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                                                                    EXHIBIT 10.1


                        OCCIDENTAL PETROLEUM CORPORATION

                          SUPPLEMENTAL RETIREMENT PLAN

              Amended and Restated Effective as of January 1, 1999

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                        OCCIDENTAL PETROLEUM CORPORATION
                        --------------------------------
                          SUPPLEMENTAL RETIREMENT PLAN
                          ----------------------------
              Amended and Restated Effective as of January 1, 1999

                                TABLE OF CONTENTS
                                -----------------
ARTICLE           SECTION                                                   PAGE
- -------           -------                                                   ----
     1            Establishment and Purpose
                  -------------------------
                  1.1      Establishment and Restatement of Plan             1
                  1.2      Purpose of the Plan                               1
                  1.3      Application of Plan                               1

     2            Definitions
                  -----------
                  2.1      Definitions                                       2
                  2.2      Gender and Number                                 4

     3            Eligibility and Participation
                  -----------------------------
                  3.1      Participation Prior to 1999                       5
                  3.2      Participation after 1998                          5

     4            Benefits
                  --------
                  4.1      Allocations Relating to Retirement Plan           7
                  4.2      Contributions Relating to Retirement Plan         7
                  4.3      Allocations Relating to Savings Plan              8
                  4.4      Contributions Relating to Savings Plan            8
                  4.5      Allocations Relating to 1988                      8
                           Deferred Compensation Plan
                  4.6      Contributions Relating to 1988                    9
                           Deferred Compensation Plan
                  4.7      Maintenance of Accounts                           9
                  4.8      Vesting and Forfeiture                           11
                  4.9      Payment                                          11
                  4.10     Death                                            13
                  4.11     Withholding; Unemployment Taxes                  13

     5            Administration
                  --------------
                  5.1      Administrative Committee                         14
                  5.2      Uniform Rules                                    14
                  5.3      Notice of Address                                15
                  5.4      Records                                          15

     6            Amendment and Termination
                  -------------------------
                  6.1      Amendment and Termination                        16
                  6.2      Reorganization of Employer                       16
                  6.3      Protected Benefits                               17


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                        OCCIDENTAL PETROLEUM CORPORATION
                        --------------------------------
                          SUPPLEMENTAL RETIREMENT PLAN
                          ----------------------------
              Amended and Restated Effective as of January 1, 1999

                                TABLE OF CONTENTS
                                -----------------
ARTICLE           SECTION                                                   PAGE
- -------           -------                                                   ----
     7            General Provisions
                  ------------------
                  7.1      Nonassignability                                 18
                  7.2      Employment Rights                                18
                  7.3      Illegality of Particular Provision               18
                  7.4      Applicable Laws                                  18

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                        OCCIDENTAL PETROLEUM CORPORATION
                        --------------------------------
                          SUPPLEMENTAL RETIREMENT PLAN
                          ----------------------------
                              Amended and Restated
                         Effective as of January 1, 1999


                      Article 1. Establishment and Purpose
                      ------------------------------------

     1.1  Establishment and Restatement of Plan. Occidental Petroleum
Corporation (the "Company") hereby amends and restates the Plan effective as of
January 1, 1999, which Plan shall be known as the OCCIDENTAL PETROLEUM
CORPORATION SUPPLEMENTAL RETIREMENT PLAN (the "Plan"). The restatement reflects
the merger of the Plan with the Occidental Petroleum Corporation Senior
Executive Supplemental Retirement Plan. The Plan is intended to be exempt from
the participation, vesting, funding, and fiduciary requirements of Title 1 of
the Employee Retirement Income Security Act of 1974 ("ERISA"), as an unfunded
plan maintained primarily for the purpose of providing deferred compensation for
a select group of management or highly compensated employees. The portion of the
Plan which is an "excess benefit plan" within the meaning of ERISA section 3(36)
shall be treated as a separate plan for all purposes of Title I of ERISA.

     1.2  Purpose of the Plan. It is the purpose of this Plan to provide
eligible employees with benefits that will compensate them for maximums imposed
by law upon contributions to qualified plans.

     1.3  Application of Plan. The terms of this Plan are applicable to
eligible employees employed by the Company on or after January 1, 1999.

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                             Article 2. Definitions
                             ----------------------

     2.1  Definitions. Whenever used in the Plan, the following terms shall
have the respective meanings set forth below, unless a different meaning is
required by the context in which the word is used, and when the defined meaning
is intended, the term is capitalized:

     (a)  "Administrative Committee" means the committee with authority to
          administer the Plan as provided under section 5.1.

     (b)  "Affiliate" means any corporation which is controlled by or under
          common control with the Company.

     (c)  "Beneficiary" means the persons designated under the Retirement Plan
          by the Participant to receive benefits in the event of his death,
          provided that, in the case of those Participants who were participants
          in the Senior Executive Supplemental Retirement Plan on December 31,
          1998, "Beneficiary" shall mean the persons designated by the
          Participant in accordance with Article 8 of that plan as of that date,
          or the persons designated by the Participant in writing on a form to
          be filed with the Administrative Committee at any time thereafter.

     (d)  "Board of Directors" means the Board of Directors of the Company.

     (e)  "Code" means the Internal Revenue Code of 1986.

     (f)  "Company" means Occidental Petroleum Corporation, and any successor
          thereto.

     (g)  "Compensation" means the base salary of the employee as stated in the
          payroll records of the Employer, excluding any amounts paid for
          bonuses, income realized upon exercise of stock options, and any other
          special pay which the Employer pays to the employee during the Plan
          Year, prior to reduction for any deferral of base salary under the
          Company's Savings Plan, 1988 Deferred Compensation Plan or any other
          qualified or non-qualified deferred compensation

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          plan or agreement. In the case of a Participant who became disabled
          prior to October 1, 1995 and who is receiving benefits under the
          Long-Term Disability Plan, Compensation shall be his base salary as
          described above in effect at the time he became disabled, as that term
          is defined in the Long-Term Disability Plan.

     (h)  "Employer" means the Company and any Affiliate which is designated by
          the Administrative Committee and which approves adoption of this Plan
          by appropriate corporate action

     (i)  "Long-Term Disability Plan" means the OCCIDENTAL PETROLEUM CORPORATION
          LONG-TERM DISABILITY PLAN, as amended from time to time.

     (j)  "Participant" means a person meeting the requirements set forth in
          Article 3 to participate in the Plan

     (k)  "Plan Year" means the calendar year

     (l)  "Retirement Plan" means the OCCIDENTAL PETROLEUM CORPORATION
          RETIREMENT PLAN, and as amended from time to time.

     (m)  "Savings Plan" means the OCCIDENTAL PETROLEUM CORPORATION SAVINGS
          PLAN, as amended from time to time.

     (n)  "Senior Executive Supplemental Retirement Plan" means the OCCIDENTAL
          PETROLEUM CORPORATION SENIOR EXECUTIVE SUPPLEMENTAL RETIREMENT PLAN,
          as in effect on December 31, 1998.

     (o)  "Years of Service" means the number of full years credited to a
          Participant under the Retirement Plan for vesting purposes.

     (p)  "1988 Deferred Compensation Plan" means the OCCIDENTAL PETROLEUM
          CORPORATION 1988 DEFERRED COMPENSATION PLAN, as amended from time to
          time.

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     2.2  Gender and Number. Except when otherwise indicated by the context,
any masculine terminology used herein shall also include the feminine, and the
use of any term herein in the singular may also include the plural.

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                    Article 3. Eligibility and Participation
                    ----------------------------------------

     3.1  Participation Prior to 1999. Any employee who was a Participant as
of December 31, 1998 shall continue to be a Participant effective January 1,
1999. Additionally, any employee who was a participant in the Senior Executive
Supplemental Retirement Plan on December 31, 1998 shall become a Participant on
January 1, 1999.

     3.2  Participation after 1998. The provisions set forth in this section
3.2 shall be effective as of January 1, 1999 and shall apply to employees who
are not Participants pursuant to section 3.1.

          Any employee who is eligible to participate in the Savings Plan and
the Retirement Plan and who, for a given plan year of the Savings Plan, would be
ineligible to receive the maximum employer matching contribution under section
5.1 of the Savings Plan due to the limitations imposed by sections 401(a)(17)
(which limits the amount of compensation which may be taken into account) or 415
of the Code (assuming the second paragraph of section 4.7 of the Retirement Plan
is applicable to the employee) shall be a Participant.

          In addition, any employee who would be ineligible to receive the
maximum employer matching contribution under section 5.1 of the Savings Plan in
a plan year of the Savings Plan, due to the limitations described in the
preceding paragraph, on account of deferrals of base salary during the year
under any nonqualified pension benefit plan sponsored by the Company or an
Affiliate in which the Participant participates shall be a Participant in this
Plan for that Plan Year.

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          Any employee who is a participant in the 1988 Deferred Compensation
Plan shall be a Participant.

          Any employee who is a participant in and receiving benefits under the
Long-Term Disability Plan and who was a highly-compensated employee (as defined
in Code section 414(q)) in the year of his commencement of benefits under the
Long-Term Disability Plan shall be a Participant for each Plan Year during which
he receives benefit payments under the Long-Term Disability Plan, provided that
no such employee who becomes disabled under the terms of the Long-Term
Disability Plan subsequent to September 30, 1995 shall be a Participant.

          Notwithstanding anything contained herein, any employee who is
entitled to receive supplemental retirement benefits upon his retirement
pursuant to a written contract of employment between himself and the Company or
an Affiliate shall be ineligible to be a Participant effective upon January 1 of
the year after the effective date of such contractual provision.

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                               Article 4. Benefits
                               -------------------

     4.1  Allocations Relating to Retirement Plan. A credit shall be made as of
the last day of each month to a contingent account for each Participant. The
amount to be allocated shall equal the amount which would be allocated to the
account of the Participant for the month under the Retirement Plan, based on the
Participant's Compensation, if the Participant were not subject to provisions
that withhold allocations until the end of the plan year of the Retirement Plan.
For Participants covered under this Plan, allocations under the Retirement Plan
are determined at the end of the plan year of the Retirement Plan, to the extent
allowable under Code limitations. The amounts contingently credited under this
section 4.1 during the year to a Participant who is an active employee at the
end of the Plan Year shall be reduced by the amount actually allocated to his
account under the Retirement Plan, and any remaining amount shall be credited
permanently to his account under this Plan. In the case of a Participant who is
not an active employee at the end of the Plan Year, the amounts contingently
credited under this section 4.1 during the year shall be credited permanently to
his account under this Plan.

     4.2  Contributions Relating to Retirement Plan. At the end of each year,
the Employer shall contribute to a grantor trust or to similar arrangements
(including company-owned life insurance policies) to fund benefits hereunder an
amount which shall equal such remaining amounts permanently allocated to
Participants hereunder. The Employer shall also contribute and permanently
credit to each Participant's account earnings on contingent monthly allocations
under section 4.1 for the year as if such contingent allocations shared in
earnings at the rate and in the manner described in section 4.7. Notwithstanding
the foregoing, any earnings attributable to the Retirement Plan previously
credited to the account of a Participant under the Plan during

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the current or any preceding plan year shall be reallocated to the account of
the Participant under the Retirement Plan in any year when it is permissible to
do so under Code limitations.

     4.3  Allocations Relating to Savings Plan. A credit shall be made as of the
last day of the Plan Year to the account of each Participant who, for that plan
year of the Savings Plan, makes the maximum deferral or contribution permitted
under Article 4 of the Savings Plan and is not eligible to receive the maximum
employer matching contribution under section 5.1 of the Savings Plan due to the
limitations imposed by sections 401(a)(17) or 415 of the Code. The amount to be
allocated under this Plan shall equal the amount which cannot be allocated to
the account of the Participant under the Savings Plan for the plan year of the
Savings Plan on account of the limitations imposed under the Code, reduced by
any such amount which is credited on behalf of the Participant under any other
Company nonqualified pension benefit plan, including the 1988 Deferred
Compensation Plan. An additional amount equal to five percent (5%) of the amount
allocated to the Participant under the preceding sentence shall be allocated to
each Participant in lieu of interest on such amount for the Plan Year.

     4.4  Contributions Relating to Savings Plan. The amounts allocated to a
Participant under section 4.3 for a Plan Year shall be credited permanently to
his account under this Plan. At the end of each year, the Employer shall
contribute to a grantor trust or to similar arrangements (including
company-owned life insurance policies) to fund benefits hereunder an amount
which shall equal such amounts permanently allocated to Participants hereunder.

     4.5  Allocations Relating to 1988 Deferred Compensation Plan. A credit
shall be made to the account of each Participant who, in that Plan Year, is a
participant in the 1988 Deferred Compensation Plan. Such credit shall be made
irrespective of whether such Participant elects to defer under the 1988 Deferred
Compensation Plan all or any part of any bonus to which

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he might be entitled. Notwithstanding the preceding sentence, no credit shall be
made to the account of a Participant who is not an employee of an Employer on
the date that any such bonus is awarded. The amount to be allocated in a Plan
Year under this Plan with respect to a Participant shall equal that
Participant's applicable percentage multiplied by the amount of the bonus he is
entitled to elect to defer for that plan year of the 1988 Deferred Compensation
Plan. For the purpose of this section 4.5, the term "applicable percentage"
shall mean twelve percent (12%) in the case of a Participant who shall have
attained age 35 prior to the end of the Plan Year in which such credit is made
and eight percent (8%) in the case of a Participant who shall not have attained
age 35 prior to the end of the Plan Year in which such credit is made. The
credit described in this section shall be made to the account of each
Participant effective as of the date on which he is awarded the bonus he is
entitled to defer under the 1988 Deferred Compensation Plan. Notwithstanding the
preceding provisions of this section 4.5, no credit shall be made to the account
of any Participant with respect to any bonus that the Participant is entitled to
elect to defer under the 1988 Deferred Compensation Plan with respect to
services performed in 1997.

     4.6  Contributions Relating to 1988 Deferred Compensation Plan. The
amounts allocated to a Participant under section 4.5 for a Plan Year shall be
credited permanently to his account under this Plan. At the end of each year,
the Employer shall contribute to a grantor trust or to similar arrangements
(including company-owned life insurance policies) to fund benefits hereunder an
amount which shall equal such amounts permanently allocated to Participants
hereunder.

     4.7  Maintenance of Accounts.

          (a)  The Employer shall establish and maintain, in the name of each
               Participant, an individual account which shall consist of all
               amounts permanently credited to the Participant. As of the end of
               each month, the

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               Administrative Committee shall increase or decrease the balance,
               if any, of the Participant's individual account as of the last
               day of the preceding month, by multiplying such amount by a
               number equal to one plus .167% plus the monthly yield on 5-Year
               Treasury Constant Maturities for the monthly processing period.
               The Administrative Committee, in its sole discretion, may credit
               a higher rate of interest on the account balances of Participants
               depending on the status of a Participant, including, but not
               limited to, a Participant's status as an active, retired or
               terminated employee. As of December 31st of each year the
               Administrative Committee shall then add to such account balance,
               any permanent allocation to which the Participant is entitled for
               such year.

          (b)  The individual account of each Participant shall represent a
               liability, payable when due under this Plan, out of the general
               assets of the Employer, or from the assets of any trust,
               custodial account or escrow arrangement which the Employer may
               establish for the purpose of assuring availability of funds
               sufficient to pay benefits under this Plan. The money in any such
               trust or account shall at all times remain the property of the
               Employer, and neither this Plan nor any Participant shall have
               any beneficial ownership interest in the assets thereof. No
               property or assets of the Employer shall be pledged, encumbered,
               or otherwise subjected to a lien or security interest for payment
               of benefits hereunder. Accounting for this Plan shall be based on
               generally accepted accounting principles.

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     4.8  Vesting and Forfeiture. All benefits under this Plan shall be
contingent and forfeitable and no Participant shall have a vested interest in
any benefit until one of the events listed below occurs while he is still
employed with the Employer:

          (a)  he completes five Years of Service; or

          (b)  he dies or becomes disabled (as defined in the Retirement Plan).

          A person who terminates employment with the Employer for any reason
prior to becoming vested hereunder shall not receive a benefit.

     4.9  Payment. Every Participant who terminates employment shall, if vested,
have his account distributed to him as soon as practicable following his
termination of employment under one of the following distribution options
elected by the Participant on a form prescribed by the Administrative Committee:

          (a)  One lump sum payment; or

          (b)  Annual installment payments payable over 5, 10, 15, or 20 years
               commencing in the calendar year following the calendar year in
               which he terminates employment. Annual installment payments
               pursuant to this option (b) shall be available only to
               Participants whose individual account balances exceed $2,000 at
               the time of their termination of employment, notwithstanding any
               contrary elections by the Participant.

          Notwithstanding the previous sentence, in the case of a Participant
who was a participant in the Senior Executive Supplemental Retirement Plan on
December 31, 1998, distribution will not occur until the latest of (i) his
termination of employment, (ii) his attainment of age 55, or (iii) his
attainment of such later age as the Participant may have elected prior to
January 1, 1987.

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          The election must be made by the Participant as soon as practicable
after his commencement of participation, but in no event later than the end of
the twelve month period beginning with such commencement. An election form shall
be provided to the Participant in non-technical language and shall contain a
general description of the distribution options. If a Participant fails to make
an election by the close of the twelve month period beginning when he commenced
participation, he will be deemed to have elected to receive his benefits in the
form of a lump sum payment pursuant to option (a) above.

          The Administrative Committee, in its sole discretion, may permit a
Participant to change his election as to the form of payment upon written
petition of the Participant. In order to be effective, a Participant's election
(or modification or revocation of prior election) of the form of payment must be
made not later than 12 months before the Participant's retirement or termination
of employment, unless otherwise permitted by the Administrative Committee.
Subject to the foregoing limitation, a Participant may make such election (or
revoke a prior election and make a new election) at any time. Any election (or
modification or revocation of a prior election) which is made later than 12
months prior to the Participant's retirement or termination of employment will
be considered void and shall have no force or effect, except as otherwise
determined by the Administrative Committee.

          If benefits are to be paid in installments pursuant to option (b)
above, the Participant's account will continue to be adjusted until any series
of installments has been completed. The amount of each annual installment shall
equal the amount credited to the account as of January 31 of the year in which
the installment is to be paid multiplied by a fraction, the numerator of which
is 1 and the denominator of which is the number of installments (including the
current one) which remain to be paid. Each installment shall be paid on or
before January 31 of the calendar year.

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          Notwithstanding anything else contained in this section 4.9, no
Participant who is eligible for Employer provided long-term disability benefits
and who became disabled prior to October 1, 1995 shall be entitled to a
distribution of benefits hereunder prior to the time long-term disability
payments cease.

     4.10 Death. The account of a Participant who dies while employed by an
Employer shall be paid in a single sum to the Participant's Beneficiary as soon
as administratively possible following the Participant's date of death. If a
Participant dies after termination of employment, then his surviving Beneficiary
shall be paid the amount in the Participant's account in a single sum as soon as
administratively possible following the Participant's date of death.

     4.11 Withholding; Unemployment Taxes. To the extent required by the law in
effect at the time payments are made, the Company shall withhold from payments
made hereunder the minimum taxes required to be withheld by the federal or any
state or local government.

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                            Article 5. Administration
                            -------------------------

     5.1  Administrative Committee. This Plan shall be administered by the
committee appointed to administer the Retirement Plan (the "Administrative
Committee").

          The interpretation and construction by the Administrative Committee
of any provisions of this Plan shall be final unless otherwise determined by the
Board of Directors. Subject to the Board of Directors, the Administrative
Committee is authorized to construe and interpret the Plan, to supply all
omissions from, correct deficiencies in and resolve ambiguities in the language
of the Plan, to decide all questions of eligibility and determine the amount,
manner, and time of payment of benefits, to prescribe, amend, and rescind rules
and regulations relating to the Plan, and to make all other determinations
necessary for its administration.

          Without limiting the generality of the foregoing, the Administrative
Committee shall have the authority to calculate amounts allocable to
Participants, and to maintain and adjust accounts. The Administrative Committee
shall have authority to delegate responsibility for performance of ministerial
functions necessary for administration of the Plan to such officers of the
Employer, including Participants, as the Administrative Committee shall in its
discretion deem appropriate.

     5.2  Uniform Rules. In administering the Plan, the Administrative Committee
will apply uniform rules to all Participants similarly situated.

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     5.3  Notice of Address. Any payment to a Participant or Beneficiary, at the
last known post office address submitted to the Employer, shall constitute a
complete acquittance and discharge of the Employer and any director or officer
with respect thereto. Neither the Employer nor any director or officer shall
have any duty or obligation to search for or ascertain the whereabouts of any
Participant or his Beneficiary.

     5.4  Records. The records of the Administrative Committee with respect to
the Plan shall be conclusive on all Participants, all Beneficiaries, and all
other persons whomsoever.

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                      Article 6. Amendment and Termination
                      ------------------------------------

     6.1  Amendment and Termination. The Company expects the Plan to be
permanent, but since future conditions affecting the Company cannot be
anticipated or foreseen, the Company must necessarily and does hereby reserve
the right to amend, modify, or terminate the Plan at any time by action of its
Board of Directors, except that no amendment shall reduce the dollar amount
credited to a Participant's account and any such termination or amendment shall
apply uniformly to all Participants. The Administrative Committee in its
discretion may amend the Plan if it finds that such amendment does not
significantly increase or decrease benefits or costs.

     6.2  Reorganization of Employer. In the event of a merger or consolidation
of the Employer, or the transfer of substantially all of the assets of the
Employer to another corporation, such continuing, resulting or transferee
corporation shall have the right to continue and carry on the Plan and to assume
all liabilities of the Employer hereunder without obtaining the consent of any
Participant or Beneficiary. If such successor shall assume the liabilities of
the Employer hereunder, then the Employer shall be relieved of all such
liability, and no Participant or Beneficiary shall have the right to assert any
claim against the Employer for benefits under or in connection with this Plan.

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     6.3  Protected Benefits. If the Plan is terminated or amended so as to
prevent further earnings adjustments, or if liabilities accrued hereunder up to
the date of an event specified in section 6.2 are not assumed by the successor
to the Employer, then the dollar amount in the account of each Participant, or
Beneficiary (whether or not vested) shall be paid in cash to such Participant or
Beneficiary in a single sum on the last day of the second month following the
month in which the amendment or termination occurs.

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                          Article 7. General Provisions
                          -----------------------------

     7.1. Nonassignability. Neither a Participant nor any other person shall
have any right to commute, sell, assign, transfer, pledge, anticipate, mortgage
or otherwise encumber, hypothecate or convey in advance of actual receipt the
amount, if any, payable hereunder, or any part thereof, or interest therein
which are, and all rights to which are, expressly declared to be unassignable
and non-transferable. No part of the amounts payable shall, prior to actual
payment, be subject to seizure or sequestration for the payment of any debts,
judgments, alimony or separate maintenance owed by a Participant or any other
person, nor be transferable by operation of law in the event of a Participant's
or any other person's bankruptcy or insolvency.

     7.2  Employment Rights. The establishment of the Plan shall not be
construed as conferring any legal rights upon any Participant or any other
person for a continuation of employment, nor shall it interfere with the rights
of the Employer to discharge any person or treat him without regard to the
effect which such treatment might have upon him under this Plan.

     7.3  Illegality of Particular Provision. If any particular provision of
this Plan shall be found to be illegal or unenforceable, such provision shall
not affect any other provision, but the Plan shall be construed in all respects
as if such invalid provision were omitted.

     7.4  Applicable Laws.  The Plan shall be governed by and construed
according to the laws of the State of California.

                                      * * *

          This amended and restated Plan shall be effective as of January 1,
1999.

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