immediately after
giving effect to such Investment in the Special Subsidiary, the
Special Subsidiary is designated as a Restricted Subsidiary; (2)
unless, after giving effect to any such Restricted Investment or
Restricted Payment, as the case may be, (A) no Default shall have
occurred and be continuing and (B) the Company could incur at least
$1.00 of additional Funded Debt without violation of SECTION
9.7(b)(3), and (3) unless, in the case of Investments in the Special
Subsidiary, such Investment shall otherwise be permitted by SECTION
9.7(g).

     "CONSOLIDATED NET EARNINGS AVAILABLE FOR RESTRICTED PAYMENTS AND
RESTRICTED INVESTMENTS" shall mean an amount equal to

     (a)  the sum of (1) $45,000,000; (2) 100% (or minus 100% in case
of a deficit) of Unimpaired Consolidated Net Earnings for the period
(taken as one accounting period) commencing on April 1, 1990 (the
"COMMENCEMENT DATE") and terminating at the end of the last fiscal
quarter preceding the date of any proposed Restricted Investment or
Restricted Payment, as the case may be; (3) the net cash proceeds
received by the Company or any Restricted Subsidiary from the sale of
any shares of its stock on or after the Commencement Date, except (A)
any such proceeds used as a basis, for a prepayment in respect of the
then-outstanding notes issued under the Serial Note Agreement pursuant
to Paragraphs 4A, 4B or 4C thereof and (B) any proceeds from the sale
of stock to the Company or any of its Subsidiaries on or after the
Commencement Date; (4) the net cash proceeds received by the Company
or any Restricted Subsidiary from the sale, on or after the
Commencement Date, of any convertible debt security which has been
converted into stock of the Company or a Restricted Subsidiary, except
(A) any such proceeds used as a basis for a prepayment in respect of
the then-outstanding notes issued under the Serial Note Agreement
pursuant to Paragraphs 4A, 4B or 4C thereof and (B) any proceeds from
the sale of such convertible debt security to the Company or any of
its Subsidiaries; (5) any cash distributions from the Special
Subsidiary received by the Company or any Restricted Subsidiary on or
after the Commencement Date, and (6) any return of capital from
Unrestricted Subsidiaries or Restricted Investments received by the
Company or any Restricted Subsidiary on or after the Commencement
Date, less

     (b)  the sum of all Restricted Investments and all Restricted
Payments made on or after the Commencement Date.

There shall not be included in Restricted Payments or in any
computation of Consolidated Net Earnings Available for Restricted 
                                 -56-


Payments and Restricted Investments (w) dividends paid or declared in
respect of stock held by any Person, or distributions made to any
Person, in stock of the Company or any Restricted Subsidiary; (x)
exchanges of stock of one or more classes of the Company or any
Restricted Subsidiary for common stock of the Company or such
Restricted Subsidiary, as the case may be, or for stock of the Company
or such Restricted Subsidiary, as the case may be, of the same class,
except to the extent that cash or other value is involved in such
exchange; (y) dividends paid or declared in respect of stock held by,
or distributions made to, or redemptions, purchases or other
acquisitions of stock made from, the Company or a wholly owned
Restricted Subsidiary, or (z) any advances to the Special Subsidiary
not in excess of $20,000,000 in the aggregate at any one time
outstanding that are repaid in full within 60 days pursuant to
customary cash management services provided to the Special Subsidiary. 
The term "stock" as used in this Section shall include warrants,
options to purchase stock and redeemable rights.

     9.7  LIEN, DEBT AND OTHER RESTRICTIONS.  The Company will not and
will not permit any Restricted Subsidiary to:

     (a)  LIENS.  Create, assume or suffer to exist any Lien upon any
of its properties or assets, whether now owned or hereafter acquired
except

          (1)  Liens for taxes or assessments or other governmental
charges or levies not yet due or which are being actively contested in
good faith by appropriate proceedings;

          (2)  Liens (including mechanics' and materialmen's liens,
landlord liens, easements, rights-of-way or the like) incidental to
the conduct of its business or the ownership of its property and
assets which are not incurred in connection with the borrowing of
money or the obtaining of advances or credit (other than advances or
credit on open account, includable in current liabilities, for goods
and services in the ordinary course of business and on terms and
conditions which are customary in the oil, gas and mineral exploration
and development business) or the guaranteeing of the obligations of
another Person, and which do not in the aggregate materially detract
from the value of its property or assets or materially impair the use
thereof in the operation of its business;

          (3)  Liens for lessor's royalties, overriding royalties, net
profits interests, carried interests, reversionary interests and other
similar burdens, production sales contracts, division orders,
contracts for the sale, purchase, exchange, or processing of
hydrocarbons, unitization and pooling designations, declarations,
orders and agreements, operating agreements, agreements of
development, area of mutual interest agreements, gas balancing or
deferred production agreements, processing agreements, plant
agreements, pipeline gathering and transportation agreements,
injection, repressuring and recycling agreements, salt water or 

                                 -57-


other disposal agreements, seismic or geophysical permits or
agreements, and other agreements which are customary in the oil, gas
and mineral exploration and development business or in the business of
processing gas and gas condensate production for the extraction of
products therefrom, if the net cumulative effect of such burdens does
not operate to reduce the net revenue interest of any oil and gas
properties to less than (A) the "Net Revenue Interest" set forth in
the Most Recent Engineering Report for those oil and gas properties
included in the Most Recent Engineering Report or (B) the net revenue
interest so acquired for those oil and gas properties acquired after
the date of the Most Recent Engineering Report; PROVIDED that such
Liens are not incurred in connection with the borrowing of money or
the obtaining of advances or credit (other than advances or credit on
open account, includable in current liabilities, for goods and
services in the ordinary course of business and on terms and
conditions which are customary in the oil, gas and mineral exploration
and development business) or the guaranteeing of the obligations of
another Person;

          (4)  Liens described in SCHEDULE II securing Debt of the
Company or a Restricted Subsidiary set forth in SCHEDULE II;

          (5)  the Springing Lien, Liens existing on any real property
of any Person at the time such Person becomes a Restricted Subsidiary,
or any Liens existing prior to the time of acquisition upon any real
property acquired by the Company or any Restricted Subsidiary through
purchase, merger or consolidation or otherwise, whether or not the
obligation secured by such Lien is assumed by the Company or such
Restricted Subsidiary; PROVIDED that except as otherwise permitted by
SECTION 9.7(a), any such Springing Lien or Lien (A) shall not encumber
any other property of the Company or any Restricted Subsidiary and (B)
shall not have been created in anticipation of such Person becoming a
Restricted Subsidiary or in anticipation of the acquisition by the
Company or any Restricted Subsidiary of the real property secured
thereby;

          (6)  Liens placed on property at the time of acquisition,
construction, development or improvement thereof, or created in
respect of such property within six months after the time of
acquisition thereof or the commencement of construction, development
or improvement thereof, as the case may be, to secure all or a portion
of (or to secure Debt incurred to pay all or a portion of) the
purchase price of such acquisition, or the cost of such construction,
development or improvement, as the case may be; PROVIDED that (A) such
property is not and shall not thereby become encumbered in an amount
in excess of the lesser of the cost or fair market value thereof; (B)
except as otherwise permitted in SECTION 9.7(a), any such Lien shall
not encumber any other property of the Company or a Restricted
Subsidiary, and (C) any such Lien shall not encumber property of the
Company or a Restricted Subsidiary for the purpose of securing an
obligation of the Company or a Restricted Subsidiary or securing a
Guaranty by the Company or any 

                                 -58-


Restricted Subsidiary in connection with the sale, exchange, transfer
or other disposition by the Company or a Restricted Subsidiary of net
profits interests; PROVIDED that the Company or a Restricted
Subsidiary may assign all or part of the proceeds of production of
property in which a net profits interest has been granted to secure
its obligation to make net profits interests payments therefrom; and
PROVIDED FURTHER that any such Lien shall not encumber any other
property of the Company or any Restricted Subsidiary;

          (7)  Liens on the capital stock of a Restricted Subsidiary
acquired after April 11, 1990 by the Company or a Restricted
Subsidiary and created or assumed contemporaneously with such
acquisition, to secure Debt assumed or incurred to finance all or a
part of the purchase price of such acquisition;

          (8)  Liens on the capital stock of an Unrestricted Subsid-
iary other than the Special Subsidiary;

          (9)  from and after the time that the Company and the wholly
owned Restricted Subsidiaries shall have become the owners of all of
the outstanding general and limited partner interests in the Special
Subsidiary, (A) Liens on all or any portion of the limited partner
interests in SFEP, at such times as SFEP shall be an Unrestricted
Subsidiary or (B) at such times as SFEP shall be a Restricted
Subsidiary, Liens securing Debt incurred to finance all or a part of
the purchase price of limited partner interests in the Special
Subsidiary acquired by the Company and the wholly owned Restricted
Subsidiaries from Persons other than the Special Subsidiary in a
single transaction or a series of publicly announced related
transactions that were completed within six months and that result in
the ownership by the Company and the wholly owned Restricted
Subsidiaries of 100% of the general and limited partner interests
therein; PROVIDED that the Liens described in this CLAUSE (B) shall
extend only to the limited partner interests so acquired;

          (10) Liens on property of the Company or a Restricted
Subsidiary to secure Debt assumed or incurred in the form of
Capitalized Lease Obligations or industrial revenue bonds, pollution
control bonds or similar tax-exempt financings; PROVIDED that any such
Lien shall not encumber any property of the Company or a Restricted
Subsidiary other than the property the acquisition or construction of
which is financed or refinanced, in whole or in part, with proceeds
from such Debt;

          (11) Liens created pursuant to the Security Documents under
the Amended and Restated Revolving Credit Agreement;

          (12) any Lien renewing or extending any Lien permitted by
CLAUSES (4), (5), (6), (7), (8), (9), (10) or (11) above; PROVIDED 

                                 -59-


that the principal amount of the Debt secured thereby is not increased
and such Lien is not extended to other property; and 

          (13) other Liens on any property of the Company or a
Restricted Subsidiary securing any Funded Debt of the Company or a
estricted Subsidiary permitted by SECTION 9.7(b)(3)(C) or (4)(C).

     (b)  DEBT.  Create, incur, assume or suffer to exist any Debt,
except

          (1)  Funded Debt of the Company under the Amended and
Restated Revolving Credit Agreement and Funded Debt of the Company
hereunder or represented by the notes issued pursuant to the Serial
Note Agreement;

          (2)  Funded Debt of the Company or any Restricted Subsidiary
set forth in SCHEDULE II, which may not be renewed, extended, refunded
or permitted to remain outstanding after the stated maturities thereof
except by the Person primarily liable thereon and unless, after giving
effect to such renewal, extension or refunding, neither the principal
amount thereof nor the aggregate Funded Debt of the Company and the
Restricted Subsidiaries is increased thereby;

          (3)  Funded Debt of the Company if at the time it is
created, incurred or assumed and after giving effect thereto, to the
receipt of the proceeds thereof, and to the concurrent retirement of
any Debt, (A) the aggregate amount of all Funded Debt of the Company
and the Restricted Subsidiaries shall not exceed 65% of Consolidated
Net Tangible Assets; (B) Consolidated Net Earnings Available for Fixed
Charges for the four fiscal quarters of the Company (taken as a single
period) most recently ended shall equal at least 225% of Fixed Charges
for the four fiscal quarters of the Company (taken as a single period)
commencing with and including the fiscal quarter during which such
Funded Debt is created, incurred or assumed, and (C) (1) for any such
creation, incurrence or assumption occurring prior to December 31,
1998, Priority Debt (other than Existing Priority Debt) shall not
exceed the lesser of (y)(I) 40% of Consolidated Net Tangible Assets
minus (II) Existing Priority Debt and (z) 33% of Consolidated Net
Tangible Assets, and (2) for any such creation, incurrence or
assumption occurring on or after December 31, 1998, Priority Debt
shall not exceed 33% of Consolidated Net Tangible Assets, and (3) if
such Funded Debt is Secured Debt, Special Debt shall not exceed 10% of
Consolidated Net Tangible Assets;

          (4)  Funded Debt of a Restricted Subsidiary if at the time
it is created, incurred or assumed and after giving effect thereto, to
the receipt of the proceeds thereof, and to the concurrent retirement
of any Debt, (A) the aggregate amount of all Funded Debt of the
Company and the Restricted Subsidiaries shall not exceed 65% of
Consolidated Net Tangible Assets; (B)

                                 -60-


Consolidated Net Earnings Available for Fixed Charges for the four
fiscal quarters of the Company (taken as a single period) most
recently ended shall equal at least 225% of Fixed Charges for the four
fiscal quarters of the Company (taken as a single period) commencing
with and including the fiscal quarter during which such Funded Debt is
created, incurred or assumed, and (C) (1) for any such creation,
incurrence or assumption occurring prior to December 31, 1998,
Priority Debt (other than Existing Priority Debt) shall not exceed the
lesser of (y)(I) 40% of Consolidated Net Tangible Assets minus (II)
Existing Priority Debt and (z) 33% of Consolidated Net Tangible
Assets, and (2) for any such creation, incurrence or assumption
occurring on or after December 31, 1998, Priority Debt shall not
exceed 33% of Consolidated Net Tangible Assets, and (3) Special Debt
shall not exceed 10% of Consolidated Net Tangible Assets;

          (5)  Debt of the Company owing to a wholly owned Restricted
Subsidiary which is subordinated to the Obligations upon terms set
forth on SCHEDULE V, and Debt of a Restricted Subsidiary owing to the
Company or any other wholly owned Restricted Subsidiary; and

          (6)  Current Debt of the Company not secured by any Lien on
any property owned by the Company or the Restricted Subsidiaries;
PROVIDED that for a period of at least 45 consecutive days in each
period of 18 consecutive months commencing April 1, 1990, the amount
of Current Debt (other than Current Debt existing pursuant to
customary cash management services provided to the Special Subsidiary
which is repaid in full within 60 days) permitted by this clause shall
at no time exceed the maximum amount of Funded Debt that the Company
could then incur under SECTION 9.7(b)(3) without violation thereof.

     For purposes of this SECTION 9.7(b), any Debt (i) which is
extended, renewed or refunded shall be deemed to have been incurred
when extended, renewed or refunded (except as provided pursuant to
CLAUSE (2) above); (ii) of a Person when it becomes, or is merged
into, or is consolidated with a Restricted Subsidiary or the Company
shall be deemed to have been incurred at that time; (iii) which is
permitted by CLAUSE (5) above and which is owing to a wholly owned
Restricted Subsidiary when it ceases to be a wholly owned Restricted
Subsidiary shall be deemed to have been incurred at that time; (iv) of
a Restricted Subsidiary which is owing to the Company or any other
Restricted Subsidiary shall be deemed to have been incurred at the
time the Company or such other Restricted Subsidiary disposes of such
Debt to any Person other than the Company or a wholly owned Restricted
Subsidiary; (v) which is Funded Debt of the Company or a Restricted
Subsidiary consisting of a reimbursement obligation in respect of a
letter of credit or similar instrument shall be deemed to be incurred
when such letter of credit or similar instrument is issued, or (vi)
which is Funded Debt of the type described in CLAUSE (b) of the
definition of 

                                 -61-


Funded Debt, or any Guaranty of such Funded Debt, shall not be deemed
to have been created, incurred or assumed, as the case may be, at the
time it becomes Funded Debt, but shall be included in all subsequent
calculations of Funded Debt for all purposes of this Agreement.

     (c)  SALE OF LESS THAN SUBSTANTIALLY ALL ASSETS.  Sell, exchange,
transfer or otherwise dispose of part, but less than all or
substantially all, of their respective assets, unless

          (1)  such sale, exchange, transfer or other disposition is
made in the ordinary course of business (including abandonments,
farm-ins, farm-outs, leases and subleases of developed or undeveloped
properties owned or held by the Company or any Restricted Subsidiary
that are made or entered into in the ordinary course of business, but
EXCLUDING, however, any sale of net profits interests in developed oil
and gas properties); or

          (2)  after giving effect to such sale, exchange, transfer or
other disposition, (A) the aggregate net book value of (i) all assets
of the Company and the Restricted Subsidiaries (including the sale of
net profits interests in developed oil and gas properties) sold,
exchanged, transferred or otherwise disposed of (on a consolidated
basis) (but excluding assets sold, exchanged, transferred or otherwise
disposed of in the ordinary course of business pursuant to SECTION
9.7(c)(1)) during the period of 12 consecutive months immediately
preceding such sale, exchange, transfer or other disposition and (ii)
the assets of all Restricted Subsidiaries, the stock of which have
been sold or otherwise disposed of pursuant to SECTION 9.7(d)(2)(A)
during such 12-month period shall not exceed 10% of Consolidated Net
Tangible Assets of the Company and the Restricted Subsidiaries as of
the end of the fiscal quarter immediately preceding or coinciding with
such sale, exchange, transfer or other disposition, and (B) the assets
described in the foregoing CLAUSE (A) shall not have contributed more
than 10% of EBITD of the Company and the Restricted Subsidiaries for
the four most recently completed fiscal quarters taken as a single
accounting period; or

          (3)  after giving effect to such sale, exchange, transfer or
other disposition, (A) the aggregate net book value of (i) all assets
of the Company and the Restricted Subsidiaries (including the sale of
net profits interests in developed oil and gas properties) sold,
exchanged, transferred or otherwise disposed of (on a consolidated
basis) (but excluding assets sold, exchanged, transferred or otherwise
disposed of pursuant to SECTION 9.7(c)(1) and (2)) during the period
of 12 consecutive months immediately preceding such sale, exchange,
transfer or other disposition and (ii) the assets of all Restricted
Subsidiaries, the stock of which has been sold or otherwise disposed
of pursuant to SECTION 9.7(d)(2)(B) during such 12-month period, shall
not exceed 10% of Consolidated Net Tangible Assets of the Company and
the Restricted 

                                 -62-


Subsidiaries as of the end of the fiscal quarter immediately preceding
or coinciding with such sale, exchange, transfer or other disposition;
(B) the assets described in the foregoing CLAUSE (A) shall not have
contributed more than 10% of EBITD for the four most recently
completed fiscal quarters taken as a single accounting period, and (C)
within six months after such sale, exchange, transfer or other
disposition, the net proceeds thereof are applied toward, or the
exchange results in, (1) the acquisition by the Company or a
Restricted Subsidiary of (i) assets which have an aggregate fair
market value at least equal to the net proceeds received by the
Company and its Restricted Subsidiaries from such sale, exchange,
transfer or other disposition; (ii) if the assets so sold, exchanged,
transferred or otherwise disposed of were located in the United States
of America or Canada, the assets acquired are located in the United
States of America or Canada, and (iii) the assets so acquired are of a
type usual and customary in the oil and gas business; PROVIDED that no
Liens shall at any time exist on the assets so acquired which secure
any Debt except as permitted by SECTION 9.7(a)(13) or (2) the
prepayment of an aggregate principal amount of all Obligations plus
accrued interest and premium, if any, thereon in accordance with this
Agreement and the Amended and Restated Revolving Credit Agreement, or
the payment of an aggregate principal amount of other Funded Debt
(other than Funded Debt subordinate in right of payment to the
Obligations) plus accrued interest and premium, if any, in either case
in an amount at least equal to the aggregate net proceeds that the
Company or a Restricted Subsidiary receives from the sale, exchange,
transfer or other disposition of such assets.

     (d)  SALE OF STOCK OF RESTRICTED SUBSIDIARIES.  Sell or otherwise
dispose of, or part with control of, any shares of stock of any
Restricted Subsidiary, except (1) to the Company or another wholly
owned Restricted Subsidiary and (2) that all shares of stock of any
Restricted Subsidiary at the time owned by the Company and all
Restricted Subsidiaries may be sold as an entirety for a cash
consideration which represents the fair market value (as determined in
good faith by the Board of Directors of the Company) at the time of
sale of the shares of stock so sold; PROVIDED that for purposes of
this exception:

          (A)  (i) the net book value of the assets of such Restricted
Subsidiary together with (x) the net book value of the assets of any
other Restricted Subsidiary the stock of which was sold during the
preceding 12-month period and (y) the net book value of the assets of
the Company and all Restricted Subsidiaries sold, exchanged,
transferred or otherwise disposed of pursuant to SECTION 9.7(c)(2)
during the preceding 12-month period, does not represent more than 10%
of Consolidated Net Tangible Assets as of the end of the fiscal
quarter immediately preceding or coinciding with such sale, exchange,
transfer or other disposition and (ii) the earnings of such Restricted
Subsidiary together with (x) the earnings of any other Restricted
Subsidiary the stock of which was 

                                 -63-


sold or otherwise disposed of pursuant to the exception described in
this CLAUSE (A) during the preceding 12-month period and (y) the
earnings attributable to the assets sold, exchanged, transferred or
otherwise disposed of pursuant to SECTION 9.7(c)(2) during such
12-month period, do not represent more than 10% of EBITD for the four
most recently completed fiscal quarters taken as a single accounting
period; and PROVIDED FURTHER that, at the time of such sale, such
Restricted Subsidiary shall not own, directly or indirectly, any
shares of stock of the Company or any other Restricted Subsidiary
unless all of the shares of stock of such other Restricted Subsidiary
owned, directly or indirectly, by the Company and all Restricted
Subsidiaries are simultaneously being sold as permitted by the
exception described in this CLAUSE (A); or

          (B) (i) the net book value of the assets of such Restricted
Subsidiary together with (x) the net book value of the assets of any
other Restricted Subsidiary the stock of which was sold during the
preceding 12-month period and (y) the net book value of the assets of
the Company and any Restricted Subsidiary sold, exchanged, transferred
or otherwise disposed of pursuant to SECTION 9.7(c)(3) during the
preceding 12-month period, does not represent more than 10% of the
Consolidated Net Tangible Assets as of the end of the fiscal quarter
immediately preceding or coinciding with such sale, exchange, transfer
or other disposition; (ii) the earnings of such Restricted Subsidiary
together with (x) the earnings of any other Restricted Subsidiary the
stock of which was sold or otherwise disposed of pursuant to the
exception described in this CLAUSE (B) during the preceding 12-month
period and (y) the earnings attributable to the assets sold,
exchanged, transferred or otherwise disposed of pursuant to SECTION
9.7(c)(3) during such 12-month period, do not represent more than 10%
of EBITD for the four most recently completed fiscal quarters taken as
a single accounting period, and (iii) within six months after such
sale or other disposition, the proceeds thereof are applied toward (i)
the acquisition by the Company or a Restricted Subsidiary of (1)
assets which have an aggregate fair market value at least equal to the
net proceeds received by the Company and the Restricted Subsidiaries
from such sale or other disposition and (2) the assets so acquired are
of a type usual and customary in the oil and gas business; PROVIDED
that no Liens shall at any time exist on the assets so acquired which
secure any Debt except as permitted by SECTION 9.7(a)(13), or (ii) the
prepayment of an aggregate principal amount of all Obligations in
accordance with this Agreement and the Amended and Restated Revolving
Credit Agreement, or the payment of an aggregate principal amount of
other Funded Debt (other than Funded Debt subordinate in right of
payment to the Obligations) plus accrued interest and premium, if any,
in either case in an amount at least equal to the aggregate net
proceeds that the Company or a Restricted Subsidiary receives from the
sale or other disposition; and PROVIDED FURTHER that, at the time of
such sale or other disposition, such Restricted Subsidiary shall not
own, directly or indirectly, (y) any shares of stock of the Company 

                                 -64-


or any other Restricted Subsidiary unless all of the shares of stock
of such other Restricted Subsidiary owned, directly or indirectly, by
the Company and all Restricted Subsidiaries are simultaneously being
sold as permitted by the exception described in this CLAUSE (B).

     (e)  MERGER AND SALE OF ALL OR SUBSTANTIALLY ALL ASSETS.  Merge
or consolidate with or into any other Person or convey, exchange,
transfer or otherwise dispose of all or a substantial part of its
assets (I.E., assets which could not otherwise be disposed of pursuant
to SECTION 9.7(c)(2) or (3)) to any Person except that 

          (1)  any wholly owned Restricted Subsidiary may merge with
the Company (PROVIDED that the Company shall be the continuing or
surviving corporation) or with any one or more other wholly owned
Restricted Subsidiaries;

          (2)  any Restricted Subsidiary may sell, exchange, transfer
or otherwise dispose of any of its assets to the Company or to a
wholly owned Restricted Subsidiary;

          (3)  any Restricted Subsidiary may sell, exchange, transfer
or otherwise dispose of all or substantially all of its assets subject
to the conditions and provisions specified in SECTIONS 9.7(c)(2) and
(3);

          (4)  any Restricted Subsidiary may merge into or consolidate
with any Person which does not thereupon become a Restricted
Subsidiary, subject to the conditions and provisions specified in
SECTION 9.7(d) with respect to a sale or other disposition of the
stock of such Restricted Subsidiary;

          (5)  any Restricted Subsidiary may permit any Person to be
merged into such Restricted Subsidiary or may consolidate with or
merge into a Person which thereupon becomes a Restricted Subsidiary;
PROVIDED that immediately after any such merger or consolidation, no
Default shall have occurred and be continuing;

          (6)  the Company may permit any Person to be merged into the
Company (such that the Company shall be the continuing or surviving
corporation); and

          (7)  the Company may permit any corporation to consolidate
with the Company and the Company may merge into or otherwise dispose
of its assets as an entirety or substantially as an entirety to any
solvent corporation organized under the laws of the United States of
America or any state thereof and having at least 80% of its
consolidated assets located in the United States of America and Canada
which expressly assumes in writing the due and punctual performance of
the obligations of the Company under the Credit Documents, to the same
extent as if such successor or

                                  65


transferee corporation had originally executed the Credit Documents in
the place of the Company (it being agreed that such assumption shall,
upon the request of any Bank and at the expense of such successor or
transferee corporation, be evidenced by the exchange of each
outstanding Application for another Application executed by such
successor or transferee corporation, with such changes in phraseology
and form as may be appropriate but in substance of like terms as the
Application surrendered for such exchange and of like unpaid principal
amount, and that each Application executed pursuant to this Agreement
after such assumption shall be executed by and in the name of such
successor or transferee corporation);

PROVIDED that for purposes of SECTIONS 9.7(e)(6) and (7) immediately
after such merger, consolidation, sale or other disposition, and after
giving effect thereto, (x) such successor or transferee Person could
incur at least $1.00 of additional Funded Debt without violation of
SECTION 9.7(b)(3) and (y) no Default shall have occurred and be
continuing.  As soon as practicable, and in any event at least 75 days
prior to the proposed consummation date of any merger, consolidation,
sale or other disposition described in SECTION 9.7(e)(7), the Company
shall give written notice thereof to each Bank describing in
reasonable detail the proposed transaction, the date on which it is
proposed to be consummated and the identity, jurisdiction of
organization, and geographic composition of assets of the proposed
successor or transferee corporation.  No disposition by the Company of
its assets as an entirety or substantially as an entirety under
SECTION 9.7(e)(7) shall release the Company as the applicant under any
Application from its liability as obligor thereon.

     (f)  SALE AND LEASEBACK.  Enter into any Sale and Leaseback
Transaction unless:

          (1)  immediately after giving effect thereto and to the
application of any sales proceeds received in connection therewith,
Special Debt shall not exceed 10% of the Consolidated Net Tangible
Assets; or

          (2)  the net sales proceeds received by the Company or a
Restricted Subsidiary in respect of the assets sold pursuant to such
Sale and Leaseback Transaction are greater than or equal to the fair
market value of the assets sold (which determination shall be based
upon a written opinion (the cost of which shall be borne exclusively
by the Company) as to valuation from an independent valuation expert
selected by the Company) and such proceeds are concurrently applied to
(A) the purchase, acquisition, development or construction of assets
having a value at least equal to such net proceeds, and to be used in
the Company's or such Restricted Subsidiary's business; PROVIDED that
no Liens shall at any time exist on such assets which secure any Debt
except as permitted by SECTION 9.7(a)(13); (B) the prepayment in
accordance with this Agreement of any aggregate principal amount of
all the Obligations 

                                 -66-


(plus accrued interest and premium, if any) at least equal to the
amount of such net proceeds; or (C) the payment of other Funded Debt
(other than Funded Debt subordinate in right of payment to the
Obligations) in an aggregate principal amount at least equal to the
amount of such net sales proceeds; or

          (3)  the Sale and Leaseback Transaction involves the sale of
assets by the Company to a wholly owned Restricted Subsidiary or by a
Restricted Subsidiary to the Company or to another wholly owned
Restricted Subsidiary; PROVIDED that if the Company is the seller
under any such Sale and Leaseback Transaction, its lease obligations
thereunder shall be subordinated to the Obligations represented by the
Applications upon terms set forth on SCHEDULE V.

     (g)  INVESTMENTS IN THE SPECIAL SUBSIDIARY.  Directly or
indirectly make an Investment in the Special Subsidiary after
March 31, 1990, unless (1) the aggregate amount of all other
Investments in the Special Subsidiary made, directly or indirectly, by
the Company and the Restricted Subsidiaries after March 31, 1990 shall
not exceed the aggregate amount of cash distributions received by the
Company and the Restricted Subsidiaries from the Special Subsidiary
after March 31, 1990 or (2) in the opinion of the Board of Directors
of the Company, the Investment would not impair the ability of the
Company to make when due any payment (including any prepayment
required by SECTION 3 of principal of or interest on the Reimbursement
Obligations.

     (h)  TRANSACTIONS WITH AFFILIATES.  Directly or indirectly
purchase, acquire or lease any property from, or sell, transfer or
lease any property to, or otherwise deal with, in the ordinary course
of business or otherwise, (1) any Affiliate (except any employee
compensation benefit plan or any Restricted Subsidiary) or (2) any
Person (other than a Restricted Subsidiary) in which an Affiliate or
the Company (directly or indirectly) owns, beneficially or of record,
5% or more of the outstanding voting stock or similar equity interest,
except that (A) any Affiliate may be a director, officer or employee
of the Company or any Restricted Subsidiary and may be paid reasonable
compensation in connection therewith and (B) subject to applicable
fiduciary standards with respect to the Special Subsidiary, acts and
transactions that would otherwise be prohibited by this Subsection may
be performed or engaged in if upon terms not less favorable to the
Company or any Restricted Subsidiary than if no relationship described
in CLAUSES (1) and (2) above existed.

     (i)  TAX CONSOLIDATION.  Except for the Tax Allocation
Agreements, the Company will not, and will not permit any of its
Subsidiaries to, file or consent to the filing of any consolidated
income tax return with any Person unless such other Person shall have
agreed in writing with the Company that the Company's or such
Subsidiary's liability with respect to taxes as a result of the filing
of any such consolidated income tax return with such Person 

                                 -67-


shall not be materially greater, nor the receipt of any tax benefits
materially less, than they would have been had the Company and its
Subsidiaries continued to file a consolidated income tax return with
the Company as the parent corporation.

     9.8  ISSUANCE OF STOCK BY RESTRICTED SUBSIDIARIES.  The Company
covenants that it will not permit any Restricted Subsidiary (either
directly or indirectly, by the issuance of rights or options for, or
securities convertible into, such shares) to issue, sell or otherwise
dispose of any shares of any authorized but unissued or treasury class
of such Restricted Subsidiary's stock (other than directors'
qualifying shares) except to the Company or another Restricted
Subsidiary.

     9.9  COVERAGE RATIOS.  As of the end of each fiscal quarter of
the Company, and each delivery of a Required Reserve Report or
Optional Reserve Report, the Company shall be in compliance with all
Required Ratios (except for any noncompliance resulting solely from an
Engineering Shortfall, and then only prior to the cure thereof
permitted by SECTION 10.1(e)).

     9.10 PREPAYMENT OF JUNIOR SECURITIES.  Without the prior written
consent of the Required Banks, the Company shall not prepay (or
deposit any property to defease) any indebtedness consisting of Junior
Securities before the payment in full of all indebtedness under the
Credit Documents.     

     Section 10.  DEFAULTS.

     10.1 EVENTS OF DEFAULT.  If one or more of the following events
(herein called "EVENTS OF DEFAULT") shall occur and be continuing:

     (a)  the Company shall fail to pay any principal of any
Reimbursement Obligation or any fee or other principal amount payable
hereunder or under any other Credit Document when due, or shall fail
to pay any interest on any amount hereunder or under any other Credit
Document for more than three days after the date due; or

     (b)  any member of the Combined Group shall default in any
payment of principal of or interest on any other obligation for money
borrowed (or any Capitalized Lease Obligation, any obligation under a
conditional sale or other title retention agreement, any obligation
issued or assumed as full or partial payment for property whether or
not secured by a purchase money mortgage or any obligation under notes
payable or drafted accepted representing extensions of credit) beyond
any period of grace provided with respect thereto, or any member of
the Combined Group shall fail to perform or observe any other
agreement, term or condition contained in any agreement under which
any such obligation is created (or if any other event thereunder or
under any such agreement shall occur 

                                 -68-



and be continuing) and the effect of such failure or other event is to
cause, or to permit the holder or holders of such obligation (or a
trustee on behalf of such holder or holders) to cause, such obligation
to become due prior to any stated maturity, or any member of the
Combined Group shall fail to pay any Guaranty relating to Debt for
borrowed money in accordance with its terms, PROVIDED that the
aggregate amount of all obligations as to which such a payment default
shall occur and be continuing or such a failure or other event causing
or permitting acceleration shall occur and be continuing shall exceed
$10,000,000; or

     (c)  any representation or warranty by the Company or any of its
officers in any Credit Document or in any writing furnished to the
Agent or the Banks in connection herewith shall prove to have been
false or misleading in any material respect as of the date as of which
it was made; or

     (d)  the Company shall default in the performance of any of its
obligations under SECTIONS 9.6 through 9.8 or under SECTION 9.9 (other
than a Default resulting solely from an Engineering Shortfall) or
under SECTION 9.10; or

     (e)  the Company shall deliver any Independent Engineering Report
and related Coverage Report to the Banks in accordance with SECTION
9.1 or SECTION 2.2(d) reflecting noncompliance with any Required Ratio
and such noncompliance shall result solely from an Engineering
Shortfall and shall not be cured (such cure to be evidenced by a new
Coverage Report demonstrating compliance with all Required Ratios) on
or before the date 180 days after the Company delivers such
Independent Engineering Report and related Coverage Report; or

     (f)  the Company shall default in the performance of any of its
obligations in any Credit Document other than those specified
elsewhere in this SECTION 10.1 and such default shall not be remedied
within 30 days after any executive officer of the Company obtains
actual knowledge thereof; or 

     (g)  any member of the Combined Group shall (1) make an
assignment for the benefit of creditors; (2) generally fail to pay its
debts as such debts become due, or (3) admit in writing its inability
to generally pay its debts as such debts become due; or

     (h)  a Governmental Authority shall enter any decree or order for
relief in respect of any member of the Combined Group under any
bankruptcy, reorganization, compromise, arrangement, insolvency,
readjustment of debt, dissolution or liquidation or similar law,
whether now or hereafter in effect (herein called the "BANKRUPTCY
LAW"), of any jurisdiction; or

     (i)  any member of the Combined Group shall petition or apply to
any Governmental Authority for, or consent to, the appointment 

                                 -69-


of, or taking possession by, a trustee, receiver, custodian,
liquidator or similar official of such member of the Combined Group,
or of any substantial part of the assets of such member of the
Combined Group, or shall commence a voluntary case under the
Bankruptcy Law of the United States or any proceedings (other than
proceedings for the voluntary liquidation and dissolution of a
Restricted Subsidiary) relating to any member of the Combined Group
under the Bankruptcy Law of any other jurisdiction; or

     (j)  any such petition or application referred to in SECTION
10.1(i) shall be filed, or any such proceedings referred to in SECTION
10.1(i) shall be commenced, against any member of the Combined Group
and such member of the Combined Group by any act shall indicate its
approval thereof, consent thereto or acquiescence therein, or an
order, judgment or decree shall be entered appointing any such
trustee, receiver, custodian, liquidator or similar official, or
approving the petition in any such proceedings, and such order,
judgment or decree shall remain unstayed and in effect for more than
60 consecutive days; or

     (k)  any order, judgment or decree shall be entered in any
proceedings against any member of the Combined Group decreeing the
dissolution of any member of the Combined Group and such order,
judgment or decree shall remain unstayed and in effect for more than
the appeal time provided by law; or

     (l)  any order, judgment or decree shall be entered in any
proceedings against any member of the Combined Group decreeing a
split-up of such member of the Combined Group which requires (1) the
divestiture of assets which exceed, or the divestiture of partnership
interest in the Special Subsidiary or of the stock of a Restricted
Subsidiary whose assets exceed, 10% of Consolidated Net Tangible
Assets as of the end of the fiscal quarter immediately preceding or
coinciding with such divestiture or (2) the divestiture of assets or
stock of a Restricted Subsidiary or assets of or partnership interest
in the Special Subsidiary, which shall have contributed more than 10%
of EBITD for the four most recently completed fiscal quarters, and
such order, judgment or decree shall remain unstayed and in effect for
more than 60 consecutive days; or

     (m)  any judgment or order, or series of judgments or orders, for
the payment of money in an amount in excess of $5,000,000 shall be
rendered against any member of the Combined Group and the same shall
not be discharged (or provision shall not be made for such discharge),
or a stay of execution thereof shall not be procured, within the
appeal time provided by law from the date of entry thereof, or such
member of the Combined Group shall not, within said appeal time, or
such longer period during which execution of the same shall have been
stayed, appeal therefrom and cause the execution thereof to be stayed
during such appeal; or

                                 -70-


     (n)  the Company or any ERISA Affiliate shall fail to pay when
due an amount or amounts aggregating in excess of $5,000,000 which it
shall have become liable to pay with respect to any Plan; or notice of
intent to terminate a Plan or Plans (other than a multiemployer plan
under Section 4001(a)(3) of ERISA) having aggregate Unfunded
Liabilities in excess of $5,000,000 shall be filed under Title IV of
ERISA by the Company or any ERISA Affiliate, any plan administrator or
any combination of the foregoing; or the PBGC shall institute
proceedings under Title IV of ERISA to terminate or to cause a trustee
to be appointed to administer any Plan or Plans (other than a
multiemployer plan under Section 4001(a)(3) of ERISA) having aggregate
Unfunded Liabilities in excess of $5,000,000 or a proceeding shall be
instituted by a fiduciary of any such Plan or Plans against the
Company or any ERISA Affiliate to enforce Section 515 or 4219(c)(5) of
ERISA; or the Company or any ERISA Affiliate shall incur a complete or
partial withdrawal liability under Title IV of ERISA in an annual
amount in excess of $2,000,000 (and in the aggregate $5,000,000) in
connection with any Plan; or a condition shall exist by reason of
which the PBGC would be entitled to obtain a decree adjudicating that
any Plan or Plans having aggregate Unfunded Liabilities in excess of
$5,000,000 must be terminated; or there shall occur any event or
condition that might reasonably constitute grounds for the termination
of any Plan or Plans having aggregate Unfunded Liabilities in excess
of $5,000,000 or with respect to such Plan or Plans either the
imposition of any liability in excess of $5,000,000 (other than
contributions in the ordinary course) or any Lien provided under
Section 4068 of ERISA securing an amount in excess of $5,000,000 on
any property of the Company or any ERISA Affiliate; provided, however,
any amounts owing by Santa Fe Pacific Corporation pursuant to the
ERISA Indemnification Agreement between Santa Fe Pacific Corporation
and the Company shall first be offset against the dollar threshold
amounts set forth above before any such condition or event constitutes
an event of default under this paragraph; or

     (o)  one or more demands for payment is made upon the Company by
Santa Fe Pacific Corporation or any other Person pursuant to the Tax
Indemnification Agreement and such demands would exceed $5,000,000 in
the aggregate; or 

     (p)  any Change of Control shall occur; or

     (q)  any Event of Default shall occur and be continuing under the
Amended and Restated Revolving Credit Agreement,

THEREUPON:  (I) the Agent may (and, if directed by the Required Banks,
shall) do any or all of the following: (a) terminate any Letter of
Credit providing for such termination by sending a notice of
termination as provided therein; (b) declare the Commitments
terminated (whereupon the Commitments shall be terminated); and (c)
declare the principal amount then outstanding of and the accrued 

                                 -71-


interest on all Reimbursement Obligations and all fees and all other
amounts payable hereunder and under the Applications to be forthwith
due and payable, whereupon such amounts shall be and become
immediately due and payable, without notice (including notice of
acceleration and notice of intent to accelerate), presentment, demand,
protest or other formalities of any kind, all of which are hereby
expressly WAIVED by the Company; PROVIDED that in the case of the
occurrence of an Event of Default with respect to the Company referred
to in SECTION 10.1(g) through (l), the Commitments shall be
automatically terminated and the principal amount then outstanding of
and the accrued interest on the Reimbursement Obligations and fees and
all other amounts payable hereunder and under the Applications shall
be and become automatically and immediately due and payable, without
notice (including notice of intent to accelerate and notice of
acceleration) and without presentment, demand, protest or other for-
malities of any kind, all of which are hereby expressly WAIVED by the
Company; (II) each Bank may exercise its rights of offset against each
account and all other property of the Company in the possession of
such Bank, which right is hereby granted by the Company to the Banks;
and (III) the Agent and each Bank may exercise any and all other
rights pursuant to the Credit Documents, at law and in equity. 

     Section 11.  THE AGENT.

     11.1 APPOINTMENT, POWERS AND IMMUNITIES.  Each Bank hereby
irrevocably appoints and authorizes the Agent to act as its Agent
under the Credit Documents and under the Letters of Credit with such
powers as are specifically delegated to the Agent by the terms
thereof, together with such other powers as are reasonably incidental
thereto, including the execution and delivery of the First Amendment
to Deed of Trust (as that term is defined in the Amended and Restated
Revolving Credit Agreement).  The Agent (which term as used in this
SECTION 11 shall include reference to its Affiliates and its own and
its Affiliates' officers, directors, employees and agents) shall (a)
have no duties or responsibilities except those expressly set forth in
the Letters of Credit and the Credit Documents, and shall not by
reason of any Credit Document be a trustee or fiduciary for any Bank;
(b) not be responsible to any Bank for any recitals, statements,
representations or warranties contained in any Credit Document, or in
any certificate or other document referred to or provided for in, or
received by any of them under, any Credit Document, or for the value,
validity, effectiveness, genuineness, enforceability or sufficiency of
any Credit Document or any other document referred to or provided for
therein or any property covered thereby or for any failure by the
Company or any other Person to perform any of its obligations
thereunder; (c) not be required to initiate or conduct any litigation
or collection proceedings hereunder or under any Credit Document
except to the extent requested by the Required Banks (and SECTION 11.7
shall apply), and (d) not be responsible for any action taken or
omitted to be taken by it under any Credit Document 

                                 -72-


or any other document or instrument referred to or provided for
therein or in connection therewith, including pursuant to its own
negligence, except for its own gross negligence or willful misconduct. 
The Agent may employ agents and attorneys-in-fact and shall not be
responsible for the negligence or misconduct of any such agents or
attorneys-in-fact selected by it with reasonable care.  Without in any
way limiting any of the foregoing, each Bank acknowledges that the
Agent shall have no greater responsibility in the operation of the
Letters of Credit than is specified in the Uniform Customs and
Practice of Documentary Credits (1993 Revision, International Chamber
of Commerce Publication No. 500).

     11.2 RELIANCE BY AGENT.  The Agent shall be entitled to rely upon
any certification, notice or other communication (including any
thereof by telephone, telex, telegram or cable) believed by it to be
genuine and correct and to have been signed or sent by or on behalf of
the proper Person or Persons, and upon advice and statements of legal
counsel (which may be counsel for the Company), independent
accountants and other experts selected by the Agent.  As to any
matters not expressly provided for by any Credit Document, the Agent
shall in all cases be fully protected in acting, or in refraining from
acting, hereunder and thereunder in accordance with instructions of
the Required Banks, and any action taken or failure to act pursuant
thereto shall be binding on all of the Banks.  

     11.3 DEFAULTS.  The Agent shall not be deemed to have knowledge
of the occurrence of a Default (other than the non-payment of
principal of or interest on Reimbursement Obligations) unless it has
received notice from a Bank or the Company specifying such Default and
stating that such notice is a "Notice of Default".  In the event that
the Agent receives such a notice of the occurrence of a Default, the
Agent shall give prompt notice thereof to the Banks (and shall give
each Bank prompt notice of each such non-payment).  The Agent shall
(subject to SECTIONS 11.7 and 12.5) take such action with respect to
such Default as shall be directed by all Banks or the Required Banks,
as appropriate, and within its rights under the Credit Documents and
at law or in equity; PROVIDED that, unless and until the Agent shall
have received such directions, the Agent may (but shall not be
obligated to) take such action, or refrain from taking such action,
permitted hereby with respect to such Default as it shall deem
advisable in the best interests of the Banks and within its rights
under the Credit Documents, at law or in equity.

     11.4 RIGHTS AS A BANK.  With respect to their Commitments, the
Letters of Credit and the Reimbursement Obligations, TCB and
NationsBank in their capacities as Banks hereunder shall have the same
rights and powers hereunder as any other Bank and may exercise the
same as though they were not acting as the Agent or the Co-Agents, and
the term "Bank" or "Banks" shall, unless the context otherwise
indicates, include the Agent and the Co-Agents in their 

                                 -73-


individual capacity.  The Agent and the Co-Agents may (without having
to account therefor to any Bank) accept deposits from, lend money to
and generally engage in any kind of banking, trust, letter of credit,
agency or other business with the Company (and any of its Affiliates)
as if they were not acting as the Agent and the Co-Agents, and the
Agent and the Co-Agents may accept fees and other consideration from
the Company and its Affiliates (in addition to the fees heretofore
agreed to between the Company and the Agent or the Co-Agents) for
services in connection with this Agreement or otherwise without having
to account for the same to the Banks.

     11.5 INDEMNIFICATION.  THE BANKS AGREE TO INDEMNIFY THE AGENT (TO
THE EXTENT NOT REIMBURSED UNDER SECTION 12.3 OR 12.4, BUT WITHOUT
LIMITING THE OBLIGATIONS OF THE COMPANY UNDER SAID SECTIONS 12.3 AND
12.4), RATABLY IN ACCORDANCE WITH THEIR RESPECTIVE COMMITMENTS, FOR
ANY AND ALL LIABILITIES, OBLIGATIONS, LOSSES, DAMAGES, PENALTIES,
ACTIONS, JUDGMENTS, SUITS, COSTS, EXPENSES OR DISBURSEMENTS OF ANY
KIND AND NATURE WHATSOEVER (INCLUDING THE CONSEQUENCES OF THE
NEGLIGENCE OF THE AGENT) WHICH MAY BE IMPOSED ON, INCURRED BY OR
ASSERTED AGAINST THE AGENT IN ANY WAY RELATING TO OR ARISING OUT OF
ANY CREDIT DOCUMENT (AS DEFINED HEREIN) OR ANY OTHER DOCUMENTS
CONTEMPLATED BY OR REFERRED TO THEREIN OR THE TRANSACTIONS CONTEM-
PLATED THEREBY (INCLUDING THE COSTS AND EXPENSES WHICH THE COMPANY IS
OBLIGATED TO PAY UNDER SECTIONS 12.3 AND 12.4 BUT EXCLUDING, UNLESS A
DEFAULT HAS OCCURRED AND IS CONTINUING, NORMAL ADMINISTRATIVE COSTS
AND EXPENSES INCIDENT TO THE PERFORMANCE OF ITS AGENCY DUTIES
HEREUNDER) OR THE ENFORCEMENT OF ANY OF THE TERMS HEREOF OR THEREOF OR
OF ANY SUCH OTHER DOCUMENTS, INCLUDING THE NEGLIGENCE OF THE AGENT;
PROVIDED THAT NO BANK SHALL BE LIABLE FOR ANY OF THE FOREGOING TO THE
EXTENT THEY ARISE FROM THE GROSS NEGLIGENCE OR WILLFUL MISCONDUCT OF
THE PARTY TO BE INDEMNIFIED.  THE OBLIGATIONS OF THE BANKS UNDER THIS
SECTION 11.5 SHALL SURVIVE THE TERMINATION OF THIS AGREEMENT.

     11.6 NON-RELIANCE ON THE AGENT AND OTHER BANKS.  Each Bank agrees
that it has received current financial information with respect to the
Company and that it has, independently and without reliance on the
Agent, the Co-Agents or any other Bank and based on such documents and
information as it has deemed appropriate, made its own credit analysis
of the Company and decision to enter into this Agreement and that it
will, independently and without reliance upon the Agent, the Co-Agents
or any other Bank, and based on such documents and information as it
shall deem appropriate at the time, continue to make its own analysis
and decisions in taking or not taking action under the Credit
Documents.  The Agent and the Co-Agents shall not be required to keep
themselves informed as to the performance or observance by the Company
of any Credit Document or any other document referred to or provided
for therein or to inspect the property or books of the Company or any
other Person.  Except for notices, reports and other documents and
information expressly required to be furnished to the Banks by the
Agent and the Co-Agents under the Credit Documents, the Agent and the
Co-

                                 -74-


Agents shall not have any duty or responsibility to provide any Bank
with any credit or other information concerning the affairs, financial
condition or business of the Company (or any of its Affiliates) which
may come into the possession of the Agent or either Co-Agent.

     11.7 FAILURE TO ACT.  Except for action expressly required of the
Agent under the Credit Documents, the Agent shall in all cases be
fully justified in failing or refusing to act hereunder and thereunder
unless it shall receive further assurances to its satisfaction by the
Banks of their indemnification obligations under SECTION 11.5 against
any and all liability and expense which may be incurred by it by
reason of taking or continuing to take any such action.

     11.8 RESIGNATION OR REMOVAL OF THE AGENT.  Subject to the
appointment and acceptance of a successor Agent as provided below, the
Agent may resign at any time by giving notice thereof to the Banks and
the Company, and the Agent may be removed at any time with or without
cause by the Required Banks.  Upon any such resignation or removal,
the Required Banks shall have the right to appoint a successor Agent. 
If no successor Agent shall have been so appointed by the Required
Banks and shall have accepted such appointment within 30 days after
the retiring Agent's giving of notice of resignation or the Required
Banks' removal of the retiring Agent, then the retiring Agent may, on
behalf of the Banks, appoint a successor Agent.  Any successor Agent
shall be a bank which has an office in the United States and a
combined capital and surplus of at least $250,000,000 and with its
deposits insured by the FDIC.  Upon the acceptance of any appointment
as the Agent hereunder by a successor Agent, such successor Agent
shall thereupon succeed to and become vested with all the rights,
powers, privileges and duties of the retiring Agent, and the retiring
Agent shall be discharged from its duties and obligations hereunder. 
Such successor Agent shall promptly specify its Principal Office
referred to in SECTIONS 3.1 and 5.1 by notice to the Company.  After
any retiring Agent's resignation or removal hereunder as the Agent,
the provisions of this SECTION 11 shall continue in effect for its
benefit in respect of any actions taken or omitted to be taken by it
while it was acting as the Agent.

     Section 12.  MISCELLANEOUS.

     12.1 WAIVER.  No waiver of any Default shall be a waiver of any
other Default.  No failure on the part of the Agent or any Bank to
exercise and no delay in exercising, and no course of dealing with
respect to, any right, power or privilege under any Credit Document
shall operate as a waiver thereof, nor shall any single or partial
exercise of any right, power or privilege thereunder preclude any
other or further exercise thereof or the exercise of any other right,
power or privilege.  The remedies provided in the 

                                 -75-


Credit Documents are cumulative and not exclusive of any remedies
provided by law or in equity.

    12.2  NOTICES.  All notices and other communications provided for
herein (including any modifications of, or waivers or consents under,
this Agreement) shall be given or made by telex, telegraph, telecopy
(confirmed by mail), cable or other writing and telexed, telecopied,
telegraphed, cabled, mailed or delivered to the intended recipient at
the "Address for Notices" specified below its name on the signature
pages hereof; or, as to any party, at such other address as shall be
designated by such party in a notice to the Company and the Agent
given in accordance with this Section.  Except as otherwise provided
in this Agreement, all such communications shall be deemed to have
been duly given when transmitted by telex or telecopier, delivered to
the telegraph or cable office or personally delivered or, in the case
of a mailed notice, upon receipt, in each case given or addressed as
aforesaid.

     12.3 EXPENSES, ETC.  Whether or not any Letter of Credit is ever
issued, the Company shall pay or reimburse on demand each of the
Banks, the Agent and the Co-Agents for paying:  (a) the reasonable
fees and expenses of Liddell, Sapp, Zivley, Hill & LaBoon, L.L.P.,
special counsel to the Agent, in connection with (1) the preparation,
execution and delivery of the Credit Documents (including the exhibits
and schedules hereto), the issuance of the Letters of Credit hereunder
and (2) any modification, supplement or waiver of any of the terms of
any Credit Document; (b) all reasonable out-of-pocket costs and expenses
of the Banks, the Agent and the Co-Agents (including costs of
preparing an Independent Engineering Report and reasonable counsels'
fees) in connection with any Event of Default under or the enforcement
of any Credit Document; (c) all transfer, stamp, documentary or other
similar taxes, assessments or charges levied by any governmental or
revenue authority in respect of any Credit Document or any other
document referred to therein; and (d) reasonable expenses of due
diligence and syndication, and mutually agreed advertising and
marketing costs.

     12.4 INDEMNIFICATION.  THE COMPANY SHALL INDEMNIFY THE AGENT
(INCLUDING THE AGENT WHEN ACTING AS ISSUER OF THE LETTERS OF CREDIT),
THE CO-AGENTS, THE BANKS, AND EACH AFFILIATE THEREOF AND THEIR
RESPECTIVE DIRECTORS, OFFICERS, EMPLOYEES, AGENTS AND COUNSEL FROM,
AND HOLD EACH OF THEM HARMLESS AGAINST, ANY AND ALL LOSSES,
LIABILITIES, COSTS, EXPENSES, CLAIMS OR DAMAGES TO WHICH ANY OF THEM
MAY BECOME SUBJECT, REGARDLESS OF AND INCLUDING LOSSES ARISING FROM
THE NEGLIGENCE OF THE AGENT OR THE CO-AGENTS OR THE BANKS OR ANY OTHER
INDEMNITEE, (A) IN CONNECTION WITH THE EXECUTION AND DELIVERY OR
TRANSFER OF OR PAYMENT OR FAILURE TO PAY UNDER ANY LETTER OF CREDIT,
INCLUDING, WITHOUT LIMITATION, ANY CLAIMS, DAMAGES, LOSSES,
LIABILITIES, COSTS OR EXPENSES WHICH THE AGENT, SUCH CO-AGENT OR SUCH
BANK, AS THE CASE MAY BE, MAY INCUR (WHETHER INCURRED AS A RESULT OF
ITS OWN NEGLIGENCE OR OTHERWISE) BY REASON 

                                 -76-


OF OR IN CONNECTION WITH THE FAILURE OF ANY OTHER BANK (WHETHER AS A
RESULT OF ITS OWN NEGLIGENCE OR OTHERWISE) TO FULFILL OR COMPLY WITH
ITS OBLIGATIONS TO THE AGENT OR SUCH BANK, AS THE CASE MAY BE,
HEREUNDER (BUT NOTHING HEREIN CONTAINED SHALL AFFECT THE RIGHTS THE
COMPANY MAY HAVE AGAINST SUCH DEFAULTING BANK); AND (B) INSOFAR AS
SUCH LOSSES, LIABILITIES, COSTS, EXPENSES, CLAIMS OR DAMAGES ARISE OUT
OF OR RESULT FROM ANY (A) ACTUAL OR PROPOSED USE BY THE COMPANY OF THE
PROCEEDS OF ANY EXTENSION OF CREDIT BY THE AGENT OR ANY BANK HEREUNDER;
(B) BREACH BY THE COMPANY OF ANY CREDIT DOCUMENT (AS DEFINED
HEREIN); (C) VIOLATION BY THE COMPANY OR ANY OF ITS SUBSIDIARIES OF
ANY LEGAL REQUIREMENT INCLUDING APPLICABLE ENVIRONMENTAL LAWS; (D) ANY
BANK'S OR THE AGENT'S OR ANY CO-AGENT'S BEING DEEMED AN OWNER OR
OPERATOR OF ANY ASSETS OF THE COMPANY OR ITS SUBSIDIARIES BY A COURT
OR OTHER REGULATORY OR ADMINISTRATIVE AGENCY OR TRIBUNAL IN CIRCUMSTANCES
IN WHICH NEITHER THE AGENT, EITHER CO-AGENT NOR ANY OF THE
BANKS IS GENERALLY OPERATING OR GENERALLY EXERCISING CONTROL OVER SUCH
ASSETS, TO THE EXTENT SUCH LOSSES, LIABILITIES, CLAIMS OR DAMAGES
ARISE OUT OF OR RESULT FROM ANY LEGAL REQUIREMENT INCLUDING APPLICABLE
ENVIRONMENTAL LAWS PERTAINING TO THE CONDITION OF SUCH ASSETS, (E)
ENVIRONMENTAL CLAIM OR (F) INVESTIGATION, LITIGATION OR OTHER PROCEEDING
(INCLUDING ANY THREATENED INVESTIGATION OR PROCEEDING) RELATING TO
ANY OF THE FOREGOING, and the Company shall reimburse the Agent,
Co-Agent, each Bank, and each Affiliate thereof and their respective
directors, officers, employees, agents and counsel, upon demand, for
any expenses (including legal fees) incurred in connection with any
such investigation or proceeding; but excluding any such losses,
liabilities, claims, damages, costs or expenses incurred by a Person
or any Affiliate thereof or their respective directors, officers,
employees, agents or counsel by reason of the gross negligence or
willful misconduct of such Person, Affiliate, director, officer,
employee, agent or counsel.  The obligation of the Company to provide
indemnification under this SECTION 12.4 for fees and expenses of
counsel shall be limited to the fees and expenses of one counsel in
each jurisdiction representing all of the Persons entitled to such
indemnification, except to the extent that, in the reasonable judgment
of any such indemnified Person, the existence of actual or potential
conflicts of interest make representation of all of such indemnified
Persons by the same counsel inappropriate; in such a case, the Person
exercising such judgment shall be indemnified for the reasonable fees
and expenses of its separate counsel to the extent provided in this
SECTION 12.4 without giving effect to the first clause of this
sentence.  Nothing in this SECTION 12.4 is intended to limit the
obligations of the Company under any other provision of this
Agreement.

     12.5 AMENDMENTS, ETC.  No amendment or waiver of any provision of
any Credit Document, nor any consent to any departure by the Company
therefrom, shall in any event be effective unless the same shall be
agreed or consented to by the Required Banks and the Company, and each
such waiver or consent shall be effective only in the specific
instance and for the specific purpose for which given; 

                                 -77-



PROVIDED that no amendment, waiver or consent shall, unless in writing
and signed by each Bank affected thereby, (a) increase the Commitment
of any of the Banks or subject the Banks to any additional obligations;
(b) reduce the principal of, or interest on, any Reimbursement
Obligation, fee or other sum to be paid under any Credit Document; (c)
postpone any scheduled date fixed for any payment of principal of, or
interest on, any Reimbursement Obligation, fee or other sum to be paid
under any Credit Document; (d) change the percentage of any of the
Commitments, or of the aggregate unpaid principal amount of the
Reimbursement Obligations, or the number of Banks which shall be
required for the Banks or any of them to take any action under this
Agreement; (e) change any provision contained in SECTIONS 2.3, 5.2,
5.7, 6, 12.3 or 12.4 or this SECTION 12.5, or in the definition of
"Required Ratios".  Anything in this SECTION 12.5 to the contrary, no
amendment, waiver or consent shall be made with respect to SECTION 11
without the consent of the Agent and the Co-Agents.

     12.6 SUCCESSORS AND ASSIGNS.  (a)  This Agreement shall be
binding upon and inure to the benefit of the Company, the Agent, the
Co-Agents and the Banks and their respective successors and assigns. 
The Company may not assign or transfer any of its rights or
obligations hereunder without the prior written consent of all of the
Banks.

     (b)  Each Bank may sell participations to any Person in all or
part of its Reimbursement Obligation, or all or part of its
Commitment, in which event, without limiting the foregoing, the
provisions of SECTION 6 shall inure to the benefit of each purchaser
of a participation and the PRO RATA treatment of payments, as
described in SECTION 5.2, shall be determined as if such Bank had not
sold such participation.  In the event any Bank shall sell any
participation, (1) the Company, the Agent, the Co-Agent and the other
Banks shall continue to deal solely and directly with such selling
Bank in connection with such selling Bank's rights and obligations
under the Credit Documents (including the Applications held by such
selling Bank); (2) such Bank shall retain the sole right and
responsibility to enforce the Reimbursement Obligations, including the
right to approve any amendment, modification or waiver of any
provision of this Agreement other than amendments, modifications or
waivers with respect to (A) any fees payable hereunder to the Banks,
and (B) the amount of principal or the rate of interest payable on, or
the dates fixed for the scheduled repayment of principal of, the
Reimbursement Obligations and other sums to be paid to the Banks
hereunder, and (3) the Company agrees, to the fullest extent it may
effectively do so under applicable law, that any participant of a Bank
may exercise all rights of set-off, bankers' lien, counterclaim or
similar rights with respect to such participation as fully as if such
participant were a direct holder of Reimbursement Obligations if such
Bank has previously given notice of such participation to the Company.


                                 -78-


     (c)  Each Bank may assign to one or more Banks or Eligible
Assignees all or a portion of its interests, rights and obligations
under this Agreement (including all or a portion of its Commitment and
the same portion of the related Reimbursement Obligations at the time
owing to it); PROVIDED (1) other than in the case of an assignment to
a Person at least 50% owned by the assignor Bank, or by a common
parent of both, or to another Bank, the Agent and the Company must
give their respective prior written consent, which consent will not be
unreasonably withheld; (2) the aggregate amount of the Commitment
and/or Reimbursement Obligations of the assigning Bank subject to each
such assignment (determined as of the date the Assignment Agreement
with respect to such assignment is delivered to the Agent) shall in no
event be less than $750,000 (or $75,000 in the case of an assignment
between Banks) (except for certain exceptions approved by the Company
and the Agent) and shall be in an amount that is an integral multiple
of $75,000; (3) the assigning Bank shall contemporaneously assign to
such assignee Bank or Eligible Assignee an equal percentage of the
assigning Bank's Facility B Commitment and Facility A Commitment (as
that term is defined in the Amended and Restated Revolving Credit
Agreement) and all of the assigning Bank's other rights and
obligations under the Amended and Restated Revolving Credit Agreement;
and (4) the parties to each such assignment shall execute and deliver
to the Agent, for its acceptance and recording in its records, an
Assignment Agreement with blanks appropriately completed, together
with the Applications subject to such assignment and a processing and
recordation fee of $2,000 (for which the Company shall have no liability
except in the case of assignments required by the Company pursuant
to SECTION 6.1 or 6.2, in which case such fee shall be paid by the
Company).  Upon such execution, delivery, acceptance and recording,
from and after the effective date specified in each Assignment
Agreement, (A) the assignee thereunder shall be a party hereto and, to
the extent provided in such Assignment Agreement, have the rights and
obligations of a Bank hereunder, and (B) the Bank making such
assignment shall, to the extent provided in such assignment, be
released from its obligations under this Agreement (and, in the case
of an Assignment Agreement covering all or the remaining portion of an
assigning Bank's rights and obligations under this Agreement, such
Bank shall cease to be a party hereto).

     (d)  By executing and delivering an Assignment Agreement, the
Bank assignor thereunder and the assignee thereunder confirm to and
agree with each other and the other parties hereto as follows:  (1)
other than the representation and warranty that it is the legal and
beneficial owner of the interest being assigned thereby, such assignor
Bank makes no representation or warranty and assumes no responsibility
with respect to any statements, warranties or representations made in
or in connection with any Credit Document or the execution, legality,
validity, enforceability, genuineness, sufficiency or value of any
Credit Document; (2) such assignor Bank makes no representation or
warranty and assumes no responsibility with respect to the financial
condition of the Company or the 
                                 -79-


performance or observance by the Company of any of its obligations
under any Credit Document; (3) such assignee confirms that it has
received a copy of this Agreement, together with copies of the
financial statements of the Company previously delivered in accordance
herewith and such other documents and information as it has deemed
appropriate to make its own credit analysis and decision to enter into
such Assignment Agreement; (4) such assignee will, independently and
without reliance upon the Agent, such assignor Bank or any other Bank
and based on such documents and information as it shall deem appropriate
at the time, continue to make its own credit decisions in taking
or not taking action under the Credit Documents; (5) such assignee
appoints and authorizes the Agent to take such action as agent on its
behalf and to exercise such powers under the Credit Documents as are
delegated to the Agent by the terms hereof, together with such powers
as are reasonably incidental thereto, and (6) such assignee agrees
that it will perform in accordance with their terms all obligations
that by the terms of the Credit Documents are required to be performed
by it as a Bank.

     (e)  The Agent shall maintain at its office a copy of each
Assignment Agreement delivered to it and a record of the names and
addresses of the Banks and the Commitment of, and principal amount of
the Reimbursement Obligations owing to, each Bank from time to time. 
The entries in such record shall be conclusive, in the absence of
manifest error, and the Company, the Agent and the Banks may treat
each Person the name of which is recorded therein as a Bank hereunder
for all purposes of the Credit Documents.  Such records shall be
available for inspection by the Company or any Bank at any reasonable
time and from time to time upon reasonable prior notice.

     (f)  Upon its receipt of an Assignment Agreement executed by an
assigning Bank and the assignee thereunder together with the
Application subject to such assignment, the written consent to such
assignment and the fee payable in respect thereto, the Agent shall, if
such Assignment Agreement has been completed with blanks appropriately
filled, (1) accept such Assignment Agreement; (2) record the
information contained therein in its records, and (3) give prompt
notice thereof to the Company.  

     (g)  Any Bank may, in connection with any assignment or
participation or proposed assignment or participation pursuant to this
Section, disclose to the assignee or participant or proposed assignee
or participant, any information relating to the Company furnished to
such Bank by or on behalf of the Company.

     (h)  Any assignment by a Bank pursuant to this SECTION 12.6 shall
not result in any single Bank holding in excess of 25% of the
Aggregate Commitment at any one time.

                                 -80-


     (i)  Notwithstanding any other provision of this SECTION 12.6,
TCB and its Affiliates may not assign their rights hereunder unless,
after giving effect to such assignment, TCB and its Affiliates would
have an aggregate Commitment Percentage of at least 10%.

     (j)  Notwithstanding anything herein to the contrary, each Bank
may pledge and assign all or any portion of its rights and interests
under the Credit Documents to any Federal Reserve Bank.

     12.7 SURVIVAL; TERM; REINSTATEMENT.  In addition to the other
provisions of this Agreement expressly stated to survive the
termination of this Agreement, the obligations of the Company under
SECTIONS 6, 12.3 and 12.4 and the last sentence of this SECTION 12.7
and the obligations of the Banks under SECTION 12.8 shall survive the
termination of this Agreement.  The term of this Agreement shall be
until (a) the full and final payment of all Reimbursement Obligations,
(b) the expiry of all Letters of Credit, (c) the termination of all
Commitments and (d) the payment of all amounts due under the Credit
Documents.  The Company agrees that if at any time all or any part of
any payment previously applied by any Bank to any Reimbursement
Obligation or other sum hereunder is or must be returned by or
recovered from such Bank for any reason (including the order of any
bankruptcy court), the Credit Documents shall automatically be
reinstated to the same effect as if the prior application had not been
made, and the Company hereby agrees to indemnify such Bank against,
and to save and hold such Bank harmless from, any required return by
or recovery from such Bank of any such payment because of its being
deemed preferential under applicable Legal Requirements, or for any
other reason.  

     12.8 LIMITATION OF INTEREST.  The parties to this Agreement
intend to strictly comply with all applicable laws, including
applicable usury laws.  Accordingly, the provisions of this Section
shall govern and control over every other provision of any Credit
Document which conflicts or is inconsistent with this Section, even if
such provision declares that it controls.  As used in this SECTION
12.8, the term "interest" includes the aggregate of all charges, fees,
benefits or other compensation which constitute interest under
applicable law; PROVIDED that, to the maximum extent permitted by
applicable law, (a) any non-principal payment shall be characterized
as an expense or as compensation for something other than the use,
forbearance or detention of money, and not as interest and (b) all
interest at any time contracted for, taken, reserved, retained,
charged or received shall be amortized, prorated, allocated and
spread, in equal parts during the full term of this Agreement and the
Commitments.  In no event shall the Company or any other Person be
obligated to pay, or the Agent or any Bank have any right or privilege
to reserve, receive or retain, (x) any interest in excess of the
maximum amount of nonusurious interest permitted under the laws of the
State of Texas or the applicable laws (if any) of the United States or
of any other state 

                                 -81-


or (y) total interest in excess of the amount which the Agent or such
Bank could lawfully have contracted for, taken, reserved, received,
retained or charged had the interest been calculated for the full term
of this Agreement at the Highest Lawful Rate.  On each day, if any,
that the interest rate (the "STATED RATE") called for under any Credit
Document exceeds the Highest Lawful Rate, the rate at which interest
shall accrue shall automatically be fixed by operation of this
sentence at the Highest Lawful Rate for that day, and shall remain
fixed at the Highest Lawful Rate for each day thereafter until the
total amount of interest accrued equals the total amount of interest
which would have accrued if there were no such ceiling rate as is
imposed by this sentence.  Thereafter, interest shall accrue at the
Stated Rate unless and until the Stated Rate again exceeds the Highest
Lawful Rate when the provisions of the immediately preceding sentence
shall again automatically operate to limit the interest accrual rate. 
The daily interest rates to be used in calculating interest at the
Highest Lawful Rate shall be determined by dividing the applicable
Highest Lawful Rate per annum by the number of days in the calendar
year for which such calculation is being made.  None of the terms and
provisions contained in any Credit Document which directly or
indirectly relate to interest shall ever be construed without
reference to this Section, or be construed to create a contract to pay
for the use, forbearance or detention of money at an interest rate in
excess of the Highest Lawful Rate.  If the term of this Agreement is
shortened by reason of acceleration of maturity as a result of any
Default or by any other cause, or by reason of any required or
permitted prepayment, and if for that (or any other) reason the Agent
or any Bank at any time, including the stated maturity, is owed or
receives (and/or has received) interest in excess of interest
calculated at the Highest Lawful Rate, then and in any such event all
of any such excess interest shall be canceled automatically as of the
date of such acceleration, prepayment or other event which produces
the excess, and, if such excess interest has been paid to the Agent or
such Bank, it shall be credited PRO TANTO against the then-outstanding
principal balance of the Company's obligations to the Agent or such
Bank, effective as of the date or dates when the event occurs which
causes it to be excess interest, until such excess is exhausted or all
of such principal has been fully paid and satisfied, whichever occurs
first, and any remaining balance of such excess shall be promptly
refunded to its payor.

     12.9 CAPTIONS.  Captions and section headings appearing herein
are included solely for convenience of reference and are not intended
to affect the interpretation of any provision of this Agreement.

     12.10     COUNTERPARTS.  Each Credit Document may be executed in
any number of counterparts, all of which taken together shall constitute
one and the same agreement and any of the parties hereto may
execute such Credit Document by signing any such counterpart.

                                 -82-


     12.11     GOVERNING LAW.  EXCEPT TO THE EXTENT OTHERWISE
SPECIFIED THEREIN, EACH CREDIT DOCUMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE OF TEXAS AND THE
UNITED STATES OF AMERICA.  THE COMPANY HEREBY SUBMITS TO THE
NONEXCLUSIVE JURISDICTION OF THE UNITED STATES DISTRICT COURT FOR THE
SOUTHERN DISTRICT OF TEXAS AND OF ANY TEXAS STATE COURT SITTING IN
HARRIS COUNTY, TEXAS FOR PURPOSES OF ALL LEGAL PROCEEDINGS ARISING OUT
OF OR RELATING TO THE CREDIT DOCUMENTS OR THE TRANSACTIONS
CONTEMPLATED THEREBY.  THE COMPANY IRREVOCABLY WAIVES, TO THE FULLEST
EXTENT PERMITTED BY LAW, ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER
HAVE TO THE LAYING OF THE VENUE OF ANY SUCH PROCEEDING BROUGHT IN SUCH
A COURT AND ANY CLAIM THAT ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT
HAS BEEN BROUGHT IN AN INCONVENIENT FORUM.

     12.12     SEVERABILITY.  Whenever possible, each provision of the
Credit Documents shall be interpreted in such manner as to be
effective and valid under applicable law.  If any provision of any
Credit Document shall be invalid, illegal or unenforceable in any
respect under any applicable law, the validity, legality and
enforceability of the remaining provisions of such Credit Document
shall not be affected or impaired thereby.

     12.13     CHAPTER 15 NOT APPLICABLE.  Chapter 15 of the Texas
Credit Code shall not apply to any Credit Document or to any
Commitment or Letter of Credit or Application or Reimbursement
Obligation, nor shall any Credit Document be governed by or be subject
to the provisions of such Chapter 15 in any manner whatsoever.

                                      -83-


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

                                      SANTA FE ENERGY RESOURCES, INC.,
                                           a Delaware corporation

                                            By:M. J. ROSINSKI
                                               M. J. Rosinski,
                                               Vice President and
                                               Chief Financial Officer

                                      Address for Notices:

                                      Santa Fe Energy Resources, Inc.
                                          1616 South Voss, Suite 1000
                                          Houston, Texas  77057
                                          Telecopy:  (713) 268-5341 
                                          Attention:  Vice President-Finance
                                          Telex: 794-567
                                          (Answerback: SFEPROD HOU)

                                          TEXAS COMMERCE BANK NATIONAL
                                            ASSOCIATION, individually, 
                                            as Administrative Agent
                                            and as Co-Agent

                                            By:JAMES R. MCBRIDE
                                               James R. McBride
                                               Senior Vice President
                                          
                                          Address for Notices:

                                          Texas Commerce Bank National
Lending Offices:                            Association
                                          712 Main Street
Texas Commerce Bank National              Houston, Texas  77002
  Association                             Attention:  Manager, Energy Group
ABA #113000609                            Telecopy:  (713) 236-4117
For Credit To: Acct. #10967               Telex: 166-053
(Answerback:TCB HOU)
Attention:  Investment
  Operations/Norma Benzon                 with copies to:
Reference:  Santa Fe Energy
  Resources, Inc.                         Texas Commerce Bank National
                                            Association
                                          P. O. Box 2558
Commitment:  $1,971,428.59      Houston, Texas   77252
                                          Attention:  Manager, Capital
                                            Markets Division

                                          and

                                          Texas Commerce Bank National
                                            Association
                                          P. O. Box 2558
                                          Houston, Texas   77252
                                          Attention:  Manager, Loan
                                            Agreements Division

                                          NATIONSBANK OF TEXAS, N.A.,
                                            individually and as Co-Agent

                                          By:H. GENE SHIELS
                                          Name:H. Gene Shiels
                                          Title:Vice President
  

                                          Address for Notices:
Lending Offices:
NationsBank of Texas, N.A.                NationsBank of Texas, N.A.
ABA #111000025                            700 Louisiana
For Credit to:  Acct. #                   P.O. Box 2518
 0180019828                               Houston, Texas 77252-2518
Attention:  Loan Funds                    Attention:  H. Gene Shiels
 Transfer                                 Telecopy:  (713) 247-6432
Reference:  Santa Fe Energy
 Resources, Inc.



Commitment:  $1,885,714.29


                                          THE BANK OF NEW YORK
                                          
                                          By:DANIEL T. GATES
                                          Name:Daniel T. Gates
                                          Title:Vice President
  
Lending Office:                           Address for Notices:
The Bank of New York
ABA #021000018                            The Bank of New York 
For Credit To:  Special                   One Wall Street, 19th Floor
  Financial Products Dept.                New York, New York  10286
  Account No. 803-329-7689                Attention: Daniel T. Gates
Reference:  Santa Fe Energy               Telecopy:  (212) 635-7923
  Resources, Inc.                         Telex: 420-268 (Answerback:BONY UR)
Specify fees, period.
                                          With a copy to:
Commitment:  $1,542,857.14
                                          The Bank of New York
                                          One Wall Street, 19th Floor
                                          New York, N.Y. 10286
                                          Attention: Ann Marie Schron
                                          Telecopy: (212) 635-7923
                                          Telex: 232 060 (Answerback: BONY UR)

                                          THE BANK OF NOVA SCOTIA

                                          By:A. S. NORSWORTHY
                                          Name:A. S. Norsworthy
                                          Title:Assistant Agent
  
                                          Address for Notices:
Lending Office:
Bank of Nova Scotia, New                  The Bank of Nova Scotia
  York Agency                             600 Peachtree Street, Suite 2700
ABA #026002532                            Atlanta, Georgia  30308
For Credit To:  Atlanta Agency            Attention:  Claude Ashby
Account #0606634                          Telecopy:  (404) 888-8998 
Reference:  Santa Fe Energy               Telex:  00542319
  Resources, Inc.                         (Answerback:  SCOTIABANK ATL)



Commitment:  $1,542,857.14

                                          with a copy to:

                                          The Bank of Nova Scotia
                                          1100 Louisiana, Suite 3000
                                          Houston, Texas  77002
                                          Attention:  Mark Ammerman
                                          Telecopy:  (713) 752-2425

                                          BANK OF MONTREAL

                                          By:MARK M. GREEN
                                          Name:Mark M. Green
                                          Title:Director
  

                                          Address for Notices:
Lending Offices:
Harris Bank                               Bank of Montreal
ABA #071000288                            700 Louisiana, Suite 4400
For Credit To:  Bank of                   Houston, Texas  77002
  Montreal, Chicago Branch                Attention:  Dennis Spencer
Attention:  E. Rios                       Telecopy:  (713) 223-4007 
Reference:  Santa Fe Energy               Telex:  77-5640 
  Resources, Inc.                         (Answerback:  BKMONTREAL HOU)



Commitment:  $1,714,285.71


                                          CIBC, INC. 

                                          By:J. D. WESTLAND
                                          Name:J. D. Westland
                                          Title:Vice President
  
                                          Address for Notices:
Lending Offices:
Morgan Guaranty Trust                     CIBC, Inc.
  Company of New York                     Two Paces West, 2727 Paces Ferry Road
ABA #021-000-238                          Suite 1200
For Credit To:  CIBC,                     Atlanta, Georgia  30339
  Atlanta Acct.  #630-00-480              Attention: Vice President
  For Further Credit To:                  Telephone: (404) 319-4999
  Acct. #0701610                          Telecopier No.: (404) 319-4950
Attention:  Loan Operations               Telex: 54-2413
Reference:  Santa Fe Energy                 answer back: CANBANK ATL
  Resources, Inc.



Commitment:  $1,542,857.14
                                          with a copy to:

                                          Canadian Imperial Bank of
                                            Commerce
                                          2 Houston Center, Suite 1200
                                          Houston, Texas  77010
                                          Attention:  Brian R. Swinford
                                          Telecopy: (713) 658-9922


                                          BANQUE PARIBAS HOUSTON AGENCY

                                          By:BRIAN MALONE
                                          Name:Brian Malone
                                          Title:Vice President
  
                                          By:PATRICK J. MILOR 
                                          Name:Patrick J. Milor
                                          Title:SVP-Deputy General Manager
  
                                          Address for Notices:
Lending Offices:
Bankers Trust Co.                         Banque Paribas Houston Agency
ABA #02-100-1033                          1200 Smith Street, Suite 3100
                                          Houston, Texas 77002
For Credit To:  Banque                    Attention:  Brian Malone
  Paribas New York                        Telecopy:  (713) 659-3832
  #04202195
  Final Credit 2144-001545
  Banque Paribas Houston Agency
  Reference:  Santa Fe Energy
  Resources, Inc.

Commitment:  $1,542,857.14


                                          THE FIRST NATIONAL BANK OF BOSTON
                                          
                                          By:FRANK T. SMITH
                                          Name:Frank T. Smith
                                          Title:Director
  
                                          Address for Notices:
Lending Offices:
Bank of Boston                            The First National Bank of Boston
ABA #011000390                            100 Federal Street
                                          Boston, Massachusetts 02110
For Credit To:                            Attention:  George W. Passela
  not applicable                          Telecopy:  (617) 434-3652
  
  Reference:  Santa Fe Energy
  Resources, Inc.

Commitment:  $1,542,857.14


                                          ABN AMRO Bank N.V., HOUSTON AGENCY

                                          By:W. BRYAN CHAPMAN
                                          Name:W. Bryan Chapman
                                          Title:Vice President
                                          
                                          By:CHARLES W. RANDALL
                                          Name:Charles W. Randall
                                          Title:Group Vice President
  
                                          Address for Notices:
Lending Offices:
ABN AMRO New York                         ABN AMRO Bank N.V., Houston Agency
ABA #026009580                            Three Riverway, Suite 1600
                                          Houston, Texas 77056
For Credit To:  ABN AMRO                  Attention:  Mr. Bryan Chapman
  Houston Agency                          Telecopy:  (713) 629-7533
  Acct. #651001071541
  Reference:  Santa Fe Energy
  Resources, Inc.

Commitment:  $1,714,285.71



EXHIBITS:
A - Form of Application
B - Assignment Agreement
C - Preliminary Available Amount

SCHEDULES:
I              - Restricted and Unrestricted Subsidiaries
II             - Liens and Funded Debt
III            - Initial Approved Assumptions and Price Protection
                  Agreements
IV             - Coverage Report
V              - Subordination Provisions
VI             - Opinion of Andrews & Kurth, L.L.P.
VII            - Opinion of David L. Hicks
VIII           - Existing Letters of Credit
IX             - Jurisdictions for Which Certificates Are to Be Provided
X              - Designated Debt