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                                                                    EXHIBIT 10.7

                     AMENDMENTS TO THE REVISED INCENTIVE
                               COMPENSATION PLAN
                          (Effective January 24, 2000)

Section 4. Administration is amended to the following:

          "The Committee shall administer the Plan.  The acts of a majority of
          the members present at any meeting at which a quorum is present and
          acts unanimously approved in writing by the Committee shall be deemed
          the acts of the Committee.   The Committee may conduct meetings in
          person or by telephone.  The Committee may, in its discretion,
          delegate the authority to grant Awards under the Plan for Employees
          other than executive officers to a committee of the Board of Directors
          of the Company.

          No member of the Committee, while serving as such, shall be eligible
          to receive an Award under the Plan.  The Committee shall have the
          authority, subject to the provisions of the Plan, to establish, adopt,
          or revise such rules and regulations and to make all such
          determinations relating to the Plan as it May deem necessary or
          advisable in the administration of the Plan.  The Committee's
          interpretation of the Plan or any Awards granted pursuant thereto and
          all decisions and determinations by the Committee with respect to the
          Plan shall be final, binding and conclusive on all parties."

Section 6. Payment and Deferral of Awards is amended by changing the second
sentence thereof to read in its entirety as follows:

          "An Award may be paid all or in part as Restricted Stock (a
          "Restricted Stock Award") as determined by the Committee or pursuant
          to an annual election of the recipient under such terms as the
          Committee may establish."<PAGE>

                                                                   EXHIBIT 10.18

                          UNOCAL EMPLOYMENT AGREEMENT

     This employment agreement (the "Agreement") is made effective as of July
28, 1998 by and between Unocal Corporation, a Delaware corporation (the
"Company") and Roger C. Beach, Chief Executive Officer and Chairman of the Board
of Directors ("Employee").

     In consideration of the mutual promises and agreements set forth herein,
the Company and Employee agree as follows:

1.   Term.
     ----

     1.1  The term of this Agreement (the "Term") shall commence on July 28,
1998 and shall be for three years, subject to earlier termination in accordance
with the provisions of Section 4 hereinbelow.  If the Agreement has not been
subject to early termination in accordance with the provisions of Section 4
hereinbelow, beginning on July 28, 1998 and on each day thereafter, the Term
shall automatically be extended for an additional day unless the Company
notifies Employee in writing that it does not wish to further extend the Term.
Notwithstanding the foregoing, this Agreement shall end automatically and
without additional notice on the date of the Company's Annual Meeting of
Shareholders that next follows the date of Employee's sixty-fifth (65th)
birthday.

2.   Position and Title.
     ------------------

     2.1  The Company on behalf of itself and its affiliates and subsidiaries
hereby employs Employee as Chief Executive Officer and Employee hereby accepts
such employment.

     2.2  Employee shall devote substantially all of his efforts on a full time
basis to the business and affairs of the Company and shall not engage in any
business or perform any services in any capacity whatsoever adverse to the
interests of the Company.

     2.3  Employee shall at all times faithfully, industriously, and to the best
of his ability, experience, and talents, perform all of the duties of his
position.

3.   Compensation.
     ------------

     3.1  As of the date of this Agreement, Employee's annual base salary is
$860,004.  Employee's base salary and performance shall be reviewed periodically
at intervals approved by the Management Development and Compensation Committee
of the Board of Directors of the Company (the "Committee"), and Employee's base
salary may be increased from time to time based on merit or such other
consideration as the Committee may deem appropriate.

     3.2  During the Term, Employee shall participate in all of the Company's
incentive plans, benefit plans and perquisites, and in any new or successor
incentive plans, benefit plans and perquisites, that are generally provided to
executives of the Company with a level of responsibility and stature comparable
to
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                                      -2-

Employee.  Performance goals, award opportunity, benefit levels, and
administrative guidelines for such plans shall be subject to review and approval
by the Committee.

4.   Termination of Employment.
     -------------------------

     4.1  During the Term, the Company may terminate Employee's employment
herein at any time for Cause or as a result of a material breach by Employee of
his obligations under this Agreement, provided however that, except in the case
of conviction of a felony, the Company shall provide Employee with not less than
sixty (60) days prior written notice describing the behavior or conduct which is
alleged by the Company to constitute Cause, and Employee shall be provided with
reasonable opportunity to correct such behavior or conduct within the notice
period.  For purposes of this Agreement, Cause shall be defined as any or all of
the following:

     (1) Conduct or action by Employee which, in the opinion of a majority of
         the Board of Directors, is materially harmful to the Company;

     (2) Willful failure by Employee to follow an order of the Board, except in
         such case where the Employee believes in good faith that following such
         order would be materially detrimental to the interests of the Company;

     (3) Employee's conviction of a felony.

     4.2  In the event that Employee's employment is terminated by the Company
for any reason other than those set forth in Paragraph 4.1 hereinabove, or, (a)
Employee's annual base salary is reduced below the amount stated in Paragraph
3.1 hereinabove (unless such reduction is part of an across the board reduction
affecting all Company executives with a comparable level of responsibility,
title or stature), or (b) Employee is removed from or denied participation in
incentive plans, benefit plans, or perquisites generally provided by the Company
to other executives with a comparable level of responsibility, title or stature,
or (c) Employee's target incentive opportunity, benefits or perquisites are
reduced relative to other executives with comparable responsibility, title or
stature, or (d) Employee is assigned duties or obligations inconsistent with his
position with the Company or (e) There is a significant change in the nature and
scope of Employee's authority or his overall working environment, such event
shall be considered a Termination Without Cause.

     4.3  In the event of Employee's Termination Without Cause at any time
during the Term of this Agreement, then:

     (1)  The Company shall pay Employee a lump-sum severance amount within
          thirty (30) days following Termination Without Cause equal to three
          (3) times the sum of (a) the higher of the Employee's annual base
          salary at the time of Termination Without Cause or the annual base
          salary stated in Paragraph 3.1 hereinabove, and (b) the average annual
          Bonus earned by Employee (whether paid in cash or deferred) for the
          two completed fiscal years immediately prior to Termination Without
          Cause, reduced by the amount
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                                      -3-

          of any Unocal Employee Redeployment Program and/or Unocal Termination
          Allowance benefits payable to Employee.

     (2)  The Company shall provide for Employee to receive medical, dental,
          life, and disability insurance coverage for three (3) years following
          Termination Without Cause at levels and a net cost to Employee
          comparable to that provided to Employee immediately prior to
          Employee's Termination Without Cause.

     (3)  The Company shall pay Employee an additional lump-sum severance amount
          within thirty (30) days following Employee's Termination Without Cause
          equal to three (3) times the base salary used to determine the lump-
          sum severance benefit in paragraph 4.3(1) hereinabove, multiplied by
          6% (.06).

     4.4  In the event that during the Term of this Agreement Employee should
voluntarily resign from the Company, should terminate employment with the
Company due to death, permanent disability or incapacitation, or is terminated
by the Company for Cause or for a material breach by Employee of his obligations
under this Agreement, then Employee shall not be entitled to any of the
termination benefits provided for in Paragraph 4.3 hereinabove, and the Term of
the Agreement shall immediately end.

     4.5  Employee shall not be obligated to seek other employment or take any
other action by way of mitigation of the amounts payable to Employee under any
provisions of this Agreement.

5.   Change of Control.
     -----------------

     5.1  In the event of a Change of Control of the Company at any time during
the Term of this Agreement, then:

     (1)  In the event of Employee's Termination Without Cause within a period
          of thirty-six (36) months following the date of a Change of Control,
          Employee shall be entitled to the termination benefits described in
          Paragraph 4.3 hereinabove; provided that the lump-sum severance amount
          paid to Employee under this Paragraph 5.1(1), which is calculated
          based on Paragraphs 4.3(1) and 4.3(3) hereinabove, shall be (a)
          reduced to equal the present value, determined in accordance with
          Section 280G(d)(4) of the Internal Revenue Code (the "IRC"), of the
          lump-sum severance amount which would otherwise be payable under
          Paragraphs 4.3(1) and 4.3(3), and (b) reduced to offset compensation
          and other earned income by Employee in the manner provided for in
          Paragraphs 5.1(2) and 5.1(3) below.

     (2)  The lump-sum severance amounts payable to Employee under Paragraphs
          4.3(1) and 4.3(3) shall be reduced by one hundred percent (100%) of
          any compensation and other earned income (within the meaning of
          Section 911(d)(2)(A) of the IRC) which is earned by Employee for
          services rendered
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                                      -4-

          to persons or entities other than the Company or its affiliates during
          the three years immediately following Employee's Termination Without
          Cause.

     (3)  Not less frequently than annually beginning on the first anniversary
          following Employee's Termination Without Cause, Employee shall account
          to the Company with respect to all compensation and other earned
          income earned by Employee which is required hereunder to be offset
          against the lump-sum severance amount received by Employee from the
          Company under Paragraphs 5.1(1) and 5.1(2). If the Company has paid a
          lump-sum severance amount in excess of the amount to which Employee is
          entitled (after giving effect to the offsets provided for above),
          Employee shall reimburse the Company for such excess within thirty
          (30) days of the determination of such excess. The requirements
          imposed under this Paragraph 5.1(3) shall terminate thirty (30) days
          immediately following the second anniversary of Employee's Termination
          Without Cause.

     5.2  For the purpose of this Agreement, a "Change of Control" shall mean:

     (a)  The acquisition by any individual, entity or group (within the meaning
of Section 13(d)(3) or 14(d)(2) of the Securities Exchange Act of 1934, as
amended (the "Exchange Act")(a "Person") of beneficial ownership (within the
meaning of Rule 13d-3 promulgated under the Exchange Act) of 20% or more of
either (i) the then outstanding shares of common stock of the Company (the
"Outstanding Company Common Stock") or (ii) the combined voting power of the
then outstanding voting securities of the Company entitled to vote generally in
the election of directors (the "outstanding Company Voting Securities");
provided, however, that for purposes of this subsection (a), the following
acquisitions shall not constitute a Change of Control: (i) any acquisition
directly from the Company, (ii) any acquisition by the Company, (iii) any
acquisition by an employee benefit plan (or related trust) sponsored or
maintained by the Company or any corporation controlled by the Company or (iv)
any acquisition by any corporation pursuant to a transaction which complies with
clauses (i), (ii) and (iii) of subsection (c) of this Section 5.2; or

     (b)  Individuals who, as of the date hereof, constitute the Board (the
"Incumbent Board") cease for any reason to constitute at least a majority of the
Board; provided, however, that any individual becoming a director subsequent to
the date hereof whose election, or nomination for election by the Company's
shareholders, was approved by a vote of at least a majority of the directors
then comprising the Incumbent Board shall be considered as though such
individual were a member of the Incumbent Board, but excluding, for this
purpose, any such individual whose initial assumption of office occurs as a
result of an actual or threatened election contest with respect to the election
or removal of directors or other actual or threatened solicitation of proxies or
consents by or on behalf of a Person other than the Board; or

     (c)  Consummation of a reorganization, merger or consolidation or sale or
other disposition of all or substantially all of the assets of the Company or
the acquisition of assets of another corporation (a "Business Combination"), in
each case, unless, following such Business Combination, (i) all or substantially
all of the individuals and entities who were the beneficial owners,
respectively, of the Outstanding Company Common Stock and Outstanding Company
Voting Securities immediately prior to such Business Combination beneficially
own, directly or indirectly, more than 50% of, respectively, the then
outstanding
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                                      -5-

shares of common stock and the combined voting power of the then outstanding
voting securities entitled to vote generally in the election of directors, as
the case may be, of the corporation resulting from such Business Combination
(including, without limitation, a corporation which as a result of such
transaction owns the Company or all or substantially all of the Company's assets
either directly or through one or more subsidiaries) in substantially the same
proportions as their ownership, immediately prior to such Business Combination
of the Outstanding Company Common Stock and Outstanding Company Voting
Securities, as the case may be, (ii) no Person (excluding any corporation
resulting from such Business Combination or any employee benefit plan (or
related trust) of the Company or such corporation resulting from such Business
Combination) beneficially owns, directly or indirectly, 20% or more of,
respectively, the then outstanding shares of common stock of the corporation
resulting from such Business Combination or the combined voting power of the
then outstanding voting securities of such corporation except to the extent that
such ownership existed prior to the Business Combination and (iii) at least a
majority of the members of the board of directors of the corporation resulting
from such Business Combination were members of the Incumbent Board at the time
of the execution of the initial agreement, or of the action of the Board,
providing for such Business Combination; or

     (d)  Approval by the shareholders of the Company of a complete liquidation
or dissolution of the Company.

     5.3  Certain Additional Payments by the Company may be due as follows:

     (a)  Anything in this Agreement to the contrary notwithstanding and except
as set forth below, in the event it shall be determined that any payment or
distribution by the Company or its affiliates to or for the benefit of the
Employee (whether paid or payable or distributed or distributable pursuant to
the terms of this Agreement or otherwise but determined without regard to any
additional payments required under this Section 5.3), (a "Payment") would be
subject to the excise tax imposed by Section 4999 of the Code or any interest or
penalties are incurred by the Employee with respect to such excise tax (such
excise tax, together with any such interest and penalties, are hereinafter
collectively referred to as the "Excise Tax"), then the Employee shall be
entitled to receive an additional payment (a "Gross-Up Payment") in an amount
such that after payment by the Employee of all taxes (including any interest or
penalties imposed with respect to such taxes), including, without limitation,
any income taxes (and any interest and penalties imposed with respect thereto)
and Excise Tax imposed upon the Gross-Up Payment, the Employee retains an amount
of the Gross-Up Payment equal to the Excise Tax imposed upon the Payments.
Notwithstanding the foregoing provisions of this Section 5.3, if it shall be
determined that the Employee is entitled to a Gross-Up Payment, but that the
Payments do not exceed 110% of the greatest amount (the "Reduced Amount") that
could be paid to the Employee such that the receipt of Payments would not give
rise to any Excise Tax, then no Gross-Up Payment shall be made to the Employee
and the Payments, in the aggregate, shall be reduced to the Reduced Amount.

     (b)  Subject to the provisions of Section 5.3(c), all determinations
required to be made under this Section 5.3, including whether and when a Gross-
Up Payment is required and the amount of such Gross-Up Payment and the
assumptions to be utilized in arriving at such determination, shall be made by
Ernst and Young or such other certified public accounting firm as may be
designated by the Employee (the "Accounting Firm") which shall provide detailed
supporting calculations both to the Company and the Employee within 15 business
days of the receipt of notice from the Employee that there has been a
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                                      -6-

Payment, or such earlier time as is requested by the Company. In the event that
the Accounting Firm is serving as accountant or auditor for the individual,
entity or group effecting the Change of Control, the Employee shall appoint
another nationally recognized accounting firm to make the determinations
required hereunder (which accounting firm shall then be referred to as the
Accounting Firm hereunder). All fees and expenses of the Accounting Firm shall
be borne solely by the Company. Any Gross-Up Payment, as determined pursuant to
this Section 5.3, shall be paid by the Company to the Employee within five days
of the receipt of the Accounting Firm's determination. Any determination by the
Accounting Firm shall be binding upon the Company and the Employee. As a result
of the uncertainty in the application of Section 4999 of the Code at the time of
the initial determination by the Accounting Firm hereunder, it is possible that
Gross-Up Payments which will not have been made by the Company should have been
made ("Underpayment"), consistent with the calculations required to be made
hereunder. In the event that the Company exhausts its remedies pursuant to
Section 5.3(c) and the Employee thereafter is required to make a payment of any
Excise Tax, the Accounting Firm shall determine the amount of the Underpayment
that has occurred and any such Underpayment shall be promptly paid by the
Company to or for the benefit of the Employee.

     (c)   The Employee shall notify the Company in writing of any claim by the
Internal Revenue Service that, if successful, would require the payment by the
Company  of the Gross-Up Payment.  Such notification shall be given as soon as
practicable but no later than ten business days after the Employee is informed
in writing of such claim and shall apprise the Company of the nature of such
claim and the date on which such claim is requested to be paid.  The Employee
shall not pay such claim prior to the expiration of the 30-day period following
the date on which it gives such notice to the Company (or such shorter period
ending on the date that any payment of taxes with respect to such claim is due).
If the Company notifies the Employee in writing prior to the expiration of such
period that it desires to contest such claim, the Employee shall:

     (i)   give the Company any information reasonably requested by the Company
relating to such claim,

     (ii)  take such action in connection with contesting such claim as the
Company shall reasonably request in writing from time to time, including,
without limitation, accepting legal representation with respect to such claim by
an attorney reasonably selected by the Company,

     (iii) cooperate with the Company in good faith in order effectively to
contest such claim, and

     (iv)  permit the Company to participate in any proceedings relating to such
claim;

provided, however, that the Company shall bear and pay directly all costs and
expenses (including additional interest and penalties) incurred in connection
with such contest and shall indemnify and hold the Employee harmless, on an
after-tax basis, for any Excise Tax or income tax (including interest and
penalties with respect thereto) imposed as a result of such representation and
payment of costs and expenses.  Without limitation on the foregoing provisions
of this Section 5.3(c), the Company shall control all proceedings taken in
connection with such contest and, at its sole option, may pursue or forgo any
and all administrative appeals, proceedings, hearings and conferences with the
taxing authority in respect of such claim and may, at its sole option, either
direct the Employee to pay the tax claimed and sue for a
<PAGE>

                                      -7-

refund or contest the claim in any permissible manner, and the Employee agrees
to prosecute such contest to a determination before any administrative tribunal,
in a court of initial jurisdiction and in one or more appellate courts, as the
Company shall determine; provided, however, that if the Company directs the
Employee to pay such claim and sue for a refund, the Company shall advance the
amount of such payment to the Employee, on an interest-free basis and shall
indemnify and hold the Employee harmless, on an after-tax basis, from any Excise
Tax or income tax (including interest or penalties with respect thereto) imposed
with respect to the such advance or with respect to any imputed income with
respect to such advance; and further provided that any extension of the statute
of limitations relating to payment of taxes for the taxable year of the Employee
with respect to which such contested amount is claimed to be due is limited
solely to such contested amount. Furthermore, the Company's control of the
contest shall be limited to issues with respect to which a Gross-Up Payment
would be payable hereunder and the Employee shall be entitled to settle or
contest, as the case may be, any other issue raised by the Internal Revenue
Service or any other taxing authority.

     (d)  If, after the receipt by the Employee of an amount advanced by the
Company pursuant to Section 5.3(c), the Employee becomes entitled to receive any
refund with respect to such claim, the Employee shall (subject to the Company's
employing with the requirements of Section 5.3 promptly pay to the Company the
amount of such refund (together with any interest paid or credited thereon after
taxes applicable thereto).  If, after the receipt by the Employee of an amount
advanced by the Company pursuant to Section 5.3(c), a determination is made that
the Employee shall not be entitled to any refund with respect to such claim and
the Company does not notify the Employee in writing of its intent to contest
such denial of refund prior to the expiration of 30 days after such
determination, then such advance shall be forgiven and shall not be required to
be repaid and the amount of such advance shall offset, to the extent thereof,
the amount of Gross-Up Payment required to be paid.

6.   Covenants.
     ----------

     6.1  Employee agrees that any and all confidential knowledge or
information, including but not limited to customer lists, books, records, data,
formulae, specifications, inventions, processes and methods, and developments
and improvements, which have been or may be obtained or learned by Employee in
the course of his employment with the Company, will be held confidential by
Employee, and that Employee shall not disclose the same to any person outside of
the Company either during his employment with the Company or after his
employment by the Company has terminated.

     6.2  Employee agrees that upon termination of his employment with the
Company he will immediately surrender and turn over to the Company all books,
records, forms, specifications, formulae, data, and all papers and writings
relating to the business of the Company and all other property belonging to the
Company, it being understood and agreed that the same are the sole property of
the Company and that Employee shall not make or retain any copies thereof.

     6.3  Employee agrees that all inventions, developments or improvements
which he has made or may make, conceive, invent, discover or otherwise acquire
during his employment with the Company in the scope of his responsibilities or
otherwise shall become the sole property of the Company.
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                                      -8-

     6.4  Employee agrees to provide a release of any claims with respect to
termination of his or her employment on such form as requested by the Company
upon payment of the sums provided in Section 4.3 above.

7.   Miscellaneous Provisions.
     ------------------------

     7.1  All terms and conditions of this Agreement are set forth herein, and
there are no warranties, agreements or understandings, express or implied,
except those expressly set forth herein.

     7.2  Any modification to this Agreement shall be binding only if evidenced
in writing signed by all parties hereto.

     7.3  Any notice or other communication required or permitted to be given
hereunder shall be deemed properly given if personally delivered or deposited in
the United States mail, registered or certified and postage prepaid, addressed
to the Company at 2141 Rosecrans Ave., Suite 4000, El Segundo, CA (Attention:
General Counsel), or to Employee at his or her most recent home address on file
with Company, or at other such addresses as may from time to time be designated
in writing by the respective parties.

     7.4  The laws of the State of California shall govern the validity of this
Agreement, the construction of its terms, and the interpretation of the rights
and duties of the parties involved.

     7.5  In the event that any one or more of the provisions contained in this
Agreement shall for any reason be held to be invalid, illegal or unenforceable,
the same shall not affect any other provision of this Agreement, but this
Agreement shall be construed as if such invalid, illegal or unenforceable
provisions had never been contained herein.

     7.6  This Agreement shall be binding upon, and inure to the benefit of, the
successors and assigns of the Company and the personal representatives, heirs
and legatees of Employee.

     7.7  "Bonus" refers to the Unocal Incentive Compensation Plan and any
replacement or successor plan thereof.

     7.8  Company shall pay 90% (ninety percent) of Employee's out-of-pocket
litigation expenses, including reasonable attorney's fees, in connection with
any judicial proceeding to enforce this Agreement or construe or determine the
validity of this Agreement, whether or not the Employee is successful in such
proceeding.

     7.9  The term "Company" shall include with respect to employment hereunder,
any subsidiary or affiliate of the Company as well as any successor employer
following a Change in Control.

     7.10 This Agreement succeeds and replaces that Unocal Employment Agreement
which was effective December 8, 1997 between Company and Employee.
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                                      -9-

IN WITNESS WHEREOF, the parties have executed this Agreement effective as of the
date first above written.

BY:  /s/ FRANK C. HERRINGER
     ------------------------------------------
     Chairman of the Management Development and
     Compensation Committee of the Unocal
     Board of Directors

BY:  /s/ R. C. BEACH
     ------------------------------------------
     EMPLOYEE

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