SANTA FE ENERGY RESOURCES INC
10-Q, 1995-05-09
CRUDE PETROLEUM & NATURAL GAS
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                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                              -----------------

                                  FORM 10-Q

(MARK ONE)

   [X]        QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D)
                    OF THE SECURITIES EXCHANGE ACT OF 1934

                     FOR THE QUARTER ENDED MARCH 31, 1995

                                      OR

   [ ]       TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D)
                    OF THE SECURITIES EXCHANGE ACT OF 1934

                        COMMISSION FILE NUMBER 1-7667

                             -------------------

                       SANTA FE ENERGY RESOURCES, INC.
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

             DELAWARE                                   36-2722169
    (STATE OF INCORPORATION)              (I.R.S. EMPLOYER IDENTIFICATION NO.)

                         1616 SOUTH VOSS, SUITE 1000
                             HOUSTON, TEXAS 77057
         (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES, INCLUDING ZIP CODE)

     REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE:  (713) 507-5000

                             -------------------

    Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.   Yes [X]   No [ ]

      Shares of Common Stock outstanding at April 17, 1995 -- 90,243,765
===============================================================================
<PAGE>
                        PART I -- FINANCIAL STATEMENTS
                                                                       PAGE
                                                                       ----
Consolidated Statement of Operations
  Three Months Ended March 31, 1995 and 1994.......................      2

Consolidated Balance Sheet
  March 31, 1995 and December 31, 1994.............................      3

Consolidated Statement of Cash Flows
  Three Months Ended March 31, 1995 and 1994.......................      4

Consolidated Statement of Shareholders' Equity
  Three Months Ended March 31, 1995 and 1994.......................      5

Notes to Consolidated Financial Statements.........................      6

Management's Discussion and Analysis of Financial Condition
  and Results of Operations........................................      9

                                      1
<PAGE>
                       SANTA FE ENERGY RESOURCES, INC.
               CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED)
               (IN MILLIONS OF DOLLARS, EXCEPT PER SHARE DATA)

                                        THREE MONTHS ENDED
                                            MARCH 31,
                                       --------------------
                                         1995       1994
                                       ---------  ---------
Revenues
    Crude oil and liquids............  $    79.0  $    58.6
    Natural gas......................       15.0       28.1
    Crude oil marketing and
      trading........................        2.9        2.7
    Other............................        1.7        0.9
                                       ---------  ---------
                                            98.6       90.3
                                       ---------  ---------
Costs and Expenses
    Production and operating.........       38.6       40.6
    Exploration, including dry hole
      costs..........................        6.0        5.0
    Depletion, depreciation and
      amortization...................       31.3       32.1
    General and administrative.......        5.9        7.6
    Taxes (other than income)........        4.3        7.4
    Restructuring charges............     --            7.0
    Loss (gain) on disposition of
      oil and gas properties.........     --           (9.4)
                                       ---------  ---------
                                            86.1       90.3
                                       ---------  ---------
Income (Loss) from Operations........       12.5     --
    Interest income..................        0.8        0.2
    Interest expense.................      (10.1)     (10.3)
    Interest capitalized.............        0.9        0.9
    Other income (expense)...........        2.2        0.9
                                       ---------  ---------
Income (Loss) Before Income Taxes....        6.3       (8.3)
    Income tax benefit (expense).....       (2.7)       5.8
                                       ---------  ---------
Net Income (Loss)....................        3.6       (2.5)
    Preferred dividend requirement...       (3.7)      (1.8)
                                       ---------  ---------
Earnings (Loss) Attributable to
  Common Shares......................       (0.1) $    (4.3)
                                       =========  =========
Earnings (Loss) Attributable to
  Common Shares Per Share............  $  --      $   (0.05)
                                       =========  =========
Weighted Average Number of Shares
  Outstanding (in millions)..........       90.1       89.9
                                       =========  =========

  The accompanying notes are an integral part of these financial statements.

                                      2
<PAGE>
                       SANTA FE ENERGY RESOURCES, INC.
                          CONSOLIDATED BALANCE SHEET
                           (IN MILLIONS OF DOLLARS)

                                        MARCH 31,     DECEMBER 31,
                                           1995           1994
                                        ----------    ------------
                                        (UNAUDITED)
               ASSETS
Current Assets
    Cash and cash equivalents........   $     18.5     $     53.7
    Accounts receivable..............         69.2           76.2
    Inventories......................         10.1            9.2
    Other current assets.............         15.9           18.1
                                        ----------    ------------
                                             113.7          157.2
                                        ----------    ------------
Investment in Hadson Corporation.....         57.0           57.0
                                        ----------    ------------
Properties and Equipment, at cost
    Oil and gas (on the basis of
      successful efforts
      accounting)....................      2,181.1        2,145.9
    Other............................         31.0           32.7
                                        ----------    ------------
                                           2,212.1        2,178.6
    Accumulated depletion,
      depreciation, amortization
      and impairment.................     (1,362.1)      (1,335.6)
                                        ----------    ------------
                                             850.0          843.0
                                        ----------    ------------
Other Assets
    Receivable under gas balancing
      arrangements...................          4.6            4.6
    Other............................          7.9            9.6
                                        ----------    ------------
                                              12.5           14.2
                                        ----------    ------------
                                        $  1,033.2     $  1,071.4
                                        ==========    ============
LIABILITIES AND SHAREHOLDERS' EQUITY
Current Liabilities
    Accounts payable.................   $     64.6     $     84.1
    Interest payable.................          4.3            8.5
    Current portion of long-term
      debt...........................       --                3.9
    Other current liabilities........         27.1           29.5
                                        ----------    ------------
                                              96.0          126.0
                                        ----------    ------------
Long-Term Debt.......................        344.3          350.4
                                        ----------    ------------
Deferred Revenues....................          5.5            7.4
                                        ----------    ------------
Other Long-Term Obligations..........         24.2           28.0
                                        ----------    ------------
Deferred Income Taxes................         58.1           56.3
                                        ----------    ------------
Commitments and Contingencies
  (Note 4)...........................       --            --
                                        ----------    ------------
Convertible Preferred Stock..........         80.0           80.0
                                        ----------    ------------
Shareholders' Equity
    Preferred stock..................       --            --
    $.732 Series A preferred stock...         91.4           91.4
    Common stock.....................          0.9            0.9
    Paid-in capital..................        500.7          498.9
    Accumulated deficit..............       (167.6)        (167.5)
    Foreign currency translation
      adjustment.....................         (0.3)          (0.4)
                                        ----------    ------------
                                             425.1          423.3
                                        ----------    ------------
                                        $  1,033.2     $  1,071.4
                                        ==========    ============

  The accompanying notes are an integral part of these financial statements.

                                      3
<PAGE>
                       SANTA FE ENERGY RESOURCES, INC.
               CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED)
                           (IN MILLIONS OF DOLLARS)

                                         THREE MONTHS ENDED
                                             MARCH 31,
                                       ----------------------
                                          1995        1994
                                       ----------  ----------
Operating Activities:
    Net income (loss)................  $      3.6  $     (2.5)
    Adjustments to reconcile net
      income (loss) to net cash
      provided by operating
      activities:
        Depletion, depreciation and
          amortization...............        31.3        32.1
        Restructuring charges........      --             1.0
        Deferred income taxes........         1.8        (3.4)
        Net loss (gain) on
          disposition of
          properties.................      --            (9.4)
        Exploratory dry hole costs...         2.8         0.6
        Other........................        (1.5)       (0.1)
    Changes in operating assets and
      liabilities:
        Decrease (increase) in
          accounts receivable........         7.0         9.0
        Decrease (increase) in
          inventories................        (0.9)       (1.0)
        Increase (decrease) in
          accounts payable...........       (14.3)        2.8
        Increase (decrease) in
          interest payable...........        (4.2)       (9.4)
        Increase (decrease) in
          income taxes payable.......         0.2        (0.1)
        Net change in other assets
          and liabilities............        (5.6)       (5.3)
                                       ----------  ----------
Net Cash Provided by Operating
  Activities.........................        20.2        14.3
                                       ----------  ----------
Investing Activities:
    Capital expenditures, including
      exploratory dry hole costs.....       (45.6)      (30.5)
    Acquisitions of producing
      properties.....................        (0.2)       (0.6)
    Net proceeds from sales of
      properties.....................         4.1        20.3
                                       ----------  ----------
Net Cash Used in Investing
  Activities.........................       (41.7)      (10.8)
                                       ----------  ----------
Financing Activities:
    Principal payments on long-term
      borrowings.....................       (10.0)      (32.3)
    Net change in revolving credit
      agreement......................      --            29.0
    Cash dividends paid..............        (3.7)       (1.8)
                                       ----------  ----------
Net Cash Used in Financing
  Activities.........................       (13.7)       (5.1)
                                       ----------  ----------
Net Decrease in Cash and Cash
  Equivalents........................       (35.2)       (1.6)
Cash and Cash Equivalents at
  Beginning of Period................        53.7         4.8
                                       ----------  ----------
Cash and Cash Equivalents at
  End of Period......................  $     18.5  $      3.2
                                       ==========  ==========

  The accompanying notes are an integral part of these financial statements.

                                      4
<PAGE>
                       SANTA FE ENERGY RESOURCES, INC.
          CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (UNAUDITED)
                       (SHARES AND DOLLARS IN MILLIONS)
<TABLE>
<CAPTION>
                                           $.732
                                         SERIES A                                                                FOREIGN
                                        CONVERTIBLE                                 UNAMORTIZED                  CURRENCY
                                      PREFERRED STOCK    COMMON STOCK               RESTRICTED                   TRANSLA-
                                      ---------------   ---------------   PAID-IN      STOCK      ACCUMULATED      TION
                                      SHARES   AMOUNT   SHARES   AMOUNT   CAPITAL     AWARDS        DEFICIT     ADJUSTMENT
                                      ------   ------   ------   ------   -------   -----------   -----------   ----------
<S>                                    <C>     <C>       <C>      <C>     <C>         <C>          <C>            <C>
Balance at December 31, 1993..         --      $--       89.8     $0.9    $ 496.9     $  (0.1)     $  (173.8)     $ (0.3)
  Issuance of common stock..           --       --        0.1     --          1.4       --            --           --
  Net loss...........................  --       --       --       --        --          --              (2.5)      --
  Dividends declared.................  --       --       --       --        --          --              (1.8)      --
                                      ------   ------   ------   ------   -------   -----------   -----------   ----------
  Balance at March 31, 1994..........  --       --       89.9     $0.9    $ 498.3     $  (0.1)     $  (178.1)     $ (0.3)
                                      ======   ======   ======   ======   =======   ===========   ===========   ==========
Balance at December 31, 1994..         10.7    $91.4     90.0     $0.9    $ 498.9     $ --         $  (167.5)     $ (0.4)
  Issuance of common stock...........  --       --        0.1     --          1.8       --            --           --
  Foreign currency translation
   adjustment........................  --       --       --       --        --          --            --             0.1
  Net income.........................  --       --       --       --        --          --               3.6       --
  Dividends declared.................  --       --       --       --        --          --              (3.7)      --
                                      ------   ------   ------   ------   -------   -----------   -----------   ----------
Balance March 31, 1995...............  10.7    $91.4     90.1     $0.9    $ 500.7     $ --         $  (167.6)     $ (0.3)
                                      ======   ======   ======   ======   =======   ===========   ===========   ==========
</TABLE>
                                           TOTAL
                                       SHAREHOLDERS'
                                          EQUITY
                                       -------------
Balance at December 31, 1993..            $ 323.6
  Issuance of common stock..                  1.4
  Net loss...........................        (2.5)
  Dividends declared.................        (1.8)
                                       -------------
  Balance at March 31, 1994..........     $ 320.7
                                       =============

Balance at December 31, 1994..            $ 423.3
  Issuance of common stock...........         1.8
  Foreign currency translation
   adjustment........................         0.1
  Net income.........................         3.6
  Dividends declared.................        (3.7)
                                       -------------
Balance March 31, 1995...............     $ 425.1
                                       =============

  The accompanying notes are an integral part of these financial statements.

                                      5
<PAGE>
                       SANTA FE ENERGY RESOURCES, INC.
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 (UNAUDITED)

(1)  ACCOUNTING POLICIES

    The unaudited consolidated financial statements of Santa Fe Energy
Resources, Inc. ("Santa Fe" or the "Company") reflect, in the opinion of
management, all adjustments, consisting only of normal and recurring
adjustments, necessary to present fairly the Company's financial position at
March 31, 1995 and the Company's results of operations and cash flows for the
three-month periods ended March 31, 1995 and 1994. Interim period results are
not necessarily indicative of results of operations or cash flows for a
full-year period.

    These financial statements and the notes thereto should be read in
conjunction with the Company's annual report on Form 10-K for the year ended
December 31, 1994.

(2)  STATEMENT OF CASH FLOWS

    The Company made interest and income tax payments as follows during the
three months ended March 31, 1995 and 1994 (in millions of dollars):

                                         1995       1994
                                       ---------  ---------
    Interest payments................       13.7       21.2
    Income tax payments..............        0.5        0.8

In addition, during the three months ended March 31, 1995 the Company received
a $1.0 million income tax refund.

(3)  INVESTMENT IN HADSON CORPORATION

    In February 1995 the Company entered into a Securities Purchase Agreement
under the terms of which the Company agreed to sell its holdings in Hadson
Corporation ("Hadson") for $55.3 million. In addition, the Company agreed to
negotiate with the purchaser certain amendments to its existing gas sales
contract with Hadson which if consummated will result in additional
consideration to the Company. The Company's total investment in Hadson at
March 31, 1995 of $57.0 million represents management's best estimate of the
realizable value of the investment at that date. The sale and the gas sales
contract are expected to be completed in May 1995.

(4)  COMMITMENTS AND CONTINGENCIES

  ENVIRONMENTAL REGULATION

    Federal, state and local laws and regulations relating to environmental
quality control affect the Company in all of its oil and gas operations. The
Company has been identified as one of over 250 potentially responsible parties
("PRPs") at a superfund site in Los Angeles County, California. The site was
operated by a third party as a waste disposal facility from 1948 until 1983.
The Environmental Protection Agency ("EPA") is requiring the PRPs to undertake
remediation of the site in several phases, which include site monitoring and
leachate control, gas control and final remediation.

    In 1989 the EPA and a group of PRPs that includes the Company entered into
a consent decree covering the site monitoring and leachate control phases of
remediation. The Company is a member of the group Coalition Undertaking
Remediation Efforts ("CURE") which is responsible for constructing and
operating the leachate treatment plant. Treatment tests will begin shortly.
Site monitoring and maintenance will continue throughout the life of the
facility. The Company's share of costs with respect to this phase are expected
to total approximately $2.4 million ($1.3 million after recoveries from
working interest participants in the unit in which the wastes were generated).

    Another consent decree provides for the predesign, design and construction
of a gas plant to harness and market methane gas emissions. The Company is a
member of the New CURE group which is responsible for the gas plant
construction and operation and landfill cover. Currently, New CURE is in the
design stage of the gas plant. The Company's share of costs of this phase is
expected to
                                      6

be of approximately the same magnitude as that of the first phase and such
costs have been provided for in the financial statements.

    As previously discussed, the Company has provided for its share of costs
with respect to the site monitoring, leachate control and gas control phases;
however, it cannot currently estimate the cost of any subsequent phases of
work or final remediation which may be required by the EPA.

    Another consent decree is currently being executed by the PRPs and will be
logged with the court for approval. This consent decree allows for the
settlement of the pending lawsuits against the municipalities and transporters
not named by the EPA. The settlement totals approximately $70.0 million of
which approximately $55.0 million will be credited against future expenses.

    The Company has entered into a Joint Defense Agreement with the other PRPs
to defend against a lawsuit filed September 7, 1994 by ninety-five homeowners
alleging, among other things, nuisance, trespass, strict liability and
infliction of emotional distress. At this stage of the lawsuit the Company is
not able to estimate costs or potential liability but the defendants intend to
aggressively pursue the defense and discovery once all defendants have been
served and answers have been filed.

    On April 4, 1994, the Company received a request from the EPA for
information pursuant to Section 104(e) of CERCLA and a letter ordering the
Company and seven other PRPs to negotiate with the EPA regarding
implementation of a remedial plan for a site located in Santa Fe Springs,
California. The Company owned the property on which the site is located from
1921 to 1932. During that time the property was leased to another company and
in 1932 the property was sold to that company. During the time the other
company leased or owned the property, hazardous wastes were allegedly disposed
at the site. The EPA estimates that the total past and future costs for
remediation will approximate $9.4 million. The Company filed its response to
the Section 104(e) order setting forth its position and defenses based on the
fact that the other company was the lessee and operator of the site during the
time the Company was the owner of the property. However, the Company has also
given its Notice of Intent to comply with the EPA's order to prepare a
remediation design plan. Six of the other PRPs have also notified the EPA of
their intent to comply. The cost of such a remediation design plan is
estimated to be approximately $1.0 million. To date there has been no
agreement on how to allocate costs among the PRPs.

    On March 23, 1995 the Company and twelve other companies received notice
that they have been identified as PRPs by the California Department of Toxic
Substances Control (the "DTSC") as having generated and/or transported
hazardous waste to the Environmental Protection Corporation ("EPC") Eastside
Landfill during its fourteen-year operation from 1971 to 1985. On November 8,
1985 EPC lost its interim status allowing it to operate when it could not
certify full compliance with groundwater and financial requirements. EPC has
liquidated all assets and placed the proceeds in trust for closure and
post-closure activities. However, these monies will not be sufficient to close
the site. The DTSC is seeking additional PRPs for participation in the
forthcoming order for the cleanup of this site. The order will require the
characterization of contamination at the site through a remedial investigation
and feasibility study, preparation of a remedial action plan, remediation of
the site and closure and post-closure activities. The Company is not able to
estimate its exposure with respect to this site at this time.

    There are certain other environmental matters pending, with respect to
which the Company is unable to estimate its exposure at this time.

  EMPLOYMENT AGREEMENTS

    The Company has entered into employment agreements with certain key
employees. The initial term of each agreement expired on December 31, 1990. On
January 1, 1991 and beginning on each January 1 thereafter, each agreement is
automatically extended for one-year periods, unless by September 30 of any year
the Company gives notice that the agreement will not be extended. The term of
the agreements is automatically extended for a minimum of 24 months following a
change of control. The
                                      7

consummation of the Company's transaction with Adobe in 1992 constituted a
change of control as defined in the agreements.

    In the event that following a change of control employment is terminated
for reasons specified in the agreements, the employee would receive: (i) a
lump sum payment equal to two years' base salary; (ii) the maximum possible
bonus under the terms of the Company's incentive compensation plan; (iii) a
lapse of restrictions on any outstanding restricted stock grants and full
payout of any outstanding Phantom Units; (iv) cash payment for each
outstanding stock option equal to the amount by which the fair market value of
the common stock exceeds the exercise price of the option; and, (v) life,
disability and health benefits for a period of up to two years. In addition,
payments and benefits under certain employment agreements are subject to
further limitations based on certain provisions of the Internal Revenue Code.

  OTHER MATTERS

    The Company has certain long-term contracts, which are being administered
by Hadson, ranging up to twelve years for the supply and transportation of
approximately 20 million cubic feet per day of natural gas to the Company's
operations in Kern County, California. In the aggregate, these contracts
involve a minimum commitment on the part of the Company of approximately $9.2
million per year (based on prices and transportation charges in effect for
March 1995).

    There are other claims and actions, including certain other environmental
matters, pending against the Company. In the opinion of management, the
amounts, if any, which may be awarded in connection with any of these claims
and actions could be significant to the results of operations of any period
but would not be material to the Company's consolidated financial position.

(5)  DEBT EXTINGUISHMENT

    In April 1995 the Securities and Exchange Commission issued Staff
Accounting Bulletin No. 94, "Recognition of a Gain or Loss on Early
Extinguishment of Debt" ("SAB 94") which changes in some respects the
accounting which has evolved in practice for gains or losses on anticipated
debt extinguishments. Among other things, SAB 94 precludes the recognition of
a gain or loss from debt extinguishment in a period other than the period in
which the debt is considered extinguished, including circumstances in which a
company announces prior to a period end the intention to retire debt in a
subsequent period.

    In the fourth quarter of 1993 the Company adopted a corporate
restructuring program which included, among other things, retiring certain of
the Company's long-term debt. In accordance with this plan, in 1994 the
Company retired $132.3 million of outstanding Senior Notes and bank debt. The
Company's results of operations for 1993 included $8.6 million in debt
repayment penalties and interest associated with the debt to be retired. Had
SAB 94 been in effect in 1993, such penalties and interest would have been
included in the Company's 1994 results of operations. The following table
reflects, on a proforma basis, the Company's results of operations assuming
SAB 94 was in effect in 1993 (in millions of dollars, except per share data):
<TABLE>
<CAPTION>
                                                  1994                        1993
                                        ------------------------    ------------------------
                                        HISTORICAL     PROFORMA     HISTORICAL     PROFORMA
                                        -----------    ---------    -----------    ---------
<S>                                         <C>            <C>         <C>           <C>
Income (Loss) from Operations........       48.2           48.2        (113.0)       (104.4)
Income (Loss) Before Extraordinary
  Item...............................       17.1           15.1         (77.1)        (71.8)
Extraordinary Item -- Loss on
  Extinguishment of Debt.............        --            (3.3)          --            --
Net Income (Loss)....................       17.1           11.8         (77.1)        (71.8)
Earnings (Loss) Attributable to
  Common Shares......................        5.4            0.1         (84.1)        (78.8)
Earnings (Loss) Per Share
    Extraordinary Item...............        --            (0.04)         --            --
    Attributable to Common Shares....       0.06            --          (0.94)        (0.88)
</TABLE>
                                      8

        MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
                             RESULTS OF OPERATIONS

GENERAL

    As an independent oil and gas producer, the Company's results of
operations are dependent upon the difference between the prices received for
oil and gas and the costs of finding and producing such resources. A
substantial portion of the Company's crude oil production is from long-lived
fields where EOR methods are being utilized. The market price of the heavy
(i.e., low gravity, high viscosity) and sour (i.e., high sulfur content) crude
oils produced in these fields is lower than sweeter, light (i.e., low sulfur
and low viscosity) crude oils, reflecting higher transportation and refining
costs. In addition, the lifting costs of heavy crude oils are generally higher
than the lifting costs of light crude oils. As a result of these narrower
margins, even relatively modest changes in crude oil prices may significantly
affect the Company's revenues, results of operations, cash flows and proved
reserves. In addition, prolonged periods of high or low oil prices may have a
material effect on the Company's financial position.

    The lower price received for the Company's domestic heavy and sour crude
oil is reflected in the average sales price of the Company's domestic crude
oil and liquids for the first quarter of 1995 of $13.52 per barrel, compared
to $16.82 per barrel for West Texas Intermediate ("WTI") crude oil (an
industry posted price generally indicative of spot prices for sweeter light
crude oil). In the first quarter of 1995 the Company's average sales price for
California heavy crude oil was $12.80 per barrel, approximately 76% of the
average posted price for WTI. This ratio is considered positive since
historically heavy crude oil has sold for an average of approximately 66% of
WTI.

    Crude oil prices are subject to significant changes in response to
fluctuations in the domestic and world supply and demand and other market
conditions as well as the world political situation as it affects OPEC, the
Middle East and other producing countries. During the first quarter of 1995
the actual average sales price received by the Company averaged $13.85 per
barrel compared to $10.00 per barrel in the first quarter of 1994. Based on
operating results for the first quarter of 1995, the Company estimates that,
on an annualized basis, a $1.00 per barrel increase or decrease in its average
domestic crude oil sales prices would result in a corresponding $19.9 million
change in income from operations and a $14.9 million change in cash flow from
operating activities. The foregoing estimates do not give effect to changes in
any other factors, such as the effect on depreciation and depletion, that
would result from a change in oil prices.

    The Company's oil prices have shown improvement in recent months. Heavy
oil prices, which averaged $12.47 per barrel in the fourth quarter of 1994,
averaged $12.80 per barrel in the first quarter of 1995 and $13.15 per barrel
in March 1995. Sales prices for the Company's other domestic crude oil
averaged $15.02 per barrel in the first quarter of 1995, compared to $14.22
per barrel in the fourth quarter of 1994, and $15.15 per barrel in March 1995.
Similar improvement has been realized in the Company's foreign sales prices.
April 1995 posted prices for heavy oil and WTI averaged 7-8% higher than
March, indicating further improvement in sales prices.

    The price of natural gas fluctuates due to weather conditions, the level
of natural gas in storage, the relative balance between supply and demand and
other economic factors. The actual average sales price (unhedged) received by
the Company in the first quarter of 1995 for its natural gas averaged $1.31
per Mcf compared to $2.10 per Mcf in the first quarter of 1994. Based on
operating results for the first quarter of 1995, the Company estimates that,
on an annualized basis, a $0.10 per Mcf increase or decrease in its average
domestic natural gas sales price would result in a corresponding $4.5 million
change in income from operations and a $3.4 million change in cash flow from
operating activities. The foregoing estimates do not give effect to changes in
any other factors, such as the effect on depletion and depreciation, that
would result from a change in natural gas prices.

                                      9
<PAGE>

RESULTS OF OPERATIONS

  REVENUES

    The following table reflects the components of the Company's crude oil and
liquids and natural gas revenues:

                                           THREE MONTHS
                                          ENDED MARCH 31,
                                       --------------------
                                         1995       1994
                                       ---------  ---------
Crude Oil and Liquids
  Revenues ($/Millions)
    Sales
      Domestic
        California Heavy.............       43.6       29.2
        Other........................       24.8       21.1
                                       ---------  ---------
                                            68.4       50.3
        Argentina....................        3.4        2.3
        Indonesia....................        8.3        6.8
      Net Profits Payments...........       (1.1)      (0.8)
                                       ---------  ---------
                                            79.0       58.6
                                       =========  =========
  Volumes (MBbls/day)
    Domestic
      California Heavy...............       37.9       37.8
      Other..........................       18.2       20.2
                                       ---------  ---------
                                            56.1       58.0
    Argentina........................        2.5        2.5
    Indonesia........................        5.6        5.5
                                       ---------  ---------
                                            64.2       66.0
                                       =========  =========
  Sales Prices ($/Bbl)
    Domestic
      California Heavy...............      12.80       8.60
      Other..........................      15.02      11.59
      Total..........................      13.52       9.64
    Argentina........................      15.04      10.27
    Indonesia........................      16.64      13.74
    Total............................      13.85      10.00
Natural Gas
  Revenues ($/Millions)
    Sales............................       15.4       29.3
    Hedging..........................     --           (0.3)
    Net Profits Payments.............       (0.4)      (0.9)
                                       ---------  ---------
                                            15.0       28.1
                                       =========  =========
  Volumes (MMcf/day).................      130.5      155.5
  Sales Prices ($/Mcf)
    Unhedged.........................       1.31       2.10
    Hedged...........................       1.31       2.07

    Total revenues increased 9% from $90.3 million in the first quarter of
1994 to $98.6 million in the first quarter of 1995. Crude oil and liquids
revenues increased from $58.6 million in the first quarter of 1994 to $79.0
million in the first quarter of 1995 primarily reflecting improved market
conditions which resulted in an increase in the Company's average sales price
from $10.00 per barrel in 1994 to $13.85 per barrel in 1995. Oil and liquids
production in the first quarter of 1995 of 64,200 barrels per day was 1,800
barrels per day below the first quarter of 1994, primarily reflecting the sale
to Bridge Oil (U.S.A.) Inc. ("Bridge") in the second quarter of 1994 of
properties which produced
                                     10

approximately 1,200 barrels per day in the first quarter of 1994. Natural gas
revenues decreased from $28.1 million in the first quarter of 1994 to $15.0
million in the first quarter of 1995 as the Company's average sales price
(hedged) dropped from $2.07 per Mcf in 1994 to $1.31 per Mcf in 1995 and sales
volumes declined from 155.5 MMcf per day in 1994 to 130.5 MMcf per day in
1995. The decline in sales volumes primarily reflects the sale to Bridge of
properties which produced approximately 13.5 Mmcf per day in the first quarter
of 1994, the loss of a well (which will be redrilled later in the year) which
produced approximately 6.0 MMcf per day and price related curtailments in the
first quarter of 1995 of approximately 4.0 MMcf per day.

  COSTS AND EXPENSES

    The following table sets forth, on the basis of the barrel of oil
equivalent ("BOE") produced by the Company during the applicable period,
certain of the Company's costs and expenses (in dollars):

                                           THREE MONTHS
                                          ENDED MARCH 31,
                                       --------------------
                                         1995       1994
                                       ---------  ---------
Production and operating costs per
BOE (a)..............................     4.99       4.91
Exploration, including dry hole costs
  per BOE............................     0.78       0.61
Depletion, depreciation and
  amortization per BOE...............     4.04       3.88
General and administrative costs per
  BOE................................     0.76       0.92
Taxes other than income per BOE
  (b)................................     0.56       0.90
Interest, net, per BOE (c)...........     1.07       1.40(d)
- ---------
  (a) Excluding related production, severance and ad valorem taxes.

  (b) Includes production, severance and ad valorem taxes.

  (c) Reflects interest expense less amounts capitalized and interest income.

  (d) Excludes effect of benefit of adjustment to provisions made in prior
      periods with respect to interest on certain federal income tax audit
      adjustments of $0.29 per BOE.

    Total costs and expenses for the first quarter of 1995 totalled $86.1
million compared to $90.3 million in the first quarter of 1994. Exploration
expenses were up $1.0 million primarily due to higher dry hole costs (up $2.2
million) partially offset by lower geological and geophysical costs. The
property sale to Bridge resulted in reductions in production and operating
costs, depletion, depreciation and amortization and taxes other than income of
$0.9 million, $0.7 million and $0.9 million, respectively. Taxes other than
income in the first quarter of 1995 also includes benefits of $1.0 million
related to an adjustment to ad valorem taxes recorded in prior periods and
$0.7 million related to the settlement of certain disputed sales and use
taxes. Costs and expenses for the first quarter of 1994 include $7.0 million
in restructuring charges and a $9.4 million gain on the sale of certain oil
and gas properties.

    Interest expense for the first quarter of 1994 includes a $2.4 million
benefit related to an adjustment to provisions made in prior periods with
respect to interest on certain federal income tax audit adjustments.

    Other income (expense) for 1995 includes a $2.3 million gain on the sale
of the Company's interest in Cherokee Resources Incorporated, a privately-held
oil and gas company. Such amount for 1994 includes a $0.8 million net benefit
with respect to the Company's investment in Hadson Corporation.

    Income taxes for the first quarter of 1994 includes a $3.0 million benefit
related to an adjustment to provisions made in prior periods with respect to
certain federal income tax audit adjustments.

    In March 1995 the Financial Accounting Standards Board adopted Statement
of Financial Accounting Standards ("SFAS") No. 121, "Accounting for the
Impairment of Long-Lived Assets and for Long-Lived Assets to be Disposed of",
effective for financial statements for fiscal years beginning after December
15, 1995. SFAS No. 121 establishes accounting standards for the impairment of
long-
                                     11

lived assets, certain identifiable intangibles and goodwill related to those
assets to be held and used and for long-lived assets and certain identifiable
intangibles to be disposed of. The Company expects to adopt the provisions of
SFAS No. 121 effective January 1, 1996. Had SFAS No. 121 been adopted by the
Company effective January 1, 1995, the adoption would have had no effect on
the Company's results of operations or financial position.

LIQUIDITY AND CAPITAL RESOURCES

    The Company's cash flow from operating activities is a function of the
volumes of oil and gas produced from the Company's properties and the sales
prices received therefor. Since crude oil and natural gas are depleting
assets, unless the Company replaces the oil and gas produced from its
properties, the Company's assets will be depleted over time and its ability to
incur debt at constant or declining prices will be reduced. The Company
increased its proved reserves (net of production and sales) by approximately
19% over the five years ended December 31, 1994; however, no assurances can be
given that such increase will occur in the future. Historically, the Company
has generally funded capital and exploration expenditures and working capital
requirements from cash provided by operating activities. Depending upon the
future levels of operating cash flows, which are significantly affected by oil
and gas prices, the restrictions on additional borrowings included in certain
of the Company's debt agreements, together with debt service requirements and
dividends, may limit the cash available for future exploration, development
and acquisition activities. Net cash provided by operating activities totalled
$20.2 million in the first quarter of 1995; net cash used in investing
activities (excluding proceeds from the sales of properties) in such period
totalled $45.8 million.

    The Company expects to expend approximately $190 million on its 1995
capital program; however, the actual amount expended by the Company in 1995
will be based upon numerous factors, the majority of which are outside its
control, including, without limitation, prevailing oil and natural gas prices
and the outlook therefor and the availability of funds. Through March 31, the
Company had expended approximately $38.5 million on its 1995 program.

    In February 1995 the Company entered into a Securities Purchase Agreement
under the terms of which the Company agreed to sell its holdings in Hadson
Corporation ("Hadson") for $55.3 million. In addition, the Company agreed to
negotiate with the purchaser certain amendments to its existing gas sales
contract with which if consummated will result in additional consideration to
the Company. The Company's total investment in Hadson at March 31, 1995 of
$57.0 million represents management's best estimate of the realizable value of
the investment at that date. The sale and the gas sales contract are expected
to be completed in May 1995.

    Effective April 1, 1995 the Company entered into the Second Amended and
Restated Revolving Credit Agreement (the "Credit Agreement"), an unsecured
revolving credit agreement which matures December 31, 1998. The maximum
borrowing limits under the Credit Agreement are initially $125.0 million,
$105.0 million beginning February 28, 1996, $65.0 million beginning February
28, 1997 and $30.0 million beginning February 28, 1998. Interest rates under
the Credit Agreement are tied to LIBOR or the bank's prime rate with the
actual interest rate reflecting certain ratios based upon the Company's
ability to repay its outstanding debt and the value and projected timing of
production of the Company's oil and gas reserves. These and other similar
ratios will also affect the Company's ability to borrow under the Credit
Agreement and the timing and amount of any required repayments and
corresponding commitment reductions. The Credit Agreement replaces the Amended
and Restated Revolving Credit Agreement which the Company had entered into in
March 1994. At May 1, 1995, $6.3 million in letters of credit were outstanding
under the terms of the Credit Agreement.

    In the first quarter of 1995 the Company retired the $10.0 million balance
of a loan from an Argentine bank. The loan, which related to the Company's
purchase of an interest in a producing oil field in Argentina in 1991, bore
interest at 13% at the time it was retired.

                                     12

    The Company has three short-term uncommitted lines of credit totalling
$50.0 million which are used to meet short-term cash needs. Interest rates on
borrowings under these lines of credit are typically lower than rates paid
under the Bank Facility. At March 31, 1995 no amounts were outstanding under
these lines of credit.

    Certain of the Company's credit agreements and the indenture for the
Debentures restrict the Company's ability to take certain actions, including
covenants that restrict the Company's ability to incur additional indebtedness
and to pay dividends on its capital stock. Under the most restrictive of these
covenants, at March 31, 1995 the Company could incur up to $191.9 million of
additional indebtedness and pay dividends of up to $106.2 million on its
aggregate capital stock (including its common stock, 7% Convertible Preferred
Stock and Series A Preferred) with the amount payable on its common stock
limited to $50.5 million.

ENVIRONMENTAL MATTERS

    Almost all phases of the Company's oil and gas operations are subject to
stringent environmental regulation by governmental authorities. Such
regulation has increased the costs of planning, designing, drilling,
installing, operating and abandoning oil and gas wells and other facilities.
The Company has expended significant financial and managerial resources to
comply with such regulations. Although the Company believes its operations and
facilities are in general compliance with applicable environmental
regulations, risks of substantial costs and liabilities are inherent in oil
and gas operations. It is possible that other developments, such as
increasingly strict environmental laws, regulations and enforcement policies
or claims for damages to property, employees, other persons and the
environment resulting from the Company's operations, could result in
significant costs and liabilities in the future. As it has done in the past,
the Company intends to fund its cost of environmental compliance from
operating cash flows. See Note 4 to the Consolidated Financial Statements.

DIVIDENDS

    Dividends on the Company's 7% Convertible Preferred Stock and Series A
Preferred are cumulative at an annual rate of $1.40 per share and $0.732 per
share, respectively. No dividends may be declared or paid with respect to the
Company's common stock if any dividends with respect to the convertible
preferred stock or Series A Preferred are in arrears. As part of the 1993
restructuring program, the Company eliminated the payment of its $0.04 per
share quarterly dividend on its common stock. The determination of the amount
of future cash dividends, if any, to be declared and paid on the Company's
common stock is in the sole discretion of the Company's Board of Directors and
will depend on dividend requirements with respect to the preferred stock, the
Company's financial condition, earnings and funds from operations, the level
of capital and exploration expenditures, dividend restrictions in financing
agreements, future business prospects and other matters the Board of Directors
deems relevant.
                                     13
<PAGE>
                                   PART II
                              OTHER INFORMATION

    Item 6.  Exhibits and Reports on Form 8-K

    (a)  Exhibits

     EXHIBIT
     NUMBER                               DESCRIPTION
     -------                              -----------

      10(a)    --  Second Amended and Restated Revolving Credit Agreement dated
                   as of April 1, 1995 among Santa Fe Energy Resources, Inc.,
                   the banks signatory thereto, and Texas Commerce Bank National
                   Association as Co-Agent and Administrative Agent and
                   NationsBank of Texas, N.A. as Co-Agent.

      10(b)    --  Letter of Credit Agreement among Santa Fe Energy Resources,
                   Inc., the banks signatory thereto, and Texas Commerce Bank
                   National Association as Co-Agent and Administrative Agent and
                   NationsBank of Texas, N.A. as Co-Agent, dated as of April 1,
                   1995.

    (b)  Reports on Form 8-K

               DATE                ITEM NO.
         ----------------          --------
          April 20, 1995               5

                                     14
<PAGE>
                                  SIGNATURES

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

                                           SANTA FE ENERGY RESOURCES, INC.
                                                     (Registrant)

                                        By   /s/ R. GRAHAM WHALING
                                                 R. Graham Whaling
                                               Senior Vice President
                                               and Chief Financial Officer
                                               (Principal Financial and
                                               Accounting Officer)
Houston, Texas
May 9, 1995
                                     15



                                                                Exhibit 10(a)

            A SECOND AMENDED AND RESTATED REVOLVING CREDIT AGREEMENT

                           DATED AS OF APRIL 1, 1995

                                     AMONG

                        SANTA FE ENERGY RESOURCES, INC.,

                          THE BANKS SIGNATORY HERETO,

                    TEXAS COMMERCE BANK NATIONAL ASSOCIATION
                      AS CO-AGENT AND ADMINISTRATIVE AGENT

                                      AND

                           NATIONSBANK OF TEXAS, N.A.
                                  AS CO-AGENT
<PAGE>
                               TABLE OF CONTENTS

Section 1. DEFINITIONS AND ACCOUNTING MATTERS.............................  1
           1.1.      CERTAIN DEFINED TERMS................................  1
           1.2.      ACCOUNTING TERMS AND DETERMINATIONS.................. 30
           1.3.      TYPES OF LOANS....................................... 31

Section 2. COMMITMENTS.................................................... 31
           2.1.      LOANS................................................ 31
           2.2.      TERMINATIONS, REDUCTIONS AND CHANGES OF COMMITMENTS.. 32
           2.3.      FEES................................................. 33
           2.4.      AFFILIATES; LENDING OFFICES.......................... 34
           2.5.      SEVERAL OBLIGATIONS.................................. 34
           2.6.      NOTES................................................ 34
           2.7.      OPTIONAL RESERVE REPORT.............................. 34
           2.8.      USE OF PROCEEDS...................................... 35

Section 3. BORROWINGS, PREPAYMENTS AND SELECTION OF INTEREST RATES........ 35
           3.1.      BORROWINGS........................................... 35
           3.2.      PREPAYMENTS.......................................... 35
           3.3.      SELECTION OF INTEREST RATES.......................... 36

Section 4. PAYMENTS OF PRINCIPAL AND INTEREST............................. 37
           4.1.      REPAYMENT OF LOANS................................... 37
           4.2.      INTEREST............................................. 37

Section 5. PAYMENTS; PRO RATA TREATMENT; COMPUTATIONS, ETC................ 37
           5.1.      PAYMENTS............................................. 37
           5.2.      PRO RATA TREATMENT................................... 38
           5.3.      COMPUTATIONS......................................... 38
           5.4.      MINIMUM AND MAXIMUM AMOUNTS.......................... 38
           5.5.      CERTAIN ACTIONS, NOTICES, ETC........................ 39
           5.6.      NON-RECEIPT OF FUNDS BY THE AGENT.................... 40
           5.7.      SHARING OF PAYMENTS, ETC............................. 40

Section 6. YIELD PROTECTION AND ILLEGALITY................................ 41
           6.1.      ADDITIONAL COSTS..................................... 41
           6.2.      LIMITATION ON TYPES OF LOANS......................... 43
           6.3.      ILLEGALITY........................................... 43
           6.4.      SUBSTITUTE ALTERNATE BASE RATE LOANS................. 44
           6.5.      COMPENSATION......................................... 44
           6.6.      CAPITAL ADEQUACY..................................... 45

Section 7. CONDITIONS PRECEDENT........................................... 46
           7.1.      CLOSING CONDITIONS................................... 46

                                      -i-

           7.2.      ALL LOANS............................................ 47

Section 8. REPRESENTATIONS AND WARRANTIES................................. 48
           8.1.      CORPORATE EXISTENCE.................................. 48
           8.2.      INFORMATION.......................................... 48
           8.3.      LITIGATION; COMPLIANCE............................... 49
           8.4.      NO BREACH............................................ 49
           8.5.      CORPORATE ACTION..................................... 49
           8.6.      APPROVALS............................................ 49
           8.7.      REGULATIONS G, U AND X............................... 50
           8.8.      ERISA................................................ 50
           8.9.      TAXES................................................ 50
           8.10.     SUBSIDIARIES......................................... 50
           8.11.     INVESTMENT COMPANY ACT............................... 50
           8.12.     PUBLIC UTILITY HOLDING COMPANY ACT................... 50
           8.13.     ENVIRONMENTAL MATTERS................................ 51
           8.14.     TITLE................................................ 51

Section 9. COVENANTS...................................................... 52
           9.1.      FINANCIAL STATEMENTS AND CERTIFICATES................ 52
           9.2.      INSPECTION OF PROPERTY............................... 55
           9.3.      COMPLIANCE WITH ENVIRONMENTAL LAWS................... 55
           9.4.      PAYMENT OF TAXES..................................... 55
           9.5.      MAINTENANCE OF INSURANCE............................. 56
           9.6.      RESTRICTED PAYMENTS AND RESTRICTED INVESTMENTS....... 56
           9.7.      LIEN, DEBT AND OTHER RESTRICTIONS.................... 57
           9.8.      ISSUANCE OF STOCK BY RESTRICTED SUBSIDIARIES......... 66
           9.9.      COVERAGE RATIOS...................................... 66

Section 10. DEFAULTS...................................................... 67
           10.1.     EVENTS OF DEFAULT.................................... 67

Section 11. THE AGENT..................................................... 70
           11.1.     APPOINTMENT, POWERS AND IMMUNITIES................... 70
           11.2.     RELIANCE BY AGENT.................................... 70
           11.3.     DEFAULTS............................................. 71
           11.4.     RIGHTS AS A BANK..................................... 71
           11.5.     INDEMNIFICATION...................................... 71
           11.6.     NON-RELIANCE ON THE AGENT AND OTHER BANKS............ 72
           11.7.     FAILURE TO ACT....................................... 72
           11.8.     RESIGNATION OR REMOVAL OF THE AGENT.................. 72

Section 12. MISCELLANEOUS................................................. 73
           12.1.     WAIVER............................................... 73
           12.2.     NOTICES.............................................. 73

                                      -ii-

           12.3.     EXPENSES, ETC........................................ 73
           12.4.     INDEMNIFICATION...................................... 74
           12.5.     AMENDMENTS, ETC...................................... 75
           12.6.     SUCCESSORS AND ASSIGNS............................... 75
           12.7.     SURVIVAL; TERM; REINSTATEMENT........................ 78
           12.8.     LIMITATION OF INTEREST............................... 78
           12.9.     CAPTIONS............................................. 79
           12.10.    COUNTERPARTS......................................... 79
           12.11.    GOVERNING LAW........................................ 79
           12.12.    SEVERABILITY......................................... 79
           12.13.    CHAPTER 15 NOT APPLICABLE............................ 79
           12.14     1994 AGREEMENT TERMINATED............................ 80

Exhibit A - Form of Note
Exhibit B - Request for Extension of Credit
Exhibit C - Assignment Agreement

Schedule I    - Restricted and Unrestricted Subsidiaries
Schedule II   - Liens and Funded Debt
Schedule III  - 1995 Assumptions
Schedule IV   - Coverage Report
Schedule V    - Subordination Provisions
Schedule VI   - Opinion of Andrews & Kurth, L.L.P.
Schedule VII  - Opinion of David L. Hicks
Schedule VIII - Jurisdictions for Which Certificates Are to Be Provided

                                     -iii-

             SECOND AMENDED AND RESTATED REVOLVING CREDIT AGREEMENT

        This Second Amended and Restated Revolving Credit Agreement (as amended,
modified, supplemented and restated from time to time, this "AGREEMENT") dated
as of April 1, 1995, 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. ("NATIONSBANK"), a national banking association,
as Co-Agents (in such capacity, the "CO-AGENTS").

INTRODUCTION.

        The Company, the Banks, the Agent and the Co-Agents entered into that
certain Amended and Restated Revolving Credit Agreement dated as of March 16,
1994 (the "1994 AGREEMENT"). They now wish to amend and restate that agreement
as it has been amended prior to the date hereof.

AGREEMENTS.

        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:

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

        "ADJUSTED FLOOR AMOUNT" shall mean the lesser of (a) $50,000,000 and (b)
the Aggregate Commitment that would have been produced by the application, at
the time of the determination of the Adjusted Floor Amount, of the 1995
Assumptions and the Most Recent Engineering Report, in each case as reduced from
time to time pursuant to SECTION 2.2 (except SECTION 2.2(a)(3) and SECTION
2.2(a)(4) (to the extent it reflects SECTION 2.2(a)(3)).

        "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
                                      -1-

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 December 31, 1998, 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 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 or the Prime Rate shall be effective on the effective date of
such change in the Fed Funds Rate or the Prime 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 hereof, the Alternate Base Rate shall
be the Prime Rate until the circumstances giving rise to such inability no
longer exist.

        "ALTERNATE BASE RATE LOANS" shall mean Loans which bear interest at a
rate based upon the Alternate Base Rate.

        "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
                                      -2-

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, and
(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.

        "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 December 31, 1998, 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 pursuant to SECTION 9.1 and
taking into account any incurrence or 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 and for each Type
of Loan, the lending office of such Bank (or of an Affiliate of such Bank)
designated for such Type of Loan 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

                                      -3-

Company as the office by which its Loans of such Type are to be made and/or
issued and maintained.

        "APPLICABLE MARGIN" shall mean, on any day:

        (a) With respect to any Alternate Base Rate Loan, the per annum
percentage set forth at the appropriate intersection in the table shown below;
where the vertical axis is the SLOR Coverage Ratio on such day (assuming the
Available Amount is fully drawn for determinations related to the Independent
Engineering Report and on the basis of the actual aggregate amount of
outstanding Loans and Letter of Credit Liabilities for all other determinations)
and the horizontal axis is the Annual Debt Service Coverage Ratio on such day
(assuming the Available Amount is fully drawn for determinations related to the
Independent Engineering Report and on the basis of the actual aggregate amount
of outstanding Loans and Letter of Credit Liabilities for all other
determinations):
                           ALTERNATE BASE RATE LOANS

             SLOR                               ANNUAL DEBT SERVICE
         COVERAGE RATIO                           COVERAGE RATIO
         --------------           ----------------------------------------------
                                                    EQUAL TO OR
                                                   GREATER THAN     EQUAL TO OR
                                  LESS THAN        1.20 BUT LESS    GREATER THAN
                                    1.20             THAN 1.25          1.25
                                  ---------        -------------    ------------
        Less   than 1.85            .75%                 .75%           .75%

        Equal to or greater
        than 1.85 but less
        than 1.95                   .50%                 .25%           .25%

        Equal to or greater
        than 1.95 but less
        than 2.00                   .50%                 0%              0%

        Equal to or greater
        than 2.00                   .50%                 0%              0%

The initial Applicable Margin for Alternate Base Rate Loans shall be 0% per
annum. The Applicable Margin shall be determined upon the delivery of each
Independent Engineering Report and on the basis of the most recently determined
SLOR Coverage Ratio and Annual Debt Service Coverage Ratio. Thereafter, the
Applicable Margin shall be determined according to the preceding table at the
time of each delivery of a Coverage Report and each Request for Extension of
Credit, but shall never be less than the Applicable Margin determined upon the
delivery of such Independent Engineering Report until the next determination of
the SLOR
                                      -4-

Coverage Ratio and Annual Debt Service Coverage Ratio in accordance with this
definition at the time of the delivery of the next Independent Engineering
Report, whereupon the minimum Applicable Margin shall be reset.

        (b) The Applicable Margin for any Eurodollar Loan on any day shall be
1.00% more than the Applicable Margin for Alternate Base Rate Loans in effect on
such day, except when the SLOR Coverage Ratio shall be equal to or greater than
2.00 AND the Annual Debt Service Coverage Ratio shall be equal to or greater
than 1.25, in which case the Applicable Margin for any Eurodollar Loan shall be
.75% per annum. The initial Applicable Margin for Eurodollar Loans shall be .75%
per annum.

        "APPLICABLE PERIOD" shall mean any of the following periods:February 28,
1995 through February 27, 1996; February 28, 1996 through December 30, 1996;
December 31, 1996 through February 27, 1997; February 28, 1997 through February
27, 1998; February 28, 1998 through December 30, 1998; and December 31, 1998.

        "APPROVED ASSUMPTIONS" shall mean:

        (a) until the first delivery of an Independent Engineering Report
hereunder, the 1995 Assumptions;

        (b) thereafter, for each Independent Engineering Report hereunder, and
subject to SECTION 2.1(b)(2), 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 2.7 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 2.7.

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

                                      -5-

        "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.

        "AVAILABLE AMOUNT" shall mean the Preliminary Available Amount from time
to time in effect, as the same may be adjusted upward and downward in accordance
with SECTION 2.1(b) or permanently decreased in accordance with SECTION 2.2.

        "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, and where such term is used in the definition of "QUARTERLY DATE" or, if
such day relates to a borrowing of, a payment or prepayment of principal of or
interest on, or an Interest Period for, a Eurodollar Loan or a notice by the
Company with respect to any such borrowing, payment, prepayment or Interest
Period, which is also a day on which dealings in dollar deposits are carried out
in the relevant Eurodollar interbank market.

        "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 April 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 GAAP.

        "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

                                      -6-

Expense PLUS (d) anticipated net income (or minus anticipated net losses) from
the Price Protection Agreements (determined on the basis of the Most Recent
Approved Assumptions), (e) PLUS any anticipated gain, and MINUS any anticipated
loss, on Interest Rate Protection Agreements (determined on the basis of the
Most Recent Approved Assumptions), PLUS (f) other income from operations as
reasonably projected under the Most Recent 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 prepayments pursuant to SECTION 3.2(b), 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 (1) Beneficially
Own more than 50% of the aggregate voting power of all classes of Voting Stock
of the Company or (2) 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.

        "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 make Loans to the Company 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 Letter of Credit Liabilities, which amount shall never exceed 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 2.2 or modified pursuant to SECTION 12.6).

        "COMMITMENT FEE" shall have the meaning ascribed to such term in SECTION
2.3(a).

        "COMMITMENT PERCENTAGE" shall mean, as to any Bank, the percentage
equivalent of a fraction, the numerator of which is the amount set forth
opposite such Bank's name on the signature pages hereof under the caption
"Commitment" subject to modification and the identification of new Banks
pursuant to SECTION 12.6, and the denominator of which is $125,000,000.

        "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 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
                                      -8-

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:

               (1) 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;

               (2) any reacquired shares or reacquired Debt of the Company or 
the Restricted Subsidiaries;

               (3) any write-up of assets made after December 31, 1989;

               (4) 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 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

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

                                      -9-

        (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:

               (1) 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;

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

               (3) all other liabilities of the Company and the Restricted
Subsidiaries, including the reduction in equity attributable 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.

        "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; (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)
                                      -10-
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, the Notes, the Letter of
Credit Agreement, the Notice of Entire 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 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 the Letter
of Credit 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.
                                      -11-

        "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 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
2.1(d), 2.2(a)(3), 7.2(a), 7.2(e), 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, 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 or after December 5, 1990 is under common control with
the Company within the meaning of the regulations under Section 414 of the Code.

        "EURODOLLAR BASE RATE" shall mean, with respect to any Interest Period
for any Eurodollar Loan, the lesser of (a) the rate per annum (rounded upwards,
if necessary, to the nearest
                                      -12-

1/100%) determined by the Agent based upon rates quoted at approximately 11:00
a.m. (local time in the relevant Eurodollar interbank market) (or as soon
thereafter as practicable) on the day two Business Days prior to the first day
of such Interest Period for the offering BY TCB TO leading dealers in such
Eurodollar interbank market of dollar deposits for delivery on the first day of
such Interest Period, in immediately available funds and having a term
comparable to such Interest Period and in an amount comparable to the principal
amount of the respective Eurodollar Loan to which such Interest Period relates
or (b) the Highest Lawful Rate. Each determination of the Eurodollar Base Rate
shall be conclusive and binding, absent manifest error, and may be computed
using any reasonable averaging and attribution method.

        "EURODOLLAR LOANS" shall mean Loans the interest on which is determined
on the basis of rates referred to in the definition of "EURODOLLAR BASE RATE".

        "EURODOLLAR RATE" shall mean, for any Interest Period for any Eurodollar
Loan, a rate per annum (rounded upwards, if necessary, to the nearest 1/100%)
determined by the Agent to be equal to the product of (a) the Eurodollar Base
Rate for such Loan for such Interest Period times (b) Statutory Reserves.

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

        "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.

        "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.

        "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)

                                      -13-

        (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.

        "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,

                                      -14-

regulatory or administrative, having jurisdiction over the Company, any of the
Company's Subsidiaries, any of their respective property, the Agent, either
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 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
                                      -15-

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.

        "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. 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 the Most Recent 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 PAYMENT DATE" shall mean with respect to any Eurodollar Loan
or Alternate Base Rate Loan, the last day of each Interest Period applicable
thereto; PROVIDED that in the case of a Eurodollar Loan with an Interest Period
of six months, the Interest Payment Dates shall be the days that would have been
the Interest Payment Dates for such Loan had two successive Interest Periods of
three months been applicable to such Loan.

                                      -16-

        "INTEREST PERIOD" shall mean:

        (a) with respect to any Eurodollar Loan, the period commencing on (1)
the date such Loan is designated as or converted into or continued as a
Eurodollar Loan or (2) in the case of a Rollover to a successive Interest
Period, the last day of the immediately preceding Interest Period, and ending on
the numerically corresponding day in the first, second, third or sixth calendar
month thereafter, as the Company may select as provided in SECTION 3.3, except
that each such Interest Period which commences on any day for which there is no
numerically corresponding day in the appropriate subsequent calendar month shall
end on the last Business Day of the appropriate subsequent calendar month; and

        (b) with respect to any Alternate Base Rate Loan, the period commencing
on the date such Loan is made as, or converted into, an Alternate Base Rate Loan
and on each Quarterly Date thereafter and ending on each next succeeding
Quarterly Date;

PROVIDED that (x) if any Interest Period would end on a day which shall not be a
Business Day, such Interest Period shall be extended to the next succeeding
Business Day unless, with respect to Eurodollar Loans only, such next succeeding
Business Day would fall in the next calendar month, in which case such Interest
Period shall end on the next preceding Business Day; (y) no Interest Period may
be selected for any Loan that ends later than the Termination Date or that
causes the aggregate amount of Loans subject to Interest Periods extending
beyond the next scheduled reduction in the Preliminary Available Amount to
exceed the Preliminary Available Amount scheduled to be in effect after such
reduction; and (z) no Interest Period may be selected that ends later than
December 31, 1998. Interest shall accrue from and including the first day of an
Interest Period to but excluding the last day of such Interest Period.

        "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 and the
Restricted Subsidiaries as at the end of the quarter ending immediately prior to
such contribution.
                                      -17-

        "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 the
Letter of Credit Agreement.

        "LETTER OF CREDIT AGREEMENT" shall mean that certain Letter of Credit
Agreement of even date herewith, among the Company, the Agent, the Co-Agents,
and the Banks.

        "LETTER OF CREDIT COMMITMENT" shall mean the Commitment (as defined in
the Letter of Credit Agreement).

        "LETTER OF CREDIT LIABILITIES" shall have the meaning ascribed to such
term in the Letter of Credit Agreement.

        "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.

        "LOAN" shall mean a loan made pursuant to SECTION 2.1(a) and Rollovers
of such loans.

        "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.

        "MATURITY DATE" shall mean the earlier of (a) the date the principal
amount then outstanding of and accrued interest on the Loans and all fees and
all other amounts payable hereunder and under the Notes become due and payable
pursuant to SECTION 10.1 or (b) December 31, 1998.

        "MERGER" shall mean the merger of Adobe Resources Corporation 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), 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

                                      -18-

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, (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 APPROVED ASSUMPTIONS" shall mean, as of any date of
determination, the Approved Assumptions most recently determined and approved
pursuant to the definition of "Approved Assumptions" on or prior to such date of
determination, if and as adjusted pursuant to SECTION 2.1(b)(2).

        "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 2.7, the Independent Engineering Report of
Ryder Scott Company Petroleum Engineers dated February 9, 1995; (b) thereafter,
the most recent Independent Engineering Report delivered pursuant to either
SECTION 9.1 or SECTION 2.7 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 Most Recent 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.

        "1995 ASSUMPTIONS" shall mean the assumptions set forth on SCHEDULE III.

                                      -19-

        "NOTES" shall mean the promissory notes of the Company evidencing the
Loans, in the form of EXHIBIT A.

        "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.

        "OBLIGATIONS" shall mean, as at any date of determination thereof, the
sum of (a) the aggregate principal amount of Loans outstanding hereunder 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 2.7.

        "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.

        "PERMITTED ENCUMBRANCES" shall mean:

        (a)    liens for taxes, assessments or governmental charges not yet due
               and delinquent, and for taxes, assessments or governmental
               charges already due, but the validity of which is being contested
               by the Company in good faith by appropriate proceedings
               diligently conducted for which reserves have been established in
               accordance with generally accepted accounting principles;

        (b)    materialmen's, mechanics', repairmen's, employees', operators',
               landlords' and other similar liens and charges incidental to the
               conduct of the Company's business or the ownership of its
               Property 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 the
               Property covered thereby or materially impair the use thereof in
               the operation of the Company's business;

                                      -20-

        (c)    royalties, overriding royalties, net profits interests,
               production payment interests, carried interests and other burdens
               on production of a scope and nature customary in the conduct of
               the Company's business;

        (d)    defects, imperfections and irregularities in title;

        (e)    liens, security interests, charges, claims and encumbrances that
               arise under operating agreements pooling and unitization
               designations, declarations, orders and agreements and other
               similar agreements of a scope and nature customary in the oil and
               gas industry;

        (f)    the terms of operating agreements, assignments, farmout
               agreements, hydrocarbon sales, purchase, exchange and processing
               agreements, area-of mutual interest agreements, gas balancing and
               deferred production agreements, plant agreements, pipeline
               gathering and transportation agreements, injection, repressuring
               and recycling agreements, salt water or other disposal
               agreements, seismic or geophysical permits and agreements, and
               other contracts, division orders and agreements;

        (g)    the right of third parties under oil and gas leases to take
               production in kind;

        (h)    all liens, charges, claims, encumbrances, contracts and other
               matters consented to in writing from time to time by the Agent;

        (i)    all rights to consent by, required notices to, and filings with
               or other actions by governmental or tribal entities, if any, in
               connection with the change of ownership or control of an interest
               in federal, state, tribal or other domestic governmental oil and
               gas leases, if the same are customarily obtained after such
               change of ownership or control, but only insofar as such
               consents, notices, filings and other actions are obtained within
               the time required under applicable Legal Requirements;

        (j)    required third-party consents to assignments, to the extent they
               could not reasonably be expected, individually or in the
               aggregate, to have a Material Adverse Effect;

        (k)    liabilities for royalty suspense accounts, to the extent they
               could not reasonably be expected, individually or in the
               aggregate, to have a Material Adverse Effect; and

        (l)    easements, rights-of-way and the like, incidental to the conduct
               of the Company's business or the ownership of its Property 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

                                      -21-

               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 the Property covered thereby or materially impair
               the use thereof in the operation of the Company's business;

PROVIDED, that all Permitted Encumbrances shall not in the aggregate have a
Material Adverse Effect.

        "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 Permitted Encumbrances and
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 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 Loan
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 for Alternate Base Rate
Loans in effect for that day plus 2% or (b) the Highest Lawful Rate for that
day.

        "PRELIMINARY AVAILABLE AMOUNT" shall mean (a) $125,000,000 from the date
hereof and prior to February 28, 1996; (b) $105,000,000 on and after February
28, 1996 and prior to December 31, 1996; (c) $90,000,000 on and after December
31, 1996 and prior to February 28, 1997; (d) $65,000,000 on and after February
28, 1997 and prior to February 28, 1998; (e) $30,000,000 on and after February
28, 1998 and prior to December 31, 1998; and (f) $0.00 on and after December 31,
1998.

        "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
                                      -22-

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.

        "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
Price Protection 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 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) OR (12) 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.

        "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 Proved Reserves; (c) the estimates
with respect to such Proved Reserves were

                                      -23-

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.

        "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 have the meaning ascribed to that term
in the Letter of Credit Agreement.

        "REQUEST FOR EXTENSION OF CREDIT" shall mean a request for extension of
credit duly executed by the chief executive officer, chief financial officer or
treasurer of the Company, or such other officer of the Company as its chief
financial officer shall from time to time designate in a writing delivered to
the Agent, appropriately completed and substantially in the form of EXHIBIT B.

        "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.

        "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;
                                      -24-

        (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 Ratings Group ("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

        (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 of the Company 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
                                      -25-

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" shall mean any sale, transfer, exchange, or other disposition for
value.

        "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)(12) 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 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.

                                      -26-

        "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 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
                                      -27-

proviso is violated, then such Liens shall not be "Springing Liens" for purposes
of this Agreement.

        "STATUTORY RESERVES" shall mean a fraction (expressed as a decimal), the
numerator of which is the number one and the denominator of which is the number
one minus the weighted average of the reserve percentages (including any
marginal, special, emergency, or supplemental reserves), expressed as a decimal,
actually required to be maintained by any Bank by the Board or any other
Governmental Authority to which any of the Banks is subject as required by
Regulation D during the applicable Interest Period for "eurocurrency
liabilities" (as such term is used in Regulation D) and any other reserves
actually required to be maintained by any Bank by reason of any Regulatory
Change against (1) any category of liabilities which includes deposits by
reference to which the Eurodollar Rate is to be determined as provided in the
definition of "Eurodollar Base Rate" or (2) any category of extensions of credit
or other assets which include Eurodollar Loans. Such reserve percentages shall
include, without limitation, those imposed under Regulation D. Statutory
Reserves shall be adjusted automatically on and as of the effective date of any
change in any reserve percentage. Each determination of the Statutory Reserves
by the Agent shall be conclusive and binding, absent manifest error, and may be
made using any reasonable averaging and attribution method.

        "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 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 earlier of (a) the Maturity Date and
(b) the date the Commitments are terminated pursuant to SECTION 2.2.

                                      -28-

        "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, in
each case as of such date.

        "TYPE" shall have the meaning assigned to such term in SECTION 1.3.

        "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 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).

                                      -29-

        "UNUSED COMMITMENT" shall mean, on any date, the difference of (a) the
Available Amount minus (b) the sum of (1) the aggregate outstanding principal
balance of the Notes plus (2) 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 generally accepted
accounting principles.

        (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.

        (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.
                                      -30-

        1.3. TYPES OF LOANS. Loans hereunder are distinguished by "Type". The
"Type" of a Loan refers to the determination whether such Loan is a Eurodollar
Loan or an Alternate Base Rate Loan.

        Section 2. COMMITMENTS.

        2.1. LOANS. (a) Each Bank severally agrees, subject to the terms and
conditions of this Agreement, from time to time on or after the date hereof and
prior to the Termination Date, to make Loans to the Company in an aggregate
principal amount at any one time outstanding up to but not exceeding such Bank's
Commitment. Subject to the conditions herein, any Loan repaid prior to the
Termination Date may be reborrowed prior to the Termination Date pursuant to the
terms of this Agreement; PROVIDED, that any and all Loans shall be due and
payable in full on the Maturity Date.

               (b) (1) 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 the
Most Recent Approved Assumptions, the total maximum amount of Loans and Letter
of Credit Liabilities to be available to the Company hereunder and under the
Letter of Credit Agreement without violation of any Required Ratio. Upon each
such delivery, the Company may by notice to the Co-Agents (who shall notify the
Banks) designate as the Available Amount any amount (not to exceed the
Preliminary Available Amount then in effect) 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 2.1(b). If no
amount less than (a) or (b) in this sentence is designated in accordance with
this SECTION 2.1(b), the Available Amount shall be the lesser of (a) the
Preliminary Available Amount then in effect or (b) such total maximum amount.

        (2) SECTION 2.1(b)(1) notwithstanding (but at all times subject to
SECTIONS 2.1(c), 2.2(a)(1), 2.2(a)(2), 2.2(a)(4) (except to the extent it
relates to SECTION 2.2(a)(3)), 2.2(b), 2.7 and 10), if at any time before
February 27, 1997, the application of the Most Recent Approved Assumptions and
the Most Recent Engineering Report does not produce an Aggregate Commitment of
at least the Adjusted Floor Amount, the Most Recent Approved Assumptions shall
be adjusted by the Co-Agents so as to produce an Aggregate Commitment equal to
the Adjusted Floor Amount. Such adjustment shall be determined by the Co-Agents
after consultation with the Company and shall be presented to the Banks for
approval as provided in the definition of "Approved Assumptions". Although the
particular factors included in the Most Recent Approved Assumptions which are to
be adjusted (as determined by the Co-Agents) shall be subject to approval by the
Banks, the Most Recent Approved Assumptions as adjusted pursuant to this
subsection shall in all cases produce an Aggregate Commitment equal to the
Adjusted Floor Amount. The Approved Assumptions as so adjusted shall be the Most
Recent Approved Assumptions and shall be in effect for all purposes of this
Agreement until the next determination of Approved Assumptions provided for
herein. Without limiting the generality of the foregoing, prior to February 27,
1997 compliance with Required Ratios for purposes of SECTIONS 2.2, 2.7, 7.2(e),
9.9, 10.1(d) AND 10.1(e) at the time of delivery of any Independent Engineering
Report or Coverage Report (including the Independent Engineering Report and the

                                      -31-

Coverage Report which caused the Approved Assumptions to be adjusted pursuant to
this subsection) shall be determined on the basis of the Approved Assumptions as
so adjusted.

               (c) Notwithstanding anything in this Agreement to the contrary,
(A) no Bank shall be required to make Loans at any one time outstanding in
excess of such Bank's Commitment, and (B) if a Bank fails to make a Loan as and
when required hereunder and the Company subsequently makes a repayment on the
Notes, 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 Loans, and the balance of such
repayment shall be divided among all of the Banks in accordance with their
respective Commitment Percentages.

               (d) Notwithstanding anything in this Agreement to the contrary,
no Bank shall be required to make Loans (but each Bank shall permit Rollovers)
during the existence of an Engineering Shortfall.

               (e) Upon each delivery of the financial statements required by
SECTION 9.1(b) and the Independent Engineering Report required by SECTION
9.1(g), the Company may request the Banks to extend the Termination Date then in
effect by a period not to exceed one year (but in no event later than December
31, 1999). Such request shall be made by giving its written request to the Agent
specifying the date to which the Termination Date is to be extended. The Agent,
the Co-Agents and the Banks shall consider any such request in a timely fashion
and in good faith and in light of all relevant facts and circumstances at the
time of such request, but the granting of any such extension shall be at all
times within the sole and absolute discretion of the Agent, the Co-Agents and
the Banks. The granting of any such extension would require the unanimous
consent of the Agent, the Co-Agents and the Banks and may be conditional on such
terms and conditions as the Agent, the Co-Agents and the Banks may in their
discretion propose. Failure to obtain such an extension shall not IPSO FACTO
either constitute or excuse a Default or an Event of Default.

        2.2. TERMINATIONS, REDUCTIONS AND CHANGES OF COMMITMENTS.

        (a) MANDATORY. (1) On the Termination Date, all Commitments shall be
terminated in their entirety.

               (2) In the event that the Company is required to make a
prepayment of the Loans pursuant to SECTION 3.2(b)(2), the Aggregate Commitment
for the Applicable Period then in effect shall be reduced by the amount of such
prepayment and an amount equal to such prepayment shall be deducted from the
Aggregate Commitment for each subsequent Applicable Period PRO RATA according to
their respective amounts in effect immediately prior to such reduction;
PROVIDED, that if such PRO RATA reduction does not result in compliance by the
Company with all Required Ratios, the amount of such prepayment shall be
deducted among such subsequent Applicable Periods as the Company shall direct.

                                      -32-

               (3) The Company shall from time to time reduce the aggregate
Commitments for present and future Applicable Periods to the extent necessary to
bring the Company into compliance with all Required Ratios. Any such reduction
shall be accomplished within 10 Business Days after demand therefor by the
Agent; PROVIDED, that in the case of any noncompliance with Required Ratios
resulting solely from an Engineering Shortfall, the Company shall remedy such
noncompliance, but no Event of Default shall occur until the expiration of the
cure period provided in SECTION 10.1(e).

               (4) Except where reductions in the Preliminary Available Amounts
for the Applicable Periods are made PRO RATA pursuant to SECTION 2.2(a)(2), if
at any time the Preliminary Available Amount is reduced for any future
Applicable Period pursuant to SECTION 2.2(a)(2) or SECTION 2.2(a)(3) to bring
the Company in compliance with all Required Ratios, the Preliminary Available
Amount for the Applicable Period in effect at such time and each Applicable
Period subsequent thereto and prior to such future Applicable Period shall be
reduced by a like amount.

        (b) THE COMPANY'S OPTION. The Company shall have the right to terminate
or reduce the unused portion of the Commitments for any current or future
Applicable Period at any time or from time to time; PROVIDED that (A) the
Company shall give notice of each such termination or reduction to the Agent as
provided in SECTION 5.5; (B) each such partial reduction shall be in an integral
multiple of $5,000,000, and (C) the Company may not cause the Available Amount
to be less than the aggregate principal amount of the Loans then outstanding
plus the Letter of Credit Liabilities then outstanding. No voluntary reduction
in the Available Amount prior to any scheduled reduction in the Available Amount
shall 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. Reductions in the Preliminary
Available Amount may be applied to any Applicable Period at the option of the
Company PROVIDED that after such application the Company is in compliance with
all Required Ratios.

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

        2.3. FEES. (a) 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 effectiveness of this Agreement to and including the date such Bank's
Commitment is terminated at a rate per annum equal to 3/8% of such Commitment.
The Commitment Fees shall be computed for each day and shall be based on the
unused portion of such Bank's Commitment for such day. Accrued Commitment Fees
shall be payable in arrears on the date of the initial Loans, 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.

                                      -33-

        (b) All past due fees payable pursuant to this section shall bear
interest at the Post-Default Rate. Upon receipt, the Agent shall disburse such
fees to the Banks in accordance with their Commitment Percentages.

        2.4. AFFILIATES; LENDING OFFICES.

        (a) Any Bank may, if it so elects, fulfill its Commitment as to any
Eurodollar Loan by causing a branch, foreign or otherwise, or Affiliate of such
Bank to make such Loan and may transfer and carry such Loan at, to or for the
account of any branch office or Affiliate of such Bank; PROVIDED that in such
event, for the purposes of this Agreement, such Loan shall be deemed to have
been made by such Bank and the obligation of the Company to repay such Loan
shall nevertheless be to such Bank and shall be deemed to be held by such Bank,
to the extent of such Loan, for the account of such branch or Affiliate.

        (b) Notwithstanding any provision of this Agreement to the contrary,
each Bank shall be entitled to fund and maintain its funding of all or any part
of its Loans hereunder in any manner it sees fit, it being understood, however,
that for the purposes of this Agreement all determinations hereunder shall be
made as if such Bank had actually funded and maintained each Eurodollar Loan
during each Interest Period through the purchase of deposits having a maturity
corresponding to such Interest Period and bearing an interest rate equal to the
applicable Eurodollar Base Rate for such Interest Period.

        2.5. SEVERAL OBLIGATIONS. The failure of any Bank to make any Loan to be
made by it on the date specified therefor shall not relieve any other Bank of
its obligation to make its Loan on such date, but neither the Agent nor any Bank
shall be responsible for the failure of any other Bank to make a Loan to be made
by such other Bank.

        2.6. NOTES. The Loans made by each Bank shall be evidenced by a single
Note of the Company (each, together with all renewals, extensions, modifications
and replacements thereof and substitutions therefor, a "NOTE") dated the date
hereof, payable to the order of such Bank in a principal amount equal to the
Commitment of such Bank as originally in effect and otherwise duly completed.
Each Bank is hereby authorized by the Company to endorse on the schedule (or a
continuation thereof) attached to the Note of such Bank, to the extent
applicable, the date, amount and Type of and the Interest Period for each Loan
made by such Bank to the Company hereunder, and the amount of each payment or
prepayment of principal of such Loan received by such Bank; PROVIDED that any
failure by such Bank to make any such endorsement shall not affect the
obligations of the Company under such Note, in respect of such Loan, or
hereunder.

        2.7. OPTIONAL RESERVE REPORT. 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

                                      -34-

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 (and
the Applicable Margin) 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 SECTION 2.1(b).

        2.8. USE OF PROCEEDS. The proceeds of the Loans shall be used by the
Company for working capital and for general corporate purposes and may not be
utilized (a) to pay dividends other than usual dividends in the ordinary course
of business or (b) for the buyout or acquisition of any Person unless the board
of directors of such Person has first approved such buyout or acquisition.

        Section 3. BORROWINGS, PREPAYMENTS AND SELECTION OF INTEREST RATES.

        3.1. BORROWINGS. The Company shall give the Agent notice of each
borrowing to be made hereunder as provided in SECTION 5.5. Each borrowing shall
be in an amount of $1,000,000 or any integral multiple thereof. Not later than
1:00 p.m. on the date specified for each such borrowing hereunder, each Bank
shall make available the amount of the Loan, if any, to be made by it on such
date to the Agent, at its Principal Office, in immediately available funds, for
the account of the Company. The amount so received by the Agent shall, subject
to the terms and conditions of this Agreement, be made available to the Company
by depositing the same, in immediately available funds, in an account designated
by the Company and maintained with the Agent at its Principal Office.

        3.2. PREPAYMENTS.

        (a) OPTIONAL PREPAYMENTS. Except as provided in SECTIONS 3, 4.2(c), 5
and 6, the Company shall have the right to prepay, on any Business Day, in whole
or in part, without the payment of any penalty or fee, Loans at any time or from
time to time; PROVIDED that the Company shall give the Agent notice of each such
prepayment as provided in SECTION 5.5. Eurodollar Loans may be prepaid on the
last day of an Interest Period applicable thereto. Eurodollar Loans may not be
otherwise prepaid unless prepayment is accompanied by payment of all
compensation required by SECTION 6.5.

        (b) MANDATORY PREPAYMENTS. (1) The Company shall from time to time on
demand by the Agent prepay the Loans or reduce Letter of Credit Liabilities in
such amounts as shall be necessary (A) so that at all times the aggregate
outstanding principal amount of the Loans and Letter of Credit Liabilities shall
not be in excess of the lesser of the Available Amount and the Aggregate
Commitment, or (B) subject to SECTION 2.1(b)(2), to comply with SECTION 9.9. Any
such payment shall be allocated between Loans and 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.

                                      -35-

               (2) Concurrently with any sale of any Proved Reserves which would
cause the aggregate amount of such sales since the effective date of the last
calculation of compliance with the Required Ratios to exceed $20,000,000 in the
aggregate, each of the Annual Debt Service Coverage Ratio and the Alternate
Annual Debt Service Coverage Ratio shall be redetermined for the Calculation
Period in which such sales occur and for each Calculation Period thereafter to
and including December 31, 1998 and the SLOR Coverage Ratio and the TLOR
Coverage Ratio shall be redetermined, in each case to the effective date of the
sale on the basis of the Most Recent Approved Assumptions and the Most Recent
Engineering Report and the most recent Coverage Report delivered pursuant to
SECTION 9.1. In making such redeterminations, (a) the Proved Reserves described
in the Most Recent Engineering Report which are no longer owned by members of
the Combined Group (the "SOLD PROPERTIES") shall be identified; (b) there shall
be determined the gross and net volumes of Hydrocarbons projected in the Most
Recent Engineering Report to be produced from the Petroleum Properties
(including the Sold Properties) minus the gross and net volumes of Hydrocarbons
projected in the Most Recent Engineering Report to be produced from the Sold
Properties; (c) there shall be determined by calendar years the Net Oil and Gas
Income shown in the Most Recent Engineering Report as attributable to the
Petroleum Properties (including the Sold Properties) of members of the Combined
Group minus the Net Oil and Gas Income shown in the Most Recent Engineering
Report as attributable to the Sold Properties; and (d) the discount rate and
other factors set forth in the Most Recent Approved Assumptions shall be used.
If the Company upon any such redetermination shall not be in compliance with all
Required Ratios, the Company shall prepay on the Business Day following the date
of such sale an amount of the proceeds of all sales not previously prepaid for
application to the unpaid principal balance of the Notes. The Company may in its
discretion defer making the prepayments required by the preceding sentence until
the earlier of (a) the time the aggregate amount of such prepayments so deferred
equals or exceeds $1,000,000 or (b) one month after the date the first such
prepayment would otherwise be due.

               (3) The Company shall maintain records of all sales of Proved
Reserves and shall otherwise maintain books and records which enable it to
comply, and to demonstrate to the Agent on request compliance, with the
obligations of the Company in this SECTION 3.2(b).

        3.3. SELECTION OF INTEREST RATES. Subject to SECTIONS 5, 6 and 12.8, the
Company shall have the right, by giving written notice to the Agent as provided
in SECTION 5.5, either to convert any Loan (in whole or in part) into a Loan of
another Type or to continue such Loan (in whole or in part) as a Loan of the
same Type. Any such notice of conversion of a Loan into, or continuation of a
Loan as, a Eurodollar Loan shall specify the new Interest Period. In the event
the Company fails to so give such notice prior to the end of any Interest Period
for any Eurodollar Loan, such Loan shall become an Alternate Base Rate Loan on
the last day of such Interest Period. No more than 10 Eurodollar Interest
Periods shall be in effect at any time. Except as otherwise provided herein,
each designation of an interest rate shall apply to all Notes ratably in
accordance with their respective outstanding principal balances. If any Bank
assigns an interest in its Note when any Eurodollar Loan is outstanding with
respect thereto, the assignee shall have its ratable interest in such Eurodollar
Loan.
                                      -36-

        Section 4. PAYMENTS OF PRINCIPAL AND INTEREST.

        4.1. REPAYMENT OF LOANS. (a) The Company will pay to the Agent for the
account of each Bank the principal of each Loan made by such Bank on the dates
provided in the respective Notes and herein and 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
(other than any Default resulting solely from the nonpayment of such
Reimbursement Obligation) have been satisfied, be paid with the proceeds of
Loans.

        (b) Subject to SECTIONS 3.2 and 10.1, the Company shall pay the
outstanding principal amount of all Loans on the Maturity Date.

        4.2. INTEREST. (a) 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 Loan made by such Bank for the period commencing on the date of such Loan
to but excluding the date such Loan shall be paid in full, at the lesser of (1)
the following rates per annum:

        (A) if such Loan is an Alternate Base Rate Loan, the Alternate Base Rate
PLUS the Applicable Margin for Alternate Base Rate Loans; or

        (B) if such Loan is a Eurodollar Loan, the applicable Eurodollar Rate
PLUS the Applicable Margin for Eurodollar Loans; or

(2) the Highest Lawful Rate.

        (b) Notwithstanding any of the foregoing but subject to SECTION 12.8,
the Company will pay to the Agent for the account of each Bank interest at the
applicable Post-Default Rate on any principal of any Loan made by such Bank and
on any other amount payable by the Company hereunder to or for the account of
such Bank (but, if such amount is interest, only to the extent legally
enforceable), which shall not be paid in full when due (whether at stated
maturity, by acceleration or otherwise), for the period commencing on the due
date thereof through and including the date the same is paid in full.

        (c) Accrued interest shall be due and payable on the applicable Interest
Payment Dates, except that (1) accrued interest payable at the Post-Default Rate
shall be due and payable from time to time on demand of the Agent or the
Required Banks (through the Agent), (2) accrued interest on any amount converted
from one Type of Loan to another Type of Loan shall be paid on the amount so
converted at the time of such conversion, and (3) accrued interest on any
Eurodollar Loan paid or prepaid shall be due at the time of such payment or
prepayment.

        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 Loans and other amounts to be made
by the Company hereunder
                                      -37-

and under the Notes 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).

        (b) The Company shall, at the time of making each payment hereunder or
under any Note, specify to the Agent the Loans or other amounts payable by the
Company hereunder or thereunder 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 Loans or other amounts then due and payable);
PROVIDED that if no Loans 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 or under any Note 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 or under any Note falls on
a day which is not a Business Day, the due date for such payment (subject to the
definition of Interest Period) 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 borrowing from the Banks hereunder, each payment of Commitment Fees and
other fees and each termination or reduction of the Commitments of the Banks
under SECTION 2.2 shall be made PRO RATA according to the Banks' respective
Commitments, and (b) each payment by the Company of principal of or interest on
Loans of a particular Type shall be made to the Agent for the account of the
Banks PRO RATA in accordance with the respective unpaid principal amounts of
such Loans held by the Banks (subject to SECTION 6.4).

        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. Except for prepayments made pursuant
to SECTION 3.2(b), each borrowing and repayment of principal of Loans, each
optional prepayment and each conversion of Type shall be in an aggregate
principal amount equal to $1,000,000, or an integral multiple thereof
(borrowings or prepayments of Loans of different Types or, in the case of
Eurodollar Loans, having different Interest Periods at the same time hereunder,
to be
                                      -38-

deemed separate borrowings and prepayments for purposes of the foregoing, one
for each Type or Interest Period), and each termination or reduction of
Commitments shall be in an aggregate principal amount equal to $5,000,000 or an
integral multiple thereof. Upon any mandatory prepayment that would reduce
Eurodollar Loans having the same Interest Period to less than $1,000,000, such
Loans shall automatically be converted into Alternate Base Rate Loans.

        5.5. CERTAIN ACTIONS, NOTICES, ETC. Notices to the Agent of any
termination or reduction of Commitments, prepayments of Loans and of the
duration of Interest Periods and Requests for Extension 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
termination, reduction, borrowing and/or prepayment specified below:

                                                     NUMBER OF BUSINESS
                                                         DAYS PRIOR
                                                           NOTICE
                                                     ------------------
      Termination or reduction
        of Commitments...............................       10

      Borrowing or prepayment
        of or conversion into
        Alternate Base Rate Loans....................    same day

      Borrowing or prepayment
        of or conversion into or
        continuance of Eurodollar
        Loans........................................        3

      Prepayments required
        pursuant to SECTION 3.2......................        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 or
Request for Extension of Credit shall specify the amount and Type of the Loans
to be borrowed or prepaid (subject to SECTIONS 3.2(a) and 5.4), the date of
borrowing or prepayment (which shall be a Business Day) and, in the case of
Eurodollar Loans, the duration of the Interest Period therefor (subject to the
definition of Interest Period). Any such notice of conversion of a Loan into a
Loan of another Type shall identify such Loan (or portion thereof) being
converted and specify the Type of Loan into which such Loan is being converted
(subject to SECTION 5.4) and the date for conversion (which shall be a Business
Day) and, unless such Loan is being converted into an Alternate Base Rate Loan,
the duration (subject to the definition of Interest Period) of the Interest
Period therefor which is to commence as of the last day of the then current
Interest Period therefor (or the date of conversion, if such Loan is being
converted from an Alternate Base Rate Loan). Each such notice of continuation of
a Loan (or portion thereof) as the same Type of Loan shall identify such Loan
(or portion thereof) being continued (subject to SECTION 5.4) and the duration

                                      -39-

(subject to the definition of Interest Period) of the Interest Period therefor
which is to commence as of the last day of the then current Interest Period
therefor. The Agent shall promptly notify the Banks of the contents of each such
notice or Request for Extension of Credit. 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 the proceeds of a Loan to be made by it hereunder 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 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 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 participations in the Loans made 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 respective amounts 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 Person so
purchasing a participation in the Loans made or other obligations held by other
Banks may exercise all rights of set-off, bankers' lien, counterclaim or similar
rights with respect to such participation as fully as if such Bank were a direct
holder of Loans 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
                                      -40-

Bank to exercise, and retain the benefits of exercising, any such right with
respect to any other indebtedness or obligation of the Company.

        Section 6. YIELD PROTECTION AND ILLEGALITY.

        6.1. ADDITIONAL COSTS.

        (a) Subject to SECTION 12.8, the Company shall pay to the Agent, on
demand for the account of such Bank, from time to time such amounts as any Bank
may reasonably determine to be necessary to compensate it for any costs incurred
by such Bank which such Bank reasonably determines are attributable to its
making or maintaining of any Eurodollar Loan hereunder or its obligation to make
or maintain any such Loan hereunder, or any reduction in any amount receivable
by such Bank hereunder in respect of any of such Loans or such obligation (such
increases in costs and reductions in amounts receivable being herein called
"ADDITIONAL COSTS"), in each case resulting from any Regulatory Change which:

               (1) subjects such Bank (or makes it apparent that such Bank is
subject) to any tax (including any United States interest equalization tax),
levy, impost, duty, charge or fee (collectively, "TAXES"), or any deduction or
withholding for any Taxes on or from the payment due under any Eurodollar Loan
or other amounts due hereunder, other than income and franchise taxes of the
jurisdiction (or any subdivision thereof) in which such Bank has an office or
its Applicable Lending Office; or

               (2) changes the basis of taxation of any amounts payable to such
Bank under this Agreement or its Note in respect of any of such Loans, other
than changes which affect taxes measured by or imposed on the overall net income
or franchise taxes of such Bank or of its Applicable Lending Office for any of
such Loans by the jurisdiction (or any subdivision thereof) in which such Bank
has an office or such Applicable Lending Office; or

               (3) imposes or modifies or increases or deems applicable any
reserve, special deposit or similar requirement (including any such requirement
imposed by the Board) relating to any extensions of credit or other assets of,
or any deposits with or other liabilities of, such Bank or loans made by such
Bank, or against any other funds, obligations or other property owned or held by
such Bank; or

               (4) imposes any other condition affecting this Agreement (or any
of such extensions of credit or liabilities).

Each Bank will notify the Company through the Agent of any event occurring after
the date of this Agreement which will entitle such Bank to compensation pursuant
to this section as promptly as practicable after it obtains knowledge thereof
and determines to request such compensation, and (if so requested by the Company
through the Agent) will designate a different available Applicable Lending
Office for the Eurodollar Loans of such Bank or take such other action as the
Company may reasonably request if such designation or action is consistent with
the internal policy of such Bank and legal and regulatory restrictions, can be
undertaken at no additional
                                      -41-

cost, will avoid the need for, or reduce the amount of, such compensation and
will not, in the sole opinion of such Bank, be disadvantageous to such Bank
(PROVIDED that such Bank shall have no obligation so to designate an Applicable
Lending Office located in the United States of America). Each Bank will furnish
the Company with a statement setting forth the basis and amount of each request
by such Bank for compensation under this section, with each such statement to
cover amounts accruing under this section with respect to a period beginning not
earlier than 120 days from the date thereof and using any reasonable averaging
and attribution methods.

        (b) Without limiting the effect of the foregoing provisions of this
section, in the event that, by reason of any Regulatory Change, any Bank either
(1) incurs Additional Costs based on or measured by the excess above a specified
level of the amount of a category of deposits or other liabilities of such Bank
which includes deposits by reference to which the interest rate on Eurodollar
Loans is determined as provided in this Agreement or a category of extensions of
credit or other assets of such Bank which includes Eurodollar Loans or (2)
becomes subject to restrictions on the amount of such a category of liabilities
or assets which it may hold, then, if such Bank so elects by notice to the
Company (with a copy to the Agent), the obligation of such Bank to make
Eurodollar Loans hereunder shall be suspended until the date such Regulatory
Change ceases to be in effect (in which case the provisions of SECTION 6.4 shall
be applicable).

        (c) Determinations and allocations by any Bank for purposes of this
section of the effect of any Regulatory Change on its costs of maintaining its
obligations to make Loans or of making or maintaining Loans or on amounts
receivable by it in respect of Loans, and of the additional amounts required to
compensate such Bank in respect of any Additional Costs, shall be conclusive,
absent manifest error, and may be prepared using any reasonable averaging and
attribution methods.

        (d) 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 purchase and assume the Commitment, Loans, Note and Letter of
Credit Liabilities of such Bank. Each Bank requesting compensation pursuant to
this SECTION 6.1 agrees to sell its Commitment, Loans, Note, Letter of Credit
Liabilities and interests in this Agreement and in the Letter of 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 Loans, Note and Letter of Credit Liabilities 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 Letter of Credit Agreement
calculated, in each case, to the date such Commitment, Loans, Note, Letter of
Credit Liabilities and interests are purchased, whereupon such Bank shall have
no further Commitment or other obligation to the Company hereunder or under any
Note or under the Letter of Credit Agreement but shall be entitled to the
benefit of this Agreement for matters occurring during the time it was a Bank
under this Agreement.
                                      -42-

        6.2. LIMITATION ON TYPES OF LOANS. Anything herein to the contrary
notwithstanding, if, with respect to any Eurodollar Loans:

        (a) the Agent determines (which determination shall be conclusive absent
manifest error) that quotations of interest rates for the relevant deposits
referred to in the definition of "Eurodollar Base Rate" in SECTION 1.1 are not
being provided in the relevant amounts or for the relevant maturities for
purposes of determining the rate of interest for such Loans for Interest Periods
therefor as provided in this Agreement; or

        (b) the Required Banks determine (which determination shall be
conclusive absent manifest error) and notify the Agent that the relevant rates
of interest referred to in the definition of "Eurodollar Base Rate" in SECTION
1.1 upon the basis of which the rates of interest for such Loans are to be
determined do not accurately reflect the cost to such Banks of making or
maintaining such Loans for any proposed Interest Periods therefor; or

        (c) the Agent determines (which determination shall be conclusive absent
manifest error) that by reason of circumstances affecting the Eurodollar
interbank market generally, deposits in dollars in the relevant Eurodollar
interbank market are not being offered for the applicable Interest Period and in
an amount equal to the amount of the Eurodollar Loan requested by the Company;

then the Agent shall promptly notify the Company and each Bank thereof, and, so
long as such condition remains in effect, the Banks shall be under no obligation
to make Eurodollar Loans (but shall maintain until the end of the Interest
Period then in effect the Eurodollar Loans then outstanding).

        6.3. ILLEGALITY. Notwithstanding any other provision of this Agreement
to the contrary, if by reason of (x) the adoption of any applicable Legal
Requirement or any change in any applicable Legal Requirement or in the
interpretation or administration thereof by any Governmental Authority or
compliance by any Bank with any request or directive (whether or not having the
force of law) of any central bank or other Governmental Authority or (y)
circumstances affecting the relevant Eurodollar interbank market or the position
of a Bank therein, it shall at any time be unlawful or impracticable in the sole
discretion of a Bank for such Bank or its Applicable Lending Office to (a) honor
its obligation to permit the establishment of Eurodollar Loans hereunder or (b)
maintain Eurodollar Loans hereunder, then such Bank through the Agent shall
promptly notify the Company thereof and the obligation of such Bank to establish
or maintain Eurodollar Loans hereunder shall be suspended until such time as
such Bank may again establish and maintain Eurodollar Loans, in which case the
provisions of SECTION 6.4 shall be applicable. Before giving such notice
pursuant to this section, such Bank will designate a different available
Applicable Lending Office for the Eurodollar Loans of such Bank or take such
other action as the Company may reasonably request if such designation or action
is consistent with the internal policy of such Bank and legal and regulatory
restrictions, can be undertaken at no additional cost, will avoid the need to
suspend such Bank's obligation to make Eurodollar Loans hereunder and will not,
in the sole opinion of such Bank, be disadvantageous to such Bank (PROVIDED that
such Bank shall have no obligation so to designate an Applicable Lending

                                      -43-

Office located in the United States of America). In the event any Bank shall
seek to invoke the benefits of this section, 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 purchase and assume the
Commitment, Loans, Note and Letter of Credit Liabilities of such Bank. Each Bank
requesting to invoke the benefits of this SECTION 6.3 agrees to sell its
Commitment, Loans, Note, Letter of Credit Liabilities and interests in this
Agreement and in the Letter of 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 Loans, Note and
Letter of Credit Liabilities plus all other fees and amounts owing to such Bank
hereunder and under the Letter of Credit Agreement calculated, in each case, to
the date such Commitment, Loans, Note, Letter of Credit Liabilities and
interests are purchased, whereupon such Bank shall have no further Commitment or
other obligation to the Company hereunder or under any Note or under the Letter
of Credit Agreement but shall be entitled to the benefit of this Agreement for
matters occurring during the time it was a Bank under this Agreement.

        6.4. SUBSTITUTE ALTERNATE BASE RATE LOANS. If the obligation of any Bank
to make or maintain Eurodollar Loans shall be suspended pursuant to SECTION 6.1,
6.2 or 6.3, all Loans which would otherwise be made by such Bank as Eurodollar
Loans shall be made instead as Alternate Base Rate Loans (and, if an event
referred to in SECTION 6.1(b) or 6.3 has occurred and such Bank so requests by
notice to the Company with a copy to the Agent, each Eurodollar Loan of such
Bank then outstanding shall be automatically converted into an Alternate Base
Rate Loan on the date specified by such Bank in such notice) and, to the extent
that such Loans are so made as (or converted into) Alternate Base Rate Loans,
all payments of principal which would otherwise be applied to such Loans shall
be applied instead to such Alternate Base Rate Loans.

        6.5. COMPENSATION. Subject to SECTION 12.8, the Company shall pay to the
Agent for the account of each Bank, within two Business Days after demand
therefor by such Bank through the Agent, such amount or amounts as shall be
sufficient (in the reasonable opinion of such Bank) to compensate it for any
loss, cost or expense incurred by it as a result of:

        (a) any payment, prepayment or conversion of a Eurodollar Loan made by
such Bank on a date other than the last day of an Interest Period for such Loan;
or

        (b) any failure by the Company to borrow a Eurodollar Loan to be made by
such Bank on the date for such borrowing specified in the relevant notice of
borrowing under SECTION 5.5 or to convert an Alternate Base Rate Loan into a
Eurodollar Loan on such date after giving notice of such conversion or to
continue a Eurodollar Loan after giving notice of such continuance; or

        (c) any cessation of the Eurodollar Rate to apply to any Loan or any
part thereof;

such compensation to include, without limitation, an amount equal to the excess,
if any, as reasonably determined by each Bank, of (1) its cost of obtaining the
funds for the Loan being paid, prepaid or converted or not borrowed, converted
or continued (assumed to be the
                                      -44-

applicable Eurodollar Base Rate) for the period from the date of such payment,
prepayment or conversion or failure to borrow, convert or continue to the last
day of the Interest Period for such Loan (or, in the case of a failure to
borrow, convert or continue the Interest Period for such Loan which would have
commenced on the date of such failure to borrow, convert or continue) over (2)
the amount of interest (as reasonably determined by such Bank) that would be
realized by such Bank in reemploying the funds so paid, prepaid or converted or
not borrowed, converted or continued for such period or Interest Period, as the
case may be. Each determination of the amount of such compensation by a Bank
shall be conclusive and binding, absent manifest error, and may be computed
using any reasonable averaging and attribution method.

        6.6. 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 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 Note held by it 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 or holding company 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 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,
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 purchase and assume the Commitment, Loans, Note and Letter of Credit
Liabilities of such Bank. Each Bank requesting compensation pursuant to this
section agrees to sell its Commitment, Loans, Note, Letter of Credit Liabilities
and interests in this Agreement and in the Letter of 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 Loans, Note and
Letter of Credit Liabilities plus all other fees and amounts (including any
compensation claimed by such Bank under this section owing to such Bank
hereunder and under the Letter of Credit Agreement calculated, in each case, to
the date such Commitment, Loans, Note, Letter

                                      -45-

of Credit Liabilities and interests are purchased, whereupon such Bank shall
have no further Commitment or other obligation to the Company hereunder or under
any Note or the Letter of Credit Agreement but shall be entitled to the benefit
of this Agreement for matters occurring during the time it was a Bank under this
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 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
Loan 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
Loan. The Agent and each Bank may conclusively rely on such certificates until
they receive notice in writing from the Company to the contrary.

        (c) NOTES. The Agent shall have received the appropriate Note of the
Company for each Bank, duly completed and executed.

        (d) 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. Each such Credit Document shall be in substantially the
form furnished to the Banks prior to their execution of this Agreement, together
with such changes therein as the Agent and the Banks may approve. The Company
shall have paid to the Agent any fees and expenses 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 of David L. Hicks, counsel to the
Company, substantially in the forms of SCHEDULES VI and VII, 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

                                      -46-

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 the Loans or the execution, delivery and
performance of the Credit Documents have been received and remain in full force
and effect.

        (h) LETTER OF CREDIT AGREEMENT. The Letter of Credit Agreement shall
have been executed and delivered by all parties thereto and shall be in full
force and effect.

        (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 LOANS. The obligation of each Bank to make any Loan (including
its initial Loan) to be made by it hereunder is subject to the additional
conditions precedent that, as of the date of such Loan, and after giving effect
thereto:

        (a) no Default shall have occurred and be continuing (PROVIDED, that a
Default resulting solely from an Engineering Shortfall shall not bar a
Rollover), and no "Default", as that term is defined in the Letter of Credit
Agreement, shall have occurred and be continuing under the Letter of Credit
Agreement;

        (b) if the Loan is not a Rollover, there has been no Material Adverse
Change since December 31, 1994;

        (c) if the Loan is not a Rollover, all 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 making of such Loan, with the same force and effect
as if made on and as of such date; if the Loan is a Rollover, all
representations and warranties made in each Credit Document (other than and
except for the representations and warranties set forth in SECTIONS 8.2(a)(2),
8.2(b), 8.3, 8.8 and 8.13) shall be true and correct in all material respects on
and as of the date of the making of such Loan, with the same force and effect as
if made on and as of such date;

        (d) except for Loans on the date hereof, the Company shall have
delivered to the Agent a Request for Extension of Credit within the time
specified in SECTION 5.5;

        (e) if such Loan is not a Rollover and after giving effect to such Loan
and the Loans of the other Banks to be made contemporaneously therewith, the
Company shall be in compliance with all Required Ratios and no Engineering
Shortfall shall exist; and
                                      -47-

        (f) the making of such Loan shall not be prohibited by, or subject any
Bank to any penalty under, any Legal Requirement applicable to any Bank.

        Each Request for Extension of Credit by the Company hereunder shall
include a representation and warranty by the Company to the effect set forth in
SUBSECTIONS (a) through (e) (if applicable) of this section (both as of the date
of such notice and, unless the Company otherwise notifies the Agent prior to the
date of such borrowing, as of the date of such borrowing). Except in the case of
Loans on the date hereof, such representation and warranty shall be accompanied
by a certificate of the President or chief financial officer of the Company
setting forth in reasonable detail the calculations of the Company in making
such representation and warranty.

        Section 8. REPRESENTATIONS AND WARRANTIES. To induce the Agent and the
Banks to enter into this Agreement and to make the Loans, the Company represents
and warrants (such representations and warranties to survive any investigation
and the making of the Loans) to the Banks and the Agent as follows:

        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) (1) 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,
1994), 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.

               (2) 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

                                      -48-

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 Letter of Credit Agreement.

        (b) Since December 31, 1994, 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), 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 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 and consummate the transactions contemplated therein. The execution,
delivery and performance of the Credit Documents by the Company and the
consummation by the Company of the transactions contemplated therein 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
                                      -49-

execution, delivery or performance of any Credit Document or the consummation by
the Company of the transactions contemplated therein or for the validity or
enforceability thereof have been obtained by the Company and are in full force
and effect.

        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
part of the proceeds of any extension 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
regards 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
defined in the Public Utility Holding Company Act of 1935, as amended.

                                      -50-

        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 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.

        8.14. TITLE. (a) The Company has good and defensible title to the oil,
gas and mineral properties included in the Most Recent Engineering Report
furnished to the Banks.

        (b) Such properties and facilities are free and clear of all Liens,
except Permitted Encumbrances and other Liens permitted hereby.

        (c) All oil, gas and mineral leases and leasehold estates, gas purchase
and sales contracts, and other agreements comprising or relating to any of such
properties are valid and subsisting and in full force and effect, except for
those leases, estates, contracts, easements, rights-of-way and agreements which
are in the aggregate not material to oil, gas and mineral properties included in
the Most Recent Engineering Report furnished to the Banks, taken as a whole.

        (d) All rights, permits, easements, servitudes and rights-of-way,
failure to have or maintain which would materially interfere with the
development, maintenance and operation of such properties so as to cause a
Material Adverse Change, have been obtained by the Company and are in full force
and effect.
                                      -51-

        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 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 as of the end of and 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;
                                      -52-

        (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 cause 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 cause 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 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

                                      -53-

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 (and in the case of
each Coverage Report accompanying a Required Reserve Report or an Optional
Reserve Report, calculating the SLOR Coverage Ratio, the TLOR Coverage Ratio and
the Annual Debt Service Coverage Ratio for purposes of and as provided in
SECTION 2.7), 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),
(c), (d), (e), (f), (g), (h) or (i) or SECTION 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.
                                      -54-

        (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 CLAUSE
(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 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 if the Company or the applicable 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.

                                      -55-

        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 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
                                      -56-

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 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
                                      -57-

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 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
                                      -58-

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 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 1, 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 Subsidiary 
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) any Lien renewing or extending any Lien permitted by CLAUSES
(4), (5), (6), (7), (8), (9) or (10) above; PROVIDED that the principal amount
of the Debt secured thereby is not increased and such Lien is not extended to
other property; and
                                      -59-

               (12) other Liens on any property of the Company or a Restricted
Subsidiary securing any Funded Debt of the Company or a Restricted 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 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)
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

                                      -60-

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
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
                                      -61-

(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 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)(12) 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 Letter of 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

                                      -62-

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 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)(12), or (ii) the
prepayment of an aggregate principal amount of all Obligations in accordance
with this Agreement and the Letter of Credit Agreement, or the payment of an
aggregate principal amount of other Funded

                                      -63-

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 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 transferee corporation had originally executed the
Credit Documents in
                                      -64-

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 such Bank's Note for another Note
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
Note surrendered for such exchange and of like unpaid principal amount, and that
each Note 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 maker of the
Notes 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)(12); (B) the prepayment in accordance with
this Agreement of any aggregate principal amount of all the Obligations (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

                                      -65-

under any such Sale and Leaseback Transaction, its lease obligations thereunder
shall be subordinated to the Funded Debt represented by the Notes 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 3.2(b))
of principal of or interest on the Notes.

        (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 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 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)).

                                      -66-

        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 Loan 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 drafts 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 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

        (e) the Company shall deliver any Independent Engineering Report and
related Coverage Report to the Banks in accordance with SECTION 9.1 or SECTION
2.7 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
                                      -67-

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 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

                                      -68-

        (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

        (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, that 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 Letter
of Credit Agreement,

THEREUPON: (I) the Agent may (and, if directed by the Required Banks, shall) 
do any or all of the following: (a) declare the Commitments terminated
(whereupon the Commitments shall
                                      -69-

be terminated); and (b) declare the principal amount then outstanding of and the
accrued interest on the Loans and all fees and all other amounts payable
hereunder and under the Notes 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
Loans and fees and all other amounts payable hereunder and under the Notes 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 formalities 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
with such powers as are specifically delegated to the Agent by the terms
thereof, together with such other powers as are reasonably incidental thereto.
The Agent (which term as used in this section 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 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 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.

        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

                                      -70-

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 Loans or of Commitment Fee) 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 and Loans, 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 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 CONTEMPLATED THEREBY (INCLUDING THE

                                      -71-

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-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

                                      -72-

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 and the Banks. 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 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 Loan is ever made, 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) and the making of the Loans 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 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; (d) all costs, expenses, taxes, assessments and other
charges incurred in connection with any filing or registration contemplated by
any Credit Document or any document referred to therein; and (e) reasonable
expenses of due diligence and syndication, and mutually agreed advertising and
marketing costs.
                                      -73-

        12.4. INDEMNIFICATION. THE COMPANY SHALL INDEMNIFY THE AGENT, 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,
LIABILITIES, COSTS, EXPENSES, CLAIMS AND DAMAGES ARISING FROM THE NEGLIGENCE OF
THE AGENT OR THE CO-AGENTS OR THE BANKS OR ANY OTHER INDEMNITEE, 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 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, WITHOUT LIMITATION, 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, WITHOUT LIMITATION, APPLICABLE ENVIRONMENTAL LAWS
PERTAINING TO THE CONDITION OF SUCH ASSETS, (E) ENVIRONMENTAL CLAIMS OR (F) ANY
INVESTIGATION, LITIGATION OR OTHER PROCEEDING (INCLUDING ANY THREATENED
INVESTIGATION OR PROCEEDING) RELATING TO ANY OF THE FOREGOING, and the Company
shall reimburse the Agent, each 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 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 without giving effect to
the first clause of this sentence. Nothing in this section is intended to limit
the obligations of the Company under any other provision of this Agreement.

                                      -74-

        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; 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 Loan, or any 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 Loan, or any 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 any of the Loans, or the number of
Banks which shall be required for the Banks or any of them to take any action
under this Agreement; or (e) change any provision contained in SECTIONS 2.2,
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
any Loan, or all or part of its Note or 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-Agents 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 Note
held by such selling Bank); (2) such Bank shall retain the sole right and
responsibility to enforce the obligations of the Company relating to the Loans,
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 Loans 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 Loans if such Bank has previously given notice of such participation
to the Company.

        (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 Loans
at the time owing to it and the Note held by it); PROVIDED (1) other than in the
case of an assignment to a Person at least 50% owned by the

                                      -75-

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
Loans 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 $10,000,000 (or $1,000,000 in the case
of an assignment between Banks) (except for certain exceptions approved by the
Company and the Agent or where all of a Bank's Commitment and Loans are being
assigned) and shall be in an amount that is an integral multiple of $1,000,000
(except for certain exceptions approved by the Company and the Agent or where
all of a Bank's Commitment and Loans are being assigned); (3) the assigning Bank
shall contemporaneously assign to such assignee Bank or Eligible Assignee an
equal percentage of the assigning Bank's Letter of Credit Commitment and all of
the assigning Bank's other rights and obligations under the Letter of 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 Note 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, 6.3 or 6.6, 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) but shall be entitled to the benefit of this
Agreement for matters occurring during the time it was a Bank under this
Agreement.

        (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 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
                                      -76-

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 Loans 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 Note 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. Contemporaneously with the receipt by
the Agent of an Assignment Agreement, the Company, at its own expense, shall
execute and deliver to the Agent in exchange for each surrendered Note a new
Note payable to the order of such assignee in an amount equal to the Commitment
and/or Loans assumed by it pursuant to such Assignment Agreement and, if the
assignor Bank has retained any Commitment and/or Loans hereunder, a new Note
payable to the order of the assignor Bank in an amount equal to the Commitment
and/or Loans retained by it. Such new Notes shall be in an aggregate principal
amount equal to the principal amount of each surrendered Note, shall be dated
the effective date of such Assignment Agreement and shall otherwise be in
substantially the form of the surrendered Note. Thereafter, the surrendered Note
shall be marked cancelled and returned 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.

        (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.

                                      -77-

        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 Notes, (b) the termination
of all Commitments and (c) 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 Loan 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, 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 the Loans 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 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 the Loans 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
                                      -78-

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 any of the Notes 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 cancelled 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.

        12.11. GOVERNING LAW. 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 Loan, nor shall
any Credit

                                      -79-

Document be governed by or be subject to the provisions of such Chapter 15 in
any manner whatsoever.

        12.14 1994 AGREEMENT TERMINATED. By their execution and delivery hereof,
the parties terminate the 1994 Agreement (except for the portions thereof which
are stated therein to survive the termination thereof). Each Bank instructs the
Agent to execute releases and terminations of the Security Documents (as defined
in the 1994 Agreement) and the public filings with respect thereto.

                                      -80-

        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:   R. GRAHAM WHALING
                                           ------------------------------
                                           R. Graham Whaling
                                           Senior Vice President and
                                             Chief Financial Officer

                                           Address for Notices:

                                           Santa Fe Energy Resources, Inc.
                                           1616 South Voss, Suite 1000
                                           Houston, Texas 77057
                                           Telecopy: (713) 547-5408
                                           Attention: Senior Vice President
                                             and Chief Financial Officer

                                           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
                                           Managing Director

                                           Address for Notices:

Domestic and Eurodollar                    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) 216-4117
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: $16,428,571.43                 Houston, Texas 77252
                                           Attention: Manager, Capital
                                             Markets Division

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

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

Domestic and Eurodollar                    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: Loa Funds                       Attention: James R. Allred
 Transfer                                  Telecopy: (713) 247-6432
Reference: Santa Fe Energy
 Resources, Inc.

COMMITMENT: $15,714,285.71

                                           ABN AMRO BANK N.V., HOUSTON AGENCY

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

Domestic and Eurodollar                    Address for Notices:
Lending Offices:
ABN AMRO New York                          ABN AMRO Bank N.V., Houston Agency
ABA #026009580                             Three Riverway, Suite 1700
                                           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: $14,285,714.29

                                           BANK OF MONTREAL

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

Domestic and Eurodollar                    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: $14,285,714.29

                                           THE BANK OF NEW YORK

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

Domestic Lending Office:                   Address for Notices:
The Bank of New York
ABA #021000018                             The Bank of New York
For Credit To: Commercial                  One Wall Street, 19th Floor
  Loan Servicing Department                New York, New York 10286
  GLA #111-556                             Attention: Renee Bijlani
Reference: Santa Fe Energy                 Telecopy: (212) 635-7923
  Resources, Inc.                          Telex: 232-060 (Answerback:BONY UR)

Eurodollar Lending Office:                 with a copy to:
The Bank of New York                       Ms. Linda Botts
ABA #021000018                             The Bank of New York
For Credit To: Eurodollar/                 One Wall Street, 19th Floor
  Cayman Funding Area                      New York, New York 10286
  LIBOR Account No.:                       Telecopy: (212) 635-7923
     803-3140-992                          Telex: 232-060 (Answerback:BONY UR)
Reference: Santa Fe Energy
  Resources, Inc.

COMMITMENT: $12,857,142.86

                                           THE BANK OF NOVA SCOTIA

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

Domestic and Eurodollar                    Address for Notices:
Lending Offices:
Bank of Nova Scotia, New                   The Bank of Nova Scotia
  York Agency                              600 Peachtree Street N.E., Suite 2700
ABA #026002532                             Atlanta, Georgia 30308
For Credit To: Atlanta                     Attention: Claude Ashby
  Agency                                   Telecopy: (404) 888-8998
Reference: Santa Fe Energy                 Telex: 00542319
  Resources, Inc.                          (Answerback: SCOTIABANK ATL)

COMMITMENT: $12,857,142.86
                                           with a copy to:
                                           The Bank of Nova Scotia
                                           1100 Louisiana, Suite 3000
                                           Houston, Texas 77002
                                           Attention: Mark Ammerman
                                           Telecopy: (713) 752-2425

                                           BANQUE PARIBAS HOUSTON AGENCY

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

Domestic and Eurodollar                    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: Barton D. Schouest
  Paribas New York                         Telecopy: (713) 659-3832
  #04202195
  Final Credit 2144-001545
  Banque Paribas Houston Agency
  Reference: Santa Fe Energy
  Resources, Inc.

COMMITMENT: $12,857,142.86

                                           CIBC INC.

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

Domestic and Eurodollar                    Address for Notices:
Lending Offices:
Morgan Guaranty Trust                      CIBC Inc.
  Company of New York                      Two Paces West
ABA #021-000-238                           2727 Paces Ferry Road, Suite 1200
For Credit To: CIBC,                       Atlanta, Georgia 30339
  New York #630-00-480                     Attention: Credit Operations
Attention: Credit Operations               Telecopy: (404) 319-4950
Reference: Santa Fe Energy                 Telex: 54-2413
  Resources, Inc.                          (Answerback: CANBANK ATL)

COMMITMENT: $12,857,142.86
                                           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

                                           THE FIRST NATIONAL BANK OF BOSTON

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

Domestic and Eurodollar                    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: $12,857,142.86

EXHIBITS:

A - Form of Note
B - Request for Extension of Credit
C - Assignment Agreement

SCHEDULES:

I    - Restricted and Unrestricted Subsidiaries
II   - Liens and Funded Debt
III  - 1995 Assumptions
IV   - Coverage Report
V    - Subordination Provisions
VI   - Opinion of Andrews & Kurth, L.L.P.
VII  - Opinion of David L. Hicks
VIII - Jurisdictions for Which Certificates Are to Be Provided


                                                                 Exhibit 10(b)
                           LETTER OF CREDIT AGREEMENT

                                     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

                           DATED AS OF APRIL 1, 1995
<PAGE>
                               TABLE OF CONTENTS

Section 1.  DEFINITIONS AND ACCOUNTING MATTERS.............................  1
         1.1     CERTAIN DEFINED TERMS.....................................  1
         1.2     ACCOUNTING TERMS AND DETERMINATIONS....................... 27

Section 2.  COMMITMENTS.................................................... 28
         2.1     LETTERS OF CREDIT......................................... 28
         2.2     AVAILABLE AMOUNT.......................................... 31
         2.3     TERMINATIONS, REDUCTIONS AND CHANGES OF COMMITMENTS....... 33
         2.4     SEVERAL OBLIGATIONS....................................... 33
         2.5     FEES...................................................... 33

Section 3.  PREPAYMENTS.................................................... 33
         3.1     (a) COMMITMENT AMOUNT..................................... 33

Section 4.  PAYMENTS OF PRINCIPAL AND INTEREST............................. 34
         4.1     REPAYMENT OF REIMBURSEMENT OBLIGATIONS.................... 34
         4.2     INTEREST.................................................. 34

Section 5.  PAYMENTS; PRO RATA TREATMENT; COMPUTATIONS, ETC................ 34
         5.1     PAYMENTS.................................................. 34
         5.2     PRO RATA TREATMENT........................................ 35
         5.3     COMPUTATIONS.............................................. 35
         5.4     MINIMUM AND MAXIMUM AMOUNTS............................... 35
         5.5     CERTAIN ACTIONS, NOTICES, ETC............................. 35
         5.6     NON-RECEIPT OF FUNDS BY THE AGENT......................... 36
         5.7     SHARING OF PAYMENTS, ETC.................................. 37
         5.8     OTHER EXPENSES............................................ 37

Section 6.  YIELD PROTECTION AND ILLEGALITY................................ 37
         6.1     ADDITIONAL COSTS IN RESPECT OF LETTERS OF CREDIT.......... 37
         6.2     CAPITAL ADEQUACY.......................................... 38

Section 7.       CONDITIONS PRECEDENT...................................... 39
         7.1     CLOSING CONDITIONS........................................ 39
         7.2     ALL LETTERS OF CREDIT..................................... 40

Section 8.  REPRESENTATIONS AND WARRANTIES................................. 41
         8.1     CORPORATE EXISTENCE....................................... 41
         8.2     INFORMATION............................................... 41
         8.3     LITIGATION; COMPLIANCE.................................... 42
         8.4     NO BREACH................................................. 42

                                      -i-

         8.5     CORPORATE ACTION.......................................... 42
         8.6     APPROVALS................................................. 42
         8.7     REGULATIONS G, U AND X.................................... 43
         8.8     ERISA..................................................... 43
         8.9     TAXES..................................................... 43
         8.10    SUBSIDIARIES.............................................. 43
         8.11    INVESTMENT COMPANY ACT.................................... 43
         8.12    PUBLIC UTILITY HOLDING COMPANY ACT........................ 43
         8.13    ENVIRONMENTAL MATTERS..................................... 44
         8.14    TITLE..................................................... 44

Section 9.  COVENANTS...................................................... 45
         9.1     FINANCIAL STATEMENTS AND CERTIFICATES..................... 45
         9.2     INSPECTION OF PROPERTY.................................... 48
         9.3     COMPLIANCE WITH ENVIRONMENTAL LAWS........................ 48
         9.4     PAYMENT OF TAXES.......................................... 48
         9.5     MAINTENANCE OF INSURANCE.................................. 48
         9.6     RESTRICTED PAYMENTS AND RESTRICTED INVESTMENTS............ 49
         9.7     LIEN, DEBT AND OTHER RESTRICTIONS......................... 50
         9.8     ISSUANCE OF STOCK BY RESTRICTED SUBSIDIARIES.............. 59
                 .......................................................... 59

Section 10.  DEFAULTS...................................................... 60
         10.1    EVENTS OF DEFAULT......................................... 60

Section 11.  THE AGENT..................................................... 63
         11.1    APPOINTMENT, POWERS AND IMMUNITIES........................ 63
         11.2    RELIANCE BY AGENT......................................... 64
         11.3    DEFAULTS.................................................. 64
         11.4    RIGHTS AS A BANK.......................................... 64
         11.5    INDEMNIFICATION........................................... 64
         11.6    NON-RELIANCE ON THE AGENT AND OTHER BANKS................. 65
         11.7    FAILURE TO ACT............................................ 65
         11.8    RESIGNATION OR REMOVAL OF THE AGENT....................... 65

Section 12.  MISCELLANEOUS................................................. 66
         12.1    WAIVER.................................................... 66
         12.2    NOTICES................................................... 66
         12.3    EXPENSES, ETC............................................. 66
         12.4    INDEMNIFICATION........................................... 67
         12.5    AMENDMENTS, ETC........................................... 68
         12.6    SUCCESSORS AND ASSIGNS.................................... 68
         12.7    SURVIVAL; TERM; REINSTATEMENT............................. 71
         12.8    LIMITATION OF INTEREST.................................... 71

                                      -ii-
         12.9    CAPTIONS.................................................. 72
         12.10   COUNTERPARTS.............................................. 72
         12.11   GOVERNING LAW............................................. 72
         12.12   SEVERABILITY.............................................. 73
         12.13   CHAPTER 15 NOT APPLICABLE................................. 73

EXHIBITS:
A - Form of Application
B - Assignment Agreement

SCHEDULES:
I    -  Restricted and Unrestricted Subsidiaries
II   -  Liens and Funded Debt
III  -  1995 Assumptions
IV   -  Coverage Report
V    -  Subordination Provisions
VI   -  Opinion of Andrews & Kurth, L.L.P.
VII  -  Opinion of David L. Hicks
VIII -  Jurisdictions for Which Certificates Are to Be Provided
IX   -  Existing Letters of Credit

                                     -iii-

<PAGE>
                          LETTER OF CREDIT AGREEMENT

      This Letter of Credit Agreement (as amended, modified, supplemented and
restated from time to time, this "AGREEMENT") dated as of April 1, 1995, 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:

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

      "ADJUSTED FLOOR AMOUNT" shall mean the lesser of (a) $50,000,000 and (b)
the Aggregate Commitment that would have been produced by the application, at
the time of the determination of the Adjusted Floor Amount, of the 1995
Assumptions and the Most Recent Engineering Report, in each case as reduced from
time to time pursuant to SECTION 2.3.

      "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
                                       1

(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 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 or the Prime Rate shall be effective on the effective date of
such change in the Fed Funds Rate or the Prime 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 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, and (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
Second Amended and Restated Revolving Credit Agreement dated as of April 1,
1995, 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
                                      -2-

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 pursuant to SECTION 9.1 and taking into account any incurrence or
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 .75% per annum.

      "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.

                                      -3-

      "APPROVED ASSUMPTIONS" shall mean:

      (a)   until the first delivery of an Independent Engineering Report
            hereunder, the 1995 Assumptions; and

      (b)   thereafter, for each Independent Engineering Report hereunder, and
            subject to SECTION 2.2(a)(2), 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.

      "AVAILABLE AMOUNT" shall mean 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(a) 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.
                                      -4-

      "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 April 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 GAAP.

      "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 Most Recent Approved
Assumptions), (e) PLUS any anticipated gain, and MINUS any anticipated loss, on
Interest Rate Protection Agreements (determined on the basis of the Most Recent
Approved Assumptions), PLUS (f) other income from operations as reasonably
projected under the Most Recent 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
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 (1) Beneficially
Own more than 50% of the aggregate voting power of all classes of Voting Stock
of the Company or (2) 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
                                      -5-

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.

      "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.

      "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 Notes, which amount shall never
exceed 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 or modified pursuant to SECTION 12.6).

      "COMMITMENT FEE" shall have the meaning ascribed to such term in
SECTION 2.5.
                                      -6-

      "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 modification and the identification
of new Banks pursuant to SECTION 12.6, and the denominator of which is
$15,000,000.

      "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 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:

                                      -7-

            (1) 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;

            (2) any reacquired shares or reacquired Debt of the Company or the
Restricted Subsidiaries;

            (3) any write-up of assets made after December 31, 1989;

            (4) 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 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

            (5) 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:

            (1) 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;

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

            (3) all other liabilities of the Company and the Restricted
Subsidiaries, including the reduction in equity attributable 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

                                      -8-

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.

      "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; (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 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

                                      -9-

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.

      "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 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(e), 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.
                                      -10-

      "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, 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 or 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, if any,
listed on SCHEDULE IX.

      "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.

      "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.

      "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.

                                      -11-

      "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.

      "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.
                                      -12-

      "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, either 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 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.

                                      -13-

      "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.

      "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. 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 the Most Recent 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.
                                      -14-

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

      "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).

      "LETTER OF CREDIT FEE" shall mean with respect to any Letter of Credit
issued pursuant hereto a fee equal to .75% 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. For Existing Letters of Credit, the Letter of Credit
Fee in effect at the time of the issuance of such Existing Letter of Credit
shall continue to apply to such Letter of Credit until such Letter of Credit is
renewed.

      "LETTER OF CREDIT LIABILITIES" shall mean, at any time and in respect of
Letters of Credit under this Agreement, the sum of (a) the aggregate amounts
then or thereafter available for drawings under such outstanding Letters of
Credit PLUS (without duplication) (b) 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.
                                      -15-

      "LOAN" shall mean a loan made pursuant to SECTION 2.1(a) of the Amended
and Restated Revolving Credit Agreement and Rollovers of such loans.

      "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 Resources Corporation 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), 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, (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 APPROVED ASSUMPTIONS" shall mean, as of any date of
determination, the Approved Assumptions most recently determined and approved
pursuant to the definition of "Approved Assumptions" on or prior to such date of
determination, if and as adjusted pursuant to SECTION 2.2(a)(2).

      "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

                                      -16-

February 9, 1995; (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 Most Recent 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.

      "1995 ASSUMPTIONS" shall mean the assumptions set forth on SCHEDULE III.

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

      "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.

      "OBLIGATIONS" shall mean, as at any date of determination thereof, the sum
of (a) the aggregate principal amount of Loans outstanding 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.

                                      -17-

      "PERMITTED ENCUMBRANCES" shall mean:

      (a)   liens for taxes, assessments or governmental charges not yet due and
            delinquent, and for taxes, assessments or governmental charges
            already due, but the validity of which is being contested by the
            Company in good faith by appropriate proceedings diligently
            conducted for which reserves have been established in accordance
            with generally accepted accounting principles;

      (b)   materialmen's, mechanics', repairmen's, employees', operators',
            landlords' and other similar liens and charges incidental to the
            conduct of the Company's business or the ownership of its Property
            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 the Property covered thereby or
            materially impair the use thereof in the operation of the Company's
            business;

      (c)   royalties, overriding royalties, net profits interests, production
            payment interests, carried interests and other burdens on production
            of a scope and nature customary in the conduct of the Company's
            business;

      (d)   defects, imperfections and irregularities in title;

      (e)   liens, security interests, charges, claims and encumbrances that
            arise under operating agreements pooling and unitization
            designations, declarations, orders and agreements and other similar
            agreements of a scope and nature customary in the oil and gas
            industry;

      (f)   the terms of operating agreements, assignments, farmout agreements,
            hydrocarbon sales, purchase, exchange and processing agreements,
            area-of mutual interest agreements, gas balancing and deferred
            production agreements, plant agreements, pipeline gathering and
            transportation agreements, injection, repressuring and recycling
            agreements, salt water or other disposal agreements, seismic or
            geophysical permits and agreements, and other contracts, division
            orders and agreements;

      (g)   the right of third parties under oil and gas leases to take
            production in kind;

      (h)   all liens, charges, claims, encumbrances, contracts and other
            matters consented to in writing from time to time by the Agent;

      (i)   all rights to consent by, required notices to, and filings with or
            other actions by governmental or tribal entities, if any, in
            connection with the change of ownership

                                      -18-

            or control of an interest in federal, state, tribal or other
            domestic governmental oil and gas leases, if the same are
            customarily obtained after such change of ownership or control, but
            only insofar as such consents, notices, filings and other actions
            are obtained within the time required under applicable Legal
            Requirements;

      (j)   required third-party consents to assignments, to the extent they
            could not reasonably be expected, individually or in the aggregate,
            to have a Material Adverse Effect;

      (k)   liabilities for royalty suspense accounts, to the extent they could
            not reasonably be expected, individually or in the aggregate, to
            have a Material Adverse Effect; and

      (l)   easements, rights-of-way and the like, incidental to the conduct of
            the Company's business or the ownership of its Property 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 the Property covered thereby or
            materially impair the use thereof in the operation of the Company's
            business;

PROVIDED, that all Permitted Encumbrances shall not in the aggregate have a
Material Adverse Effect.

      "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 Permitted Encumbrances and
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
                                      -19-

any portion 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 (a) $125,000,000 from the date
hereof and prior to February 28, 1996, (b) $105,000,000 on and after February
28, 1996 and prior to the Termination Date, and (c) $0.00 on and after the
Termination Date.

      "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.

      "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 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) OR (12) 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

                                      -20-

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.

      "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 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.

      "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.

                                      -21-

      "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.

      "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 Ratings Group ("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;
                                      -22-

      (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

      (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 of the Company 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).

      "REVOLVING COMMITMENT" shall mean each Bank's "Commitment" as such term is
defined in the Amended and Restated Revolving Credit Agreement.

      "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" shall mean any sale, transfer, exchange, or other disposition for
value.

      "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)(12) on any property or assets of the Company or any
Restricted Subsidiary.
                                      -23-

      "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 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 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
                                      -24-

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 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.
                                      -25-

      "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 2.3, or (c) March 30, 1996.

      "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, 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 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).

                                      -26-

      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 generally accepted
accounting principles.

      (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.

      (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.
                                      -27-
      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 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 Revolving Commitments less (in each case of (I) and (II)) the
aggregate unpaid principal balance of the Notes; PROVIDED, that the aggregate
Letter of Credit Liabilities at any one time outstanding together with the
aggregate principal amount of 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, 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

                                      -28-

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 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
Revolving 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.

      (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

                                      -29-

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 Revolving Commitments, by borrowing of 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 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;

                                      -30-

            (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;

            (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; PROVIDED FURTHER, that neither the Agent nor any
Bank shall have any responsibility or liability for any of the foregoing.

      (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) (1) 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 the Most Recent
Approved Assumptions, the total maximum amount of Loans and Letter of Credit
Liabilities to be available to the Company hereunder and under the Amended and
Restated Revolving Credit Agreement without violation of any Required Ratio.
Upon each such delivery, the Company may by notice to the Co-Agents (who shall
notify the Banks) designate as the Available Amount any amount (not to exceed
the Preliminary Available Amount then in effect), 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 less 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 or (b) such total maximum amount.

            (2) SECTION 2.2(a)(1) notwithstanding (but at all times subject to
SECTIONS 2.2(b) , 2.2(c), 2.2(d), 2.3 and 10), if at any time before March 30,
1996, the application of the Most Recent Approved Assumptions and the Most
Recent Engineering Report does not produce aggregate Revolving Commitments of at
least the Adjusted Floor Amount, the Most Recent Approved Assumptions shall be
adjusted by the Co-Agents so as to produce aggregate Revolving

                                      -31-

Commitments equal to the Adjusted Floor Amount. Such adjustment shall be
determined by the Co-Agents after consultation with the Company and shall be
presented to the Banks for approval as provided in the definition of "Approved
Assumptions". Although the particular factors included in the Most Recent
Approved Assumptions which are to be adjusted (as determined by the Co-Agents)
shall be subject to approval by the Banks, the Most Recent Approved Assumptions
as adjusted pursuant to this subsection shall in all cases produce an Aggregate
Commitment equal to the Adjusted Floor Amount. The Approved Assumptions as so
adjusted shall be the Most Recent Approved Assumptions and shall be in effect
for all purposes of this Agreement until the next determination of Approved
Assumptions provided for herein. Without limiting the generality of the
foregoing, prior to March 30, 1996 compliance with Required Ratios for purposes
of SECTIONS 2.2, 2.3, 7.2(e), 9.9, 10.1(d) AND 10.1(e) at the time of delivery
of any Independent Engineering Report or Coverage Report (including the
Independent Engineering Report and the Coverage Report which caused the Approved
Assumptions to be adjusted pursuant to this subsection) shall be determined on
the basis of the Approved Assumptions as so adjusted.

      (b) Notwithstanding anything in this Agreement to the contrary, (A) 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 (y) the difference between (i) the Available
Amount and (ii) the aggregate Loans, and (B) 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(a).

                                      -32-

      2.3 TERMINATIONS, REDUCTIONS AND CHANGES OF COMMITMENTS.

      (a) MANDATORY. On the Termination Date, all 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: (A) the Company shall give notice of each such termination or
reduction to the Agent as provided in SECTION 5.5; (B) each such partial
reduction shall be in an integral multiple of $5,000,000; and (C) the Company
may not cause the Available Amount to be less than the aggregate principal
amount of the Loans then outstanding plus the Letter of Credit Liabilities then
outstanding. No voluntary reduction in the Available Amount prior to any
scheduled reduction in the Available Amount shall 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.

      (c) NO REINSTATEMENT. No reduction in or termination of the 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 effectiveness of this Agreement to and including the earlier of the date
such Bank's Commitment is terminated or the Termination Date at a rate per annum
equal to 3/8% of such 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 portion of such Bank's 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 fees payable pursuant to this section shall bear
interest at the Post-Default Rate. Upon receipt, the Agent shall disburse such
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 Loans or reduce Letter of Credit Liabilities in such
amounts as shall
                                      -33-

be necessary (A) so that at all times the aggregate outstanding principal amount
of all Loans and all Letter of Credit Liabilities shall not be in excess of the
lesser of the Available Amount and the Aggregate Commitment (as defined in the
Amended and Restated Credit Agreement) or (B) subject to SECTION 2.2(a)(2), to
comply with SECTION 9.9. Any such payment shall be allocated between Loans and
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.

      (b) AVAILABLE AMOUNT. The Company shall from time to time on demand by the
Agent and on the Termination Date prepay the 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 Loans and all Letter of Credit
Liabilities shall be less than or equal to the Available Amount. Any such
payment shall be allocated between 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 (other than any Default resulting solely
from the nonpayment of such Reimbursement Obligation) have been satisfied, be
paid with the proceeds of 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).

      (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
                                      -34-

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, each payment of Commitment Fees and
other fees 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 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:
                                      -35-

                                                           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 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%.

                                      -36-

      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 participations 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 respective amounts 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
Person so purchasing a participation in the Reimbursement Obligations or other
obligations held by other Banks may exercise all rights of set-off, bankers'
lien, counterclaim 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 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.
                                      -37-

      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 but shall be entitled to the benefit of this Agreement for
matters occurring during the time it was a Bank under this 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 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 or holding company 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 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, 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
agrees to sell its Commitment and interest in this Agreement and in the
Obligations and
                                      -38-

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 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 but shall be entitled to the
benefit of this Agreement for matters occurring during the time it was a Bank
under this 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 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. Each such Credit Document shall be in substantially the
form furnished to the Banks prior to their execution of this Agreement, together
with such changes therein as the Agent and the Banks may approve.

      (d) FEES AND EXPENSES. The Company shall have paid to the Agent any fees
in the amounts previously agreed upon in writing among the Company and the
Agent.
                                      -39-

      (e) OPINION OF COUNSEL TO THE COMPANY. The Agent shall have received the
opinions of Andrews & Kurth, L.L.P. and of David L. Hicks, counsel to the
Company, substantially in the forms of SCHEDULES VI and VII, 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 have been executed and delivered by
all parties thereto and shall be in full force and effect.

      (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 7.1, the obligation of the Agent to issue and of 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" (as
that term is defined in the Amended and Restated Credit Agreement) 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, 1994;

      (c) all 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;
                                      -40-

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

      (f) 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.

      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 (e) of this section (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:

      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) (1) 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, 1994), 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.

            (2) 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

                                      -41-

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, 1994, 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), 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
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 and consummate the transactions contemplated therein. The execution,
delivery and performance of the Credit Documents by the Company and the
consummation by the Company of the transactions contemplated therein 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
                                      -42-

execution, delivery or performance of any Credit Document or the consummation by
the Company of the transactions contemplated therein or for the validity or
enforceability thereof have been obtained by the Company and are in full force
and effect.

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

                                      -43-

      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 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.

      8.14 TITLE. (a) The Company has good and defensible title to the oil, gas
and mineral properties included in the Most Recent Engineering Report furnished
to the Banks.

      (b) Such properties and facilities are free and clear of all Liens, except
Permitted Encumbrances and other Liens permitted hereby.

      (c) All oil, gas and mineral leases and leasehold estates, gas purchase
and sales contracts, and other agreements comprising or relating to any of such
properties are valid and subsisting and in full force and effect, except for
those leases, estates, contracts, easements, rights-of-way and agreements which
are in the aggregate not material to oil, gas and mineral properties included in
the Most Recent Engineering Report furnished to the Banks, taken as a whole.

      (d) All rights, permits, easements, servitudes and rights-of-way, failure
to have or maintain which would materially interfere with the development,
maintenance and operation of such properties so as to cause a Material Adverse
Change, have been obtained by the Company and are in full force and effect.

                                      -44-

      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 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 as of the end of and 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;
                                      -45-

      (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 cause 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 cause 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 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

                                      -46-

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),
(c), (d), (e), (f), (g), (h) or (i) or SECTION 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

                                      -47-

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 CLAUSE
(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 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 if the Company or the applicable 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

                                      -48-

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 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,

                                      -49-

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 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;
                                      -50-

            (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 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

                                      -51-

purpose of securing an obligation of the Company or a Restricted Subsidiary or
securing a Guaranty by the Company or any 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 1, 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 Subsidiary 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) any Lien renewing or extending any Lien permitted by CLAUSES
(4), (5), (6), (7), (8), (9 or (10) above; PROVIDED that the principal amount of
the Debt secured thereby is not increased and such Lien is not extended to other
property; and

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

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

                                      -52-

            (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)
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
                                      -53-

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
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

                                      -54-

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 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)(12) 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:

                                      -55-

            (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 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)(12), 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

                                      -56-

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 (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 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
                                      -57-

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)(12); (B) the prepayment in accordance with
this Agreement of any aggregate principal amount of all the Obligations (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.

                                      -58-

      (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 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 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)).

                                      -59-
      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 drafts 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 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

      (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
                                      -60-

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 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

                                      -61-

      (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

      (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, that 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
                                      -62-

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 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 formalities 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. The Agent (which term as used in this section
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 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

                                      -63-

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, of Commitment Fee or of Letter of Credit Fee)
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 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
                                      -64-

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
CONTEMPLATED 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-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
                                      -65-

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 and the Banks. 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 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), (2) the issuance of the Letters of Credit
hereunder and (3) 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
                                      -66-

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 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 CLAIMS OR (F) ANY INVESTIGATION, LITIGATION OR OTHER
PROCEEDING (INCLUDING ANY THREATENED INVESTIGATION OR PROCEEDING) RELATING TO
ANY OF THE FOREGOING, and the Company shall reimburse the Agent, each

                                      -67-

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 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 without giving effect to the first clause of this sentence. Nothing
in this section 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; 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, or any 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,
or any 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;
or (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 Obligations, 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-Agents and the other Banks shall continue to

                                      -68-

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.

      (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 or where all of a Bank's
commitment and Reimbursement Obligations are being assigned) and shall be in an
amount that is an integral multiple of $75,000 (except for certain exceptions
approved by the Company and the Agent or where all of a Bank's Commitment and
Reimbursement Obligations are being assigned); (3) the assigning Bank shall
contemporaneously assign to such assignee Bank or Eligible Assignee an equal
percentage of the assigning Bank's Revolving Commitment, Note, 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 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) but shall be entitled to the benefit of this
Agreement for matters occurring during the time it was a Bank under this
Agreement.
                                      -69-

      (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 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.

                                      -70-

      (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.

      (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 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

                                      -71-

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.

      12.11 GOVERNING LAW. 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

                                      -72-

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.
                                      -73-

      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:   R. GRAHAM WHALING
                                           -------------------------------
                                           R. Graham Whaling
                                           Senior Vice President and
                                             Chief Financial Officer

                                           Address for Notices:

                                           Santa Fe Energy Resources, Inc.
                                           1616 South Voss, Suite 1000
                                           Houston, Texas 77057
                                           Telecopy: (713) 547-5408
                                           Attention: Senior Vice President
                                             and Chief Financial Officer
                                           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
                                           Managing Director

                                           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) 216-4117
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

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

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

                                           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: James R. Allred
 Transfer                                  Telecopy: (713) 247-6432
Reference: Santa Fe Energy
 Resources, Inc.

Commitment: $1,885,714.29
                                           ABN AMRO BANK N.V., HOUSTON AGENCY

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

                                           Address for Notices:
Lending Offices:
ABN AMRO New York                          ABN AMRO Bank N.V., Houston Agency
ABA #026009580                             Three Riverway, Suite 1700
                                           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
                                           BANK OF MONTREAL

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

                                           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
                                           THE BANK OF NEW YORK

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

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: Administration
Reference: Santa Fe Energy                 Telecopy: (212) 635-7923
  Resources, Inc.                          Telex: 232-060 (Answerback: BONY UR)
Specify fees, period.

Commitment: $1,542,857.14
                                           THE BANK OF NOVA SCOTIA

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

                                           Address for Notices:
Lending Office:
Bank of Nova Scotia, New                   The Bank of Nova Scotia
  York Agency                              600 Peachtree Street N.E., Suite 2700
ABA #026002532                             Atlanta, Georgia  30308
For Credit To: Atlanta                     Attention: Claude Ashby
  Agency                                   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

                                           BANQUE PARIBAS HOUSTON AGENCY

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

                                           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: Barton D. Schouest
  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
                                           CIBC INC.

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

                                           Address for Notices:
Lending Offices:
Morgan Guaranty Trust                      CIBC Inc.
  Company of New York                      Two Paces West
ABA #021-000-238                           2727 Paces Ferry Road, Suite 1200
For Credit To: CIBC,                       Atlanta, Georgia 30339
  New York Acct. #630-00-480               Attention: Alex Dymanus
  For Further Credit To:                   Telecopy: (404) 319-4950
  Operations Acct. #0701610                Telex: 54-2413
Attention: Credit Operations               (Answer ack: CANBANK ATL)
Reference: Santa Fe Energy
  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

                                           THE FIRST NATIONAL BANK OF BOSTON

                                     By:
                                           --------------------------------
                                     Name:
                                           --------------------------------
                                     Title:
                                           --------------------------------

                                           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


<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the balance
sheet as of March 31, 1995 and the income statement for the three months ended
March 31, 1995 and is qualified in its entirety by reference to such financial
statements
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-START>                             JAN-01-1995
<PERIOD-END>                               MAR-31-1995
<CASH>                                          18,500
<SECURITIES>                                         0
<RECEIVABLES>                                   72,300
<ALLOWANCES>                                     3,100
<INVENTORY>                                     10,100
<CURRENT-ASSETS>                               113,700
<PP&E>                                       2,212,100
<DEPRECIATION>                               1,362,100
<TOTAL-ASSETS>                               1,033,200
<CURRENT-LIABILITIES>                           96,000
<BONDS>                                              0
<COMMON>                                           900
                          171,400
                                          0
<OTHER-SE>                                     332,800
<TOTAL-LIABILITY-AND-EQUITY>                 1,033,200
<SALES>                                         96,900
<TOTAL-REVENUES>                                98,600
<CGS>                                           86,100
<TOTAL-COSTS>                                   86,100
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               9,200
<INCOME-PRETAX>                                  6,300
<INCOME-TAX>                                     2,700
<INCOME-CONTINUING>                              3,600
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     3,600
<EPS-PRIMARY>                                     0.00
<EPS-DILUTED>                                     0.00
        


</TABLE>


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