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                                                                    Exhibit 4.14

                               FIRST AMENDMENT TO
                           COOPER CAMERON CORPORATION
                  SUPPLEMENTAL EXCESS DEFINED CONTRIBUTION PLAN

     WHEREAS, COOPER CAMERON CORPORATION (the "Company") has heretofore adopted
the COOPER CAMERON CORPORATION SUPPLEMENTAL EXCESS DEFINED CONTRIBUTION PLAN
(the "Plan") for the benefit of the eligible employees of the Employer (as
defined in the Plan); and

     WHEREAS, the Company desires to amend the Plan;

     NOW, THEREFORE, in consideration of the premises, the Plan shall be and is
hereby amended as follows, effective as of April 1, 1996:

     1. The references to "Section 401(a)(17) or Section 415" in the first
"WHEREAS" clause and in Article II of the Plan shall be deleted and the
references "Section 401(a)(17), 401(k)(3), 401(m), 402(g)(1) or 415" shall be
substituted therefor.

     2. The reference to "Cooper Cameron Corporation Management Incentive
Compensation Deferral Plan" in Section 1.1(g) of the Plan shall be deleted and
the reference "Cooper Cameron Corporation Compensation Deferral Plan" shall be
substituted therefor.

     3. The references to "Sections 401(a)(17) and 415" in Section 3.1(a) and
(b) of the Plan shall be deleted and the references "Section 401(a)(17),
401(k)(3), 401(m), 402(g)(1) and 415" shall be substituted therefor.

     4. The following shall be added to Section 3.1 of the Plan:

     "Notwithstanding the foregoing, the credits pursuant to paragraph (a) above
     respecting the provisions of Sections 401(a)(17), 401(m), and 415 of the
     Code and pursuant to paragraph (b) above are contingent upon such Member
     electing the maximum cash or deferred contributions under the Cooper
     Cameron Savings Plan pursuant to Section 402(g) of the Code or as permitted
     under the terms of the Cooper Cameron Savings Plan."

     5. The references to "Sections 401(a)(17) and 415" in Section 3.2 of the
Plan shall be deleted and the references "Section 401(a)(17), 401(k)(3),
402(g)(1) and 415" shall be substituted therefor.

     6. The reference to "6%" in Section 3.2 of the Plan shall be deleted and
the reference "10%" shall be substituted therefor.

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     7. The following shall be added after the phrase "as of the last day of
each month" in the second sentence of Section 3.3 of the Plan:

     "preceding April 1, 1996,"

     8. The reference to "Supplemental Matching and Supplemental Basic Accounts"
in the first sentence of Section 5.1 of the Plan shall be deleted and the
reference "Supplemental Matching, Supplemental Basic and Supplemental Post-Tax
Accounts" shall be substituted therefor.

     9. The reference to "Section 3.3" in the second sentence of Section 5.1 of
the Plan shall be deleted and the reference "Section 3.4" shall be substituted
therefor.

     10. The first sentence of Section 5.2 of the Plan shall be deleted and the
following shall be substituted therefor:

     "The benefits payable under the Plan from a Participant's Supplemental
     Matching, Supplemental Basic and Supplemental Post-Tax Accounts shall be
     paid to the Participant, or in the event of his death to his Beneficiary,
     in one lump sum payment; provided, however, the Compensation Committee of
     the Board may, in its sole discretion, direct that such benefits be paid to
     or on behalf of a Participant to the same recipient(s) in the same manner
     and form as, and coincident with, the payment of the benefits of such
     Participant under the Cooper Cameron Savings Plan."

     10. As amended hereby, the Plan is specifically ratified and reaffirmed.

     EXECUTED at Houston, Texas, this 20th day of February, 1996.

                                                 COOPER CAMERON CORPORATION


                                                 By: /s/ Franklin Myers
                                                     ---------------------------
                                                     Name:  Franklin Myers
                                                     Title: Sr. V.P.

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