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                                                                   EXHIBIT 10.52
                                AMENDMENT NO. 4
                                      TO
               VASTAR RESOURCES, INC. CAPITAL ACCUMULATION PLAN
                          __________________________


Pursuant to the power of amendment reserved therein, the Vastar Resources, Inc.
Capital Accumulation Plan (the "Plan") is hereby amended effective as of July 1,
1997:


Paragraph 8.1 of the Plan is amended to read as follows:

"8.1 Termination of Employment
     (a)  If a Member's membership in the Plan is terminated due to disability,
          termination of employment for any other reason except death, or as the
          result of a sale described in Subparagraphs 2.4(a)(ii) or (iii), the
          Member shall receive all items in the Member's Account.  Each Member
          shall be fully vested at all times in all items in the Member's
          Account, whether the same be derived from Elective Deferrals,
          transferred amounts, or Company contributions, or earnings thereon.

     (b)  Upon the election of the Member who has terminated employment, all
          items in a Member's Account shall be distributed to the Member.  With
          respect to a Member who does not request a distribution:

          (i)    Notwithstanding anything to the contrary in this Paragraph 8.1
                 and subject to the provisions of Paragraph 8.7, a Member's
                 Account shall be distributed the later of age 65, or 12
                 months following termination of membership under Subparagraph
                 8.1(a);

          (ii)   In the case of the Member's death prior to final distribution,
                 the Member's Account shall be distributed in accordance with
                 Paragraph 8.2 of the Plan; and

          (iii)  No loans or hardship withdrawals may be taken following
                 termination of employment or disability.

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     (c)  Notwithstanding anything to the contrary in this Paragraph 8.1, all
          items in the Account of a Member who has terminated employment, and
          whose Account balance is $3,500 or less, shall be distributed 12
          months following the Member's termination of membership, unless the
          Member elects an earlier distribution date.

     (d)  Notwithstanding anything in the Plan to the contrary, when a Member
          elects to receive all items in the Member's Account and, in
          conjunction therewith, directs that items in his or her Account be
          converted pursuant to Paragraph 6.4 or 6.5, the conversion shall be
          transacted on the first transaction date under the Plan following the
          Administrator's receipt of a request for distribution."



Executed this 30th day of December, 1997.


ATTEST                                      VASTAR RESOURCES, INC.



BY: /s/ JONATHAN D. EDELFELT                    By: /s/ JEFFREY M. BENDER
    ------------------------                        ---------------------
    JONATHAN D. EDELFELT                            JEFFREY M. BENDER
    Associate Secretary                             Vice President
                                                    Human Resources

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