Document:

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                                                                    EXHIBIT 10.4

                            EQUISTAR CHEMICALS, LP

                     EXECUTIVE SUPPLEMENTARY SAVINGS PLAN

                          EDITION OF JANUARY 1, 2000
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                               TABLE OF CONTENTS

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                                                                 Page
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Section 1. Intent of Plan.......................................... 1
Section 2. Effective Date of Plan.................................. 1

Section 3. Definitions............................................. 1
  3.1. "Administrative Committee" or "Committee"................... 1
  3.2. "Base Pay".................................................. 1
  3.3. "Company"................................................... 1
  3.4. "Employee".................................................. 1
  3.5. "Plan Year"................................................. 1

Section 4. Costs of Plan........................................... 2

Section 5. Eligibility for Benefits................................ 2

Section 6. Amount of Benefit....................................... 2

Section 7. Crediting of Benefit.................................... 2

Section 8. Time of Payment of Benefit.............................. 2

Section 9. Death Benefits.......................................... 2

Section 10. Administration......................................... 2
  10.1. Rules of Conduct........................................... 2
  10.2. Legal, Accounting, Clerical and Other Services............. 2
  10.3. Interpretation of Provisions............................... 3
  10.4. Records of Administration.................................. 3
  10.5. Denial of Claim............................................ 3
  10.6. Liability of Committee..................................... 3

Section 11. Facility of Payment and Lapse of Benefits.............. 3
  11.1. Provision for Incapacity................................... 3
  11.2. Payments or Deposits....................................... 3

Section 12. General Provisions..................................... 4
  12.1. Unfunded Benefit Plan...................................... 4
  12.2. Payments and Benefits Not Assignable....................... 4
  12.3. No Right of Employment..................................... 4
  12.4. Adjustments................................................ 4

Section 13. Amendments and Discontinuance.......................... 4
  13.1. Amendment of Plan.......................................... 4
</TABLE>

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  13.2. Termination................................................ 4
  13.3. Effect of Amendment or Termination......................... 4
</TABLE>

                                      ii
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                            EQUISTAR CHEMICALS, LP
                     EXECUTIVE SUPPLEMENTARY SAVINGS PLAN

                          Section 1. Intent of Plan.

     1.1. This Plan is intended to provide an annual benefit, in accordance with
its provisions to that select group of management or highly compensated
employees whose participation in the Equistar Chemicals, LP Savings and
Investment Plan is limited.

                      Section 2. Effective Date of Plan.

     2.1. This Plan shall be effective as of January 1, 2000.

                            Section 3. Definitions

     3.1. "Administrative Committee" or "Committee" means the Benefits
Administrative Committee appointed by the Partnership Governance Committee of
the Company.

     3.2. "Base Pay" means an Employee's regular wages or salary, as determined
by the Company, excluding extra pay, such as bonuses, or other supplementary
allowances;

     3.3. "Company" means Equistar Chemicals, LP and any of its subsidiaries or
affiliates whose employees are included in this Plan upon authorization of the
Partnership Governance Committee of Equistar Chemicals, LP.

     3.4. "Employee" means any person who:

            (a)   is regularly employed by the Company on a full time or part
                  time basis;

            and

            (b)   either:

                  (i)  is a member of that select group of management or highly
                       compensated employees on the executive payroll; or

                  (ii) is an employee with an annualized Base Pay no less than
                       $160,000;

                  and

            (c)   has been excluded from making Savings Contributions and from
                  receiving Company Contributions under the Equistar Chemicals,
                  LP Savings and Investment Plan.

     3.5. "Plan Year" means the calendar year.

                                       1
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                           Section 4. Costs of Plan.

     4.1.  The Company shall bear all costs of this Plan, including its
administration, and no Employee contributions shall be required or permitted.

                     Section 5. Eligibility for Benefits.

     5.1.  Each person who qualifies as an Employee under Paragraph 3.4 for all
or any part of a Plan Year shall participate in the Plan for that portion of the
Plan Year.

                         Section 6. Amount of Benefit.

     6.1.  The amount of an Employee's benefit for each Plan Year shall be equal
to the maximum Company Contribution under the Equistar Chemicals, LP Savings and
Investment Plan, assuming no limitations on contributions imposed by Section 415
or any other Sections of the Code during the Plan Year.

                       Section 7. Crediting of Benefit.

     7.1.  The Administrative Committee shall determine the amount of benefit to
be credited to an Employee for a Plan Year within 30 days after the end of the
Plan Year or 30 days after the Employee's termination of employment, whichever
occurs earlier.

                    Section 8. Time of Payment of Benefit.

     8.1.  An Employee shall be paid the benefit to which the Employee is
entitled for a Plan Year in a single cash payment no later than 30 days
following the date the Company credits the benefit, unless the benefit has been
deferred under the Equistar Chemicals, LP Executive Deferral Plan.

                          Section 9. Death Benefits.

     9.1.  If an Employee dies prior to payment of the benefit due under the
Plan, the benefit shall be paid as soon as practicable following the Employee's
death to the Employee's most recently designated beneficiary or beneficiaries.
The beneficiary must be designated in writing on a form approved by the
Committee and must be accepted by the Plan prior to the Employee's death. If no
designation has been made, or if all designated beneficiaries have died before
the Employee, the benefit shall be paid to the Employee's estate.

                          Section 10. Administration.

     10.1. Rules of Conduct. The Administrative Committee shall adopt rules to
conduct its business and the Plan's administration as it considers desirable,
provided they do not conflict with the Plan's provisions.

     10.2. Legal, Accounting, Clerical and Other Services. The Administrative
Committee may authorize one or more of its members or any agent to act on its
behalf and may contract for

                                       2
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legal, accounting, clerical and other services to carry out this Plan. The
Company shall pay all expenses of the Administrative Committee.

     10.3. Interpretation of Provisions. The Administrative Committee shall have
the exclusive right and discretionary authority to interpret the provisions of
this Plan and to decide questions arising in its administration including, but
not limited to, questions of eligibility for Plan benefits. Administrative
Committee's decisions and interpretations shall be final, binding and conclusive
on the Company, its Employees and all other persons.

     10.4. Records of Administration. The Administrative Committee shall
maintain Plan administration records. These records are subject to audit by the
Company.

     10.5. Denial of Claim. The Administrative Committee shall provide adequate
written notice to any Employee or beneficiary whose claim for Plan benefits has
been denied, setting forth the specific reasons for the denial. The
Administrative Committee will give the Employee or beneficiary an opportunity
for a full and fair review of the decision denying the claim. The Employee or
beneficiary shall have 60 days from the date of the notice denying the claim to
request a full and fair review.

     10.6. Liability of Committee. No member of the Administrative Committee
shall be liable for any action taken in good faith or for exercising any power
given to the Administrative Committee or for the actions of other Committee
members.

            Section 11. Facility of Payment and Lapse of Benefits.

     11.1. Provision for Incapacity. If the Administrative Committee deems that
any person entitled to receive any Plan payment is incapable of receiving or
disbursing the payment because of minority, illness or infirmity, mental
incompetency, or incapacity of any kind, the Committee, in its sole discretion,
may take any one or more of the following actions: it may apply the payment
directly for the person's comfort, support and maintenance; it may reimburse any
other person for support supplied to the person entitled to receive any payment;
or it may pay the payment to any other person the Committee selects to disburse
the payment for the comfort, support and maintenance of the person entitled to
the payment, including, without limitation, to any relative who has wholly or
partially undertaken the expense of the person's comfort, care and maintenance,
or any institution which is caring for or which has custody of the person
entitled to the payment. The Administrative Committee, in its sole discretion,
may deposit any payment due to a minor to the minor's credit in any savings or
commercial bank of the Committee's choice.

     11.2. Payments or Deposits. Payments or deposits made under this Section 11
shall completely discharge, to the extent of the payment, all liability of the
Administrative Committee, the Company and this Executive Supplementary Savings
Plan under this Plan or otherwise. A person's receipt of any payment,
distribution or deposit shall be a complete acquittance and there shall be no
liability to see to the application of any payments, distributions or deposits
made.

                                       3
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                        Section 12. General Provisions.

     12.1. Unfunded Benefit Plan. This Executive Supplementary Savings Plan is
intended to be an unfunded plan maintained primarily for the purpose of
providing deferred compensation to a select group of management or highly
compensated employees.

     12.2. Payments and Benefits Not Assignable. Benefits under this Plan are
not assignable, transferable or subject to alienation by Employees. Likewise,
payments are not subject to attachment by creditors of, or through legal process
against, the Company, the Administrative Committee, or any Employee.

     12.3. No Right of Employment. Plan provisions shall not give an Employee
the right to be retained in the Company's service nor shall this Plan or any
action taken under it, be construed as an employment contract.

     12.4. Adjustments. At the Company's request, the Administrative Committee,
may adjust an Employee's benefit under this Plan or make other adjustments with
respect to the Employee as required to correct administrative errors or provide
uniform treatment of Employees in a manner consistent with this Plan's intent
and purpose.

                  Section 13. Amendments and Discontinuance.

     13.1. Amendment of Plan. This Plan may be amended from time to time by the
Partnership Governance Committee of the Company.

     13.2. Termination. The Partnership Governance Committee of the Company
reserves the right to terminate this Plan at any time.

     13.3. Effect of Amendment or Termination. No Plan amendment or Plan
termination may adversely affect the benefit payable to any Employee entitled to
receive benefits under this Plan prior to the effective date of the amendment or
termination.

                                       4<PAGE>

                                                                    EXHIBIT 10.6

Equistar Chemicals, LP

________________________________________________________________________________

EXECUTIVE DEFERRAL PLAN

Effective January 1, 1998
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                            Equistar Chemicals, LP
                            Executive Deferral Plan

                               Table of Contents

<TABLE>
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                                                                       Page
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ARTICLE I GENERAL PROVISION.............................................  1
  Section 1.1 Purpose and Intent of Plan................................  1
  Section 1.2 Effective Date of Plan....................................  1
  Section 1.3 Definitions...............................................  1

ARTICLE II PARTICIPATION AND DEFERRAL COMMITMENTS.......................  4
  Section 2.1 Eligibility and Participation.............................  4
  Section 2.2 Forms of Deferral.........................................  4
  Section 2.3 Deferral Elections........................................  4
  Section 2.4 Limitation on Deferral....................................  4
  Section 2.5 Termination of Employment.................................  5
  Section 2.6 Transfers.................................................  5
  Section 2.7 Modification of Deferral Elections........................  5

ARTICLE III DEFERRED COMPENSATION ACCOUNTS..............................  6
  Section 3.1 Accounts..................................................  6
  Section 3.2 Deferred Compensation.....................................  6
  Section 3.3 Interest Rate.............................................  6
  Section 3.4 Determination of Accounts.................................  6
  Section 3.5 Vesting of Accounts.......................................  6
  Section 3.6 Statement of Accounts.....................................  7

ARTICLE IV PLAN BENEFITS................................................  8
  Section 4.1 Basic Plan Benefit........................................  8
  Section 4.2 Form and Time of Retirement Distribution..................  8
  Section 4.3 Form of Distribution Upon Termination of Employment.......  9
  Section 4.4 Survivor Benefits.........................................  9
  Section 4.5 Early Distributions....................................... 11
  Section 4.6 Unscheduled Distributions................................. 11
  Section 4.7 Disability................................................ 12
  Section 4.8 Termination of Employment Due to Special Circumstances.... 12
  Section 4.9 Valuation and Settlement.................................. 13
  Section 4.10 Small Benefit............................................ 13

ARTICLE V DESIGNATION OF BENEFICIARY.................................... 14
  Section 5.1 Designation of Beneficiary................................ 14
  Section 5.2 Failure to Designate Beneficiary.......................... 14

ARTICLE VI ADMINISTRATION............................................... 15
  Section 6.1 Administrative Committee.................................. 15
  Section 6.2 Rules of Conduct; Administrative Provisions............... 15
</TABLE>

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  Section 6.3 Legal, Accounting, Clerical and Other Services............ 15
  Section 6.4 Interpretation of Provisions.............................. 15
  Section 6.5 Records of Administration................................. 15
  Section 6.6 Denial of Claim........................................... 15
  Section 6.7 Liability of Committee.................................... 15

ARTICLE VII AMENDMENT AND DISCONTINUANCE................................ 16
  Section 7.1 Amendment of Plan......................................... 16
  Section 7.2 Termination............................................... 16
  Section 7.3 Effect of Amendment or Termination........................ 16

ARTICLE VIII MISCELLANEOUS.............................................. 17
  Section 8.1 Unfunded Benefit Plan..................................... 17
  Section 8.2 Unsecured General Creditor................................ 17
  Section 8.3 Grantor Trust............................................. 17
  Section 8.4 Payments and Benefits Not Assignable...................... 17
  Section 8.5 No Right of Employment.................................... 17
  Section 8.6 Adjustments............................................... 18
  Section 8.7 Obligation to Company..................................... 18
  Section 8.8 Protective Provisions..................................... 18
  Section 8.9 Gender, Singular and Plural............................... 18
  Section 8.10 Law Governing............................................ 18
  Section 8.11 Notice................................................... 18
  Section 8.12 Successors and Assigns................................... 19
  Section 8.13 Provisions for Incapacity................................ 19
</TABLE>

                                      ii
<PAGE>

                                   ARTICLE I
                               GENERAL PROVISION

Section 1.1  Purpose and Intent of Plan.

     This Plan is intended to provide the opportunity for eligible Employees to
accumulate supplemental funds through the deferral of portions of their regular
salary, Awards and Executive Supplementary Savings Plan benefits for retirement
or special needs prior to retirement.

Section 1.2  Effective Date of Plan.

     This Plan document shall be generally effective as of January 1, 1998 and
shall apply to those Employees who are employed by the Company on or after
January 1, 1998, except to the extent that certain provisions hereof specify
that they are effective as of a different date.

Section 1.3  Definitions.

     Account means a separate bookkeeping account maintained by the Company for
each Employee and which measures and determines the amounts to be paid to the
Employee under the Plan.

     Administrative Committee means the Benefits Administrative Committee of the
Company.

     Awards means immediate cash awards made under the Equistar Chemicals, LP
annual incentive compensation plan for executives or awards under any other plan
for Executives that the Owners Committee of Equistar Chemicals, LP or its
Partnership Governance Committee, has authorized the Company to adopt and has
further authorized awards thereunder to be treated as Awards under this Plan.

     Beneficiary means a person who is entitled to receive an Employee's
interest under this Plan in the event of the Employee's death.

     Code means the Internal Revenue Code of 1986, as amended, including any
successor provisions thereof and any regulations or other guidance promulgated
pursuant thereto by applicable governmental agencies.

     Company means Equistar Chemicals, LP, a Delaware limited partnership, or
its successor.

     Deferral Election means an election made by an Employee to defer Salary,
Awards, and/or ESSP Benefits pursuant to Article II, for which the Employee has
submitted a Participation Agreement to the Company.

     Deferral Period means a maximum number of years, established by the
Administrative Committee in advance of a particular Deferral Election, over
which the Employee elects to defer Salary, Awards and/or ESSP Benefits.  A new
Deferral Period shall normally start each

                                       1
<PAGE>

January 1, except that an Employee who is immediately eligible upon his
commencement of employment or who otherwise attains eligibility following the
Effective Date, shall have his Deferral Period commence 30 days following the
Employee's first day of employment or attainment of eligibility, as applicable.

     Deferred Compensation means the amount of Salary, Awards and/or ESSP
Benefits that a Participant elects to defer pursuant to a Deferral Election.

     Disability means the disability as determined under the provisions of the
Company's Executive Long-Term Disability Plan.

     Early Distribution means a distribution prior to Termination of Employment
pursuant to Section 4.5.

     Effective Date means January 1, 1998.

     Employee means an individual who is a regular salaried employee of the
Company on or after January 1, 1998.

     ERISA means the Employee Retirement Income Security Act of 1974, as
amended, including any successor provisions thereof, and any regulations or
other guidance promulgated pursuant thereto by applicable governmental agencies.

     ESSP Benefits means the benefits under the Company's Executive
Supplementary Savings Plan.

     Financial Hardship means a condition of financial difficulty, determined by
the Administrative Committee, upon advice of counsel, based on written
information supplied by the Employee in accordance with such standards
established by the Administrative Committee from time to time, which condition
is sufficient, in counsel's judgment, to justify a change in payment election
under the Plan without causing receipt of taxable income by any other Plan
Participant before the Participant actually receives his benefit.

     Interest Rate means the interest rate announced by the Company in advance
of the election period for a Plan Year which shall be the interest rate applied
to that Plan year.

     Participant means any Employee who is participating in this Plan as
provided in Article II, and any former Employee who has not received the entire
benefit to which he is entitled under this Plan.

     Participation Agreement means the Deferral Election submitted by a
Participant to the Company prior to the beginning of the Deferral Period.

     Plan means this Executive Deferral Plan.

     Plan Year means each calendar year beginning on January 1 and ending on
December 31.

                                       2
<PAGE>

     Retirement Distribution means a distribution due to Termination of
Employment with a right to an immediate allowance under a retirement plan
maintained by the Company.

     Salary means the Employee's regular, biweekly salary, excluding Awards and
any other special or additional compensatory payments made by the Company.

     Subsidiaries or Affiliates means:

     (a)  All corporations, that are members of a controlled group of
corporations within the meaning of Section 1563(a) of the Code (determined
without regard to Section 1563(a)(4) and Section 1563(e)(3)(C) of said Code) and
of which the Company is then a member, and

     (b)  All trades or businesses, whether or not incorporated, that, under the
regulations prescribed by the Secretary of the Treasury pursuant to Section
210(d) of ERISA, are then under common control with the Company.

     Survivor Benefit means the benefit provided by Section 4.4 in the event of
the Participant's death.

     Termination of Employment means the termination of an Employee's employment
with Equistar Chemicals LP, Lyondell Petrochemical Company and LYONDELL-CITGO
Refining Company Ltd. or any subsidiary or affiliate of any such company.  A
transfer to any such company, to which a Participant voluntarily consents, shall
not be a Termination of Employment for purposes of this Plan.

     Valuation Date means the last day of each month, or such other dates as the
Administrative Committee may determine in its discretion, which may be either
more or less frequent, for the valuation of Participants' Accounts.

     Savings and Investment Plan means the Company's Savings and Investment
Plan.

                                       3
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                                  ARTICLE II
                    PARTICIPATION AND DEFERRAL COMMITMENTS

Section 2.1  Eligibility and Participation.

     (a)  Eligibility.  Eligibility to make a Deferral Election shall be limited
to Executives of the Company (1) who are eligible to receive an Award (2) who
are Participants in the Executive Supplementary Savings Plan or (3) who have
been designated as eligible by a specific resolution of the Administrative
Committee upon recommendation of the Vice President, Human Resources of the
Company.

     (b)  Participation.  An eligible Employee may elect to participate in the
Plan by submitting a Participation Agreement in accordance with rules, including
the time and form of submission, established by the Administrative Committee.

Section 2.2  Forms of Deferral.

     (a)  Basic Deferral. A Participant may elect to defer Salary, Awards and/or
ESSP Benefits in a Participation Agreement subject to any limitations,
conditions or restrictions, such as minimum or maximum amounts that may be
deferred, as the Administrative Committee prescribes in advance of the Deferral
Period.

     (b)  Savings Deferral.  Any amount of Salary that the Participant elected
to contribute to the Savings and Investment Plan during each Deferral period
that was not permitted due to legal restrictions precluding such contributions
and deferrals to the Savings and Investment Plan, other than the limitation on
the amount of deferrals under Section 402(g) of the Code, shall be deferred
under this Plan to the extent that such contributions would have received a
matching Company contribution under the Savings and Investment Plan.  The
Company will contribute an additional amount for amounts deferred during a
Deferral Period under this Subsection (b) based upon the matching Company
contribution formula then in effect under the Savings and Investment Plan.

Section 2.3  Deferral Elections.

     Prior to each Deferral Period, at a time and on a form prescribed by the
Administrative Committee, each Employee may execute an election form to defer
Salary, Awards, and/or ESSP Benefits.  This Deferral Election shall be
irrevocable unless modifications are authorized pursuant to Section 2.7.

Section 2.4  Limitation on Deferral

     Except as permitted for accelerated deferral in Section 2.7(b), Deferral
Elections shall be subject to the following limitations:

     (a)  A Participant may not defer more than 50 percent of his Salary.

                                       4
<PAGE>

     (b)  The minimum amount that may be deferred for the Deferral Period
relating to a Deferral Election shall be established by the Administrative
Committee in advance of the Deferral Period.

Section 2.5  Termination of Employment.

     A Participant's Deferral Elections shall terminate upon the Participant's
Termination of Employment; provided, however, that any Deferral Election
relating to Salary, Awards and/or ESSP Benefits granted after Termination of
Employment shall remain binding.

Section 2.6  Transfers.

     A Participant's Deferral Elections shall be irrevocable regardless of a
transfer of employment among Equistar Chemicals L. P., LYONDELL-CITGO Refining
Company Ltd., Lyondell Petrochemical Company or any subsidiary or affiliate of
any such company.  In the case of such a transfer, the Participant's Deferral
Election shall apply to Awards, Salary or ESSP Benefits granted by the
transferee company and the applicable Plan of the transferee company shall
assume responsibility for the remaining period, if any, of any Deferral Election
that the Participant made under the transferor company's plan.

Section 2.7  Modification of Deferral Elections.

     Deferral Elections shall be irrevocable except as follows:

     (a)  Financial Hardship.  The Administrative Committee may permit a
Participant to either reduce the amount elected under a prior Deferral Election,
or waive the remaining deferrals under a prior Deferral Election, upon finding
that the Participant has suffered a Financial Hardship.

     (b)  Accelerated Deferral.  At the Administrative Committee's discretion,
prior to the beginning of any Plan Year in any Deferral Period for which two or
more Plan Years remain, a Participant may elect to accelerate the amount of
previously elected Deferred Compensation for any of the remaining Plan Years in
that Deferral Period on a form prescribed by the Administrative Committee;
provided, however, that any acceleration in Deferred Compensation for remaining
Plan Years in the Deferral period shall not increase, for any single Plan Year,
the total Salary deferrals above 50 percent of Salary, the total deferred Awards
above 100 percent of an Award or the total deferred ESSP Benefits above 100
percent of the ESSP Benefits during that Plan Year.

                                       5
<PAGE>

                                  ARTICLE III
                        DEFERRED COMPENSATION ACCOUNTS

Section 3.1  Accounts.

     For record-keeping purposes only, Accounts shall be maintained for each
Participant.

Section 3.2  Deferred Compensation.

     A Participant's Deferred Compensation shall be credited to the
Participant's Account as of the date when the corresponding non-deferred portion
of the compensation is paid or would have been paid but for the Deferral
Election.  The Company shall have the right to withhold from Salary (or
otherwise to cause the Employee or the executor or administrator of his estate,
or his Beneficiary) to make payment of any federal, state, local and/or foreign
taxes required to be withheld with respect to any Deferred Compensation.

Section 3.3  Interest Rate.

     The Accounts shall be credited with interest based on the rates specified
below. Interest shall be credited monthly as of each Valuation Date from the
dates when deferred amounts are credited to Accounts, based on the balance of
each Account.

     (a)  Interest Rate During Participant's Lifetime.  During a Participant's
lifetime, the Participant's Account will be credited with interest on a monthly
basis during each Plan Year at the Interest Rate previously announced by the
Company to apply during the Plan Year.  The monthly Interest Rate during the
1998 Plan Year shall be based on the previous monthly average of the Moody's
Investment Grade Baa Bond Yield Index.

     (b)  Interest Rate After Participant's Death.  Except with respect to
payments made pursuant to Article IV, Section 4.4(a)(2)(i) following a
Participant's death, the Participant's Account will be credited with interest on
a monthly basis during each Plan Year at the Interest Rate previously announced
by the Company to apply during the Plan Year.

Section 3.4  Determination of Accounts.

     A Participant's Account as of each Valuation Date shall consist of the
balance of the Participant's Account as of the immediately preceding Valuation
Date, plus the amount of the Participant's Deferred Compensation since Valuation
Date, plus interest credited to the Account, and minus any distributions or
reductions made from the Account since the immediately preceding Valuation Date.

Section 3.5  Vesting of Accounts.

     Each Participant shall be 100 percent vested at all times in the amounts
credited to the Participant's Account.

                                       6
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Section 3.6  Statement of Accounts.

     The Company shall provide each Participant with periodic statements setting
forth the balance of the Participant's Account.

                                       7
<PAGE>

                                  ARTICLE IV
                                 PLAN BENEFITS

Section 4.1  Basic Plan Benefit.

     If a Participant has a Termination of Employment for any reason, the
Company shall pay a Plan benefit equal to the Participant's Account, as
determined below:

     (a)  Accounts of Participants shall be credited with the interest rate
previously determined under Section 3.3(a) and communicated in advance of each
deferral Period, to apply each Plan Year that the Account has been maintained.

     (b)  The Interest Rates provided under Section 4.1(a) shall be payable
until the Participant's Account is distributed in full.

Section 4.2  Form and Time of Retirement Distribution.

     (a)  Time of Retirement Distributions.  Retirement Distributions shall be
paid at the time and in the form of benefit elected by the Participant.  If a
Participant is an Employee, the Participant may change a distribution election
once each year until the year in which the Participant attains age 53.  The
change must be made during a period established by the Administrative Committee
which precedes a Deferral Period and is irrevocable until the next period
established by the Administrative Committee.

     The Participant's distribution election shall be irrevocable as of the year
in which a Participant attains age 53, except that a Participant may request, in
writing, that the Administrative Committee allow a change in distribution
election prior to retirement or commencement of benefits, or in the case of
installment payments, following commencement of payments, (i) without any
reduction in, or imposition of any penalty on, the Participant's Account, if the
Administrative Committee determines that the Participant has experienced a
Financial Hardship justifying the request for a change of election, or (ii) if
the Administrative Committee, in its sole discretion, determines that it is
appropriate to grant the Participant's request.  Absent the Participant's
election of the form and/or commencement date of the Retirement Distribution,
payment will be made in a lump sum immediately following the Participant's date
of retirement from the Company.

     (b)  Form of Retirement Distributions.  A Participant may elect one or more
of the following forms and commencement dates for all or portions of his
Deferral Account:

          (1)  Lump Sum.  A single payment of all or a percentage of, or of a
specific dollar amount of, the Participant's Deferral Account, payable at
retirement.

          (2)  Installment Payments.  Monthly installment payments in
substantially equal payments of principal and interest over periods prescribed
and communicated by the Administrative Committee in advance of the applicable
Deferral period.  The amount of each of the monthly installments shall be re-
determined effective as of January 1 of each year based on the remaining Account
balance and the remaining number of installment payments.

                                       8
<PAGE>

          (3)  Deferred Payments.  A lump sum or installment payments or
combination thereof, commencing subsequent to retirement at one of the optional
deferral times prescribed and communicated by the Administrative Committee in
advance of the applicable Deferral Period.

Section 4.3  Form of Distribution Upon Termination of Employment.

     Except as provided in Sections 4.8, termination benefits payable upon a
Participant's Termination of Employment other than due to retirement or death
shall be paid in a lump sum following Termination of Employment; provided,
however, that the Administrative Committee may, in its sole discretion, pay such
termination benefits in monthly installments over a 3-year period.

Section 4.4  Survivor Benefits.

     (a)  Amount and Form of Benefit On and After July 1, 1993:

          (1)  Death After Age 65. If the Participant dies on or after attaining
age 65, the amount of the Survivor Benefit shall be equal to the Participant's
Account balance, increased by the applicable Interest Rate on the unpaid Account
balance during the period in which Survivor Benefit payments are being made to
the Participant's Beneficiary, and payable in the form elected by the
Participant.

          (2)  Death Prior to Termination of Employment and Prior to Age 65.

          (i)  Benefit Determination.  If a Participant dies prior to attaining
     age 65 and prior to Termination of Employment, the Survivor Benefit payable
     with respect to such Participant shall be the greater of the values
     determined under (A) or (B) immediately below:

               (A)  The net present value of a stream of annual payments which
          equals 40 percent of the Participant's Account, and which are payable
          on the date of the Participant's death and on each anniversary of such
          date until the date on which the Participant would have attained age
          65.  For purposes of this calculation (I) the applicable discount rate
          shall be determined by the Administrative Committee, in its sole
          discretion, and (II) Deferral Elections that have not been completed
          prior to the Participant's death shall be determined in accordance
          with the provisions of Section 4.4(a)(2)(i)(c) below; or

               (B)  The value of the Participant's Account balance at his date
          of death.

               (C)  For purposes of calculating the deferred amount where a
          Participant has died before he completes his Deferral Elections, the
          Participant's Salary (for purposes of determining the amount deferred
          with respect to either Salary or ESSP Benefits) and Awards for
          relevant years or other time periods ending after this death shall be
          deemed to be as follows:

                                       9
<PAGE>

                    (I)  Salary for each year or time period shall be the
               Participant's annual base Salary in effect on the date of his
               death, increased for each year after his death by the escalation
               factor for such year, determined in the sole discretion of the
               Administrative Committee; and

                    (II) Awards for each such year shall be the amount that is
               the highest annual average of the Participant's Awards paid in
               any 3 consecutive year period during the last ten years during
               which the Participant received Awards from the Company or, for
               years prior to the Effective Date, from a Subsidiary or Affiliate
               (or if fewer than ten, the total number of years for which the
               Participant received Awards).

          (ii) Amount and Form of Payment.

               (A)  The annual Survivor Benefit payable with respect to Section
          4.4(a)(2)(i)(A) shall be equal to 40 percent of the value of the
          Account, as determined in accordance with Section 4.4(a)(2)(i)(A) and,
          to the extent applicable, with Section 4.4(a)(2)(i)(C).  One-twelfth
          of the annual Survivor Benefit shall be paid monthly from the
          Participant's date of death until the end of the month in which the
          Participant would have attained age 65.

               (B)  The Survivor Benefit payable with respect to Section
          4.4(a)(2)(i)(B) shall be the value of the Participant's Account
          balance at his date of death, increased by the applicable Interest
          Rate on the unpaid Account balance during the period in which Survivor
          Benefit payments are being made to the Participant's Beneficiary, and
          shall be paid in monthly installments over the greater of:

                    (I)  the period described in Section 4.4(a)(2)(ii)(A); or

                    (II) the period over which the Participant had elected to
               have installment payments made after his retirement.

               (C)  Notwithstanding any other provision of this Plan, if the
          Survivor Benefit payable is the amount determined under Section
          4.4(a)(2)(ii)(A), and if the Participant completed (or, pursuant to
          Section 4.4(a)(2)(i)(C), is deemed to have completed) a portion of a
          Deferral Election while an employee at Lyondell Petrochemical Company
          and a portion of such Deferral Election while a Participant in this
          Plan, then the annual amount of the Survivor Benefit determined
          pursuant to Section 4.4(a)(2)(ii)(A) shall be equal to the product of
          (I) the amount of the Survivor Benefit determined pursuant to Section
          4.4(a)(2)(ii)(A), multiplied by (II) a fraction, the numerator of
          which is equal to the portion of the Deferral Elections that the
          Participant completed (or, pursuant to Section 4.4(a)(2)(i)(C), is
          deemed to have

                                       10
<PAGE>

          completed) under this Plan and under the Lyondell Petrochemical
          Company Executive Deferral Plan. An example of the determination of
          the Survivor Benefit and the proration of that Benefit between the
          Company and Lyondell Petrochemical Company is attached hereto as
          Appendix A.

     (b)  Death After Termination of Employment and Prior to Age 65. If the
Participant dies after Termination of Employment and prior to age 65, the
Participant's Account balance shall be paid by continuation of the form of
benefit that was payable to the Participant for the remaining payments that
would have been made to the Participant if the Participant had lived, increased
by the applicable Interest Rate credited on unpaid Account balances of deceased
Participants during each year of the payment period to the Beneficiary.

Section 4.5 Early Distributions.

     A Participant may elect to receive an Early Distribution from his Account
subject to the following restrictions:

     (a)  Timing of Election.  The election to take an Early Distribution from
an Account for a particular Deferral Election must be made at the same time the
Participant makes the particular Deferral Election.

     (b)  Amount of Withdrawal.  The amount which a Participant can elect to
receive as an Early Distribution with respect to an Account shall be such
portions of the Participant's Account balance for the amounts deferred under a
particular Deferral Election, as prescribed by the Administrative Committee in
advance of the Deferral Period. If a previously elected amount exceeds the
Account balance when an Early Distribution is to be made, only the Account
balance will be paid.

     (c)  Timing and Form of Early Distribution.  The Early Distribution shall
commence at a time prescribed by the Administrative Committee and in the form
elected by the Participant on the Participation Agreement at the time of the
Deferral Election; provided, however, that if the Participant terminates
employment without a right to commence a retirement allowance under the
Retirement Plan, the Early Distribution election will be canceled and
distribution will be made pursuant to Section 4.3; and provided, further, that
if the Participant terminates employment with a right to commence a retirement
allowance, the Early Distribution election will be canceled and distribution
will be made pursuant to Section 4.2.

     (d)  Amounts paid to a Participant pursuant to this section shall be
treated as distributions from the Participant's Account.

Section 4.6 Unscheduled Distributions.

     (a)  Distributions on Account of Financial Hardship.  Upon a finding that a
Participant has suffered a Financial Hardship, following the Participant's
written application, the Administrative Committee shall make a distribution of
all or a portion of the Participant's Account, consistent with the finding of
Financial Hardship but not to exceed the amount of the Participant's request,
without any reduction in, or imposition of any penalty on, the Participant's

                                       11
<PAGE>

Account. The distribution shall be paid in a lump sum as soon as
administratively practical following the finding of Financial Hardship.

     (b)  Other Unscheduled Distributions.  A Participant, by a written
application to the Administrative Committee, may apply for a distribution of all
or part of his/her Account, without regard to any condition of Financial
Hardship. Any distribution so requested shall be made as soon as practical
following the Participant's application and shall be subject to whatever
penalty, in the form of a forfeiture of a percentage of the amount requested
and/or a suspension of participation, as may be determined by the Administrative
Committee, upon the advice of Counsel for the Plan, to be necessary to preclude
the constructive receipt of taxable income by any Participant in the Plan.

     (c)  Review of the Request for Unscheduled Distributions.  Counsel for the
Plan, on an ongoing basis, shall review legal and tax developments to assure
continuous compliance with the relevant authorities governing plan design to
prevent constructive receipt of taxable income by any Participant, and shall
advise the Administrative Committee in writing in advance of any change in its
most recent written advice on the penalty that is to be imposed with respect to
unscheduled distributions.

     The Company shall notify Participants in writing of the provisions of this
Section 4.6 and of the specific, currently effective penalty as described under
Section 4.6(b), and shall update this written notification periodically and in
advance of any subsequent change of which it is notified under Section 4.6(c),
unless in the opinion of the Company it is administratively impractical to do
so, in which case such notification shall be provided no later than30 days
following the effective date of the change.

Section 4.7 Disability.

     If a Participant suffers a Disability under the provisions of the Company's
Executive Long-Term Disability Plan, the Participant's Deferral Elections will
cease except for any awards that may be payable thereafter. Distribution of the
Participant's Account will not be made due to the Disability. The Participant's
Account will be distributed in accordance with the method that the Participant
had elected for payment of retirement benefits if and when the Participant
retires following his Disability. Absent the Participant's retirement election,
payment will be made in a lump sum upon Termination of Employment.

Section 4.8 Termination of Employment Due to Special Circumstances.

     If a Participant has an involuntary Termination of Employment in
conjunction with a sale of assets or a reorganization (including termination due
to a specific job elimination), the Participant's Account will be distributed in
accordance with the method which the Participant had elected for payment of
retirement benefits under this Plan, with payment commencing on the earliest
date the Participant would have become eligible to commence receiving the
retirement benefit hereunder. During the period between the Participant's
Termination of Employment and the commencement of payments under this Plan,
interest will be credited to the Participant's Account each year at the
applicable rate of interest for Accounts of living Participants. Absent

                                       12
<PAGE>

the Participant's election with respect to the form of benefit to be paid by
this Plan at or after his retirement, payment will be made in a lump sum upon
Termination of Employment.

Section 4.9  Valuation and Settlement.

     The Settlement Date shall be the earlier of the date on which a lump sum is
paid or on which installment payments commence. The Settlement Date for an
Account shall be no more than 30 days after the last day of the month in which
the Participant or his Beneficiary becomes entitled to payments on account of
retirement, other Termination of Employment or death, unless the Participant has
elected to defer commencement of payments following retirement to a later date.
The Settlement Date for an Early Distribution or delayed payments following
retirement shall be the month that the Participant has elected for commencement
of such payments. The amount of a lump sum and the initial amount of installment
payments for a Participant's Account shall be based on the value of the
Participant's Account as of the valuation Date at the end of the immediately
preceding month before the Settlement Date. For example, the Valuation Date at
the end of December shall be used to determine a lump sum and/or the initial
amount of installment payments that will be made in the following January.

Section 4.10 Small Benefit.

     Notwithstanding any election made by the Participant, the Administrative
Committee, in its sole discretion, may pay any benefit in the form of a lump sum
payment to the Participant or any Beneficiary, if the lump sum amount of the
Account balance that remains in the Account following a distribution for any
reason, or which is payable to the Participant or Beneficiary when payments to
such Participant or Beneficiary would otherwise commence is less than $6,000.

                                       13
<PAGE>

                                   ARTICLE V
                          DESIGNATION OF BENEFICIARY

Section 5.1 Designation of Beneficiary.

     Each Participant shall have the right to designate a Beneficiary or
Beneficiaries to receive his interest in his Account upon his death. Such
designation shall be made on a form prescribed by and delivered to the Company.
The Participant shall have the right to change or revoke any such designation
from time to time by filing a new designation or notice of revocation with the
Company, and no notice to any Beneficiary nor consent by any Beneficiary shall
be required to effect any such change or revocation.

Section 5.2 Failure to Designate Beneficiary.

     If a Participant fails to designate a Beneficiary before his death, or if
no designated Beneficiary survives the Participant, the Administrative Committee
shall direct the Company to pay the balance in his Account in a lump sum to the
executor or administrator for his estate.

                                       14
<PAGE>

                                  ARTICLE VI
                                ADMINISTRATION

Section 6.1 Administrative Committee.

     The Benefits Administrative Committee for the Company shall act as this
Plan's Administrative Committee.

Section 6.2 Rules of Conduct; Administrative Provisions.

     The Administrative Committee shall adopt such rules for the conduct of its
business and the administration of this Plan as it considers desirable;
provided, however, that such rules shall not conflict with the provisions of
this Plan. Except as otherwise specifically provided in this Plan, all of the
administrative provisions (such as the benefit claims procedures) contained in
the Savings and Investment Plan shall apply to the administration of this Plan.

Section 6.3 Legal, Accounting, Clerical and Other Services.

     The Administrative Committee may authorize one or more of its members or
any agent to act on its behalf and may contract for legal, accounting, clerical
and other services to carry out this Plan. All expenses of the Administrative
Committee shall be paid by the Company.

Section 6.4 Interpretation of Provisions.

     The Administrative Committee shall have the exclusive right and
discretionary authority to interpret the provisions of this Plan and to decide
questions arising in its administration. The decisions and interpretations of
the Administrative Committee shall be final and binding on the Company,
Employees and all other persons.

Section 6.5 Records of Administration.

     The Administrative Committee shall keep records reflecting the
administration of this Plan which shall be subject to audit by the Company.

Section 6.6 Denial of Claim.

     The Administrative Committee shall provide adequate notice in writing to
any Employee or Beneficiary whose claim for benefits under this Plan has been
denied, setting forth the specific reasons for such denial. The Employee or
Beneficiary will be given an opportunity for a full and fair review by the
Administrative Committee of the decision denying the claim. The Employee or
Beneficiary shall be given 60 days from the date of the notice denying any such
claim within which to request such review.

Section 6.7 Liability of Committee.

     No member of the Administrative Committee shall be liable for any action
taken in good faith or for exercise of any power given the Administrative
Committee, or for the actions of other members of said Committee.

                                       15
<PAGE>

                                  ARTICLE VII
                         AMENDMENT AND DISCONTINUANCE

Section 7.1 Amendment of Plan.

     This Plan may be amended from time to time by the Partnership Governance
Committee of the Owners Committee of the Company.

Section 7.2 Termination.

     The Company intends to continue this Plan indefinitely, but reserves the
right to terminate it at any time for any reason.

Section 7.3 Effect of Amendment or Termination.

     No amendment or termination of this Plan may adversely affect the benefit
payable to any former Employee receiving benefits under this Plan prior to the
effective date of the amendment or termination, or any Employee who, as of such
date, was eligible to receive a benefit under this Plan.

                                       16
<PAGE>

                                 ARTICLE VIII
                                 MISCELLANEOUS

Section 8.1 Unfunded Benefit Plan.

     This Plan is intended to constitute a plan which is unfunded and maintained
primarily for the purpose of providing deferred compensation in the form of
additional retirement benefits to a select group of management or highly
compensated employees, as defined in Section 201(a)(2), 301(a)(3) and 401(a)(1)
of ERISA.

Section 8.2 Unsecured General Creditor.

     Participants and their Beneficiaries shall have no legal or equitable
rights, claims or interests in any specific assets or property of the Company,
nor shall they be the Beneficiaries of, or have any rights, claims or interests
in any life insurance policies, annuity contracts, or the proceeds therefrom
owned, or which may be acquired by, the Company (the "Policies"). Any such
Policies or other assets of the Company shall be, and remain, the general,
unplugged, unrestricted assets of the Company. The Company's obligation under
the Plan shall be merely that of an unfunded and unsecured promise of the
Company to pay money in the future.

Section 8.3 Grantor Trust.

     Although the Company is responsible for the payment of all benefits under
the Plan, the Company may, in its discretion, contribute funds to a grantor
trust for the purpose, as it deems appropriate, of paying benefits under this
Plan. Such trust may be irrevocable, but assets of the trust shall be subject to
the claims of creditors of Equistar Chemicals, LP. To the extent any benefits
provided under the Plan are actually paid from the trust, the Company shall have
no further obligation with respect thereto but to the extent not so paid, such
benefits shall remain the obligation of, and shall be paid by, the Company. The
Employees shall have the status of unsecured creditors insofar as their legal
claim for benefits under the Plan and the Employees shall have no security
interest in the grantor trust.

Section 8.4 Payments and Benefits Not Assignable.

     Payments to and benefits under this Plan are not assignable, transferable
or subject to alienation since they are primarily for the support and
maintenance of the Participants and their joint annuitants or Beneficiaries
after retirement. Likewise, such payments shall not be subject to attachments by
creditors of, or through legal process against, the Company, the Administrative
Committee or Participant.

Section 8.5 No Right of Employment.

     The provisions of this Plan shall not give an Employee the right to be
retained in the service of the Company nor shall this Plan or any action taken
under the Plan be construed as a contract of employment.

                                       17
<PAGE>

Section 8.6  Adjustments.

     At the Company's request, the Administrative Committee may, with respect to
a Participant, adjust such Participant's benefit under this Plan or make such
other adjustments with respect to such Participant as are required to correct
administrative errors or provide uniform treatment of Participants in a manner
consistent with the intent and purpose of this Plan.

Section 8.7  Obligation to Company.

     If a Participant becomes entitled to a distribution of benefits under the
Plan, and if at such time the Participant has outstanding any debt, obligation,
or other liability representing an amount owing to the Company, or any benefit
plan maintained by the Company, then the Company may offset such amount owed to
it or such benefit plan against the amount of benefits otherwise distributable.
Such determination shall be made by the Administrative Committee.

Section 8.8  Protective Provisions.

     Each Participant shall cooperate with the Company by furnishing any and all
information requested by the Company in order to facilitate the payment of
benefits hereunder, taking such physical examinations as the Company may deem
necessary and taking such other relevant action as may be requested by the
Company. If a Participant refuses to cooperate, the Company shall have no
further obligation to the Participant under the Plan. If the Participant makes
any material misstatement of information or nondisclosure of medical history,
then no benefits will be payable hereunder to such Participant or his
Beneficiary, provided, that in the Company's sole discretion, benefits may be
payable in an amount reduced to compensate the Company for any loss, cost,
damage or expense suffered or incurred by the Company as a result in any way of
any such action, misstatement or nondisclosure.

Section 8.9  Gender, Singular and Plural.

     All pronouns and any variations thereof shall be deemed to refer to the
masculine, feminine, or neuter, as the identity of the person or persons may
require. As the context may require, the singular may be read as the plural and
the plural as the singular.

Section 8.10 Law Governing.

     This Plan shall be construed, regulated and administered under the laws of
the State of Texas, except to the extent that such laws are preempted by ERISA.

Section 8.11 Notice.

     Any notice or filing required or permitted to be given to the
Administrative Committee under the Plan shall be sufficient if in writing and
hand delivered, or sent by registered or certified mail, to the principal office
of the Company, directed to the attention of the Secretary of the Administrative
Committee. Such notice shall be deemed given as to the date of delivery or, if
delivery is made by mail, as of the date shown on the postmark on the receipt
for registration or certification.

                                       18
<PAGE>

Section 8.12 Successors and Assigns.

     This Plan shall be binding upon the Company and its successors and assigns.

Section 8.13 Provisions for Incapacity.

     If the Administrative Committee deems any person entitled to receive any
payment under the provisions of this Plan incapable of receiving or disbursing
the same by reason of minority, illness or infirmity, mental incompetency, or
incapacity of any kind, the Administrative Committee may, in its sole
discretion, take any one or more of the following actions: it may apply such
payment directly for the comfort, support and maintenance of such person; it may
reimburse any person for any such support theretofore supplied to the person
entitled to receive any such payment; or it may pay such payment to any other
person selected by the Administrative Committee to disburse such payment for the
comfort, support and maintenance of the person entitled thereto, including,
without limitations, to any relative who has undertaken, wholly or partially,
the expense of such person's comfort, care and maintenance, or any institution
in whose care or custody the person entitled to the payment may be. The
Administrative Committee may, in its sole discretion, deposit any payment due to
a minor to the minor's credit in any savings or commercial bank of the
Administrative Committee's choice.

                                       19
<PAGE>

                                  APPENDIX A

            EXAMPLE OF SURVIVOR BENEFIT DETERMINATION AND PRORATION

John Doe: Current Age - 49
Presumed to die on July 1, 2000

                -----------------------------------------------
                            Award         % Deferred    Amount
                -----------------------------------------------
                1998        $39,000       100%          $39,000
                -----------------------------------------------
                1999            -0-        10%              -0-
                -----------------------------------------------
                2000        $60,000        10%          $ 6,000
                -----------------------------------------------
                2001        $60,000        10%          $ 7,000
                -----------------------------------------------
                2002        $70,000        10%          $ 7,000
                -----------------------------------------------
                Total                                   $58,000
                -----------------------------------------------

                -----------------------------------------------
                            Base Salary   % Deferred    Amount
                -----------------------------------------------
                1997        $140,000      20%           $28,000
                -----------------------------------------------
                1998        $164,000       0%               -0-
                -----------------------------------------------
                1999        $170,000      10%           $17,000
                -----------------------------------------------
                2000         180,000      10%           $18,000
                -----------------------------------------------
                2001         190,000      10%           $19,000
                -----------------------------------------------
                Total                                   $82,000
                -----------------------------------------------

Calculation of Survivor Benefit - Greater of:

          (a)  40 percent of Deferral Election

               $58,000 + $82,000 = $140,000*40% = $56,000 per year for 15 years.

               The present value of this benefit would be determined by
               multiplying the annual benefit ($56,000) by the number of years
               the payment is to be made (15) and then applying a discount rate.

               If the discount rate is 7.8%, the present value of this benefit
               would be approximately $500,000.

          (b)  Actual Account Balance

               Amounts deferred:

               $39,000 + $6,000 + $28,000 + $17,000 + $9,000 = $ 99,000

               Interest (est.)                                     $ 21,000
                                                                   --------
               Total                                               $120,000

               $120,000 paid out over 15 years

               The annual Survivor Benefit would be $56,000 for 15 years as (a)
               is greater than (b).

Proration of the Annual Survivor Benefit between Company and Lyondell
Petrochemical Company:

          Company's Share: $56,000*75.5/140 = $30,200

          Lyondell Petrochemical Company's Share: $56,000*64.5/140 = $25,800

                                       20

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