MAXUS ENERGY CORP /DE/
SC 13D, 1995-04-11
CRUDE PETROLEUM & NATURAL GAS
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                          SECURITIES AND EXCHANGE COMMISSION
                                Washington, D.C. 20549
                                                   
                                  -----------------

                                     SCHEDULE 13D
                      Under the Securities Exchange Act of 1934*
                                                   
                                  -----------------

                               Maxus Energy Corporation
                                   (Name of Issuer)
                                                   
                                  -----------------

                       Common Stock, Par Value $1.00 Per Share
                            (Title of Class of Securities)
                                                   
                                  -----------------

                                     577730 10 4
                                    (CUSIP Number)
                                                   
                                  -----------------

                                Mr. Jose A. Estenssoro
                                 YPF Sociedad Anonima
                          Avenida Pte. Roque Saenz Pena 777
                             1364 Buenos Aires, Argentina
                           Telephone:  (011) (541) 329-2000
             (Name, Address and Telephone Number of Person Authorized to
                         Receive Notices and Communications)

                                       Copy to:

                               P. Dexter Peacock, Esq.
                                Andrews & Kurth L.L.P.
                              4200 Texas Commerce Tower
                                 Houston, Texas 77002
                              Telephone:  (713) 220-4200

                                    April 5, 1995
               (Date of Event Which Requires Filing of this Statement)

          If the filing person has previously filed a statement on Schedule
          13G  to  report  the acquisition  which  is the  subject  of this
          Schedule 13D,  and is filing this  schedule because of  Rule 13d-
          1(b)(3) or (4), check the following box [ ].

          Check the following box if a fee is being paid with the statement
          [X].

          Note:   Six  copies  of this  statement, including  all exhibits,
          should be filed with the Commission.  See Rule 13d-1(a) for other
          parties to whom copies are to be sent.

          *   The remainder  of this cover page  shall be filled  out for a
              reporting person's  initial filing on this  form with respect
              to the  subject class  of securities, and for  any subsequent
              amendment   containing    information   which   would   alter
              disclosures provided in a prior cover page.

          The information  required  on the  remainder of  this cover  page
          shall  not be deemed to be "filed"  for the purpose of Section 18
          of  the  Securities Exchange  Act  of  1934 ("Exchange  Act")  or
          otherwise  subject to  the  liabilities of  that  section of  the
          Exchange Act but  shall be subject to all other provisions of the
          Exchange Act (however, see the Notes).


<PAGE>


                                     SCHEDULE 13D

         CUSIP NO.  577730 10 4                PAGE   2   OF    20    Pages
                                  
           1   NAME OF REPORTING PERSON
               S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

               YPF Acquisition Corp.

           2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *
                                                               (a)   [ ]
                                                               (b)   [ ]


           3   SEC USE ONLY



           4   SOURCE OF FUNDS*
               BK; AF; SC

           5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEMS 2(d) or 2(e)                      [ ]  



           6   CITIZENSHIP OR PLACE OF ORGANIZATION

               Delaware


                           7   SOLE VOTING POWER
            NUMBER OF          119,339,683
             SHARES
          BENEFICIALLY     8   SHARED VOTING POWER
          OWNED BY EACH        0
            REPORTING
           PERSON WITH     9   SOLE DISPOSITIVE POWER

                               119,339,683

                          10   SHARED DISPOSITIVE POWER
                               0

          11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

                119,339,683

         12     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
                CERTAIN SHARES*                                      [ ]

         13     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                88.0%

         14     TYPE OF REPORTING PERSON*

                CO


                         *SEE INSTRUCTION BEFORE FILLING OUT!


<PAGE>


                                     SCHEDULE 13D

         CUSIP NO.  577730 10 4                PAGE   3   OF    20    Pages
                                  
          1   NAME OF REPORTING PERSON
              S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

              YPF Sociedad Anonima

          2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *
                                                               (a)   [ ]
                                                               (b)   [ ]


          3   SEC USE ONLY



          4   SOURCE OF FUNDS*
              WC

          5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
              PURSUANT TO ITEMS 2(d) or 2(e)                        [ ] 



          6   CITIZENSHIP OR PLACE OF ORGANIZATION
              Argentina


                            7   SOLE VOTING POWER
         NUMBER OF SHARES       119,339,683
           BENEFICIALLY
          OWNED BY EACH     8   SHARED VOTING POWER
         REPORTING PERSON       0
               WITH
                            9   SOLE DISPOSITIVE POWER
                                119,339,683

                           10   SHARED DISPOSITIVE POWER
                                0

          11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

              119,339,683

         12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
              SHARES*                                                [ ]

         13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

              88.0%

         14   TYPE OF REPORTING PERSON*

              CO


                         *SEE INSTRUCTION BEFORE FILLING OUT!

<PAGE>


                                                               Page 4 of 20

          Item 1.   Security and Issuer

               This statement relates to shares of Common Stock, par value
          $1.00 per share (the "Shares"), of Maxus Energy Corporation, a
          Delaware corporation (the "Company" or "Maxus").  The address of
          the Company's principal executive offices is 717 North Harwood
          Street, Dallas, Texas 75201.

          Item 2.   Identity and Background

               This statement is filed on behalf of YPF Acquisition Corp.,
          a Delaware corporation (the "Purchaser"), and YPF Sociedad
          Anonima, a sociedad anonima (stock corporation) organized under
          the laws of the Republic of  Argentina ("YPF") The Purchaser and
          YPF are referred to herein collectively as the "Reporting
          Persons".  YPF is an integrated oil and gas company engaged in
          the exploration, development and production of oil and natural
          gas and in the refining, marketing, transportation, and
          distribution of oil and a wide range of petroleum products,
          petroleum derivatives, petrochemicals and liquid petroleum gas.

               The Purchaser is a recently organized company that has not
          conducted any business except in connection with the transaction
          described in Item 3 below.

               YPF maintains its principal offices at Avenida Pte. Roque Saenz 
          Pena 777, 1364 Buenos Aires, Argentina. The Purchaser maintains its
          principal executive offices at 600 Madison Avenue, 20th Floor,
          New York, New York 10021.

               The name, residence or business address, citizenship and
          present principal occupation or employment of each of the
          directors and executive officers of each of the Reporting Persons
          and the name, principal business and address of the organization
          in which such occupation or employment is conducted are set forth
          in Schedule I attached hereto.

               During the five years immediately prior to the date hereof,
          none of the Reporting Persons nor, to the best of their
          knowledge, any of the persons whose names are set forth in
          Schedule I, (i) has been convicted in a criminal proceeding
          (excluding traffic violations and similar misdemeanors), or (ii)
          has been a party to a civil proceeding of a judicial or
          administrative body of competent jurisdiction and as a result of
          such proceeding was or is subject to a judgment, decree or  final
          order enjoining future violations of, or prohibiting or mandating
          activities subject to, federal or state securities laws or
          finding any violation with respect to such laws.

          Item 3.   Source and Amount of Funds or Other Consideration

               On February 28, 1995, Maxus, the Purchaser and YPF entered
          into an Agreement of Merger (the "Merger Agreement") pursuant to
          which (i) the Purchaser agreed to make a cash tender offer (the
          "Offer") for all the issued and outstanding Shares for $5.50 per
          Share in cash and (ii) subject to the satisfaction of certain
          conditions, including the condition that Shares representing at
          least a majority of the Voting Shares (as defined below) of
          Maxus, on a fully diluted basis, were validly tendered pursuant
          to the Offer, the Purchaser and Maxus agreed that the Purchaser
          would be merged with and into Maxus (the "Merger") as soon as
          practicable following the satisfaction of such conditions.

               YPF, through its subsidiary the Purchaser, submitted the Offer
          to shareholders of Maxus on March 3, 1995. The Offer expired at 
          midnight on March 30, 1995, at which time 119,339,683 Shares 
          representing 88.0% of the issued and outstanding Shares as of such 
          date, had been tendered.  The Purchaser took delivery of all the 
          Shares tendered and delivered the purchase price for them on 
          April 5, 1995.

               The total amount of funds required by the Purchaser to
          acquire the entire common equity interest in the Company,
          including the purchase of Shares pursuant to the Offer and the
          payment for Shares converted into the right to receive cash
          pursuant to the Merger, and to pay related fees and expenses, is
          expected to be approximately $800 million. On April 5, 1995, the
          Purchaser entered into a credit agreement (the "Credit
          Agreement") with lenders for which The Chase Manhattan Bank
          (National Association) ("Chase") acts as agent, pursuant to which
          the lenders extended to the Purchaser a $550 million credit
          facility (the "Purchaser Facility").  On April 5, 1995, the
          Purchaser borrowed $442.2 million under the
<PAGE>


                                                               Page 5 of 20

          Purchaser Facility and received a capital contribution of
          $250 million from YPF.  On April 5, 1995, the Purchaser used such
          borrowings under the Purchaser Facility and the funds contributed
          to it from YPF to purchase 119,339,683 Shares pursuant to the
          Offer.  Payment for Shares that are converted into the right to 
          receive cash pursuant to the Merger will be made by the surviving
          corporation, Maxus, from additional borrowings by the Purchaser
          under the Purchaser Facility and from additional capital
          contributions from YPF.

               Pursuant to a commitment letter from Chase (the "Commitment
          Letter"), Chase has agreed to provide two additional credit
          facilities aggregating up to $425 million: (i) a  credit facility
          of up to $250 million to be extended to Midgard Energy Company
          ("Midgard"), a wholly owned subsidiary of the Company (the
          "Midgard Facility"), and (ii) a credit facility of up to $175
          million to be extended to certain other subsidiaries of the
          Company as described below (the "Subsidiaries Facility"). 
          Revised term sheets for the Midgard Facility and the Subsidiaries
          Facility are annexed as Schedules V and VI, respectively, to the 
          Credit Agreement for the Purchaser Facility, which is attached 
          hereto as Exhibit A, and are incorporated herein by reference.  The 
          proceeds of the Midgard Facility and the Subsidiaries Facility will be
          used to repay, in part, the Purchaser Facility. Chase has
          confirmed that it is willing to provide the entire amount of
          these two additional facilities.  Chase also has advised YPF that
          it intends to arrange one or more syndicates of commercial banks,
          financial institutions and other investors to provide a portion
          of these facilities and that it proposes to act as the agent for
          such lenders in connection with each of the facilities.

               The following is a description of the principal terms of the
          Purchaser Facility and a description of the proposed terms of the
          Midgard Facility and the Subsidiaries Facility.

               Purchaser Facility.  The Purchaser Facility provides for
          loans in an aggregate amount of up to $550 million (collectively,
          the "Purchaser Loan") and will mature on the earlier of (i) the
          date and time of the filing of a Certificate of Merger with the
          Secretary of State of the State of Delaware (the "Effective
          Time") and (ii) June 12, 1995 (such earlier date being the
          "Purchaser Maturity Date").  The Purchaser borrowed $442.2
          million under the Purchaser Facility on April 5, 1995, and may
          obtain one additional advance thereunder up to the remaining
          $107.8 million of credit available thereunder.  At the
          Purchaser's option, the interest rate applicable to the Purchaser
          Loan is either (i) the one-month London Interbank Offered Rate
          plus a margin of 2 1/4% or (ii) the Base Rate (as defined in the
          Credit Agreement relating to the Purchaser Facility) plus a
          margin of 1 1/4%.  The Purchaser Loan is guaranteed by YPF as
          described below.  In addition, the Purchaser has agreed not to
          dispose of any Shares prior to the Merger, except for cash
          at fair market value.  The lenders' obligation to fund the
          remaining amount of credit available under the Purchaser Facility
          is subject to certain conditions as described below.  It is
          anticipated that up to $125 million of the Purchaser Loan, plus
          accrued interest on the Purchaser Loan, will be repaid on the
          Purchaser Maturity Date from cash held by the Company.

               Midgard Facility.  The Reporting Persons currently
          anticipate that on the Purchaser Maturity Date, up to $250
          million of the Purchaser Loan will be repaid with funds provided
          to the Company by Midgard.  The Reporting Persons anticipate that
          Midgard will provide the funds from the proceeds of a loan of up
          to $250 million (the "Midgard Loan") pursuant to the Midgard
          Facility.  The Midgard Loan will be made in a single drawing,
          will mature on December 31, 2003 and will be repaid in up to 28
          consecutive quarterly installments commencing on March 31, 1997,
          subject to semi-annual borrowing base redeterminations.  At
          Midgard's option, the interest rate applicable to the Midgard
          Loan will be, until March 31, 1997, either (i) the one-, two- or
          three-month London Interbank Offered Rate plus a margin of 1 3/4% or
          (ii) the Base  Rate (to be defined in the credit agreement
          relating to the Midgard Facility) plus a margin of  3/4% and,
          thereafter, either (iii) the one-, two- or three-month London
          Interbank Offered Rate plus a margin of 2 1/4% or (iv) the Base Rate
          plus a margin of 1 1/4%. The Midgard Loan will not be secured but
          will be guaranteed by YPF and the Company.  The agreement
          evidencing the Midgard Loan will contain, among other things, a
          negative pledge on all assets of Midgard, subject to customary
          exceptions. The lenders' obligation to fund the Midgard Loan will
          be subject to certain conditions as described below.  It is
          anticipated that the Midgard Loan will be repaid with funds
          generated by Midgard's business operations.

               Subsidiaries Facility.  The Reporting Persons currently
          anticipate that on or before the Purchaser Maturity Date, up to
          $175 million of the Purchaser Loan will be repaid with funds
          provided to the 
<PAGE>


                                                               Page 6 of 20

          Company by Maxus Northwest Java, Inc. ("Java") and Maxus
          Southeast Sumatra, Inc. ("Sumatra") (collectively, the
          "Designated Subsidiaries").  The Company anticipates that the
          Designated Subsidiaries will provide these funds from the
          proceeds of a loan of up to $175 million (the "Subsidiaries
          Loan") made to them pursuant to the Subsidiaries Facility.  The
          Subsidiaries Loan will be made in a single drawing on the
          Purchaser Maturity Date, will mature on December 31, 2002 and
          will be repaid in up to 24 consecutive quarterly installments
          commencing on March 31, 1997, subject to semi-annual borrowing
          base redeterminations.  At the option of the Designated
          Subsidiaries, the interest rates applicable to the Subsidiaries
          Loan will be, until March 31, 1997, either (i) the one-, two- or
          three-month London Interbank Offered Rate plus a margin of 2 1/4% or
          (ii) the Base Rate (to be defined in the credit agreement
          relating to the Subsidiaries Facility) plus a margin of 1 1/4% and,
          thereafter, either (iii) the one-, two- or three-month London
          Interbank Offered Rate plus a margin of 2 3/4% or (iv) the Base Rate
          plus a margin of 1 3/4%.  The Subsidiaries Loan to Java and Sumatra
          will be secured by certain of the assets of Java and Sumatra,
          will be guaranteed by the Company and a new subsidiary formed to
          hold the stock of Java and Sumatra, and the guarantee by that new
          holding company will be secured by the stock of Java and Sumatra. 
          The agreement evidencing the Subsidiaries Loan will contain a
          negative pledge on all of the other assets of the Designated
          Subsidiaries, subject to customary exceptions.

               The lenders' obligation to fund the Subsidiaries Loan will
          be subject to certain conditions as described below.  It is
          anticipated that the Subsidiaries Loan will be repaid with funds
          generated by the Designated Subsidiaries' business operations.  

               Upon further review of the value of the assets of Midgard
          and the Designated Subsidiaries, the terms of the Midgard Loan
          and the Subsidiaries Loan may be modified to provide for
          intercompany guarantees or other arrangements whereby Midgard and
          the Designated Subsidiaries provide support for each other's
          loans.

               Conditions to Funding.  The obligation of the lenders to
          advance the remaining amount of credit available under the
          Purchaser Facility is subject to the fulfillment of certain
          conditions, including but not limited to, (i) the absence of any
          material adverse change in the condition (financial or
          otherwise), business operations, assets, nature of assets or
          liabilities of (a) YPF and its subsidiaries (taken as a whole),
          (b) the Purchaser and (c) the Company and its subsidiaries (taken
          as a whole) and (ii) the lenders' satisfaction that the Company
          will have sufficient cash available to pay the lesser of (a) $125
          million or (b) the difference between (1) the principal amount of
          the Purchaser Loan outstanding on the Purchaser Maturity Date and
          (2) the lesser of $425 million or such other amount as is
          available under the Midgard Loan and the Subsidiaries Loan as
          described above.

               The obligation of the lenders to fund the Midgard Loan and
          the Subsidiaries Loan will be subject to certain additional
          conditions, including without limitation, (i) the effectiveness
          of the Merger, (ii) the absence of any material adverse change in
          the condition (financial or otherwise), business, operations,
          assets, nature of assets or liabilities of (a) YPF and it
          subsidiaries (taken as a whole), (b) the Company and its
          subsidiaries (taken as a whole) and (c) in the case of the
          Midgard Loan, Midgard and its subsidiaries taken as a whole, and
          (d) in the case of the Subsidiaries Loan, Java or Sumatra or
          their holding company, (iii) the payment in full of the Purchaser
          Loan and (iv) all indebtedness and other obligations of each of
          Midgard, Java and Sumatra to the Company and its other
          subsidiaries shall have been paid in full or satisfactorily
          subordinated to the repayment of the Midgard Loan and the
          Subsidiaries Loan.

               Prepayment.  Each of the Purchaser Loan, the Midgard Loan
          and the Subsidiaries Loan (collectively, the "Loans") may be
          prepaid in whole or in part without premium or penalty, except
          for costs associated with the prepayment of any portion of a Loan
          bearing interest at a rate determined by reference to the London
          Interbank Offered Rate prior to the end of any applicable
          interest period.

               YPF Guarantee.  YPF has guaranteed the repayment of the
          Purchaser Facility and will guarantee the repayment of the
          Midgard Facility and the Subsidiaries Facility.  The YPF
          guarantee of the Purchaser Facility is secured by a pledge of all
          of the shares of capital stock of the Purchaser.  The guarantee
          also 
<PAGE>


                                                               Page 7 of 20

          contains certain covenants including a limitation on YPF's debt
          level and a required level of tangible net worth.

               Certain Fees.  YPF has agreed to pay to Chase customary fees
          in connection with each of the facilities.

               Covenant Regarding Financing.  In the Merger Agreement, YPF
          and the Purchaser agreed that they will use their reasonable best
          efforts to obtain the financings contemplated by the Commitment
          Letter.

          Item 4.   Purpose of Transaction

               In mid-1994, YPF's Board of Directors adopted the goals of
          becoming an internationally diversified oil and gas company with
          significant assets outside Argentina and obtaining management
          personnel skilled and experienced in exploring for and producing
          oil and gas internationally.  YPF believes that Maxus presents a
          good fit with its goals.  Accordingly, YPF and the Purchaser
          entered into the Merger Agreement, and made the Offer pursuant to
          the terms of the Merger Agreement, for the purpose of acquiring
          all of the outstanding Shares.

               (a)  Acquisition and disposition of securities of Maxus.  

               On February 28, 1995, Maxus, the Purchaser and YPF entered
          into the Merger Agreement pursuant to which, as described in Item
          3 above, the Purchaser made the Offer.  The Offer expired on
          March 30, 1995, at which time 119,339,683 Shares, representing
          88.0% of the issued and outstanding Shares as of such date, had
          been tendered.  The Purchaser took delivery of all the Shares
          tendered and delivered the purchase price for them on April 5,
          1995.  Pursuant to the Merger Agreement, Maxus, the Purchaser and
          YPF agreed to cause the merger of the Purchaser with and into
          Maxus as soon as practicable following the purchase of Shares
          pursuant to the Offer.  Pursuant to the Delaware General
          Corporation Law ("DGCL") and the Company's Restated Certificate of
          Incorporation (the "Certificate"), the approval and adoption of
          the Merger require the affirmative vote of the holders of a
          majority of the combined voting power of the outstanding Shares
          and $4.00 Cumulative Convertible Preferred Stock (collectively,
          the "Voting Shares"), voting together as a single class.

               If the Merger is consummated, YPF will become the sole
          holder of the Shares (except to the extent that, following the
          Effective Time, holders of outstanding options and warrants
          exercise such options and warrants for Shares, or holders of
          shares of the Company's $4.00 Cumulative Convertible Preferred
          Stock (the "$4.00 Preferred Stock") exercise their rights to
          convert shares of $4.00 Preferred Stock into Shares), and the
          current holders of Shares  other than YPF will no longer have an
          equity interest in the Company and will not share in its future
          earnings or growth, if any.   Instead, each such stockholder
          (other than those who perfect appraisal rights under Section 262
          of the DGCL will have the right to receive $5.50 in cash, without
          interest, for each Share held immediately prior to the Merger. 
          All outstanding shares of the Company's preferred stock will
          remain outstanding and have the identical powers, preferences,
          rights, qualifications, limitations and restrictions as such
          shares of preferred stock currently have (including, in the case
          of the $4.00 Preferred Stock, the right to convert into Shares),
          except for certain changes to the terms of the $9.75 Cumulative
          Convertible Preferred Stock (the "$9.75 Preferred Stock") as
          agreed to by the holder of the $9.75 Preferred Stock as described
          below in Item 6.  Any outstanding option or warrant to acquire
          Shares that is not exercised prior to the Effective Time, or
          surrendered in the case of employee or director stock options,
          will remain outstanding and have the identical terms as such
          options and warrants currently have.

               (b)  Merger of Purchaser and Maxus.  

               Pursuant to the terms of the Merger Agreement, YPF intends
          to seek the Merger of Purchaser and Maxus as soon as possible. 
          Certain effects of the Merger Agreement and the Merger are
          described herein this Item 4.  The Merger Agreement is attached
          hereto as Exhibit C.  
<PAGE>
                                                               Page 8 of 20

               (c)  Sales or transfers of material amounts of assets of
          Maxus or its subsidiaries.  

               While the Reporting Persons reserve the right to take or
          recommend such action as they may consider desirable in light of
          their ongoing review of the businesses and operations of Maxus
          and its subsidiaries, neither of the Reporting Persons has any
          present plans or proposals which relate to or would result in the
          sale or transfer of a material amount of assets of Maxus or any
          of its subsidiaries.

               (d)  Change in the present Board of Directors and management
          of Maxus.  

               The Merger Agreement provides, among other things, that upon
          the Purchaser's acquisition of a majority of the outstanding
          Voting Shares pursuant to the Offer, and from time to time
          thereafter so long as YPF and/or any of its direct or indirect
          wholly owned subsidiaries (including the Purchaser) own a
          majority of the outstanding Voting Shares, YPF is entitled,
          subject to compliance with applicable law and the Certificate, to
          designate at its option up to that number of directors, rounded
          up to the nearest whole number, of the Company's Board of Directors
          (the "Board") as will make the percentage of the Company's directors 
          designated by YPF equal to the percentage of outstanding Voting Shares
          held by YPF and any of its direct or indirect wholly owned 
          subsidiaries (including the Purchaser), including Shares accepted for 
          payment pursuant to the Offer.  The Company has agreed that it will, 
          upon the request of YPF, promptly increase the size of its Board 
          and/or use its reasonable best efforts to secure the resignation of 
          such number of directors as is necessary to enable YPF's designees to
          be elected to the Board and will use its reasonable best efforts to
          cause YPF's designees to be so elected, subject to Section 14(f)
          of the Exchange Act; except that, prior to the Effective Time,
          the Company will use its reasonable best efforts to assure that
          the Board always has (at its election) at least three members who
          were directors of the Company as of February 28, 1995.  At such
          times, the Company will use its reasonable best efforts, subject
          to any limitations imposed by applicable law or rules of the New
          York Stock Exchange (the "NYSE"), to cause persons designated by
          YPF to constitute the same percentage as such persons represent
          on the Board of (i) each committee of the Board, (ii) each board
          of directors or board of management of each subsidiary of the
          Company, and (iii) each committee of each such board.

               The Purchaser's ownership of 85.3% of the outstanding Voting 
          Shares entitles it to be represented on the Board pursuant to the 
          above-described provision, and the Purchaser has designated five
          persons, Messrs. Jose A. Estenssoro, Cedric Bridger, Peter
          Gaffney, James R. Lesch and P. Dexter Peacock (collectively, the
          "Designees") to serve on the Board.  YPF and the Purchaser expect
          that all of the directors of the Company, except Messrs. Charles
          L. Blackburn, George L. Jackson and R.A. Walker, will submit
          their resignations from the Board on or about April 22, 1995
          (the "Election Date") and that, effective upon such resignations, 
          the remaining directors on the Board will elect the
          Designees to the Board to fill the vacancies created thereby.  As
          a result of the foregoing, YPF and the Purchaser expect that the
          Board will consist of the five Designees, and Messrs. Blackburn,
          Jackson and Walker, with five vacancies. 

               Certain additional information relating to the election of
          the Designees is contained in the information statement filed
          by the Company pursuant to Rule 14f-1 under the Exchange Act (the
          "14f-1 Information Statement") with the Securities and Exchange
          Commission (the "Commission") and mailed on or about April 11,
          1995 to Stockholders of record as of April 4, 1995.

               Cedric Bridger presently is the sole director of the
          Purchaser.  It is currently contemplated that prior to the
          Effective Time, each of the Designees and Messrs. Blackburn,
          Jackson and Walker will be elected to the Board of Directors of
          the Purchaser.  Pursuant to the Merger Agreement, at the
          Effective Time, the directors of Purchaser immediately prior to
          the Effective Time will be the directors of the Company and the
          officers of the Company immediately prior to the Effective Time
          will be the officers of the Company, in each case until their
          successors have been duly elected or appointed and qualified or
          until their earlier death, resignation or removal in accordance
          with the Company's Certificate, By-Laws and the DGCL.  

               On April 7, 1995, all of the Company's executive officers gave
          notice of their intent to resign under circumstances in which they 
          had the right to receive severance payments thereunder. In order
          to facilitate the transition following such event, the Company and
          its eight executive officers agreed that the executive officers would
          continue to work for the Company in their present positions at their 
          current level of compensation until June 30, 1995 or otherwise 
          mutually agreed. The Company also agreed to pay the executive
          officers such severance payments no later than April 15, 1995. The
          Reporting Persons have not yet made any decisions as to executive
          officers of the Company following the effectiveness of such 
          resignations.

               It is expected that Mr. Charles L. Blackburn will resign as
          Chairman, President and Chief Executive Officer of the Company on the 
<PAGE>
                                                               Page 9 of 20

          Election Date.  YPF has asked Mr. Blackburn to become an international
          consultant to YPF and to remain a director of the Company.  Under the 
          proposed two-year arrangement, Mr. Blackburn would be 
          available to render consulting services for a minimum of 60 days
          per year and would be paid a retainer of $180,000 per year.  Mr.
          Blackburn would also be paid $3,000 per day for each day in
          excess of 60 days per year in which he renders consulting
          services for YPF.  He would also be provided offices in Dallas
          and Buenos Aires. 

               Mr. Peter Gaffney, a Designee, is expected to be named the
          interim Chief Executive Officer of the Company on the Election
          Date. Mr. Gaffney is to receive $50,000 per month and will be 
          eligible to participate in the Company's benefit plans for executive 
          officers.  This six-month  arrangement between Mr. Gaffney and YPF 
          is to be effective as of April 1,1995, is renewable upon mutual 
          agreement and provides that, with respect to the period before Mr. 
          Gaffney is named interim Chief Executive Officer, Mr. Gaffney will 
          serve as an advisor to YPF with respect to the Company.

               (e)  Material changes in present capitalization and dividend
          policy of Maxus.  

               The Reporting Persons and the Company plan to engage in a
          material change in the present capitalization of the Company
          through the assumption of the debt described in Item 3 above.  In
          addition, pursuant to the Merger Agreement, in the event that the
          Company is unable to meet its obligations as they come due,
          whether at maturity or otherwise, including, solely for the
          purposes of this undertaking, dividend and redemption payments
          with respect to the Preferred Stock, YPF has agreed to capitalize
          the Company in an amount necessary to permit the Company to meet
          such obligations; provided, however, that YPF's aggregate
          obligation will be (i) limited to the amount of debt service
          obligations under the Purchaser Facility, and to the extent the
          Purchaser Facility is replaced by the Midgard Facility and/or the
          Subsidiaries Facility, the amount of debt service obligations
          under the Midgard Facility and/or the Subsidiaries Facility and
          (ii) reduced by the amount, if any, of capital contributions
          received by the Company after the Effective Time and the net
          proceeds of any sale by the Company of common stock or non-
          redeemable preferred stock after the Effective Time.  The
          foregoing obligations of YPF will survive until the ninth anniversary 
          of the Effective Time.  On March 7, 1995, YPF also announced that its 
          board of directors authorized YPF to guarantee the Company's 
          outstanding long-term debt as of the Effective Time.  The long-term 
          debt to be covered by the YPF guarantee is the Company's outstanding 
          11 1/4%, 11 1/2% and 8 1/2% Sinking Fund Debentures, its outstanding 
          9 7/8%, 9 1/2% and 9 3/8% Notes, and its outstanding medium-term 
          notes.

               Neither of the Reporting Persons has any present plans or
          proposals which relate to or would result in a material change in
          the dividend policy of the Company.

               (f)  Other material changes in the Company's business or
          corporate structure.  

                    The Company's business will continue to be conducted in
          its current corporate form.  Various corporate overhead and
          administrative functions may be consolidated with those of YPF. 
          While the Reporting Persons reserve the right to take or
          recommend such action as they may consider desirable in light of
          their ongoing review of the business and operations of Maxus and
          its subsidiaries, neither of the Reporting Persons has any
          present plans or proposals which relate to other material changes
          in the Company's business or corporate structure, including the
          sale of Maxus' material assets, entry into joint ventures, or the
          expansion or contraction of operations in various geographic
          areas.

               (g)  Changes in the Company's charter, by-laws or instruments 
          corresponding thereto or other actions which may impede the
          acquisition of control of the Company by any person.

                    While the Reporting Persons reserve the right to take
          or recommend such actions as they may consider desirable in light
          of their ongoing review of the businesses and operations of Maxus
          and its subsidiaries, neither of the Reporting Persons has any
          present plans or proposals which relate to changes in the
          Company's Certificate, By-Laws or instruments corresponding thereto
          which may impede the acquisition of control of the Company by any
          person or other actions which may impede the acquisition of control 
          of the Company by any person.
<PAGE>


                                                              Page 10 of 20

               (h) and (i)  Delisting of securities of the Company; 
          Termination of registration pursuant to Section 12(g)(4) of the
          Act.

               Following completion of the Merger, it is expected that the
          Shares will be delisted from the NYSE, the Pacific Stock Exchange
          and any other securities exchanges on which the Shares are
          listed.  The Shares are currently registered under the Exchange
          Act.  Registration of the Shares under the Exchange Act may be
          terminated upon application by the Company to the Commission if
          the Shares are not listed on a national securities exchange and
          there are fewer than 300 record holders of the Shares.  However,
          termination of registration of the Shares under the Exchange Act
          will not affect the registration of the $4.00 Preferred Stock and
          the $2.50 Preferred Stock under the Exchange Act, the holders of
          which will continue to be entitled to information required to be
          furnished to them thereunder.  Termination of registration of the
          Shares would reduce substantially the information required to be
          furnished by the Company to holders of Shares and would make
          certain provisions of the Exchange Act, including the requirement
          of furnishing a proxy statement or information statement in
          connection with stockholders' meetings pursuant to Section 14(a)
          and the requirements of Rule 13e-3 under the Exchange Act with
          respect to "going private" transactions, no longer applicable to
          the Shares.  Furthermore, if the registration of the Shares under
          the Exchange Act were to be terminated, the ability of
          "affiliates" of the Company and persons holding "restricted
          securities" of the Company to dispose of such securities pursuant
          to Rule 144 under the Securities Act of 1933, as amended (the
          "Securities Act"), may be impaired or eliminated.  If
          registration of the Shares under the Exchange Act were
          terminated, the Shares would no longer be "margin securities" or
          be eligible for listing or National Association of Securities
          Dealers Automated Quotation ("NASDAQ") reporting.  YPF may seek
          or cause the Company to make an application for termination of
          registration of the Shares as soon as possible following the
          Merger.

               In addition to the Shares, the Company's $4.00 Preferred
          Stock, the $2.50 Preferred Stock and the 8 1/2% Sinking Fund
          Debentures Due April 1, 2008 (the "8 1/2% Debentures") are
          registered under the Exchange Act and listed on the NYSE.  If
          registration of the Shares under the Exchange Act were
          terminated, and registration under the Exchange Act of the $4.00
          Preferred Stock, the $2.50 Preferred Stock, the 8 1/2% Debentures or
          other securities of the Company continued, the Exchange Act
          requirement that the Company file periodic reports would remain
          applicable.  YPF and the Company have agreed to use their
          respective reasonable efforts to continue the listing on the NYSE
          of the series of Preferred Stock which are currently listed on
          such Exchange, or, if any such series is delisted, to cause such
          series of the Preferred Stock to be listed on another national
          securities exchange within the United States or admitted to
          trading on the NASDAQ and on other organized securities markets
          in such foreign jurisdictions in which such shares are presently
          traded. Notwithstanding anything in the Merger Agreement to the
          contrary, the obligations of the Company and YPF regarding
          continued listing of the Preferred Stock will survive the
          Effective Time with respect to any  series of Preferred Stock
          until such time as the aggregate market value of all outstanding
          shares of such series is less than $2 million or the number of
          outstanding shares of such series is less than 100,000.  The NYSE
          has informed the Company that the $4.00 Preferred Stock will be
          delisted from the NYSE when the Shares are delisted (which is
          expected to occur promptly after the Effective Time).  On April
          7, 1995, the Company received notice for the National Association
          of Securities Dealers that the $4.00 Preferred Stock had been
          accepted for trading on the NASDAQ.  The Reporting Persons expect
          the $4.00 Preferred Stock will being trading on the NASDAQ
          promptly following the Effective Time.

               The Exchange Act provides that registration of the $4.00
          Preferred Stock, the $2.50 Preferred Stock or the 8 1/2% Debentures
          may be terminated upon application by the Company to the
          Commission if such class of securities is not listed on a
          national securities exchange and there are fewer than 300 record
          holders of such class of securities.  Termination of registration
          of any such class of securities would reduce substantially the
          information required to be furnished by the Company to holders of
          such class of securities.  Termination of registration of the
          $4.00 Preferred Stock or the $2.50 Preferred Stock would make
          certain provisions of the Exchange Act, including the requirement
          of furnishing a proxy statement or information statement pursuant
          to Section 14(a) in connection with stockholders' meetings and
          the requirements of Rule 13e-3 under the Exchange Act with
          respect to "going private" transactions, no longer applicable to
          such class of securities.  Furthermore, if the registration of
          any such class of securities under the Exchange Act 
<PAGE>


                                                              Page 11 of 20

          were to be terminated, the ability of "affiliates" of the Company
          and persons holding "restricted securities" of the Company to
          dispose of such securities pursuant to Rule 144 under the
          Securities Act may be impaired or eliminated.  If registration of
          any such class of securities under the Exchange Act were to be
          terminated, such class of securities would no longer be "margin
          securities" or be eligible for listing on NASDAQ reporting.

          Item 5.   Interest  in Securities of the Issuer

               (a) and (b) The Purchaser has sole voting and dispositive
          power over 119,339,683 Shares, which represents approximately
          88.0% of the outstanding Shares and 85.3% of the outstanding
          Voting Shares.  YPF, by virtue of its ownership of all of the
          capital stock of the Purchaser, is a beneficial owner of all of
          the Shares owned by the Purchaser.  If the Merger is consummated,
          YPF will own 100% of the then-outstanding Shares.

               (c)  In connection with the Offer, Mr. James R. Lesch, a director
          of YPF tendered 2,000 Shares. Except as disclosed in this Schedule 
          13D, no Reporting Person has effected any other transactions in 
          Shares in the 60 day period ended as of the date hereof.

               (d)  No other person is known to have the right to receive
          or the power to direct the receipt of dividends from, or the
          proceeds from the sale of, the Shares reported in this Item 5.

               (e)  Inapplicable.

          Item 6.   Contracts, Arrangements, Understandings or
          Relationships with Respect to Securities of the Issuer

               (a)  The Merger Agreement.

               The Merger Agreement provides for, and YPF has designated,
          various persons to the Board of Maxus as described in Item 4(d)
          above.  Additional material terms of the Merger Agreement
          include:

                    (i)  The Merger.  The Merger Agreement provides that,
               unless the Merger Agreement is terminated or abandoned (see
               "Termination" below), as soon as practicable following
               fulfillment or waiver, if permissible, of the conditions
               described below under "Conditions to the Merger," at the
               Effective Time, the Purchaser will be merged with and into
               the Company, whereupon the separate existence of the
               Purchaser will cease and the Company will be the surviving
               corporation in the Merger (as such, the "Surviving
               Corporation").  The Merger Agreement further provides that
               the Certificate and the By-Laws of the Company as in effect
               at the Effective Time will be the certificate and the by-
               laws of the Surviving Corporation.

                    (ii) Consideration to be Paid in the Merger.  The
               Merger Agreement provides that each Share outstanding
               immediately prior to the Effective Time (other than Shares
               held in the treasury of the Company, Shares owned by YPF,
               the Purchaser, and any other direct or indirect subsidiary
               of YPF, and other than Shares held by Stockholders who
               perfect their appraisal rights under Section 262 of the
               DGCL) will, at the Effective Time, be cancelled and retired
               and be converted into a right to receive $5.50 per Share in
               cash, without interest, upon the surrender of the Stock
               Certificates formerly representing such Shares, and each
               Share held in the treasury of the Company, and each Share
               held by YPF, the Purchaser or any other direct or indirect
               subsidiary of YPF immediately prior to the Effective Time
               will, at the Effective Time, be cancelled and retired and no
               payment will be made with respect thereto.  Each share of
               common stock of the Purchaser issued and outstanding
               immediately prior to the Effective Time will, by virtue of
               the Merger and without any action on the part of the holder
               thereof, be converted into and become one share of common
               stock of the Surviving Corporation, and each outstanding
               share of preferred stock of the Company will remain
               outstanding and have the identical powers, preferences,
               rights, qualifications, limitations and restrictions as such
               shares of preferred stock currently have, except for such
               changes thereto as agreed to by the holder of the $9.75
               Preferred Stock as described in "$9.75 Preferred Stock
<PAGE>


                                                              Page 12 of 20

               Arrangements" below.  The number of shares of outstanding
               common stock of the Purchaser immediately prior to the
               Effective Time will be equal to the number of outstanding
               shares of common stock of the Company at such time.

                    (iii)     Company Options and Restricted Shares.  The
               Merger Agreement provides that the Company will cooperate
               with YPF and the Purchaser in an effort to obtain the
               surrender of all Options, in exchange for the payments set
               forth in Schedule 2.6 of the Merger Agreement.  In addition,
               immediately prior to the Effective Time, the restrictions on
               certain restricted Shares, including Shares held by certain
               executive officers of the Company, will lapse without
               further action.

                    (iv) Representations and Warranties.  The Merger
               Agreement contains representations and warranties by the
               Company, relating to, among other things, (a) the
               organization of the Company and its subsidiaries and other
               corporate matters, (b) the capital structure of the Company,
               (c) the authorization, execution, delivery and consummation
               of the transactions contemplated by the Merger Agreement,
               (d) consents and approvals, (e) documents filed by the
               Company with the Commission and the accuracy of the
               information contained therein, (f) the absence of certain
               changes and events, (g) the accuracy of the information
               contained in documents filed with the Commission in
               connection with the Offer and the Merger, (h) litigation,
               (i) compliance with laws and certain environmental matters,
               (j) tax, insurance and labor matters, and (k) matters
               relating to Title IV of the Employee Retirement Income
               Security Act of 1974, as amended, and the rules and
               regulations promulgated thereunder. In addition, the Merger
               Agreement contains representations and warranties by YPF and
               the Purchaser related to, among other things, (a) the
               organization of YPF and the Purchaser and other corporate
               matters, (b) the authorization, execution, delivery and
               consummation of the transactions contemplated by the Merger
               Agreement, (c) consents and approvals, and (d) YPF's having
               no reason to believe that, following the Merger, the
               borrowings under the Purchaser Facility and the other
               financings contemplated by the Commitment Letter, the
               Company will not be able to meet its obligations as they
               come due including, solely for purposes of this
               representation and warranty, preferred stock dividends and
               redemption requirements.

                    (v)  Redemption of Rights.  Pursuant to the Merger
               Agreement, effective as of March 22, 1995, the Company
               redeemed all of the outstanding rights (the "Rights") issued
               pursuant to the Rights Agreement dated September 2, 1988
               between the Company and Society National Bank, as rights
               agent, so that the Rights did not become exercisable as a
               result of the Offer.

                    (vi) Indemnification of Directors.  Pursuant to the
               Merger Agreement, for a period of seven years following the
               Effective Time, YPF has agreed to cause the Surviving
               Corporation to indemnify, defend and hold harmless the
               present and former officers, directors, employees and agents
               of the Company and its subsidiaries as described herein.

                    (vii)     YPF's Undertaking.  The Merger Agreement
               provides that whenever it requires the Purchaser to take any
               action, such requirements will be deemed to include an
               undertaking on the part of YPF to cause the Purchaser to
               take such action. 

                    (viii)    Listing of Preferred Stock.  Pursuant to the
               Merger Agreement, the Company will, and YPF will cause the
               Surviving Corporation to, subject to certain limitations,
               use their respective reasonable efforts to continue the
               listing on the NYSE of the shares of Preferred Stock which
               are currently listed on such Exchange as more fully
               described elsewhere herein, and if any such series is
               delisted, to cause such series of the Preferred Stock to be
               listed on another national securities exchange within the
               United States or admitted to trading on the NASDAQ and on
               other organized securities markets in such foreign
               jurisdictions in which such shares are presently traded.
               Notwithstanding anything in the Merger Agreement to the
               contrary, the obligations of the Company and YPF regarding
               continued listing of such shares of preferred stock will
               survive the Effective Time with respect to any such series
               of preferred stock until such time as the aggregate
<PAGE>

                                                              Page 13 of 20

               market value of all outstanding shares of such series is
               less than $2 million or the number of outstanding shares of
               such series is less than 100,000.  The NYSE has informed the
               Company that the $4.00 Preferred Stock will be delisted from
               the NYSE when the Shares are delisted (which is expected to
               occur promptly after the Effective Time).  See also
               Item 4(h) and (i) above.

                    (ix) Certain Obligations of YPF.  Pursuant to the
               Merger Agreement, in the event that the Company is unable to
               meet its obligations as they come due, whether at maturity
               or otherwise, including, solely for the purposes of this
               undertaking, dividend and redemption payments with respect
               to the preferred stock, YPF has agreed to capitalize the
               Company in an amount necessary to permit the Company to meet
               such obligations; provided, however, that YPF's aggregate
               obligation will be (a) limited to the amount of debt service
               obligations under the Purchaser Facility, and to the extent
               the Purchaser Facility is replaced by the Midgard Facility
               and/or the Subsidiaries Facility, the amount of debt service
               obligations under the Midgard Facility and/or the
               Subsidiaries Facility and (b) reduced by the amount, if any,
               of capital contributions received by the Company after the
               Effective Time and the net proceeds of any sale by the
               Company of common stock or non-redeemable preferred stock
               after the Effective Time.  The foregoing obligations of YPF
               will survive until the ninth anniversary of the Effective
               Time.  In addition, on March 7, 1995, YPF announced that its
               board of directors authorized YPF to guarantee the Company's
               outstanding long-term debt as of the Effective Time.  The
               long-term debt to be covered by the YPF guarantee is the
               Company's outstanding 11 1/4%, 11 1/2% and 8 1/2% Sinking Fund
               Debentures, its outstanding 9 7/8%, 9 1/2% and 9 3/8% Notes, and 
               its outstanding medium-term notes.  See also "Item 3 -- YPF
               Guarantee" above.

                    Termination.  The Merger Agreement provides that it may
               be terminated and the Merger contemplated thereby may be
               abandoned at any time prior to the Effective Time, whether
               before or after approval by the Stockholders of the Company:
               (i) by the mutual consent of the boards of directors of YPF,
               the Purchaser and the Company; (ii) by the Company if either
               YPF or the Purchaser materially breaches, or by YPF and the
               Purchaser if the Company materially breaches, any of the
               representations and warranties or covenants contained in the
               Merger Agreement; (iii) by either YPF and the Purchaser or
               the Company, if the Merger is not consummated prior to June
               30, 1995; provided, however, that the right to terminate the
               Merger Agreement pursuant to this provision will not be
               available to any party whose failure to fulfill any
               obligation under the Merger Agreement has been the cause of,
               or resulted in, the failure of the Effective Time to occur
               on or before such date; (iv) by either YPF and the
               Purchaser, on the one hand, or the Company, on the other
               hand, if either one (or any assignee permitted under the
               Merger Agreement) is restrained, enjoined or otherwise
               precluded by an order, decree, ruling or injunction (other
               than an order or injunction issued on a temporary or
               preliminary basis) of a court of competent jurisdiction,
               governmental authority or other regulatory or administrative
               agency or commission, from consummating the Merger or making
               the acquisition or holding by YPF or its subsidiaries of the
               Shares or shares of common stock of the Surviving
               Corporation illegal and all means of appeal and all appeals
               from such order, decree, ruling, injunction or other action
               have been finally exhausted; (v) by the Company if the Board
               determines that it will not recommend the approval of the
               Merger by the Company's Stockholders (or if such
               recommendation is withdrawn) based upon the advice of
               outside counsel that such action is necessary for the Board
               to comply with its fiduciary duties to stockholders under
               applicable law; or (vi) by YPF and the Purchaser, if:
               (a) the Board shall not have recommended or shall withdraw,
               modify or change its recommendation relating to the Merger
               in a manner materially adverse to YPF or shall have resolved
               to do any of the foregoing; (b) the Board shall have
               recommended to the stockholders of the Company that they
               accept or approve, or the Company or any of its subsidiaries
               shall have agreed to engage in, a Competing Transaction (as
               defined below).  "Competing Transaction" is defined as any
               of the following involving the Company or any of its
               subsidiaries: (i) any merger, consolidation, share exchange,
               business combination or other similar transaction except for
               such of the foregoing in which the only parties are the
               Company or one or more subsidiaries of the Company; (ii) any
               sale, lease, exchange, mortgage, pledge, transfer or other
               disposition of the assets of the Company or any of its
               subsidiaries constituting 5% or more of the consolidated
               assets of the Company or accounting for 5% or more of the
               consolidated revenues of the Company in a single transaction
               or series of related transactions
<PAGE>


                                                              Page 14 of 20

               involving any person other than the Company or one or more
               subsidiaries of the Company; or (iii) any tender or exchange
               offer for 20% or more of the outstanding Voting Shares or
               the filing of a registration statement under the Securities
               Act in connection therewith.

                    In the event of any termination and abandonment
               pursuant to the Merger Agreement, no party to the Merger
               Agreement (or any of its directors or officers) will have
               any liability or further obligation to any other party to
               the Merger Agreement, except for certain express obligations
               under the Merger Agreement and except that no party will be
               relieved from liability for any breach of the Merger
               Agreement. Any action by the Company to terminate the Merger
               Agreement as described herein will require only the approval
               of a majority of the directors of the Company then in office
               who were directors of the Company on the date of the Merger
               Agreement, or persons nominated or elected to succeed such
               directors by a majority of such directors.

                    In the event the Merger Agreement is terminated,
               (i) YPF and the Purchaser will not, and will cause their
               subsidiaries and affiliates controlled by them not to,
               acquire or offer to acquire or request permission to acquire
               or offer to acquire (either directly or pursuant to a waiver
               of this or any other covenant in the Merger Agreement) any
               additional Voting Shares otherwise than pursuant to the
               Merger for a period of not less than 24 months after
               termination of the Merger Agreement without prior written
               approval of the Board, and (ii) the provisions of the
               confidentiality agreement previously entered into between
               the Company and YPF (or one of its affiliates) will continue
               to apply.

                    Whether or not the Merger is consummated, all costs and
               expenses incurred in connection with the Offer, the Merger
               Agreement and the transactions contemplated thereby will be
               paid by the party incurring such costs and expenses;
               provided, however, that (i) in the event of a termination of
               the Merger Agreement by (a) the Company if the Board
               determines that it will not recommend the approval of the
               Merger by the Company's Stockholders (or if such
               recommendation is withdrawn) based upon the advice of
               outside counsel that such action is necessary for the Board
               to comply with its fiduciary duties to stockholders under
               applicable law and (b) YPF and the Purchaser if (1) the
               Board shall withdraw, modify or change its recommendation
               relating to the Merger in a manner materially adverse to YPF
               or shall have resolved to do any of the foregoing or (2) the
               Board shall have recommended to the stockholders of the
               Company that they accept or approve, or the Company or any
               of its subsidiaries shall have agreed to engage in, a
               Competing Transaction, the Company will be obligated to
               promptly pay to the Purchaser $20 million in cash, and
               (ii) in the event of a termination of the Merger Agreement
               by the Company or by YPF if at the date of such termination
               any condition to the funding of remaining available credit
               under the Purchaser Facility or the other loans contemplated
               by the Commitment Letter has not been satisfied, provided
               that at such time no other condition to YPF's obligation to
               consummate the Merger, is unsatisfied (other than the
               failure to meet the Minimum Share Condition as a result of
               the failure to obtain such funding), YPF and the Purchaser,
               jointly and severally, will be obligated to promptly pay to
               the Company $20 million in cash.

               (b)  $9.75 Preferred Stock Arrangements.

               In accordance with the provisions of the Certificate, the
          holder of the $9.75 Preferred Stock was required to approve the
          Merger Agreement in order for the Merger to be consummated. To
          induce such holder to consent to the Merger and, effective upon
          the Effective Time, to (i) waive certain rights, including
          appraisal rights, conversion rights, rights under the Rights
          Agreement and the right to increased dividends under certain
          circumstances, (ii) waive certain covenants restricting the
          Company's ability to take certain actions, and (iii) terminate
          the registration rights associated with the $9.75 Preferred
          Stock, YPF has agreed, effective as of the Effective Time, to
          guarantee the payment and performance of each and every
          obligation of the Company to the registered owners of the
          Company's $9.75 Preferred Stock, including the obligation to pay
          quarterly dividend amounts and to redeem shares of the $9.75
          Preferred Stock in certain circumstances.  In addition, the
          Company has agreed, effective upon the Effective Time, to
          (i) waive certain rights, including the right to redeem the $9.75
          Preferred Stock at its option and the right of first offer with
<PAGE>


                                                              Page 15 of 20

          respect to the transfer of the shares of $9.75 Preferred Stock,
          (ii) waive certain transfer restrictions with respect to the
          $9.75 Preferred Stock, and (iii) pay to The Prudential Insurance
          Company of America ("Prudential"), which is the current holder of
          all of the outstanding shares of the $9.75 Preferred Stock, a
          restructuring fee of $250,000 upon the Effective Time.  YPF has
          agreed to reimburse Prudential for all of its reasonable out-of-
          pocket expenses arising in connection with these agreements.  See
          "Item 7--Exhibit D and Exhibit E," which constitute the
          arrangement with the holder of the Company's $9.75 Preferred
          Stock.

               (c)  YPF Guarantee of Purchaser Obligations.

               YPF has guaranteed the obligations of the Purchaser under
          the Purchaser Facility, and in connection therewith YPF pledged
          all of the capital stock of the Purchaser to the lenders
          providing the Purchaser Facility.  In the event of a foreclosure
          on such capital stock, the lender would be the beneficial owner
          of the Shares owned by the Purchaser or YPF, as the case may be. 
          See "Item 3 -- YPF Guarantee" above.

               (d)  Other Contracts and Arrangements.

               Except as described above, none of the Reporting Persons has
          any other contract, arrangement, understanding or relationship
          (whether or not legally enforceable) with any other person with
          respect to any securities of the Company, including but not
          limited to transfer or voting of any of the securities, finder's
          fees, joint ventures, loan or option arrangements, puts or calls,
          guarantees of profits, division of profits or loss, or the giving
          or withholding of proxies.

          Item 7.   Material to be Filed As Exhibits

               Exhibit A      Credit Agreement, dated April 5, 1995, among the
                              lenders specified therein for which The Chase
                              Manhattan Bank (National Association) acts as
                              agent, YPF Acquisition Corp. and YPF Sociedad
                              Anonima.

               Exhibit B      Commitment Letter, dated February 24, 1995,
                              between The Chase Manhattan Bank (National
                              Association) and YPF Sociedad Anonima.  

               Exhibit C      Agreement of Merger, dated February 28, 1995,
                              among Maxus Energy Corporation, YPF Sociedad
                              Anonima and YPF Acquisition Corp. 

               Exhibit D      Guarantee Agreement, dated February 28, 1995,
                              between YPF Sociedad Anonima and The Prudential
                              Insurance Company of America.  

               Exhibit E      Letter Agreement between Maxus Energy Corporation
                              and The Prudential Insurance Company of America,
                              dated February 28, 1995.  

<PAGE>


                                                              Page 16 of 20


                                      SIGNATURE
               After reasonable inquiry and to the best of our knowledge
          and belief, each of the undersigned certifies that the
          information set forth in this statement is true, complete and
          correct.

          Dated:  April 11, 1995

                                           YPF SOCIEDAD ANONIMA
          

                                           By:  /s/  Jose A. Estenssoro    
                                                ---------------------------
                                             Jose A. Estenssoro
                                             President


                                           YPF ACQUISITION CORP.


                                           By:  /s/ Jose A. Estenssoro     
                                                ---------------------------
                                             Jose A. Estenssoro
                                             President


<PAGE>


                                                                   Page 17 of 20

                                   SCHEDULE  I

                        DIRECTORS AND EXECUTIVE OFFICERS
          1.   Directors and Executive Officers of the Purchaser.  The following
               -------------------------------------------------
table sets forth the name, current business address and present principal
occupation or employment and material occupations, positions, offices or
employments for the past five years of each director and executive officer of
YPF.  Unless otherwise indicated, the current business address of each person is
c/o YPF--Directorio, Avenida Pte. Roque Saenz Pena 777, 1364 Buenos Aires,
Argentina and each occupation set forth opposite an individual's name refers to
employment with the Purchaser.  Each such person is a citizen of the Republic of
Argentina, unless otherwise indicated.


                      Present Principal Occupation Or Employment and
                    Current Business Address; Material Positions Held
   Name          During The Past Five Years and Business Addresses Thereof
   ----          ---------------------------------------------------------
Jose A. Estenssoro  President (see Directors and Executive Officers of 
                    YPF below).

Cedric Bridger      Director since April 4, 1995, Vice President, Assistant
                    Secretary and Treasurer (See Directors and Executive 
                    Officers of YPF below).

Carlos Olivieri     Vice President and Assistant Secretary (See Directors and
                    Executive Officers of YPF below).

Darial R. Sneed     Vice President.  Since 1993, Ms. Sneed has served as Vice
                    President and Manager, Investor Relations for YPF - U.S.A.,
                    Inc.  From 1990 to 1993, she served as Associate Director,
                    Investor Relations for BP America Inc.  Her business address
                    is YPF -- U.S.A., Inc., 660 Madison Avenue, 20th Floor, New
                    York, New York 10021.  Ms. Sneed is a citizen of the United
                    States of America.

Norberto Noblia     Secretary (See Directors and Executive Officers of YPF 
                    below).

     2.   Directors and Executive Officers of YPF.  The following table sets
          ---------------------------------------
forth the name, business address and present principal occupation or employment,
and material occupations, positions, offices or employments for the past five
years of each director and executive officer of YPF.  Unless otherwise
indicated, the current business address of each such person is c/o
YPF--Directorio, Avenida Pte. Roque Saenz Pena 777, 1364 Buenos Aires, 
Argentina, and each occupation set forth opposite an individual's name refers 
to employment with YPF.  Each such person is a citizen of the Republic of 
Argentina, unless otherwise indicated.  

                      Present Principal Occupation Or Employment and
                    Current Business Address; Material Positions Held
   Name          During The Past Five Years and Business Addresses Thereof
   ----          ---------------------------------------------------------

Jose A. Estenssoro  Director since 1991, President since 1990.  He has been 
                    associated with YPF since 1990, when he was appointed 
                    Trustee by the Argentine Government.  From 1987 through 
                    1989, he was President of Compania Sol Petroleo S.A. and 
                    previously, from 1962 to 1987, he occupied various 
                    executive positions with Hughes Tool Company, where he was 
                    named President in 1987.

Nells Leon          Director since 1991, Executive Vice President since 1990. He
                    was Vice President of Operations of Sol Petroleo S.A. from
                    1987 to 1990.

<PAGE>


                                                                   Page 18 of 20

Mario L. Pineiro        Director since 1992.  He retired in 1992 as CEO of 
                        Alejandro Llauro e Hijos S.A., where he served for many 
                        years.  Mr. Pineiro is also a director of Transportadora
                        de Gas del Sur S.A.

Miguel Madanes          Director since 1993.  Presently involved in the cable
                        television industry in Argentina and Brazil. Previously 
                        a Director of YPF from 1991 to 1992.  He served as the 
                        CEO of Fate S.A. from 1971 until 1991.

Bayless A. Manning      Director since 1993.  Director of IBJ Schroder Bank & 
                        Trust Company. Currently serves as a consultant. 
                        Partner of Paul, Weiss, Rifkind, Wharton & Garrison 
                        from 1977 until 1990. Mr. Manning is a citizen of the 
                        United States of America.

Carlos de la Vega       Director since 1993. Presently Director of Institutional
                        Relations and Human Resources of CIBA-Geigy Argentina.
                        President of the Argentine Chamber of Commerce from 1988
                        to 1993.  He was also President of the Ibero-American 
                        Association of Chambers of Commerce from 1990 to 1992.

James R. Lesch          Director since 1993.  Mr. Lesch is currently retired.  
                        He was Chief Executive Officer (1979-1986) and Chairman
                        of the Board (1981-1986) of the Hughes Tool Company and 
                        he also served as Commissioner, State of Texas 
                        Department Commerce (1988-1992). He previously served 
                        as Director of the American Petroleum Institute.  Mr. 
                        Lesch is a citizen of the United States of America.  
                        His business address is P. O. Box 4442, Houston, 
                        Texas  77210.

Ernst Schneider         Director since 1993.  Chairman of the Board of Leu 
                        Holding and Bank Leu Ltd. and a member of the Board of 
                        Directors of CS Holding Ltd. since 1993.  Previously, 
                        he served as Vice Chairman and member of the Board of 
                        Credit Suisse.  Mr. Schneider is a dual citizen of 
                        Switzerland and the United States of America.

Hector A. Domeniconi    Director since 1993.  Presently, Managing Director of  
                        DEXCOR, a consulting firm in Argentina.  Held several 
                        positions in the Ministry of Economy of Argentina from 
                        1990 through 1992.

Luis A. Prol            Director since 1993.  President of YPF Gas S.A.  Held 
                        several positions in both Argentine Federal and 
                        Provincial governments, serving as Minister of the 
                        Treasury and Finance of the Province of Formosa from 
                        1987 to 1989 and as Secretary of Hydrocarbons and 
                        Mining of the Ministry of Economy from 1991 to 1992.

Angel Cirasino          Director since 1993. Assistant Secretary for 
                        Petrochemistry and Mining of the Ministry of Economy 
                        of the Province of Mendoza since 1991. He was Managing 
                        Partner of Motomar Cuyo Marketing S.R.L. from 1989 to 
                        1991.

Rodolfo Alejandro Diaz  Director since 1994.  Mr. Diaz is a lawyer and has 
                        private practices in Buenos Aires and Mendoza.  He was 
                        Secretary of Labor from 1989 until 1991 and Labor 
                        Minister from 1991 until 1992.

Eduardo Petazze         Vice President, Refining and Marketing and Head of
                        Restructuring Project since 1993.  Previously, he 
                        served as Vice President of Exploration and Production 
                        from 1992 to 1993 and Head of the Restructuring Project
                        since 1991.  Joined YPF in 1983.

<PAGE>


                                                                   Page 19 of 20


Marcelo Guiscardo   Vice President, Exploration and Production since 1993.  
                    Previously, he was associated with Exxon Corporation from 
                    1979 to 1993.

Cedric Bridger      Vice President, Finance and Corporate Development since 
                    1992. Before joining YPF, he was Marketing Manager for CVB
                    Industrias Mecanicas in Brazil from 1989.  He was associated
                    with Hughes Tool Company from 1964 to 1989.

Carlos A. Olivieri  Vice President and General Controller since 1993.  He was 
                    Controller and Director of Aerolineas Argentinas S.A. from
                    1991 to 1992, a Director of the Central Bank of Argentina 
                    in 1991 and an accountant with Arthur Andersen & Co. from 
                    1974 to 1986.

Raul H. Oreste      Vice President, Human Resources since 1990.  He was 
                    previously associated with YPF from 1943 to 1963 and from 
                    1965 to 1977.  From 1978 to 1990, Mr. Oreste was associated
                    with Compania Naviera Perez Companc.

Juan A. Rodriguez   Vice President of Engineering and Technology since 1992.  He
                    joined YPF in 1990.  From 1968 to 1990, he was associated 
                    with Hughes Tool Company of Argentina.

Juan J. Garacija    Vice President, Purchasing, Contracts and Environmental
                    Protection since 1992. Consultant from 1989 to 1990, when he
                    joined YPF.  He has previously served YPF in various
                    capacities from 1941 to 1976 and from 1982 to 1988.

Norberto Noblia     Vice President, Legal Affairs since 1989. Previously, he was
                    associated with the Sindicatura General de Empresas Publicas
                    from 1975 to 1986.

Martin Paez-Allende Vice President for Institutional Affairs since September 
                    1994.  From 1991 to 1994, he practiced law.  Until 1991 he 
                    served as Vice President and member of the Board of Shell 
                    C.A.P.S.A. (Argentina).

<PAGE>


                                                                   Page 20 of 20

                                  Exhibit Index

                                  Exhibit                 Sequential Page Number
                                  -------                 ----------------------

Exhibit A           Credit Agreement, dated April 5, 1995,
                    among the lenders specified therein for
                    which The Chase Manhattan Bank (National
                    Association) acts as agent, YPF
                    Acquisition Corp. and YPF Sociedad
                    Anonima.

Exhibit B           Commitment Letter, dated February 24,
                    1995, between The Chase Manhattan Bank
                    (National Association) and YPF Sociedad
                    Anonima.  

Exhibit C           Agreement of Merger, dated February 28,
                    1995, among Maxus Energy Corporation,
                    YPF Sociedad Anonima and YPF Acquisition
                    Corp. 

Exhibit D           Guarantee Agreement, dated February 28,
                    1995, between YPF Sociedad Anonima and
                    The Prudential Insurance Company of
                    America.  

Exhibit E           Letter Agreement between Maxus Energy
                    Corporation and The Prudential Insurance
                    Company of America, dated February 28,
                    1995. 



                                                             Exhibit A



                                                             CONFORMED COPY
                                                             File No. 33307

                                                                         


                             ____________________________


                                YPF ACQUISITION CORP.

                             (To Be Merged With and Into

                              MAXUS ENERGY CORPORATION)

                                         and

                                YPF SOCIEDAD ANONIMA,
                                     as Guarantor

                            _____________________________



                                   CREDIT AGREEMENT


                              Dated as of April 5, 1995


                            ______________________________



                               THE CHASE MANHATTAN BANK
                               (NATIONAL ASSOCIATION),
                                       as Agent



                                                                         















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<PAGE>



                                  TABLE OF CONTENTS

                    This Table of Contents is not part of the Agreement to
          which it is attached but is inserted for convenience of reference
          only.

                                                                       Page
                                                                       ----

          Section 1.  Definitions and Accounting Matters  . . . . . . .   1
               1.01   Certain Defined Terms . . . . . . . . . . . . . .   1
               1.02   Accounting Terms and Determinations . . . . . . .  18
               1.03   Types of Loans  . . . . . . . . . . . . . . . . .  18
               1.04   Copies of Documents . . . . . . . . . . . . . . .  18

          Section 2.  Commitments, Loans, Notes and Prepayments . . . .  18
               2.01   Loans . . . . . . . . . . . . . . . . . . . . . .  18
               2.02   Borrowings  . . . . . . . . . . . . . . . . . . .  19
               2.03   Changes of Commitments  . . . . . . . . . . . . .  19
               2.04   Lending Offices . . . . . . . . . . . . . . . . .  20
               2.05   Several Obligations; Remedies Independent . . . .  20
               2.06   Notes . . . . . . . . . . . . . . . . . . . . . .  20
               2.07   Prepayments and Conversions or Continuations of
                       Loans  . . . . . . . . . . . . . . . . . . . . .  21

          Section 3.  Payments of Principal and Interest  . . . . . . .  21
               3.01   Repayment of Loans  . . . . . . . . . . . . . . .  21
               3.02   Interest  . . . . . . . . . . . . . . . . . . . .  21

          Section 4.  Payments; Pro Rata Treatment; Computations;
                       Etc. . . . . . . . . . . . . . . . . . . . . . .  22
               4.01   Payments  . . . . . . . . . . . . . . . . . . . .  22
               4.02   Pro Rata Treatment  . . . . . . . . . . . . . . .  23
               4.03   Computations  . . . . . . . . . . . . . . . . . .  24
               4.04   Minimum Amounts . . . . . . . . . . . . . . . . .  24
               4.05   Certain Notices . . . . . . . . . . . . . . . . .  24
               4.06   Non-Receipt of Funds by the Agent . . . . . . . .  25
               4.07   Sharing of Payments, Etc. . . . . . . . . . . . .  26

          Section 5.  Yield Protection, Etc.  . . . . . . . . . . . . .  27
               5.01   Additional Costs  . . . . . . . . . . . . . . . .  27
               5.02   Limitation on Types of Loans  . . . . . . . . . .  29
               5.03   Illegality  . . . . . . . . . . . . . . . . . . .  30
               5.04   Treatment of Affected Loans . . . . . . . . . . .  30
               5.05   Broken Funding  . . . . . . . . . . . . . . . . .  31
               5.06   U.S. Taxes  . . . . . . . . . . . . . . . . . . .  32
               5.07   Replacement of Certain Lenders  . . . . . . . . .  33

          Section 6.  Guarantee . . . . . . . . . . . . . . . . . . . .  34
               6.01   The Guarantee . . . . . . . . . . . . . . . . . .  34
               6.02   Obligations Unconditional . . . . . . . . . . . .  34


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<PAGE>
                                                                       Page
                                                                       ----

               6.03   Reinstatement . . . . . . . . . . . . . . . . . .  35
               6.04   Subrogation . . . . . . . . . . . . . . . . . . .  36
               6.05   Remedies  . . . . . . . . . . . . . . . . . . . .  36
               6.06   Instrument for the Payment of Money . . . . . . .  36
               6.07   Continuing Guarantee  . . . . . . . . . . . . . .  36
               6.08   Taxes . . . . . . . . . . . . . . . . . . . . . .  37

          Section 7.  Conditions Precedent  . . . . . . . . . . . . . .  38
               7.01   Initial Loans . . . . . . . . . . . . . . . . . .  38
               7.02   Second Loans  . . . . . . . . . . . . . . . . . .  43
               7.03   Initial and Second Loans  . . . . . . . . . . . .  45

          Section 8.  Representations and Warranties  . . . . . . . . .  48
               8.01   Corporate Existence . . . . . . . . . . . . . . .  48
               8.02   Litigation  . . . . . . . . . . . . . . . . . . .  48
               8.03   No Breach . . . . . . . . . . . . . . . . . . . .  48
               8.04   Action  . . . . . . . . . . . . . . . . . . . . .  50
               8.05   Approvals . . . . . . . . . . . . . . . . . . . .  50
               8.06   Use of Credit . . . . . . . . . . . . . . . . . .  51
               8.07   Investment Company Act  . . . . . . . . . . . . .  51
               8.08   Public Utility Holding Company Act  . . . . . . .  51
               8.09   Certain Documents . . . . . . . . . . . . . . . .  51
               8.10   Capitalization of Company . . . . . . . . . . . .  51
               8.11   True and Complete Disclosure  . . . . . . . . . .  51
               8.12   Pledge Agreement  . . . . . . . . . . . . . . . .  52
               8.13   Special Purpose Corporation . . . . . . . . . . .  52
               8.14   Transaction Costs . . . . . . . . . . . . . . . .  52
               8.15   YPF Representations . . . . . . . . . . . . . . .  52

          Section 9.  Covenants of Obligors . . . . . . . . . . . . . .  53
               9.01   Financial Statements, Etc.  . . . . . . . . . . .  53
               9.02   Litigation; Etc.  . . . . . . . . . . . . . . . .  56
               9.03   Existence, Etc. . . . . . . . . . . . . . . . . .  57
               9.04   Insurance . . . . . . . . . . . . . . . . . . . .  58
               9.05   Prohibition of Fundamental Changes  . . . . . . .  58
               9.06   Limitation on Liens . . . . . . . . . . . . . . .  59
               9.07   Indebtedness  . . . . . . . . . . . . . . . . . .  61
               9.08   Investments . . . . . . . . . . . . . . . . . . .  61
               9.09   Dividend Payments . . . . . . . . . . . . . . . .  62
               9.10   Maxus Cash  . . . . . . . . . . . . . . . . . . .  62
               9.11   Ownership of Refinancing Subsidiaries . . . . . .  62
               9.12   Special Covenants relating to YPF Acquisition  
                       Prior to Merger  . . . . . . . . . . . . . . . .  63
               9.13   Special Covenants relating to Midgard Group and 
                      the Maxus Indonesia Group and their  
                       Subsidiaries . . . . . . . . . . . . . . . . . .  63
               9.14   Payments of Maxus Indebtedness  . . . . . . . . .  64
               9.15   Lines of Business . . . . . . . . . . . . . . . .  65
               9.16   Transactions with YPF Affiliates  . . . . . . . .  65
               9.17   Use of Proceeds . . . . . . . . . . . . . . . . .  65
               9.18   Modifications of Certain Documents  . . . . . . .  65


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<PAGE>
                                                                       Page
                                                                       ----

               9.19   Consummation of the Merger  . . . . . . . . . . .  66
               9.20   Ownership of YPF Acquisition and Maxus  . . . . .  66
               9.21   Other Covenants of YPF  . . . . . . . . . . . . .  66

          Section 10. Events of Default . . . . . . . . . . . . . . . .  66

          Section 11. The Agent . . . . . . . . . . . . . . . . . . . .  69
               11.01  Appointment, Powers and Immunities  . . . . . . .  69
               11.02  Reliance by Agent . . . . . . . . . . . . . . . .  70
               11.03  Defaults  . . . . . . . . . . . . . . . . . . . .  71
               11.04  Rights as a Lender  . . . . . . . . . . . . . . .  71
               11.05  Indemnification . . . . . . . . . . . . . . . . .  71
               11.06  Non-Reliance on Agent and Other Lenders . . . . .  72
               11.07  Failure to Act  . . . . . . . . . . . . . . . . .  72
               11.08  Resignation or Removal of Agent . . . . . . . . .  73
               11.09  Consents under Other Basic Documents  . . . . . .  73

          Section 12. Miscellaneous . . . . . . . . . . . . . . . . . .  73
               12.01  Waiver  . . . . . . . . . . . . . . . . . . . . .  73
               12.02  Notices . . . . . . . . . . . . . . . . . . . . .  74
               12.03  Expenses, Etc.  . . . . . . . . . . . . . . . . .  74
               12.04  Amendments, Etc.  . . . . . . . . . . . . . . . .  75
               12.05  Successors and Assigns  . . . . . . . . . . . . .  76
               12.06  Assignments and Participations  . . . . . . . . .  76
               12.07  Survival  . . . . . . . . . . . . . . . . . . . .  78
               12.08  Captions  . . . . . . . . . . . . . . . . . . . .  78
               12.09  Counterparts  . . . . . . . . . . . . . . . . . .  78
               12.10  Jurisdiction, Venue, Immunity and Service of
                       Process  . . . . . . . . . . . . . . . . . . . .  79
               12.11  Governing Law . . . . . . . . . . . . . . . . . .  80
               12.12  Waiver of Jury Trial  . . . . . . . . . . . . . .  80
               12.13  Special Waiver  . . . . . . . . . . . . . . . . .  80
               12.14  Judgment Currency . . . . . . . . . . . . . . . .  80
               12.15  Use of English Language . . . . . . . . . . . . .  82
               12.16  Treatment of Certain Information;
                      Confidentiality . . . . . . . . . . . . . . . . .  83

















          BII\32161_1  04/07/95  10:16am(iii)











<PAGE>
          SCHEDULE I   -  Representations and Warranties of YPF
          SCHEDULE II  -  Covenants of YPF
          SCHEDULE III -  Events of Default relating to YPF
          SCHEDULE IV  -  Litigation
          SCHEDULE V   -  Term Sheet - Midgard Facility 
          SCHEDULE VI  -  Term Sheet - Java/Sumatra Facility 
          SCHEDULE VII -  Legal Requirements
          SCHEDULE VIII - Permitted Transactions

          EXHIBIT A      -    Form of Note
          EXHIBIT B      -    Form of Pledge Agreement
          EXHIBIT C      -    Form of Assumption Agreement
          EXHIBIT D-1    -    Form of Opinion of Special New York Counsel
                                to the Obligors, to be delivered on the
                                Initial Borrowing Date
          EXHIBIT D-2    -    Form of Opinion of Special Argentine Counsel
                                to the Obligors, to be delivered on the
                                Initial Borrowing Date
          EXHIBIT D-3    -    Form of Opinion of Special Counsel to
                                the Obligors, to be delivered on the
                                Second Borrowing Date
          EXHIBIT D-4    -    Form of Opinion of Special New York Counsel
                                to Maxus, to be delivered on the Second
                                Borrowing Date
          EXHIBIT D-5    -    Form of Opinion of General Counsel of Maxus,
                                to be delivered on the Second Borrowing
                                Date
          EXHIBIT E-1    -    Form of Opinion of Special New York Counsel
                                to Chase, to be delivered on the Initial
                                Borrowing Date
          EXHIBIT E-2    -    Form of Opinion of Special Argentine Counsel
                                to Chase, to be delivered on the Initial
                                Borrowing Date
          EXHIBIT E-3    -    Form of Opinion of Special New York Counsel
                                to Chase, to be delivered on the Second
                                Borrowing Date
          EXHIBIT F      -    Form of Confidentiality Agreement
          EXHIBIT G      -    Form of Notice of Assignment
          EXHIBIT H      -    Form of Process Agent Acceptance
















          BII\32161_1  04/07/95  10:16am (iv)











<PAGE>

                    CREDIT AGREEMENT dated as of April 5, 1995, between: 
          YPF ACQUISITION CORP., a corporation duly organized and validly
          existing under the laws of the State of Delaware ("YPF
                                                             ---
          Acquisition"); YPF SOCIEDAD ANONIMA, an Argentine sociedad
          -----------
          anonima duly organized and validly existing under the laws of the
          Republic of Argentina ("YPF"); each of the lenders that is a
                                  ---
          signatory hereto identified under the caption "LENDERS" on the
          signature pages hereto or that, pursuant to Section 12.06(b)
          hereof, shall become a "Lender" hereunder (individually, a
          "Lender" and, collectively, the "Lenders"); and THE CHASE
           ------                          -------
          MANHATTAN BANK (NATIONAL ASSOCIATION), a national banking
          association, as agent for the Lenders (in such capacity, together
          with its successors in such capacity, the "Agent").
                                                     -----

                    Each of YPF and YPF Acquisition has requested that the
          Lenders make loans to the Company (as defined in Section 1.01
          hereof) in an aggregate principal amount not exceeding
          $550,000,000 and the Lenders are prepared to make such loans upon
          the terms and conditions hereof.  Accordingly, the parties hereto
          agree as follows:

                    Section 1.  Definitions and Accounting Matters.
                                ----------------------------------

                    1.01  Certain Defined Terms.  As used herein, the
                          ---------------------
          following terms shall have the following meanings (all terms
          defined in this Section 1.01 or in other provisions of this
          Agreement in the singular to have the same meanings when used in
          the plural and vice versa):
                         ---- -----

                    "Acquisition" shall mean (a) the purchase by YPF
                     -----------
          Acquisition of Maxus Shares (at a price equal to $5.50 per share)
          for cash pursuant to the Tender Offer Documents and (b) the
          Merger.

                    "Acquisition Documents" shall mean the Tender Offer
                     ---------------------
          Documents, the Merger Agreement, the certificate of merger with
          respect to the Merger, all Proxy Materials and any other document
          sent by YPF, YPF Acquisition or Maxus to the stockholders of
          Maxus or filed by YPF, YPF Acquisition or Maxus with the
          Commission in connection with the Acquisition.

                    "Acquisition Financing Transactions" shall mean (a) the
                     ----------------------------------
          loans and other extensions of credit made or contemplated to be
          made under this Agreement, the YPF Credit Agreement and each of
          the Refinancing Facilities, (b) the guarantees of any of such
          loans and other extensions of credit provided for by or
          contemplated in connection with this Agreement and each of the
          Refinancing Facilities and (c) any Liens provided for by or
          contemplated in connection with this Agreement and each of the
          Refinancing Facilities to secure any of such loans and other
          extensions of credit or guarantees.



          BII\32161_1  04/07/95  10:16am
                                   Credit Agreement
                                   ----------------











<PAGE>
                                        - 2 -

                    "Affiliate" shall mean, with respect to any Person, any
                     ---------
          other Person that directly or indirectly controls, or is under
          common control with, or is controlled by, such Person.  As used
          in this definition, "control" (including, with its correlative
                               -------
          meanings, "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), provided that, in any
                                                --------
          event, any Person that owns directly or indirectly securities
          having 5% or more of the voting power for the election of
          directors or other governing body of a corporation or 5% or more
          of the partnership or other ownership interests of any other
          Person (other than as a limited partner of such other Person or
          as an owner of an undivided fractional interest in hydrocarbon
          reserves or production with respect to which such Person is not
          the operator) will be deemed to control such corporation or other
          Person.  Notwithstanding the foregoing, no individual shall be an
          Affiliate of any Person solely by reason of his or her being a
          director, officer or employee of such Person.

                    "Applicable Lending Office" shall mean, for each Lender
                     -------------------------
          and for each Type of Loan, the "Lending Office" of such Lender
          (or of an affiliate of such Lender) designated for such Type of
          Loan on the signature pages hereof or such other office of such
          Lender (or of an affiliate of such Lender) as such Lender may
          from time to time specify to the Agent and the Company as the
          office by which its Loans of such Type are to be made and
          maintained.

                    "Applicable Margin" shall mean, with respect to Base
                     -----------------
          Rate Loans, 1-1/4% per annum and with respect to Eurodollar
          Loans, 2-1/4% per annum.

                    "Argentina" shall mean the Republic of Argentina.
                     ---------

                    "Argentine Taxes" shall have the meaning assigned to
                     ---------------
          such term in Section 6.08 hereof.

                    "Assumption Agreement" shall mean an Assumption
                     --------------------
          Agreement, substantially in the form of Exhibit C hereto, dated
          as of the Second Borrowing Date and executed and delivered by
          Maxus, pursuant to which Maxus shall (among other things)
          expressly assume all of the obligations of YPF Acquisition under
          this Agreement and the other Basic Documents.

                    "Bankruptcy Code" shall mean the U.S. Federal
                     ---------------
          Bankruptcy Code of 1978, as amended from time to time.

                    "Base Rate" shall mean, for any day, a rate per annum
                     ---------
          equal to the higher of (a) the Federal Funds Rate for such day


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<PAGE>
                                        - 3 -

          plus 1/2 of 1% and (b) the Prime Rate for such day.  Each change
          in any interest rate provided for herein based upon the Base Rate
          resulting from a change in the Base Rate shall take effect at the
          time of such change in the Base Rate.

                    "Base Rate Loans" shall mean Loans that bear interest
                     ---------------
          at rates based upon the Base Rate.

                    "Basic Documents" shall mean, collectively, this
                     ---------------
          Agreement, the Notes, the Pledge Agreement and the Assumption
          Agreement.

                    "Business Day" shall mean any day (a) on which
                     ------------
          commercial banks are not authorized or required to close in New
          York City and (b) if such day relates to a borrowing of, a
          payment or prepayment of principal of or interest on, a
          Conversion of or into, or an Interest Period for, a Eurodollar
          Loan or a notice by the Company with respect to any such
          borrowing, payment, prepayment, Conversion or Interest Period,
          that is also a day on which dealings in Dollar deposits are
          carried out in the London interbank market.

                    "Capital Lease Obligations" shall mean, for any Person,
                     -------------------------
          all obligations of such Person to pay rent or other amounts under
          a lease of (or other agreement conveying the right to use)
          Property to the extent such obligations are required to be
          classified and accounted for as a capital lease on a balance
          sheet of such Person under GAAP, and, for purposes of this
          Agreement, the amount of such obligations shall be the
          capitalized amount thereof, determined in accordance with GAAP.

                    "Chase" shall mean The Chase Manhattan Bank (National
                     -----
          Association).

                    "Code" shall mean the U.S. Internal Revenue Code of
                     ----
          1986, as amended from time to time.

                    "Commission" shall mean the Securities and Exchange
                     ----------
          Commission, or any regulatory body that succeeds to the functions
          thereof.

                    "Commitment" shall mean, as to each Lender, the
                     ----------
          obligation of such Lender to make Loans pursuant to Section 2.01
          hereof in an aggregate principal amount at any one time
          outstanding up to but not exceeding (a) in the case of a Lender
          that is a party to this Agreement as of the date hereof, the
          amount set opposite such Lender's name on the signature pages
          hereof under the caption "Commitment" or (b) in the case of any
          other Lender, the aggregate amount of the Commitments of such
          Lender acquired by it pursuant to Section 12.06(b) hereof (in
          each case, as the same may be reduced at any time or from time to


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<PAGE>
                                        - 4 -

          time pursuant to Section 2.03 hereof or increased or reduced from
          time to time pursuant to said Section 12.06(b)).  The original
          aggregate principal amount of the Commitments is $550,000,000.  

                    "Commitment Termination Date" shall mean June 12, 1995.
                     ---------------------------

                    "Commodity Hedging Agreement" shall mean, for any
                     ---------------------------
          Person, an agreement or arrangement between such Person and one
          or more financial institutions or other entities providing for
          the transfer or mitigation of risks of fluctuations in the prices
          of hydrocarbons, either generally or under specific
          circumstances.

                    "Company" shall mean (a) at all times up to the time
                     -------
          the Merger is consummated, YPF Acquisition and (b) at all times
          thereafter, Maxus (as successor by merger to YPF Acquisition).

                    "Continue", "Continuation" and "Continued" shall refer
                     --------    ------------       ---------
          to the continuation pursuant to Section 2.07 hereof of a
          Eurodollar Loan from one Interest Period to the next Interest
          Period.

                    "Control Transfer Date" shall mean the earlier to occur
                     ---------------------
          of (a) the date that the designees of YPF have been elected to,
          and constitute a majority of, the Board of Directors of Maxus
          pursuant to Section 1.4 of the Merger Agreement and (b) the
          Merger Closing Date.

                    "Convert", "Conversion" and "Converted" shall refer to
                     -------    ----------       ---------
          a conversion pursuant to Section 2.07 hereof of one Type of Loans
          into another Type of Loans, which may be accompanied by the
          transfer by a Lender (at its sole discretion) of a Loan from one
          Applicable Lending Office to another.

                    "Default" shall mean an Event of Default or an event
                     -------
          that with notice or lapse of time or both would become an Event
          of Default.

                    "Dividend Payment" shall mean, with respect to any
                     ----------------
          Person, dividends (in cash, Property or obligations) on, or other
          payments or distributions on account of, or the setting apart of
          money for a sinking or other analogous fund for, or the purchase,
          redemption, retirement or other acquisition of, any shares of any
          class of stock of such Person or of any warrants, options or
          other rights to acquire the same (or to make any payments to any
          other Person, such as "phantom stock" payments, where the amount
          thereof is calculated with reference to the fair market or equity
          value of such Person or any of its Subsidiaries), but excluding
          dividends payable solely in shares of common stock of such
          Person.



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<PAGE>
                                        - 5 -

                    "Dollars" and "$" shall mean lawful money of the United
                     -------       -
          States of America.

                    "Equity Rights" shall mean, with respect to any Person,
                     -------------
          any subscriptions, options, warrants, commitments, preemptive
          rights or agreements of any kind (including, without limitation,
          any stockholders' or voting trust agreements) for the issuance,
          sale, registration or voting of, or securities convertible into
          or exchangeable for, any additional shares of capital stock of
          any class, or partnership or other ownership interests of any
          type in, such Person.

                    "ERISA" shall mean the Employee Retirement Income
                     -----
          Security Act of 1974, as amended from time to time.

                    "ERISA Affiliate" shall mean any corporation or trade
                     ---------------
          or business that is a member of any group of organizations
          (i) described in Section 414(b) or (c) of the Code of which the
          Company is a member and (ii) solely for purposes of potential
          liability under Section 302(c)(11) of ERISA and
          Section 412(c)(11) of the Code and the lien created under
          Section 302(f) of ERISA and Section 412(n) of the Code, described
          in Section 414(m) or (o) of the Code of which the Company is a
          member.

                    "Eurodollar Base Rate" shall mean, with respect to any
                     --------------------
          Eurodollar Loan for any Interest Period therefor, the arithmetic
          mean (rounded upwards, if necessary, to the nearest 1/16 of 1%),
          as determined by the Agent, of the rates per annum quoted by the
          respective Reference Lenders at approximately 11:00 a.m. London
          time (or as soon thereafter as practicable) on the date two
          Business Days prior to the first day of such Interest Period for
          the offering by the respective Reference Lenders to leading banks
          in the London interbank market of Dollar deposits having a term
          comparable to such Interest Period and in an amount comparable to
          the principal amount of the Eurodollar Loan to be made by the
          respective Reference Lenders for such Interest Period.  If any
          Reference Lender is not participating in any Eurodollar Loans
          during any Interest Period therefor, the Eurodollar Base Rate for
          such Loans for such Interest Period shall be determined by
          reference to the amount of such Loans that such Reference Lender
          would have made or had outstanding had it been participating in
          such Loan during such Interest Period.

                    "Eurodollar Loans" shall mean Loans that bear interest
                     ----------------
          at rates based on rates referred to in the definition of
          "Eurodollar Base Rate" in this Section 1.01.

                    "Eurodollar Rate" shall mean, for any Eurodollar Loan
                     ---------------
          for any Interest Period therefor, a rate per annum (rounded
          upwards, if necessary, to the nearest 1/100 of 1%) determined by


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<PAGE>
                                        - 6 -

          the Agent to be equal to the Eurodollar Base Rate for such Loan
          for such Interest Period divided by 1 minus the Reserve
          Requirement (if any) for such Loan for such Interest Period.

                    "Event of Default" shall have the meaning assigned to
                     ----------------
          such term in Section 10 hereof.

                    "Exchange Act" shall mean the Securities and Exchange
                     ------------
          Act of 1934, as amended from time to time and the rules and
          regulations promulgated by the Commission thereunder.

                    "Federal Funds Rate" shall mean, for any day, the rate
                     ------------------
          per annum (rounded upwards, if necessary, to the nearest 1/100 of
          1%) equal to the weighted average of the rates on overnight
          Federal funds transactions with members of the Federal Reserve
          System arranged by Federal funds brokers on such day, as
          published by the Federal Reserve Bank of New York on the Business
          Day next succeeding such day, provided that (a) if the day for
                                        --------
          which such rate is to be determined is not a Business Day, the
          Federal Funds Rate for such day shall be such rate on such
          transactions on the next preceding Business Day as so published
          on the next succeeding Business Day and (b) if such rate is not
          so published for any Business Day, the Federal Funds Rate for
          such Business Day shall be the average rate charged to Chase on
          such Business Day on such transactions as determined by the
          Agent.

                    "GAAP" shall mean generally accepted accounting
                     ----
          principles as in effect from time to time as set forth in the
          opinions, statements and pronouncements of the Accounting
          Principles Board of the American Institute of Certified Public
          Accountants, the Financial Accounting Standards Board and such
          other Persons who shall be approved by a significant segment of
          the accounting profession and concurred in by the independent
          certified public accountants certifying any audited financial
          statements delivered hereunder.

                    "Guarantee" shall mean a guarantee, an endorsement, a
                     ---------
          contingent agreement to purchase or to furnish funds for the
          payment or maintenance of, or otherwise to be or become
          contingently liable under or with respect to, the Indebtedness,
          other obligations, net worth, working capital or earnings of any
          Person, or a guarantee of the payment of dividends or other
          distributions upon the stock or equity interests of any Person,
          or an agreement to purchase, sell or lease (as lessee or lessor)
          Property, products, materials, supplies or services primarily for
          the purpose of enabling a debtor to make payment of such debtor's
          obligations or an agreement to assure a creditor against loss,
          and including, without limitation, causing a bank or other
          financial institution to issue a letter of credit or other
          similar instrument for the benefit of another Person, but


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<PAGE>
                                        - 7 -

          excluding endorsements for collection or deposit in the ordinary
          course of business.  The terms "Guarantee" and "Guaranteed" used
                                          ---------       ----------
          as a verb shall have a correlative meaning.

                    "Guaranteed Obligations" shall have the meaning
                     ----------------------
          assigned to such term in Section 6.01 hereof.

                    "Indebtedness" shall mean, for any Person (without
                     ------------
          duplication):  (a) obligations created, issued or incurred by
          such Person for borrowed money (whether by loan, the issuance and
          sale of debt securities or the sale of Property to another Person
          subject to an understanding or agreement, contingent or
          otherwise, to repurchase such Property from such Person);
          (b) obligations of such Person to pay the deferred purchase or
          acquisition price of Property or services, other than trade
          accounts payable (other than for borrowed money) arising, and
          accrued expenses incurred, in the ordinary course of business;
          (c) Indebtedness of others secured by a Lien on the Property of
          such Person, whether or not the respective indebtedness so
          secured has been assumed by such Person; (d) obligations of such
          Person in respect of letters of credit or similar instruments
          issued or accepted by banks and other financial institutions for
          account of such Person; (e) Capital Lease Obligations of such
          Person; (f) the unearned balance of any advance payment received
          by such Person under any contract to be performed in excess of
          $5,000,000 in the aggregate; and (g) Indebtedness of others
          Guaranteed by such Person.

                    "Independent Petroleum Engineer" shall mean any firm of
                     ------------------------------
          independent petroleum engineers selected by the Company and
          satisfactory to the Majority Lenders.

                    "Information Statement" shall mean the Information
                     ---------------------
          Statement, if required, to be filed by Maxus with the Commission
          with respect to the Acquisition pursuant to Rule 14c-2 of the
          Exchange Act, together with all exhibits and schedules thereto.

                    "Initial Borrowing Date" shall mean the date on which
                     ----------------------
          the Initial Loans are or shall have been made.

                    "Initial Loans" shall mean the Loans made upon the
                     -------------
          satisfaction or waiver of the conditions precedent set forth in
          Section 7.01 and 7.03 hereof.

                    "Interest Payment Date" shall mean the date three
                     ---------------------
          months after the Initial Borrowing Date or, if such date is not a
          Business Day, the immediately preceding Business Day.

                    "Interest Period" shall mean, with respect to any
                     ---------------
          Eurodollar Loan, each period commencing on the date such
          Eurodollar Loan is made or Converted from a Base Rate Loan or the


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<PAGE>
                                        - 8 -

          last day of the next preceding Interest Period for such Loan and
          ending on the numerically corresponding day in the first calendar
          month thereafter, as the Company may select as provided in
          Section 4.05 hereof, except that each Interest Period that
          commences on the last Business Day of a calendar month (or 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. 
          Notwithstanding the foregoing:  (i) no Interest Period may end
          after June 12, 1995; (ii) each Interest Period that would
          otherwise end on a day that is not a Business Day shall end on
          the next succeeding Business Day (or, if such next succeeding
          Business Day falls in the next succeeding calendar month, on the
          next preceding Business Day); (iii) no Interest Period shall have
          a duration of less than one month (notwithstanding clause (i)
          above) and, if the Interest Period for any Eurodollar Loan would
          otherwise be a shorter period, such Loan shall not be available
          as a Eurodollar Loan hereunder for such period.

                    "Interest Rate Protection Agreement" shall mean, for
                     ----------------------------------
          any Person, an interest rate swap, cap or collar agreement or
          similar arrangement between such Person and one or more financial
          institutions providing for the transfer or mitigation of interest
          risks, either generally or under specific contingencies.

                    "Investment" shall mean, for any Person:  (a) the
                     ----------
          acquisition (whether for cash, Property, services or securities
          or otherwise) of capital stock, bonds, notes, debentures,
          partnership or other ownership interests or other securities of
          any other Person or any agreement to make any such acquisition
          (including, without limitation, any "short sale" or any sale of
          any securities at a time when such securities are not owned by
          the Person entering into such sale); (b) the making of any
          deposit with, or advance, loan or other extension of credit to,
          any other Person (including the purchase of Property from another
          Person subject to an understanding or agreement, contingent or
          otherwise, to resell such Property to such Person), but excluding
          any such advance, loan or extension of credit having a term not
          exceeding 90 days arising in connection with the sale of
          inventory or supplies or the providing of oil and gas operating,
          producing or marketing services by such Person in the ordinary
          course of business; and (c) the entering into of any Guarantee
          of, or other contingent obligation with respect to, Indebtedness
          or other liability of any other Person and (without duplication)
          any amount committed to be advanced, lent or extended to such
          other Person (other than Guarantees included in the definition of
          Indebtedness in this Section 1.01).

                    "Legal Requirements" shall have the meaning assigned to
                     ------------------
          such term in Section 8.03(b) hereof.



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<PAGE>
                                        - 9 -

                    "Lien" shall mean, with respect to any Property, any
                     ----
          assignment in trust, mortgage, lien, pledge, charge, fiduciary or
          security assignment, security interest or encumbrance of any kind
          in respect of such Property (including, without limitation, any
          Production Payment, advance payment or similar arrangement with
          respect to minerals in place).  For purposes of the foregoing, a
          Person shall be deemed to own subject to a Lien any Property that
          it has acquired or holds subject to the interest of a vendor or
          lessor under any conditional sale agreement, capital lease or
          other title retention agreement (other than an operating lease)
          relating to such Property.

                    "Loans" shall mean the loans provided for by
                     -----
          Section 2.01 hereof, which may be Base Rate Loans and/or
          Eurodollar Loans.

                    "Majority Lenders" shall mean Lenders holding at least
                     ----------------
          66 2/3% of the aggregate amount of the Commitments or, if the
          Commitments shall have terminated, Lenders holding at least
          66 2/3% of the aggregate unpaid principal amount of the Loans.

                    "Margin Stock" shall mean "margin stock" within the
                     ------------
          meaning of Regulations U and X.

                    "Material Adverse Effect" shall mean a material adverse
                     -----------------------
          effect on any of:  (a) the condition (financial or otherwise),
          business, operations, assets, nature of assets or liabilities of
          any of (i) YPF and its Subsidiaries taken as a whole (including,
          without limitation, the investment ratings of any of
          YPF's securities being downgraded or being put on "credit watch"
          or "credit review" with negative implications by any nationally
          recognized statistical rating organization), (ii) Maxus and its
          Subsidiaries taken as a whole, (iii) Midgard or any of its
          Subsidiaries (other than any of such Subsidiaries all of the
          capital stock or other ownership interests of or in which are to
          be transferred to Maxus or other Subsidiaries of Maxus prior to
          the Merger Closing Date) or (iv) Maxus Indonesia, Maxus Java or
          Maxus Sumatra or any of their respective Subsidiaries (including,
          without limitation, the investment ratings of the Republic of
          Indonesia being downgraded or being put on "credit watch" or
          "credit review" with negative implications by a nationally
          recognized statistical rating organization at any time after the
          consummation of the Merger); (b) the ability of any of the
          Persons referred to in clause (a) above which is or is intended
          to be a party to any of the agreements and other documents
          providing for or otherwise relating to any of the Acquisition
          Financing Transactions to pay and perform its obligations under
          any of such documents when required to be paid or performed;
          (c) the validity or enforceability of any of such documents;
          (d) any of the rights and remedies of the lenders (or the agent)
          under any of such documents; or (e) the timely payment of any of


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<PAGE>
                                        - 10 -

          the loans and other extensions of credit or other amounts payable
          to the lenders under any of such documents.

                    "Material Subsidiary" shall mean (a) any of the
                     -------------------
          Refinancing Subsidiaries and their respective Subsidiaries,
          (b) any of Maxus International Energy Corporation and (c) any
          other Subsidiary of Maxus the assets of which (determined on a
          consolidated basis with any consolidated Subsidiaries of such
          Subsidiary) were equal to or more than 2 1/2% of the consolidated
          total assets of Maxus and its consolidated Subsidiaries at the
          end of the preceding fiscal year of Maxus.

                    "Maturity Date" shall mean the earlier of (a) June 12,
                     -------------
          1995 and (b) the Merger Closing Date.

                    "Maxus" shall mean Maxus Energy Corporation, a Delaware
                     -----
          corporation.

                    "Maxus Indonesia" shall mean Maxus Indonesia, Inc., a
                     ---------------
          Delaware corporation and a wholly-owned subsidiary of Maxus.

                    "Maxus Indonesia Group" shall mean Maxus Indonesia and
                     ---------------------
          its Subsidiaries.

                    "Maxus Indonesia Refinancing Facility" shall mean the
                     ------------------------------------
          loans in an aggregate amount up to $175,000,000 to be made
          available to Maxus Java and Maxus Sumatra as contemplated by Term
          Sheet - Java/Sumatra Facility attached as Schedule VI hereto, the
          proceeds of which are to be used to pay or prepay a portion of
          the Loans.  

                    "Maxus Java" shall mean Maxus Northwest Java, Inc., a
                     ----------
          Delaware corporation and a Wholly Owned Subsidiary of Maxus.

                    "Maxus Material Adverse Effect" shall mean a material
                     -----------------------------
          adverse effect on any of:  (a) the financial condition, business
          or operations of Maxus and its Subsidiaries taken as a whole;
          (b) the ability of Maxus or any of the Refinancing Subsidiaries
          or any Subsidiary of any of the Refinancing Subsidiaries (other
          than any such Subsidiary all of the capital stock or other
          ownership interests of or in which are to be transferred to Maxus
          or other Subsidiaries of Maxus prior to the Merger Closing Date)
          to perform any of its payment or any of its other material
          obligations under any of the Basic Documents to which it is or is
          intended to be a party or the Refinancing Facilities (including
          the agreements and other documents providing for or relating to
          such Refinancing Facilities to which it is or is intended to be a
          party) or, in the case of Maxus, any of its material obligations
          under the Merger Agreement; (c) the validity or enforceability of
          any of the obligations referred to in clause (b) above; (d) the
          ability of the lenders (or the agent) under any of the documents


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<PAGE>
                                        - 11 -

          referred to in clause (b) above to enforce their respective
          rights and remedies against any of the Persons referred to in
          clause (b) above under any of such documents to which such Person
          is or is intended to be a party; or (e) the timely payment of any
          of the payment obligations referred to in clause (b) above.

                    "Maxus Preferred Shares" shall mean, collectively, the
                     ----------------------
          $4.00 Cumulative Convertible Preferred Stock par value $1.00 per
          share, the $9.75 Cumulative Convertible Preferred Stock par value
          $1.00 per share, and the $2.50 Cumulative Preferred Stock par
          value $1.00 per share, in each case, of Maxus.

                    "Maxus Public Debt Documents" shall mean, collectively,
                     ---------------------------
          (a) the Indenture dated as of November 1, 1990 between Maxus and
          Chemical Bank, as trustee and the Securities (as defined therein)
          issued thereunder, (b) the Indenture date as of April 1, 1978
          between Diamond Shamrock Corporation (as predecessor in interest
          to Maxus) and Chemical Bank, as trustee, and the Debentures (as
          defined therein) issued thereunder, (c) the Indenture dated as of
          May 1, 1983 between Diamond Shamrock Corporation (as predecessor
          in interest to Maxus) and NationsBank, N.A., as trustee, and the
          Securities (as defined therein) issued thereunder, (d) the
          Indenture dated as of November 1, 1985 between Maxus and
          NationsBank, N.A., as trustee, and the Securities (as defined
          therein) issued thereunder, and (e) the Indenture dated as of
          April 1, 1988 between Maxus and Chemical Bank, as trustee, and
          the Securities (as defined therein) issued thereunder, in each
          case, as such agreements and instruments have heretofore and
          shall, subject to Section 9.18 hereof, be hereafter modified and
          supplemented and in effect from time to time.

                    "Maxus Shares" shall mean shares of common stock of
                     ------------
          Maxus, par value $1.00.

                    "Maxus Sumatra" shall mean Maxus Southeast Sumatra
                     -------------
          Inc., a Delaware corporation and a Wholly Owned Subsidiary of
          Maxus.

                    "Merger" shall mean the merger of YPF Acquisition with
                     ------
          and into Maxus pursuant to the Merger Agreement.

                    "Merger Agreement" shall mean the Agreement of Merger
                     ----------------
          dated as of February 28, 1995 among YPF, YPF Acquisition and
          Maxus, as the same shall, subject to Section 9.18 hereof, be
          modified and supplemented and in effect from time to time.

                    "Merger Closing Date" shall mean the date on which the
                     -------------------
          Merger shall become effective.

                    "Midgard" shall mean Midgard Energy Company, a Delaware
                     -------
          corporation and a Wholly Owned Subsidiary of Maxus.


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<PAGE>
                                        - 12 -

                    "Midgard Group" shall mean Midgard and its
                     -------------
          Subsidiaries.

                    "Midgard Refinancing Facility" shall mean the loans in
                     ----------------------------
          an aggregate amount up to $250,000,000 to be made available to
          Midgard as contemplated by Term Sheet - Midgard Facility attached
          as Schedule V hereto, the proceeds of which are to be used to pay
          or prepay a portion of the Loans. 

                    "Multiemployer Plan" shall mean a multiemployer plan
                     ------------------
          defined as such in Section 3(37) of ERISA to which contributions
          have been made by the Company or any ERISA Affiliate and that is
          covered by Title IV of ERISA.

                    "Notes" shall mean the promissory notes provided for by
                     -----
          Section 2.06 hereof and all promissory notes delivered in
          substitution or exchange therefor, in each case as the same shall
          be modified and supplemented and in effect from time to time.

                    "Obligors" shall mean, collectively, the Company and
                     --------
          YPF.

                    "Offer to Purchase" shall mean the Offer to Purchase
                     -----------------
          For Cash All Outstanding Shares of Maxus at $5.50 Net Per Share
          by YPF Acquisition dated March 3, 1995 made by YPF Acquisition in
          connection with the Acquisition.

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

                    "Permitted Investments" shall mean:  (a) direct
                     ---------------------
          obligations of the United States of America, or of any agency
          thereof, or obligations guaranteed as to principal and interest
          by the United States of America, or of any agency thereof, in
          either case maturing not more than 90 days from the date of
          acquisition thereof; (b) certificates of deposit issued by any
          bank or trust company organized under the laws of the United
          States of America or any state thereof and having capital,
          surplus and undivided profits of at least $500,000,000, maturing
          not more than 90 days from the date of acquisition thereof; and
          (c) commercial paper rated A-1 or better or P-1 by Standard &
          Poor's Corporation or Moody's Investors Services, Inc.,
          respectively, maturing not more than 90 days from the date of
          acquisition thereof; in each case so long as the same (x) provide
          for the payment of principal and interest (and not principal
          alone or interest alone) and (y) are not subject to any
          contingency regarding the payment of principal or interest.

                    "Permitted Maxus Investments" shall mean Permitted
                     ---------------------------
          Investments referred to in clause (a) of the definition of such


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<PAGE>
                                        - 13 -

          term in Section 1.01 hereof (without regard to the limitation on
          maturity specified therein), other readily marketable short-term
          investments held by Maxus and its Subsidiaries on the date hereof
          and other readily marketable short-term investments having the
          same or more favorable credit and other characteristics as such
          short-term investments so held on the date hereof.

                    "Person" shall mean any individual, corporation,
                     ------
          company, voluntary association, partnership, joint venture,
          trust, unincorporated organization or government (or any agency,
          instrumentality or political subdivision thereof).

                    "Plan" shall mean an employee benefit or other plan
                     ----
          established or maintained by the Company or any ERISA Affiliate
          and that is covered by Title IV of ERISA, other than a
          Multiemployer Plan.

                    "Pledge Agreement" shall mean a Pledge Agreement
                     ----------------
          substantially in the form of Exhibit B hereto between YPF and the
          Agent, as the same shall be modified and supplemented and in
          effect from time to time.

                    "Post-Default Rate" shall mean, in respect of (a) any
                     -----------------
          principal of any Loan that is not paid when due (whether at
          stated maturity, by acceleration or otherwise), a rate per annum
          during the period from and including the due date to but
          excluding the date on which such amount is paid in full equal to
          3 1/2% plus the Base Rate as in effect from time to time plus the
                 ----                                              ----
          Applicable Margin for Base Rate Loans (provided that, if the
                                                 --------
          amount so in default is principal of a Eurodollar Loan and the
          due date thereof is a day other than the last day of the Interest
          Period therefor, the "Post-Default Rate" for such principal shall
          be, for the period from and including such due date to but
          excluding the last day of such Interest Period, 3 1/2% plus the
                                                                 ----
          interest rate for such Loan as provided in Section 3.02(b) hereof
          and (b) interest on any Loan that is not paid when due (whether
          at stated maturity, by acceleration or otherwise), a rate per
          annum during the period from and including the due date to but
          excluding the date on which such amount is paid in full equal to
          3 1/2% plus the Base Rate as in effect from time to time plus the
                 ----                                              ----
          Applicable Margin for Base Rate Loans.

                    "Prime Rate" shall mean the rate of interest from time
                     ----------
          to time announced by Chase at the Principal Office as its prime
          commercial lending rate.

                    "Principal Office" shall mean the principal office of
                     ----------------
          Chase, located on the date hereof at 1 Chase Manhattan Plaza, New
          York, New York 10081.




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<PAGE>
                                        - 14 -

                    "Proceeds Production Payments" shall mean production
                     ----------------------------
          payment obligations of any Person payable in Dollars or other
          currencies representing a specified share of proceeds received
          from specific hydrocarbon Properties, together with all
          undertakings and obligations in connection therewith.

                    "Process Agent" shall have the meaning assigned to such
                     -------------
          term in Section 12.10(c) hereof.

                    "Production Payments" shall mean, collectively,
                     -------------------
          Proceeds Production Payments and Volumetric Production Payments.

                    "Property" shall mean any right or interest in or to
                     --------
          property of any kind whatsoever, whether real, personal or mixed
          and whether tangible or intangible.

                    "Proved Reserves" shall mean reserves (to the extent of
                     ---------------
          the net interest of Maxus and its Subsidiaries therein) comprised
          of quantities of hydrocarbons which geologic and engineering data
          demonstrate with reasonable certainty to be recoverable in future
          years from known reservoirs under existing economic and operating
          conditions.  

                    "Proxy Materials" shall mean all proxy materials, if
                     ---------------
          any, relating to the Acquisition and distributed to the
          shareholders of Maxus.

                    "Reference Lenders" shall mean Chase and such other
                     -----------------
          Lenders as may be agreed by Chase and the Company from time to
          time (but in no event shall there be more than three Reference
          Lenders at any time) or their respective Applicable Lending
          Offices, as the case may be.

                    "Refinancing Balance Sheets" shall have the meaning
                     --------------------------
          assigned to such term in Section 9.01(g) hereof.

                    "Refinancing Facilities" shall mean, collectively, the
                     ----------------------
          Midgard Refinancing Facility and the Maxus Indonesia Refinancing
          Facility.  

                    "Refinancing Subsidiaries" shall mean, collectively,
                     ------------------------
          Midgard, Maxus Java, Maxus Sumatra and Maxus Indonesia.

                    "Regulation A", "Regulation D", "Regulation U" and
                     -------------------------------------------------
          "Regulation X" shall mean, respectively, Regulations A, D, U and
          -------------
          X of the Board of Governors of the Federal Reserve System (or any
          successor), as the same may be modified and supplemented and in
          effect from time to time.

                    "Regulatory Change" shall mean, with respect to any
                     -----------------
          Lender, any change after the date hereof in U.S. Federal, state


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<PAGE>
                                        - 15 -

          or foreign law or regulations (including, without limitation,
          Regulation D) or the adoption or making after such date of any
          interpretation, directive or request applying to a class of banks
          including such Lender of or under any Federal, state or foreign
          law or regulations (whether or not having the force of law and
          whether or not failure to comply therewith would be unlawful) by
          any court or governmental or monetary authority charged with the
          interpretation or administration thereof.

                    "Relevant Information" shall mean information relating
                     --------------------
          to any of the Acquisition, the Acquisition Financing
          Transactions, YPF and its Subsidiaries and Maxus and its
          Subsidiaries.

                    "Relevant Parties" shall have the meaning assigned to
                     ----------------
          such term in Section 10(e) hereof.

                    "Relevant Subsidiaries" shall mean YPF Acquisition and,
                     ---------------------
          on and after the Control Transfer Date, Maxus and the Material
          Subsidiaries.

                    "Reserve Requirement" shall mean, for any Interest
                     -------------------
          Period for any Eurodollar Loan, the average maximum rate at which
          reserves (including, without limitation, any marginal,
          supplemental or emergency reserves) are required to be maintained
          during such Interest Period under Regulation D by member banks of
          the Federal Reserve System in New York City with deposits
          exceeding one billion Dollars against "Eurocurrency liabilities"
          (as such term is used in Regulation D).  Without limiting the
          effect of the foregoing, the Reserve Requirement shall include
          any other reserves required to be maintained by such member banks
          by reason of any Regulatory Change with respect to (i) any
          category of liabilities that includes deposits by reference to
          which the Eurodollar Base Rate is to be determined as provided in
          the definition of "Eurodollar Base Rate" in this Section 1.01 or
          (ii) any category of extensions of credit or other assets that
          includes Eurodollar Loans.

                    "SEC Reports" shall mean, with respect to any Person,
                     -----------
          any regular periodic reports or any reports on Form 6-K or
          Form 8-K (or any successor forms thereto) filed by such Person
          with the Commission.  

                    "Second Borrowing Date" shall mean the date on which
                     ---------------------
          the Second Loans are or shall have been made.

                    "Second Loans" shall mean the Loans made upon the
                     ------------
          satisfaction or waiver of the conditions precedent set forth in
          Sections 7.02 and 7.03 hereof.




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<PAGE>
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                    "Subsidiary" shall mean, with respect to any Person,
                     ----------
          any corporation, partnership or other entity of which at least a
          majority of the securities or other ownership interests having by
          the terms thereof ordinary voting power to elect a majority of
          the board of directors or other persons performing similar
          functions of such corporation, partnership or other entity
          (irrespective of whether or not at the time securities or other
          ownership interests of any other class or classes of such
          corporation, partnership or other entity shall have or might have
          voting power by reason of the happening of any contingency) is at
          the time directly or indirectly owned or controlled by such
          Person or one or more Subsidiaries of such Person or by such
          Person and one or more Subsidiaries of such Person.

                    "Tender Offer" shall mean the offer by YPF Acquisition
                     ------------
          to purchase Maxus Shares for cash pursuant to the Tender Offer
          Documents.

                    "Tender Offer Closing Date" shall mean the date of the
                     -------------------------
          initial purchase by YPF Acquisition of the Maxus Shares tendered
          pursuant to the Tender Offer.

                    "Tender Offer Documents" shall mean the Offer to
                     ----------------------
          Purchase and the Tender Offer Statement on Schedule 14D-1 filed
          by YPF and YPF Acquisition with the Commission, the
          Schedule 14D-9 filed by Maxus with respect to the Offer to
          Purchase, and all amendments, exhibits and schedules thereto and
          related documents distributed to the shareholders of Maxus or
          filed by YPF, YPF Acquisition or Maxus with the Commission in
          connection with the Acquisition, in each case, prior to the date
          of this Agreement.

                    "Transaction Costs" shall mean all costs and expenses
                     -----------------
          incurred by YPF and YPF Acquisition in connection with the
          Acquisition and the other transactions contemplated hereby to
          occur on or prior to the Initial Borrowing Date and the Second
          Borrowing Date (exclusive of amounts paid or payable in respect
          of Maxus Shares referred to in Sections 2.01(a)(i)(x) and
          2.01(b)(i) hereof); provided, however, that, at the election of
          the Obligors, "Transaction Costs" shall also include any so-
          called "golden parachute" payments to be made to former officers
          of Maxus, and/or "poison pill" payments under the Certificate of
          Incorporation of Maxus.

                    "Transaction Documents" shall mean the Acquisition
                     ---------------------
          Documents and the Basic Documents.

                    "Type" shall have the meaning assigned to such term in
                     ----
          Section 1.03 hereof.




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<PAGE>
                                        - 17 -

                    "Volumetric Production Payments" shall mean production
                     ------------------------------
          payment obligations payable in the form of hydrocarbons
          constituting a specified share of production from specific
          hydrocarbon Properties, together with all undertakings and
          obligations in connection therewith.

                    "Wholly Owned Subsidiary" shall mean, with respect to
                     -----------------------
          any Person, any corporation, partnership or other entity of which
          all of the equity securities or other ownership interests (other
          than, in the case of a corporation, directors' qualifying shares)
          are directly or indirectly owned or controlled by such Person or
          one or more Wholly Owned Subsidiaries of such Person or by such
          Person and one or more Wholly Owned Subsidiaries of such Person.

                    "YPF Acquisition Material Adverse Effect" shall mean a
                     ---------------------------------------
          material adverse effect on any of:  (a) the financial condition,
          business or operations of YPF Acquisition; (b) the ability of
          YPF Acquisition to perform any of its payment or any of its other
          material obligations under any of the Basic Documents to which it
          is or is intended to be a party or any of its material payment or
          other material obligations under either the Offer to Purchase or
          the Merger Agreement; (c) the validity or enforceability of any
          of the obligations referred to in clause (b) above; (d) the
          ability of the Lenders or the Agent under any of the documents
          referred to in clause (b) above to enforce their respective
          rights and remedies against YPF Acquisition under any of the
          Basic Documents to which it is or is intended to be a party; or
          (e) the timely payment of any of the payment obligations referred
          to in clause (b) above.

                    "YPF Affiliates" shall mean YPF and its Affiliates
                     --------------
          (other than the Company and its Subsidiaries).

                    "YPF Debt Documents" shall mean, collectively, (a) the
                     ------------------
          Indenture dated as of February 2, 1994 between YPF, The Bank of
          New York, as trustee, co-registrar and principal paying agent,
          and The Bank of New York S.A., as registrar and paying agent and
          the Securities (as defined therein) issued thereunder and (b) the
          Indenture dated as of October 7, 1994 between YPF, The Bank of
          New York, as trustee, co-registrar and principal paying agent and
          The Bank of New York S.A., as registrar and paying agent and the
          Debt Securities (as defined therein) issued thereunder and, in
          each case, as such agreements and instruments may be modified and
          supplemented and in effect from time to time.

                    "YPF Credit Agreement" shall mean the Trade Credit
                     --------------------
          Agreement dated as of April 5, 1995 between YPF, the lenders
          referred to therein and Chase as agent for said lenders, as such
          agreement shall be modified and supplemented and in effect from
          time to time.



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<PAGE>
                                        - 18 -

                    "YPF Material Adverse Effect" shall mean a material
                     ---------------------------
          adverse effect on any of:  (a) the financial condition, business
          or operations of YPF and its Subsidiaries taken as a whole;
          (b) the ability of YPF to perform any of its payment or any of
          its other material obligations under any of the Basic Documents
          or the Refinancing Facilities (including the agreements and other
          documents providing for or relating to such Refinancing
          Facilities) to which it is or is intended to be a party or any of
          its material payment or other material obligations under any of
          the other Transaction Documents to which it is or is intended to
          be a party; (c) the validity or enforceability of any of the
          obligations referred to in clause (b) above; or (d) the ability
          of the lenders (or the agent) under any of the documents referred
          to in clause (b) above to enforce their rights and remedies
          against YPF under any of such documents.

                    1.02  Accounting Terms and Determinations.  Except as
                          -----------------------------------
          otherwise expressly provided herein, all accounting terms used
          herein relating to Maxus and its Subsidiaries shall be
          interpreted, and all financial statements and certificates and
          reports as to financial matters relating to Maxus and its
          Subsidiaries required to be delivered to the Lenders hereunder
          shall be prepared, in accordance with GAAP.

                    1.03  Types of Loans.  Loans hereunder are
                          --------------
          distinguished by "Type".  The "Type" of a Loan refers to whether
          such Loan is a Base Rate Loan or a Eurodollar Loan, each of which
          constitutes a Type.

                    1.04  Copies of Documents.  Whenever this Agreement
                          -------------------
          provides that the Agent will distribute to the Lenders documents
          provided by either Obligor, such Obligor shall furnish to the
          Agent a copy of such document for each Lender.

                    Section 2.  Commitments, Loans, Notes and Prepayments.
                                -----------------------------------------

                    2.01  Loans.  Each Lender severally agrees, on the
                          -----
          terms and conditions of this Agreement, to make loans to the
          Company in Dollars on the Initial Borrowing Date and the Second
          Borrowing Date (but in no event after the Commitment Termination
          Date) in an aggregate principal amount up to but not exceeding
          the amount of the Commitment of such Lender (subject to the last
          sentence of this Section 2.01); provided that (a) the aggregate
                                          --------
          principal amount of the Loans made on the Initial Borrowing Date
          shall not exceed an amount equal to the excess of (i) the sum of
          (x) an amount equal to (A) the aggregate number of Maxus Shares
          tendered pursuant to the Offer to Purchase times (B) $5.50 plus
                                                     -----           ----
          (y) the aggregate amount of Transaction Costs to be paid by YPF
          and YPF Acquisition on or before (or within 30 days' after) the
          Initial Borrowing Date over (ii) $250,000,000 and (b) the
                                 ----
          aggregate principal amount of the Loans made on the Second


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<PAGE>
                                        - 19 -

          Borrowing Date shall not exceed an amount equal to the sum of
          (i) the aggregate amount of cash to be paid by YPF Acquisition
          pursuant to Section 2.4 of the Merger Agreement in respect of
          Maxus Shares that are converted into a right to receive cash as
          provided in Section 2.1.4 of the Merger Agreement upon the
          consummation of the Merger in an amount equal to $5.50 per share
          plus (ii) the aggregate amount of Transaction Costs to be paid by
          ----
          YPF and YPF Acquisition on or before (or within 30 days' after)
          the Second Borrowing Date (other than Transaction Costs referred
          to in clause (a)(i)(y)) above.  After the making of any Loans,
          the Company may Convert Loans of one Type into Loans of another
          Type (as provided in Section 2.07 hereof) or Continue Loans of
          one Type as Loans of the same Type (as provided in Section 2.07
          hereof); provided further that no more than four separate
                   -------- -------
          Interest Periods in respect of Eurodollar Loans from each Lender
          may be outstanding at any one time.  In the event that (I) the
          amount referred to in clause (a)(i)(x) of this Section 2.01 shall
          be greater than (II) the aggregate amount of cash paid by
          YPF Acquisition prior to the close of business on April 10, 1995
          for the purchase of Maxus Shares pursuant to the Offer to
          Purchase, the Company shall prepay the Loans on or before
          April 11, 1995 in accordance with the provisions of Section 2.07
          hereof in an aggregate principal amount equal to the excess of
          the amount specified in clause (I) above over the amount
          specified in clause (II) above (and shall hold the excess in the
          form of cash or cash equivalents until applied to the payment of
          the purchase price for Maxus Shares pursuant to the Offer to
          Purchase or such prepayment).  Subject to the terms and
          conditions of this Agreement, any principal of the Loans so
          prepaid may be reborrowed on the Second Borrowing Date.

                    2.02  Borrowings.  The Company shall give the Agent
                          ----------
          notice of each borrowing hereunder as provided in Section 4.05
          hereof.  Not later than 1:00 p.m. New York time on the date
          specified for each borrowing hereunder, each Lender shall make
          available the amount of the Loan or Loans to be made by it on
          such date to the Agent, at account number NYAO-DI-900-9-000002
          maintained by the Agent with Chase at the Principal Office, in
          immediately available funds, for 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 of the Company maintained with Chase at the Principal
          Office designated by the Company.

                    2.03  Changes of Commitments.
                          ----------------------

                    (a)  The Company shall have the right at any time or
          from time to time to terminate or reduce the aggregate unused
          amount of the Commitments; provided that (x) the Company shall
                                     --------
          give notice of each such termination or reduction as provided in


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<PAGE>
                                        - 20 -

          Section 4.05 hereof and (y) each partial reduction shall be in an
          aggregate amount at least equal to $10,000,000 (or a larger
          multiple of $1,000,000).

                    (b)  Any portion of the Commitments not used on the
          Second Borrowing Date shall be automatically terminated.

                    (c)  The Commitments once terminated or reduced may not
          be reinstated.

                    2.04  Lending Offices.  The Loans of each Type made by
                          ---------------
          each Lender shall be made and maintained at such Lender's
          Applicable Lending Office for Loans of such Type.

                    2.05  Several Obligations; Remedies Independent.  The
                          -----------------------------------------
          failure of any Lender to make any Loan to be made by it on the
          date specified therefor shall not relieve any other Lender of its
          obligation to make its Loan on such date, but neither any Lender
          nor the Agent shall be responsible for the failure of any other
          Lender to make a Loan to be made by such other Lender, and
          (except as otherwise provided in Section 4.06 hereof) no Lender
          shall have any obligation to the Agent or any other Lender for
          the failure by such Lender to make any Loan required to be made
          by such Lender.  The amounts payable by the Company at any time
          hereunder and under the Notes to each Lender shall be a separate
          and independent debt and each Lender shall be entitled to protect
          and enforce its rights arising out of this Agreement and the
          Notes, and, to the extent permitted by law, it shall not be
          necessary for any other Lender or the Agent to consent to, or be
          joined as an additional party in, any proceedings for such
          purposes, provided that in no event may the obligations hereunder
          and under the Notes be accelerated except in accordance with
          Section 10 hereof.

                    2.06  Notes.
                          -----

                    (a)  The Loans made by each Lender shall be evidenced
          by a single promissory note of the Company substantially in the
          form of Exhibit A hereto, dated the date hereof, payable to such
          Lender in a principal amount equal to the amount of its
          Commitment as originally in effect and otherwise duly completed.

                    (b)  The date, amount, Type, interest rate and duration
          of Interest Period (if applicable) of each Loan made by each
          Lender to the Company, and each payment made on account of the
          principal thereof, shall be recorded by such Lender on its books
          and, prior to any transfer of the Note held by it, endorsed by
          such Lender on the schedule attached to such Note or any
          continuation thereof; provided that the failure of such Lender to
                                --------
          make any such recordation or endorsement shall not affect the
          obligations of the Company to make a payment when due of any


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<PAGE>
                                        - 21 -

          amount owing hereunder or under such Note in respect of the
          Loans.

                    (c)  No Lender shall be entitled to have its Note
          substituted or exchanged for any reason, or subdivided for
          promissory notes of lesser denominations, except in connection
          with a permitted assignment of all or any portion of such
          Lender's Commitment, Loans and Note pursuant to Section 12.06
          hereof or a required assignment of all of such Lender's Loans as
          contemplated by Section 5.07 hereof (and (x) if requested by any
          Lender, or in connection with any such required assignment, the
          Company agrees to so exchange any Note and (y) promptly following
          the delivery to any Lender of replacement Note(s), such Lender
          (if such Lender is an assigning Lender) agrees to deliver to the
          Company such Lender's existing Note marked canceled).

                    2.07  Prepayments and Conversions or Continuations of
                          -----------------------------------------------
          Loans.  Subject to Sections 2.01 and 4.04 hereof, the Company
          -----
          shall have the right to prepay Loans, or to Convert Loans of one
          Type into Loans of another Type or Continue Loans of one Type as
          Loans of the same Type, at any time or from time to time,
          provided that:  (a) the Company shall give the Agent notice of
          --------
          each such prepayment, Conversion or Continuation as provided in
          Section 4.05 hereof (and, upon the date specified in any such
          notice of prepayment, the amount to be prepaid shall become due
          and payable hereunder) and (b) Eurodollar Loans may be prepaid or
          Converted only on the last day of an Interest Period for such
          Loans.  Notwithstanding the foregoing, and without limiting the
          rights and remedies of the Lenders under Section 10 hereof, in
          the event that any Event of Default shall have occurred and be
          continuing, the Agent may (and at the request of the Majority
          Lenders shall) suspend the right of the Company to Convert any
          Loan into a Eurodollar Loan, or to Continue any Loan as a
          Eurodollar Loan, in which event all Loans shall be Converted (on
          the last day(s) of the respective Interest Periods therefor) or
          Continued, as the case may be, as Base Rate Loans.

                    Section 3.  Payments of Principal and Interest.
                                ----------------------------------

                    3.01  Repayment of Loans.  The Company hereby promises
                          ------------------
          to pay to the Agent for account of each Lender the principal of
          such Lender's Loans on the Maturity Date. 

                    3.02  Interest.  The Company hereby promises to pay to
                          --------
          the Agent for account of each Lender interest on the unpaid
          principal amount of each Loan made by such Lender for the period
          from and including the date of such Loan to but excluding the
          date such Loan shall be paid in full, at the following rates per
          annum:




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<PAGE>
                                        - 22 -

                    (a)  during such periods as such Loan is a Base Rate
               Loan, the Base Rate (as in effect from time to time) plus
                                                                    ----
               the Applicable Margin and

                    (b)  during such periods as such Loan is a Eurodollar
               Loan, for each Interest Period relating thereto, the
               Eurodollar Rate for such Loan for such Interest Period plus
                                                                      ----
               the Applicable Margin.

          Notwithstanding the foregoing, the Company hereby promises to pay
          to the Agent for account of each Lender interest at the
          applicable Post-Default Rate on the following:

                    (i)  on any principal of any Loan held by such Lender
               that shall not be paid in full when due (whether at stated
               maturity, by acceleration or otherwise), for the period from
               and including the due date thereof to but excluding the date
               the same is paid in full; and

                   (ii)  on any interest on any Loan that shall not be paid
               in full when due for the period from the due date thereof to
               but excluding the date the same is paid in full.  

          Accrued interest on each Loan shall be payable (i) in the case of
          a Base Rate Loan, on the Interest Payment Date and on the
          Maturity Date, (ii) in the case of a Eurodollar Loan, on the last
          day of each Interest Period therefor and on the Maturity Date and
          (iii) in the case of any Loan, upon the payment or prepayment
          thereof or the Conversion of such Loan to a Loan of another Type
          (but only on the principal amount so paid, prepaid or Converted),
          except that interest payable at the Post-Default Rate shall be
          payable from time to time on demand.  Promptly after the
          determination of any interest rate provided for herein or any
          change therein, the Agent shall give notice thereof to the
          Lenders and to the Company.

                    Section 4.  Payments; Pro Rata Treatment; Computations;
                                -------------------------------------------
          Etc.
          ----

                    4.01  Payments.
                          --------

                    (a)  Except to the extent otherwise provided herein,
          all payments of principal, interest and other amounts to be made
          by the Company under this Agreement and the Notes (and any
          payments made by YPF of the Guaranteed Obligations), and, except
          to the extent otherwise provided therein, all payments to be made
          by the Obligors under any other Basic Document, shall be made in
          Dollars, in immediately available funds, without deduction,
          set-off or counterclaim, to the Agent at account number
          NYAO-DI-900-9-000002 maintained by the Agent with Chase at the
          Principal Office, not later than 1:00 p.m. New York time on the


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<PAGE>
                                        - 23 -

          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), provided that, if (and
          only if) and to the extent so specified by the Agent (acting on
          the instructions of the Majority Lenders) in a notice to YPF, YPF
          shall make any such payment of the Guaranteed Obligations in
          Dollars, in immediately available funds, without deduction, set-
          off or counterclaim, for the account of the Agent to such office
          of such bank in Buenos Aires, Argentina, as is specified by the
          Agent in such notice no later than 2:00 p.m. Buenos Aires time on
          the date for the payment specified in such notice (which date
          shall be a day on which commercial banks in Buenos Aires,
          Argentina are not authorized or required to close and shall be no
          earlier than the date such payment is due hereunder) (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 under this Agreement or any Note for account of any
          Lender, specify to the Agent (which shall so notify the intended
          recipient(s) thereof) the Loans or other amounts payable by the
          Company hereunder to which such payment is to be applied, except
          that, if an Event of Default has occurred and is continuing, the
          Agent may distribute such payment to the Lenders for application
          in such manner as it or the Majority Lenders, subject to
          Section 4.02 hereof, may determine to be appropriate).

                    (c)  Each payment received by the Agent under this
          Agreement or any Note for account of any Lender shall be paid by
          the Agent promptly to such Lender, in immediately available
          funds, for account of such Lender's Applicable Lending Office for
          the Loan or other obligation in respect of which such payment is
          made.

                    (d)  If the due date of any payment under this
          Agreement or any Note would otherwise fall on a day that is not a
          Business Day, such date 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.

                    4.02  Pro Rata Treatment.  Except to the extent
                          ------------------
          otherwise provided herein:  (a) each borrowing from the Lenders
          under Section 2.01 hereof shall be made from the Lenders, and
          each termination or reduction of the amount of the Commitments
          under Section 2.03 hereof shall be applied to the respective
          Commitments of the Lenders, pro rata according to the amounts of
          their respective Commitments; (b) except as otherwise provided in
          Section 5.04 hereof, Eurodollar Loans having the same Interest
          Period shall be allocated pro rata among the Lenders according to
          the amounts of their respective Commitments (in the case of the
          making of Loans) or their respective Loans (in the case of


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<PAGE>
                                        - 24 -

          Conversions and Continuations of Loans); (c) each payment or
          prepayment of principal of Loans by the Company shall be made for
          account of the Lenders pro rata in accordance with the respective
          unpaid principal amounts of the Loans held by them; and (d) each
          payment of interest on Loans by the Company shall be made for
          account of the Lenders pro rata in accordance with the amounts of
          interest on such Loans then due and payable to the respective
          Lenders.

                    4.03  Computations.  Interest on Eurodollar Loans 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 and interest on Base
          Rate Loans shall be computed on the basis of a year of 365 or
          366 days, as the case may be, and actual days elapsed (including
          the first day but excluding the last day) occurring in the period
          for which payable.  Notwithstanding the foregoing, for each day
          that the Base Rate is calculated by reference to the Federal
          Funds Rate, interest on Base Rate Loans shall be computed on the
          basis of a year of 360 days and actual days elapsed.

                    4.04  Minimum Amounts.  Each borrowing, Conversion and
                          ---------------
          partial prepayment of principal of Loans shall be in an aggregate
          amount at least equal to (x) in the case of Base Rate Loans,
          $10,000,000 or a larger multiple of $1,000,000 and (y) in the
          case of Eurodollar Loans, $10,000,000 or in larger multiples of
          $5,000,000 (borrowings, Conversions or prepayments of or into
          Loans of different Types or, in the case of Eurodollar Loans,
          having different Interest Periods at the same time hereunder to
          be deemed separate borrowings, Conversions and prepayments for
          purposes of the foregoing, one for each Type or Interest Period),
          provided that the aggregate principal amount of Eurodollar Loans
          --------
          having the same Interest Period shall be in an amount at least
          equal to $20,000,000 or a larger multiple of $5,000,000 and, if
          any Eurodollar Loans would otherwise be in a lesser principal
          amount for any period, such Loans shall be Base Rate Loans during
          such period.

                    4.05  Certain Notices.  Notices by the Company to the
                          ---------------
          Agent of terminations or reductions of the Commitments and of
          borrowings, Conversions, Continuations and optional prepayments
          of Loans, of Types of Loans and of the duration of Interest
          Periods shall be irrevocable and shall be effective only if
          received by the Agent not later than 11:00 a.m. New York time on
          the number of Business Days prior to the date of the relevant
          termination, reduction, borrowing, Conversion, Continuation or
          prepayment or the first day of such Interest Period specified
          below:





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<PAGE>
                                        - 25 -

                                                       Number of
                                                        Business
                    Notice                             Days Prior
                    ------                             ----------

               Termination or reduction
               of Commitments                               3

               Borrowing or prepayment of,
               or Conversions into,
               Base Rate Loans                           same day

               Borrowing or prepayment of,
               Conversions into, Continuations
               as, or duration of Interest
               Period for, Eurodollar Loans                 3

          Each such notice of termination or reduction shall specify the
          amount of the Commitments to be terminated or reduced.  Each such
          notice of borrowing, Conversion, Continuation or optional
          prepayment shall specify the Loans to be borrowed, Converted,
          Continued or prepaid and the amount (subject to Section 4.04
          hereof) and Type of each Loan to be borrowed, Converted,
          Continued or prepaid and the date of borrowing, Conversion,
          Continuation or optional prepayment (which shall be a Business
          Day).  The Agent shall promptly notify the Lenders of the
          contents of each such notice.  In the event that the Company
          fails to select the Type of Loan, or the duration of any Interest
          Period for any Eurodollar Loan, within the time period and
          otherwise as provided in this Section 4.05, such Loan (if
          outstanding as a Eurodollar Loan) will be automatically Converted
          into a Base Rate Loan on the last day of the then current
          Interest Period for such Loan or (if outstanding as a Base Rate
          Loan) will remain as, or (if not then outstanding) will be made
          as, a Base Rate Loan.

                    4.06  Non-Receipt of Funds by the Agent.  Unless the
                          ---------------------------------
          Agent shall have been notified by a Lender or the Company (the
          "Payor") prior to the date on which the Payor is to make payment
           -----
          to the Agent or (in the case of a Lender) the proceeds of a Loan
          to be made by such Lender hereunder or (in the case of the
          Company) a payment to the Agent for account of one or more of the
          Lenders hereunder (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(s) on such date; and, if the Payor has not in fact made
          the Required Payment to the Agent, the recipient(s) of such
          payment shall, on demand, repay to the Agent the amount so made
          available together with interest thereon in respect of each day


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<PAGE>
                                        - 26 -

          during the period commencing on the date (the "Advance 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
          Federal Funds Rate for such day and, if such recipient(s) shall
          fail promptly to make such payment, the Agent shall be entitled
          to recover such amount, on demand, from the Payor, together with
          interest as aforesaid.

                    4.07  Sharing of Payments, Etc.
                          -------------------------

                    (a)  Each Obligor agrees that, in addition to (and
          without limitation of) any right of set-off, banker's lien or
          counterclaim a Lender may otherwise have, each Lender shall be
          entitled, at its option (to the fullest extent permitted by law)
          upon and during the continuance of an Event of Default, to set
          off and apply any deposit (general or special, time or demand,
          provisional or final), or other indebtedness, held by it for the
          credit or account of such Obligor at any of its offices, in
          Dollars or in any other currency, against any principal of or
          interest on any of such Lender's Loans or any other amount
          payable to such Lender hereunder, that is not paid when due
          (regardless of whether such deposit or other indebtedness are
          then due to such Obligor), in which case it shall promptly notify
          such Obligor and the Agent thereof, provided that such Lender's
                                              --------
          failure to give such notice shall not affect the validity
          thereof.

                    (b)  If any Lender shall obtain from either Obligor
          payment of any principal of or interest on any Loan owing to it
          or payment of any other amount under this Agreement or any other
          Basic Document through the exercise of any right of set-off,
          banker's lien or counterclaim or similar right or otherwise
          (other than from the Agent as provided herein), and, as a result
          of such payment, such Lender shall have received a greater
          percentage of the principal of or interest on the Loans or such
          other amounts then due hereunder or thereunder by such Obligor to
          such Lender than the percentage received by any other Lender, it
          shall promptly purchase from such other Lenders participations in
          (or, if and to the extent specified by such Lender, direct
          interests in) the Loans or such other amounts, respectively,
          owing to such other Lenders (or in interest due thereon, as the
          case may be) in such amounts, and make such other adjustments
          from time to time as shall be equitable, to the end that all the
          Lenders shall share the benefit of such excess payment (net of
          any expenses that may be incurred by such Lender in obtaining or
          preserving such excess payment) pro rata in accordance with the
          unpaid principal of and/or interest on the Loans or such other
          amounts, respectively, owing to each of the Lenders.  To such end
          all the Lenders shall make appropriate adjustments among
          themselves (by the resale of participations sold or otherwise) if
          such payment is rescinded or must otherwise be restored.


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<PAGE>
                                        - 27 -

                    (c)  The Obligors agree that, to the extent permitted
          by law, any Lender so purchasing such a participation (or direct
          interest) may exercise all rights of set-off, banker's lien,
          counterclaim or similar rights with respect to such participation
          as fully as if such Lender were a direct holder of Loans or other
          amounts (as the case may be) owing to such Lender in the amount
          of such participation.

                    (d)  Nothing contained herein shall require any Lender
          to exercise any such right or shall affect the right of any
          Lender to exercise, and retain the benefits of exercising, any
          such right with respect to any other indebtedness or obligation
          of either Obligor.  If, under any applicable bankruptcy,
          insolvency or other similar law, any Lender receives a secured
          claim in lieu of a set-off to which this Section 4.07 applies,
          such Lender shall, to the extent practicable, exercise its rights
          in respect of such secured claim in a manner consistent with the
          rights of the Lenders entitled under this Section 4.07 to share
          in the benefits of any recovery on such secured claim.

                    Section 5.  Yield Protection, Etc.
                                ----------------------

                    5.01  Additional Costs.
                          ----------------

                    (a)  The Company shall pay directly to each Lender from
          time to time such amounts as such Lender may determine to be
          necessary to compensate such Lender for any costs that such
          Lender determines are attributable to its making or maintaining
          of any Eurodollar Loans or its obligation to make any Eurodollar
          Loans hereunder, or any reduction in any amount receivable by
          such Lender hereunder in respect of any of such Loans or such
          obligation (such increases in costs and reductions in amounts
          receivable, together with costs referred to in Section 5.01(b)
          hereof, being herein called "Additional Costs"), resulting from
                                       ----------------
          any Regulatory Change that:

                    (i)  shall (without duplication of amounts paid
               pursuant to Section 5.06, 6.08 or 12.03(c) hereof) subject
               any Lender (or its Applicable Lending Office for any of such
               Loans) to any tax, duty or other charge in respect of such
               Loans or its Note or changes the basis of taxation of any
               amounts payable to such Lender under this Agreement or its
               Note in respect of any of such Loans (excluding, in each
               case, any such changes in the rate of tax on the overall net
               income of, or the rate at which franchise taxes are imposed
               on, such Lender or such Applicable Lending Office by the
               jurisdiction in which such Lender has its principal office
               or such Applicable Lending Office); or

                    (ii)  imposes or modifies any reserve, special deposit
               or similar requirements (other than the Reserve Requirement


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                                   Credit Agreement
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<PAGE>
                                        - 28 -

               utilized in the determination of the Eurodollar Rate for
               such Loan) relating to any extensions of credit or other
               assets of, or any deposits with or other liabilities of,
               such Lender (including, without limitation, any of such
               Loans, or any commitment of such Lender (including, without
               limitation, the Commitment of such Lender hereunder); or

                    (iii)  imposes any other condition affecting this
               Agreement or its Note (or any of such extensions of credit
               or liabilities) or its Commitment.

          If any Lender requests compensation from the Company under this
          Section 5.01(a), the Company may, by notice to such Lender (with
          a copy to the Agent), suspend the obligation of such Lender
          thereafter to make or Continue Eurodollar Loans, or to Convert
          Base Rate Loans into Eurodollar Loans, until the Regulatory
          Change giving rise to such request ceases to be in effect (in
          which case the provisions of Section 5.04 hereof shall be
          applicable), provided that such suspension shall not affect the
                       --------
          right of such Lender to receive the compensation so requested.

                    (b)  Without limiting the effect of the foregoing
          provisions of this Section 5.01 (but without duplication), the
          Company shall pay directly to each Lender from time to time on
          request such amounts as such Lender may determine to be necessary
          to compensate such Lender (or, without duplication, the holding
          company of which such Lender is a subsidiary) for any costs that
          it determines are attributable to the maintenance by such Lender
          (or any Applicable Lending Office or such bank holding company)
          of capital in respect of its Commitment or Loans that it would
          not have incurred but for a Regulatory Change (such compensation
          to include, without limitation, an amount equal to any reduction
          of the rate of return on assets or equity of such Lender (or any
          Applicable Lending Office or such bank holding company) to a
          level below that which such Lender (or any Applicable Lending
          Office or such bank holding company) could have achieved but for
          such Regulatory Change).

                    (c)  Each Lender shall notify the Company of any event
          occurring after the date hereof entitling such Lender to
          compensation under paragraph (a) or (b) of this Section 5.01 as
          promptly as practicable, but in any event within 30 days
          (45 days, in the case of Additional Costs referred to in said
          paragraph (b)), after such Lender obtains actual knowledge
          thereof; provided that (i) if any Lender fails to give such
                   --------
          notice within 30 days (45 days, in the case of Additional Costs
          referred to in said paragraph (b)) after it obtains actual
          knowledge of such an event, such Lender shall, with respect to
          compensation payable pursuant to this Section 5.01 in respect of
          any Additional Costs resulting from such event, only be entitled
          to payment under this Section 5.01 for Additional Costs incurred


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<PAGE>
                                        - 29 -

          from and after the date 30 days (45 days, in the case of
          Additional Costs referred to in said paragraph (b)) prior to the
          date that such Lender does give such notice and (ii) each Lender
          will make all reasonable efforts to avoid the need for or
          minimize the amount of such compensation, including, without
          limitation, designating a different Applicable Lending Office for
          the Loans of such Lender affected by such event if such
          designation will avoid the need for, or reduce the amount of,
          such compensation and will not, in the reasonable opinion of such
          Lender, be disadvantageous to such Lender, except that such
          Lender shall have no obligation to designate an Applicable
          Lending Office located in the United States of America.  Each
          Lender will furnish to the Company a certificate setting forth
          the basis and amount of each request by such Lender for
          compensation under paragraph (a) or (b) of this Section 5.01
          (which certificate, in the case of a request for compensation
          under said paragraph (b), shall state that such Lender is
          generally requesting such compensation from other similarly
          situated borrowers under similar credit facilities). 
          Determinations and allocations by any Lender for purposes of this
          Section 5.01 of the effect of any Regulatory Change pursuant to
          paragraph (a) of this Section 5.01, or of the effect of capital
          maintained pursuant to paragraph (b) of this Section 5.01, on its
          costs or rate of return of maintaining Loans or its obligation to
          make Loans, or on amounts receivable by it in respect of Loans,
          and of the amounts required to compensate such Lender under this
          Section 5.01, shall be prima facie evidence of such Lender's
          right to receive such compensation.

                    5.02  Limitation on Types of Loans.  Anything herein to
                          ----------------------------
          the contrary notwithstanding, if, on or prior to the
          determination of any Eurodollar Base Rate for any Interest
          Period:

                    (a)  the Agent determines, which determination shall be
               conclusive, that quotations of interest rates for the
               relevant deposits referred to in the definition of
               "Eurodollar Base Rate" in Section 1.01 hereof are not being
               provided in the relevant amounts or for the relevant
               maturities for purposes of determining rates of interest for
               Eurodollar Loans as provided herein; or

                    (b)  the Majority Lenders determine, which
               determination shall be conclusive, and notify the Agent that
               the relevant rates of interest referred to in the definition
               of "Eurodollar Base Rate" in Section 1.01 hereof upon the
               basis of which the rate of interest for Eurodollar Loans for
               such Interest Period is to be determined are not likely to
               be adequate to cover the cost to such Lenders of making or
               maintaining Eurodollar Loans for such Interest Period;



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<PAGE>
                                        - 30 -

          then the Agent shall give the Company and each Lender prompt
          notice thereof and, so long as such condition remains in effect,
          the Lenders shall be under no obligation to make additional
          Eurodollar Loans, to Continue Eurodollar Loans or to Convert Base
          Rate Loans into Eurodollar Loans, and the Company shall, on the
          last day(s) of the then current Interest Period(s) for the
          outstanding Eurodollar Loans, either prepay such Loans or Convert
          such Loans into Base Rate Loans in accordance with Section 2.07
          hereof.

                    5.03  Illegality.  Notwithstanding any other provision
                          ----------
          of this Agreement, in the event that it becomes unlawful for any
          Lender or its Applicable Lending Office to honor its obligation
          to make or maintain Eurodollar Loans hereunder (and, in the
          reasonable opinion of such Lender, the designation of a different
          Applicable Lending Office would either not avoid such
          unlawfulness or would be disadvantageous to such Lender), then
          such Lender shall promptly notify the Company thereof (with a
          copy to the Agent) and such Lender's obligation to make or
          Continue, or to Convert Loans of any other Type into, Eurodollar
          Loans shall be suspended until such time as such Lender may again
          make and maintain Eurodollar Loans (in which case the provisions
          of Section 5.04 hereof shall be applicable).

                    5.04  Treatment of Affected Loans.  If the obligation
                          ---------------------------
          of any Lender to make Eurodollar Loans or to Continue, or to
          Convert Base Rate Loans into, Eurodollar Loans shall be suspended
          pursuant to Section 5.01 or 5.03 hereof, such Lender's Eurodollar
          Loans shall be automatically Converted into Base Rate Loans on
          the last day(s) of the then current Interest Period(s) for
          Eurodollar Loans (or, in the case of a Conversion required by
          Section 5.03 hereof, on such earlier date as such Lender may
          specify to the Company with a copy to the Agent) and, unless and
          until such Lender gives notice as provided below that the
          circumstances specified in Section 5.01 or 5.03 hereof that gave
          rise to such Conversion no longer exist:

                    (a)  to the extent that such Lender's Eurodollar Loans
               have been so Converted, all payments and prepayments of
               principal that would otherwise be applied to such Lender's
               Eurodollar Loans shall be applied instead to its Base Rate
               Loans; and

                    (b)  all Loans that would otherwise be made or
               Continued by such Lender as Eurodollar Loans shall be made
               or Continued instead as Base Rate Loans, and all Base Rate
               Loans of such Lender that would otherwise be Converted into
               Eurodollar Loans shall remain as Base Rate Loans.

          If such Lender gives notice to the Company with a copy to the
          Agent that the circumstances specified in Section 5.01 or 5.03


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<PAGE>
                                        - 31 -

          hereof that gave rise to the Conversion of such Lender's
          Eurodollar Loans pursuant to this Section 5.04 no longer exist
          (which such Lender agrees to do promptly upon such circumstances
          ceasing to exist) at a time when Eurodollar Loans made by other
          Lenders are outstanding, such Lender's Base Rate Loans shall be
          automatically Converted, on the first day(s) of the next
          succeeding Interest Period(s) for such outstanding Eurodollar
          Loans, to the extent necessary so that, after giving effect
          thereto, all Loans held by the Lenders holding Eurodollar Loans
          and by such Lender are held pro rata (as to principal amounts,
          Types and Interest Periods) in accordance with their respective
          Commitments.

                    5.05  Broken Funding.  The Company shall pay to the
                          --------------
          Agent for account of each Lender, upon the request of such Lender
          through the Agent, such amount or amounts as shall be sufficient
          (in the reasonable opinion of such Lender) to compensate it for
          any loss, cost or expense that such Lender determines is
          attributable to:

                    (a)  any payment, prepayment or Conversion of a
               Eurodollar Loan made by such Lender for any reason
               (including, without limitation, the acceleration of the
               Loans pursuant to Section 10 hereof but excluding any
               Conversion pursuant to Section 5.04 hereof resulting from an
               event referred to in Section 5.03 hereof) on a date other
               than the last day of the Interest Period for such Loan; or

                    (b)  any failure by the Company for any reason
               (including, without limitation, the failure of any of the
               conditions precedent specified in Section 7 hereof to be
               satisfied) to borrow a Eurodollar Loan from such Lender on
               the date for such borrowing specified in the relevant notice
               of borrowing given pursuant to Section 2.02 hereof.

          Without limiting the effect of the preceding sentence, such
          compensation shall include an amount equal to the excess, if any,
          of (i) the amount of interest that otherwise would have accrued
          on the principal amount so paid, prepaid, Converted or not
          borrowed for the period from the date of such payment,
          prepayment, Conversion or failure to borrow to the last day of
          the then current Interest Period for such Loan (or, in the case
          of a failure to borrow, the Interest Period for such Loan that
          would have commenced on the date specified for such borrowing) at
          the applicable rate of interest for such Loan provided for herein
          (minus the relevant Applicable Margin) over (ii) the amount of
          interest that otherwise would have accrued on such principal
          amount at a rate per annum equal to the interest component of the
          amount such Lender would have offered in the London interbank
          market for Dollar deposits of leading banks in amounts comparable
          to such principal amount and with maturities comparable to such


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<PAGE>
                                        - 32 -

          period (as reasonably determined by such Lender).  Each Lender
          claiming compensation under this Section 5.05 will furnish to the
          Company through the Agent a certificate setting forth the basis
          of the calculation and the amount of such compensation, which
          certificate shall be prima facie evidence of such Lender's right
          to receive the compensation claimed.

                    5.06  U.S. Taxes.
                          ----------

                    (a)  The Company agrees to pay to each Lender that is
          not a U.S. Person such additional amounts as are necessary in
          order that the net payment of any amount due to such
          non-U.S. Person hereunder after deduction for or withholding in
          respect of any U.S. Taxes imposed with respect to such payment
          (or in lieu thereof, payment of such U.S. Taxes by such
          non-U.S. Person), will not be less than the amount stated herein
          to be then due and payable, provided that the foregoing
                                      --------
          obligation to pay such additional amounts shall not apply:

                         (i)  to any payment to any Lender hereunder unless
               such Lender is, on the date hereof (or on the date it
               becomes a Lender hereunder as provided in Section 12.06(b)
               hereof) and on the date of any change in the Applicable
               Lending Office of such Lender, either entitled to submit a
               Form 1001 (relating to such Lender and entitling it to a
               complete exemption from withholding on all interest to be
               received by it hereunder in respect of the Loans) or
               Form 4224 (relating to all interest to be received by such
               Lender hereunder in respect of the Loans), or

                         (ii)  to any U.S. Taxes imposed solely by reason
               of the failure by such non-U.S. Person to comply with
               applicable certification, information, documentation or
               other reporting requirements concerning the nationality,
               residence, identity or connections with the United States of
               America of such non-U.S. Person if such compliance is
               required by statute or regulation of the United States of
               America as a precondition to relief or exemption from such
               U.S. Taxes.

          For the purposes of this Section 5.06(a), (A) "U.S. Person" shall
                                                         -----------
          mean a citizen, national or resident of the United States of
          America, a corporation, partnership or other entity created or
          organized in or under any laws of the United States of America or
          any State thereof, or any estate or trust that is subject to
          Federal income taxation regardless of the source of its income,
          (B) "U.S. Taxes" shall mean any present or future tax, assessment
               ----------
          or other charge or levy imposed by or on behalf of the United
          States of America or any taxing authority thereof or therein,
          (C) "Form 1001" shall mean Form 1001 (Ownership, Exemption, or
               ---------
          Reduced Rate Certificate) of the Department of the Treasury of


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<PAGE>
                                        - 33 -

          the United States of America and (D) "Form 4224" shall mean
                                                ---------
          Form 4224 (Exemption from Withholding of Tax on Income
          Effectively Connected with the Conduct of a Trade or Business in
          the United States) of the Department of the Treasury of the
          United States of America (or in relation to either such Form such
          successor and related forms as may from time to time be adopted
          by the relevant taxing authorities of the United States of
          America to document a claim to which such Form relates).  Each of
          the Forms referred to in the foregoing clauses (C) and (D) shall
          include such successor and related forms as may from time to time
          be adopted by the relevant taxing authorities of the United
          States of America to document a claim to which such Form relates.

                    (b)  Within 30 days after paying any amount to the
          Agent or any Lender from which it is required by law to make any
          deduction or withholding, and within 30 days after it is required
          by law to remit such deduction or withholding to any relevant
          taxing or other authority, the Company shall deliver to the Agent
          for delivery to such non-U.S. Person evidence satisfactory to
          such Person of such deduction, withholding or payment (as the
          case may be).

                    (c)  Each Lender (including any lender that becomes a
          Lender pursuant to Section 12.06 hereof) represents and warrants
          to the Obligors and the Agent that on the date hereof (or, in the
          case of any such lender that becomes a Lender pursuant to said
          Section 12.06, on the date it becomes a Lender) such Lender is
          either organized under the laws of the United States or a State
          thereof or is entitled to submit either a Form 1001 (relating to
          such Lender and entitling it to a complete exemption from
          withholding on all interest to be received by it hereunder in
          respect of the Loans) or a Form 4224 (relating to all interest to
          be received by such Lender hereunder in respect of the Loans) and
          has delivered two copies of such form duly completed to each of
          the Agent and the Company.

                    5.07  Replacement of Certain Lenders.  If (a) any
                          ------------------------------
          Lender improperly declines to make any Loan required to be made
          by it hereunder, becomes the subject of an insolvency proceeding,
          requests compensation under Section 5.01 hereof or gives notice
          under Section 5.03 hereof suspending its obligation to make or
          maintain Eurodollar Loans hereunder and (b) no Default shall have
          occurred and be continuing, then the Company, upon not less than
          three Business Days' prior notice to such Lender (with a copy to
          the Agent), may require that such Lender assign (in which case
          such Lender shall assign as provided in Section 12.06 hereof) its
          Loan(s) and Commitment to one or more other Lenders, or another
          lender (reasonably acceptable to the Agent), specified by the
          Company in such notice that are willing to accept such assignment
          for an amount equal to the sum of the outstanding aggregate
          principal amount of such Lender's Loan(s) and unpaid interest


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                                        - 34 -

          thereon accrued to the date of the consummation of such
          assignment (such assignment to be pursuant to documentation
          reasonably acceptable to the assigning Lender), provided that
          upon the consummation of such assignment the Company shall pay to
          such Lender (x) such amounts (if any) as are then owing to such
          Lender under this Section 5 (including, without limitation,
          amounts under Section 5.05 hereof, if any, that the Company would
          be required to pay to such Lender if the Loan(s) assigned by such
          Lender were being prepaid by the Company on the date of such
          consummation) and (y) all other amounts then owing by the Company
          hereunder to or for the account of such Lender.

                    Section 6.  Guarantee.
                                ---------

                    6.01  The Guarantee.  YPF hereby guarantees to each
                          -------------
          Lender and the Agent and their respective successors and assigns
          the prompt payment in full when due (whether at stated maturity,
          by acceleration or otherwise) of the principal of and interest on
          the Loans made by the Lenders to, and, without duplication, the
          Note held by each Lender of, the Company and all other amounts
          from time to time owing to the Lenders or the Agent by the
          Company under this Agreement and, without duplication, under the
          Notes and by the Company under any of the other Basic Documents,
          in each case strictly in accordance with the terms thereof (such
          obligations being herein collectively called the "Guaranteed
                                                            ----------
          Obligations").  YPF hereby further agrees that if the Company
          -----------
          shall fail to pay in full when due (whether at stated maturity,
          by acceleration or otherwise) any of the Guaranteed Obligations,
          YPF will promptly pay the same, without any demand or notice
          whatsoever, and that in the case of any extension of time of
          payment or renewal of any of the Guaranteed Obligations, the same
          will be promptly paid in full when due (whether at extended
          maturity, by acceleration or otherwise) in accordance with the
          terms of such extension or renewal.

                    6.02  Obligations Unconditional.  The obligations of
                          -------------------------
          YPF under Section 6.01 hereof are, to the fullest extent
          permitted by law, absolute and unconditional irrespective of the
          value, genuineness, validity, regularity or enforceability of the
          obligations of the Company under this Agreement, the Notes or any
          other agreement or instrument referred to herein or therein, or
          any substitution, release or exchange of any other guarantee of
          or any security for any of the Guaranteed Obligations, and, to
          the fullest extent permitted by applicable law, irrespective of
          any other circumstance whatsoever that might otherwise constitute
          a legal or equitable discharge or defense of a surety or
          guarantor, it being the intent of this Section 6.02 that the
          obligations of YPF hereunder shall be absolute and unconditional
          under any and all circumstances (other than full and final
          payment of the Guaranteed Obligations).  Without limiting the
          generality of the foregoing, it is agreed that, to the fullest


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<PAGE>
                                        - 35 -

          extent permitted by law, the occurrence of any one or more of the
          following shall not alter or impair the liability of YPF
          hereunder which shall remain absolute and unconditional as
          described above:

                       (i)  at any time or from time to time, without
               notice to YPF, the time for any performance of or compliance
               with any of the Guaranteed Obligations shall be extended
               (subject to Section 12.04 hereof), or such performance or
               compliance shall be waived;

                      (ii)  any of the acts mentioned in any of the
               provisions of this Agreement or the Notes or any other
               agreement or instrument referred to herein or therein shall
               be done or omitted;

                     (iii)  the maturity of any of the Guaranteed
               Obligations shall be accelerated, or any of the Guaranteed
               Obligations shall be modified, supplemented or amended in
               any respect (subject to Section 12.04 hereof), or any right
               under this Agreement or the Notes or any other agreement or
               instrument referred to herein or therein shall be waived or
               any other guarantee of any of the Guaranteed Obligations or
               any security therefor shall be released or exchanged in
               whole or in part or otherwise dealt with; or

                      (iv)  any lien or security interest granted to, or in
               favor of, the Agent or any Lender or Lenders as security for
               any of the Guaranteed Obligations shall fail to be
               perfected.

          YPF hereby expressly waives diligence, presentment, demand of
          payment, protest and all notices whatsoever, and any requirement
          that the Agent or any Lender exhaust any right, power or remedy
          or proceed against the Company under this Agreement or the Notes
          or any other agreement or instrument referred to herein or
          therein, or against any other Person under any other guarantee
          of, or security for, any of the Guaranteed Obligations.  YPF
          hereby also irrevocably waives any right contemplated by
          Articles 480 (second paragraph), 481 and 482 of the Argentine
          Commercial Code as well as any rights and powers contemplated by
          Articles 1990, 1994, 2012, 2015, 2017, 2018, 2020, 2021, 2022,
          2023, 2025, 2026, 2029, 2043, 2044, 2045, 2046, 2047, 2049 and
          2050 of the Argentine Civil Code.

                    6.03  Reinstatement.  The obligations of YPF under this
                          -------------
          Section 6 shall be automatically reinstated if and to the extent
          that for any reason any payment by or on behalf of the Company in
          respect of the Guaranteed Obligations is rescinded or must be
          otherwise restored by any holder of any of the Guaranteed
          Obligations, whether as a result of any proceedings in bankruptcy


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<PAGE>
                                        - 36 -

          or reorganization or otherwise and YPF agrees that it will
          indemnify the Agent and each Lender on demand for all reasonable
          costs and expenses (including, without limitation, fees of
          counsel) incurred by the Agent or such Lender in connection with
          such rescission or restoration, including any such costs and
          expenses incurred in defending against any claim alleging that
          such payment constituted a preference, fraudulent transfer or
          similar payment under any bankruptcy, insolvency or similar law.

                    6.04  Subrogation.  YPF hereby waives all rights of
                          -----------
          subrogation or contribution, whether arising by contract or
          operation of law (including, without limitation, any such right
          arising under the Bankruptcy Code) or otherwise by reason of any
          payment by it pursuant to the provisions of this Section 6 and
          further agrees with the Company for the benefit of each of its
          creditors (including, without limitation, each Lender and the
          Agent) that any such payment by it shall constitute a
          contribution of capital by YPF to the Company (or an investment
          in the equity capital of the Company by YPF).

                    6.05  Remedies.  YPF agrees that, as between YPF and
                          --------
          the Lenders, to the fullest extent permitted by law, the
          obligations of the Company under this Agreement and the Notes may
          be declared to be forthwith due and payable as provided in
          Section 10 hereof (and shall be deemed to have become
          automatically due and payable in the circumstances provided in
          said Section 10) for purposes of Section 6.01 hereof
          notwithstanding any stay, injunction or other prohibition
          preventing such declaration (or such obligations from becoming
          automatically due and payable) as against the Company and that,
          in the event of such declaration (or such obligations being
          deemed to have become automatically due and payable), such
          obligations (whether or not due and payable by the Company) shall
          forthwith become due and payable by YPF for purposes of said
          Section 6.01.

                    6.06  Instrument for the Payment of Money.  To the
                          -----------------------------------
          fullest extent permitted by law, YPF hereby (a) acknowledges that
          the guarantee in this Section 6 constitutes an instrument for the
          payment of money, and (b) consents and agrees that any Lender or
          the Agent, at its sole option, in the event of a dispute by YPF
          in the payment of any moneys due hereunder, shall have the right
          to bring motion-action under New York CPLR Section 3213.

                    6.07  Continuing Guarantee.  The guarantee in this
                          --------------------
          Section 6 is a continuing guarantee, and shall apply to all
          Guaranteed Obligations whenever arising.






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<PAGE>
                                        - 37 -

                    6.08  Taxes.  YPF covenants and agrees that:
                          -----

                    (a)  All payments on account of the Guaranteed
          Obligations by YPF to the Agent and the Lenders, including,
          without limitation, amounts payable under paragraph (b) of this
          Section 6.08, shall be made in Dollars, free and clear of and
          without reduction by reason of any and all present and future
          income, stamp, excise, asset, value added and other taxes and
          levies, imposts, deductions, charges, compulsory loans and
          withholdings whatsoever imposed, assessed, levied or collected by
          Argentina or any political subdivision or taxing authority
          thereof or therein, together with interest thereon and penalties
          with respect thereto, if any, on or in respect of this Agreement,
          the Pledge Agreement, the Guaranteed Obligations, the
          registration, notarization or other formalization of any thereof,
          and any payments of principal, interest, charges, fees or other
          amounts made on, under or in respect thereof (hereinafter called
          "Argentine Taxes"), all of which will be paid by YPF, for its own
           ---------------
          account, prior to the date on which penalties attach thereto.

                    (b)  YPF will indemnify the Agent and the Lenders
          against, and reimburse the Agent and the Lenders on demand for,
          any Argentine Taxes and any loss, liability, claim, or expense
          including interest, penalties, and legal fees which the Agent or
          the Lenders may incur at any time arising out of or in connection
          with any failure of YPF to make any payments of Argentine Taxes
          when due.

                    (c)  To the extent that YPF is required by applicable
          law, decree or regulation to deduct or withhold Argentine Taxes
          from any amounts payable on, under or in respect of this
          Agreement, the Pledge Agreement or the Guaranteed Obligations,
          YPF shall pay the Agent and the Lenders in Dollars such
          additional amounts as may be required, after the deduction or
          withholding of Argentine Taxes, to enable the Agent and the
          Lenders to receive from YPF an amount equal to the amount stated
          to be payable in respect of this Agreement, the Pledge Agreement
          or the Guaranteed Obligations.

                    (d)  YPF shall furnish to the Agent and the Lenders
          original tax receipts in respect of any withholding of Argentine
          Taxes required under this Section 6.08 within 30 days after the
          date of each payment of interest which is subject to any
          Argentine Taxes, and YPF shall promptly furnish to the Agent and
          the Lenders any other information, documents and receipts that
          the Agent and the Lenders may, in their sole discretion from time
          to time, require to establish to their satisfaction that full and
          timely payment has been made of all Argentine Taxes required to
          be paid under this Section 6.08.




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<PAGE>
                                        - 38 -

                    (e)  YPF shall pay all present and future Argentine
          Taxes, including but not limited to stamp taxes, imposts,
          contributions, charges, deductions, withholdings, court taxes,
          duties and fees which are imposed, assessed, levied or collected
          in connection with the execution, delivery, registration,
          notarization, enforcement or any other act related thereto, of
          any of the Basic Documents and any documents related thereto, and
          shall, upon notice from the Agent or any Lender, reimburse the
          Agent or any Lender or its assigns for any such taxes, imposts,
          contributions, charges, deductions, duties and fees.

                    Section 7.  Conditions Precedent.
                                --------------------

                    7.01  Initial Loans.  The obligation of the Lenders to
                          -------------
          make the initial Loans to be made hereunder on the Initial
          Borrowing Date is subject to the prior or simultaneous
          satisfaction of the following conditions:  (i) the aggregate
          principal amount of such Loans shall not exceed the amount
          specified in Section 2.01(a) hereof (and the Agent shall have
          received evidence thereof reasonably satisfactory to it) and
          (ii) the Agent shall have received the following documents or
          other evidence, all of such documents and evidence to be
          reasonably satisfactory to the Agent (or the Majority Lenders, to
          the extent specified below) in form and substance:

                    (a)  Corporate Documents.  The following documents,
                         -------------------
          each certified as indicated below:

                         (i)  for YPF Acquisition, a copy of the charter,
                    as in effect, certified as of a date reasonably close
                    to the Initial Borrowing Date by the Secretary of State
                    of Delaware, and a certificate from such Secretary of
                    State dated as of a date reasonably close to the
                    Initial Borrowing Date as to the good standing of and
                    charter documents filed by, YPF Acquisition;

                        (ii)  for YPF Acquisition, a certificate of the
                    Secretary or an Assistant Secretary of YPF Acquisition,
                    dated the Initial Borrowing Date and certifying
                    (A) that attached thereto is a true and complete copy
                    of the by-laws of YPF Acquisition as amended and in
                    effect at all times from the date on which the
                    resolutions referred to in clause (B) below were
                    adopted to and including the date of such certificate,
                    (B) that attached thereto is a true and complete copy
                    of resolutions duly adopted by the board of directors
                    of YPF Acquisition authorizing the execution, delivery
                    and performance of such of the Basic Documents to which
                    it is or is intended to be a party (including the
                    borrowings hereunder), and that such resolutions have
                    not been modified, rescinded or amended and are in full


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<PAGE>
                                        - 39 -

                    force and effect, (C) that the charter documents of
                    YPF Acquisition have not been amended since the date
                    one day prior to the certification thereto furnished
                    pursuant to clause (i) above, and (D) as to the
                    incumbency and specimen signature of each officer of
                    YPF Acquisition executing such of the Basic Documents
                    to which YPF Acquisition is or is intended to be a
                    party and each other document to be delivered by
                    YPF Acquisition from time to time in connection
                    therewith (and the Agent and each Lender may
                    conclusively rely on such certificate until it receives
                    notice in writing from YPF Acquisition);

                       (iii)  for YPF Acquisition, a certificate of another
                    officer of YPF Acquisition, dated the Initial Borrowing
                    Date, as to the incumbency and specimen signature of
                    the Secretary or Assistant Secretary, as the case may
                    be, of YPF Acquisition; and

                        (iv)  for YPF, certified copies, dated the Initial
                    Borrowing Date, of the estatutos and other constitutive
                                           ---------
                    documents of YPF and of all corporate authority for YPF
                    (including, without limitation, board of director
                    resolutions and evidence of the incumbency, including
                    specimen signatures, of officers) with respect to the
                    execution, delivery and performance of this Agreement
                    and each other Basic Document to be executed and
                    delivered by YPF from time to time in connection
                    herewith and with the Loans hereunder (and the Agent
                    and each Lender may conclusively rely on such
                    certificate until it receives notice in writing from
                    YPF).

                    (b)  Notes.  The Note for each Lender, duly completed
                         -----
          and executed for such Lender.

                    (c)  Opinions of Counsel to the Obligors.  Opinions,
                         -----------------------------------
          dated the Initial Borrowing Date, of (i) Andrews & Kurth L.L.P.,
          special New York counsel to the Obligors, substantially in the
          form of Exhibit D-1 hereto and covering such other matters as the
          Agent or any Lender may reasonably request, and (ii) Marval,
          O'Farrell & Mairal, special Argentine counsel to the Obligors,
          substantially in the form of Exhibit D-2 hereto and covering such
          other matters as the Agent or any Lender may reasonably request
          (and each Obligor hereby instructs each such counsel to deliver
          such opinion to the Lenders and the Agent).

                    (d)  Opinion of Special New York Counsel to Chase;
                         ---------------------------------------------
          Opinion of Special Argentine Counsel to Chase.  Opinions, dated
          ---------------------------------------------
          the Initial Borrowing Date, of (i) Milbank, Tweed, Hadley &
          McCloy, special New York counsel to Chase, substantially in the


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<PAGE>
                                        - 40 -

          form of Exhibit E-1 hereto and (ii) Perez Alati, Grondona,
          Benites, Arntsen & Martinez de Hoz (h), special Argentine counsel
          to Chase, substantially in the form of Exhibit E-2 hereto (and
          Chase hereby instructs each such counsel to deliver such opinion
          to the Lenders and the Agent).

                    (e)  Tender of Maxus Shares, Etc.  Evidence (which, in
                         ----------------------------
          the case of clause (i) below, shall be a certificate of a senior
          officer of YPF Acquisition and in the case of clauses (ii) and
          (iii) below shall be a certificate of a senior officer of Maxus)
          that (i) the Maxus Shares tendered (as well as the aggregate
          amount thereof) and to be purchased pursuant to the Offer to
          Purchase have been tendered to YPF Acquisition, with no
          restrictions to purchase imposed by applicable law, and have not
          been withdrawn and are available for purchase in accordance with
          the terms and conditions of the Offer to Purchase, (ii) all
          actions to be taken by the Board of Directors of Maxus as
          specified in the third sentence of Section 1.2 of the Merger
          Agreement have been taken (and that the determination, approval
          and recommendation of such Board referred to in clauses (a), (b)
          and (c) of such sentence have not been materially modified or
          amended or withdrawn, except for (x) any such modification or
          amendment described in the parenthetical phrase in clause (v)(g)
          of Section 14 of the Offer to Purchase and (y) any such
          modification, amendment or withdrawal approved by the Majority
          Lenders, such approval not to be unreasonably withheld) and
          (iii) the actions to be taken by Maxus as specified in the last
          sentence of Section 1.2 of the Merger Agreement have been taken.

                    (f)  Tender Offer Documents, Governmental Approvals,
                         -----------------------------------------------
          Etc.  (i) Copies (certified by a senior officer of
          ----
          YPF Acquisition) of all Tender Offer Documents (including the
          Offer to Purchase), (ii) a copy (certified by a senior officer of
          YPF Acquisition) of the Notification and Report Form in respect
          of the Acquisition furnished to the Department of Justice and the
          Federal Trade Commission pursuant to the Hart-Scott-Rodino
          Antitrust Improvements Act of 1976, (iii) a certificate of a
          senior officer of YPF Acquisition dated the Initial Borrowing
          Date certifying that the Minimum Share Condition (as such term is
          defined in the Offer to Purchase) and all of the other conditions
          precedent to the purchase of the Maxus Shares contained in the
          Offer to Purchase have been satisfied without any modification or
          waiver (except for any such modification or waiver approved by
          the Majority Lenders, such approval not to be unreasonably
          withheld) and that the Offer to Purchase has been duly authorized
          by YPF Acquisition, (iv) if and to the extent requested by the
          Agent, evidence (reasonably satisfactory to the Agent) that all
          necessary governmental and third party consents and approvals in
          connection with the Acquisition and the other transactions
          contemplated hereby have been obtained and remain in full force
          and effect without the imposition of any conditions on any


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<PAGE>
                                        - 41 -

          thereof (other than (x) any such conditions approved by the
          Majority Lenders, such approval not to be unreasonably withheld,
          and (y) any such governmental and third party consents and
          approvals that are required to be obtained in connection with the
          Merger but not prior to the date hereof (which approvals and
          consents the Obligors hereby represent they have no reason to
          believe will not be obtained on or prior to the date required to
          be obtained) and (v) if and to the extent requested by the Agent,
          evidence (reasonably satisfactory to the Agent) that all
          applicable waiting periods with respect to the Acquisition have
          expired without any action being taken by any competent authority
          that restricts, prevents or imposes materially adverse conditions
          upon the consummation of either the Tender Offer or the Merger.

                    (g)  Merger Agreement.  A certificate of Maxus dated
                         ----------------
          the Initial Borrowing Date certifying that, as of such date, none
          of the events specified in clause (v)(e) of Section 14 of the
          Offer to Purchase shall have occurred.

                    (h)  Other Acquisition Documents.  Copies (certified by
                         ---------------------------
          a senior officer of YPF Acquisition) of all other Acquisition
          Documents as in effect of the date hereof.

                    (i)  Equity Contribution to YPF Acquisition.  A
                         --------------------------------------
          certificate of a senior officer of YPF Acquisition that
          YPF Acquisition has received from YPF aggregate net cash proceeds
          of not less than $250,000,000 in respect of the issuance of the
          shares of common stock by YPF Acquisition to YPF and/or as
          additional paid in capital.

                    (j)  Maxus Shares.  A certificate of a senior officer
                         ------------
          of YPF certifying that none of YPF or any of its Subsidiaries
          (other than YPF Acquisition) owns any Maxus Shares.

                    (k)  Pledge Agreement.  The Pledge Agreement, duly
                         ----------------
          executed and delivered by YPF and the Agent, together with the
          certificate(s) representing all of the issued and outstanding
          shares of capital stock of YPF Acquisition accompanied by undated
          stock powers duly executed in blank.

                    (l)  Reserve Report, Projections, Etc.  A reserve
                         --------------------------------
          report with respect to all of the oil and natural gas assets of
          Midgard, Maxus Java and Maxus Sumatra prepared by Gaffney,
          Cline & Associates, Inc. dated March 10, 1995, as audited by
          Miller & Lents, Ltd. (the results of such audit being set forth
          in a letter dated March 23, 1995 from Miller & Lents, Ltd. (such
          letter to be in form and substance satisfactory to the Majority
          Lenders)) and projections prepared by Miller & Lents, Ltd. with
          respect to future cash and cash flows of Maxus, Midgard, Maxus
          Indonesia, Maxus Java and Maxus Sumatra.  



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<PAGE>
                                        - 42 -

                    (m)  Process Agent Acceptance.  A process agent
                         ------------------------
          acceptance, duly executed and delivered by the Process Agent, in
          substantially the form of Exhibit H hereto.

                    (n)  Solvency of Maxus.  A written opinion of Houlihan
                         -----------------
          Lokey Howard & Zukin, Inc. demonstrating that, after giving
          effect to the Merger (and the performance of the terms and
          conditions of the Merger Agreement), the Loans hereunder in the
          full amount of the Commitments, the assumption by Maxus of YPF
          Acquisition's obligations hereunder and under the Notes provided
          for by the Assumption Agreement and the other transactions
          contemplated hereby to occur on or prior to the Merger Closing
          Date or in connection with the Merger:  (i) the fair saleable
          value of the assets of Maxus exceeds the amount that will be
          required to be paid on or in respect of the debts and other
          liabilities (including contingent, unmatured and subordinated
          liabilities) of Maxus as they mature; (ii) Maxus does not have
          unreasonably small capital to carry out its business as conducted
          or as proposed to be conducted; and (iii) Maxus has not incurred
          debts beyond its ability to pay such debts as they mature
          (references to Maxus in clauses (i), (ii) and (iii) above being
          to Maxus on each of a stand-alone and a consolidated basis). 
          Also, the Agent shall have received (x) a certificate of Maxus
          certifying (A) as to the conclusions specified in clauses (i),
          (ii) and (iii) above, (B) that Maxus does not intend to, and does
          not believe that it will, incur debts beyond its ability to pay
          such debts as they mature and (C) as to such other matters
          relating to the subject matter of the opinion referred to in the
          preceding sentence as the Agent may reasonably request.

                    (o)  Environmental Liabilities.  A certificate of a
                         -------------------------
          senior officer of Maxus as to the corporate structure of Midgard
          and its Subsidiaries in relation to Chemical Land Holdings, Inc.
          and environmental matters relating to Midgard.

                    (p)  Other Documents.  Such other documents as the
                         ---------------
          Agent or any Lender or special New York counsel to Chase
          reasonably request.

          The obligation of each Lender to make its Initial Loan hereunder
          is also subject to the payment by the Obligors of such fees as
          the Obligors shall have agreed to pay to any Lender, the Agent or
          Chase in connection herewith on or prior to the Initial Borrowing
          Date, including without limitation, the reasonable fees and
          expenses of Milbank, Tweed, Hadley & McCloy, special New York
          counsel to Chase and Perez Alati, Grondona, Benites, Arntsen &
          Martinez de Hoz (h), special Argentine counsel to Chase, in
          connection with the negotiation, preparation, execution and
          delivery of this Agreement and the other Basic Documents and the
          documents providing for or relating to the other Acquisition
          Financing Transactions and the making of the Loans hereunder and


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<PAGE>
                                        - 43 -

          thereunder (to the extent that statements for such fees and
          expenses have been delivered to the Obligors and, in the case of
          Milbank, Tweed, Hadley & McCloy, subject to the proviso in
          Section 12.03(a)(i) hereof).

                    7.02  Second Loans.  The obligation of the Lenders to
                          ------------
          make the Second Loans to be made hereunder on the Second
          Borrowing Date is subject to the prior or simultaneous
          satisfaction of the following conditions:  (i) the aggregate
          principal amount of such Loans shall not exceed the amount
          specified in Section 2.01(b) hereof (and the Agent shall have
          received evidence thereof satisfactory to it) and (ii) the Agent
          shall have received the following documents, or other evidence,
          all of which shall be satisfactory to the Agent (or the Majority
          Lenders, to the extent specified below) in form and substance:  

                    (a)  Assumption Agreement.  The Assumption Agreement,
                         --------------------
          duly executed and delivered by Maxus and the Agent.

                    (b)  Corporate Documents.  The following documents,
                         -------------------
          each certified as indicated below:

                    (i)  the Articles of Merger relating to the merger of
               YPF Acquisition into Maxus as filed with the Secretary of
               State of Delaware certified as of the Second Borrowing Date
               by the Secretary or an Assistant Secretary of Maxus;

                   (ii)  a certificate of the Secretary or an Assistant
               Secretary of Maxus dated the Second Borrowing Date
               certifying (A) that attached thereto is a true and complete
               copy of the Certificate of Incorporation and by-laws of
               Maxus, as amended and in effect on the Second Borrowing Date
               (prior to giving effect to the Merger), (B) that attached
               thereto is a true and complete copy of resolutions duly
               adopted by the board of directors of Maxus authorizing the
               execution, delivery and performance of the Assumption
               Agreement and (C) as to the incumbency and specimen
               signature of each officer of Maxus that executed the
               Assumption Agreement (and the Agent and each Lender may
               conclusively rely on such certificate until it receives
               notice in writing from Maxus to the contrary); 

                 (iii)  a certificate of another officer of Maxus, dated
               the Second Borrowing Date, as to the incumbency and specimen
               signature of the Secretary or an Assistant Secretary, as the
               case may be, of Maxus;

                  (iv)  certificates of (A) the Secretary of State of
               Delaware dated the Second Borrowing Date as to the good
               standing of and charter documents filed by Maxus, Midgard,
               Maxus Indonesia, Maxus Java and Maxus Sumatra and (B) the


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<PAGE>
                                        - 44 -

               Secretary of State or other appropriate official of the
               States of Alabama, Arkansas, Georgia, Oklahoma and Texas,
               each dated the Second Borrowing Date, as to the good
               standing of, and authority to transact business of, Maxus in
               such States; and

                    (v)  certificates of the Secretary of State or other
               appropriate official of the States of Texas and Oklahoma,
               each dated the Second Borrowing Date, as to the good
               standing of, and authority to transact business of, Midgard
               in such States.

                    (c)  Opinion of Counsel to the Obligors.  Opinions,
                         ----------------------------------
          dated the Second Borrowing Date, of (i) Andrews & Kurth L.L.P.,
          special counsel to YPF and YPF Acquisition, substantially in the
          form of Exhibit D-4 hereto and covering such other matters as the
          Agent or any Lender may reasonably request, (ii) Jones, Day,
          Reavis & Pogue, special counsel to Maxus, substantially in the
          form of Exhibit D-5 hereto and covering such other matters as the
          Agent or any Lender may reasonably request and (iii) McCarter
          Middlebrook, Esq., Vice President and General Counsel of Maxus,
          substantially in the form of Exhibit D-5 hereto and covering such
          other matters as the Agent or any Lender may reasonably request
          (and each Obligor hereby instructs each such counsel to deliver
          such opinion to the Lenders and the Agent).

                    (d)  Opinion of Special New York Counsel to Chase.  An
                         --------------------------------------------
          opinion, dated the Second Borrowing Date, of Milbank, Tweed,
          Hadley & McCloy, special New York counsel to Chase, substantially
          in the form of Exhibit E-3 hereto (and Chase hereby instructs
          each such counsel to deliver such opinion to the Lenders and the
          Agent).

                    (e)  Merger.  Evidence (including a certificate of a
                         ------
          senior officer of YPF to the effect specified in the following
          clauses (i) and (ii)) that (i) all of the conditions precedent to
          the consummation of the Merger specified in the Merger Agreement
          have been satisfied without any modification or waiver (except
          for any such modification or waiver approved by the Majority
          Lenders, such approval not to be unreasonably withheld) and
          (ii) the Merger has been consummated with the effects specified
          in Sections 2.1.3 and 2.1.4 of the Merger Agreement; and
          certified copies of each document or instrument delivered by YPF,
          YPF Acquisition and Maxus and their respective Subsidiaries
          pursuant to or in connection with the Merger Agreement.

                    (f)  Governmental Approvals, Etc.  If and to the extent
                         ---------------------------
          requested by the Agent, evidence (reasonably satisfactory to the
          Agent) that the conditions precedent specified in
          Section 7.01(f)(iv) and (v) hereof continue to be satisfied.



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<PAGE>
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                    (g)  Solvency of Maxus.  A certificate of Maxus and a
                         -----------------
          written opinion of Houlihan Lokey Howard & Zukin, Inc. (or
          another firm of recognized national standing in the field of
          solvency valuation acceptable to the Majority Lenders), each
          dated the Merger Closing Date, confirming that as of such date no
          fact has come to its attention that would lead it to believe that
          the analysis and conclusions stated in the certificate or opinion
          (as the case may be) furnished pursuant to Section 7.01(n) hereof
          are not true and correct in all material respects.

                    (h)  Midgard Facility.  A credit agreement and other
                         ----------------
          documentation required by the Lenders for the extensions of
          credit contemplated to be made under the Midgard Facility shall
          be available for execution in form and substance satisfactory to
          the Lenders, the Agent, the Obligors and the Midgard Group.

                    (i)  Maxus Indonesia Facility.  A credit agreement,
                         ------------------------
          security agreement and other documentation required by the
          Lenders for the extensions of credit contemplated to be made
          under the Maxus Indonesia Facility shall be available for
          execution in form and substance satisfactory to the Lenders, the
          Agent, the Obligors and the Maxus Indonesia Group.

                    (j)  Other Documents.  Such other documents as the
                         ---------------
          Agent or any Lender or special New York counsel to Chase may
          reasonably request.

          The obligation of each Lender to make its Second Loan hereunder
          is also subject to the payment by the Obligors of such fees as
          the Obligors shall have agreed to pay to any Lender, the Agent or
          Chase in connection herewith on or prior to the Second Borrowing
          Date (other than any such fees and expenses paid by the Obligors
          on the Initial Borrowing Date), including without limitation, the
          reasonable fees and expenses of Milbank, Tweed, Hadley & McCloy,
          special New York counsel to Chase and Perez Alati, Grondona,
          Benites, Arntsen & Martinez de Hoz (h), special Argentine counsel
          to Chase, in connection with the negotiation, preparation,
          execution and delivery of this Agreement and the other Basic
          Documents and the documents providing for the other Acquisition
          Financing Transactions and the making of the Loans hereunder and
          thereunder (to the extent that statements for such fees and
          expenses have been delivered to the Obligors and, in the case of
          Milbank, Tweed, Hadley & McCloy, subject to the proviso in
          Section 12.03(a)(i) hereof).

                    7.03  Initial and Second Loans.  The obligation of the
                          ------------------------
          Lenders to make the Loans to be made on the occasion of each
          borrowing hereunder is subject to the further conditions
          precedent that:




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                    (a)  Litigation, Etc.  The Agent shall have received a
                         ---------------
          certificate of a senior officer of each Obligor satisfactory to
          the Agent, dated the date of such borrowing, certifying that
          (except as described in such certificate, in Schedule IV hereto
          or in such Obligor's SEC Reports or Maxus' SEC Reports) there
          exists:  (i) no order, injunction or decree described in
          clause (v)(a) of Section 14 of the Offer to Purchase and no
          statute, rule, regulation or order described in clause (v)(b) of
          said Section 14; (ii) no pending or threatened action, suit,
          litigation or other proceedings by or before any court or
          governmental or regulatory authority relating to the Acquisition
          that seeks to enjoin or otherwise prohibit or in any way modify
          or otherwise affect the Tender Offer or the Merger or any of the
          Acquisition Financing Transactions; and (iii) no other action,
          suit, litigation or other proceedings pending or threatened with
          respect to YPF or Maxus or any of their respective Subsidiaries
          that, individually or in the aggregate, if adversely determined,
          could have a Material Adverse Effect.  In addition, no order,
          injunction, decree, statute, rule or regulation referred to in
          clause (i) above shall prohibit the Tender Offer, the Merger or
          any of the Acquisition Financing Transactions.  Such certificate
          may be stated to be to the knowledge of the Obligors with respect
          to proceedings referred to in the preceding sentence that are
          threatened (but not pending) or to which neither Obligor is a
          party.

                    (b)  Material Adverse Effect, Etc.  The Majority
                         -----------------------------
          Lenders shall not have determined that:  (i) any changes in
          circumstances since December 31, 1994 (including, without
          limitation, any event specified in clauses (v)(a) through (h) of
          Section 14 of the Offer to Purchase and any matters described in
          the certificate delivered pursuant to Section 7.03(a) hereof in
          connection with such borrowing but excluding any proceedings
          referred to in clauses (ii) and (iii) of said Section 7.03(a)
          that are threatened but not pending) have had, or could
          reasonably be expected to have, (x) in the case of the initial
          borrowing hereunder, a Material Adverse Effect or (y) in the case
          of the second borrowing hereunder, a YPF Material Adverse Effect,
          a YPF Acquisition Material Adverse Effect or a Maxus Material
          Adverse Effect; (ii) any Relevant Information disclosed to or
          discovered by Chase or the other Lenders is materially adverse
          with respect to any of the matters referred to in the definition
          of Material Adverse Effect; or (iii) any Relevant Information
          furnished by or on behalf of the Obligors or, after the Initial
          Borrowing Date, Maxus, to Chase or any other Lender in writing
          (other than any thereof which, at the time furnished, either
          Obligor indicated in writing was inaccurate) that proves to have
          been inaccurate, incomplete or misleading at the time furnished
          is materially adverse with respect to either (x) the matters
          referred to in the definition of Material Adverse Effect taken as
          a whole or (y) any of such matters relating to any Refinancing


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<PAGE>
                                        - 47 -

          Subsidiary or any of its Subsidiaries or the Acquisition
          Financing Transaction to which such Refinancing Subsidiary is
          intended to be a party.

                    (c)  No Conflicting Agreements.  The Agent shall have
                         -------------------------
          received (i) a certificate of a senior officer of YPF
          satisfactory to the Agent in form and substance certifying that
          (and setting forth computations in reasonable detail
          demonstrating that), after giving effect to the borrowings
          hereunder, the Liens provided for by the Pledge Agreement and the
          other transactions contemplated hereby to occur in connection
          with the foregoing, YPF is in compliance with the provisions of
          (x) Section 4.7 of the Indenture dated February 2, 1994 between
          YPF and The Bank of New York, N.A., as trustee and
          (y) Section 1007 of the Indenture dated October 7, 1994 between
          YPF and The Bank of New York, N.A., as trustee, and (ii) a
          certificate of a senior officer of Maxus certifying that, after
          giving effect to such borrowings, the consummation of the Merger,
          the assumption provided for by the Assumption Agreement and the
          other transactions contemplated hereby to occur in connection
          with the foregoing, Maxus is in compliance with the provisions of
          each of the Maxus Public Debt Documents (and certifying
          calculations demonstrating compliance with Section 9.1 of the
          Indenture dated as of April 1, 1978 between Diamond Shamrock
          Corporation (as predecessor in interest to Maxus) and Mellon
          Bank, N.A., as trustee, as such Indenture has heretofore been
          modified and supplemented and in effect on the date hereof).

                    (d)  No Default, Etc.  Both immediately prior to such
                         ----------------
          borrowing and also after giving effect thereto and to the
          intended use of the proceeds thereof:

                    (i)  no Default shall have occurred and be continuing;
               and

                   (ii)  the representations and warranties made by each
               Obligor in Section 8 hereof and in each other Basic Document
               to which such Obligor is a party, shall be true and complete
               in all material respects on and as of the date of such
               borrowing (and after giving effect thereto and, in the case
               of the borrowing on the Second Borrowing Date, to the
               Merger) with the same force and effect as if made on and as
               of such date (or, if any such representation or warranty is
               expressly stated to have been made as of a specific date, as
               of such specific date);

          and the Agent shall have received a certificate of a senior
          officer of YPF and, in the case of the second borrowing
          hereunder, Maxus, satisfactory to the Agent in form and substance
          to such effect.



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<PAGE>
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                    (e)  Cash held by Maxus.  The Agent shall have received
                         ------------------
          evidence satisfactory to it that Maxus holds cash and cash
          equivalents and other Permitted Maxus Investments in the amounts
          specified in Section 9.10 hereof.

                    Section 8.  Representations and Warranties.  Each
                                ------------------------------
          Obligor, with respect to Sections 8.01 through 8.14, and YPF,
          with respect to Section 8.15, represents and warrants to the
          Agent and the Lenders that:

                    8.01  Corporate Existence.  The Company:  (a) is a
                          -------------------
          corporation duly organized, validly existing and in good standing
          under the laws of the State of Delaware; (b) has all requisite
          corporate or other power, and has all material governmental
          licenses, authorizations, consents and approvals necessary to own
          its assets and carry on its business as now being or as proposed
          to be conducted; and (c) is qualified to do business and is in
          good standing in all jurisdictions in which the nature of the
          business conducted by it makes such qualification necessary and
          where failure so to qualify could reasonably be expected to
          (either individually or in the aggregate) have a YPF Acquisition
          Material Adverse Effect or (prior to the Control Transfer Date,
          to the knowledge of the Obligors) a Maxus Material Adverse
          Effect.

                    8.02  Litigation.  Except as disclosed in Schedule IV
                          ----------
          hereto or in YPF's SEC Reports or Maxus' SEC Reports, there are
          no legal or arbitral proceedings, or any proceedings by or before
          any governmental or regulatory authority or agency, now pending
          or (to the knowledge of the Obligors) threatened, against (a) YPF
          or any of its Subsidiaries, (b) (prior to the Control Transfer
          Date, to the knowledge of the Obligors) Maxus or any of its
          Subsidiaries or (c) (prior to the Control Transfer Date, to the
          knowledge of the Obligors with respect to proceedings to which
          neither Obligor is a party) relating to the Tender Offer, the
          Merger or the other transactions contemplated hereby (including,
          without limitation, any of the Acquisition Financing
          Transactions) which could reasonably be expected to be adversely
          determined and, if adversely determined, could (individually or
          in the aggregate) have a YPF Material Adverse Effect,
          YPF Acquisition Material Adverse Effect or (prior to the Control
          Transfer Date, to the knowledge of the Obligors), a Maxus
          Material Adverse Effect.

                    8.03  No Breach.
                          ---------

                    (a)  None of the Tender Offer, the Merger, the
          Acquisition Financing Transactions and the other transactions
          contemplated hereby or by the other Transaction Documents
          (including, without limitation, the execution, delivery and
          performance of any of the Transaction Documents by the respective


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<PAGE>
                                        - 49 -

          parties thereto) will result in a breach of or require any
          modification, waiver or consent (other than any thereof already
          effected or obtained and certified copies of which have been
          furnished to the Agent and other than consents with respect to
          either of the Refinancing Facilities which are reasonably
          expected to be obtained at or prior to the initial loans
          thereunder) under, the charter or by-laws or equivalent documents
          of YPF or YPF Acquisition or (prior to the Control Transfer Date,
          to the knowledge of the Obligors) Maxus or any of Maxus'
          Subsidiaries or any agreement or instrument to which YPF or
          YPF Acquisition or (prior to the Control Transfer Date, to the
          knowledge of the Obligors) Maxus or any of Maxus' Subsidiaries is
          a party or by which any of such Persons or any of its Property is
          bound or to which it is subject, or constitute a default under,
          or require any of such Persons to prepay, purchase, redeem or
          otherwise acquire any Indebtedness or securities of or issued by
          such Person or any of its Subsidiaries under, any of such
          agreement or instrument, or (except for Liens referred to in the
          definition of Acquisition Financing Transactions) result in the
          creation or imposition of any Lien upon any Property of any of
          such Persons pursuant to the terms of any such agreement or
          instrument other than any such agreements and instruments
          evidencing, providing for or otherwise relating to Indebtedness
          and securities of YPF and its Subsidiaries (other than Maxus and
          its Subsidiaries) or Maxus and its Subsidiaries (other than the
          Refinancing Subsidiaries and their respective Subsidiaries) in an
          aggregate principal amount of (or, in the case of securities not
          evidencing Indebtedness that are required to be acquired as
          aforesaid, having an aggregate acquisition cost to YPF and its
          Subsidiaries or Maxus and its Subsidiaries, as the case may be)
          less than $5,000,000.

                    (b)  None of the execution, delivery and performance of
          this Agreement and the other Basic Documents (including, without
          limitation, borrowings hereunder and the Liens provided for by
          the Basic Documents) will violate any requirements of applicable
          law or regulation or any order, writ, injunction or decree of any
          court or governmental or regulatory authority or agency ("Legal
                                                                    -----
          Requirements") other than any Legal Requirements the violation of
          ------------
          which, individually or in the aggregate, could not reasonably be
          expected to have a YPF Material Adverse Effect, a YPF Acquisition
          Material Adverse Effect or (prior to the Control Transfer Date,
          to the knowledge of the Obligors) a Maxus Material Adverse
          Effect.

                    (c)  Except as specifically described in the Offer to
          Purchase or in Schedule VII hereto, none of the Tender Offer, the
          Merger and the other transactions contemplated by the Acquisition
          Documents (including, without limitation, the execution, delivery
          and performance of any of the Acquisition Documents by the
          respective parties thereto) will violate any Legal Requirements


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<PAGE>
                                        - 50 -

          applicable to YPF or YPF Acquisition or (prior to the Control
          Transfer Date, to the knowledge of the Obligors) Maxus or any of
          its Subsidiaries other than any Legal Requirements the violation
          of which, individually or in the aggregate, could not reasonably
          be expected to have a YPF Material Adverse Effect, a
          YPF Acquisition Material Adverse Effect or a Maxus Material
          Adverse Effect.

                    8.04  Action.  Each Obligor has all necessary corporate
                          ------
          power, authority and legal right to execute, deliver and perform
          its obligations under each of the Transaction Documents to which
          it is a party; the execution, delivery and performance by each
          Obligor of each of the Transaction Documents to which it is a
          party has been duly authorized by all necessary corporate action
          on its part (including, without limitation, any approvals of its
          shareholders); each of the Transaction Documents to which each of
          the Obligors is a party has been duly and validly executed and
          delivered by it; and each of this Agreement, the Offer to
          Purchase (in the case of YPF Acquisition) and the Merger
          Agreement constitutes, and each of the Notes and the other
          Transaction Documents to which each of the Obligors is or is
          intended to be a party when executed and delivered by it (in the
          case of the Notes, for value), will constitute, the legal, valid
          and binding obligation of such Obligor, enforceable against it in
          accordance with its terms, except as such enforceability may be
          limited by (a) bankruptcy, insolvency, reorganization, moratorium
          or similar laws of general applicability affecting the
          enforcement of creditors' rights and (b) the application of
          general principles of equity (regardless of whether such
          enforceability is considered in a proceeding in equity or at
          law).

                    8.05  Approvals.  No authorizations, approvals or
                          ---------
          consents of, and no filings or registrations with, any
          governmental or regulatory authority or agency, or any securities
          exchange, are necessary for the execution, delivery or
          performance by either Obligor of any of the Basic Documents to
          which it is a party or for the legality, validity or
          enforceability thereof, except for any thereof the failure of
          which to be obtained or effected could not, individually or in
          the aggregate, reasonably be expected to have a YPF Material
          Adverse Effect, a YPF Acquisition Material Adverse Effect or a
          Maxus Material Adverse Effect.  Except as specifically described
          in the Acquisition Documents or in Schedule VII hereto, no
          authorizations, approvals or consents of, and no filings or
          registrations with, any governmental or regulatory authority or
          agency, or any securities exchange, are necessary for the
          execution, delivery and performance by either Obligor or (prior
          to the Control Transfer Date, to the knowledge of the Obligors)
          Maxus of any of the Acquisition Documents, the Acquisition or for
          any of the other transactions contemplated thereby, except for


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<PAGE>
                                        - 51 -

          any thereof the failure of which to be obtained or effected could
          not, individually or in the aggregate, reasonably be expected to
          have a YPF Material Adverse Effect, a YPF Acquisition Material
          Adverse Effect or (prior to the Control Transfer Date, to the
          knowledge of the Obligors) a Maxus Material Adverse Effect.

                    8.06  Use of Credit.  Neither Obligor is engaged
                          -------------
          principally, or as one of its important activities, in the
          business of extending credit for the purpose, whether immediate,
          incidental or ultimate, of buying or carrying Margin Stock. 
          Neither the making of any of the Loans hereunder nor the use of
          the proceeds thereof will violate or be inconsistent with the
          provisions of Regulation G, U or X.

                    8.07  Investment Company Act.  Neither Obligor nor any
                          ----------------------
          of its Subsidiaries (including, without limitation, the Company)
          is an "investment company", or a company "controlled" by an
          "investment company", within the meaning of the Investment
          Company Act of 1940, as amended.

                    8.08  Public Utility Holding Company Act.  Neither
                          ----------------------------------
          Obligor nor any of its Subsidiaries is a "holding company", or an
          "affiliate" of a "holding company" or a "subsidiary company" of a
          "holding company", within the meaning of the Public Utility
          Holding Company Act of 1935, as amended.

                    8.09  Certain Documents.  Prior to the date hereof, the
                          -----------------
          Obligors have furnished to the Agent and the Lenders true and
          complete copies of the following documents, each as in effect on
          such date:  (a) the Acquisition Documents, (b) the YPF Debt
          Documents, (c) the Maxus Public Debt Documents, and (d) the
          Certificate of Incorporation of Maxus.

                    8.10  Capitalization of Company.  The authorized
                          -------------------------
          capital stock of YPF Acquisition consists, on the date hereof, of
          an aggregate of 155,000,000 shares of common stock, par value
          $.01 per share, of which 135,590,277 shares are duly and validly
          issued and outstanding, each of which shares is fully paid and
          nonassessable.  As of the date hereof all of such issued and
          outstanding shares of common stock are owned beneficially and of
          record by YPF.  As of the date hereof, there are no outstanding
          Equity Rights with respect to YPF Acquisition.

                    8.11  True and Complete Disclosure.  The information,
                          ----------------------------
          reports (including, without limitation, hydrocarbon engineering
          reports), financial statements, exhibits and schedules furnished
          in writing by or on behalf of the Obligors to the Agent or any
          Lender in connection with the negotiation, preparation or
          delivery of this Agreement and the other Basic Documents or
          included herein or therein or delivered pursuant hereto, when
          taken as a whole and when considered with respect to each of the


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<PAGE>
                                        - 52 -

          Refinancing Subsidiaries and their respective Subsidiaries, to
          the actual knowledge of each Obligor, do not contain any untrue
          statement of material fact or omit to state any material fact
          necessary to make the statements herein or therein, in light of
          the circumstances under which they were made, not misleading. 
          The Obligors have not delivered any information to the Agent or
          any Lender relating to general economic conditions in South
          America, and in particular, Argentina.  All written information
          furnished after the date hereof by or on behalf of the Obligors
          to the Agent or the Lenders in connection with this Agreement and
          the other Basic Documents and the transactions contemplated
          hereby and thereby will be true, complete and accurate in every
          material respect, or (in the case of projections) based on
          reasonable estimates, on the date as of which such information is
          stated or certified.  There is no fact known to either Obligor
          that could reasonably be expected to have a YPF Material Adverse
          Effect, a YPF Acquisition Material Adverse Effect or a Maxus
          Material Adverse Effect that has not been disclosed herein, in
          the other Basic Documents or in the Acquisition Documents
          (including in each case the exhibits and schedules thereto) or in
          a report, financial statement, exhibit, schedule, disclosure
          letter or other writing furnished to the Lenders for use in
          connection with the transactions contemplated hereby or thereby. 

                    8.12  Pledge Agreement.  The Pledge Agreement creates,
                          ----------------
          as security for the Secured Obligations (as defined in the Pledge
          Agreement), a valid and enforceable first priority perfected
          pledge and security interest in and to all of the Pledged Stock
          (as defined in the Pledge Agreement) in favor of the Agent for
          the benefit of the Lenders, subject to no other Liens. 

                    8.13  Special Purpose Corporation.  Prior to the Tender
                          ---------------------------
          Offer Closing Date, YPF Acquisition will have (a) no material
          assets other than the cash proceeds referred to in
          Section 7.01(i) hereof and Investments referred to in
          Section 9.08(b) hereof and its rights and interests under the
          Acquisition Documents to which it is a party and (b) no
          Indebtedness, and no material obligations other than its
          obligations under the Transaction Documents.

                    8.14  Transaction Costs.  The Transaction Costs,
                          -----------------
          exclusive of any payments (a) made by YPF or YPF Acquisition to
          former employees of Maxus with respect to so called "golden
          parachutes" and (b) made by YPF or YPF Acquisition with respect
          to the "poison pill" under the Certificate of Incorporation of
          Maxus, will not exceed $35,000,000.

                    8.15  YPF Representations.  YPF hereby represents and
                          -------------------
          warrants to the Agent and the Lenders that each of the
          representations and warranties set forth in Schedule I hereto are
          true and complete.


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<PAGE>
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                    Section 9.  Covenants of Obligors.  Each Obligor
                                ---------------------
          covenants and agrees with the Lenders and the Agent that, so long
          as any Commitment or Loan is outstanding and until payment in
          full of all amounts payable by the Company hereunder:

                    9.01  Financial Statements, Etc.  YPF shall deliver or
                          --------------------------
          cause to be delivered to the Agent (and the Agent shall deliver
          to each Lender) the following:

                    (a)  on and after the Control Transfer Date (or prior
          thereto, if either Obligor has received the same), as soon as
          available and in any event within 45 days after the end of the
          first quarterly fiscal period of the 1995 fiscal year of Maxus,
          (i) consolidated statements of income, retained earnings and cash
          flows of (A) Maxus and its Subsidiaries and (B) Midgard and
          (ii) consolidated and consolidating statements of income,
          retained earnings and cash flows of Maxus Indonesia for such
          period and for the period from the beginning of such fiscal year
          to the end of such period, and the related (i) consolidated
          balance sheets of (A) Maxus and its Subsidiaries and (B) Midgard
          and (ii) consolidated and consolidating balance sheets of Maxus
          Indonesia, respectively as at the end of such period, setting
          forth in each case in comparative form the corresponding
          consolidated and consolidating figures for the corresponding
          periods in the preceding fiscal year (except that, (i) in the
          case of balance sheets, such comparison shall be to the last day
          of the prior fiscal year and (ii) comparative consolidating
          figures shall not be required for any period prior to the Merger
          Closing Date), accompanied by a certificate of a senior officer
          of Maxus, which certificate shall state that said consolidated
          financial statements fairly present in all material respects the
          consolidated financial condition and results of operations of
          Maxus and its Subsidiaries, Midgard and Maxus Indonesia, as the
          case may be, and said consolidating financial statements fairly
          present in all material respects the respective individual
          unconsolidated financial condition and results of operations of
          Maxus Indonesia and of each of its Subsidiaries, in each case in
          accordance with GAAP (subject to normal year-end audit
          adjustments); 

                    (b)  on and after the Control Transfer Date (or prior
          thereto, if either Obligor has received the same), promptly upon
          their becoming available, copies of all registration statements
          and regular periodic reports that Maxus shall have filed with the
          Commission or any national securities exchange;

                    (c)  on and after the Control Transfer Date (or prior
          thereto, if either Obligor has received the same), promptly upon
          the mailing thereof to the holders of any class or classes of
          shares of capital stock of Maxus generally (other than solely to
          YPF as holder of outstanding common stock of Maxus) or to holders


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<PAGE>
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          of Indebtedness of Maxus under the Maxus Public Debt Documents
          generally, copies of all financial statements, reports and proxy
          statements so mailed (to the extent not delivered under
          paragraph (b) above);

                    (d)  on and after the Control Transfer Date (or prior
          thereto, if either Obligor actually becomes aware thereof), as
          soon as possible, and in any event within ten days after Maxus
          knows or has reason to believe that any of the events or
          conditions specified below with respect to any Plan or
          Multiemployer Plan has occurred or exists, a statement signed by
          a senior financial officer of Maxus setting forth details
          respecting such event or condition and the action, if any, that
          Maxus or an ERISA Affiliate proposes to take with respect thereto
          (and a copy of any report or notice required to be filed with or
          given to the PBGC by Maxus or an ERISA Affiliate with respect to
          such event or condition):

                    (i)  any reportable event, as defined in
               Section 4043(b) of ERISA and the regulations issued
               thereunder, with respect to a Plan, as to which the PBGC has
               not by regulation waived the requirement of Section 4043(a)
               of ERISA that it be notified within 30 days of the
               occurrence of such event (provided that a failure to meet
                                         --------
               the minimum funding standard of Section 412 of the Code or
               Section 302 of ERISA, including, without limitation, the
               failure to make on or before its due date a required
               installment under Section 412(m) of the Code or
               Section 302(e) of ERISA, shall be a reportable event
               regardless of the issuance of any waivers in accordance with
               Section 412(d) of the Code); and any request for a waiver
               under Section 412(d) of the Code for any Plan;

                   (ii)  the distribution under Section 4041(c) of ERISA of
               a notice of intent to terminate any Plan or any action taken
               by Maxus or an ERISA Affiliate to terminate any Plan;

                  (iii)  the institution by the PBGC of proceedings under
               Section 4042 of ERISA for the termination of, or the
               appointment of a trustee to administer, any Plan, or the
               receipt by Maxus or any ERISA Affiliate of a notice from a
               Multiemployer Plan that such action has been taken by the
               PBGC with respect to such Multiemployer Plan;

                   (iv)  the complete or partial withdrawal from a
               Multiemployer Plan by Maxus or any ERISA Affiliate that
               results in liability under Section 4201 or 4204 of ERISA
               (including the obligation to satisfy secondary liability as
               a result of a purchaser default) or the receipt by Maxus or
               any ERISA Affiliate of notice from a Multiemployer Plan that
               it is in reorganization or insolvency pursuant to


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               Section 4241 or 4245 of ERISA or that it intends to
               terminate or has terminated under Section 4041A of ERISA;

                    (v)  the institution of a proceeding by a fiduciary of
               any Multiemployer Plan against Maxus or any ERISA Affiliate
               to enforce Section 515 of ERISA, which proceeding is not
               dismissed within 30 days; and

                   (vi)  the adoption of an amendment to any Plan that,
               pursuant to Section 401(a)(29) of the Code or Section 307 of
               ERISA, would result in the loss of tax-exempt status of the
               trust of which such Plan is a part if Maxus or an ERISA
               Affiliate fails to timely provide security to the Plan in
               accordance with the provisions of said Sections;

                    (e)  promptly after either Obligor becomes aware
          thereof, notice of the occurrence of (i) any event specified in
          clauses (v)(a) through and including (v)(h) of Section 14 of the
          Offer to Purchase or (ii) any other event, condition or
          circumstance that (individually or in the aggregate) has resulted
          in or could reasonably be expected to result in any of the
          consequences referred to in subclauses (1) through (4) of
          clause (v)(a) of said Section 14 or has or could have a Material
          Adverse Effect.

                    (f)  promptly after either Obligor knows or has reason
          to believe that any Default has occurred, a notice of such
          Default describing the same in reasonable detail and, together
          with such notice or as soon thereafter as possible, a description
          of the action that the Obligors have taken or propose to take
          with respect thereto; 

                    (g)  On or prior to the date immediately preceding the
          Merger Closing Date, YPF shall cause each of Midgard, Maxus
          Indonesia, Maxus Java and Maxus Sumatra, to deliver pro forma
          financial statements (including a pro forma balance sheet dated
          March 31, 1995 giving effect to the Merger, the recapitalization
          and reorganization of certain Subsidiaries of Maxus contemplated
          to occur on or prior to the Merger Closing Date and any other
          transactions or events contemplated to occur on or before the
          Merger Closing Date (other than in the ordinary course of
          business) reflecting the pro forma financial condition, income,
          expenses and cash flow for each of Maxus, Midgard, Maxus
          Indonesia, Maxus Java and Maxus Sumatra (as at said date and for
          the period from the beginning of the respective fiscal year of
          each such Person to such date), such financial statements to be
          in form and substance satisfactory to the Majority Lenders
          (collectively, the "Refinancing Balance Sheets"), in each case,
                              --------------------------
          accompanied by a certificate of a senior financial officer of
          each such Person, which shall state that said financial
          statements fairly present in all material respects the respective


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<PAGE>
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          pro forma financial condition of such Person as at said date and
          for such period in accordance with GAAP; and 

                    (h)  from time to time such other information regarding
          the Acquisition or the condition (financial or otherwise),
          business, operations, assets or liabilities of any of
          YPF Acquisition and (prior to the Control Transfer Date, to the
          extent either Obligor shall have access to such information)
          Maxus and its Subsidiaries as any Lender or the Agent may
          reasonably request.

          YPF will furnish or cause to be furnished to the Agent, at the
          time financial statements are furnished pursuant to paragraph (a)
          above, a certificate of a senior officer of YPF (i) to the effect
          that no Default has occurred and is continuing (or, if any
          Default has occurred and is continuing, describing the same in
          reasonable detail and describing the action that the Obligors
          have taken or propose to take with respect thereto) and
          (ii) setting forth in reasonable detail the computations
          necessary to determine whether the Obligors are in compliance
          with their obligations under Section 9.10 hereof (and under such
          of the other provisions of this Section 9 as the Agent may
          reasonably request) as of the end of the quarterly fiscal period
          covered by such statements.

                    9.02  Litigation; Etc.  YPF will give or cause to be
                          ----------------
          given to the Agent, promptly upon becoming aware thereof, notice
          of all legal or arbitral proceedings, and of all proceedings by
          or before any governmental or regulatory authority or agency, and
          any material development in respect of any of such proceedings,
          relating to or affecting (a) the Acquisition or any of the
          Acquisition Financing Transactions or (b) YPF, YPF Acquisition or
          Maxus or any of its Subsidiaries, except proceedings that, if
          adversely determined, could not (either individually or in the
          aggregate) reasonably be expected to have a YPF Material Adverse
          Effect, a YPF Acquisition Material Adverse Effect or (prior to
          the Control Transfer Date, to the knowledge of the Obligors) a
          Maxus Material Adverse Effect.  In addition, YPF will give or
          cause to be given to the Agent and each Lender, promptly upon
          becoming aware that the holder of any note or of any other
          evidence of Indebtedness of Maxus or any of its Subsidiaries
          having, individually or in the aggregate, an outstanding
          principal balance of $1,000,000 has given notice or taken any
          other action with respect to a claimed default or event of
          default (or similar event), notice of such event and specifying
          the notice given or action taken by such holder and the nature of
          the claimed default or event of default (or similar event) and






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          any action being taken (or proposed to be taken) by YPF or Maxus
          to remedy the same.

                    9.03  Existence, Etc.  Prior to and on and after the
                          ---------------
          Control Transfer Date, YPF will cause YPF Acquisition, and on and
          after the Control Transfer Date, Maxus and each Material
          Subsidiary to:

                    (a)  preserve and maintain its legal existence and all
          of its material rights, privileges, licenses and franchises
          provided that:  (i) subject to Sections 9.12 and 9.13 hereof,
          --------
          nothing in this Section 9.03(a) shall prohibit any transaction
          not prohibited by Sections 9.05, 9.12 or 9.13 hereof; and
          (ii) notwithstanding anything in this Section 9.03(a) or in
          Section 9.05 hereof or any other provision of this Agreement, any
          one or more members (whether one or more, a "Refinancing Party")
                                                       -----------------
          of the Midgard Group or the Maxus Indonesia Group (the "Related
                                                                  -------
          Group") may merge with or into, or consolidate with or sell,
          -----
          lease, transfer or otherwise dispose of all or substantially all
          its or their assets to, or engage in any joint venture or other
          transaction (otherwise hereby prohibited) with, any other Person
          or Persons (a "Permitted Transaction"), if (x) concurrently
                         ---------------------
          therewith the Obligors, or either of them, shall prepay a
          principal amount of the Loans equal to that which would have been
          refinanced by the Refinancing Facility to which such Refinancing
          Party (or one or more other members of the Related Group) is
          intended to be a party, together with all accrued interest
          thereon, and (y) such Permitted Transaction does not have and
          could not reasonably be expected to have a Maxus Material Adverse
          Effect (other than with respect to such Refinancing Party (and/or
          one or more of such other members of the Related Group) and/or
          such Refinancing Facility, including, without limitation, the
          income of any such Person);

                    (b)  comply with the requirements of all applicable
          laws, rules, regulations and orders of governmental or regulatory
          authorities if failure to comply with such requirements could
          (either individually or in the aggregate) not reasonably be
          expected to have a Material Adverse Effect;

                    (c)  pay and discharge all taxes, assessments and
          governmental charges or levies imposed on it or on its income or
          profits or on any of its Property prior to the date on which
          penalties attach thereto, except for any such tax, assessment,
          charge or levy the payment of which is being contested in good
          faith and by proper proceedings and against which adequate
          reserves are being maintained to the extent required by GAAP;

                    (d)  maintain all of its Properties used or useful in
          its business in good working order and condition, ordinary wear
          and tear excepted;


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                    (e)  keep adequate records and books of account, in
          which complete entries will be made in accordance with GAAP; and

                    (f)  permit representatives of any Lender or the Agent,
          during normal business hours and at the expense of such Lender or
          the Agent (as the case may be), to examine, copy and make
          extracts from its books and records, to inspect any of its
          Properties, and to discuss its business and affairs with its
          officers, all to the extent reasonably requested by such Lender
          or the Agent (as the case may be).

                    9.04  Insurance.  On and after the Control Transfer
                          ---------
          Date, YPF will cause Maxus and each Material Subsidiary to
          maintain insurance with financially sound and reputable insurance
          companies or to self insure, and with respect to Property and
          risks of a character usually maintained by corporations engaged
          in the same or similar business similarly situated, against loss,
          damage and liability of the kinds and in the amounts customarily
          maintained by such corporations.

                    9.05  Prohibition of Fundamental Changes.  (a)  On and
                          ----------------------------------
          after the Control Transfer Date, YPF will not permit any of Maxus
          and the Material Subsidiaries to enter into any transaction of
          merger or consolidation or amalgamation, or liquidate, wind up or
          dissolve itself (or suffer any liquidation or dissolution),
          except for the Merger and except as described in Schedule VIII
          hereto.

                    (b)  On and after the Control Transfer Date YPF will
          cause:  (i) Maxus and each of its Subsidiaries to, conduct their
          respective businesses only in, and not take any action except in,
          the ordinary and usual course of business substantially
          consistent with past practice, (ii) except as described in
          Schedule VIII hereto, Maxus to preserve intact the business
          organization of Maxus and each of the Material Subsidiaries,
          (iii) Maxus and each of the Material Subsidiaries to use their
          respective reasonable best efforts to preserve the goodwill of
          Persons having business relationships with it or its Material
          Subsidiaries, (iv) except as described in Schedule VIII hereto,
          each of the Material Subsidiaries not to permit or propose any
          change or amendment to their respective certificates of
          incorporation or by-laws (or comparable governing instruments),
          except as may be required by law, (v) Maxus or any Subsidiary of
          Maxus not to authorize for issuance, issue, sell or deliver any
          shares of capital stock or any other securities of any of them
          (other than, in the case of Maxus, pursuant to Equity Rights with
          respect to Maxus outstanding on the date hereof (after giving
          effect to the transactions contemplated hereby and under the
          Acquisition Documents to occur on the Initial Borrowing Date)) or
          issue any securities convertible into or exchangeable for, or
          options, warrants to purchase, scrip, rights to subscribe for,


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<PAGE>
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          calls or commitments of any character whatsoever relating to, or
          enter into any contract with respect to the issuance of, any
          shares of capital stock or any other securities of any of them
          (other than Equity Rights with respect to Maxus outstanding on
          the date hereof (after giving effect to the transactions
          contemplated hereby and under the Acquisition Documents to occur
          on the Initial Borrowing Date)), purchase or otherwise acquire or
          enter into any contract with respect to the purchase or voting of
          shares of their capital stock, or adjust, split, combine or
          reclassify any of their capital stock or other securities, or
          make any other similar changes in their capital structures.

                    9.06  Limitation on Liens.  On and after the Control
                          -------------------
          Transfer Date, YPF will not permit Maxus or any of its
          Subsidiaries to create, incur, assume or suffer to exist any Lien
          upon any of its Property, whether now owned or hereafter
          acquired, except (subject to Sections 9.12 and 9.13 hereof):

                    (a)  Liens provided for by the Basic Documents;

                    (b)  Liens in existence on the Control Transfer Date;

                    (c)  Liens imposed by any governmental authority for
               taxes, assessments or charges not yet due or that are being
               contested in good faith and by appropriate proceedings if,
               unless the amount thereof is not material, adequate reserves
               with respect thereto are maintained on the books of Maxus
               and its Subsidiaries in accordance with GAAP;

                    (d)  carriers', warehousemen's, mechanics',
               materialmen's, repairmen's or other like Liens arising in
               the ordinary course of business that are not overdue for a
               period of more than 30 days or that are being contested in
               good faith and by appropriate proceedings and Liens securing
               judgments but only to the extent for an amount and for a
               period not resulting in an Event of Default under
               Section 10(h) hereof;

                    (e)  pledges or deposits under worker's compensation,
               unemployment insurance and other social security
               legislation;

                    (f)  deposits to secure the performance of bids, trade
               contracts (other than for Indebtedness), leases, statutory
               obligations, surety and appeal bonds, performance bonds and
               other obligations of a like nature incurred in the ordinary
               course of business;

                    (g)  easements, rights-of-way, restrictions and other
               similar encumbrances incurred in the ordinary course of
               business and encumbrances consisting of zoning restrictions,


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               easements, licenses, restrictions on the use of Property or
               minor imperfections in title thereto that, in the aggregate,
               are not material in amount, and that do not in any case
               materially detract from the value of the Property subject
               thereto or interfere with the ordinary conduct of the
               business of Maxus and its Subsidiaries;

                    (h)  Liens on Property of any corporation that becomes
               a Subsidiary of Maxus after the date hereof, provided that
               such Liens are in existence at the time such corporation
               becomes a Subsidiary of Maxus and were not created in
               anticipation thereof;

                    (i)  Liens upon real and/or tangible personal Property
               acquired after the date hereof (by purchase, construction or
               otherwise) by any of the Subsidiaries, each of which Liens
               either (A) existed on such Property before the time of its
               acquisition and was not created in anticipation thereof or
               (B) was created solely for the purpose of securing
               Indebtedness representing, or incurred to finance, refinance
               or refund, the cost (including the cost of construction) of
               such Property; provided that (i) no such Lien shall extend
                              --------
               to or cover any Property of any such Subsidiary other than
               the Property so acquired and improvements thereon, (ii) the
               principal amount of Indebtedness secured by any such Lien
               shall at no time exceed 60% (except for Liens on crude oil
               to secure the Indebtedness to Caisse Nationale de Credit
               Agricole Geneva Branch permitted pursuant to Section 9.07(b)
               hereof) of the fair market value (as determined in good
               faith by a senior officer of Maxus) of such Property at the
               time it was acquired (by purchase, construction or
               otherwise) and (iii) no such Lien shall be incurred in
               connection with any Production Payment unless the Company,
               as promptly as reasonably practicable, and in any event
               within ten days after the creation of such Lien, provides
               the Agent with information concerning the Production Payment
               which gave rise to such Lien and delivers to the Agent,
               promptly upon request, such additional information
               concerning such Production Payment or such Lien as the Agent
               or any Lender may reasonably request;

                    (j)  licenses, leases or subleases granted to others in
               the ordinary course of business not materially interfering
               with the conduct of the business of Maxus and its
               Subsidiaries taken as a whole;

                    (k)  statutory and contractual landlords' liens under
               leases to which Maxus or any of its Subsidiaries is a party;





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                    (l)  any interest or title of a lessor, sublessor,
               licensee or licensor under any lease or license agreement
               permitted by this Agreement;

                    (m)  Liens in favor of a banking institution arising as
               a matter of law encumbering deposits (including the right of
               set-off) held by such banking institutions incurred in the
               ordinary course of business and which are within the general
               parameters customary in the banking industry;

                    (n)  Liens in favor of customs and revenue authorities
               arising as a matter of law to secure the payment of customs'
               duties in connection with the importation of goods;

                    (o)  Liens for farm-in, farm-out, joint operating, area
               of mutual interest agreements or similar agreements entered
               into by Maxus or any of its Subsidiaries in the ordinary
               course of business which such Person determines in good
               faith to be necessary for or advantageous to the economic
               development of their Properties; provided that no such Liens
                                                --------
               shall be granted upon Property that has Proved Reserves
               exceeding 50% of the aggregate value of hydrocarbon reserves
               estimated to be contained in such Property;

                    (p)  any extension, renewal or replacement of the
               foregoing, provided that the Liens permitted hereunder shall
                          --------
               not be spread to cover any additional Indebtedness or
               Property (other than a substitution of like Property); and

                    (q)  Liens on Maxus Shares permitted by Section 9.12
               hereof.

                    9.07  Indebtedness.  On and after the Control Transfer
                          ------------
          Date, YPF will not permit Maxus or any of its Subsidiaries to
          create, incur or suffer to exist any Indebtedness except (subject
          to Sections 9.12 and 9.13 hereof):

                    (a)  Indebtedness to the Lenders hereunder and
               Indebtedness under the Refinancing Facilities; and

                    (b)  Indebtedness incurred in the ordinary course of
               business and consistent with past practices (including,
               without limitation, Indebtedness of Maxus, Maxus Energy
               Trading Company, Maxus Sumatra and Maxus Java to Caisse
               Nationale de Credit Agricole Geneva Branch under a certain
               letter agreement dated January 11, 1994 between such Persons
               in an amount up to but not exceeding $28,000,000 at any one
               time outstanding).

                    9.08  Investments.  On and after the Control Transfer
                          -----------
          Date, YPF will not permit Maxus or any of the Material


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          Subsidiaries to make or permit to remain outstanding any
          Investments except (subject to Sections 9.12 and 9.13 hereof):

                    (a)  Investments outstanding on the Control Transfer
               Date; and

                    (b)  additional Investments made in the ordinary course
               of business and consistent with past practices.

                    9.09  Dividend Payments.  On and after the Control
                          -----------------
          Transfer Date, YPF will not permit Maxus to declare or make any
          Dividend Payment at any time other than regularly scheduled
          Dividend Payments made by Maxus in respect of Maxus Preferred
          Shares.  Subject to Sections 9.12 and 9.13 hereof, nothing herein
          shall be deemed to prohibit Dividend Payments to any Relevant
          Subsidiary by any other Relevant Subsidiary that is a Subsidiary
          of such Relevant Subsidiary.

                    9.10  Maxus Cash.  On and after the Control Transfer
                          ----------
          Date, YPF will not permit (a) the aggregate amount of cash and
          cash equivalents and other Permitted Maxus Investments of Maxus
          and its Subsidiaries to be less than $160,000,000 at any time and
          (b) the aggregate amount of Unrestricted cash and cash
          equivalents and other Permitted Maxus Investments of Maxus and
          its consolidated Subsidiaries to be less than $134,000,000 (or
          such lesser amount as shall be equal to the principal of the
          Loans, interest thereon and other amounts at the time of the
          determination thereof are estimated in reasonably good faith by
          Maxus to be paid by Maxus to the Agent and the Lenders hereunder
          on the Maturity Date other than from (i) the proceeds of the
          loans contemplated to be made under the Refinancing Facilities
          and (ii) any proceeds from any transaction permitted pursuant to
          the proviso at the end of Section 9.03(a) hereof).  As used in
          this Section 9.10, "Unrestricted" shall mean, when used with
          respect to cash, cash equivalents and other Permitted Maxus
          Investments, that any of the foregoing is subject to no
          restrictions on the use thereof by Maxus and its Subsidiaries
          pursuant to any agreement or understanding with any other Person
          nor is set aside for nor dedicated to, any particular uses other
          than the payment of the principal of Loans, interest thereon and
          other amounts payable hereunder to the Agent and the Lenders on
          the Maturity Date.

                    9.11  Ownership of Refinancing Subsidiaries.  On and
                          -------------------------------------
          after the Control Transfer Date, YPF shall, and shall cause the
          Company to, take such action from time to time as shall be
          necessary to ensure that each of the Refinancing Subsidiaries and
          its Subsidiaries is a Wholly-Owned Subsidiary of Maxus at all
          times.




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                    9.12  Special Covenants relating to YPF Acquisition
                          ---------------------------------------------
          Prior to Merger.  Notwithstanding anything contained in this
          ---------------
          Agreement to the contrary, YPF Acquisition will not, prior to the
          consummation of the Merger:  (a) incur, assume or have
          outstanding any Indebtedness or other liabilities or obligations
          except for Indebtedness and other liabilities and obligations
          under the Basic Documents and liabilities or obligations not
          constituting Indebtedness which are incurred under or in
          connection with the Acquisition Documents, the Tender Offer or
          the Merger and the other transactions contemplated hereby;
          (b) sell or otherwise dispose of any Maxus Shares except for any
          such disposition for cash in Dollars at a price at least equal to
          the fair market value thereof, provided that YPF Acquisition
          shall pay the proceeds thereof to the Agent for credit to the
          collateral account referred to in the last sentence of this
          Section 9.12; (c) incur, assume or suffer to exist any Liens on
          its Property other than Liens on Maxus Shares; (d) make any
          Investment other than in Maxus Shares and in Investments in
          operating deposit accounts with money center banks located in the
          United States and Permitted Investments; (e) make any Dividend
          Payment; (f) engage in any business or transactions other than
          those associated with the Tender Offer, the Merger, borrowings
          hereunder and the other transactions contemplated hereby; or
          (g) merge or consolidate with any other entity except with Maxus
          pursuant to the Merger Agreement.  All proceeds of dispositions
          of Maxus Shares permitted by clause (b) above paid to the Agent
          as provided in said clause (b) shall be credited by the Agent to
          a collateral account maintained by YPF Acquisition at the
          Principal Office and held by the Agent (together with the
          Permitted Investments referred to below) in pledge as security
          for the payment and performance by YPF Acquisition when due of
          its obligations hereunder and under the Notes (with the balance
          in such account to be invested and reinvested by the Agent in
          Permitted Investments (to be held in such account) specified by
          YPF Acquisition or, if an Event of Default has occurred and is
          continuing, by the Agent), all on terms and conditions, and
          pursuant to agreements executed and delivered by YPF Acquisition
          and the Agent, reasonably satisfactory to the Agent (and,
          YPF Acquisition agrees to execute and deliver such agreements to
          the Agent upon the request of the Agent).

                    9.13  Special Covenants relating to Midgard Group and
                          -----------------------------------------------
          the Maxus Indonesia Group and their Subsidiaries. 
          ------------------------------------------------
          Notwithstanding anything contained in this Agreement to the
          contrary (other than Section 9.03(a)(ii) hereof), on and after
          the Control Transfer Date, YPF will not permit any member of the
          Midgard Group or the Maxus Indonesia Group to enter into any of
          the following transactions with any Relevant Subsidiary that is
          not a member of such Group (a "Non-Member Subsidiary"):
                                         ---------------------




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                    (a)  any merger or consolidation with any Non-Member
               Subsidiary;

                    (b)  any disposition of any Property to, or any
               acquisition of Property from, any Non-Member Subsidiary
               except in the ordinary course of business, provided that the
               monetary or business consideration arising therefrom is
               substantially as favorable to such member as the monetary or
               business consideration that would obtain in a comparable
               transaction with a Person other than an Affiliate of such
               member;

                    (c)  create any Lien on any of its Property to secure
               any Indebtedness or other obligation to a Non-Member
               Subsidiary;

                    (d)  incur, create or assume any Indebtedness to any
               Non-Member Subsidiary or purchase, redeem, retire or
               otherwise acquire, or make any voluntary payment or
               prepayment of the principal of or interest on, or any other
               amount owing in respect of, any of its Indebtedness to any
               Non-Member Subsidiary (other than any such payment or
               prepayment made with the proceeds of loans made under the
               Refinancing Facilities to provide funds to Maxus to pay or
               prepay the Loans);

                    (e)  make any advance to or other Investments in any
               Non-Member Subsidiary; and

                    (f)  make any Dividend Payments to any Non-Member
               Subsidiary;

          other than, in the case of clauses (d), (e) and (f) above, in the
          ordinary course of business, in a manner consistent with prudent
          business practices.

                    Notwithstanding the foregoing, on and after the Control
          Transfer Date, YPF may and shall cause the Maxus Indonesia Group
          and the Midgard Group to engage in such transactions with Non-
          Member Subsidiaries as are reasonably required in order for each
          of Midgard, Java and Sumatra to be able to deliver the
          Refinancing Balance Sheets at the time required pursuant to
          Section 9.01(g) hereof; provided that each of Midgard, Java and
                                  --------
          Sumatra shall at all times operate their respective businesses in
          a manner consistent with prudent business practices.

                    9.14  Payments of Maxus Indebtedness.  On and after the
                          ------------------------------
          Control Transfer Date, YPF will not permit Maxus or any of its
          Material Subsidiaries to purchase, redeem, retire or otherwise
          acquire for value, or set apart any money for a sinking,
          defeasance or other analogous fund for the purchase, redemption,


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<PAGE>
                                        - 65 -

          retirement or other acquisition of, or make any voluntary payment
          or prepayment of the principal of or interest on, or any other
          amount owing in respect of, any Indebtedness of Maxus or any
          Subsidiary of Maxus (other than Indebtedness hereunder and
          (subject to Section 9.13 hereof) Indebtedness owed by any such
          Subsidiary to Maxus), except for regularly scheduled payments or
          prepayments of principal and interest and other amounts in
          respect thereof required pursuant to the instruments evidencing
          such Indebtedness.

                    9.15  Lines of Business.  On and after the Control
                          -----------------
          Transfer Date, YPF will not permit Maxus or any of the Material
          Subsidiaries to engage to any substantial extent in any line or
          lines of business activity other than the acquisition,
          exploration, development, production, processing, marketing,
          gathering and sale of hydrocarbons to the extent Maxus and its
          Subsidiaries are engaged in such activities on the date hereof.

                    9.16  Transactions with YPF Affiliates.  Except as
                          --------------------------------
          contemplated by the Transaction Documents, YPF will not permit
          any of Maxus and its Subsidiaries to, directly or indirectly: 
          (a) make any Investment in a YPF Affiliate; (b) transfer, sell,
          lease, assign or otherwise dispose of any Property to a
          YPF Affiliate; (c) merge into or consolidate with or purchase or
          acquire Property from a YPF Affiliate; or (d) enter into any
          other transaction directly or indirectly with or for the benefit
          of a YPF Affiliate; provided that (x) any YPF Affiliate who is an
                              --------
          individual may serve as a director, officer or employee of any of
          Maxus and its Subsidiaries and receive reasonable compensation
          for his or her services in such capacity and (y) any of Maxus and
          its Subsidiaries may enter into transactions (other than
          Investments by any of Maxus and its Subsidiaries in a
          YPF Affiliate) if the monetary or business consideration arising
          therefrom would be substantially as advantageous to such Person
          as the monetary or business consideration that would obtain in a
          comparable transaction with a Person not a YPF Affiliate.

                    9.17  Use of Proceeds.  YPF Acquisition will use the
                          ---------------
          proceeds of the Loans hereunder solely to consummate the
          Acquisition and to pay Transaction Costs (in compliance with all
          applicable legal and regulatory requirements, including, without
          limitation, Regulations U and X and the Securities Act of 1933,
          as amended and the Securities Act of 1934, as amended, and the
          regulations thereunder).

                    9.18  Modifications of Certain Documents.
                          ----------------------------------

                    (a)  Neither Obligor will agree or consent to any
          modification, supplement or waiver of any of the provisions of
          any of the Maxus Public Debt Documents (other than (x) any
          thereof that is not adverse to the interests of YPF, Maxus or the


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<PAGE>
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          Lenders and (y) any amendment thereof to facilitate the Guarantee
          by YPF of the Indebtedness of Maxus thereunder so long as such
          amendment is to exclude YPF from the definition of "obligor"
          thereunder) or the Acquisition Documents or, following the
          Initial Borrowing Date, terminate the Merger Agreement without
          the prior consent of the Majority Lenders.  YPF will furnish or
          cause to be furnished to the Agent a copy of each such
          modification, supplement or waiver promptly after the execution
          and delivery thereof.

                    (b)  Except as set forth on Schedule VIII hereto, YPF
          will not take any action to modify or supplement the Certificate
          of Incorporation of Maxus after the Merger Closing Date (other
          than modifications that do not materially and adversely affect
          the interests of Maxus or adversely affect the interest of the
          Lenders), without the prior consent of the Majority Lenders;
          provided that, after the Control Transfer Date, YPF will not take
          --------
          any action to modify or supplement any provision of the
          Certificate of Incorporation of Maxus relating to the Maxus
          Preferred Shares other than the amendments and waivers
          contemplated in Section 2C of the letter agreement dated
          February 28, 1995 between Maxus and The Prudential Insurance
          Company of America as in effect on the date hereof.

                    9.19  Consummation of the Merger.  The Obligors will
                          --------------------------
          cause the Merger to be consummated, and the Control Transfer Date
          to occur, as promptly as practicable after the Tender Offer
          Closing Date, but not later than June 12, 1995.

                    9.20  Ownership of YPF Acquisition and Maxus.  YPF
                          --------------------------------------
          will:  (a) at all times prior to the consummation of the Merger
          cause (i) YPF Acquisition to be a Wholly Owned Subsidiary of YPF
          and (ii) any Maxus Shares owned by any of YPF and its
          Subsidiaries to be owned only by YPF Acquisition; and (b) at all
          times following the consummation of the Merger, own all Maxus
          Shares except for Excluded Maxus Shares.  YPF will not own, and
          will not permit any of its Subsidiaries to own, at any time, any
          shares of capital stock of Maxus other than Maxus Shares.

                    9.21  Other Covenants of YPF.  YPF will comply with the
                          ----------------------
          covenants set forth in Schedule II hereto.

                    Section 10.  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 default in the payment when due
          (whether at stated maturity or upon optional or mandatory
          repayment or prepayment or otherwise) of any principal of or
          interest on any Loan, any fee or any other amount payable by it
          hereunder or under any other Basic Document, provided that any


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<PAGE>
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          such default in the payment of such interest, fees or other
          amounts (other than principal of Loans) shall have continued
          unremedied for more than two Business Days; or

                    (b)  Any of YPF Acquisition or Maxus or any Material
          Subsidiary shall default in the payment when due of any principal
          of or interest on any of its other Indebtedness (or amounts
          payable under any Interest Rate Protection Agreements or
          Commodity Hedging Agreements) aggregating $5,000,000 or more; or
          any event specified in any note, agreement, indenture or other
          document evidencing or relating to any such Indebtedness shall
          occur if the effect of such event is to cause, or (with the
          giving of any notice or the lapse of time or both) to permit the
          holder or holders of such Indebtedness (or a trustee or agent on
          behalf of such holder or holders) to cause, such Indebtedness to
          become due, or to be prepaid in full (whether by redemption,
          purchase, offer to purchase or otherwise), prior to its stated
          maturity or to have the interest rate thereon reset to a level so
          that securities evidencing such Indebtedness trade at a level
          specified in relation to the par value thereof or, in the case of
          an Interest Rate Protection Agreement or Commodity Hedging
          Agreement, to permit payments owing under such Interest Rate
          Protection Agreement or Commodity Hedging Agreement, as the case
          may be, to be liquidated; or

                    (c)  Any representation, warranty or certification made
          or deemed made herein or in any other Transaction Document (or in
          any modification or supplement hereto or thereto) by or on behalf
          of YPF Acquisition or Maxus or any of the Refinancing
          Subsidiaries and their respective Subsidiaries or YPF, or any
          certificate furnished to any Lender or the Agent pursuant to the
          provisions hereof or thereof, shall prove to have been false or
          misleading as of the time made or furnished in any material
          respect; or

                    (d)  Either Obligor shall default in the performance of
          any of its obligations under any of Sections 9.01(f), 9.05
          through and including 9.21 hereof; or either Obligor shall
          default in the performance of any of its other obligations in
          this Agreement or any other Basic Document and such default shall
          continue unremedied for a period of 30 or more days after notice
          thereof to the Company by the Agent or any Lender (through the
          Agent); or

                    (e)  Any of YPF Acquisition, Maxus or any Material
          Subsidiary (collectively, the "Relevant Parties") shall admit in
                                         ----------------
          writing its inability to, or be generally unable to, pay its
          debts as such debts become due; or

                    (f)  Any Relevant Party shall (i) apply for or consent
          to the appointment of, or the taking of possession by, a


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<PAGE>
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          receiver, custodian, trustee, examiner or liquidator of itself or
          of all or a substantial part of its Property, (ii) make a general
          assignment for the benefit of its creditors, (iii) file a
          petition seeking to take advantage of any other law relating to
          bankruptcy, insolvency, reorganization, liquidation, dissolution,
          arrangement or winding-up, or composition or readjustment of
          debts, (iv) take any corporate action for the purpose of
          effecting any of the foregoing or (v) do the equivalent of any of
          the foregoing under any foreign laws; or

                    (g)  A proceeding or case shall be commenced, without
          the application or consent of the Relevant Party who is the
          subject thereof, in any court of competent jurisdiction, seeking
          (i) the reorganization, liquidation, dissolution, arrangement or
          winding-up of such Relevant Party, or the composition or
          readjustment of its debts, (ii) the appointment of a receiver,
          custodian, trustee, examiner, liquidator or the like of such
          Relevant Party or of all or any substantial part of its Property,
          (iii) similar relief in respect of such Relevant Party under any
          law relating to bankruptcy, insolvency, reorganization,
          winding-up, or composition or adjustment of debts, and such
          proceeding or case shall continue undismissed, or an order,
          judgment or decree approving or ordering any of the foregoing
          shall be entered and continue unstayed and in effect, for a
          period of 60 or more days or (iv) the equivalent of any of the
          foregoing under any foreign laws; or

                    (h)  A final judgment or order for the payment of money
          shall be entered against any Relevant Party (A) which, within
          30 days after the entry thereof, has not been discharged or
          execution thereof has not been stayed pending appeal or (B) as to
          which any enforcement proceeding shall have been commenced (and
          not stayed) by any creditor thereon and (ii) the aggregate amount
          of all such final judgments or orders meeting the criteria set
          forth in A or B of clause (i) exceeds $10,000,000 (net of
          insurance coverage as to which the insurer has acknowledged
          coverage); or

                    (i)  At any time, on and after the Control Transfer
          Date, an event or condition specified in Section 9.01(d) hereof
          shall occur or exist with respect to any Plan or Multiemployer
          Plan and, as a result of such event or condition, together with
          all other such events or conditions, the Company or any ERISA
          Affiliate shall incur or in the reasonable opinion of the
          Majority Lenders is reasonably likely to incur a liability to a
          Plan, a Multiemployer Plan or the PBGC (or any combination of the
          foregoing) that, in the determination of the Majority Lenders,
          has or could reasonably be expected to have (either individually
          or in the aggregate) a Maxus Material Adverse Effect; or




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<PAGE>
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                    (j)  Any of the Liens created by the Pledge Agreement
          (on and after the execution and delivery thereof) shall at any
          time not constitute a valid and perfected Lien on the collateral
          intended to be covered thereby (to the extent perfection by
          filing, registration, recordation or possession is required
          herein or therein) in favor of the Agent, free and clear of all
          other Liens except as a result of any action taken by the Agent
          or the Lenders, or the Pledge Agreement shall for any reason
          (other than any such action or the termination of the Pledge
          Agreement in accordance with its terms) be terminated or cease to
          be in full force and effect, or the enforceability thereof shall
          be contested by either Obligor; or

                    (k)  any event set forth in Schedule III hereto shall
          occur;

          THEREUPON:  (1) in the case of an Event of Default other than one
          referred to in clause (f) or (g) of this Section 10 hereto with
          respect to the Company, the Agent may and, upon request of the
          Majority Lenders, will, by notice to the Company, terminate the
          Commitments and/or declare the principal amount then outstanding
          of, and the accrued interest on, the Loans and all other amounts
          payable by the Obligors hereunder and under the Notes (including,
          without limitation, any amounts payable under Section 5.05
          hereof) to be forthwith due and payable, whereupon such amounts
          shall be immediately due and payable without presentment, demand,
          protest or other formalities of any kind, all of which are hereby
          expressly waived by each Obligor; and (2) in the case of the
          occurrence of an Event of Default referred to in clause (f)
          or (g) of this Section 10 hereto with respect to the Company, the
          Commitments shall automatically be terminated and the principal
          amount then outstanding of, and the accrued interest on, the
          Loans and all other amounts payable by the Obligors hereunder and
          under the Notes (including, without limitation, any amounts
          payable under Section 5.05 hereof) shall automatically become
          immediately due and payable without presentment, demand, protest
          or other formalities of any kind, all of which are hereby
          expressly waived by each Obligor.

                    Section 11.  The Agent.
                                 ---------

                    11.01  Appointment, Powers and Immunities.  Each Lender
                           ----------------------------------
          hereby appoints and authorizes the Agent to act as its agent
          hereunder and under the other Basic Documents with such powers as
          are specifically delegated to the Agent by the terms of this
          Agreement and of the other Basic Documents, together with such
          other powers as are reasonably incidental thereto.  The Agent
          (which term as used in this sentence and in Section 11.05 and the
          first sentence of Section 11.06 hereof shall include reference to
          its affiliates and its own and its affiliates' officers,
          directors, employees and agents):


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<PAGE>
                                        - 70 -

                    (a)  shall have no duties or responsibilities except
               those expressly set forth in this Agreement and in the other
               Basic Documents, and shall not by reason of this Agreement
               or any other Basic Document be a trustee for any Lender;

                    (b)  shall not be responsible to the Lenders for any
               recitals, statements, representations or warranties
               contained in this Agreement or in any other Basic Document,
               or in any certificate or other document referred to or
               provided for in, or received by any of them under, this
               Agreement or any other Basic Document, or for the value,
               validity, effectiveness, genuineness, enforceability or
               sufficiency of this Agreement, any Note or any other Basic
               Document or any other document referred to or provided for
               herein or therein or for any failure by the Company or any
               other Person to perform any of its obligations hereunder or
               thereunder;

                    (c)  shall not, except to the extent expressly
               instructed by the Majority Lenders with respect to
               collateral security under the Pledge Agreement, be required
               to initiate or conduct any litigation or collection
               proceedings hereunder or under any other Basic Document; and

                    (d)  shall not be responsible for any action taken or
               omitted to be taken by it hereunder or under any other Basic
               Document or under any other document or instrument referred
               to or provided for herein or therein or in connection
               herewith or therewith, 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 in good faith.  The
          Agent may deem and treat the payee of a Note as the holder
          thereof for all purposes hereof unless and until a notice of the
          assignment or transfer thereof shall have been filed with the
          Agent, together with the consent of the Company to such
          assignment or transfer (to the extent provided in
          Section 12.06(b) hereof).

                    11.02  Reliance by Agent.  The Agent shall be entitled
                           -----------------
          to rely upon any certification, notice or other communication
          (including, without limitation, any thereof by telephone,
          telecopy, 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, independent accountants and other experts selected by
          the Agent.  As to any matters not expressly provided for by this
          Agreement or any other Basic Document, the Agent shall in all
          cases be fully protected in acting, or in refraining from acting,


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<PAGE>
                                        - 71 -

          hereunder or thereunder in accordance with instructions given by
          the Majority Lenders, and such instructions of the Majority
          Lenders and any action taken or failure to act pursuant thereto
          shall be binding on all of the Lenders.

                    11.03  Defaults.  The Agent shall not be deemed to have
                           --------
          knowledge or notice of the occurrence of a Default unless the
          Agent has received notice from a Lender or either of the Obligors
          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 Lenders.  The Agent shall (subject to
          Section 11.07 hereof) take such action with respect to such
          Default as shall be directed by the Majority Lenders, 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, with respect to
          such Default as it shall deem advisable in the best interest of
          the Lenders except to the extent that this Agreement expressly
          requires that such action be taken, or not be taken, only with
          the consent or upon the authorization of the Majority Lenders or
          all of the Lenders.

                    11.04  Rights as a Lender.  With respect to its
                           ------------------
          Commitment and the Loans made by it, Chase (and any successor
          acting as Agent) in its capacity as a Lender hereunder shall have
          the same rights and powers hereunder as any other Lender and may
          exercise the same as though it were not acting as the Agent, and
          the term "Lender" or "Lenders" shall, unless the context
          otherwise indicates, include the Agent in its individual
          capacity.  Chase (and any successor acting as Agent) and its
          affiliates may (without having to account therefor to any Lender)
          accept deposits from, lend money to, make investments in and
          generally engage in any kind of banking, trust or other business
          with any of YPF and Maxus and their respective Subsidiaries or
          Affiliates) as if it were not acting as the Agent, and Chase (and
          any such successor) and its affiliates may accept fees and other
          consideration from any of such Persons for services in connection
          with this Agreement or otherwise without having to account for
          the same to the Lenders.

                    11.05  Indemnification.  The Lenders agree to indemnify
                           ---------------
          the Agent (to the extent not reimbursed under Section 12.03
          hereof, but without limiting the obligations of the Company under
          said Section 12.03) ratably in accordance with the aggregate
          principal amount of the Loans held by the Lenders (or, if no
          Loans are at the time outstanding, 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 that may be imposed on, incurred by or asserted


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<PAGE>
                                        - 72 -

          against the Agent (including by any Lender) arising out of or by
          reason of any investigation in or in any way relating to or
          arising out of this Agreement or any other Basic Document or any
          other documents contemplated by or referred to herein or therein
          or the transactions contemplated hereby or thereby (including,
          without limitation, the costs and expenses that the Company is
          obligated to pay under Section 12.03 hereof, 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, provided
                                                                  --------
          that no Lender 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.

                    11.06  Non-Reliance on Agent and Other Lenders.  Each
                           ---------------------------------------
          Lender agrees that it has, independently and without reliance on
          the Agent or any other Lender, and based on such documents and
          information as it has deemed appropriate, made its own credit
          analysis of YPF and Maxus and their respective Subsidiaries and
          decision to enter into this Agreement and that it will,
          independently and without reliance upon the Agent or any other
          Lender, 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 this Agreement
          or under any other Basic Document.  The Agent shall not be
          required to keep itself informed as to the performance or
          observance by either Obligor of this Agreement or any of the
          other Basic Documents or any other document referred to or
          provided for herein or therein or to inspect the Properties or
          books of any of YPF and Maxus and their respective Subsidiaries. 
          Except for notices, reports and other documents and information
          expressly required to be furnished to the Lenders by the Agent
          hereunder or under the Pledge Agreement, the Agent shall not have
          any duty or responsibility to provide any Lender with any credit
          or other information concerning the affairs, financial condition
          or business of any of YPF and Maxus and their respective
          Subsidiaries (or any of their affiliates) that may come into the
          possession of the Agent or any of its affiliates.

                    11.07  Failure to Act.  Except for action expressly
                           --------------
          required of the Agent hereunder and under the other Basic
          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 from the
          Lenders of their indemnification obligations under Section 11.05
          hereof against any and all liability and expense that may be
          incurred by it by reason of taking or continuing to take any such
          action.




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<PAGE>
                                        - 73 -

                    11.08  Resignation or Removal of 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 Lenders and the Company, and the Agent may be removed at
          any time with or without cause by the Majority Lenders.  Upon any
          such resignation or removal, the Majority Lenders shall have the
          right to appoint a successor Agent.  If no successor Agent shall
          have been so appointed by the Majority Lenders and shall have
          accepted such appointment within 30 days after the retiring
          Agent's giving of notice of resignation or the Majority Lenders'
          removal of the retiring Agent, then the retiring Agent may, on
          behalf of the Lenders, appoint a successor Agent, that shall be a
          bank that has an office in New York, New York with a combined
          capital and surplus of at least $500,000,000.  Upon the
          acceptance of any appointment as Agent hereunder by a successor
          Agent, such successor Agent shall thereupon succeed to and become
          vested with all the rights, powers, privileges and duties of the
          retiring Agent, and the retiring Agent shall be discharged from
          its duties and obligations hereunder.  After any retiring Agent's
          resignation or removal hereunder as Agent, the provisions of this
          Section 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.

                    11.09  Consents under Other Basic Documents.  Except as
                           ------------------------------------
          otherwise provided in Section 12.04 hereof with respect to this
          Agreement, the Agent may, with the prior consent of the Majority
          Lenders (but not otherwise), consent to any modification,
          supplement or waiver under any of the Basic Documents, provided
                                                                 --------
          that, without the prior consent of each Lender, the Agent shall
          not (except as provided herein or in the Pledge Agreement)
          release any collateral or otherwise terminate any Lien under any
          Basic Document providing for collateral security, or agree to
          additional obligations being secured by such collateral security
          (unless the Lien for such additional obligations shall be junior
          to the Lien in favor of the other obligations secured by such
          Basic Document), except that no such consent shall be required,
          and the Agent is hereby authorized, to release any Lien covering
          Property that is the subject of a disposition of Property
          permitted hereunder or to which the Majority Lenders have
          consented. 

                    Section 12.  Miscellaneous.
                                 -------------

                    12.01  Waiver.  No failure on the part of the Agent or
                           ------
          any Lender to exercise and no delay in exercising, and no course
          of dealing with respect to, any right, power or privilege under
          this Agreement or any Note shall operate as a waiver thereof, nor
          shall any single or partial exercise of any right, power or
          privilege under this Agreement or any Note preclude any other or
          further exercise thereof or the exercise of any other right,


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<PAGE>
                                        - 74 -

          power or privilege.  The remedies provided herein are cumulative
          and not exclusive of any remedies provided by law.

                    12.02  Notices.  All notices, requests and other
                           -------
          communications provided for herein and under the Pledge Agreement
          (including, without limitation, any modifications of, or waivers,
          requests or consents under, this Agreement) shall be given or
          made in writing (including, without limitation, by telecopy)
          delivered to the intended recipient at the "Address for Notices"
          specified below its name on the signature pages hereof (below the
          name of the Company, in the case of YPF); or, as to any party, at
          such other address as shall be designated by such party in a
          notice to each other party.  Except as otherwise provided in this
          Agreement, all such communications shall be deemed to have been
          duly given when transmitted by telecopier or personally delivered
          or, in the case of a mailed notice, upon receipt, in each case
          given or addressed as aforesaid.

                    12.03  Expenses, Etc.  The Company agrees to pay or
                           --------------
          reimburse each of the Lenders and the Agent (without duplication)
          for: (a) all reasonable out-of-pocket costs and expenses of the
          Agent (including, without limitation, the reasonable fees and
          expenses of Milbank, Tweed, Hadley & McCloy, special New York
          counsel to Chase, and Perez Alati, Grondona, Benites, Arntsen &
          Martinez de Hoz (h), special Argentine counsel to Chase) in
          connection with (i) the negotiation, preparation, execution,
          delivery of this Agreement and the other Basic Documents, the
          review of the other Transaction Documents and the making and
          syndication of the Loans hereunder and related matters (provided
                                                                  --------
          that such fees and expenses of Milbank do not exceed the budgeted
          amounts indicated by Milbank, without the prior approval of YPF)
          and (ii) the negotiation or preparation of any modification,
          supplement or waiver of any of the terms of this Agreement or any
          of the other Transaction Documents (whether or not consummated);
          (b) all reasonable out-of-pocket costs and expenses of the
          Lenders and the Agent (including, without limitation, the
          reasonable fees and expenses of legal counsel) in connection with
          (i) any Event of Default and any enforcement or collection
          proceedings resulting therefrom, including, without limitation,
          all manner of participation in or other involvement with
          (x) bankruptcy, insolvency, receivership, foreclosure, winding up
          or liquidation proceedings, (y) judicial or regulatory
          proceedings and (z) workout, restructuring or other negotiations
          or proceedings (whether or not the workout, restructuring or
          transaction contemplated thereby is consummated) and (ii) the
          enforcement of this Section 12.03; and (c) without limiting the
          obligations of YPF under Section 6.08 hereof, and without
          duplication of any amounts payable by the Company under
          Section 5.06 hereof, all transfer, stamp, documentary or other
          similar taxes, assessments or charges levied by any governmental
          or revenue authority in respect of this Agreement or any of the


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          other Basic Documents or any other document referred to herein or
          therein and all costs, expenses, taxes, assessments and other
          charges incurred in connection with any filing, registration,
          recording or perfection of any security interest contemplated by
          any Basic Document or any other document referred to therein;
          provided that, if and only if YPF shall have indefeasibly paid in
          full to the Agent and the Lenders any amounts payable by it under
          Section 6.08 hereof and by the Company under this clause (c), the
          Company shall not be obligated to pay such amounts under this
          clause (c) to the Agent and the Lenders.

                    The Company hereby agrees to indemnify the Agent and
          each Lender and their respective directors, officers, employees,
          attorneys and agents from, and hold each of them harmless
          against, any and all losses, liabilities, claims, damages or
          expenses incurred by any of them (including, without limitation,
          any and all losses, liabilities, claims, damages or expenses
          incurred by the Agent to any Lender, whether or not the Agent or
          any Lender is a party thereto) arising out of or by reason of any
          investigation or litigation or other proceedings (including any
          threatened investigation or litigation or other proceedings)
          relating to the Loans hereunder or any actual or proposed use by
          the Company or any of its Subsidiaries of the proceeds of any of
          the Loans hereunder or any of the other transactions contemplated
          hereby or by any of the other Transactions Documents, including,
          without limitation, the reasonable fees and disbursements of
          counsel incurred in connection with any such investigation or
          litigation or other proceedings (but excluding any such losses,
          liabilities, claims, damages or expenses incurred by reason of
          the gross negligence or willful misconduct of the Person to be
          indemnified).

                    12.04  Amendments, Etc.  Except as otherwise expressly
                           ----------------
          provided in this Agreement, any provision of this Agreement may
          be modified or supplemented only by an instrument in writing
          signed by the Company, YPF, the Agent and the Majority Lenders,
          or by the Company, YPF and the Agent acting with the consent of
          the Majority Lenders, and any provision of this Agreement may be
          waived by the Majority Lenders or by the Agent acting with the
          consent of the Majority Lenders; provided that:  (a) no
                                           --------
          modification, supplement or waiver shall, unless by an instrument
          signed by all of the Lenders or by the Agent acting with the
          consent of all of the Lenders:  (i) increase, or extend the term
          of the Commitments, or extend the time or waive any requirement
          for the reduction or termination of the Commitments, (ii) extend
          the date fixed for the payment of principal of or interest on any
          Loan or any fee hereunder, (iii) reduce the amount of any such
          payment of principal, (iv) reduce the rate at which interest or
          any fee is payable hereunder, (v) alter the rights or obligations
          of the Company to prepay Loans, (vi) alter the terms of this
          Section 12.04, (vii) modify the definition of the term "Majority


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<PAGE>
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          Lenders" or modify in any other manner the number or percentage
          of the Lenders required to make any determinations or waive any
          rights hereunder or to modify any provision hereof, or
          (viii) waive any of the conditions precedent set forth in
          Section 7 hereof; and (b) any modification or supplement of
          Section 11 hereof shall require the consent of the Agent.  

                    12.05  Successors and Assigns.  This Agreement shall be
                           ----------------------
          binding upon and inure to the benefit of the parties hereto and
          their respective successors and permitted assigns.

                    12.06  Assignments and Participations.
                           ------------------------------

                    (a)  Neither Obligor may assign any of its rights or
          obligations hereunder or under the Notes without the prior
          consent of all of the Lenders and the Agent.

                    (b)  Each Lender may (and each Lender shall, if
          required pursuant to Section 5.07 hereof) assign any of its
          Loans, its Note, and its Commitment with the consent of each of
          the Company and the Agent (provided that no such consent of the
                                     --------
          Company shall be required if an Event of Default shall have
          occurred and be continuing and no such consent of either the
          Company or the Agent shall be unreasonably withheld or delayed);
          provided that
          --------

                    (i)  no such consent by the Company or the Agent shall
               be required in the case of any assignment to another Lender;

                    (ii)  except to the extent the Company and the Agent
               shall otherwise consent, any such partial assignment (other
               than to another Lender) shall be in an amount at least equal
               to $5,000,000;

                    (iii)  each such assignment by a Lender of its Loans,
               Note or Commitment shall be made in such manner so that the
               same portion of its Loans, Note and Commitment is assigned
               to the respective assignee; and

                    (iv)  upon each such assignment, the assignor and
               assignee shall deliver to the Company and the Agent a Notice
               of Assignment in the form of Exhibit G hereto.  

          Upon execution and delivery by the assignor and the assignee to
          the Company and the Agent of such Notice of Assignment, and upon
          consent thereto by the Company and the Agent to the extent
          required above, the assignee shall have, to the extent of such
          assignment (unless otherwise consented to by the Company and the
          Agent), the obligations, rights and benefits of a Lender
          hereunder holding the Commitment and Loans (or portions thereof)
          assigned to it and specified in such Notice of Assignment (in


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<PAGE>
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          addition to the Commitment and Loans, if any, theretofore held by
          such assignee) and the assigning Lender shall, to the extent of
          such assignment, be released from the Commitment (or portion
          thereof) so assigned.  Upon each such assignment the assigning
          Lender shall pay the Agent an assignment fee of $3,000.

                    (c)  A Lender may sell or agree to sell to one or more
          other Persons a participation in all or any part of any Loans
          held by it, or in its Commitment, in which event each purchaser
          of a participation (a "Participant") shall be entitled to the
                                 -----------
          rights and benefits of the provisions of Section 9.01(h) hereof
          with respect to its participation in such Loans and Commitment as
          if (and the Company shall be directly obligated to such
          Participant under such provisions as if) such Participant were a
          "Lender" for purposes of said Section, but, except as otherwise
          provided in Section 4.07(c) hereof, shall not have any other
          rights or benefits under this Agreement or any Note or any other
          Basic Document (the Participant's rights against such Lender in
          respect of such participation to be those set forth in the
          agreements executed by such Lender in favor of the Participant). 
          All amounts payable by the Company to any Lender under Section 5
          hereof and Section 12.03 hereof in respect of Loans held by it,
          and its Commitment, shall be determined as if such Lender had not
          sold or agreed to sell any participations in such Loans and
          Commitment, and as if such Lender were funding such Loans and
          Commitment in the same way that it is funding the portion of such
          Loans and Commitment in which no participations have been sold. 
          In no event shall a Lender that sells a participation agree with
          the Participant to take or refrain from taking any action
          hereunder or under any other Basic Document except that such
          Lender may agree with the Participant that it will not, without
          the consent of the Participant, agree to (i) increase or extend
          the term, or extend the time or waive any requirement for the
          reduction or termination, of such Lender's Commitment,
          (ii) extend the date fixed for the payment of principal of or
          interest on the related Loan or Loans or any portion of any fee
          hereunder payable to the Participant, (iii) reduce the amount of
          any such payment of principal, (iv) reduce the rate at which
          interest is payable thereon, or any fee hereunder payable to the
          Participant, to a level below the rate at which the Participant
          is entitled to receive such interest or fee, (v) alter the rights
          or obligations of the Company to prepay the related Loans or
          (vi) consent to any modification, supplement or waiver hereof or
          of any of the other Basic Documents to the extent that the same,
          under Section 11.09 or 12.04 hereof, requires the consent of each
          Lender.

                    (d)  In addition to the assignments and participations
          permitted under the foregoing provisions of this Section 12.06,
          any Lender may (without notice to or the consent of the Company,
          the Agent or any other Lender and without payment of any fee)


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          (i) assign and pledge all or any portion of its Loans and its
          Note to any Federal Reserve Bank as collateral security pursuant
          to Regulation A and any Operating Circular issued by such Federal
          Reserve Bank and (ii) assign all or any portion of its rights
          under this Agreement and its Loans and its Note to an affiliate. 
          No such assignment shall release the assigning Lender from its
          obligations hereunder.

                    (e)  A Lender may furnish any information concerning
          YPF or Maxus or any of their respective Subsidiaries in the
          possession of such Lender from time to time to assignees and
          participants (including prospective assignees and participants),
          subject, however, to the provisions of Section 12.16 hereof.

                    (f)  Anything in this Section 12.06 to the contrary
          notwithstanding, no Lender may assign or participate any interest
          in any Loan held by it hereunder to the Company or any of its
          Affiliates or Subsidiaries without the prior consent of each
          Lender.

                    12.07  Survival.  The obligations of the Company under
                           --------
          Sections 5.01, 5.05, 5.06 and 12.03 hereof, the obligations of
          YPF under Sections 6.03 and 6.08 hereof, and the obligations of
          the Lenders under Section 11.05 hereof, shall survive the
          repayment of the Loans and the termination of the Commitments
          and, in the case of any Lender that assigns any interest in its
          Commitment or Loans hereunder, shall survive the making of such
          assignment notwithstanding that such assigning Lender may cease
          to be a "Lender" hereunder.  In addition, each representation and
          warranty made, or deemed to be made by a notice of any Loan,
          herein or pursuant hereto shall survive the making of such
          representation and warranty, and no Lender shall be deemed to
          have waived, by reason of making any Loan, any Default that may
          arise by reason of any such representation or warranty proving to
          have been false or misleading in any material respect,
          notwithstanding that such Lender or the Agent may have had notice
          or knowledge or reason to believe that such representation or
          warranty was false or misleading at the time such Loan was made.

                    12.08  Captions.  The table of contents and 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.

                    12.09  Counterparts.  This Agreement may be executed in
                           ------------
          any number of counterparts, all of which taken together shall
          constitute one and the same instrument and any of the parties
          hereto may execute this Agreement by signing any such
          counterpart.




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<PAGE>
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                    12.10  Jurisdiction, Venue, Immunity and Service of
                           --------------------------------------------
          Process.
          -------

                    (a)  YPF hereby consents to the non-exclusive
          jurisdiction of any court of the State of New York or any United
          States federal court sitting in the Borough of Manhattan, New
          York City, New York, United States, and any appellate court from
          any thereof, and waives any immunity from the jurisdiction of
          such courts over any suit, action or proceeding that may be
          brought in connection with any of this Agreement and the other
          Basic Documents and the transactions contemplated hereby or
          thereby.  Each Obligor irrevocably waives, to the fullest extent
          permitted by law, any objection to any suit, action or proceeding
          that may be brought in connection with this Agreement and the
          other Basic Documents and the transactions contemplated hereby or
          thereby in such courts whether on grounds of venue, residence or
          domicile or on the ground that any such suit, action or
          proceeding has been brought in an inconvenient forum.  YPF agrees
          that final judgment in any such suit, action or proceeding
          brought in such court shall be conclusive and binding upon YPF
          and may be enforced in any court to the jurisdiction of which YPF
          is subject by a suit upon such judgment, provided that service of
                                                   --------
          process is effected upon YPF in the manner provided in this
          Section 12.10.  Notwithstanding the foregoing, any suit, action
          or proceeding brought in connection with any of this Agreement
          and the other Basic Documents and the transactions contemplated
          hereby or thereby may be instituted in any competent court in
          Argentina.

                    (b)  To the extent that any Obligor has or hereafter
          may acquire any immunity from jurisdiction of any court or from
          any legal process, such Obligor hereby waives such immunity and
          agrees not to assert, by way of motion, as a defense or
          otherwise, in any suit, action or proceeding the defense of
          sovereign immunity or any claim that it is not personally subject
          to the jurisdiction of the above-named courts by reason of
          sovereign immunity or otherwise, or that it is immune from any
          legal process (whether through service of notice, attachment
          prior to judgment, attachment in aid of execution, execution or
          otherwise) with respect to itself or its property or from
          attachment either prior to judgment or in aid of execution by
          reason of sovereign immunity.

                    (c)  YPF hereby agrees that service of all writs,
          process and summonses in any such suit, action or proceeding
          brought in the State of New York may be made upon it by service
          upon CT Corporation System (the "Process Agent"), presently
                                           -------------
          having an office at 1633 Broadway, New York, New York 10019,
          U.S.A., and YPF hereby irrevocably appoints the Process Agent its
          true and lawful agent and attorney-in-fact in its name, place and
          stead to accept such service of any and all such writs, process


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<PAGE>
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          and summonses, and agrees that the failure of the Process Agent
          to give any notice of any such service of process to YPF shall
          not impair or affect the validity of such service or of any
          judgment based thereon.  If for any reason CT Corporation System
          ceases to act, or to be able to act, as a Process Agent as
          contemplated hereby, YPF will appoint a substitute therefor and
          agrees to maintain at all times an agent in the United States of
          America to act as its Process Agent.  YPF hereby further
          irrevocably consents to the service of process in any suit,
          action or proceeding in said courts by the mailing thereof by the
          Agent or the Lender or any holder of any Note by registered or
          certified mail, postage prepaid, to YPF at the address given
          below its name on the signature pages hereto.

                    (d)  Nothing herein shall in any way be deemed to limit
          the ability of the Agent or any Lender to serve any such writs,
          process or summonses in any other manner permitted by applicable
          law or to obtain jurisdiction over the Obligors in such other
          jurisdictions, and in such manner, as may be permitted by
          applicable law.

                    12.11  Governing Law.  This Agreement and the Notes
                           -------------
          shall be governed by, and construed in accordance with, the law
          of the State of New York.  

                    12.12  Waiver of Jury Trial.  EACH OF THE OBLIGORS, THE
                           --------------------
          AGENT AND THE LENDERS HEREBY IRREVOCABLY WAIVES, TO THE FULLEST
          EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY
          JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS
          AGREEMENT, THE NOTES OR THE TRANSACTIONS CONTEMPLATED HEREBY.

                    12.13  Special Waiver.  To the extent that YPF may be
                           --------------
          entitled to the benefit of any provision of law requiring the
          Agent or the Lender in any suit, action or proceeding brought in
          a court of Argentina or other jurisdiction arising out of or in
          connection with any of this Agreement and the other Basic
          Documents and the transactions contemplated hereby, to post
          security for litigation costs or otherwise post a performance
          bond or guaranty ("cautio judicatum solvi" or "excepcion de
                             ----------------------      ------------
          arraigo"), or to take any similar action, YPF hereby irrevocably
          -------
          waives such benefit, in each case to the fullest extent now or
          hereafter permitted under the laws of Argentina or, as the case
          may be, such other jurisdiction.

                    12.14  Judgment Currency.  (a)  This is an
                           -----------------
          international loan transaction in which the specification of
          Dollars and payment in New York City is of the essence, and the
          obligations of each Obligor under any of this Agreement and the
          other Basic Documents to make payment to (or for the account of)
          the Agent or a Lender in Dollars shall not be discharged or
          satisfied by any tender or recovery pursuant to any judgment


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<PAGE>
                                        - 81 -

          expressed in or converted into any other currency or in another
          place except to the extent that such tender or recovery results
          in the effective receipt by the Agent or such Lender in New York
          City of the full amount of Dollars payable to the Agent or such
          Lender thereunder.  If for the purpose of obtaining judgment in
          any court it is necessary to convert a sum due under any of this
          Agreement and the other Basic Documents to the Agent, any Lender
          or any indemnified person in Dollars into another currency the
          rate of exchange used shall be that at which in accordance with
          normal banking procedures such party could purchase Dollars with
          such other currency in New York City on the business day in New
          York next preceding the day on which final judgment is rendered. 
          The obligation of each Obligor in respect of any sum payable
          under any of this Agreement and the other Basic Documents by it
          to the Agent, any Lender or any indemnified person shall,
          notwithstanding any judgment in a currency (the "Judgment
                                                           --------
          Currency") other than Dollars, be discharged only to the extent
          --------
          that on the business day in New York next following receipt by
          such payee of any sum adjusted to be so due in the Judgment
          Currency such payee may in accordance with normal banking
          procedures purchase and transfer to New York Dollars with the
          Judgment Currency; if the amount of Dollars which could have been
          so purchased and transferred is less than the sum originally due
          to the Agent, any Lender or any indemnified person, as the case
          may be, in Dollars each Obligor agrees, as a separate obligation
          and notwithstanding any such judgment, to indemnify such payee
          against the deficiency.

                    (b)  (i) Without limiting the obligation of YPF to pay
          Guaranteed Obligations hereunder in Dollars and otherwise in
          accordance with the provisions of this Agreement (but without
          duplication of any amounts paid by YPF in Dollars in respect of
          its Guaranteed Obligations), if foreign exchange restrictions are
          imposed in Argentina and, as a result thereof, YPF is prohibited
          from purchasing or otherwise obtaining Dollars or transferring
          Dollars to the account of the Agent specified in Section 4.01
          hereof, then YPF will, if and to the extent requested to do so by
          the Agent (acting on the instructions of the Majority Lenders
          acting in their sole discretion):  (1) pay to the Agent an amount
          of Argentine pesos sufficient to purchase the Argentine Public
          Debt Instruments (as defined below) identified in (and in the
          respective amounts specified in) such request having a value
          sufficient so that, upon the sale thereof for Dollars in New York
          (or, at the option of the Agent, in such other city as the Agent
          shall determine it is able to obtain a better price), the Agent
          will receive a sum in Dollars (net of any taxes, expenses and
          commissions payable in connection with the purchase and sale of
          such securities) equal to the aggregate Dollar amount owed by YPF
          to the Agent and the Lenders under this Agreement in respect of
          Guaranteed Obligations; or (2) deliver to the Agent Argentine
          Public Debt Instruments identified in (and in the respective


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<PAGE>
                                        - 82 -

          amounts specified in) such request having a value sufficient so
          that upon the sale thereof for Dollars in New York (or, at the
          option of the Agent, in such other city as the Agent shall
          determine it is able to obtain a better price), the Agent will
          receive a sum in Dollars (net of any taxes, expenses and
          commissions payable in connection with the purchase and sale of
          such securities) equal to the aggregate Dollar amount owed by YPF
          to the Agent and the Lenders under this Agreement in respect of
          Guaranteed Obligations.  The receipt by the Agent of Dollar
          proceeds from the sale of securities as provided in the preceding
          sentence shall not be deemed to constitute payment of amounts
          owed by YPF under this Agreement except to the extent credited to
          the account at the Principal Office referred to in Section
          4.01(a) hereof.  The Agent hereby agrees to use its best efforts
          to effect such purchase and/or sale, and to cause the proceeds of
          any such sale (net of any taxes, expenses and commissions that
          are payable in connection with such purchase and/or sale) to be
          credited to such account as promptly as practicable following the
          payment of Argentine pesos or delivery of Argentine Public Debt
          Instruments by YPF pursuant to the preceding sentence of this
          Section 12.14.  As used herein, "Argentine Public Debt
                                           ---------------------
          Instruments" shall mean Argentine External Bonds issued by
          -----------
          Argentina denominated in Dollars and other Argentine public
          foreign debt instruments denominated in Dollars.

                   (ii)  Nothing in this Section 12.14(b) shall impair any
          of the rights of the Agent and the Lenders in respect of the
          Guaranteed Obligations under this Agreement and nothing in this
          Section 12.14(b) shall be construed to entitle YPF to refuse to
          make payments in respect of the Guaranteed Obligations hereunder
          in Dollars in New York City for any reason whatsoever (other than
          full and final payment to the Agent of all amounts due hereunder
          in respect of the Guaranteed Obligations in Dollars in New York
          City), including without limitation if (i) the purchase of
          Dollars in Argentina by any means were to become more onerous or
          burdensome for YPF than as of the date hereof; or (ii) the
          exchange rate in force in Argentina as of the date hereof
          increases significantly; or (iii) the exchange ratio between the
          Argentine peso and the Dollar established by Law 23,928 is
          modified.

                    12.15  Use of English Language.  This Agreement and the
                           -----------------------
          other Basic Documents have been negotiated and executed in the
          English language.  Except as provided in Item 7 of Schedule II
          hereto, all certificates, reports, notices and other documents
          and communications given or delivered pursuant to this Agreement
          (including, without limitation, pursuant to any modifications or
          supplements hereto) shall be in the English language, or
          accompanied by a certified English translation thereof.  Except
          in the case of laws or official communications of Argentina, in
          the case of any document originally issued in a language other


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<PAGE>
                                        - 83 -

          than English, the English language version of any such document
          shall for purposes of this Agreement, and absent manifest error,
          control the meaning of the matters set forth therein.

                    12.16  Treatment of Certain Information;
                           ---------------------------------
          Confidentiality.  Each Lender and the Agent agrees (on behalf of
          ---------------
          itself and each of its affiliates, directors, officers, employees
          and representatives) to use its best efforts to keep confidential
          and not to disclose any non-public information supplied to it by
          YPF or the Company pursuant to this Agreement that is identified
          by such Person as being confidential at the time the same is
          delivered to the Lenders or the Agent, provided that nothing
                                                 --------
          herein shall limit the disclosure of any such information (i) to
          the extent required by statute, rule, regulation or judicial
          process, (ii) to counsel for any of the Lenders or the Agent,
          (iii) to bank examiners, auditors or accountants, (iv) to the
          Agent or any other Lender (or to Chase Securities, Inc., Chase
          Investment Bank, Ltd. and Chase Manhattan Asia Limited), (v) in
          connection with any litigation relating to any of the Transaction
          Documents or the transactions contemplated thereby or hereby to
          which any one or more of the Lenders or the Agent is a party,
          (vi) to a subsidiary or affiliate of such Lender in connection
          with the syndication, administration, management or booking of
          any Loans or (vii) to any assignee or participant (or prospective
          assignee or participant) so long as such assignee or participant
          (or prospective assignee or participant) first executes and
          delivers to the respective Lender a Confidentiality Agreement
          substantially in the form of Exhibit F hereto (or executes and
          delivers to such Lender an acknowledgement to the effect that it
          is bound by the provisions of this Section 12.16, which
          acknowledgement may be included as part of the respective
          assignment or participation agreement pursuant to which such
          assignee or participant acquires an interest in the Loans
          hereunder).  The obligations of each Lender under this
          Section 12.16 shall supersede and replace the obligations of such
          Lender under any confidentiality letter (i) in respect of this
          financing executed and delivered by such Lender to either or both
          of the Obligors prior to the date hereof and (ii) effective as of
          the Merger Closing Date, executed and delivered by such Lender to
          Maxus or any of its Subsidiaries prior to the date hereof; in
          addition, the obligations of any assignee that has executed a
          Confidentiality Agreement in the form of Exhibit F hereto shall
          be superseded by this Section 12.16 upon the date upon which such
          assignee becomes a Lender hereunder pursuant to Section 12.06
          hereof.








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<PAGE>
                                        - 84 -

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


                                        YPF ACQUISITION CORP.


                                        By /s/ Cedric Bridger
                                          Title:  Vice President, Assistant
                                                  Secretary and Treasurer


                                        Address for Notices:

                                        660 Madison Avenue
                                        20th Floor
                                        New York, New York  10021

                                        Attention:  Jose A. Estenssoro

                                        Telecopier No.:  (212) 838-9088

                                        Telephone No.:  (212) 838-9400





























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<PAGE>
                                        - 85 -

                                        YPF SOCIEDAD ANONIMA


                                        By /s/ Cedric Bridger
                                          Title:  Vice President, Finance
                                                  and Corporate Development















































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<PAGE>
                                        - 86 -


                                        LENDERS
                                        -------


          Commitment                    THE CHASE MANHATTAN BANK
          ----------
          $550,000,000.00                 (NATIONAL ASSOCIATION)


                                        By /s/ Ian Schottlaender
                                          Title: Managing Director


                                        Lending Office for all Loans:

                                        The Chase Manhattan Bank
                                          (National Association)
                                        1 Chase Manhattan Plaza
                                        New York, New York  10081

                                        Address for Notices:

                                        The Chase Manhattan Bank
                                          (National Association)
                                        1 Chase Manhattan Plaza
                                        New York, New York  10081

                                        Attention:  Ian Shottlaender
                                                    Managing Director

                                        Telecopier No.:  212-552-1687

                                        Telephone No.:  212-552-5874





















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<PAGE>
                                        - 87 -


                                        THE CHASE MANHATTAN BANK
                                          (NATIONAL ASSOCIATION),
                                          as Agent


                                        By /s/ Ian Schottlaender
                                          Title:  Managing Director

                                        Address for Notices to
                                          Chase as Agent:

                                        The Chase Manhattan Bank
                                          (National Association)
                                        4 Chase Metrotech Center
                                        13th Floor
                                        Brooklyn, New York  11245

                                        Attention:  New York Agency

                                        Telecopier No.:  (718) 242-6910

                                        Telephone No.:  (718) 242-7979






























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                                   Credit Agreement
                                   ----------------











<PAGE>
                                                                 SCHEDULE I
                        Representations and Warranties of YPF
                        -------------------------------------


                    Capitalized terms used in this Schedule I (unless
          otherwise defined in this Schedule I) shall have the meanings
          assigned to them in the Credit Agreement.  In addition, as used
          in this Schedule I, any references to a Subsidiary or
          Subsidiaries of YPF shall be deemed (other than with respect to
          Item 3) to refer to a Subsidiary or Subsidiaries of YPF (as the
          case may be) other than YPF Acquisition and its Subsidiaries and
          Maxus and its Subsidiaries.

                    1.  Organization, Standing, etc.  YPF is a sociedad
                        ----------------------------           --------
          anonima (corporation) duly organized and existing and in good
          -------
          standing under the laws of Argentina, has full corporate power
          and authority to own and operate its properties, to carry on its
          business as now conducted and as proposed to be conducted, to
          enter into the Transaction Documents to which it is a party and
          to carry out the terms thereof.  

                    2.  Qualification.  YPF and each of its Subsidiaries is
                        -------------
          duly qualified and in good standing as a foreign corporation
          authorized to do business in each jurisdiction (other than the
          jurisdiction of its incorporation or organization) in which the
          nature of its activities or the character of the properties it
          owns or leases makes such qualification necessary and in which
          the failure so to qualify would have a Schedule YPF Material
          Adverse Effect.  

                    3.  Financial Statements.  The consolidated balance
                        --------------------
          sheets of YPF and its Subsidiaries as at December 31, 1994, 1993
          and 1992 and the related consolidated statements of income, cash
          flows and changes in financial position of YPF and its
          Subsidiaries for each of the fiscal years then ended, together
          with related notes, such statements being accompanied by reports
          thereon of Pistrelli, Diaz y Associados (associated with Arthur
          Andersen & Co.), independent public accountants have been
          delivered to the Lenders.  The consolidated financial statements
          of YPF and its Subsidiaries referred to above for the year ended
          at December 31, 1994 will be submitted for approval by the
          shareholders of YPF at a meeting to be held on April 28, 1995. 
          The Board of Directors of YPF has recommended approval of these
          financial statements. All such financial statements (including
          any related schedules or notes) have been prepared in accordance
          with Argentine GAAP, present fairly the consolidated financial
          position of YPF and its Subsidiaries as at the respective dates
          of such consolidated balance sheets and the consolidated results
          of operations, cash flows and changes in financial position of
          YPF and its Subsidiaries for the fiscal periods ended on said
          dates.  Since December 31, 1994 there have been no changes in the
          business, financial condition, operations, assets, liabilities or
          prospects of YPF and its Subsidiaries from that set forth in the


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                                      Schedule I
                                      ----------











<PAGE>
                                        - 2 -
          consolidated balance sheet as of that date, other than changes in
          the ordinary course of business which have not, either
          individually or in the aggregate, had a Schedule YPF Material
          Adverse Effect. 

                    4.  Litigation, etc.  There is no action, suit,
                        ----------------
          proceeding or investigation at law or in equity by or before any
          court, governmental body, agency, commission or other tribunal
          now pending or, to the best of YPF's knowledge after due inquiry,
          threatened against or affecting YPF or its Subsidiaries or its or
          its Subsidiaries' property or rights (a) which questions or would
          question the validity of the Basic Documents to which it is a
          party or (b) as to which there is a significant possibility of an
          adverse determination and which if adversely determined (i) may
          have a Schedule YPF Material Adverse Effect or (ii) could impair
          the ability of YPF to perform its obligations under the Basic
          Documents to which it is a party.  

                    5.  Governmental Consents.  No consent, approval or
                        ---------------------
          authorization of, or declaration or filing with, any governmental
          authority is required for the valid execution, delivery and
          performance by YPF of the Basic Documents to which it is a party. 

                    6.  Taxes.  Under the laws of Argentina, the execution,
                        -----
          delivery and performance by YPF of its obligations under the
          Basic Documents and all payments of principal, interest, fees and
          other amounts thereunder are exempt from all income or
          withholding taxes, stamp taxes, charges or contributions of
          Argentina or any political subdivision or taxing authority
          thereof, irrespective of the fact that the Agent or any of the
          Lenders may have a representative office or subsidiary in
          Argentina; provided, however, that all payments of interest under
                     --------  -------
          the Basic Documents are subject to a withholding tax at the rate
          of 12%; and provided further, that fees are not subject to
                      -------- -------
          withholding taxes if they are paid for services rendered outside
          of Argentina. 

                    7.  Authorization.  YPF has all necessary corporate
                        -------------
          power, authority and legal right to execute, deliver and perform
          its obligations under the Basic Documents.  The Basic Documents
          to which YPF is or is intended to be a party have been duly
          authorized by all requisite corporate and other actions and duly
          executed and delivered by authorized officers of YPF, and are the
          valid obligations of YPF, legally binding upon and enforceable
          against YPF in accordance with their respective terms, except as
          such enforceability may be limited by (a) applicable bankruptcy,
          insolvency, reorganization, moratorium or other similar laws
          affecting the enforcement of creditors' rights generally and
          (b) general principles of equity (regardless of whether such
          enforceability is considered in a proceeding in equity or at
          law). 




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                                      Schedule I
                                      ----------











<PAGE>
                                        - 3 -
                    8.  No Conflicts.  The execution, delivery and
                        ------------
          performance by YPF of the Basic Documents to which it is a party
          do not and will not violate the provisions of any applicable law
          or regulation of Argentina (or of any political subdivision
          thereof) presently in effect or any order of any court,
          regulatory body or arbitral tribunal or of the estatutos of YPF,
                                                         ---------
          other than violations that individually or collectively could not
          have a Schedule YPF Material Adverse Effect, and do not and will
          not constitute a breach or default or require any consent under,
          or result in the creation of any Lien on any of the present or
          future revenues and properties of YPF or any of its Subsidiaries
          pursuant to, any agreement, instrument or document to which YPF
          or any of its Subsidiaries is a party or by which YPF or any of
          its or its Subsidiaries' respective properties or revenues may be
          bound or affected except to the extent that such breaches,
          defaults or Liens individually or collectively could not have a
          Schedule YPF Material Adverse Effect.

                    9.  Commercial Obligations.  YPF is subject to civil
                        ----------------------
          and commercial law with respect to its obligations under the
          Credit Agreement and the Pledge Agreement, and the execution,
          delivery and performance by YPF of its obligations under the
          Credit Agreement and the Pledge Agreement, constitute private and
          commercial acts; and neither YPF nor any of its properties or
          revenues is entitled to any right of immunity from suit, court
          jurisdiction, attachment prior to judgment, attachment in aid of
          execution of a judgment, set-off, execution of a judgment or from
          any other legal process with respect to its obligations under the
          Credit Agreement or the Pledge Agreement.

                    10.  Enforceability.  Each of the Credit Agreement and
                         --------------
          the Pledge Agreement is in proper legal form under the laws of
          Argentina for the enforcement thereof against YPF in the courts
          of Argentina and it is not necessary, to ensure the
          enforceability or admissibility in evidence of the Credit
          Agreement and the Pledge Agreement, that the same be filed or
          recorded with any court or other authority in Argentina except
          that if any of the Basic Documents is enforced before the courts
          of the city of Buenos Aires, the payment of a court tax of 3% on
          the amount of the claim is required; and except further that an
          official Spanish translation of the Basic Documents is required
          to bring an action thereof in the courts of Argentina.

                    11.  Ranking.  YPF's obligations under Section 6 of the
                         -------
          Credit Agreement will be direct and unconditional general
          obligations of YPF and will rank in right of payment at least
          pari passu with all other Indebtedness of YPF, except to the
          ---- -----
          extent any such other Indebtedness is accorded preference by
          reason of collateral security for such other Indebtedness.

                    12.  Environmental Matters.  YPF has obtained all
                         ---------------------
          permits, licenses and other authorizations which are required
          under all environmental laws and regulations, except to the


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                                      Schedule I
                                      ----------











<PAGE>
                                        - 4 -
          extent failure to have any such permit, license or authorization
          would not have a Schedule YPF Material Adverse Effect.  YPF is in
          compliance with the terms and conditions of all such permits,
          licenses and authorizations and of all other limitations,
          restrictions, conditions, standards, prohibitions, requirements,
          obligations, schedules and timetables contained in any applicable
          environmental law or in any regulation or code (as such laws,
          regulations or codes are currently being interpreted or enforced)
          or any plan, order, decree, judgment, injunction, notice or
          demand letter issued, entered, promulgated or approved
          thereunder, except to the extent failure to comply would not have
          a Schedule YPF Material Adverse Effect.

                    13.  Exploration, Permits, Etc.  All oil and gas
                         --------------------------
          exploration permits and production and transportation concessions
          held by YPF are in effect and YPF is not in breach of any of its
          obligations thereunder or in connection therewith that may
          potentially cause the forfeiture of its rights under said permits
          and concessions or impair or otherwise affect the exercise of its
          rights thereunder except to the extent that any such breach would
          not cause a Schedule YPF Material Adverse Effect.

                    For the purposes of this Schedule I, the following
          terms shall have the following meanings:

                    "Argentine GAAP" shall mean generally accepted
                     --------------
               accounting principles in Argentina as in effect from time to
               time.

                    "Capital Lease Obligations" shall mean, for any Person,
                     -------------------------
               all obligations of such Person to pay rent or other amounts
               under a lease of (or other agreement conveying the right to
               use) Property to the extent such obligations are required to
               be classified and accounted for as a capital lease on a
               balance sheet of such Person under Argentine GAAP, and, for
               purposes of this Agreement, the amount of such obligations
               shall be the capitalized amount thereof, determined in
               accordance with Argentine GAAP.

                    "Indebtedness" shall mean with respect to any Person,
                     ------------
               (a) any liability of such Person (i) for money borrowed, or
               under any reimbursement obligation relating to a letter of
               credit, (ii) evidenced by a bond, note, debenture or similar
               instrument (including a purchase money obligation) given in
               connection with the acquisition of any businesses,
               properties or assets of any kind (other than a trade payable
               or a liability arising in the ordinary course of business,
               so long as such trade payable or liability is payable within
               90 days of the date the respective goods are delivered or
               the respective services are rendered), or (iii) for Capital
               Lease Obligations; (b) all Redeemable Stock issued by such
               Person (the amount of Indebtedness being represented by any
               involuntary liquidation preference plus accrued and unpaid


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                                      Schedule I
                                      ----------











<PAGE>
                                        - 5 -
               dividends); (c) any liability of others described in the
               preceding clause (a) that such Person has guaranteed; and
               (d) (without duplication) any amendment, supplement,
               modification, deferral, renewal, extension or refunding of
               any liability of the types referred to in clauses (a), (b)
               and (c) above.  For purposes of determining any particular
               amount of Indebtedness under this definition, Guarantees of
               (or obligations with respect to letters of credit
               supporting) Indebtedness otherwise included in the
               determination of such amount shall not also be included.

                    "Redeemable Stock" shall mean any class or series of
                     ----------------
               capital stock of any Person that by its terms or otherwise
               is required to be redeemed prior to the final maturity of
               the Notes (as defined in the YPF Credit Agreement), or is
               redeemable at the option of the holder thereof at any time
               prior to the final maturity of the Loans (as defined in the
               YPF Credit Agreement).

                    "Schedule YPF Material Adverse Effect" shall mean the
                     ------------------------------------
               occurrence of any event or condition with respect to YPF
               which has a material adverse effect on (a) the financial
               condition, results of operations or the shareholders' equity
               of YPF and its Subsidiaries taken as a whole, (b) the
               ability of YPF to perform its payment and other material
               obligations under any of the Basic Documents to which it is
               or is intended to be a party, (c) the validity or
               enforceability of the obligations of YPF under any of the
               Basic Documents to which it is or is intended to be a party,
               or (d) the ability of the Lenders and the Agent to enforce
               their rights and remedies against YPF under any of the Basic
               Documents to which it is or is intended to be a party.

                    "Subsidiary" shall mean, with respect to any Person,
                     ----------
               any corporation or other business entity of which such
               Person owns or controls (either directly or through another
               or other Subsidiaries) more than 50% of the issued share
               capital or other ownership interest, in each case having
               ordinary voting power to elect directors, managers or
               trustees of such corporation or other business entity
               (whether or not capital stock or other ownership interest of
               any other class or classes shall or might have voting power
               upon the occurrence of any contingency).












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                                      Schedule I
                                      ----------











<PAGE>
                                                                SCHEDULE II
                                   Covenants of YPF
                                   ----------------


                    Capitalized terms used in this Schedule II (unless
          otherwise defined in this Schedule II) shall have the meanings
          ascribed to them in the Credit Agreement.  In addition, as used
          in this Schedule II, any references to a Subsidiary or
          Subsidiaries of YPF shall be deemed (other than with respect to
          Item 7 and the definition of "Total Indebtedness") to refer to a
          Subsidiary or Subsidiaries of YPF (as the case may be) other than
          YPF Acquisition and its Subsidiaries and Maxus and its
          Subsidiaries.

                    Section 8.  Covenants of YPF.
                                ----------------

                    1.  Maintenance of Existence.  YPF shall, and shall
                        ------------------------
          cause each of its Subsidiaries to, (i) maintain in effect its
          corporate existence and all registrations necessary therefor and
          (ii) take all reasonable actions to maintain all rights,
          privileges, titles to property, franchises and the like necessary
          or desirable in the normal conduct of its business, activities or
          operations; provided, however, that this covenant shall not
                      --------  -------
          prohibit any transaction by YPF or any of its Subsidiaries
          otherwise permitted under Item 16 of this Schedule II and this
          covenant shall not require YPF to maintain any such right,
          privilege, title to property or franchise or to preserve the
          corporate existence of any Subsidiary, if the Board of Directors
          of YPF shall determine that (i) the maintenance or preservation
          thereof is no longer desirable in the conduct of the business of
          YPF and its Subsidiaries taken as a whole and (ii) the loss
          thereof is not, and will not be, adverse in any material respect
          to the Lenders. 

                    2.  Maintenance of Properties.  YPF shall cause all
                        -------------------------
          tangible Properties used or useful in the conduct of its business
          or the business of any Subsidiary of YPF to be maintained and
          kept in good condition, repair and working order and supplied
          with all necessary equipment and will cause to be made all
          necessary repairs, renewals, replacements and improvements
          thereof, all as in the judgment of YPF may be necessary so that
          the business carried on in connection therewith may be properly
          and advantageously conducted at all times; provided, however,
                                                     --------
          that nothing shall prevent YPF from discontinuing the operation
          or maintenance of any of such Properties if such discontinuance
          is, as determined by the Board of Directors of YPF in good faith,
          desirable in the conduct of the business of YPF and its
          Subsidiaries taken as a whole and not adverse in any material
          respect to the Lenders.

                    3.  Payments of Taxes and Other Claims.  YPF shall pay
                        ----------------------------------
          or discharge or cause to be paid or discharged, before the same
          shall become delinquent,  (i) all taxes, assessments, royalties


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                                     Schedule II
                                     -----------











<PAGE>
                                        - 2 -

          and governmental charges levied or imposed upon YPF or any of its
          Subsidiaries, and (ii) all lawful claims for labor, materials and
          supplies which, if unpaid, might by law become a lien upon the
          Property of YPF or any of its Subsidiaries; provided, however,
                                                      --------  -------
          that YPF will not be required to pay or discharge or cause to be
          paid or discharged any such tax, assessment, charge or claims
          whose amount, applicability or validity is being contested in
          good faith by appropriate proceedings.  

                    4.  Maintenance of Insurance.  YPF shall, and shall
                        ------------------------
          cause each of its Subsidiaries to, keep at all times all of their
          Properties which are of an insurable nature insured against loss
          or damage with insurers believed by YPF to be responsible to the
          extent that Property of similar characteristics is usually so
          insured by corporations similarly situated and owing like
          Properties in accordance with good business practice.

                    5.  Negative Pledge.  YPF shall not, and shall not
                        ---------------
          permit any of its Subsidiaries to, create or suffer to exist any
          Lien on any of their present or future Property, in each case to
          secure Indebtedness, unless all of the Guaranteed Obligations are
          equally and ratably secured, except for:

                    (i)  any Lien on any Property existing on the date of
               the Credit Agreement;

                   (ii)  any Lien on any asset securing Indebtedness
               incurred or assumed solely for the purpose of financing all
               or any part of the cost of acquiring or constructing such
               asset;

                  (iii)  any Lien on any Property existing thereon at the
               time of acquisition of such Property and not created in
               connection with such acquisition;

                   (iv)  any Lien on any Property owned by a corporation or
               other Person, which Lien exists at the time of the
               acquisition of such corporation or other Person by YPF or
               any of its Subsidiaries and which Lien is not created in
               connection with such acquisition;

                    (v)  any Lien on any Property securing an extension,
               renewal or refunding of Indebtedness secured by a Lien
               referred to in (i), (ii), (iii) or (iv) above, provided that
               such new Lien is limited to the Property which was subject
               to the prior Lien immediately before such extension, renewal
               or refunding, and provided that the principal amount of
               Indebtedness secured by the prior Lien immediately before
               such extension, renewal or refunding is not increased;




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                                     -----------











<PAGE>
                                        - 3 -

                   (vi)  any Lien in the form of a tax or other statutory
               lien, provided that any such lien shall be discharged within
               thirty (30) days after the date it is created or arises
               (unless contested in good faith by YPF or a Subsidiary, in
               which case it shall be discharged within thirty (30) days
               after final adjudication); or

                  (vii)  any other Lien on assets of YPF or any Subsidiary,
               provided that the assets securing such Indebtedness together
               with all other Property of YPF securing any Indebtedness
               under this subparagraph (vii) do not exceed 15% of the total
               assets of YPF; provided, however, for purposes of this
                              --------  -------
               clause (vii) that (A) the value of such assets, Property and
               total assets shall be determined by reference to the most
               recent audited balance sheet of YPF prepared in accordance
               with Argentine GAAP, and (B) the value of the assets and
               Property securing Indebtedness shall not exceed the
               outstanding principal amount of such Indebtedness. 

                    6.  Limitations on Sale and Leaseback Transactions. 
                        ----------------------------------------------
          YPF shall not enter into, renew or extend, or permit any
          Subsidiary to enter into, renew or extend, any transaction or
          series of related transactions pursuant to which YPF or any such
          Subsidiary sells or transfers any Property in connection with the
          leasing, or the release against installment payments, or as part
          of an arrangement involving the leasing or resale against
          installment payments, of such Property to the seller or
          transferor ("Sale and Leaseback Transaction") except (i) a Sale
                       ------------------------------
          and Leaseback Transaction that, had such Sale and Leaseback
          Transaction been structured as a mortgage loan rather than as a
          Sale and Leaseback Transaction, YPF would have been permitted to
          enter into such transaction pursuant to the terms of the covenant
          described in Item 5 of this Schedule II and (ii) a Sale and
          Leaseback Transaction entered into prior to the date of the
          Credit Agreement.  

                    7.  Financial Statements.  YPF shall furnish or cause
                        --------------------
          to be furnished to the Agent (with a copy for each Lender) (i)
          annual reports in English, which will include a report of YPF's
          statutory audit committee and annual audited financial statements
          prepared in conformity with Argentine GAAP, together with a
          reconciliation to generally accepted accounting principles as in
          effect in the United States of America of net income and
          shareholders' equity and (ii) quarterly reports in English which
          will include unaudited interim financial information prepared in
          conformity with Argentine GAAP.  YPF will furnish to the Agent
          (with a copy for each Lender), at the time it furnishes each set
          of financial information, a certificate of the chief financial
          officer of YPF to the effect that no Default has occurred and is
          continuing (or, if any Default has occurred and is continuing,
          describing the same in reasonable detail and describing the


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<PAGE>
                                        - 4 -

          action that YPF has taken or proposes to take with respect
          thereto).  YPF also shall furnish or cause to be furnished to the
          Agent (with a copy for each Lender) in English (i) all notices of
          shareholders' meetings and other reports and communications that
          are made generally available to YPF's shareholders and (ii)
          registration statements and regular and periodic reports which
          YPF shall have filed with the Commission, any United States
          securities exchange, the Argentine Securities Commission
          ("Comision Nacional de Valores"), the Buenos Aires Stock Exchange
            ----------------------------
          or any other stock exchange in Argentina.  Notwithstanding the
          provisions of this Item 7, YPF shall have no obligation to
          provide an English translation of any such report filed with the
          Argentine Securities Commission, the Buenos Aires Stock Exchange
          or any other stock exchange in Argentina if a report in English
          providing substantially the same information (with no material
          differences) has been furnished to the Agent in accordance with
          this Item 7.  From time to time YPF shall furnish to the Agent
          such other information regarding the financial condition,
          operations, business or prospects of YPF or any of its
          Subsidiaries as the Agent or any Lender (through the Agent) may
          reasonably request.

                    8.  Compliance with Laws and Other Agreements.  YPF
                        -----------------------------------------
          shall, and shall cause each of its Subsidiaries to, comply with
          all applicable laws, rules, regulations, orders and directions of
          any governmental or regulatory authority or agency having
          jurisdiction over it or its business and all of the covenants and
          obligations contained in any agreements to which YPF or any
          Subsidiary is a party, except where the failure to so comply
          would not have a Schedule YPF Material Adverse Effect.   

                    9.  Maintenance of Books and Records.  YPF shall, and
                        --------------------------------
          shall cause each of its Argentine Subsidiaries to, maintain
          books, accounts and records in accordance with Argentine GAAP.  

                    10.  Inspection.  YPF shall permit representatives of
                         ----------
          the Agent or any Lender, during normal business hours and at the
          expense of the Agent or such Lender (as the case may be), to
          examine, copy and make extracts from its books and records, to
          inspect any of its Properties, and to discuss its business and
          affairs with its officers, all to the extent reasonably requested
          by the Agent or such Lender.

                    11.  Further Assurances.  YPF will, at its own cost and
                         ------------------
          expense, execute and deliver to the Agent (with a copy for each
          Lender, if requested by the Agent) all such documents,
          instruments and agreements and do all such other acts and things
          as may be reasonably required, in the opinion of the Agent or the
          Majority Lenders (acting through the Agent), to enable the
          Lenders to exercise and enforce their rights under the Basic
          Documents.


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                                     -----------











<PAGE>
                                        - 5 -

                    12.  Ranking.  YPF will ensure that at all times its
                         -------
          obligations under Section 6 of the Credit Agreement rank at least
          pari passu (whether in priority of payment or otherwise) with all
          ---- -----
          of its other Indebtedness, except to the extent any such other
          Indebtedness is accorded preference by reason of collateral
          security for such other Indebtedness.

                    13.  Litigation.  YPF will promptly give to the Agent
                         ----------
          notice of all legal or arbitral proceedings, and of all
          proceedings by or before any governmental or regulatory authority
          or agency, and any material development in respect of such legal
          or other proceedings, affecting YPF or any of its Subsidiaries,
          except proceedings which, if adversely determined, would not have
          a Schedule YPF Material Adverse Effect.

                    14.  Total Indebtedness.  YPF shall not permit at any
                         ------------------
          time Total Indebtedness to exceed 45% of Total Capitalization.

                    15.  Tangible Net Worth.  YPF shall not permit at any
                         ------------------
          time Tangible Net Worth (expressed in Argentine pesos) to be less
          than 3,980,000,000 Argentine pesos which is equal to 80% of
          Tangible Net Worth as at December 31, 1994.

                    16.  Merger, Etc.  YPF shall not, and shall not permit
                         ------------
          any of its Significant Subsidiaries to, merge or consolidate with
          or into, or convey, transfer or lease their respective Properties
          substantially as an entirety to, any Person, unless immediately
          after giving effect to such transaction, (a) no Default shall
          have occurred and be continuing, and (b) with respect to a merger
          or consolidation of YPF with or into any Person, (i) any
          corporation formed by any merger or consolidation with YPF or the
          Person which acquires by conveyance or transfer, or which leases,
          the Properties of YPF substantially as an entirety ("YPF's
                                                               -----
          Successor Corporation") shall be an Argentine corporation and
          ---------------------
          shall expressly assume the due and punctual payment of the
          principal of, and interest on the Loans according to their terms,
          and the due and punctual performance of all of the covenants and
          obligations of YPF under the Transaction Documents; provided that
                                                              --------
          nothing in this Item 16 shall prohibit the Merger.

                    17.  Maintenance of Concessions, Permits, Leases and
                         -----------------------------------------------
          Licenses.  YPF shall maintain in full force and effect and good
          --------
          standing (and renew or extend when appropriate) all its rights
          under any existing or future oil and gas exploration permits and
          production and transportation concessions, leases or licenses and
          to observe and perform all conditions or restrictions contained
          or arising thereunder except to the extent any such failure
          (i) to maintain, observe or perform would not have a Schedule YPF
          Material Adverse Effect or (ii) arises from the scheduled
          expiration thereof in accordance with its terms.



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                                     -----------











<PAGE>
                                        - 6 -

                    18.  Maintenance of Sales Agreements.  YPF shall
                         -------------------------------
          maintain in place and renew or replace in accordance with sound
          and prudent business and financial practices all of its crude oil
          and other hydrocarbon sales agreements currently in force except
          to the extent that any such failure to maintain, renew or replace
          would not have a Schedule YPF Material Adverse Effect.
           
                    For purposes of this Schedule II, the following terms
          shall have the following meanings:

                    "Argentine GAAP" shall mean generally accepted
                     --------------
               accounting principles in Argentina as in effect from time to
               time.

                    "Capital Lease Obligations" shall mean, for any Person,
                     -------------------------
               all obligations of such Person to pay rent or other amounts
               under a lease of (or other agreement conveying the right to
               use) Property to the extent such obligations are required to
               be classified and accounted for as a capital lease on a
               balance sheet of such Person under Argentine GAAP, and, for
               purposes of this Agreement, the amount of such obligations
               shall be the capitalized amount thereof, determined in
               accordance with Argentine GAAP.

                    "Indebtedness" shall mean with respect to any Person,
                     ------------
               (a) any liability of such Person (i) for money borrowed, or
               under any reimbursement obligation relating to a letter of
               credit, (ii) evidenced by a bond, note, debenture or similar
               instrument (including a purchase money obligation) given in
               connection with the acquisition of any businesses,
               properties or assets of any kind (other than a trade payable
               or a liability arising in the ordinary course of business,
               so long as such trade payable or liability is payable within
               90 days of the date the respective goods are delivered or
               the respective services are rendered), or (iii) for Capital
               Lease Obligations; (b) all Redeemable Stock issued by such
               Person (the amount of Indebtedness being represented by any
               involuntary liquidation preference plus accrued and unpaid
               dividends); (c) any liability of others described in the
               preceding clause (a) that such Person has guaranteed; and
               (d) (without duplication) any amendment, supplement,
               modification, deferral, renewal, extension or refunding of
               any liability of the types referred to in clauses (a), (b)
               and (c) above.  For purposes of determining any particular
               amount of Indebtedness under this definition, Guarantees of
               (or obligations with respect to letters of credit
               supporting) Indebtedness otherwise included in the
               determination of such amount shall not also be included.

                    "Redeemable Stock" shall mean any class or series of
                     ----------------
               capital stock of any Person that by its terms or otherwise


          BII\32161_1  04/07/95  10:16am
                                     Schedule II
                                     -----------











<PAGE>
                                        - 7 -

               is required to be redeemed prior to the final maturity of
               the Notes (as defined in the YPF Credit Agreement), or is
               redeemable at the option of the holder thereof at any time
               prior to the final maturity of the Loans (as defined in the
               YPF Credit Agreement).

                    "Schedule YPF Material Adverse Effect" shall mean the
                     ------------------------------------
               occurrence of any event or condition with respect to YPF
               which has a material adverse effect on (a) the financial
               condition, results of operations or the shareholders' equity
               of YPF and its Subsidiaries taken as a whole, (b) the
               ability of YPF to perform its payment and other material
               obligations under any of the Basic Documents to which it is
               or is intended to be a party, (c) the validity or
               enforceability of the obligations of YPF under any of the
               Basic Documents to which it is or is intended to be a party,
               or (d) the ability of the Lenders and the Agent to enforce
               their rights and remedies against YPF under any of the Basic
               Documents to which it is or is intended to be a party.

                    "Significant Subsidiary" shall mean a Subsidiary of YPF
                     ----------------------
               which is material to the condition, financial or otherwise,
               or to the earnings, operations, business affairs or business
               prospects of YPF and its Subsidiaries taken as a whole.  

                    "Subsidiary" shall mean, with respect to any Person,
                     ----------
               any corporation or other business entity of which such
               Person owns or controls (either directly or through another
               or other Subsidiaries) more than 50% of the issued share
               capital or other ownership interest, in each case having
               ordinary voting power to elect directors, managers or
               trustees of such corporation or other business entity
               (whether or not capital stock or other ownership interest of
               any other class or classes shall or might have voting power
               upon the occurrence of any contingency).

                    "Tangible Net Worth" shall mean, as at any date, the
                     ------------------
               amount for YPF (determined in accordance with Argentine
               GAAP) of (a) shareholders' equity as at such date minus
                                                                 -----
               (b) the sum of the following as at such date: the cost of
               treasury shares and the book value of all assets that should
               be classified as intangibles (without duplication of
               deductions in respect of items already deducted in arriving
               at surplus and retained earnings) but in any event including
               goodwill, minority interests, research and development
               costs, trademarks, trade names, copyrights, patents and
               franchises, unamortized debt discount and expense, all
               reserves for losses, contingencies, or other liabilities
               (but only to the extent such reserves were not deducted in
               arriving at shareholders' equity) and any write-up in the
               book value of assets resulting from a revaluation thereof


          BII\32161_1  04/07/95  10:16am
                                     Schedule II
                                     -----------











<PAGE>
                                        - 8 -

               subsequent to December 31, 1994 other than as a result of
               the Merger.

                    "Total Capitalization" shall mean as at any date
                     --------------------
               (a) Total Indebtedness as at such date plus (b)
               shareholders' equity of YPF as at such date.

                    "Total Indebtedness" shall mean as at any date all
                     ------------------
               Indebtedness of YPF and its Subsidiaries as of such date,
               determined on a consolidated basis in accordance with
               Argentine GAAP.










































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                                     Schedule II
                                     -----------











<PAGE>
                                                               SCHEDULE III
                        Events of Default with respect to YPF
                        -------------------------------------


                    Capitalized terms used in this Schedule III (unless
          otherwise defined in this Schedule III) shall have the meanings
          assigned to them in the Credit Agreement.  In addition, as used
          in this Schedule III, any references to a Subsidiary or
          Subsidiaries of YPF shall be deemed to refer to a Subsidiary or
          Subsidiaries of YPF (as the case may be) other than YPF
          Acquisition and its Subsidiaries and Maxus and its Subsidiaries.

                    1.  YPF shall default in the performance of any of its
               obligations under any of Items 12, 14, 15 or 16 of Schedule
               II to the Credit Agreement; or YPF shall default in the
               performance of any of its other obligations under the Basic
               Documents and such default shall continue unremedied for a
               period of 30 or more days after notice thereof to YPF by the
               Agent or any Lender (through the Agent).

                    2.  An Event of Default (as defined in the YPF Credit
               Agreement) under Section 9(a) of the YPF Trade Credit
               Agreement shall occur.

                    3.  YPF or any Subsidiary shall (a) default in the
               payment of the principal of or interest on, any other note,
               bond, coupon or other instrument evidencing Indebtedness in
               an amount of $20,000,000 or more (other than the Notes, as
               defined in the YPF Credit Agreement) issued, assumed or
               guaranteed by it, when and as the same shall become due and
               payable, if such default shall continue for more than the
               period of grace, if any, originally applicable thereto and
               the time for payment of such amount has not been expressly
               extended, or (b) default in the observance of any other
               terms and conditions relating to any such Indebtedness, if
               the effect of such default is to cause such Indebtedness to
               become due prior to its stated maturity.

                    4.  Any government or governmental authority shall have
               condemned, nationalized, seized, or otherwise expropriated
               all or any substantial part of the Property of YPF or any
               Subsidiary or the share capital of YPF or any such
               Subsidiary, or shall have assumed custody or control of such
               Property or of the business or operations of YPF or any such
               Subsidiary or of the share capital of YPF or any such
               Subsidiary, or shall have taken any action for the winding-
               up or dissolution of YPF or any such Subsidiary or any
               action that would prevent YPF or any such Subsidiary or its
               officers from carrying on its business or operations or a
               substantial part thereof for a period of longer than thirty
               (30) days and the result of any such action shall materially
               prejudice the ability of YPF to perform its obligations
               under the Basic Documents to which it is a party. 


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                                     Schedule III
                                     ------------











<PAGE>
                                        - 2 -

                    5.  It becomes unlawful for YPF to perform any of its
               obligations under any of the Basic Documents to which it is
               a party, or any of its obligations thereunder ceases to be
               valid, binding or enforceable.

                    6.  A resolution is passed or adopted by the Board of
               Directors or stockholders of YPF, or a judgment of a court
               of competent jurisdiction is made, that YPF be wound up or
               dissolved, other than for the purposes of or pursuant to a
               merger or consolidation otherwise permitted under and in
               accordance with the terms of Item 16 of Schedule II to the
               Credit Agreement, and any winding up, dissolution or
               liquidation proceedings remain undismissed for thirty (30)
               days.

                    7.  An attachment, execution, seizure before judgment
               or other legal process is levied or enforced upon any part
               of the Property of YPF or any Subsidiary which Property is
               material to the condition, financial or otherwise, or to the
               earnings, operations, business affairs or business prospects
               of YPF and its Subsidiaries taken as a whole, and (a) such
               attachment, execution, seizure before judgment or other
               legal process is not discharged within thirty (30) days
               thereof or (b) if such attachment, execution, seizure before
               judgment or other legal process shall not have been
               discharged within such 30-day period, YPF or such
               Subsidiary, as the case may be, shall not have within such
               30-day period contested such attachment, execution, seizure
               before judgment or other legal process in good faith by
               appropriate proceedings upon stay of execution of the
               enforcement thereof or upon posting a bond in connection
               therewith; provided, however, that in no event shall the
                          --------  -------
               grace period provided by clause (b) above extend beyond the
               60th day after the initiation of such proceedings.

                    8.  A court having jurisdiction enters a decree or
               order for (a) relief in respect of YPF or any Significant
               Subsidiary in an involuntary case under Argentine Law No.
               19,551 or any applicable bankruptcy, insolvency or other
               similar law now or hereafter in effect or (b) appointment of
               an administrator, receiver, trustee or intervenor for YPF or
               any Significant Subsidiary for all or substantially all of
               the Property of YPF or any Significant Subsidiary and, in
               each case, such decree or order shall remain unstayed and in
               effect for a period of thirty (30) consecutive days.

                    9.  YPF or any Significant Subsidiary (a) commences a
               voluntary case under Argentine Law No. 19,551 or any
               applicable bankruptcy, insolvency or other similar law now
               or hereafter in effect, (b) consents to the appointment of
               or taking possession by an administrator, receiver, trustee


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                                     Schedule III
                                     ------------











<PAGE>
                                        - 3 -

               or intervenor for YPF or any Significant Subsidiary for all
               or substantially all of the Property of YPF or any
               Significant Subsidiary or (c) effects any general assignment
               for the benefit of creditors.

                    10.  A moratorium is agreed or declared in respect of
               any Indebtedness of YPF, or of any Significant Subsidiary,
               or any government or governmental authority condemns,
               seizes, compulsorily purchases or expropriates 10% or more
               of the assets of YPF and its Subsidiaries considered as one
               enterprise.

                    11.  Any event occurs which under the laws of any
               relevant jurisdiction has an analogous effect to any of the
               events referred to in Item 9 of this Schedule III.

                    For purposes of this Schedule III, the following term
          shall have the following meaning:

                    "Argentine GAAP" shall mean generally accepted
                     --------------
               accounting principles in Argentina as in effect from time to
               time.

                    "Capital Lease Obligations" shall mean, for any Person,
                     -------------------------
               all obligations of such Person to pay rent or other amounts
               under a lease of (or other agreement conveying the right to
               use) Property to the extent such obligations are required to
               be classified and accounted for as a capital lease on a
               balance sheet of such Person under Argentine GAAP, and, for
               purposes of this Agreement, the amount of such obligations
               shall be the capitalized amount thereof, determined in
               accordance with Argentine GAAP.

                    "Indebtedness" shall mean with respect to any Person,
                     ------------
               (a) any liability of such Person (i) for money borrowed, or
               under any reimbursement obligation relating to a letter of
               credit, (ii) evidenced by a bond, note, debenture or similar
               instrument (including a purchase money obligation) given in
               connection with the acquisition of any businesses,
               properties or assets of any kind (other than a trade payable
               or a liability arising in the ordinary course of business,
               so long as such trade payable or liability is payable within
               90 days of the date the respective goods are delivered or
               the respective services are rendered), or (iii) for Capital
               Lease Obligations; (b) all Redeemable Stock issued by such
               Person (the amount of Indebtedness being represented by any
               involuntary liquidation preference plus accrued and unpaid
               dividends); (c) any liability of others described in the
               preceding clause (a) that such Person has guaranteed; and
               (d) (without duplication) any amendment, supplement,
               modification, deferral, renewal, extension or refunding of


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                                     Schedule III
                                     ------------











<PAGE>
                                        - 4 -

               any liability of the types referred to in clauses (a), (b)
               and (c) above.  For purposes of determining any particular
               amount of Indebtedness under this definition, Guarantees of
               (or obligations with respect to letters of credit
               supporting) Indebtedness otherwise included in the
               determination of such amount shall not also be included.

                    "Redeemable Stock" shall mean any class or series of
                     ----------------
               capital stock of any Person that by its terms or otherwise
               is required to be redeemed prior to the final maturity of
               the Notes (as defined in the YPF Credit Agreement), or is
               redeemable at the option of the holder thereof at any time
               prior to the final maturity of the Loans (as defined in the
               YPF Credit Agreement).

                    "Schedule YPF Material Adverse Effect" shall mean the
                     ------------------------------------
               occurrence of any event or condition with respect to YPF
               which has a material adverse effect on (a) the financial
               condition, results of operations or the shareholders' equity
               of YPF and its Subsidiaries taken as a whole, (b) the
               ability of YPF to perform its payment and other material
               obligations under any of the Basic Documents to which it is
               or is intended to be a party, (c) the validity or
               enforceability of the obligations of YPF under any of the
               Basic Documents to which it is or is intended to be a party,
               or (d) the ability of the Lenders and the Agent to enforce
               their rights and remedies against YPF under any of the Basic
               Documents to which it is or is intended to be a party.

                    "Significant Subsidiary" shall mean a Subsidiary of YPF
                     ----------------------
               which is material to the condition, financial or otherwise,
               or to the earnings, operations, business affairs or business
               prospects of YPF and its Subsidiaries taken as a whole.  

                    "Subsidiary" shall mean, with respect to any Person,
                     ----------
               any corporation or other business entity of which such
               Person owns or controls (either directly or through another
               or other Subsidiaries) more than 50% of the issued share
               capital or other ownership interest, in each case having
               ordinary voting power to elect directors, managers or
               trustees of such corporation or other business entity
               (whether or not capital stock or other ownership interest of
               any other class or classes shall or might have voting power
               upon the occurrence of any contingency).









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                                     Schedule III
                                     ------------











<PAGE>
                                                                SCHEDULE IV
                                      Litigation
                                      ----------

                                  [See Section 8.02]




















































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                                     Schedule IV
                                     -----------












                                                                Exhibit B

                                             February 24, 1995


          YPF Sociedad Anonima
          Avenida Pte R. Saenz Pena 777
          1364 Buenos Aires, Argentina


          Ladies and Gentlemen:

                    You ("Sponsor") have advised The Chase Manhattan Bank
                          -------
          (National Association) ("Chase" and, together with its
                                   -----
          affiliates, the "Chase Entities") that you propose to acquire the
                           --------------
          company which we have code-named Cowboy (the "Target") in a
                                                        ------
          transaction pursuant to which a newly-formed indirect subsidiary
          of Sponsor (the "Company") will make a cash tender offer (the
                           -------
          "Tender Offer") for all of the issued and outstanding shares of
           ------------
          common stock of Target (the "Target Shares").  All of the capital
                                       -------------
          stock of the Company will be owned by a newly-formed corporation
          ("Holdings") and all of the capital stock of Holdings will be
            --------
          owned by Sponsor.


                    We understand that the Tender Offer is to be
          conditioned upon, among other things, there being validly
          tendered prior to the expiration of the Tender Offer, and not
          withdrawn, Target Shares representing not less than 50.1% (on a
          fully diluted basis) of the outstanding Target Shares and the
          Target's outstanding $4.00 Cumulative Convertible Preferred
          shares (the "Voting Preferred Shares"), but in an amount not less
                       -----------------------
          than the number of Target Shares and Voting Preferred Shares
          required to permit the Merger referred to below to occur
          promptly.


<PAGE>


                                        - 2 -


                    As promptly as practicable following the purchase of
          Target Shares pursuant to the Tender Offer (the "Tender Offer
                                                           ------------
          Closing"), the Company will merge (the "Merger" and, together
          -------                                 ------
          with the Tender Offer, the "Acquisition") with and into Target
                                      -----------
          pursuant to an agreement of merger (the "Merger Agreement") to be
                                                   ----------------
          entered into by Target, the Company and Sponsor prior to the
          commencement of the Tender Offer.  By virtue of the Merger, the
          holders of Target Shares (other than the Company and the
          stockholders of Target who perfect their appraisal rights under
          Delaware law) will be entitled to receive cash in an amount equal
          to the price paid for each Target Share pursuant to the Tender
          Offer.


                    Sponsor has requested that senior financing aggregating
          up to U.S. $800,000,000 (the "Senior Facilities") be made
                                        -----------------
          available to Sponsor, the Company and the other entities
          specified in the Term Sheets referred to below to provide
          financing for (i) the actual purchase price of the Target Shares,
          (ii) fees, commissions and expenses incurred and paid by Sponsor
          or the Company in connection with the Acquisition in an aggregate
          amount not in excess of U.S. $35,000,000 and (iii) poison pill
          and golden parachute payments payable by Target in connection
          with the Acquisition and paid by Sponsor or the Company.  Sponsor
          agrees that total funds of up to U.S. $800,000,000 are required
          to consummate the Acquisition and related transactions and that
          no external debt financing will be required for such purposes
          other than the Senior Facilities. 


                    Chase is pleased to offer to commit to provide the full
          amount of the Senior Facilities, all on the terms conditions set
          forth herein, in the Term Sheets attached hereto as Exhibit A and
          Exhibit B (collectively, the "Term Sheets") and in the letter of
                                        -----------
          even date herewith addressed by Chase to Sponsor providing, among
          other things, for certain fees relating to the Senior Facilities
          (the "Fee Letter").  Subject to terms and conditions set forth
                ----------
          herein and in the Fee Letter, U.S. $200,000,000 will be made
          available to Sponsor pursuant to the terms and conditions set
          forth in Exhibit B and up to U.S. $600,000,000 will be made
          available to the Company, Target and the borrowing subsidiaries
          of Target pursuant to the terms and conditions set forth in


<PAGE>


                                        - 3 -


          Exhibit A.  Chase reserves the right to syndicate directly or
          through one or more of Chase Securities, Inc., Chase Investment
          Bank, Ltd. and Chase Manhattan Asia Limited (collectively with
          Chase, the "Chase Participants")), all or a portion of the Senior
                      ------------------
          Facilities on the same terms and conditions as are set forth
          herein and in the Term Sheets (other than with respect to rights
          and obligations which relate only to Chase) to a group of banks
          and/or other financial institutions acceptable to Chase
          (including Chase, the "Lenders") and the Sponsor.  Chase shall be
                                 -------
          relieved of its obligation to provide the Senior Facilities to
          the extent that at any time Sponsor accepts the written offers of
          Lenders other than Chase to provide a portion of the Senior
          Facilities (such acceptance not to be unreasonably withheld or
          delayed).  Chase agrees that at all times subsequent to the
          initial extension of credit under the Senior Facilities and prior
          to the date which is three days following the consummation of the
          Merger, Chase and its affiliates will hold an aggregate of not
          less than 20% of the aggregate principal amount of the Senior
          Facilities.


                    Chase has submitted this letter after reviewing certain
          historical financial statements relating to Sponsor and its
          subsidiaries and Target and its subsidiaries and certain other
          information provided to Chase by Sponsor.  Chase may terminate
          its obligations under the preceding paragraph to provide the
          Senior Facilities if (the conditions set forth in clauses (i)
          through (xi) below, collectively the "Conditions"):  (i) the
                                                ----------
          terms of the proposed Tender Offer or Merger are changed in any
          respect determined by Chase to be material; (ii) (a) any
          information with respect to Midgard Energy Company, Natomas
          Energy Company, Maxus Northwest Java, Inc. or Maxus Southeast
          Sumatra Inc., or the ability of such subsidiaries to engage in
          the transactions contemplated by Tranche 2 or Tranche 3 (as
          defined in the Term Sheets) submitted to Chase in writing proves
          to have been inaccurate, incomplete or misleading in any respect
          determined by Chase to be material with respect to each of such
          subsidiaries taken as a whole or (b) any other information, taken
          as a whole, submitted to Chase in writing proves to have been
          inaccurate, incomplete or misleading in any respect determined by
          Chase to be material, in each case, other than any such


<PAGE>


                                        - 4 -


          information which, at the time of delivery, Sponsor indicates in
          writing is inaccurate; (iii) any change occurs after September
          30, 1994, or any additional information is disclosed to or
          discovered by Chase or its counsel, which Chase deems materially
          adverse, in respect of the condition (financial or otherwise),
          business, operations, assets, nature of assets or liabilities of
          any of (a) Sponsor and its subsidiaries (taken as a whole) (which
          shall include, without limitation, the investment ratings of any
          of the Sponsor's securities being downgraded or being put on
          "credit watch" or "credit review" with negative implications by
          any nationally recognized statistical rating organization), (b)
          Target and its subsidiaries (taken as a whole) or (c) the
          intended Target borrowing subsidiaries or any of their respective
          subsidiaries (which shall include, without limitation, the
          investment ratings of the government of Indonesia being
          downgraded or being put in "credit watch " or "credit review"
          with negative implications by a nationally recognized statistical
          rating organization at any time after the consummation of the
          Merger); (iv) any of the fees payable to Chase pursuant to the
          Fee Letter are not paid when due; (v) any condition to Chase's
          obligations set forth herein or in the Term Sheets cannot be
          satisfied; (vi) (a) to the extent the Merger Agreement and Tender
          Offer are not executed in the forms of "the Andrews & Kurth Mark-
          Up 1/27/94" furnished to Chase, unless Chase has approved the
          changes from such draft or (b) the executed Merger Agreement or
          Tender Offer (or other key acquisition documents) are modified
          subsequent to the "the Andrews & Kurth Mark-Up 1/27/94" furnished
          to Chase or waived in any respect determined by Chase to be
          material, unless approved by Chase; (vii) the Tender Offer
          conditions have not been satisfied in any respect determined by
          Chase to be material without modification or waiver, unless
          approved by Chase; (viii) Chase determines that any litigation or
          other proceedings seeking to enjoin or in any way modify or
          affect the Tender Offer or the Merger has a material adverse
          effect on the Merger, the Tender Offer, the Company, the Target
          or any of their respective subsidiaries or any of the Senior
          Facilities; or (ix) any of Sponsor's or Target's existing debt,
          preferred stock documents or other written contractual
          arrangements prohibit the Acquisition or the borrowings or
          security interests under any of the Senior Facilities or


<PAGE>


                                        - 5 -


          otherwise adversely affect the consummation of the transactions
          contemplated hereby, unless the provisions of such documents or
          arrangements which prohibit the consummation of such transactions
          have been waived or modified to the satisfaction of Chase
          (Sponsor has represented to Chase that no such prohibitions exist
          with respect to Sponsor or any of its subsidiaries).  In
          addition, Chase's obligations under this letter are subject to
          the negotiation, execution and delivery of mutually satisfactory
          financing and security documentation reflecting, without
          limitation, the provisions of the Term Sheets.


                    Sponsor hereby indemnifies and holds harmless each of
          the Chase Participants and the other Lenders and each director,
          officer, employee and affiliate thereof (each, an "indemnified
                                                             -----------
          person") from and against any and all losses, claims, damages,
          ------
          liabilities (or actions or other proceedings commenced or
          threatened in respect thereof) and reasonable expenses that arise
          out of, result from or in any way relate to this letter, the Term
          Sheet or the Fee Letter, the use or intended use of the Senior
          Facilities, or in connection with the Acquisition or the other
          transactions contemplated hereby or the provision or syndication
          of the Senior Facilities, and Sponsor hereby agrees to reimburse
          each indemnified person, upon its demand, for any reasonable
          legal or other expenses incurred in connection with
          investigating, defending or participating in any such loss,

          claim, damage, liability or action or other proceeding (whether
          or not such indemnified person is a party to any action or
          proceeding out of which any such expenses arise), other than any
          of the foregoing claimed by any indemnified person to the extent
          finally determined by a court of competent jurisdiction to be
          incurred directly and primarily by reason of the gross negligence
          or willful misconduct of such indemnified person; provided,
                                                            --------
          however, Sponsor shall not be required to pay for more than one
          -------
          counsel for all indemnified parties in any single jurisdiction
          unless such indemnified parties have conflicting interests. 
          Neither any Chase Participant nor any other Lender shall be
          responsible or liable to the Sponsor, the Company, Holdings or
          any other person or entity for any consequential damages that may
          be alleged as a result of this letter or any other transaction
          referred to herein.  In addition, Sponsor hereby agrees to 


<PAGE>


                                        - 6 -


          reimburse Chase from time to time upon Chase's demand for Chase's
          reasonable out-of-pocket costs and expenses (including, without
          limitation, reasonable legal fees and expenses, appraisal fees
          and printing, reproduction, document delivery, communication,
          publicity and travel costs) incurred in connection with this
          letter and the other transactions contemplated hereby (including,
          without limitation, the syndication of the Senior Facilities and
          the preparation, review, negotiation, execution and delivery of
          this letter, the Term Sheet, the Fee Letter, the definitive
          financing agreements and the other documents relating to the
          Senior Facilities and/or the Acquisition) in accordance with a
          budget (as to legal expenses) and guidelines to be agreed upon by
          Sponsor and Chase.  Sponsor's obligations under this paragraph
          shall survive any termination of the obligations of Chase under
          this letter and shall be effective regardless of whether the
          definitive financing agreements are executed.  The foregoing
          provisions of this paragraph shall be in addition to any rights
          that any of the Chase Entities or any other indemnified person
          may have at common law or otherwise.


                    This letter is delivered to Sponsor upon the condition
          that, prior to its acceptance of this offer, neither the
          existence of this letter, the Term Sheets or the Fee Letter nor
          any of their contents shall be disclosed by it without the prior
          written consent of Chase except (a) as may be compelled to be
          disclosed in a judicial or administrative proceeding or as
          otherwise required by law, (b) in connection with any enforcement
          by Sponsor of its rights under this letter agreement, (c) on a
          confidential and "need to know" basis, to its directors,
          officers, employees, advisors and agents or (d) on a confidential
          and "need to know" basis, to the Target, its directors, officers,
          employees, advisors and agents.  If Sponsor makes or permits any
          such disclosure in violation of this paragraph, Sponsor shall be
          deemed to have accepted and agreed to this letter and the Term
          Sheets and be obligated to Chase as provided herein and therein. 
          Sponsor further agrees that after it has accepted this offer it
          will not disclose the Term Sheets, or any documents referred to
          in the Term Sheets or its contents except as permitted under
          clause (a), (b), (c) or (d) of the first sentence of this
          paragraph.  


<PAGE>


                                        - 7 -


                    In accordance with market practice, an information
          package containing relevant information relating to the Senior
          Facilities, Sponsor and Target and their respective subsidiaries,
          the Acquisition and the other transactions and entities referred
          to herein and in the Term Sheets will be provided, on a
          confidential basis, by Sponsor to potential lenders and
          participants.  Chase will be pleased to assist Sponsor in the
          preparation of this package.  Sponsor and the Company will
          cooperate with Chase in effecting the syndication of the Senior
          Facilities (including participation by officers requested by
          Chase (which may include the Chief Executive Officer and the
          Chief Financial Officer of the Sponsor) in "roadshows" or other
          meetings with potential lenders and participants).  

                    Sponsor acknowledges that the Chase Entities may be
          providing debt financing, equity capital or other services
          (including financial advisory services) to other persons or
          entities in respect of which Sponsor or its affiliates may have
          conflicting interests.  None of the Chase Entities will use
          confidential information obtained from Sponsor or its affiliates
          by virtue of the transactions contemplated by this letter or
          their other relationships with Sponsor and its affiliates in
          connection with the performance by any such Chase Entity of
          services for other companies, and nor will any Chase Entity
          furnish any such information to any person or entity other than a
          Chase Participant; provided that nothing herein shall limit the
                             --------
          disclosure of any such information (i) to the extent required by
          statute, rule, regulation or judicial process, (ii) to counsel
          for any of the Lenders or Chase, (iii) to bank examiners,
          auditors or accountants, (iv) in connection with any litigation
          to which any one or more of the Lenders or Chase is a party, or
          (vi) to any Lender (or prospective Lender) so long as such
          assignee or participant (or prospective assignee or participant)
          first executes and delivers to Chase a confidentiality agreement
          containing the provisions set forth in this sentence.  Sponsor
          also acknowledges that none of the Chase Entities have any
          obligation to use in connection with the transactions
          contemplated by this letter, or to furnish to Sponsor or any of
          its affiliates, confidential information obtained from any such
          person or entity.


<PAGE>


                                        - 8 -


                    Sponsor agrees that, after it has accepted this offer
          and so long as this commitment is in effect, it will not accept
          or solicit any offer or commitment from, or execute any agreement
          with, any other potential source of the financing for the
          Acquisition (other than the Senior Facilities), without Chase's
          prior written consent (which consent shall not be unreasonably
          withheld).  In addition, from the date of the delivery of this
          letter until the earliest of (i) August 5, 1995, (ii) the
          completion of the general syndication of the Senior Facilities
          and (iii) such date as Chase shall inform Sponsor that it will
          not provide any of the Senior Facilities, Sponsor agrees that it
          will not accept or solicit and will not permit any of its
          subsidiaries or affiliates over which it exercises control to
          accept or solicit any financing for Sponsor or any of its
          subsidiaries or affiliates other than (a) usual and customary
          bilateral lines of credit and pre-export financing incurred in
          the ordinary course of business and (b) secured export notes
          (SEN's) in an aggregate amount not to exceed U.S. $500,000,000 so
          long as in the case of the SEN's, Sponsor agrees to consult and
          work with Chase to coordinate such offering so that it will not
          interfere with the syndication of the Senior Facilities.

                    Chase shall have the right to review and approve all
          public announcements and filings made by Sponsor or its
          affiliates relating to the Acquisition or the other transactions
          contemplated hereby that refer to the Senior Facilities or to
          Chase or the other Lenders before they are made (such approval
          not to be unreasonably withheld).


                    Chase's offer set forth in this letter will terminate
          at 5:00 p.m. (New York City time) on February 28, 1995 unless
          Sponsor accepts this letter and the Fee Letter at or prior to
          that time by (a) signing and returning to Chase counterparts of
          this letter and the Fee Letter and (b) paying to Chase the fee
          required by the Fee Letter to be paid on such acceptance. 
          Chase's commitment under this letter, if accepted by Sponsor,
          will in any event terminate at 5:00 p.m. (New York City time) on
          April 5, 1995 if the initial extension of credit under the Senior
          Facilities shall not have occurred prior to such time.


<PAGE>


                                        - 9 -


                    Sponsor consents to the non-exclusive jurisdiction of
          any court of the State of New York or any United States federal
          court sitting in the Borough of Manhattan, New York City, New
          York, United States, and any appellate court from any thereof,
          and waives any immunity from the jurisdiction of such courts over
          any suit, action or proceeding that may be brought in connection
          with this letter agreement, the Term Sheets and the transactions
          contemplated hereby and thereby.  Sponsor irrevocably waives, to
          the fullest extent permitted by law, any objection to any suit,
          action or proceeding that may be brought in connection with this
          letter agreement, the Term Sheets, the Fee Letter and the
          transactions contemplated hereby and thereby in such courts
          whether on grounds of venue, residence or domicile or on the
          ground that any such suit, action or proceeding has been brought
          in an inconvenient forum.  Sponsor agrees that final judgment in
          any such suit, action or proceeding brought in such court shall
          be conclusive and binding upon Sponsor and may be enforced in any
          court to the jurisdiction of which Sponsor is subject by a suit
          upon such judgment.  Notwithstanding the foregoing, any suit,
          action or proceeding brought in connection with this letter
          agreement, the Term Sheets, the Fee Letter or the transactions
          contemplated hereby or thereby, may be instituted in any
          competent court in Argentina.


                    If for the purpose of obtaining judgment in any court
          it is necessary to convert a sum due hereunder to Chase, any
          Lender or any indemnified person in U.S. Dollars into another
          currency the rate of exchange used shall be that at which in
          accordance with normal banking procedures such party could
          purchase U.S. Dollars with such other currency in New York City
          on the business day in New York next preceding the day on which
          final judgment is rendered.  The obligation of Sponsor in respect
          of any sum payable hereunder by it to Chase, any Lender or any
          indemnified person shall, notwithstanding any judgment in a
          currency (the "Judgment Currency") other than U.S. Dollars, be
                         -----------------
          discharged only to the extent that on the business day in New
          York next following receipt by such payee of any sum adjudged to
          be so due in the Judgment Currency such payee may in accordance
          with normal banking procedures purchase and transfer to New York
          U.S. Dollars with the Judgment Currency; if the amount of U.S. 


<PAGE>


                                        - 10 -


          Dollars which could have been so purchased and transferred is
          less than the sum originally due to Chase, any Lender or any
          indemnified person, as the case may be, in U.S. Dollars, Sponsor
          agrees, as a separate obligation and notwithstanding any such
          judgment, to indemnify such payee against the deficiency.


                    To the extent that Sponsor has or hereafter may acquire
          any immunity from jurisdiction of any court or from any legal
          process, Sponsor hereby waives such immunity and agrees not to
          assert, by way of motion, as a defense or otherwise, in any suit,
          action or proceeding the defense of sovereign immunity or any
          claim that it is not personally subject to the jurisdiction of
          the above-named courts by reason of sovereign immunity or
          otherwise, or that it is immune from any legal process (whether
          through service or notice, attachment prior to judgment,
          attachment in aid of execution, execution or otherwise) with
          respect to itself or its property or from attachment either prior
          to judgment or in aid of execution by reason of sovereign
          immunity.


                    This letter and the Fee Letter may be executed in any
          number of counterparts, each of which shall be an original and
          all of which, when taken together, shall constitute one
          agreement, and this letter, the Term Sheet may not be assigned by
          Sponsor without the prior written consent of Chase and may not be
          amended or any provision hereof or thereof waived or modified
          except by an instrument in writing signed by Chase and Sponsor. 
          No person or entity (including, without limitation, Target and
          its affiliates) other than the parties hereto shall have any
          rights under or be entitled to rely upon this letter.  This
          letter, the Fee Letter and the Term Sheets shall be governed by
          and construed in accordance with the law of the State of New
          York.


<PAGE>


                                        - 11 -


                    We look forward to working with Sponsor to complete
          this transaction.

                                        THE CHASE MANHATTAN BANK
                                          (NATIONAL ASSOCIATION)


                                        By____________________________
                                          Title:
          ACCEPTED AND AGREED:

          YPF SOCIEDAD ANONIMA


          By____________________________
            Title:
          Date:_________________________



                                                                Exhibit C


                                                                           
          =================================================================


                                 AGREEMENT OF MERGER


                                        Among


                                 YPF Sociedad Anonima


                                YPF Acquisition Corp.


                                         and


                               Maxus Energy Corporation


                                  February 28, 1995


                                                                           
          =================================================================


<PAGE>


                                  TABLE OF CONTENTS
                                  -----------------

                            (Not a part of the Agreement)

                                                                       Page
                                                                       ----


             I.  THE TENDER OFFER . . . . . . . . . . . . . . . . . .    1
                 1.1.  The Offer  . . . . . . . . . . . . . . . . . .    1
                 1.2.  Company Action . . . . . . . . . . . . . . . .    4
                 1.3.  Stockholder Lists  . . . . . . . . . . . . . .    6
                 1.4.  Board of Directors of the Company  . . . . . .    6

            II.  THE MERGER . . . . . . . . . . . . . . . . . . . . .    8
                       2.1.1.  Merger . . . . . . . . . . . . . . . .    8
                       2.1.2.  Effective Time . . . . . . . . . . . .    8
                       2.1.3.  Effect of Merger . . . . . . . . . . .    9
                       2.1.4.  Conversion of Shares of Common Stock .    9
                 2.2.  Stockholders' Meeting of the Company . . . . .   11
                 2.3.  Consummation of the Merger . . . . . . . . . .   11
                 2.4.  Payment for Shares of Common Stock . . . . . .   12
                 2.5.  Closing of the Company's Transfer Books  . . .   14
                 2.6.  The Company Stock Options and Related Matters    14

           III.  REPRESENTATIONS AND WARRANTIES OF PARENT AND PURCHASER 
                                                                        15
                 3.1.  Corporate Organization . . . . . . . . . . . .   15
                 3.2.  Authority  . . . . . . . . . . . . . . . . . .   15
                 3.3.  Offer Documents  . . . . . . . . . . . . . . .   16
                 3.4.  Proxy Statement  . . . . . . . . . . . . . . .   17
                 3.5.  Fees . . . . . . . . . . . . . . . . . . . . .   17
                 3.6.  Consents and Approvals; No Violation . . . . .   17
                 3.7.  Financing  . . . . . . . . . . . . . . . . . .   19
                 3.8.  Operations of the Company Following the Merger   19

            IV.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY  . . .   20
                 4.1.  Corporate Organization . . . . . . . . . . . .   20
                 4.2.  Capitalization . . . . . . . . . . . . . . . .   21
                 4.3.  Authority  . . . . . . . . . . . . . . . . . .   22
                 4.4.  Consents and Approvals; No Violation . . . . .   23
                 4.5.  Commission Filings . . . . . . . . . . . . . .   24
                 4.6.  Absence of Certain Changes . . . . . . . . . .   25
                 4.7.  Litigation . . . . . . . . . . . . . . . . . .   26
                 4.8.  Compliance with Applicable Laws  . . . . . . .   27
                 4.9.  Fees . . . . . . . . . . . . . . . . . . . . .   28
                 4.10. Offer Documents  . . . . . . . . . . . . . . .   28
                 4.11. Schedule 14D-9 . . . . . . . . . . . . . . . .   28
                 4.12. Proxy Statement  . . . . . . . . . . . . . . .   29
                 4.13. Rights . . . . . . . . . . . . . . . . . . . .   29
                 4.14. Certain Actions. . . . . . . . . . . . . . . .   30
                 4.15. Subsidiaries . . . . . . . . . . . . . . . . .   30
                 4.16. No Default . . . . . . . . . . . . . . . . . .   32


                                         (i)


<PAGE>


                                                                       Page
                                                                       ----


                 4.17. Taxes  . . . . . . . . . . . . . . . . . . . .   32
                 4.18. Insurance  . . . . . . . . . . . . . . . . . .   35
                 4.19. Benefit Plans  . . . . . . . . . . . . . . . .   36
                 4.20. Labor Matters  . . . . . . . . . . . . . . . .   38
                 4.21. Certain Environmental Matters  . . . . . . . .   40

             V.  COVENANTS  . . . . . . . . . . . . . . . . . . . . .   40
                 5.1.  Acquisition Proposals  . . . . . . . . . . . .   40
                 5.2.  Interim Operations . . . . . . . . . . . . . .   41
                       5.2.1.  Conduct of Business  . . . . . . . . .   41
                       5.2.2.  Certificate and By-Laws  . . . . . . .   42
                       5.2.3.  Capital Stock  . . . . . . . . . . . .   42
                       5.2.4.  Dividends  . . . . . . . . . . . . . .   43
                       5.2.5.  Debt . . . . . . . . . . . . . . . . .   43
                 5.3.  Employee Plans, Compensation, Etc. . . . . . .   44
                 5.4.  Access and Information . . . . . . . . . . . .   46
                 5.5.  Certain Filings, Consents and Arrangements . .   48
                 5.6.  State Takeover Statutes  . . . . . . . . . . .   48
                 5.7.  Proxy Statement  . . . . . . . . . . . . . . .   48
                 5.8.  Indemnification and Insurance  . . . . . . . .   49
                 5.9.  Additional Agreements  . . . . . . . . . . . .   50
                 5.10. Compliance with Antitrust Laws . . . . . . . .   52
                 5.11. Publicity  . . . . . . . . . . . . . . . . . .   52
                 5.12. Notice of Actions and Proceedings  . . . . . .   53
                 5.13. Notification of Certain Other Matters  . . . .   53
                 5.14. Listing of Preferred Stock . . . . . . . . . .   54
                 5.15. Certain Obligations of Parent  . . . . . . . .   54

            VI.  CONDITIONS . . . . . . . . . . . . . . . . . . . . .   55
                 6.1.  Conditions . . . . . . . . . . . . . . . . . .   55
                       6.1.1.  Stockholder Approval . . . . . . . . .   55
                       6.1.2.  Purchase of Shares of Voting Stock . .   55
                       6.1.3.  Injunctions; Illegality  . . . . . . .   55
                       6.1.4.  HSR Act  . . . . . . . . . . . . . . .   56
                 6.2.  Parent Obligations.  . . . . . . . . . . . . .   56

           VII.  MISCELLANEOUS  . . . . . . . . . . . . . . . . . . .   57
                 7.1.  Termination  . . . . . . . . . . . . . . . . .   57
                 7.2.  Non-Survival of Representations, Warranties
                       and Agreements . . . . . . . . . . . . . . . .   60
                 7.3.  Waiver and Amendment . . . . . . . . . . . . .   60
                 7.4.  Entire Agreement . . . . . . . . . . . . . . .   61
                 7.5.  Applicable Law . . . . . . . . . . . . . . . .   61
                 7.6.  Interpretation . . . . . . . . . . . . . . . .   61
                 7.7.  Notices  . . . . . . . . . . . . . . . . . . .   61
                 7.8.  Counterparts . . . . . . . . . . . . . . . . .   63
                 7.9.  Parties in Interest; Assignment  . . . . . . .   63
                 7.10. Expenses; Termination Fee  . . . . . . . . . .   64
                 7.11. Obligation of Parent . . . . . . . . . . . . .   64
                 7.12. Enforcement of the Agreement . . . . . . . . .   64


                                        (ii)


<PAGE>


                                                                       Page
                                                                       ----


                 7.13. Severability . . . . . . . . . . . . . . . . .   65
                 7.14. Consent to Jurisdiction and Service of Process   65


                                        (iii)


<PAGE>


                                TABLE OF DEFINED TERMS
                                ----------------------

                            (Not a part of the Agreement)

          Term                                                      Section
          ----                                                      -------

          Agreement . . . . . . . . . . . . . . . . . . . . . . .  Preamble
          Balance Sheet . . . . . . . . . . . . . . . . . . . . . . 4.19(b)
          Benefits Agreements . . . . . . . . . . . . . . . . . . .  5.3(c)
          Benefit Plans . . . . . . . . . . . . . . . . . . . . . . .  4.19
          Certificate of Merger . . . . . . . . . . . . . . . . . . . 2.1.2
          Certificate . . . . . . . . . . . . . . . . . . . . . . . . . 1.2
          Closing   . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3
          Code  . . . . . . . . . . . . . . . . . . . . . . . . . . 4.17(a)
          Commission  . . . . . . . . . . . . . . . . . . . . . . . . . 1.2
          Commitment  . . . . . . . . . . . . . . . . . . . . . . . . . 3.7
          Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . 1.1
          Company . . . . . . . . . . . . . . . . . . . . . . . .  Preamble
          Competing Transaction   . . . . . . . . . . . . . . . . . . . 7.1
          Confidentiality Agreement . . . . . . . . . . . . . . . . . . 1.1
          Constituent Corporations  . . . . . . . . . . . . . . . . . 2.1.2
          Continuing Directors  . . . . . . . . . . . . . . . . . . . . 7.1
          Controlled Group  . . . . . . . . . . . . . . . . . . . . 4.19(e)
          CSFB  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2
          Current Premium . . . . . . . . . . . . . . . . . . . . . . . 5.8
          D&O Insurance . . . . . . . . . . . . . . . . . . . . . . . . 5.8
          DGCL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2
          Director Plan . . . . . . . . . . . . . . . . . . . . . . . . 4.2
          Domestic Taxes  . . . . . . . . . . . . . . . . . . . . . 4.17(a)
          Effective Time  . . . . . . . . . . . . . . . . . . . . . . 2.1.2
          ERISA . . . . . . . . . . . . . . . . . . . . . . . . . . 4.19(a)
          Exchange Act  . . . . . . . . . . . . . . . . . . . . . . . . 1.1
          $4.00 Preferred Stock . . . . . . . . . . . . . . . . . . . . 1.1
          401(k) Plan . . . . . . . . . . . . . . . . . . . . . . . . . 4.2
          Fully Diluted . . . . . . . . . . . . . . . . . . . . . . . . 1.1
          GAAP  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5
          Governmental Entity . . . . . . . . . . . . . . . . . . . . . 3.6
          HSR Act . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.6
          Indemnified Party . . . . . . . . . . . . . . . . . . . . . . 5.8
          Merger  . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1
          Merger Price  . . . . . . . . . . . . . . . . . . . . . . . 2.1.4
          Minimum Share Condition . . . . . . . . . . . . . . . . . . . 1.1
          $9.75 Preferred Stock . . . . . . . . . . . . . . . . . . . 2.1.4
          Offer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1
          Offer Documents . . . . . . . . . . . . . . . . . . . . . . . 3.3
          Option Plans  . . . . . . . . . . . . . . . . . . . . . . . . 2.6
          Options . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.6
          Options and Converts  . . . . . . . . . . . . . . . . . . . . 1.1
          Parent  . . . . . . . . . . . . . . . . . . . . . . . .  Preamble
          Paying Agent  . . . . . . . . . . . . . . . . . . . . . . . . 2.4
          PBGC  . . . . . . . . . . . . . . . . . . . . . . . . . . 4.19(e)
          Person  . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6
          Preferred Stock . . . . . . . . . . . . . . . . . . . . . . 2.1.4
          Proxy Statement . . . . . . . . . . . . . . . . . . . . . . . 3.4
          Purchaser . . . . . . . . . . . . . . . . . . . . . . .  Preamble


                                         (iv)


<PAGE>


          Term                                                      Section
          ----                                                      -------


          Redemption  . . . . . . . . . . . . . . . . . . . . . . . . . 1.1
          Rights  . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1
          Rights Agreement  . . . . . . . . . . . . . . . . . . . . . . 1.1
          Schedule 14D-1  . . . . . . . . . . . . . . . . . . . . . . . 3.3
          Schedule 14D-9  . . . . . . . . . . . . . . . . . . . . . . . 1.2
          Securities Act  . . . . . . . . . . . . . . . . . . . . . . . 4.5
          SEC Documents . . . . . . . . . . . . . . . . . . . . . . . . 4.5
          Senior Executives . . . . . . . . . . . . . . . . . . . . . . 4.6
          Significant Subsidiary  . . . . . . . . . . . . . . . . . .  4.16
          Stock Certificate . . . . . . . . . . . . . . . . . . . . . . 2.4
          Stock Plans . . . . . . . . . . . . . . . . . . . . . . .  5.3(b)
          Subsidiary  . . . . . . . . . . . . . . . . . . . . . . . . . 7.6
          Surviving Corporation . . . . . . . . . . . . . . . . . . . 2.1.3
          Tax . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.17(b)
          Tax Affiliates  . . . . . . . . . . . . . . . . . . . . . 4.17(a)
          Tax Return  . . . . . . . . . . . . . . . . . . . . . . . 4.17(b)
          Transmittal Letter  . . . . . . . . . . . . . . . . . . . . . 2.4
          $2.50 Preferred Stock . . . . . . . . . . . . . . . . . . . 2.1.4
          Voting Stock  . . . . . . . . . . . . . . . . . . . . . . . . 1.1


                                         (v)


<PAGE>


                                 AGREEMENT OF MERGER
                                 -------------------


               AGREEMENT OF MERGER, dated as of February 28, 1995 (the

          "Agreement"), among YPF Sociedad Anonima, a sociedad anonima

          organized under the laws of the Republic of Argentina ("Parent"),

          YPF Acquisition Corp., a Delaware corporation and a wholly owned

          subsidiary of Parent ("Purchaser"), and Maxus Energy Corporation,

          a Delaware corporation (the "Company").

               Parent, Purchaser and the Company hereby agree as follows:

                                 I.  THE TENDER OFFER
                                     ----------------

               1.1.  The Offer.  Provided that this Agreement has not been
                     ---------

          terminated in accordance with Section 7.1 hereof and none of the

          events set forth in Exhibit A hereto has occurred or exists,

          Purchaser will, and Parent will cause Purchaser to, commence

          (within the meaning of Rule 14d-2(a) of the Securities Exchange

          Act of 1934, as amended (the "Exchange Act")) as promptly as

          practicable after the date hereof, but in any event not later

          than March 7, 1995, a tender offer for all outstanding shares of

          Common Stock, par value $1.00 per share ("Common Stock"), of the

          Company at a price of $5.50 per share, net to the seller in cash. 

          (Such tender offer, as it may be amended from time to time

          pursuant to this Agreement, is referred to herein as the

          "Offer.")  The Offer will be subject only to the conditions set

          forth in Exhibit A, including without limitation the conditions

          that (a) the Board of Directors of the Company, within the time

          provided in the Rights Agreement, dated as of September 8, 1988,

          between the Company and AmeriTrust Company National Association


<PAGE>


          as rights agent (the "Rights Agreement") shall have taken the

          steps necessary to redeem the preferred stock purchase rights

          (the "Rights") issued pursuant to the Rights Agreement so that

          the Rights issued pursuant to the Rights Agreement will not

          become exercisable as a result of the consummation of the

          transactions contemplated in this Agreement (such action, the

          "Redemption") and (b) the number of shares of Common Stock being

          validly tendered and not withdrawn prior to the expiration date

          provided in the Offer which, when added to the shares of Common

          Stock and $4.00 Cumulative Convertible Preferred Stock, par value

          $1.00 per share, of the Company ("$4.00 Preferred Stock" and,

          together with the Common Stock, "Voting Stock") beneficially

          owned by Parent and Purchaser, represent not less than a majority

          of the shares of Voting Stock outstanding on a Fully Diluted (as

          hereinafter defined) basis (the "Minimum Share Condition").  For

          purposes of this Agreement, "Fully Diluted" means the number of

          shares of Voting Stock outstanding as of the close of business on

          February 23, 1995, increased by the number of shares of Voting

          Stock (i) issued between such date and the expiration date of the

          Offer and (ii) issuable pursuant to the exercise of rights (other

          than the Rights) to purchase Voting Stock or upon conversion or

          exchange of other securities, including without limitation the

          rights and securities listed on Schedule 1.1 (collectively, the

          "Options and Converts"), reduced, however, by the number of

          employee stock options and other rights to be cancelled as

          contemplated by Section 2.6.  Any such condition other than the

          Minimum Share Condition may be waived by Purchaser in its sole


                                          2


<PAGE>


          discretion.  Purchaser may, at any time, transfer or assign to

          one or more corporations directly or indirectly wholly owned by

          Parent the right to purchase all or any portion of the shares of

          Common Stock tendered pursuant to the Offer, but any such

          transfer or assignment will not relieve Purchaser of its

          obligations under the Offer or prejudice the rights of tendering

          stockholders to receive payment for shares of Common Stock

          validly tendered and accepted for payment.  Purchaser will accept

          for payment all shares of Common Stock validly tendered pursuant

          to the Offer and not withdrawn as soon as legally permissible,

          and pay for all such shares of Common Stock as promptly as

          practicable thereafter, in each case upon the terms and subject

          to the conditions of the Offer.  Purchaser reserves the right to

          increase the price per share of Common Stock payable in the Offer

          or otherwise to amend the Offer; provided, however, that no such

          amendment may be made that decreases the price per share of

          Common Stock payable pursuant to the Offer, reduces the minimum

          number of shares of Common Stock to be purchased in the Offer,

          imposes additional conditions to the Offer or makes any other

          change in the terms and conditions of the Offer that is

          materially adverse to the holders of shares of Common Stock.  If

          the Agreement is terminated pursuant to Section 7.1 hereof,

          (A) Parent and Purchaser will not, and will cause their

          subsidiaries and affiliates controlled by them not to, acquire or

          offer to acquire or request permission to acquire or offer to

          acquire (either directly or pursuant to a waiver of this or any

          other covenant) shares of Voting Stock otherwise than pursuant to


                                          3


<PAGE>


          the Offer or the Merger (as defined in Section 2.1.1 hereof) for

          a period of not less than 24 months after termination of this

          Agreement without the prior written approval of the Board of

          Directors of the Company and (B) the provisions of the

          confidentiality agreement previously entered into (the

          "Confidentiality Agreement") between the Company and Parent (or

          one of its affiliates) will continue to apply.

               1.2.  Company Action.  The Company consents to the Offer. 
                     --------------

          As soon as practicable on the date of commencement of the Offer,

          the Company will file with the Securities and Exchange Commission

          (the "Commission") and mail to the holders of shares of Common

          Stock a Solicitation/Recommendation Statement on Schedule 14D-9

          pursuant to the Exchange Act (the "Schedule 14D-9").  The

          Schedule 14D-9 will set forth, and the Company hereby represents,

          that the Board of Directors of the Company has at a meeting duly

          called and held and at which a quorum was present and acting

          throughout, by the requisite vote of all directors present,

          (a) determined, based in part on the advice of CS First Boston

          Corporation ("CSFB") described in the sixth sentence of this

          Section 1.2, the Company's financial advisor in connection with

          the Offer and the Merger, that the Offer and the Merger are in

          the best interests of the Company and its stockholders,

          (b) approved the Offer, this Agreement and the Merger, and

          determined that such approval satisfies the requirements of

          Section 203(a)(1) of the General Corporation Law of the State of

          Delaware (the "DGCL") and, as a result, renders inapplicable to

          the Offer, the Merger and this Agreement the other provisions of 


                                          4


<PAGE>


          Section 203(a) of the DGCL, (c) subject to the fiduciary duties

          of the Board of Directors, recommended acceptance of the Offer

          and adoption of this Agreement by the holders of shares of Common

          Stock, (d) taken all such action as may be required by law and

          the Rights Agreement to redeem the Rights, and (e) taken all such

          action as may be required by law and the Company's Restated

          Certificate of Incorporation (the "Certificate") so that Sections

          1 and 2 of Article Ninth of the Certificate are not applicable to

          the transactions contemplated in this Agreement and, as a result,

          the requirements of Sections 1 and 2 of Article Ninth of the

          Certificate will not apply to the Offer, the Merger and the

          transactions with Parent and Purchaser contemplated in this

          Agreement.  The Company will provide Purchaser's counsel a

          reasonable opportunity to review and comment on the Schedule

          14D-9 prior to its being filed with the Commission.  The Company

          will provide Purchaser's counsel a copy of any written comments

          or a summary of telephonic notification of any verbal comments

          the Company or its counsel may receive from the Commission or its

          Staff with respect to the Schedule 14D-9 promptly after receipt

          of such comments and provide Purchaser's counsel with a copy of

          any written responses and a summary of any such verbal responses. 

          The Company further represents and warrants that CSFB has advised

          the Board of Directors of the Company that, in the opinion of

          CSFB as of the date hereof, the consideration to be received by

          the existing holders of shares of Common Stock pursuant to the

          Offer and the Merger is fair to such stockholders from a

          financial point of view.  The Company will, and the Board of 


                                          5


<PAGE>


          Directors of the Company has resolved to, take all actions

          reasonably requested by Purchaser necessary to exempt the Offer

          and the Merger from the provisions of any applicable takeover,

          business combination or control share acquisition law or

          regulation adopted by any State of the United States of America.

               1.3.  Stockholder Lists.  The Company will promptly furnish
                     -----------------

          Purchaser a list of the holders of Common Stock and mailing

          labels containing the names and addresses of all record holders

          relating to Common Stock and lists of securities positions of

          shares of Common Stock held in stock depositories, each as of a

          recent date, and will promptly furnish Purchaser with such

          additional information, including updated lists of stockholders

          of the Company, mailing labels and lists of securities positions,

          and such other assistance as Purchaser or its agents may

          reasonably request in connection with the Offer.  Subject to the

          requirements of law, and except for such steps as are necessary

          to disseminate the Offer Documents (as defined in Section 3.3

          hereof), Parent and Purchaser will hold in confidence the

          information contained in any of such labels and lists and the

          additional information referred to in the preceding sentence,

          will use such information only in connection with the Offer and,

          if this Agreement is terminated, will upon request deliver to the

          Company all such written information and any copies or extracts

          therefrom in its possession or under its control.

               1.4.  Board of Directors of the Company.  Upon Purchaser's
                     ---------------------------------

          acquisition of a majority of the outstanding shares of Voting

          Stock pursuant to the Offer, and from time to time thereafter so 


                                          6


<PAGE>


          long as Parent and/or any of its direct or indirect wholly owned

          subsidiaries (including Purchaser) owns a majority of the

          outstanding shares of Voting Stock, Parent will be entitled,

          subject to compliance with applicable law, the Certificate and

          the provisions of the next sentence, to designate at its option

          up to that number of directors, rounded up to the nearest whole

          number, of the Company's Board of Directors as will make the

          percentage of the Company's directors designated by Parent equal

          to the percentage of outstanding shares of Voting Stock held by

          Parent and any of its direct or indirect wholly owned

          subsidiaries (including Purchaser), including shares of Common

          Stock accepted for payment pursuant to the Offer.  The Company

          will, upon the request of Parent, promptly increase the size of

          its Board of Directors and/or use its reasonable best efforts to

          secure the resignation of such number of directors as is

          necessary to enable Parent's designees to be elected to the

          Company's Board of Directors and will use its reasonable best

          efforts to cause Parent's designees to be so elected, subject in

          all cases to Section 14(f) of the Exchange Act, it being

          understood that the Company will have no obligation to comply

          with Section 14(f) of the Exchange Act until after the Offer is

          completed in accordance with the terms hereof and that the

          Company agrees to comply with such Section of the Exchange Act as

          promptly as practicable thereafter, provided that, prior to the

          Effective Time (as defined in Section 2.1.2 hereof), the Company

          will use its reasonable best efforts to assure that the Company's

          Board of Directors always has (at its election) at least three 


                                          7


<PAGE>


          members who are directors of the Company as of the date hereof. 

          At such times, the Company will use its reasonable best efforts,

          subject to any limitations imposed by applicable laws or rules of

          the New York Stock Exchange, to cause persons designated by

          Parent to constitute the same percentage as such persons

          represent on the Company's Board of Directors of (a) each

          committee of the Board of Directors of the Company, (b) each

          board of directors or board of management of each subsidiary of

          the Company, and (c) each committee of each such board.

                                   II.  THE MERGER
                                        ----------

                    2.1.1.  Merger.  Subject to the terms and conditions
                            ------

          hereof, (a) Purchaser will be merged with and into the Company

          and the separate corporate existence of Purchaser will thereupon

          cease (the "Merger") in accordance with the applicable provisions

          of the DGCL and (b) each of the Company and Parent will use its

          reasonable best efforts to cause the Merger to be consummated as

          soon as practicable following the expiration of the Offer.

                    2.1.2.  Effective Time.  As soon as practicable
                            --------------

          following fulfillment or waiver of the conditions specified in

          Article VI hereof, and provided that this Agreement has not been

          terminated or abandoned pursuant to Section 7.1 hereof, the

          Company and Purchaser (the "Constituent Corporations") will cause

          a Certificate of Merger (the "Certificate of Merger") to be filed

          with the Secretary of State of the State of Delaware as provided

          in Section 251 of the DGCL.  The Merger will become effective on

          the date on which the Certificate of Merger has been filed with 


                                          8


<PAGE>


          the Secretary of State of the State of Delaware (the "Effective

          Time").

                    2.1.3.  Effect of Merger.  The Company will be the
                            ----------------

          surviving corporation in the Merger (sometimes hereinafter

          referred to as the "Surviving Corporation") and will continue to

          be governed by the laws of the State of Delaware, and the

          separate corporate existence of the Company and all of its

          rights, privileges, powers and franchises of a public as well as

          of a private nature, and being subject to all of the

          restrictions, disabilities and duties as a corporation organized

          under the DGCL, will continue unaffected by the Merger.  The

          Merger will have the effects specified in the DGCL.  The

          Certificate and the By-Laws of the Company in effect at the

          Effective Time will be the Certificate of Incorporation and

          By-Laws of the Surviving Corporation until duly amended in

          accordance with their terms and the DGCL.  The directors of

          Purchaser immediately prior to the Effective Time will be the

          directors of the Surviving Corporation, and the officers of the

          Company immediately prior to the Effective Time will be the

          officers of the Surviving Corporation, from and after the

          Effective Time, until their successors have been duly elected or

          appointed and qualified or until their earlier death, resignation

          or removal in accordance with the terms of Surviving

          Corporation's Certificate of Incorporation and By-Laws and the

          DGCL.

                    2.1.4.  Conversion of Shares of Common Stock.  At the
                            ------------------------------------

          Effective Time, (a) each then-outstanding share of Common Stock 


                                          9


<PAGE>


          not owned by Parent, Purchaser or any other direct or indirect

          subsidiary of Parent (other than those shares of Common Stock

          held in the treasury of the Company and shares of Common Stock

          held by stockholders who perfect their appraisal rights under the

          DGCL) will be cancelled and retired and be converted into a right

          to receive in cash an amount per share of Common Stock equal to

          the highest price per share paid for a share of such stock by

          Purchaser pursuant to the Offer (the "Merger Price"), without

          interest thereon, (b) each then-outstanding share of Common Stock

          owned by Parent, Purchaser or any other direct or indirect

          subsidiary of Parent will be cancelled and retired, and no

          payment will be made with respect thereto, (c) each share of

          Common Stock issued and held in the Company's treasury will be

          cancelled and retired, and no payment will be made with respect

          thereto, (d) each outstanding share of common stock of Purchaser

          will, by virtue of the Merger and without any action on the part

          of the holder thereof, be converted into and become one share of

          common stock of the Surviving Corporation, and (e) each

          outstanding share of $4.00 Preferred Stock, $9.75 Cumulative

          Convertible Preferred Stock, par value $1.00 per share ("$9.75

          Preferred Stock"), and $2.50 Cumulative Preferred Stock, par

          value $1.00 per share ("$2.50 Preferred Stock"), of the Company

          (collectively, the "Preferred Stock") will remain outstanding and

          have, as to the Surviving Corporation, the identical powers,

          preferences, rights, qualifications, limitations and restrictions

          as such shares of Preferred Stock presently have, except as

          agreed to by the holder of $9.75 Preferred Stock.


                                          10


<PAGE>


               2.2.  Stockholders' Meeting of the Company.  The Company
                     ------------------------------------

          will take all action necessary in accordance with applicable law

          and the Certificate and its By-Laws to convene a meeting of its

          stockholders as promptly as reasonably practicable following the

          date hereof to consider and vote upon the adoption of this

          Agreement, if such stockholder approval is required by applicable

          law; provided, however, that nothing herein will affect the right

          of Purchaser to take action by written consent in lieu of a

          meeting or otherwise to the extent permitted by applicable law. 

          At any such meeting, all shares of Voting Stock then owned by

          Parent, Purchaser or any other direct or indirect subsidiary of

          Parent will be voted in favor of adoption of this Agreement. 

          Subject to its fiduciary duties under applicable law, the Board

          of Directors of the Company will recommend that the Company's

          stockholders approve adoption of this Agreement if such

          stockholder approval is required.

               2.3.  Consummation of the Merger.  The closing of the Merger
                     --------------------------

          (the "Closing") will take place (a) at the principal executive

          offices of the Company as promptly as practicable after the later

          of (i) the business day of (and immediately following) the

          receipt of approval of adoption of this Agreement by the

          Company's stockholders if such approval is required, or as soon

          as practicable after completion of the Offer if such approval by

          stockholders is not required, and (ii) the day on which the last

          of the conditions set forth in Article VI hereof is satisfied or

          duly waived or (b) at such other time and place and on such other

          date as Purchaser and the Company may agree.


                                          11


<PAGE>


               2.4.  Payment for Shares of Common Stock.  Purchaser will
                     ----------------------------------

          authorize the depositary for the Offer (or one or more commercial

          banks organized under the laws of the United States or any state

          thereof with capital, surplus and undivided profits of at least

          $100,000,000) to act as Paying Agent hereunder with respect to

          the Merger (the "Paying Agent").  Each holder (other than Parent,

          Purchaser or any subsidiary of Parent) of a certificate or

          certificates which prior to the Effective Time represented shares

          of Common Stock will be entitled to receive, upon surrender to

          the Paying Agent of such certificate or certificates for

          cancellation and subject to any required withholding of taxes,

          the aggregate amount of cash into which the shares of Common

          Stock previously represented by such certificate or certificates

          shall have been converted in the Merger.  On or before the

          Effective Time, Purchaser will make available to the Paying Agent

          sufficient funds to make all payments pursuant to the preceding

          sentence.  Pending payment of such funds to the holders of shares

          of Common Stock, such funds shall be held and invested by the

          Paying Agent as Parent directs.  Any net profit resulting from,

          or interest or income produced by, such investments will be

          payable to the Surviving Corporation or Parent, as Parent

          directs.  Parent will promptly replace any monies lost through

          any investment made pursuant to this Section 2.4.  Until

          surrendered to the Paying Agent, each certificate which

          immediately prior to the Effective Time represented outstanding

          shares of Common Stock (other than shares of Common Stock owned

          by Parent, Purchaser or any other direct or indirect subsidiary 


                                          12


<PAGE>


          of Parent and shares of Common Stock held by stockholders who

          perfect their appraisal rights under the DGCL) (a "Stock

          Certificate") will be deemed for all corporate purposes to

          evidence only the right to receive upon such surrender the

          aggregate amount of cash into which the shares of Common Stock

          represented thereby will have been converted, subject to any

          required withholding of taxes.  No interest will be paid on the

          cash payable upon the surrender of the Stock Certificate or Stock

          Certificates.  Any cash delivered or made available to the Paying

          Agent pursuant to this Section 2.4 and not exchanged for Stock

          Certificates within three months after the Effective Time will be

          returned by the Paying Agent to the Surviving Corporation which

          thereafter will act as Paying Agent, subject to the rights of

          holders of unsurrendered Stock Certificates under this Article

          II, and any former stockholders of the Company who have not

          theretofore complied with the instructions for exchanging their

          Stock Certificates will thereafter look only to the Surviving

          Corporation for payment of their claim for the consideration set

          forth in Section 2.1, without any interest thereon, but will have

          no greater rights against the Surviving Corporation (or either

          Constituent Corporation) than may be accorded to general

          creditors thereof under applicable law.  Notwithstanding the

          foregoing, neither the Paying Agent nor any party hereto will be

          liable to a holder of shares of Common Stock for any cash or

          interest thereon delivered to a public official pursuant to

          applicable abandoned property laws.  Promptly after the Effective

          Time, the Paying Agent will mail to each record holder of Stock 


                                          13


<PAGE>


          Certificates a form of letter of transmittal (the "Transmittal

          Letter") and instructions for use thereof in surrendering such

          Stock Certificates which will specify that delivery will be

          effected and risk of loss and title to the Stock Certificates

          will pass to the Paying Agent only upon proper delivery of the

          Stock Certificates to the Paying Agent in accordance with the

          terms of delivery specified in the Transmittal Letter and

          instructions for use thereof in surrendering such Stock

          Certificates and receiving the applicable Merger Price for each

          share of Common Stock previously represented by such Stock

          Certificates.  From and after the Effective Time, holders of

          Stock Certificates immediately prior to the Merger will have no

          right to vote or to receive any dividends or other distributions

          with respect to any shares of Common Stock which were theretofore

          represented by such Stock Certificates, other than any dividends

          or other distributions payable to holders of record as of a date

          prior to the Effective Time, and will have no other rights other

          than as provided herein or by law.  

               2.5.  Closing of the Company's Transfer Books.  At the
                     ---------------------------------------

          Effective Time, the stock transfer books of the Company will be

          closed with respect to Common Stock and no transfer of shares of

          Common Stock will thereafter be made.  If, after the Effective

          Time, Stock Certificates are presented to the Surviving

          Corporation, they will be cancelled, retired and exchanged for

          cash as provided in Section 2.4 hereof.

               2.6.  The Company Stock Options and Related Matters.  The
                     ---------------------------------------------

          Company will cooperate with Parent and Purchaser in an effort to 


                                          14


<PAGE>


          obtain the surrender of all options to purchase shares of Common

          Stock and other rights (collectively, "Options") granted pursuant

          to the 1992 Director Stock Option Plan, the 1992 Long-Term

          Incentive Plan, the 1986 Long-Term Incentive Plan, the 1980

          Long-Term Incentive Plan or any other plans in effect as of the

          date hereof (collectively, the "Option Plans") in accordance with

          the provisions of Schedule 2.6.  Effective immediately prior to

          the Effective Time, the restrictions on all shares of restricted

          Common Stock identified in Schedule 2.6 will lapse without

          further action.

             III.  REPRESENTATIONS AND WARRANTIES OF PARENT AND PURCHASER
                   ------------------------------------------------------

               Parent and Purchaser hereby jointly and severally represent

          and warrant to the Company that:

               3.1.  Corporate Organization.  Each of Parent and Purchaser
                     ----------------------

          is a corporation duly organized, validly existing and in good

          standing under the laws of its state or other jurisdiction of

          incorporation and has all requisite corporate power and authority

          to own, lease and operate its properties and assets and to carry

          on its business as it is now being conducted, except where the

          failure to have such power or authority would not individually or

          in the aggregate have a material adverse effect on the financial

          condition, properties, business or results of operations of

          Parent and Purchaser, taken as a whole.  Parent beneficially owns

          all of the outstanding capital stock of Purchaser.

               3.2.  Authority.  Each of Parent and Purchaser has the
                     ---------

          requisite corporate power and authority to execute and deliver

          this Agreement and to consummate the transactions contemplated 


                                          15


<PAGE>


          hereby.  The execution and delivery of this Agreement and the

          consummation of the transactions contemplated hereby have been

          duly approved by the respective Boards of Directors of Parent and

          Purchaser and by Parent as the sole stockholder of Purchaser, and

          no other corporate proceedings on the part of Parent or Purchaser

          are necessary to consummate the transactions so contemplated. 

          This Agreement has been duly executed and delivered by each of

          Parent and Purchaser and constitutes a valid and binding

          obligation of each of Parent and Purchaser, enforceable against

          Parent and Purchaser in accordance with its terms.

               3.3.  Offer Documents.  The documents (the "Offer
                     ---------------

          Documents") pursuant to which the Offer will be made, including

          the Schedule 14D-1 filed by Purchaser pursuant to the Exchange

          Act (the "Schedule 14D-1"), will comply as to form in all

          material respects with the provisions of the Exchange Act and the

          rules and regulations thereunder.  The information contained in

          the Offer Documents (other than information supplied in writing

          by the Company expressly for inclusion in the Offer Documents)

          will not, at the respective times the Schedule 14D-1 or any

          amendments or supplements thereto are filed with the Commission,

          contain any untrue statement of a material fact or omit to state

          any material fact required to be stated therein or necessary in

          order to make the statements made therein, in light of the

          circumstances under which they were made, not misleading. 

          Purchaser will promptly correct any statements in the Schedule

          14D-1 and the Offer Documents that have become false or

          misleading and take all steps necessary to cause such Schedule 


                                          16


<PAGE>


          14D-1 as so corrected to be filed with the Commission and such

          Offer Documents as so corrected to be disseminated to holders of

          shares of Common Stock, in each case as and to the extent

          required by applicable law.

               3.4.  Proxy Statement.  None of the information to be
                     ---------------

          supplied by Parent or Purchaser in writing expressly for

          inclusion in a proxy or information statement of the Company

          required to be mailed to the Company's stockholders in connection

          with the adoption of this Agreement (the "Proxy Statement"), or

          in any amendments or supplements thereto will, at the time of (a)

          the first mailing thereof and (b) the meeting, if any, of

          stockholders to be held in connection with the adoption of this

          Agreement, contain any untrue statement of a material fact or

          omit to state any material fact required to be stated therein or

          necessary in order to make the statements therein, in light of

          the circumstances under which they were made, not misleading.

               3.5.  Fees.  In no event, including without limitation
                     ----

          termination of this Agreement and abandonment of the Merger

          pursuant to Section 7.1 hereof, will the Company or any of its

          subsidiaries, prior to the Merger, be obligated to pay any fee or

          commission to any financial advisor, broker, finder or

          intermediary in connection with the transactions contemplated

          hereby pursuant to or as a consequence of any agreement or

          commitment of Parent, Purchaser or any of their respective

          affiliates.

               3.6.  Consents and Approvals; No Violation.  Except as set
                     ------------------------------------

          forth in Schedule 3.6, neither the execution and delivery of this


                                          17


<PAGE>


          Agreement by Parent and Purchaser nor the consummation by Parent

          and Purchaser of the transactions contemplated hereby will (a)

          conflict with or result in any breach of any provision of their

          respective certificates of incorporation or by-laws (or

          comparable governing instruments), (b) violate, conflict with,

          constitute a default (or an event which, with notice or lapse of

          time or both, would constitute a default) under, or result in the

          termination of, or accelerate the performance required by, or

          result in the creation of any lien or other encumbrance upon any

          of the properties or assets of Parent or any of its subsidiaries

          under, any of the terms, conditions or provisions of any note,

          bond, mortgage, indenture, deed of trust, license, lease

          agreement or other instrument or obligation to which Parent or

          any such subsidiary is a party or to which they or any of their

          respective properties or assets are subject, except for such

          violations, conflicts, breaches, defaults, terminations,

          accelerations or creations of liens or other encumbrances, which,

          individually or in the aggregate, will not have a material

          adverse effect on the business, financial condition or results of

          operations of Parent and its subsidiaries, taken as a whole, or

          (c) require any consent, approval, authorization or permit of or

          from, or filing with or notification to, any court, governmental

          authority or other regulatory or administrative agency or

          commission, domestic or foreign ("Governmental Entity"), except

          (i) pursuant to the Exchange Act, (ii) filing certificates of

          merger pursuant to the DGCL and the laws of any other state,

          (iii) filings required under the securities or blue sky laws of 


                                          18


<PAGE>


          the various states, (iv) filings under the Hart-Scott-Rodino

          Antitrust Improvements Act of 1976, as amended (the "HSR Act"),

          (v) consents, approvals, authorizations, permits, filings or

          notifications under laws and regulations of various foreign

          jurisdictions, other than Argentina and its provinces, or

          (vi) consents, approvals, authorizations, permits, filings or

          notifications which if not obtained or made will not,

          individually or in the aggregate, have a material adverse effect

          on the business, financial condition or results of operations of

          Parent and its subsidiaries, taken as a whole.

               3.7.  Financing.  Prior to the execution of this Agreement
                     ---------

          by the parties hereto, Parent executed a commitment letter with

          Chase Manhattan Bank, N.A. (the "Commitment"), a copy of which

          has been previously furnished to the Company, providing for up to

          $800 million of acquisition financing.  As of the date hereof,

          the executive officers of Parent have no reason to believe that

          any condition to the financing contemplated by the Commitment

          will not be satisfied in accordance with the terms of the

          Commitment.  Parent and Purchaser hereby covenant that they will

          use their respective reasonable best efforts to obtain the

          financing contemplated by the Commitment.

               3.8. Operations of the Company Following the Merger.  Based
                    ----------------------------------------------

          upon, among other things, Parent's review of the Company's

          financial condition and operations, the Company's business plan

          and the representations made by the Company in this Agreement,

          the financial condition of Parent and its subsidiaries and

          Parent's and Purchaser's present plans with respect to the 


                                          19


<PAGE>


          Company and its subsidiaries following the Merger, Parent has no

          reason to believe that, following the consummation of the Merger

          and the completion of the financings contemplated by the

          Commitment, the Company will not be able to meet its obligations

          as they come due, including solely for purposes of this

          representation preferred stock dividend and mandatory redemption

          payments.

                  IV.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY
                       ---------------------------------------------

               The Company hereby represents and warrants to each of Parent

          and Purchaser that:

               4.1.  Corporate Organization.  The Company is a corporation
                     ----------------------

          duly organized, validly existing and in good standing under the

          laws of its state of incorporation and is in good standing as a

          foreign corporation in each jurisdiction where failure to so

          qualify or be in good standing is reasonably likely to have a

          material adverse effect on the financial condition, properties,

          business or results of operation of the Company and its

          subsidiaries, taken as a whole.  The Company has the requisite

          corporate power to own, lease and operate its properties and

          assets and to carry on its businesses as they are now being

          conducted.  The Company has furnished Parent true and correct

          copies of the certificate of incorporation and by-laws (or other

          governing instruments), as amended to the date hereof, of the

          Company and each of its subsidiaries (except the inactive

          subsidiaries identified as such on Schedule 4.1).  The Company's

          and each subsidiary's certificate of incorporation and by-laws 


                                          20


<PAGE>


          (or other governing instruments) as so delivered are in full

          force and effect.

               4.2.  Capitalization.  As of the date hereof, the authorized
                     --------------

          capital stock of the Company consists of (i) 300,000,000 shares

          of Common Stock and (ii) 100,000,000 shares of Preferred Stock. 

          As of the close of business on February 23, 1995, (a) 135,497,705

          shares of Common Stock were validly issued and outstanding, fully

          paid and nonassessable and not subject to preemptive rights,

          (b) 4,358,658 shares of $4.00 Preferred Stock were validly issued

          and outstanding, fully paid and nonassessable, (c) 1,250,000

          shares of $9.75 Preferred Stock were validly issued and

          outstanding, fully paid and nonassessable, and (d) 3,500,000

          shares of $2.50 Preferred Stock were validly issued and

          outstanding, fully paid and nonassessable.  Since such date, the

          Company has not issued any additional shares of capital stock

          other than pursuant to (i) the exercise or conversion of Options

          and Converts, (ii) the Company's Employee Shareholding and

          Investment Plan (the "401(k) Plan"), or (iii) the Company's

          Director Stock Compensation Plan (the "Director Plan").  Except

          for the Options and Converts, the Rights, shares issued pursuant

          to the Director Plan and as otherwise set forth in this

          Section 4.2, there are not now, and at the Effective Time there

          will not be, any shares of capital stock of the Company

          authorized, issued or outstanding and there are not now, and at

          the Effective Time there will not be, any outstanding

          subscriptions, options, warrants, rights, convertible securities

          or any other agreements or commitments of any character relating 


                                          21


<PAGE>


          to the issued or unissued capital stock or other securities of

          the Company obligating the Company to issue, deliver or sell, or

          cause to be issued, delivered or sold, additional shares of

          capital stock of the Company or obligating the Company to grant,

          extend or enter into any subscription, option, warrant, right,

          convertible security or other similar agreement or commitment. 

          Except as set forth in this Section 4.2, on Schedule 4.2 or

          otherwise in this Agreement, and except for provisions in

          employee plans relating to the pass-through of voting rights,

          there are not now, and at the Effective Time there will not be,

          any voting trusts or other agreements or understandings to which

          the Company or any subsidiary of the Company is a party or is

          bound with respect to the voting of the capital stock of the

          Company.

               4.3.  Authority.  The Company has the requisite corporate
                     ---------

          power and authority to enter into this Agreement and, except for

          any required adoption of this Agreement by the holders of the

          Voting Stock, to consummate the transactions contemplated hereby. 

          The execution and delivery of this Agreement and the consummation

          of the transactions contemplated hereby have been duly and

          validly approved by the Board of Directors of the Company and no

          other corporate proceedings on the part of the Company are

          necessary to enter into this Agreement or to consummate the

          transactions so contemplated, subject only, to the extent

          required with respect to the consummation of the Merger, to

          adoption of this Agreement, if necessary, by the holders of

          Voting Stock.  This Agreement has been duly executed and 


                                          22


<PAGE>


          delivered by, and constitutes a valid and binding obligation of,

          the Company, enforceable against the Company in accordance with

          its terms.

               4.4.  Consents and Approvals; No Violation.  Neither the
                     ------------------------------------

          execution and delivery of this Agreement by the Company nor the

          consummation by the Company of the transactions contemplated

          hereby will (a) conflict with or result in any breach or

          violation of any provision of, or constitute a default (or an

          event which, with notice or lapse of time or both, would

          constitute a default) under, or result in the termination of, or

          accelerate the performance required by, or result in the creation

          of any lien or other encumbrance upon any of the properties or

          assets of the Company or any of its subsidiaries under, any of

          the terms, conditions or provisions of (i) their respective

          certificates of incorporation or by-laws or (ii) any note, bond,

          mortgage, indenture, deed of trust, license, lease, agreement or

          other instrument or obligation to which the Company or any such

          subsidiary is a party or to which they or any of their respective

          properties or assets are subject, except for such violations,

          conflicts, breaches, defaults, terminations, accelerations or

          creations of liens or other encumbrances which are set forth on

          Schedule 4.4 or which, individually or in the aggregate, will not

          have a material adverse effect on the business, financial

          condition or results of operations of the Company and its

          subsidiaries, taken as a whole, or (b) require any consent,

          approval, authorization or permit of, or filing with or

          notification to, any Governmental Entity, except (i) pursuant to 


                                          23


<PAGE>


          the Exchange Act, (ii) filing certificates of merger pursuant to

          the DGCL and the laws of any other state, (iii) filings required

          under the securities or blue sky laws of the various states, (iv)

          filings under the HSR Act, (v) consents, approvals,

          authorizations, permits, filings or notifications under laws and

          regulations of various foreign jurisdictions listed or described

          on Schedule 4.4, and (vi) consents, approvals, authorizations,

          permits, filings or notifications which if not obtained or made

          will not, individually or in the aggregate, have a material

          adverse effect on the business, financial condition or results of

          operations of the Company and its subsidiaries, taken as a whole.

               4.5.  Commission Filings.  The Company has heretofore filed
                     ------------------

          all statements, forms, reports and other documents with the

          Commission required to be filed pursuant to the Securities Act of

          1933, as amended (the "Securities Act"), and the Exchange Act

          since January 1, 1993, and has made available to Parent copies of

          all such statements, forms, reports and other documents,

          including without limitation each registration statement, Current

          Report on Form 8-K, proxy or information statement, Annual Report

          on Form 10-K and Quarterly Report on Form 10-Q filed during such

          period (in the case of each such report, including all exhibits

          thereto) (the "SEC Documents").  The SEC Documents, as of their

          respective filing dates, complied as to form in all material

          respects with all applicable requirements of the Securities Act

          and the Exchange Act and did not (as of their respective filing

          dates) contain any untrue statement of a material fact or omit to

          state a material fact required to be stated therein or necessary 


                                          24


<PAGE>


          in order to make the statements made therein, in light of the

          circumstances under which they were made, not misleading.  The

          audited and unaudited consolidated financial statements, together

          with the notes thereto, of the Company included (or incorporated

          by reference) in the SEC Documents present fairly, in all

          material respects, the financial position of the Company and its

          consolidated subsidiaries as of the dates thereof and the results

          of their operations and changes in financial position for the

          periods then ended in accordance with generally accepted

          accounting principles ("GAAP") applied on a consistent basis

          (except as stated in such financial statements), subject, in the

          case of the unaudited financial statements, to normal year-end

          audit adjustments.

               4.6.  Absence of Certain Changes.  Except as disclosed in
                     --------------------------

          the SEC Documents, as disclosed to Parent by the Company in a

          writing which makes express reference to this Section 4.6 or as

          set forth on Schedule 4.6, since December 31, 1994, the Company

          and its subsidiaries have conducted their respective businesses

          only in the ordinary course, and there has not been (a) any event

          or change having or that is reasonably expected to have a

          material adverse effect on the business, financial condition or

          results of operations of the Company and its subsidiaries, taken

          as a whole, (b) in the case of the Company, any declaration,

          setting aside or payment of any dividend or other distribution

          with respect to its capital stock, other than the regular cash

          dividends on shares of $4.00 Preferred Stock, $9.75 Preferred

          Stock and $2.50 Preferred Stock, or relating to the redemption of


                                          25


<PAGE>


          the Rights as herein contemplated, (c) in the case of the

          Company, any change by the Company in accounting principles used

          for purposes of financial reporting, (d) any entry into any

          agreement or understanding, whether written or (if enforceable)

          oral, between the Company or any of its subsidiaries on the one

          hand, and any of their respective employees at Pay Grade 12 or

          above ("Senior Executives"), on the other hand, providing for the

          employment of any such Senior Executive or any severance or

          termination benefits payable or to become payable by the Company

          or any subsidiary to any Senior Executive, or (e) except as

          permitted by this Agreement, any increase (including any increase

          effective in the future) in (i) the compensation, severance or

          termination benefits payable or to become payable by the Company

          or any subsidiary to any Senior Executive (or any increase in

          benefits under any change in control severance arrangement

          applicable to employees of the Company and its subsidiaries,

          generally) or (ii) any bonus, insurance, pension or other

          employee benefits (including without limitation the granting of

          stock options, stock appreciation rights or restricted stock

          awards) made to, for or with any Senior Executive, except for

          normal increases associated with regular annual performance

          evaluations in the ordinary course of business or normal accruals

          of benefits under the terms of any such plan or arrangement.

               4.7.  Litigation.  Except as disclosed in SEC Documents
                     ----------

          filed prior to the date of this Agreement or on Schedule 4.7,

          there is no suit, action, investigation or proceeding pending,

          or, to the knowledge of the executive officers of the Company, 


                                          26


<PAGE>


          threatened against or affecting the Company or any subsidiary of

          the Company which is reasonably expected to have a material

          adverse effect on the Company and its subsidiaries taken as a

          whole, nor is there any judgment, decree, injunction, rule or

          order of any Governmental Entity or arbitrator outstanding

          against the Company having, or which, insofar as reasonably can

          be foreseen, in the future would have, any such effect.

               4.8.  Compliance with Applicable Laws.  The Company and each
                     -------------------------------

          of its subsidiaries hold, and at all relevant times have held,

          all material licenses, franchises, permits and authorizations

          necessary for the lawful conduct of its business substantially as

          it is currently conducted.  Except as required to be disclosed in

          the SEC Documents filed prior to the date of this Agreement or as

          to matters for which reserves have been established and which

          reserves have been disclosed to Purchaser, to the knowledge of

          the executive officers of the Company, the businesses of the

          Company and its subsidiaries are not presently being conducted,

          and to the knowledge of the executive officers of the Company,

          have not previously been conducted, in violation of any law,

          ordinance or regulation of any Governmental Entity, except for

          possible violations which individually or in the aggregate do

          not, and, insofar as reasonably can be foreseen, in the future

          will not, have a material adverse effect on the Company and its

          subsidiaries taken as a whole.  Except as described in SEC

          Documents filed prior to the date of this Agreement, no

          investigation or review by any Governmental Entity concerning any

          such possible violations by the Company or any of its 


                                          27


<PAGE>


          subsidiaries is pending or, to the knowledge of the executive

          officers of the Company, threatened, nor has any Governmental

          Entity indicated an intention to conduct the same in each case

          other than those the outcome of which will not have a material

          adverse effect on the Company and its subsidiaries taken as a

          whole.

               4.9.  Fees.  Except as will be set forth in the Schedule
                     ----

          14D-9, neither the Company nor any of its subsidiaries has paid

          or become obligated to pay any fee or commission to any financial

          advisor, broker, finder or intermediary in connection with the

          transactions contemplated hereby.  The Company has previously

          furnished Parent a copy of its engagement letter with CSFB.

               4.10.  Offer Documents.  None of the information supplied by
                      ---------------

          the Company or its subsidiaries in writing expressly for

          inclusion in the Offer Documents or in any amendments thereto or

          supplements thereto will, at the time supplied or upon the

          expiration of the Offer, contain any untrue statement of a

          material fact or omit to state any material fact required to be

          stated therein or necessary in order to make the statements

          therein, in light of the circumstances under which they were

          made, not misleading.

               4.11.  Schedule 14D-9.  The Schedule 14D-9 will comply as to
                      --------------

          form in all material respects with the applicable requirements of

          the Exchange Act and the rules and regulations thereunder and

          will not, at the respective times the Schedule 14D-9 or any

          amendments thereto or supplements thereto are filed with the

          Commission, contain any untrue statement of a material fact or 


                                          28


<PAGE>


          omit to state any material fact required to be stated therein or

          necessary in order to make the statements therein, in light of

          the circumstances under which they were made, not misleading. 

          The Company will promptly correct any statements in the Schedule

          14D-9 that have become materially false or misleading and take

          all steps necessary to cause such Schedule 14D-9 as so corrected

          to be filed with the Commission and to be disseminated to holders

          of shares of Voting Stock, in each case as and to the extent

          required by applicable law.

               4.12.  Proxy Statement.  The Proxy Statement and all
                      ---------------

          amendments and supplements thereto will comply as to form in all

          material respects with the applicable requirements of the

          Exchange Act and the rules and regulations thereunder and will

          not, at the time of (a) the first mailing thereof and (b) the

          meeting, if any, of stockholders to be held in connection with

          the Merger, together with any amendments and supplements thereto,

          contain any untrue statement of a material fact or omit to state

          any material fact required to be stated therein or necessary in

          order to make the statements therein, in light of the

          circumstances under which they were made, not misleading, except

          that no representation is made by the Company with respect to

          information supplied in writing by Parent or any affiliate of

          Parent expressly for inclusion in the Proxy Statement.

               4.13.  Rights.  The Company has, or prior to the
                      ------

          commencement of the Offer shall have, taken the necessary steps

          to redeem prior to the close of business on the 20th calendar day

          after commencement of the Offer all of the outstanding Rights 


                                          29


<PAGE>


          issued pursuant to the Rights Agreement in accordance with the

          terms of the Rights Agreement and applicable law.

               4.14.  Certain Actions.  The actions referred to in Section
                      ---------------

          1.2 have been duly taken by the Board of Directors of the Company

          prior to the date hereof.

               4.15.  Subsidiaries.  (a) Each subsidiary of the Company is
                      ------------

          a corporation or other legal entity duly incorporated or

          organized, validly existing and in good standing under the laws

          of its jurisdiction of incorporation or organization, has all

          requisite corporate or similar power and authority to own its

          properties and assets and to carry on its business as now

          conducted except where the failure to have such power and

          authority would not have a material adverse effect on the

          financial condition, properties, business or results of

          operations of the Company and its subsidiaries taken as a whole. 

          Each subsidiary of the Company is duly qualified to do business

          as a foreign corporation or other legal entity and is in good

          standing in each jurisdiction where the character of the property

          owned or leased by it or the nature of its activities make such

          qualification necessary, except for those jurisdictions where

          failure to be so qualified or in good standing would not,

          individually or in the aggregate, have a material adverse effect

          on the financial condition, properties, business or results of

          operations of the Company and its subsidiaries taken as a whole. 

          Schedule 4.15(a) sets forth the name, jurisdiction of

          incorporation or organization, capitalization and equity holders

          of each subsidiary of the Company.  Except as disclosed in 


                                          30


<PAGE>


          Schedule 4.15(a) and except for insignificant equity or other

          interests received in the ordinary course of business of the

          Company, the Company does not own, directly or indirectly, or

          have voting rights with respect to, any capital stock or other

          equity securities of any corporation or have any direct or

          indirect equity or ownership interest in any business.

                    (b)  Except as disclosed on Schedule 4.15(a) or

          4.15(b), or as may be disclosed on the certificates representing

          the capital stock of the subsidiaries of the Company or provided

          pursuant to the terms of partnership agreements, joint venture

          agreements or other constituent documentation, copies of which

          have been provided or made available to representatives of

          Parent, and except as may be required under the securities laws

          of any jurisdiction, (i) all of the outstanding capital stock of,

          or other ownership interests in, each subsidiary of the Company,

          has been validly issued, is (in the case of capital stock) fully

          paid and nonassessable and (in the case of partnership interests)

          not subject to current or future capital calls, and is owned by

          the Company, directly or indirectly, free and clear of any lien

          and free of any other charge, claim, encumbrance, limitation or

          restriction (including any restriction on the right to vote, sell

          or otherwise dispose of such capital stock or other ownership

          interests) and (ii) there are not now, and at the Effective Time

          there will not be, any outstanding subscriptions, options,

          warrants, calls, rights, convertible securities or other

          agreements or commitments of any character relating to the issued

          or unissued capital stock or other securities of any of the 


                                          31


<PAGE>


          Company's subsidiaries, or otherwise obligating the Company or

          any such subsidiary to issue, transfer or sell any such

          securities or to make any payments in respect of any of its

          securities or its equity.

               4.16.  No Default.  Neither the Company nor any of its
                      ----------

          subsidiaries which would be a "significant subsidiary" within the

          meaning of Regulation S-X (a "Significant Subsidiary") is in

          default or violation (and no event has occurred which with notice

          or the lapse of time or both would constitute a default or

          violation) of any term, condition or provision of (a) the

          Certificate or the By-Laws of the Company, (b) the organizational

          documentation of any Significant Subsidiary, or (c) except as set

          forth in Schedule 4.16, any note, bond, mortgage, indenture,

          license, contract, franchise, permit, lease, agreement or other

          instrument or obligation to which the Company or any of its

          Significant Subsidiaries is a party or by which they or any of

          their properties or assets may be bound, except for defaults or

          violations which, in the case of clauses (b) or (c) of this

          sentence, will not, individually or in the aggregate, have a

          material adverse effect on the financial condition, properties,

          business or results of operations of the Company and its

          Significant Subsidiaries taken as a whole.

               4.17.  Taxes.  (a) Except as set forth in Schedule 4.17, the
                      -----

          Company has filed all federal, state, local and foreign tax

          returns required to be filed by itself and by each of its and any

          member of its consolidated, combined or similar group (each such

          member a "Tax Affiliate") and by any of the Company's 


                                          32


<PAGE>


          subsidiaries and has paid or caused to be paid, or has made

          adequate provision or set up adequate accruals or reserves which,

          in the aggregate, are adequate under GAAP in respect of,

          liabilities for taxes required to be paid in respect of the

          periods for which returns are due, and has established (or will

          establish at least quarterly) similar accruals or reserves for

          the payment of all taxes payable in respect of periods subsequent

          to the last of such periods required to be so accrued or

          reserved, as the case may be.  Except as set forth in Schedule

          4.17, neither the Company nor any of its Tax Affiliates or

          subsidiaries has entered into any written agreement or other

          document waiving or extending the time to assess any taxes due to

          any United States jurisdiction ("Domestic Taxes") nor, to the

          knowledge of the executive officers of the Company, has any such

          entity entered into any such agreement or other document in

          respect of any tax due to any jurisdiction outside the United

          States.  Except as set forth in Schedule 4.17, the tax returns of

          the Company, its Tax Affiliates and subsidiaries of the Company

          relating to Domestic Taxes are not under active audit by the

          Internal Revenue Service or any comparable state or local agency. 

          The open taxable years of the Company, its Tax Affiliates and its

          subsidiaries relating to United States federal income taxes are

          set forth in Schedule 4.17.  At no time within the last five

          years, and to the knowledge of the executive officers of the

          Company, (i) at no time in the preceding eight years, have the

          Company, any of its Tax Affiliates or any of its subsidiaries

          ever filed a consent under Section 341(f) of the Internal Revenue


                                          33


<PAGE>


          Code of 1986, as amended (the "Code"), concerning collapsible

          corporations, (ii) except as set forth on Schedule 4.17, none of

          the Company, any of its Tax Affiliates or any of its subsidiaries

          has made any payments, is obligated to make any payments, or is a

          party to any agreement that under certain circumstances obligates

          it to make any payments that will not be deductible under

          Sections 280G or 162(m) of the Code; provided, however, that the

          foregoing representation will not apply to any payments made as a

          result of this Agreement or the transactions contemplated hereby,

          (iii) the Company is not currently a United States real property

          holding corporation within the meaning of Section 897(c)(2) of

          the Code, (iv) each of the Company, each of its Tax Affiliates

          and each of its subsidiaries has disclosed on its federal income

          Tax Returns all positions taken therein that could give rise to a

          material understatement of federal income tax within the meaning

          of Section 6662 of the Code, (v) none of the Company, any of its

          Tax Affiliates or any of its subsidiaries is a party to any tax

          allocation or sharing agreement other than as set forth in

          Schedule 4.17, and (vi) none of the Company, any of its Tax

          Affiliates or any of its subsidiaries (A) has been a member of an

          affiliated group filing a consolidated federal income tax return

          (other than a group the common parent of which was the Company)

          for any open taxable year or (B) has any liability for the taxes

          of any person or entity (other than any of the Company and any of

          its Affiliates and any of its subsidiaries) under Treas. Reg.

          Sec. 1.1502-6 (or any similar provision of state, local or foreign

          law), as a transferee or successor, by contract, or otherwise 


                                          34


<PAGE>


          except as set forth in Schedule 4.17 or as otherwise disclosed to

          Purchaser.

                    (b)  For the purposes of this Section, (i) the term

          "tax" means income, gross receipts, payroll, employment, excise,

          severance, stamp, windfall profits, environmental (including

          taxes under Section 59A of the Code), customs duties, capital

          stock, franchise, profits, withholding, social security (or

          similar), unemployment, disability, real property, personal

          property, sales, use, transfer, registration, value added,

          alternative or add-on minimum, estimated or other tax of any

          kind, levies, penalties, or interest imposed by any United States

          federal, state, local and foreign or other taxing authority on

          the Company or any of its Tax Affiliates, and (ii) the term "tax

          return" includes any return, declaration, claim for refund or

          information return relating to taxes, including without

          limitation any schedule or attachment thereto and including any

          amendment thereof.

               4.18.  Insurance.  Schedule 4.18 lists all insurance
                      ---------

          policies carried by the Company or any of its subsidiaries

          insuring occurrences or claims on or made on the date hereof. 

          There is no default by the Company or any subsidiary with respect

          to any provision contained in any such insurance policy which

          would permit the denial of coverage or cancellation of coverage

          thereunder, except for defaults or failures which, individually

          or in the aggregate, would not have a material adverse effect on

          the Company and its subsidiaries taken as a whole.


                                          35


<PAGE>


               4.19.  Benefit Plans.  (a) Schedule 4.19(a) lists (i) the
                      -------------

          material "employee benefit plans" (within the meaning of

          Section 3(3) of the Employee Retirement Income Security Act of

          1974, as amended ("ERISA")), which the Company or any of its

          subsidiaries maintains or sponsors or with respect to which the

          Company or any of its subsidiaries has any material liability

          (actual or contingent, primary or secondary), and (ii) all other

          (A) employee benefit plans, programs or arrangements, (B) stock

          purchase, stock option, severance, bonus, incentive and deferred

          compensation plans, (C) written employment contracts, and (D)

          change-in-control agreements which the Company or any of its

          subsidiaries maintains, sponsors or is a party to or with respect

          to which the Company or any of its subsidiaries has any material

          liability.  (The plans, programs, arrangements, contracts and

          agreements referred to in the preceding sentence are collectively

          referred to herein as the "Benefit Plans.")

                    (b)  Except as set forth on Schedule 4.19(b), (i) the

          reserves reflected in the balance sheet contained in the audited

          financial statements for the period ending December 31, 1994

          (together with all footnotes attached thereto, the "Balance

          Sheet") relating to any unfunded benefits under the Benefit Plans

          were adequate in the aggregate under GAAP as of December 31, 1994

          and (ii) neither the Company nor any of its subsidiaries has

          incurred any material unfunded liability in respect of any such

          plans since that date.

                    (c)  There are no suits or claims pending or, to the

          knowledge of the Company's executive officers, threatened 


                                          36


<PAGE>


          relating to or for benefits under the Benefit Plans, except for

          those suits or claims set forth on Schedule 4.19(c) or which,

          individually or in the aggregate, will not have a material

          adverse effect on the business, financial condition or results of

          operation of the Company or its subsidiaries, taken as a whole.

                    (d)  (i)  Each Benefit Plan has been established and

          administered in all material respects in accordance with its

          terms, and in all material respects in compliance with the

          applicable provisions of ERISA, the Code and other applicable

          laws, rules and regulations and (ii) each Benefit Plan which is

          intended to be qualified within the meaning of Code Section

          401(a) is so qualified and nothing has occurred, to the knowledge

          of the executive officers of the Company, whether by action or

          failure to act, which is reasonably expected to cause the loss of

          such qualification except where such loss of qualification would

          not have a material adverse effect on the business, financial

          condition or results of operation of the Company or its

          subsidiaries, taken as a whole.

                    (e)  Except as set forth on Schedule 4.19(e), (i) no

          Benefit Plan currently has any "accumulated funding deficiency"

          as such term is defined in ERISA Section 302 and Code Section 412

          (whether or not waived); (ii) to the knowledge of the executive

          officers of the Company, no event or condition exists which is a

          reportable event within the meaning of ERISA Section 4043 with

          respect to any Benefit Plan that is subject to Title IV of ERISA;

          (iii) each member of the Company's Controlled Group (as defined

          below) has made all required premium payments when due to the 


                                          37


<PAGE>


          Pension Benefit Guaranty Corporation ("PBGC"); (iv) neither the

          Company nor any member of its Controlled Group is subject to any

          liability to the PBGC for any plan termination; (v) no amendment

          has occurred which requires the Company or any member of its

          Controlled Group to provide security pursuant to Code Section

          401(a)(29); and (vi) neither the Company nor any member of its

          Controlled Group has engaged in a transaction which is reasonably

          likely to subject it to liability under ERISA Section 4069,

          except, in each case, where any such circumstance will not have a

          material adverse effect on the business, financial condition or

          results of operations of the Company and its subsidiaries, taken

          as a whole.  For the purposes of this Section 4.19, the term

          "Controlled Group" means all corporations, trades or businesses

          which, together with the Company, are treated as a single

          employer under Section 414 of the Code.

                    (f)  No Benefit Plan is a multiemployer plan (within

          the meaning of Section 3(37) of ERISA) and neither the Company

          nor any member of its Controlled Group is reasonably likely to

          incur any liability to any multiemployer plan nor is engaged in a

          transaction which is reasonably expected to subject the Company

          to any material liability under ERISA Section 4212(c).

               4.20.  Labor Matters.  Except as set forth in Schedule 4.20,
                      -------------

          (a) neither the Company nor any of its subsidiaries is party to

          an unexpired collective bargaining agreement or other unexpired

          material contract or agreement with any labor organization or

          other representative of employees nor is any such contract being

          negotiated; (b) there is no material unfair labor practices 


                                          38


<PAGE>


          charge or complaint pending nor, to the knowledge of the

          executive officers of the Company, threatened, with regard to

          employees of the Company or any of its subsidiaries; (c) there is

          no labor strike, material organized slowdown, material organized

          work stoppage or other material organized labor controversy in

          effect or, to the knowledge of the executive officers of the

          Company, threatened against the Company or any of its

          subsidiaries; (d) as of the date hereof, to the knowledge of the

          executive officers of the Company, no representation question

          exists and no campaigns are being conducted to solicit cards from

          the employees of the Company or any subsidiary of the Company to

          authorize representation by any labor organization; (e) neither

          the Company nor any subsidiary of the Company is party to, or is

          otherwise bound by, any consent decree with any governmental

          authority relating to employees or employment practices of the

          Company or any subsidiary of the Company which is material to the

          Company or its subsidiaries taken as a whole; and (f) the Company

          and each subsidiary of the Company is in compliance with all

          applicable agreements, contracts and policies relating to

          employment, employment practices, wages, hours and terms and

          conditions of employment of the employees except where failure to

          be in compliance with each such agreement, contract and policy is

          not, individually or in the aggregate, reasonably likely to have

          a material adverse effect on the financial condition, properties,

          business or results of operations of the Company and its

          subsidiaries taken as a whole.


                                          39


<PAGE>


               4.21.  Certain Environmental Matters.  To the knowledge of
                      -----------------------------

          the executive officers of the Company, (a) the reserves reflected

          in the Balance Sheet relating to environmental matters were

          adequate under GAAP as of December 31, 1994, and neither the

          Company nor any of its subsidiaries has incurred any material

          liability in respect of any environmental matter since that date,

          and (b) the SEC Documents include all information relating to

          environmental matters required to be included therein under the

          rules and regulations of the Commission applicable thereto.   

                                    V.  COVENANTS
                                        ---------

               5.1.  Acquisition Proposals.  Neither the Company nor any of
                     ---------------------

          its subsidiaries may, directly or indirectly, and each will

          instruct and otherwise use its reasonable best efforts to cause

          its affiliates that are controlled by the Company, and the

          officers, directors, employees, agents or advisors or other

          representatives or consultants of the Company not to, encourage,

          solicit, initiate, engage or participate in discussions or

          negotiations with, or provide information to, any Person (as

          hereafter defined) (other than Parent, Purchaser or subsidiaries,

          affiliates or representatives of any of the foregoing) in

          connection with any tender offer, exchange offer, merger,

          consolidation, business combination, sale of substantial assets,

          sale of securities, liquidation, dissolution or similar

          transaction involving the Company or any of its subsidiaries or

          divisions, including, without limitation, Midgard Energy Company. 

          Notwithstanding the foregoing, the Company may do any of the

          foregoing if outside counsel to the Company advises the Company's


                                          40


<PAGE>


          Board of Directors that any such action is required for the

          Company's directors to satisfy their fiduciary duties to the

          Company and its constituencies under applicable law.  The Company

          will (a) promptly notify Parent in the event of any discussion,

          negotiation, proposal or offer of the type referred to in the

          first sentence of this Section 5.1 or any decision to furnish

          information or take any other action referred to in the second

          sentence of this Section 5.1 and (b) promptly furnish Parent

          copies of all written information furnished to any Person

          pursuant to the second sentence of this Section 5.1 to the extent

          not previously furnished to Parent.

               5.2.  Interim Operations.  During the period from the date
                     ------------------

          of this Agreement to the earlier of the time that the designees

          of Parent have been elected to, and constitute a majority of, the

          Board of Directors of the Company pursuant to Section 1.4 hereof

          or the Effective Time, except as specifically contemplated by

          this Agreement, as set forth in Schedule 5.2 or as otherwise

          approved by Parent in a writing which makes express reference to

          this Section 5.2:

                    5.2.1.  Conduct of Business.  The Company will, and
                            -------------------

               will cause each of its subsidiaries to, conduct their

               respective businesses only in, and not take any action

               except in, the ordinary and usual course of business

               substantially consistent with past practice.  The Company

               will use reasonable efforts to preserve intact the business

               organization of the Company and each of its subsidiaries, to

               keep available the services of its and their present 


                                          41


<PAGE>


               officers and key employees and to preserve the goodwill of

               those having business relationships with it or its

               subsidiaries.

                    5.2.2.  Certificate and By-Laws.  The Company will not
                            -----------------------

               and will not permit any of its subsidiaries to make or

               propose any change or amendment to their respective

               certificates of incorporation or by-laws (or comparable

               governing instruments), except as may be required by law.

                    5.2.3.  Capital Stock.  The Company will not and will
                            -------------

               not permit any of its subsidiaries to authorize for

               issuance, issue, sell or deliver any shares of capital stock

               or any other securities of any of them (other than pursuant

               to the Options, Options and Converts, the $4.00 Preferred

               Stock, the $9.75 Preferred Stock or the 401(k) Plan or the

               issuance of shares issued under the terms of the Director

               Plan in a manner consistent with any such plan or past

               practice) or issue any securities convertible into or

               exchangeable for, or options, warrants to purchase, scrip,

               rights to subscribe for, calls or commitments of any

               character whatsoever relating to, or enter into any contract

               with respect to the issuance of, any shares of capital stock

               or any other securities of any of them (other than pursuant

               to the Options, Options and Converts, the $4.00 Preferred

               Stock, the $9.75 Preferred Stock, the 401(k) Plan (or in

               connection with the 401(k) Plan or the Director Plan as

               aforesaid), purchase or otherwise acquire or enter into any

               contract with respect to the purchase or voting of shares of


                                          42


<PAGE>


               their capital stock, or adjust, split, combine or reclassify

               any of their capital stock or other securities, or make any

               other changes in their capital structures.

                    5.2.4.  Dividends.  The Company will not and will not
                            ---------

               permit any of its subsidiaries to declare, set aside, pay or

               make any dividend or other distribution or payment (whether

               in cash, stock or property) with respect to, or purchase or

               redeem, any shares of the capital stock of any of them other

               than (a) regular quarterly cash dividends on the $4.00

               Preferred Stock, the $9.75 Preferred Stock and the $2.50

               Preferred Stock, (b) dividends, distributions or payments

               paid by its subsidiaries to the Company or its subsidiaries

               with respect to their capital stock, (c) the Rights in

               accordance with the Rights Agreement, and (d) loans and

               payments from the Company to any of its subsidiaries or from

               any of such subsidiaries to the Company or another such

               subsidiary.

                    5.2.5.  Debt.  Except as set forth in Schedule 5.2.5,
                            ----

               the Company and its subsidiaries will not, except in the

               ordinary course of business, (a) incur or assume any

               indebtedness, (b) assume, guarantee, endorse or otherwise

               become liable (whether directly, contingently or otherwise)

               for the obligation of any other Person except in the

               ordinary course of business and consistent with past

               practice, or (c) make any loans, advances or capital

               contributions to, or investments (other than intercompany

               accounts and short-term investments pursuant to customary 


                                          43


<PAGE>


               cash management systems of the Company in the ordinary

               course and consistent with past practices) in, any other

               Person other than such of the foregoing as are made by the

               Company to or in a wholly owned subsidiary of the Company.

               5.3.  Employee Plans, Compensation, Etc.  (a) Except as
                     ----------------------------------

          provided in Section 2.6 hereof, this Section 5.3 or as set forth

          in Schedule 5.3 or required by applicable law, prior to the

          Effective Time the Company will not and will not permit any of

          its subsidiaries to adopt or amend any bonus, profit sharing,

          compensation, severance, termination, stock option, pension,

          retirement, deferred compensation, welfare benefit plan, change-

          in-control agreement, restricted stock, performance unit,

          employment or other employee benefit agreements, trusts, plans,

          funds or other arrangements for the benefit or welfare of any

          director, officer or employee, or (except, other than with

          respect to the Senior Executives, for normal increases in the

          ordinary course of business that are consistent with past

          practices and that, in the aggregate, do not result in a material

          increase in benefits or compensation expense to the Company or

          pursuant to collective bargaining agreements or other contracts

          presently in effect) increase in any manner the compensation or

          fringe benefits of any director or officer or pay any benefit not

          required by any existing plan, arrangement or contract (including

          without limitation the granting of stock options, stock

          appreciation rights, shares of restricted stock or performance

          units) or take any action or grant any benefit not expressly

          required under the terms of any existing contracts, trusts, 


                                          44


<PAGE>


          plans, funds or other such arrangements or enter into any

          contract to do any of the foregoing.

                    (b)  Subject to Purchaser's purchase of Common Stock

          pursuant to the Offer and for a period of 12 months following the

          Effective Time, the Company or Surviving Corporation, as the case

          may be, will continue without amendment or change, except changes

          which increase compensation or benefits paid or payable

          thereunder or as may be required by law, the Benefit Plans and

          other sponsored, maintained or offered compensation and benefit

          policies, practices, programs and arrangements which provide

          compensation or benefits to employees of the Company or its

          subsidiaries.  Anything in the preceding sentence to the contrary

          notwithstanding, (i) to the extent any Benefit Plan, or such

          other compensation or benefit policy, practice, program or

          arrangement other than any stock option, restricted stock or

          other stock-based award plan or program ("Stock Plans") so

          allows, the Surviving Corporation may replace any of such

          individual plans, policies, practices, programs or arrangements

          with another plan, policy, practice, program or arrangement

          providing, in the aggregate, not less than a substantially

          equivalent level of compensation or benefits, as the case may be,

          and (ii) the Company or the Surviving Corporation, as the case

          may be, may amend or replace any Stock Plan of the Company with

          another plan, policy, practice, program or arrangement that the

          Board of Directors of the Company or the Surviving Corporation,

          as the case may be, determines in good faith provides comparable

          incentive compensation opportunities.


                                          45


<PAGE>


                    (c)  Except as may be expressly provided in a valid

          written waiver voluntarily signed by an affected employee, the

          Company will honor and, on and after the Effective Time, Parent

          will cause the Surviving Corporation to honor in accordance with

          the terms thereof, without offset, deduction, counterclaim,

          interruption or deferment (other than withholdings under

          applicable law), all employment, change-in-control, severance,

          termination, consulting and unfunded retirement or benefit

          agreements to which the Company or any of its subsidiaries is

          presently a party ("Benefits Agreements").  All of the Benefits

          Agreements which require the Company to make payments in excess

          of $250,000 from and after the Effective Date are set forth in

          Schedule 5.3.

                    (d)  Without limiting the obligations of Parent,

          Purchaser, the Company or the Surviving Corporation contained

          herein, the parties will take the actions, if any, with respect

          to employment, severance and other benefits as set forth in

          Schedule 5.3.

                    (e)  Parent will consult with the human resources

          department of the Company regarding the appropriate treatment of

          the insurance, compensation and other benefit plans of the

          Company after the Merger.

               5.4.  Access and Information.  The Company will (and will
                     ----------------------

          cause each of its subsidiaries to) afford to Parent and its

          representatives (including without limitation directors, officers

          and employees of Parent and its affiliates, and counsel,

          accountants and other professionals retained by Parent) such 


                                          46


<PAGE>


          access, during normal business hours throughout the period prior

          to the Effective Time, to the Company's books, records (including

          without limitation tax returns and work papers of the Company's

          independent auditors), properties, personnel and to such other

          information as Parent reasonably requests and will permit Parent

          to make such inspections as Parent may reasonably request and

          will cause the officers of the Company and those of its

          subsidiaries to furnish Parent with such financial and operating

          data and other information with respect to the business,

          properties and personnel of the Company and its subsidiaries as

          Parent may from time to time reasonably request, provided,

          however, that no investigation pursuant to this Section 5.4 will

          affect or be deemed to modify any of the representations or

          warranties made by the Company in this Agreement.  Subject to the

          requirements of law, Parent will hold in confidence, and will

          instruct and use its reasonable best efforts to cause its

          representatives to keep confidential, all such non-public

          information it may acquire in its investigation pursuant to this

          Section 5.4, and if this Agreement is terminated, Parent will,

          and will instruct and use its reasonable best efforts to cause

          its representatives to, destroy or deliver to the Company all

          documents, work papers and other material (including copies)

          obtained by Parent or such representatives pursuant to this

          Section 5.4 and such of the foregoing as has been furnished by

          the Company to Parent or Purchaser prior to the date hereof,

          whether so obtained or furnished before or after the execution

          hereof.  Nothing in this Section 5.4 will require the Company to 


                                          47


<PAGE>


          afford Parent or its representatives access to any information,

          documents or materials which are privileged or which are

          confidential and as to which such disclosure would cause the loss

          of privilege or breach the terms of a confidentiality agreement.

               5.5.  Certain Filings, Consents and Arrangements.  Parent,
                     ------------------------------------------

          Purchaser and the Company will (a) promptly make their respective

          filings, and will thereafter use their best efforts promptly to

          make any required submissions under the HSR Act with respect to

          the Offer, the Merger and the other transactions contemplated by

          this Agreement and (b) cooperate with one another (i) in promptly

          determining whether any filings are required to be made or

          consents, approvals, permits or authorizations are required to be

          obtained under any other federal, state or foreign law or

          regulation and (ii) in promptly making any such filings,

          furnishing information required in connection therewith and

          seeking timely to obtain any such consents, approvals, permits or

          authorizations.

               5.6.  State Takeover Statutes.  The Company will use its
                     -----------------------

          reasonable best efforts to (a) exempt the Company, the Offer and

          the Merger from the requirements of any state takeover law by

          action of the Company's Board of Directors or otherwise and (b)

          assist in any challenge by Purchaser to the validity or

          applicability to the Offer or the Merger of any state takeover

          law.

               5.7.  Proxy Statement.  As soon as reasonably practicable
                     ---------------

          after the date hereof, the Company will, if required by

          applicable law in order to consummate the Merger, prepare the 


                                          48


<PAGE>


          Proxy Statement, file it with the Commission and mail it to all

          holders of shares of Voting Stock.  Parent, Purchaser and the

          Company will cooperate with each other in the preparation of the

          Proxy Statement; without limiting the generality of the

          foregoing, Parent and Purchaser will furnish to the Company the

          information relating to Parent and Purchaser required by the

          Exchange Act to be set forth in the Proxy Statement.  The

          Company, acting through its Board of Directors, subject to the

          fiduciary duties of the Company's Board of Directors as advised

          by counsel, will include in the Proxy Statement the

          recommendation of its Board of Directors that stockholders of the

          Company vote in favor of the adoption of this Agreement and use

          its reasonable best efforts to secure such adoption.

               5.8.  Indemnification and Insurance.  For seven years after
                     -----------------------------

          the Effective Time, Parent will cause the Surviving Corporation

          to indemnify, defend and hold harmless the present and former

          officers, directors, employees and agents of the Company and its

          subsidiaries (an "Indemnified Party") against all losses, claims,

          damages or liabilities arising out of actions or omissions

          occurring on, prior to or after the Effective Time (whether or

          not based in whole or in part on the sole or concurrent

          negligence of the Indemnified Party or on the theory of strict

          products liability) to the full extent provided under Delaware

          law, the Certificate and By-Laws of the Company in effect at the

          date hereof and under all agreements to which the Company is a

          party as of the date hereof, including without limitation

          provisions relating to advances of expenses incurred in the 


                                          49


<PAGE>


          defense of any action or suit (including without limitation

          attorneys' fees of counsel selected by the Indemnified Party),

          provided that any determination required to be made with respect

          to whether an Indemnified Party's conduct complies with the

          standards set forth under Delaware law, the Certificate or

          By-Laws of the Company or under any such contract will be made by

          independent counsel selected by the Indemnified Party and

          reasonably satisfactory to the Surviving Corporation.  Nothing in

          this Agreement shall diminish or impair the rights of any

          Indemnified Party under the Certificate or By-Laws of the Company

          or any agreement to which the Company is a party at the date

          hereof.  The Surviving Corporation will maintain the Company's

          existing officers' and directors' liability insurance ("D&O

          Insurance") in full force and effect without reduction of

          coverage for a period of seven years after the Effective Time,

          provided, however, that the Surviving Corporation will not be

          required to pay an annual premium therefor in excess of 250% of

          the last annual premium paid prior to the date hereof (the

          "Current Premium"), and, provided, further, however, that if the

          existing D&O Insurance expires, is terminated or cancelled during

          such seven-year period, the Surviving Corporation will use its

          best efforts to obtain as much D&O Insurance as can be obtained

          for the remainder of such period for a premium on an annualized

          basis not in excess of 250% of the Current Premium.

               5.9.  Additional Agreements.  Subject to the terms and
                     ---------------------

          conditions herein provided, each of the parties will use its

          reasonable best efforts to take promptly, or cause to be taken 


                                          50


<PAGE>


          promptly, all actions and to do promptly, or cause to be done

          promptly, all things necessary, proper or advisable under

          applicable laws and regulations to consummate and make effective

          the transactions contemplated by this Agreement, including using

          its reasonable best efforts to obtain all necessary actions or

          non-actions, extensions, waivers, consents and approvals from all

          applicable Governmental Entities, effecting all necessary

          registrations and filings (including without limitation filings

          under the HSR Act) and obtaining any required contractual

          consents, subject, however, to any required vote of the

          stockholders of the Company.  If, at any time after the Effective

          Time, the Surviving Corporation considers or is advised that any

          deeds, bills of sale, assignments, assurances or any other

          actions or things are necessary or desirable to vest, perfect or

          confirm of record or otherwise in the Surviving Corporation its

          right, title or interest in, to or under any of the rights,

          properties or assets of either of the Constituent Corporations

          acquired or to be acquired by the Surviving Corporation as a

          result of, or in connection with the Merger or otherwise to carry

          out the purposes of this Agreement, the officers and directors of

          the Surviving Corporation will be authorized to execute and

          deliver, in the name and on behalf of each of the Constituent

          Corporations or otherwise, all such deeds, bills of sale,

          assignments and assurances and to take and do, in the name and on

          behalf of each of the Constituent Corporations or otherwise, all

          such other actions and things as may be necessary or desirable to

          vest, perfect or confirm any and all right, title and interest 


                                          51


<PAGE>


          in, to and under such rights, properties or assets in the

          Surviving Corporation or otherwise to carry out the purposes of

          this Agreement.

               5.10.  Compliance with Antitrust Laws.  Each of Parent and
                      ------------------------------

          the Company will use its reasonable best efforts to resolve such

          objections, if any, which may be asserted with respect to the

          Offer or the Merger under the antitrust laws.  In the event a

          suit is instituted challenging the Offer or the Merger as

          violative of the antitrust laws, each of Parent and the Company

          will use its best efforts to resist or resolve such suit.  Parent

          and the Company will use their reasonable best efforts to take

          such action as may be required (a) by the Antitrust Division of

          the Department of Justice or the Federal Trade Commission in

          order to resolve such objections as either of them may have to

          the Offer or the Merger under the antitrust laws or (b) by any

          federal or state court of the United States, in any suit brought

          by a private party or Governmental Entity challenging the Offer

          or the Merger as violative of the antitrust laws, in order to

          avoid the entry of, or to effect the dissolution of, any

          injunction, temporary restraining order or other order which has

          the effect of preventing the consummation of the Offer or the

          Merger.

               5.11.  Publicity.  The initial press release announcing this
                      ---------

          Agreement will be a joint press release and thereafter the

          Company and Parent will consult with each other in issuing any

          press releases or otherwise making public statements with respect

          to the transactions contemplated hereby and in making any filings


                                          52


<PAGE>


          with any Governmental Entity or with any national securities

          exchange with respect thereto, and will not issue any such press

          release or make any such public statement prior to such

          consultation except as may be required by law or by obligation

          pursuant to any listing agreement with any national securities

          exchange or the National Association of Securities Dealers or any

          rules or regulations of a foreign securities exchange upon which

          the securities are traded.

               5.12.  Notice of Actions and Proceedings.  The Company will
                      ---------------------------------

          promptly notify Parent of any actions, suits, claims,

          investigations or proceedings commenced or, to the knowledge of

          the executive officers of the Company, threatened in writing

          against, relating to or involving or otherwise affecting the

          Company or any of its subsidiaries which, if pending on the date

          hereof, would have been required to have been disclosed in

          writing pursuant to any Schedule required hereby or which relates

          to the consummation of the Offer or the Merger.

               5.13.  Notification of Certain Other Matters.  The Company
                      -------------------------------------

          will promptly notify Parent of:

                    (a)  any written notice or other written communication

          from any third party alleging that the consent of such third

          party is or may be required in connection with the transactions

          contemplated by this Agreement;

                    (b)  any written notice or other written communication

          from any Governmental Entity in connection with the transactions

          contemplated hereby; and 


                                          53


<PAGE>


                    (c)  any fact, development or occurrence that

          constitutes a material adverse effect on the business, financial

          condition or results of operations of the Company and its

          subsidiaries taken as a whole or is reasonably expected to result

          in such an effect.

               5.14.  Listing of Preferred Stock.  The Company will, and
                      --------------------------

          Parent will cause the Surviving Corporation to, use their

          respective reasonable efforts to continue the listing on the

          New York Stock Exchange of the shares of Preferred Stock which

          are currently listed on such Exchange or, if such shares are

          delisted, to cause such shares of Preferred Stock to be listed on

          another national securities exchange within the United States or

          admitted to trading on the National Association of Securities

          Dealers Automated Quotation System and on other organized

          securities markets in such foreign jurisdictions in which such

          shares are presently traded.  Notwithstanding anything in this

          Agreement to the contrary, the obligations of the Company and

          Parent under this Section 5.14 will survive the Effective Time

          with respect to any series of Preferred Stock until such time as

          the aggregate market value of all outstanding shares of such

          series is less than $2 million or the number of outstanding

          shares of such series is less than 100,000.

               5.15.  Certain Obligations of Parent.  In the event that the
                      -----------------------------

          Company is unable to meet its obligations as they come due,

          whether at maturity or otherwise, including solely for the

          purposes of this Section 5.15 dividend and redemption payments

          with respect to the Preferred Stock, Parent will capitalize the 


                                          54


<PAGE>


          Company in an amount necessary to permit the Company to meet such

          obligations, provided that Parent's aggregate obligation under

          this Section 5.15 shall be (a) limited to the amount of debt

          service obligations under "Tranche 1" of the loan agreement

          contemplated by the Commitment and, to the extent "Tranche 1" is

          replaced by "Tranche 2 and/or Tranche 3" under the Commitment,

          the amount of debt service obligations under such "Tranche 2

          and/or Tranche 3," and (b) reduced by the amount, if any, of

          capital contributions received by the Company after the Effective

          Time and the net proceeds of any sale by the Company of common

          stock or non-redeemable preferred stock after the Effective Time. 

          Notwithstanding anything in this Agreement to the contrary, the

          obligations of Parent under this Section 5.15 will survive until

          the ninth anniversary of the Effective Time.  

                                   VI.  CONDITIONS
                                        ----------

               6.1.  Conditions.  The obligations of Parent, Purchaser and
                     ----------

          the Company to consummate the Merger are subject to the

          satisfaction, at or before the Effective Time, of each of the

          following conditions, as applicable thereto:

                    6.1.1.  Stockholder Approval.  The holders of the
                            --------------------

               Voting Stock shall have duly adopted this Agreement.

                    6.1.2.  Purchase of Shares of Voting Stock.  Purchaser
                            ----------------------------------

               shall have accepted for payment shares of Common Stock

               pursuant to the Offer.

                    6.1.3.  Injunctions; Illegality.  The consummation of
                            -----------------------

               the Merger shall not be precluded or materially restricted

               by any order, injunction, decree or ruling of a court of 


                                          55


<PAGE>


               competent jurisdiction or Governmental Entity (each party

               agreeing to use its reasonable best efforts to rectify any

               such occurrence), and there shall not have been any action

               taken or any statute, rule or regulation enacted,

               promulgated or deemed applicable to the Merger by any

               Governmental Entity which prevents or materially restricts

               the consummation of the Merger or that would make the

               acquisition or holding by Parent or its subsidiaries of the

               shares of Common Stock or shares of common stock of the

               Surviving Corporation illegal.

                    6.1.4.  HSR Act.  Any applicable waiting period under
                            -------

               the HSR Act shall have expired or been terminated.

               6.2.  Parent Obligations.  The obligations of Parent and
                     ------------------

          Purchaser to consummate the Merger are subject to the

          satisfaction at or prior to the Effective Time of the additional

          conditions that (a) the Company in all material respects shall

          have satisfied and complied with each of the covenants of the

          Company contained herein, (b) the representations and warranties

          of the Company contained in this Agreement shall be true and

          correct in all material respects as of the date of this Agreement

          and as of the Closing Date (except for representations and

          warranties made as of a specified date, which shall be true and

          correct in all material respects as of such specified date) and

          (c) Purchaser and Parent shall have the right to draw down funds

          under the loan agreement contemplated by the Commitment.


                                          56


<PAGE>


                                 VII.  MISCELLANEOUS
                                       -------------

               7.1.  Termination.  This Agreement may be terminated and the
                     -----------

          Merger contemplated hereby may be abandoned (a) by the mutual

          consent of the Boards of Directors of Parent, Purchaser and the

          Company; (b) by Parent and Purchaser, on the one hand, or the

          Company, on the other hand, if the Offer expires or is terminated

          or withdrawn in accordance with the terms hereof without any

          shares of Common Stock being purchased thereunder or the Offer is

          terminated, or has not been commenced in accordance with the

          terms hereof by the close of business on March 7, 1995, or if

          Purchaser has not purchased shares of Common Stock validly

          tendered and not withdrawn pursuant to the Offer in accordance

          with the terms hereof within 75 calendar days after commencement

          of the Offer; provided, however, that the party seeking to

          terminate this Agreement pursuant to this Section 7.1(b) is not

          in material breach of this Agreement; (c) by the Company, if

          Parent or Purchaser materially breaches any of the

          representations and warranties or covenants contained in this

          Agreement, or by Parent and Purchaser if the Company materially

          breaches any of the representations and warranties or covenants

          contained in this Agreement; (d) by either Parent and Purchaser

          or the Company, if the Merger is not consummated prior to

          June 30, 1995; provided, however, that the right to terminate

          this Agreement under this Section 7.1(d) will not be available to

          any party whose failure to fulfill any obligation under this

          Agreement has been the cause of, or resulted in, the failure of

          the Effective Time to occur on or before such date; (e) by either


                                          57


<PAGE>


          Parent and Purchaser, on the one hand, or the Company, on the

          other hand, if either one (or any permitted assignee hereunder)

          is restrained, enjoined or otherwise precluded by an order,

          decree, ruling or injunction (other than an order or injunction

          issued on a temporary or preliminary basis) of a court, domestic

          or foreign, of competent jurisdiction or other Governmental

          Entity from consummating the Merger or making the acquisition or

          holding by Parent or its subsidiaries of the shares of Common

          Stock or shares of common stock of the Surviving Corporation

          illegal and all means of appeal and all appeals from such order

          decree, ruling, injunction or other action have been finally

          exhausted; (f) by the Company if the Board of Directors of the

          Company determines that it will not recommend acceptance of the

          Offer and approval of the Merger by the Company's stockholders

          (or if such recommendation is withdrawn) based upon the advice of

          outside counsel that such action is necessary for the Board of

          Directors to comply with its fiduciary duties to stockholders

          under applicable law; and (g) by Parent and Purchaser, if (i) the

          Board of Directors of the Company shall not have recommended or

          shall withdraw, modify or change its recommendation relating to

          the Merger or the Offer in a manner materially adverse to Parent

          or shall have resolved to do any of the foregoing; (ii) the Board

          of Directors of the Company shall have recommended to the

          stockholders of the Company that they accept or approve, or the

          Company or any of its subsidiaries shall have agreed to engage

          in, a Competing Transaction; or (iii) any Person shall have

          acquired beneficial ownership or the right to acquire beneficial 


                                          58


<PAGE>


          ownership or any "group" (as such term is defined under Section

          13(d) of the Exchange Act and the rules and regulations

          promulgated thereunder) shall have been formed which beneficially

          owns, or has the right to acquire "beneficial ownership" (as

          defined in the Rights Agreement) of, more than 20% of the then-

          outstanding shares of Common Stock of the Company.  For the

          purposes of this Agreement, "Competing Transaction" means any of

          the following involving the Company or any of its subsidiaries:

          (i) any merger, consolidation, share exchange, business

          combination or other similar transaction except for such of the

          foregoing as to which the only parties are the Company or one or

          more subsidiaries of the Company; (ii) any sale, lease, exchange,

          mortgage, pledge, transfer or other disposition of the assets of

          the Company or any of its subsidiaries constituting 5% or more of

          the consolidated assets of the Company or accounting for 5% or

          more of the consolidated revenues of the Company in a single

          transaction or series of related transactions involving any

          Person other than the Company or one or more subsidiaries of the

          Company; or (iii) any tender or exchange offer for 20% or more of

          the outstanding shares of Voting Stock or the filing of a

          registration statement under the Securities Act in connection

          therewith.  In the event of any termination and abandonment

          pursuant to this Section 7.1, no party hereto (or any of its

          directors or officers) will have any liability or further

          obligation to any other party to this Agreement, except for

          obligations under the last sentences of Sections 1.1 and 1.3, the

          second sentence of Section 5.4 and all of Section 7.10 hereof and


                                          59


<PAGE>


          except that nothing herein will relieve any party from liability

          for any breach of this Agreement.  Any action by the Company to

          terminate this Agreement pursuant to this Section 7.1 will

          require only the approval of a majority of the directors of the

          Company then in office who are directors of the Company on the

          date hereof, or persons nominated or elected to succeed such

          directors by a majority of such directors (the "Continuing

          Directors").

               7.2.  Non-Survival of Representations, Warranties and
                     -----------------------------------------------

          Agreements.  The representations and warranties or agreements in
          ----------

          this Agreement will terminate at the Effective Time or the

          earlier termination of this Agreement pursuant to Section 7.1, as

          the case may be, provided, however, that if the Merger is

          consummated, Sections 2.6, 5.3, 5.8, 5.9, 5.14 and 5.15 hereof

          will survive the Effective Time to the extent contemplated by

          such Sections, and provided further, however, that the last

          sentences of Sections 1.1 and 1.3, the second sentence of

          Section 5.4 and all of Section 7.10 hereof will in all events

          survive any termination of this Agreement.

               7.3.  Waiver and Amendment.  Subject to applicable
                     --------------------

          provisions of the DGCL, any provision of this Agreement may be

          waived at any time by the party which is, or whose stockholders

          are, entitled to the benefits thereof, and this Agreement may be

          amended or supplemented at any time, provided that no amendment

          will be made after any stockholder approval of the adoption of

          the Merger Agreement which reduces the Merger Price without

          further approval of the holders of the Voting Stock, provided 


                                          60


<PAGE>


          further that any action by the Company to waive or amend any

          provision of this Agreement will require the approval of a

          majority of the Continuing Directors.  No such waiver, amendment

          or supplement will be effective unless in a writing which makes

          express reference to this Section 7.3 and is signed by the party

          or parties sought to be bound thereby.

               7.4.  Entire Agreement.  This Agreement contains the entire
                     ----------------

          agreement among Parent, Purchaser and the Company with respect to

          the Offer, the Merger and the other transactions contemplated

          hereby and thereby, and supersedes all prior agreements among the

          parties with respect to such matters other than, prior to the

          Effective Time, the Confidentiality Agreement.

               7.5.  Applicable Law.  This Agreement will be governed by
                     --------------

          and construed in accordance with the laws of the State of

          Delaware, without giving effect in the principles of conflict of

          laws of that State.

               7.6.  Interpretation.  For purposes of this Agreement, a
                     --------------

          "subsidiary" of a corporation means any corporation or other

          legal entity (including without limitation partnerships or

          limited liability companies) more than 50% of the outstanding

          voting securities or similar rights of which are directly or

          indirectly owned by such other corporation and "Person" means an

          individual or legal entity.  The descriptive headings contained

          herein are for convenience and reference only and will not affect

          in any way the meaning or interpretation of this Agreement.

               7.7.  Notices.  All notices and other communications
                     -------

          hereunder will be in writing and will be given by delivery (and 


                                          61


<PAGE>


          will be deemed to have been duly given upon receipt) in person,

          by cable, facsimile transmission, telegram, telex or other

          standard form of telecommunications, or by registered or

          certified mail, postage prepaid, return receipt requested,

          addressed as follows:

               If to the Company to:

                    Maxus Energy Corporation
                    717 North Harwood Street
                    Dallas, Texas 75201
                    Attention:  General Counsel
                    Telephone:  214/953-2000
                    Telecopy:   214/979-1986

               With a copy to:

                    Jones, Day, Reavis & Pogue
                    599 Lexington Avenue, 22nd Floor
                    New York, New York  10022
                    Attention:  Robert A. Profusek, Esq.
                    Telephone:  212/326-3800
                    Telecopy:   212/755-7306

               If to Parent or Purchaser to:

                    YPF Sociedad Anonima
                    Avenida Pte. Roque Saenz Pena 777
                    Buenos Aires 1364, Argentina
                    Attention:  President
                    Telephone:  011-541-329-5705
                    Telecopy:   011-541-329-5704

               With a copy to:

                    Andrews & Kurth L.L.P.
                    4200 Texas Commerce Tower
                    Houston, Texas 77002
                    Attention:  P. Dexter Peacock, Esq.
                    Telephone:  713/220-4354
                    Telecopy:  713/220-3690


          or to such other address as any party may have furnished to the

          other parties in writing in accordance herewith.


                                          62


<PAGE>


               7.8.  Counterparts.  This Agreement may be executed in any
                     ------------

          number of counterparts, each of which will be deemed to be an

          original but all of which together will constitute but one

          agreement.

               7.9.  Parties in Interest; Assignment.  Except for
                     -------------------------------

          Sections 2.6 and 5.3 hereof (which are intended to be for the

          benefit of directors and Senior Executives to the extent

          contemplated thereby and their beneficiaries, and may be enforced

          by such persons) and Section 5.8 hereof (which is intended to be

          for the benefit of directors, officers, agents and employees to

          the extent contemplated thereby and their beneficiaries, and may

          be enforced by such persons), this Agreement is not intended to

          nor will it confer upon any other person (other than the parties

          hereto) any rights or remedies.  Except as otherwise expressly

          provided herein, this Agreement is binding upon and is solely for

          the benefit of the parties hereto and their respective

          successors, legal representatives and assigns.  Purchaser will

          have the right (a) to assign to Parent or any direct or indirect

          wholly owned subsidiary of Parent any and all rights and

          obligations of Purchaser under this Agreement, including without

          limitation the right to substitute in its place Parent or such a

          subsidiary as one of the constituent corporations in the Merger

          (such subsidiary assuming all of the obligations of Purchaser in

          connection with the Merger), provided that any such assignment

          will not relieve Parent or Purchaser from any of its obligations

          hereunder, and (b) to transfer to Parent or to any direct or

          indirect wholly owned subsidiary of Parent the right to purchase 


                                          63


<PAGE>


          shares of Common Stock tendered pursuant to the Offer, provided

          that any such transfer will not relieve Purchaser from any of its

          obligations hereunder.

               7.10.  Expenses; Termination Fee.  Whether or not the Offer
                      -------------------------

          or Merger is consummated, all costs and expenses incurred in

          connection with the Offer, this Agreement and the transactions

          contemplated hereby will be paid by the party incurring such

          costs and expenses, provided, however, that (a) in the event of a

          termination of this Agreement by the Company pursuant to

          Section 7.1(f) or by Parent and Purchaser pursuant to

          Section 7.1(g)(i) or (ii) hereof, the Company will be obligated

          to promptly pay to Purchaser $20 million in cash, and (b) in the

          event of a termination of this Agreement by the Company or by

          Parent if at the date of such termination any condition to the

          funding of the loans contemplated by the Commitment has not been

          satisfied, provided that at such time no other condition to

          Parent's obligation to consummate the Offer or the Merger, as the

          case may be, is unsatisfied (other than the failure to meet the

          Minimum Share Condition as a result of the failure to obtain such

          funding), Parent and Purchaser, jointly and severally, will be

          obligated to promptly pay to the Company $20 million in cash.

               7.11.  Obligation of Parent.  Whenever this Agreement
                      --------------------

          requires Purchaser to take any action, such requirement will be

          deemed to include an undertaking on the part of Parent to cause

          Purchaser to take such action.

               7.12.  Enforcement of the Agreement.  The parties hereto
                      ----------------------------

          agree that irreparable damage would occur in the event that any 


                                          64


<PAGE>


          of the provisions of this Agreement were not performed in

          accordance with their specific terms or were otherwise breached. 

          It is accordingly agreed that the parties hereto will be entitled

          to an injunction or injunctions to prevent breaches of this

          Agreement and to enforce specifically the terms and provisions

          hereof in any court of the United States or any State of the

          United States having jurisdiction, this being in addition to any

          other remedy to which they are entitled at law or in equity,

          including without limitation under Section 7.10 hereof.

               7.13.  Severability.  If any term or other provision of this
                      ------------

          Agreement is invalid, illegal or incapable of being enforced by

          any rule of law or public policy, all other terms and provisions

          of this Agreement will nevertheless remain in full force and

          effect so long as the economic or legal substance of the

          transactions contemplated hereby is not affected in any manner

          adverse to any party hereto.  Upon any such determination that

          any term or other provision is invalid, illegal or incapable of

          being enforced, the parties hereto will negotiate in good faith

          to modify this Agreement so as to effect the original intent of

          the parties as closely as possible in an acceptable manner to the

          end that the transactions contemplated by this Agreement are

          consummated to the extent possible.

               7.14.  Consent to Jurisdiction and Service of Process. 
                      ----------------------------------------------

          (a) Parent consents to the non-exclusive jurisdiction of any

          court of the State of New York or any United States federal court

          sitting in the Borough of Manhattan, New York City, New York,

          United States, and any appellate court from any thereof, and 


                                          65


<PAGE>


          waives any immunity from the jurisdiction of such courts over any

          suit, action or proceeding that may be brought in connection with

          this Agreement.  Parent irrevocably waives, to the fullest extent

          permitted by law, any objection to any suit, action or proceeding

          that may be brought in connection with this Agreement in such

          courts whether on the grounds of venue, residence or domicile or

          on the ground that any such suit, action or proceeding has been

          brought in an inconvenient forum.  Parent agrees that final

          judgment in any such suit, action or proceeding brought in such

          court shall be conclusive and binding upon Parent and may be

          enforced in any court to the jurisdiction of which Parent is

          subject by suit upon such judgment; provided that service of

          process is effected upon Parent in the manner provided in this

          Agreement.  Notwithstanding the foregoing, any suit, action or

          proceeding brought in connection with this Agreement may be

          instituted in any competent court in Argentina.

                    (b)  Parent agrees that service of all writs, process

          and summonses in any suit, action or proceeding brought in

          connection with this Agreement against Parent in any court

          sitting in the Borough of Manhattan, New York City, New York,

          United States may be made upon CT Corporation System at

          1633 Broadway, New York, New York 10019, whom Parent irrevocably

          appoints as its authorized agent for service of process.  Parent

          represents and warrants that CT  Corporation System has agreed to

          act as Parent's agent for service of process.  Parent agrees that

          such appointment shall be irrevocable so long as this Agreement

          shall remain in effect or until the irrevocable appointment by 


                                          66


<PAGE>


          Parent of a successor in The City of New York as its authorized

          agent for such purpose and the acceptance of such appointment by

          such successor.  Parent further agrees to take any and all

          action, including the filing of any and all documents and

          instruments, that may be necessary to continue such appointment

          in full force and effect as aforesaid.  If CT Corporation System

          shall cease to be Parent's agent for service of process, Parent

          shall appoint without delay another such agent and provide prompt

          written notice to the Company, to the extent known to it, of such

          appointment.  With respect to any such action in any court of the

          State of New York or any United States federal court in the

          Borough of Manhattan, New York City, service of process upon CT

          Corporation System, as the authorized agent of Parent for service

          of process, and written notice of such service to Parent, shall

          be deemed, in every respect, effective service of process upon

          Parent.

                    (c)  Nothing in this Section 7.14 shall affect the

          right of any party to serve legal process in any other manner

          permitted by law or affect the right of any party to bring any

          action or proceeding against any other party or its property in

          the courts of other jurisdictions.


                                          67


<PAGE>


               IN WITNESS WHEREOF, the parties hereto have duly executed

          this Agreement.

          ATTEST:                           YPF SOCIEDAD ANONIMA


          By                                By                            
             ---------------------------       ---------------------------


                                            YPF ACQUISITION CORP.


          By                                By                            
             ---------------------------       ---------------------------


                                            MAXUS ENERGY CORPORATION


          By                                By                            
             ---------------------------       ---------------------------


                                          68


<PAGE>


                                                                  Exhibit A
                                                                  ---------


                               CONDITIONS TO THE OFFER
                               -----------------------


                    Notwithstanding any other provision of the Offer,

          Purchaser shall not be required to accept for payment, purchase

          or pay for any shares of Common Stock tendered pursuant to the

          Offer (the "Shares"), and may postpone the acceptance for

          payment, the purchase of, and/or payment for Shares, and/or may,

          subject to the terms of the Agreement, amend or terminate the

          Offer if (i) the Minimum Share Condition has not been satisfied,

          (ii) the Company shall not have taken the steps necessary to

          redeem the Rights, (iii) the applicable waiting period under the

          HSR Act shall not have expired or been terminated, (iv) the

          closing of the loans in connection with the Offer shall not have

          occurred under the Loan Agreement contemplated by the commitment

          letter, dated February 24, 1995, addressed to Parent from The

          Chase Manhattan Bank (National Association), a copy of which has

          heretofore been delivered to the Company, or (v) at any time at

          or before payment for any Shares (whether or not any Shares have

          theretofore been accepted for payment or paid for pursuant to the

          Offer), any of the following events shall have occurred and be

          continuing:

                         (a)  there shall be in effect any temporary

                    restraining order, preliminary or final injunction or

                    other order or decree issued by any United States

                    federal or state court of competent jurisdiction or 


<PAGE>


                    United States federal or state governmental, regulatory

                    or administrative agency or authority, (1) enjoining,

                    restraining or otherwise prohibiting the Offer, the

                    Merger or the acquisition by Parent or Purchaser of

                    shares of Common Stock; (2) prohibiting or materially

                    limiting the ownership or operation by Parent or

                    Purchaser of all or any substantial portion of the

                    business or material assets of the Company and its

                    subsidiaries, taken as a whole, or, as a consequence of

                    the Offer, Merger or Parent or Purchaser's acquisition

                    of shares of Common Stock, of Parent or any of its

                    subsidiaries, or compelling Parent or Purchaser to

                    dispose of or to hold separate all or any material

                    portion of the business or material assets of the

                    Company and its subsidiaries, taken as a whole, or of

                    Parent or any of its subsidiaries, or imposing any

                    material limitation on the ability of Parent or

                    Purchaser to conduct such business or own such assets,

                    (3) imposing material limitations on the ability of

                    Parent or Purchaser (or any other affiliate of Parent)

                    to acquire or hold or to exercise full rights of

                    ownership of the shares of Common Stock, including

                    without limitation the right to vote the shares of

                    Common Stock purchased by them on all matters properly

                    presented to the stockholders of the Company, or

                    (4) requiring material divestitures by Parent or

                    Purchaser or any of their subsidiaries or affiliates of


                                         -2-


<PAGE>


                    any Shares, as a consequence of the Offer, Merger or

                    Parent or Purchaser's acquisition of shares of Common

                    Stock; or 

                         (b)  there shall be any statute, rule, regulation

                    or order promulgated, enacted, entered or deemed

                    applicable to the Offer or the Merger, or any other

                    action shall have been taken, by any Governmental

                    Entity that is reasonably likely to result in any of

                    the consequences referred to in clauses (1) through (4)

                    of paragraph (a) above; or

                         (c)  there shall have occurred (1) any general

                    suspension of trading in, or limitation on prices for,

                    trading in securities on the New York Stock Exchange or

                    in the over-the-counter-market, (2) a declaration of a

                    banking moratorium or any limitation or suspension of

                    payments by United States authorities on the extension

                    of credit by United States lending institutions, (3) a

                    commencement of war, armed hostilities or other

                    international or national calamity directly or

                    indirectly involving the United States, or (4) in the

                    case of any of the foregoing existing at the time of

                    the commencement of the Offer, a material acceleration

                    or worsening thereof; or

                         (d)  it shall have been publicly disclosed or

                    Purchaser shall have learned that any Person shall have

                    entered into a definitive agreement or an agreement in

                    principle with the Company with respect to a tender 


                                         -3-


<PAGE>


                    offer or exchange offer for any shares of capital stock

                    of the Company (including without limitation the shares

                    of Common Stock) or a merger, consolidation or other

                    business combination or any acquisition or disposition

                    of a material amount of assets or any comparable event

                    with or involving the Company (other than such of the

                    foregoing as is permitted by the Agreement); or 

                         (e)  any of the representations and warranties of

                    the Company in the Agreement shall not have been, or

                    shall cease to be, true and correct in all material

                    respects (whether because of circumstances or events

                    occurring in whole or in part prior to, on or after the

                    date of the Agreement), or the Company shall have not

                    performed in all material respects the covenants to be

                    performed by it pursuant to the Agreement; or

                         (f)  the Agreement shall have been terminated by

                    the Company, on the one hand, or Parent and Purchaser,

                    on the other hand, in accordance with its terms or

                    Purchaser or Parent, on the one hand, and the Company,

                    on the other hand, shall have reached an agreement

                    providing for the termination of the Offer; or

                         (g)  the Company's Board of Directors shall have

                    failed to recommend and approve, or shall no longer

                    recommend and approve, the Offer or the adoption of the

                    Merger Agreement, or shall materially modify or amend

                    its recommendation and approval with respect thereto,

                    or shall have resolved to do any of the foregoing 


                                         -4-


<PAGE>


                    (except that the foregoing shall not apply to a

                    modification or amendment solely in the reasons for

                    such recommendation and approval so long as the Board

                    of Directors of the Company continues to recommend and

                    approve acceptance of the Offer and adoption of the

                    Merger Agreement by holders of Voting Stock); or

                         (h)  without limiting the generality or effect of

                    Paragraph (e) of this Section, except as disclosed to

                    Parent pursuant to the Agreement, there shall have been

                    any material adverse change in the business, financial

                    condition or results of operations of the Company and

                    its subsidiaries, taken as a whole;

          which, in the sole judgment of Purchaser, in any such case

          regardless of the circumstances (including any action or inaction

          by Purchaser or any of its affiliates other than a material

          breach by Purchaser or Parent of the Agreement) giving rise to

          any such condition, makes it inadvisable to proceed with the

          Offer or with such acceptance for payment or purchase of or

          payment for any of the Shares.

                    The foregoing conditions (i) may be asserted by

          Purchaser regardless of the circumstances (including any action

          or inaction by Purchaser or any of its affiliates other than a

          breach by Purchaser or Parent of the Agreement) giving rise to

          such condition and (ii) other than the Minimum Share Condition,

          are for the sole benefit of Purchaser and its affiliates.  The

          foregoing conditions, other than the Minimum Share Condition, may

          be waived by Purchaser in whole or in part at any time and from 


                                         -5-


<PAGE>


          time to time in its sole discretion.  The failure by Purchaser at

          any time to exercise any of the foregoing rights will not be

          deemed a waiver of any other rights and each such right will be

          deemed an ongoing right which may be asserted at any time and

          from time to time.


                                         -6-


<PAGE>


          I.  THE TENDER OFFER  . . . . . . . . . . . . . . . . . . . .   1
              ----------------

                    1.1.  The Offer . . . . . . . . . . . . . . . . . .   1
                          ---------

                    1.2.  Company Action  . . . . . . . . . . . . . . .   4
                          --------------

                    1.3.  Stockholder Lists . . . . . . . . . . . . . .   6
                          -----------------

                    1.4.  Board of Directors of the Company . . . . . .   6
                          ---------------------------------


          II.  THE MERGER . . . . . . . . . . . . . . . . . . . . . . .   8
               ----------

                              2.1.1.  Merger  . . . . . . . . . . . . .   8
                                      ------

                              2.1.2.  Effective Time  . . . . . . . . .   8
                                      --------------

                              2.1.3.  Effect of Merger  . . . . . . . .   9
                                      ----------------

                              2.1.4.  Conversion of Shares of Common
                                      ------------------------------

                         Stock  . . . . . . . . . . . . . . . . . . . .   9
                         -----

                    2.2.  Stockholders' Meeting of the Company  . . . .  11
                          ------------------------------------

                    2.3.  Consummation of the Merger  . . . . . . . . .  11
                          --------------------------

                    2.4.  Payment for Shares of Common Stock  . . . . .  12
                          ----------------------------------

                    2.5.  Closing of the Company's Transfer Books . . .  14
                          ---------------------------------------

                    2.6.  The Company Stock Options and Related
                          -------------------------------------

                    Matters . . . . . . . . . . . . . . . . . . . . . .  14
                    -------


          III.  REPRESENTATIONS AND WARRANTIES OF PARENT AND
                --------------------------------------------

               PURCHASER  . . . . . . . . . . . . . . . . . . . . . . .  15
               ---------

                    3.1.  Corporate Organization  . . . . . . . . . . .  15
                          ----------------------

                    3.2.  Authority . . . . . . . . . . . . . . . . . .  15
                          ---------

                    3.3.  Offer Documents . . . . . . . . . . . . . . .  16
                          ---------------

                    3.4.  Proxy Statement . . . . . . . . . . . . . . .  17
                          ---------------

                    3.5.  Fees  . . . . . . . . . . . . . . . . . . . .  17
                          ----


                                         -7-
<PAGE>


                    3.6.  Consents and Approvals; No Violation  . . . .  17
                          ------------------------------------

                    3.7.  Financing . . . . . . . . . . . . . . . . . .  19
                          ---------

                    3.8. Operations of the Company Following the
                         ---------------------------------------

                    Merger  . . . . . . . . . . . . . . . . . . . . . .  19
                    ------


          IV.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY  . . . . .  20
               ---------------------------------------------

                    4.1.  Corporate Organization  . . . . . . . . . . .  20
                          ----------------------

                    4.2.  Capitalization  . . . . . . . . . . . . . . .  21
                          --------------

                    4.3.  Authority . . . . . . . . . . . . . . . . . .  22
                          ---------

                    4.4.  Consents and Approvals; No Violation  . . . .  23
                          ------------------------------------

                    4.5.  Commission Filings  . . . . . . . . . . . . .  24
                          ------------------

                    4.6.  Absence of Certain Changes  . . . . . . . . .  25
                          --------------------------

                    4.7.  Litigation  . . . . . . . . . . . . . . . . .  26
                          ----------

                    4.8.  Compliance with Applicable Laws . . . . . . .  27
                          -------------------------------

                    4.9.  Fees  . . . . . . . . . . . . . . . . . . . .  28
                          ----

                    4.10.  Offer Documents  . . . . . . . . . . . . . .  28
                           ---------------

                    4.11.  Schedule 14D-9 . . . . . . . . . . . . . . .  28
                           --------------

                    4.12.  Proxy Statement  . . . . . . . . . . . . . .  29
                           ---------------

                    4.13.  Rights . . . . . . . . . . . . . . . . . . .  29
                           ------

                    4.14.  Certain Actions. . . . . . . . . . . . . . .  30
                           ---------------

                    4.15.  Subsidiaries . . . . . . . . . . . . . . . .  30
                           ------------

                    4.16.  No Default . . . . . . . . . . . . . . . . .  32
                           ----------

                    4.17.  Taxes  . . . . . . . . . . . . . . . . . . .  32
                           -----

                    4.18.  Insurance  . . . . . . . . . . . . . . . . .  35
                           ---------

                    4.19.  Benefit Plans  . . . . . . . . . . . . . . .  36
                           -------------

                    4.20.  Labor Matters  . . . . . . . . . . . . . . .  38
                           -------------

                    4.21.  Certain Environmental Matters  . . . . . . .  40
                           -----------------------------


                                         -8-
<PAGE>


          V.  COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  40
              ---------

                    5.1.  Acquisition Proposals . . . . . . . . . . . .  40
                          ---------------------

                    5.2.  Interim Operations  . . . . . . . . . . . . .  41
                          ------------------

                              5.2.1.  Conduct of Business . . . . . . .  41
                                      -------------------

                              5.2.2.  Certificate and By-Laws . . . . .  42
                                      -----------------------

                              5.2.3.  Capital Stock . . . . . . . . . .  42
                                      -------------

                              5.2.4.  Dividends . . . . . . . . . . . .  43
                                      ---------

                              5.2.5.  Debt  . . . . . . . . . . . . . .  43
                                      ----

                    5.3.  Employee Plans, Compensation, Etc.  . . . . .  44
                          ----------------------------------

                    5.4.  Access and Information  . . . . . . . . . . .  46
                          ----------------------

                    5.5.  Certain Filings, Consents and Arrangements  .  48
                          ------------------------------------------

                    5.6.  State Takeover Statutes . . . . . . . . . . .  48
                          -----------------------

                    5.7.  Proxy Statement . . . . . . . . . . . . . . .  48
                          ---------------

                    5.8.  Indemnification and Insurance . . . . . . . .  49
                          -----------------------------

                    5.9.  Additional Agreements . . . . . . . . . . . .  50
                          ---------------------

                    5.10.  Compliance with Antitrust Laws . . . . . . .  52
                           ------------------------------

                    5.11.  Publicity  . . . . . . . . . . . . . . . . .  52
                           ---------

                    5.12.  Notice of Actions and Proceedings  . . . . .  53
                           ---------------------------------

                    5.13.  Notification of Certain Other Matters  . . .  53
                           -------------------------------------

                    5.14.  Listing of Preferred Stock . . . . . . . . .  54
                           --------------------------

                    5.15.  Certain Obligations of Parent  . . . . . . .  54
                           -----------------------------


          VI.  CONDITIONS . . . . . . . . . . . . . . . . . . . . . . .  55
               ----------

                    6.1.  Conditions  . . . . . . . . . . . . . . . . .  55
                          ----------

                              6.1.1.  Stockholder Approval  . . . . . .  55
                                      --------------------

                              6.1.2.  Purchase of Shares of Voting
                                      ----------------------------

                         Stock  . . . . . . . . . . . . . . . . . . . .  55
                         -----


                                         -9-
<PAGE>


                              6.1.3.  Injunctions; Illegality . . . . .  55
                                      -----------------------

                              6.1.4.  HSR Act . . . . . . . . . . . . .  56
                                      -------

                    6.2.  Parent Obligations. . . . . . . . . . . . . .  56
                          ------------------


          VII.  MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . .  57
                -------------

                    7.1.  Termination . . . . . . . . . . . . . . . . .  57
                          -----------

                    7.2.  Non-Survival of Representations, Warranties
                          -------------------------------------------

                    and Agreements  . . . . . . . . . . . . . . . . . .  60
                    --------------

                    7.3.  Waiver and Amendment  . . . . . . . . . . . .  60
                          --------------------

                    7.4.  Entire Agreement  . . . . . . . . . . . . . .  61
                          ----------------

                    7.5.  Applicable Law  . . . . . . . . . . . . . . .  61
                          --------------

                    7.6.  Interpretation  . . . . . . . . . . . . . . .  61
                          --------------

                    7.7.  Notices . . . . . . . . . . . . . . . . . . .  61
                          -------

                    7.8.  Counterparts  . . . . . . . . . . . . . . . .  63
                          ------------

                    7.9.  Parties in Interest; Assignment . . . . . . .  63
                          -------------------------------

                    7.10.  Expenses; Termination Fee  . . . . . . . . .  64
                           -------------------------

                    7.11.  Obligation of Parent . . . . . . . . . . . .  64
                           --------------------

                    7.12.  Enforcement of the Agreement . . . . . . . .  64
                           ----------------------------

                    7.13.  Severability . . . . . . . . . . . . . . . .  65
                           ------------

               7.14.  Consent to Jurisdiction and Service of Process  .  65
                      ----------------------------------------------


                                         -10-





                                                                Exhibit D


                                 GUARANTEE AGREEMENT


                    THIS GUARANTEE AGREEMENT, dated February 28, 1995, of
          YPF Sociedad Anonima, a corporation (sociedad anonima) organized
          and existing under the laws of the Republic of Argentina, with
          principal executive offices located at Avenida Pte. R. Saenz Pena
          777, 1364 Buenos Aires, Argentina (hereinafter called the
          "Guarantor"), in favor of The Prudential Insurance Company of
          America (hereinafter called "Prudential") and Prudential's
          successors and assigns who are the registered owners of shares of
          $9.75 Cumulative Convertible Preferred Stock (hereinafter called
          the "Shares") of Maxus Energy Corporation, a corporation
          organized and existing under the laws of the State of Delaware
          (hereinafter called the "Company") acquired in compliance with
          Section 3 of the 1995 Agreement hereinafter referred to
          (Prudential and all such successors and assigns being hereinafter
          sometimes collectively called the "Obligees").

                                       RECITALS

                    On February 1, 1987 Prudential and the Company entered
          into a Preferred Stock Purchase Agreement, dated February 1, 1987
          (hereinafter called the "Original Stock Purchase Agreement")
          providing for the issuance to Prudential of 3,000,000 of the
          Shares.  The Original Stock Purchase Agreement was subsequently
          amended by agreements between the Company and Prudential dated
          February 8, 1987 (hereinafter called the "First Amendment"), and
          April 12, 1990 (hereinafter called the "Existing Second Stock
          Purchase Agreement"), and pursuant to the Existing Second Stock
          Purchase Agreement (a) the Company reacquired from Prudential
          500,000 of the Shares, and (b) Prudential executed and delivered
          a Waiver of Certain Equity Offering Rights dated as of April 12,
          1990 and a Waiver of Certain Rights Relating to $9.75 Preferred
          Stock dated June 5, 1990 (hereinafter collectively called the
          "Waivers").  Prudential is currently the registered owner of all
          the outstanding Shares.

                    In contemplation of certain Transactions (as said term
          is defined in the 1995 Agreement hereinafter referred to),
          including a cash tender offer by a wholly-owned subsidiary of the
          Guarantor for shares of Common Stock of the Company (the "Tender
          Offer") as a result of which the Company would become a
          subsidiary of the Guarantor, the Company and Prudential are
          entering into an agreement (the "1995 Agreement"), making
          provision, among other things, with respect to (a) certain
          consents and waivers by Prudential in connection with the
          Transactions, (b) certain further amendments of the Original
          Stock Purchase Agreement, as previously amended, (c) certain
          amendments of the Existing Second Stock Purchase Agreement, (d)
          consent to certain amendments of, or, at the request of the
          Company, waivers with respect to, the Certificate of Designations
          relating to the Shares, and (e) the termination of the
          Registration Rights Agreement referred to in the Original Stock
          Purchase Agreement. The Original Stock Purchase Agreement, as
          amended as aforesaid (including by the 1995 Agreement), and as
          the same may be further amended in accordance with the provisions
          thereof and be in effect from time to time is hereinafter called
          the "Stock


<PAGE>


          Purchase Agreement"; the Existing Second Stock Purchase
          Agreement, as amended by the 1995 Agreement, and as the same may
          be further amended in accordance with the provisions thereof and
          be in effect from time to time is hereinafter called the "Second
          Stock Purchase Agreement"); and the Certificate of Designations
          with respect to the Shares, as certain provisions thereof have
          heretofore been waived and as amended as contemplated by the 1995
          Agreement, and as the same may be further amended in accordance
          with the terms thereof and be in effect from time to time, is
          hereinafter called the "Certificate of Designations").  

                    The 1995 Agreement provides that it is a condition to
          the effectiveness of the consent and waivers of Prudential with
          respect to the Transactions, and of the amendments of the
          Original Stock Purchase Agreement and the Existing Stock Purchase
          Agreement, and of the consent of Prudential to the amendments of,
          or, at the request of the Company, waivers with respect to, the
          Certificate of Designations, and of the termination of the
          Registration Rights Agreement, therein provided for, that the
          Guarantor execute and deliver to Prudential a guarantee agreement
          substantially in the form hereof, and the Guarantor is willing to
          give its guarantee of the Obligations (as hereinbelow defined) on
          the terms and conditions hereinbelow set forth.

                    NOW, THEREFORE, this Agreement 

                                 W I T N E S S E T H:

                    For and in consideration of the execution and delivery
          by Prudential of the 1995 Agreement, and the taking by Prudential
          of the actions specified therein to be taken by it, the Guarantor
          does hereby covenant and agree, for the benefit of Prudential and
          each of the other Obligees from time to time, as follows:

                    1.   Guarantee.  The Guarantor unconditionally and
                         ---------
          irrevocably guarantees to each Obligee the due and punctual
          payment and performance of each and every obligation of the
          Company to such Obligee (hereinafter collectively called the
          "Obligations") under (a) the Stock Purchase Agreement, (b) the
          Second Stock Purchase Agreement, and (c) the Certificate of
          Designations (the instruments referred to in the foregoing
          clauses (a), (b) and (c) being sometimes hereinafter called the
          "Guaranteed Instruments"), in each case (as to monetary
          Obligations) when and as the same shall become due and payable
          (without regard, in the case of dividend and redemption payments
          on the Shares, to whether the Company shall have funds legally
          available therefor, the Board of Directors of the Company shall
          have taken any action with respect thereto, or the Company shall
          otherwise be under any legal disability in respect of making such
          payments), or (as to non-monetary Obligations) when performance
          thereof shall be due, in accordance with the terms of the Stock
          Purchase Agreement, the Second Stock Purchase Agreement or the
          Certificate of Designations, as the case may be.  In the case of
          the failure of the Company punctually to make any such payment or
          to render any such performance, the Guarantor hereby
          unconditionally agrees to cause any such payment to be made or
          performance to be rendered, as the case may be, punctually when
          and as the same shall become due, all as if such payment or
          performance were made or rendered by the Company.

                    2.   Certain Waivers; Unconditionality.  The Guarantor
                         ---------------------------------
          waives (to the extent permitted by applicable law) notice of
          acceptance of the guaranties set forth herein, of any


                                          2


<PAGE>


          action taken or omitted in reliance hereon or of any default in
          the payment or in the performance of any Obligations guaranteed
          hereby.

                    The Guarantor hereby agrees that its obligations under
          this Agreement (in respect of monetary Obligations) constitute a
          present and continuing guarantee of payment and not of
          collectibility, and that its obligations hereunder with respect
          to payment and performance of the Obligations shall be absolute
          and unconditional, and to the extent permitted by applicable law,
          shall not be subject to any counterclaim, setoff, deduction or
          defense based upon any claim the Guarantor may have against the
          Company, any Obligee or any other person, and shall remain in
          full force and effect without regard to, and shall not be
          released, discharged or in any way affected or impaired by any
          thing, event, happening, matter, circumstance or condition
          whatsoever (whether or not the Guarantor shall have any knowledge
          or notice thereof or consent thereto), including, without
          limitation: (a) any amendment or modification of or supplement to
          any provision of this Agreement or any of the Guaranteed
          Instruments, or any assignment or transfer thereof or of any
          Shares to another Obligee, including, without limitation, any
          renewal or extension of the terms of payment of any monetary
          Obligation or the granting of time in respect of any payment
          thereof, or any furnishing or acceptance of security or any
          release of any security so furnished or accepted for any such
          Obligation; (b) any waiver, consent, extension, granting of time,
          forbearance, indulgence or other action or inaction under or in
          respect of this Agreement or any of the Guaranteed Instruments,
          or any exercise or nonexercise of any right, remedy or power in
          respect hereof or thereof; (c) any bankruptcy, insolvency,
          reorganization, arrangement, readjustment, composition,
          liquidation or similar proceedings with respect to the Company,
          or any other person, or the properties or creditors of any of
          them; (d) any invalidity or any unenforceability of, or any
          misrepresentation, irregularity or other defect in, this
          Agreement or any of the Guaranteed Instruments or any other
          agreement; (e) any transfer of any assets to or from the Company,
          including, without limitation, any transfer or purported transfer
          to the Company from any person, any invalidity, illegality of, or
          inability to enforce, any such transfer or purported transfer,
          any consolidation or merger of the Company with or into any other
          corporation or entity, or any change whatsoever in the objects,
          capital structure, constitution or business of the Company; (f)
          any failure on the part of the Company or any other person to
          perform or comply with any term of any of the Guaranteed
          Instruments, this Agreement or any other agreement; (g) any suit
          or other action brought by any stockholders or creditors of, or
          by, the Guarantor or the Company or any other person for any
          reason whatsoever, including, without limitation, any suit or
          action in any way attacking or involving any issue, manner or
          thing in respect of this Agreement, any of the Guaranteed
          Instruments or any other agreement; (h) any lack or limitation of
          status or of power, incapacity or disability of the Guarantor,
          the Company or of any director or agent of either of them; (i)
          there not being funds legally available to the Company on any
          Quarterly Dividend Payment Date (as defined in the Certificate of
          Designations) for the payment on such date of a dividend on the
          Shares, or on any February 1 for the making on such date of any
          redemption payment in respect of the Shares as required by
          Section 5(b) of the Certificate of Designations; (j) the Board of
          Directors of the Company not having taken any action with respect
          thereto; or (k) any other thing, event, happening, matter,
          circumstance or condition whatsoever, not in any way limited to
          the foregoing.

                    3.   Subrogation; Limitations Thereon.  The Guarantor
                         --------------------------------
          hereby agrees that if it shall make any payment or render any
          performance in respect of any Obligation, it shall,


                                          3


<PAGE>


          to the extent permitted by applicable law, be subrogated to the
          rights of the Obligee to which such payment was made or
          performance rendered; provided, however, that such rights of
                                --------  -------
          subrogation and all indebtedness and claims arising therefrom
          shall be, and the Guarantor agrees that it is, and shall at all
          times be, in all respects subordinate and junior to the prior
          payment in full, in cash, of all monetary Obligations which shall
          have become due in respect of which payment was not made and the
          prior performance in full of all non-monetary Obligations which
          shall have become due in respect of which performance not
          rendered.  The Guarantor agrees that the foregoing right of
          subrogation shall not be effective until, and that it shall not
          be entitled to receive any payment, under any condition, in
          respect of any such subrogated claim unless and until, all
          Obligations the payment or performance of which shall have become
          due shall have been paid in full in cash or funds for their
          payment shall have been duly and sufficiently provided, or such
          performance shall have been duly and fully rendered, as the case
          may be.

                    4.   Further Waivers; Reinstatement; Expenses.  The
                         ----------------------------------------
          Guarantor waives any right it may have to require any Obligee to
          proceed against the Company or against any other party prior to
          making any claim under this Agreement.  The Guarantor agrees that
          its guaranties herein contained shall be automatically reinstated
          if and to the extent that for any reason any payment by or on
          behalf of the Company or the Guarantor is rescinded or must be
          otherwise restored by any Obligee, whether as a result of any
          proceedings in bankruptcy or reorganization or otherwise.

                    Without limiting the generality of the foregoing, if
          the Obligees are prevented by applicable law from exercising
          remedies otherwise available to them in respect of any Guaranteed
          Instrument, to the fullest extent permitted by applicable law the
          Obligees shall be entitled to receive hereunder from the
          Guarantor, upon demand therefor, the payment or performance which
          would have otherwise been due had such remedies been exercised.

                    The Guarantor shall pay each Obligee such further
          amounts as shall be sufficient to cover the reasonable costs and
          expenses of collecting any sums due under this Agreement or any
          of the Guaranteed Instruments, or of otherwise enforcing the
          same, including, in any case, reasonable compensation to its
          attorneys for all services rendered in that connection.

                    5.   Representations and Warranties.  The Guarantor
                         ------------------------------
          represents and warrants that (a) it is a sociedad anonima
          (corporation) duly existing and incorporated in the City of
          Buenos Aires, Argentina, with a term of duration expiring on June
          15, 2093, and registered with the Public Registry of Commerce on
          June 15, 1993 under number 5109, Book 13, Volume A of Local By-
          Laws; (b) it has all requisite corporate power to execute,
          deliver and perform its obligations under this Agreement and,
          when executed and delivered, this Agreement will constitute its
          valid and binding obligation under the laws of Argentina, to the
          extent applicable hereto, enforceable in accordance with its
          terms , except as limited by applicable bankruptcy, insolvency,
          reorganization, moratorium, and other similar laws affecting the
          rights of creditors generally; and (c) such execution, delivery
          and performance do not require any consent or approval of any
          governmental authority of or in Argentina, except such as has
          been obtained and is valid and sufficient for its purpose, and do
          not constitute a breach or violation of, or a default under, any
          provision of (i) its organic documents, (ii) any law, rule,
          regulation or decree, or any order, writ or judgment, of any 


                                          4


<PAGE>


          court or governmental authority of or in Argentina binding upon
          it, or to which it is subject, or (iii) any agreement, or other
          instrument to which it is a party, or to which it or its
          properties are subject.

                    6.   Consent to Jurisdiction and Service of Process. 
                         ----------------------------------------------
          (a) The Guarantor consents to the non-exclusive jurisdiction of
          any court of the State of New York or any United States federal
          court sitting in the Borough of Manhattan, New York City, New
          York, United States, and any appellate court from any thereof,
          and waives any immunity from the jurisdiction of such courts over
          any suit, action or proceeding that may be brought in connection
          with this Agreement. The Guarantor irrevocably waives, to the
          fullest extent permitted by law, any objection to any suit,
          action, or proceeding that may be brought in connection with this
          Agreement in such courts whether on the grounds of venue,
          residence or domicile or on the ground that any such suit, action
          or proceeding has been brought in an inconvenient forum.  The
          Guarantor agrees that final judgment in any such suit, action or
          proceeding brought in such court shall be conclusive and binding
          upon the Guarantor and may be enforced in any court to the
          jurisdiction of which the Guarantor is subject by suit upon such
          judgment; provided that service of process is effected upon the
                    --------
          Guarantor in the manner provided in this Agreement. 
          Notwithstanding the foregoing, any suit, action or proceeding
          brought in connection with this Agreement may be instituted in
          any competent court in Argentina.

                         (b)  The Guarantor agrees that service of all
          writs, process and summonses in any suit, action or proceeding
          brought in connection with this Agreement against the Guarantor
          in any court sitting in the Borough of Manhattan, New York City
          may be made upon CT Corporation System at 1633 Broadway, New
          York, New York 10019, whom the Guarantor irrevocably appoints as
          its authorized agent for service of process.  The Guarantor
          represents and warrants that CT Corporation System has agreed to
          act as the Guarantor's agent for service of process.  The
          Guarantor agrees that such appointment shall be irrevocable so
          long as this Agreement shall remain in effect or until the
          irrevocable appointment by the Guarantor of a successor in The
          City of New York as its authorized agent for such purpose and the
          acceptance of such appointment by such successor.  The Guarantor
          further agrees to take any and all action, including the filing
          of any and all documents and instruments, that may be necessary
          to continue such appointment in full force and effect as
          aforesaid.  If CT Corporation System shall cease to be the
          Guarantor's agent for service of process, the Guarantor shall
          appoint without delay another such agent and provide prompt
          written notice to the Obligees, to the extent known to it, of
          such appointment.  With respect to any such action in any court
          of the State of New York or any United States federal court in
          the Borough of Manhattan, New York City, service of process upon
          CT Corporation System, as the authorized agent of the Guarantor
          for service of process, and written notice of such service to the
          Guarantor, shall be deemed, in every respect, effective service
          of process upon the Guarantor.

                         (c)  Nothing in this paragraph 6 shall affect the
          right of any party to serve legal process in any other manner
          permitted by law or affect the right of any party to bring any
          action or proceeding against any other party or its property in
          the courts of other jurisdictions.


                                          5


<PAGE>


                    7.   Payments of Additional Amounts.  All payments in
                         ------------------------------
          respect of this Agreement, including, without limitation,
          payments of dividend amounts and redemption amounts, shall be
          made by the Guarantor without withholding or deduction for or on
          account of any present or future taxes, duties, levies, or other
          governmental charges of whatever nature in effect on the date of
          this Agreement or imposed or established in the future by or on
          behalf of Argentina or any authority in Argentina.  In the event
          any such taxes or liabilities are so imposed or established, the
          Guarantor shall pay such additional amounts as may be necessary
          in order that the net amounts receivable by the Obligees after
          any withholding or deduction in respect of such tax or liability
          shall equal the amounts that would have been receivable in
          respect of this Agreement in the absence of such withholding or
          deduction; except that no such additional amounts will be payable
          with respect to any withholding or deduction on any security to,
          or to a third party on behalf of, an Obligee for or on account of
          any such taxes or liabilities that have been imposed by reason of
          the Obligee being a resident of Argentina or having some
          connection with Argentina other than the mere holding of the
          Shares or the receipt of dividend payments in respect thereof. 
          Furthermore, no additional amounts shall be paid with respect to
          any payment under this Agreement to an Obligee that is a
          fiduciary or partnership or other than the sole beneficial owner
          of such payment to the extent that a beneficiary or settlor with
          respect to such fiduciary or a member of such partnership or
          beneficial owner would not have been entitled to receive the
          additional amounts had such beneficiary, settlor, member or
          beneficial owner been the Obligee.

                    8.   Governing Law.  This Agreement is being delivered
                         -------------
          and is intended to be performed in the State of New York, and
          shall be construed and enforced in accordance with, and the
          rights of the parties shall be governed by, the law of such
          State.

                    9.   Effectiveness.  This Agreement shall take effect
                         -------------
          upon (and concurrently with) the merger into the Company of the
          wholly-owned subsidiary of the Guarantor which shall have
          acquired shares of the Common Stock of the Company in the Tender
          Offer.

                    10.  Survival of Representations and Warranties.  All
                         ------------------------------------------
          representations and warranties contained herein or made in
          writing by the Guarantor or Prudential in connection herewith
          shall survive the execution and delivery of this Agreement and
          any disposition of the Shares.

                    11.  Successors and Assigns.  All covenants and
                         ----------------------
          agreements in this Agreement contained shall bind and inure to
          the benefit of (a) the Guarantor and its successors and assigns
          and (b) the Obligees.  This Agreement shall not be assignable, in
          whole or in part by any Obligee, except to another Obligee,
          without the prior written consent of the Guarantor.

                    12.  Notices.  All communications provided for
                         -------
          hereunder shall be sent by first class mail and (a) if to
          Prudential, addressed to it in care of Prudential Capital Group,
          1201 Elm Street, Suite 4900, Dallas, Texas 75270, Attention:
          Managing Director, or to such other address as it may have
          designated to the Guarantor and the Company in writing, (b) if to
          any other Obligee, addressed to such Obligee at the address of
          such Obligee in the stock record books of the Company, (c) if to
          the Guarantor, at its address set forth in the prefatory
          paragraph of this Agreement, Attention: President, or to such
          other address as it shall have designated to the Obligees in
          writing, and (d) if to the Company, addressed to it at: 717 North
          Harwood Street, Dallas, Texas 75201, Attention: Secretary, or to
          such other address or


                                          6


<PAGE>


          addresses as the Company may have designated in writing to you
          and each other holder of any of the Shares at the time
          outstanding.

                    13.  Descriptive Headings.  The descriptive headings of
                         --------------------
          the several paragraphs of this Agreement are inserted for
          convenience only and do not constitute a part of this Agreement.

                    14.  Acknowledgment; Counterparts.  By its execution of
                         ----------------------------
          the acknowledgment set forth at the foot hereof Prudential
          acknowledges the execution and delivery to it of this Agreement
          as provided in the 1995 Agreement, and confirms the effectiveness
          of all consents and waivers contained in such agreement
          effectiveness of which is conditioned upon such execution and
          delivery.  This Agreement and the acknowledgment hereof may be
          executed in two or more counterparts, each of which shall be
          deemed an original, and it shall not be necessary in making proof
          of this Agreement to produce or account for more than one such
          counterpart.

                    IN WITNESS WHEREOF, the Guarantor has caused this
          Agreement to be executed by its officer thereunto duly
          authorized, all as of the day and year first above written.


                                             YPF SOCIEDAD ANONIMA


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

          Execution and delivery hereof
          by the Guarantor acknowledged, 
          and effectiveness of certain provisions 
          of the 1995 Agreement confirmed, 
          as set forth in Section 14 above, 
          as of the day and year first above written:

          THE PRUDENTIAL INSURANCE 
            COMPANY OF AMERICA


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


                                          7





                                                                Exhibit E


                               MAXUS ENERGY CORPORATION
                               717 North Harwood Street
                                 Dallas, Texas 75201


                                              February 28, 1995

          The Prudential Insurance Company 
             of America
          Three Gateway Center
          100 Mulberry Street
          Newark, New Jersey 07102

          Gentlemen:

                    On February 1, 1987, the undersigned, MAXUS ENERGY
          CORPORATION (the "Company"), a Delaware corporation, and you
          entered into a Preferred Stock Purchase Agreement, dated February
          1, 1987 (the "Original Stock Purchase Agreement"), providing for
          the issuance to you of 3,000,000 shares of $9.75 Cumulative
          Convertible Preferred Stock of the Company (the "Shares").  The
          Original Stock Purchase Agreement was subsequently amended by
          agreements between the undersigned and you dated February 8, 1987
          (the "First Amendment"), and April 12, 1990 (the "Second Stock
          Purchase Agreement"), and pursuant to the Second Stock Purchase
          Agreement (a) the Company reacquired from you 500,000 of the
          Shares, and (b) you executed and delivered a Waiver of Certain
          Equity Offering Rights dated as of April 12, 1990 and a Waiver of
          Certain Rights Relating to $9.75 Preferred Stock dated June 5,
          1990 (collectively the "Waivers"), relating to certain provisions
          of the Certificate of Designations, the Registration Rights
          Agreement and the Company's Preferred Stock Purchase Rights Plan. 
          The Original Stock Purchase Agreement, as amended as aforesaid,
          is herein called the "Stock Purchase Agreement," and except as
          otherwise expressly provided herein, all capitalized terms used
          herein and defined in the Stock Purchase Agreement or the Second
          Stock Purchase Agreement, as the case may be, are used herein as
          so defined.

                    The undersigned has advised you that it contemplates
          entering into the Transactions, including a cash tender offer by
          a wholly-owned subsidiary of Gaucho for shares of the Common
          Stock of the Company (the "Tender Offer"), as a result of which
          the Company would become a subsidiary of Gaucho, and in
          connection therewith has obtained the agreement of Gaucho,
          effective upon the merger into the Company of such wholly-owned
          subsidiary of Gaucho, to guarantee the Company's obligations
          under the Certificate of Designations, the Stock Purchase
          Agreement and the Second Stock Purchase Agreement (each as
          heretofore and hereby amended or to be amended or certain
          provisions thereof heretofore and hereby waived or to be waived,
          as the case may be), such guarantee to be substantially in the
          form annexed hereto as Exhibit A (the "Gaucho Guarantee").  In
          consideration of the execution and delivery to you of the Gaucho
          Guarantee, you have agreed to consent to the Transactions and
          waive all provisions of applicable agreements and other
          instruments necessary in connection therewith, effective upon the
          execution and delivery of


<PAGE>


          this Agreement and the execution and delivery to you of the
          Gaucho Guarantee, and to further amendments of or, with respect
          to the Certificate of Designations, amendments or permanent
          waivers of (and, in anticipation of the effectiveness of such
          amendments and/or permanent waivers, temporary waivers of certain
          provisions of) the Stock Purchase Agreement, the Second Stock
          Purchase Agreement and the Certificate of Designations, a waiver
          of certain rights under the Company's Preferred Stock Purchase
          Rights Plan, and termination of the Registration Rights
          Agreement, such amendments and/or permanent waivers and
          termination to become effective upon the merger into the Company
          of the wholly-owned subsidiary of Gaucho, and such temporary
          waivers to become effective immediately, all as more fully
          hereinafter set forth.

                    NOW, THEREFORE, in consideration of the foregoing, and
          of the mutual covenants and agreements herein contained, the
          Company and you agree as follows:

                    1.   Consent to Transactions.  Notwithstanding any
                         -----------------------
          provisions of the Certificate of Designations, the Stock Purchase
          Agreement, the Second Stock Purchase Agreement, the Registration
          Rights Agreement, or of any other agreement or instrument which
          would prohibit, restrict, impose conditions upon, or otherwise
          adversely affect, the Company's consummation of all or any
          portion of the Transactions, or pursuant to which you do or may
          have the right to consent to or impose conditions upon the
          Company's consummation of all or any portion of the Transactions,
          you do hereby unconditionally and irrevocably waive your rights
          under any such provisions (including, without limitation, Section
          3(b) of the Certificate of Designations) and any appraisal rights
          in connection with the Transactions, and grant your unqualified,
          unconditional and irrevocable consent to the Company's
          consummation of the Transactions, such waiver and consent to
          become and be effective upon execution and delivery of this
          Agreement and the execution and delivery to you of the Gaucho
          Guarantee.

                    2.   Amendments, etc.
                         ---------------

                    2A.  Amendments of Stock Purchase Agreement.  You and
                         --------------------------------------
          the Company agree that, effective upon the effectiveness of the
          Gaucho Guarantee, the Stock Purchase Agreement shall be amended
          to delete therefrom paragraphs 5F, 5H, 7A, 7B, 7C and 7D thereof.

                    2B.  Amendments of Second Stock Purchase Agreement. 
                         ---------------------------------------------
          You and the Company agree that, effective upon the effectiveness
          of the Gaucho Guarantee, the Second Stock Purchase Agreement
          shall be amended

                         (a)  to delete therefrom paragraphs 5A, 5B, 5C(b),
                    5D(a) and 5D(b) thereof; and

                         (b)  to delete therefrom paragraphs 7A, 7B and 7C
                    thereof.

                    2C.  Amendment or Waiver of Certificate of
                         -------------------------------------
          Designations; Certain Waivers.  Without limitation of paragraph
          -----------------------------
          1, Prudential and the Company hereby agree effective upon the
          effectiveness of the Gaucho Guarantee, to the amendment of the
          Certificate of Designations with respect to all outstanding
          Shares to delete therefrom Section 2(b), Section


                                          2


<PAGE>


          3(b), Section 5(a) , Section 5(c), Section 8 and Section 9
          thereof, and all defined terms, if any, used only in one or more
          of such deleted Sections, and to effect any other modifications
          thereof (including but not limited to deletion of cross-
          references to deleted provisions) necessary or appropriate to
          give effect to the aforementioned amendments.  Alternatively, in
          lieu of such amendments, if the Company shall so request, you and
          the Company shall execute and deliver unconditional, irrevocable
          and permanent waivers (i) in the case of such waivers to be
          executed and delivered by you, of any and all rights of the
          holders of Shares under Section 2(b), Section 3(b), Section 8 and
          Section 9 of the Certificate of Designations, (ii) in the case of
          such waivers to be executed and delivered by the Company, of any
          and all rights of the Company under Section 5(a) and Section 5(c)
          of the Certificate of Designations, and (iii) in the case of such
          waivers to be executed and delivered by you and the Company, of
          any other provisions of the Certificate of Designations necessary
          to give effect to the intent of the foregoing waivers, all such
          waivers specified in clauses (i), (ii) and (iii) of this sentence
          to be effective upon the effectiveness of the Gaucho Guarantee. 
          In furtherance thereof, effective upon the execution and delivery
          hereof and execution and delivery to you of the Gaucho Guarantee,
          you agree that until such amendment of, or permanent waivers with
          respect to, the Certificate of Designations shall become
          effective (but subject to the following proviso) you will take no
          action to exercise, and do hereby unconditionally and irrevocably
          waive, any right to receive increased dividends pursuant to said
          Section 2(b), or to convert any Shares into Common Stock of the
          Company pursuant to said Section 8; and (subject to the following
          proviso) without limitation as to time you unconditionally and
          irrevocably waive any rights attributable to the Convertible
          Shares you would otherwise have with respect to Rights granted
          under the Company's Preferred Stock Purchase Rights Plan,
          including the right to receive any redemption payment with
          respect thereto (you having previously and effectively waived
          such rights with respect to the Conversion Waiver Shares under
          date of June 5, 1990); provided, however, that the waivers in
          this sentence shall become null and void and of no force or
          effect, ab initio and as if the same had never been granted, if
          the Transactions shall not have been consummated and said
          amendment of, or waivers with respect to, the Certificate of
          Designations shall not have become effective, on or before June
          30, 1995.

                    2D.  Termination of Registration Rights Agreement.  You
                         --------------------------------------------
          and the Company agree that, effective upon the effectiveness of
          the Gaucho Guarantee, the Registration Rights Agreement shall be
          terminated and be of no further force or effect, and agree that,
          effective upon the execution and delivery hereof and until such
          termination shall become effective (but subject to the following
          proviso), you will take no action to exercise, and do hereby
          unconditionally and irrevocably waive, any right to obtain
          registration of any Registrable Securities (as defined in the
          Registration Rights Agreement) pursuant thereto; provided,
          however, that the waiver in this paragraph 2D shall become null
          and void and of no force or effect, ab initio and as if the same
          had never been granted, if the Transactions shall not have been
          consummated and such termination shall not have become effective,
          on or before June 30, 1995. 

                    3.   Representations and Agreements of the Holder.  You
                         --------------------------------------------
          represent and warrant that this Agreement has been duly
          authorized, executed and delivered by you, the performance hereof
          is within your corporate powers and this Agreement constitutes
          your valid and binding obligation, enforceable in accordance with
          its terms.


                                          3


<PAGE>


                    You hereby agree that if you shall sell, transfer or
          otherwise dispose of any Shares, any transferee, as a condition
          of the transfer shall, by written agreement satisfactory to the
          Company and its counsel delivered to the Company at least five
          business days prior to the proposed effective date of such
          transfer, expressly assume all of your obligations, waivers,
          duties and covenants under the Stock Purchase Agreement, the
          Second Stock Purchase Agreement and this Agreement (as each may
          have been amended or modified, or any provisions thereof waived,
          and shall at such time be in effect), including without
          limitation your obligations under this paragraph 3, as to the
          Shares to be so transferred.

                    Concurrently with the execution and delivery hereof,
          the certificates currently evidencing the Conversion Waiver
          Shares and the Convertible Shares are being surrendered against
          delivery to you of one or more certificates evidencing a like
          aggregate number of Shares which shall not contain the legends
          provided for in paragraph 7A of the Second Stock Purchase
          Agreement but which, in addition to any other legend placed upon
          such certificate(s), shall bear a legend to the following effect:

                    "The securities represented by this certificate are
                    subject to certain provisions of an agreement, dated
                    April 12, 1990, and the provisions of an agreement,
                    dated February 28, 1995, each between the Corporation
                    and The Prudential Insurance Company of America, the
                    terms of which require the holder hereof to execute
                    certain unconditional and irrevocable waivers of
                    certain rights of the holder, including without
                    limitation the right to convert these securities into
                    Common Stock of the Corporation, to receive increased
                    dividends in certain circumstances and to vote in
                    respect of certain matters, and, under certain
                    circumstances, to consent to amendments of, or, at the
                    request of the Company, waivers with respect to, the
                    Certificate of Designations and amendments of certain
                    agreements to which the Corporation is a party.  Copies
                    of such agreements are on file at the principal
                    executive offices of the Corporation."

          If the Gaucho Guarantee, and the amendments and waivers of
          various instruments provided in paragraphs 2A, 2B and 2C hereof,
          shall not have become effective, on or before June 30, 1995, on
          the next succeeding business day the Company shall deliver to
          you, against delivery to it of the certificates evidencing the
          Shares issued as provided hereinabove in this paragraph 3,
          replacement certificates for a like aggregate number of Shares
          bearing the legends required by the Second Stock Purchase
          Agreement (disregarding the amendments thereof provided in said
          paragraph 2B hereof).  You represent and warrant that you are as
          of the date hereof the sole record and beneficial owner of
          1,250,000 Shares (of which 375,000 Shares are Conversion Waiver
          Shares and 875,000 Shares are Convertible Shares).

                    4.   Effect of Amendments.  If any provision of the
                         --------------------
          Waivers shall be inconsistent with any provision hereof, or of
          the Stock Purchase Agreement or the Second Stock Purchase
          Agreement as amended hereby, the provisions of this Agreement, or
          the Stock Purchase Agreement or the Second Stock Purchase
          Agreement (as so amended), as the case may be, shall govern.  As
          amended hereby, the Stock Purchase Agreement and the Second Stock
          Purchase Agreement, and (subject to the preceding sentence) the
          Waivers, shall be and remain in full force and effect.


                                          4


<PAGE>


                    5.   Definitions.  In addition to the definitions
                         -----------
          contained and referred to in the preamble of this Agreement, for
          the purpose of this Agreement the following terms shall have the
          meanings specified with respect thereto below:

                    "Gaucho" shall mean YPF Sociedad Anonima, a corporation
                     ------
                    (sociedad anonima) organized and existing under the
                    laws of the Republic of Argentina. 

                    "Transactions" shall mean and include a tender offer
                     ------------
                    for the Company's Common Stock as a result of which, if
                    successful, the Company will become a subsidiary of
                    Gaucho, the subsequent merger of Gaucho's wholly-owned
                    subsidiary that is the holder of a majority of the
                    outstanding shares of common stock of the Company into
                    the Company, and the incurrence of not in excess of
                    $600,000,000 aggregate principal amount of indebtedness
                    by the Company and/or its subsidiaries, a portion of
                    which may be secured by liens upon the Common Stock of
                    the Company acquired in such tender offer and/or upon
                    assets of the Company's and/or its subsidiaries, and
                    certain related transactions (including the repayment
                    and making of loans and advances, and/or payment of
                    dividends) among the Company and its subsidiaries.

                    6.   Miscellaneous.
                         -------------

                    6A.  Restructuring Fee.  The Company agrees to pay you
                         -----------------
          a restructuring fee of $250,000 upon the effectiveness of the
          Gaucho Guarantee.  The obligation of the Company under this
          paragraph 6A shall survive the transfer or redemption of any
          Shares.

                    6B.  Consent to Amendments.  This Agreement may be
                         ---------------------
          amended with the consent of the Company and the Company may take
          any action herein prohibited, or omit to perform any act herein
          required to be performed by it, only if the Company shall have
          obtained the written consent to such amendment, action or
          omission to act of the holder or holders of not less than 66-2/3%
          of the Shares at the time outstanding and each holder of the
          Shares at the time or thereafter outstanding shall be bound by
          any consent authorized by this paragraph 6B.  The Company shall
          promptly send copies of any amendment, consent or waiver (and any
          request for any such amendment, consent or waiver) relating to
          this Agreement to you and each other Institutional Holder then
          holding any of the Shares and, to the extent practicable, shall
          consult with you and each other Institutional Holder then holding
          any of the Shares in connection with each such amendment, consent
          and waiver.  No course of dealing between the Company and the
          holder of any Shares nor any delay in exercising any rights
          hereunder shall operate as a waiver of any rights of any holder
          of such Shares.

                    6C.  Survival of Representations and Warranties.  All
                         ------------------------------------------
          representations and warranties contained herein or made in
          writing by the Company or you in connection herewith shall
          survive the execution and delivery of this Agreement and any
          disposition of the Shares.

                    6D.  Successors and Assigns. All covenants and
                         ----------------------
          agreements in this Agreement contained by or on behalf of either
          of the parties hereto shall bind and inure to the benefit of the
          Company and its successors and assigns and you and your
          successors and assigns to the


                                          5


<PAGE>


          extent they are the registered owners of Shares acquired in
          compliance with Section 3 of this Agreement.

                    6E.  Notices.  All communications provided for
                         -------
          hereunder shall be sent by first class mail and (a) if to you,
          addressed to you at the address set forth by you for such
          communications on Schedule I hereto, or to such other address as
          you may have designated to the Company in writing, (b) if to any
          other holder of Shares, addressed to such holder at the address
          of such holder in the stock record books of the Company, and (c)
          if to the Company, addressed to it at: 717 North Harwood Street,
          Dallas, Texas 75201, Attention: Secretary, or to such other
                               ---------
          address or addresses as the Company may have designated in
          writing to you and each other holder of any of the Shares at the
          time outstanding.

                    6F.  Descriptive Headings.  The descriptive headings of
                         --------------------
          the several paragraphs of this Agreement are inserted for
          convenience only and do not constitute a part of this Agreement.

                    6G.  Governing Law.  This Agreement is being delivered
                         -------------
          and is intended to be performed in the State of Delaware, and
          shall be construed and enforced in accordance with, and the
          rights of the parties shall be governed by, the law of such
          state.

                    6H.  Counterparts.  This Agreement may be executed in
                         ------------
          two or more counterparts, each of which shall be deemed an
          original, and it shall not be necessary in making proof of this
          Agreement to produce or account for more than one such
          counterpart.

                    If you are in agreement with the foregoing, please sign
          the form of acceptance on the enclosed counterpart of this letter
          and return the same to the undersigned, whereupon this letter
          shall become a binding agreement between you and the undersigned.


                                             Very truly yours,

                                             MAXUS ENERGY CORPORATION


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


          The foregoing Agreement is 
          hereby accepted as of the date 
          first above written:

          THE PRUDENTIAL INSURANCE
            COMPANY OF AMERICA 


                                          6


<PAGE>


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


                                          7




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