Document:

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                                                                   EXHIBIT 10.21

                                 October 4, 2001

PERSONAL & CONFIDENTIAL

Mr. James J. Postl
Pennzoil-Quaker State Company
31st Floor, North Tower
700 Milam
Houston, Texas 77002

Dear Mr. Postl:

          You have previously been or may be designated a participant in the
Pennzoil-Quaker State Company Supplemental Life Insurance Plan (the
"Supplemental Life Insurance Plan"), the Pennzoil-Quaker State Company Medical
Expense Reimbursement Plan (the "Medical Plan") and current and future stock
option plans and you have entered into a Deferred Compensation Agreement, dated
May 4, 2000, as amended by the First and Second Amendment thereto, dated July
13, 2000, and September 20, 2001, respectively, and as may be subsequently
amended from time to time (the "DCA"), pursuant to the terms of the
Pennzoil-Quaker State Company Deferred Compensation Plan. In addition, you are
eligible to participate in the Pennzoil-Quaker State Company Savings and
Investment Plan (the "Savings and Investment Plan") and the Pennzoil-Quaker
State Company Salaried Employees Retirement Plan (the "Retirement Plan"). Your
designation as a participant or an eligible participant and participation in
these plans has been and is intended by the Company as additional compensation.
The Company intends that you not be unfairly deprived of the opportunity to
fulfill service and age prerequisites to entitlement to receipt of benefits in
the described plans because of or in connection with a change in control of the
Company. Accordingly, you and the Company previously entered into an agreement
dated as of September 20, 2001, relating to certain cash-out benefits in the
event of a change in control of the Company (the "Prior Agreement"). It is
intended that the Prior Agreement be superseded by this Agreement effective as
of the date hereof.

          Accordingly, in consideration of your agreement to remain in continued
employment with the Company as President and Chief Executive Officer of the
Company, or in such other executive capacity as may be determined from time to
time by the Board of Directors of the Company (the "Board") and your agreement
to devote your normal working time to the business interests and activities of
the Company and to perform the duties and responsibilities assigned to you by
the Board to the best of your ability and with reasonable diligence, in the
event of a Change in Control (as defined in Paragraph III below), you will be
entitled to the cash

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payments described in Paragraph I below. In addition, in the event that your
employment is terminated upon or within three years following the Change in
Control Effective Date (as defined in Paragraph III below), you will be entitled
to the continued life insurance, medical expense reimbursement benefits and cash
payments described in Paragraph II below.

     I. In the event that a Change in Control occurs, you will receive from the
Company forthwith following the Change in Control Effective Date, a cash payment
equal to the amount determined by adding, for each share of Common Stock (as
defined in Paragraph III below) as to which a nonqualified option granted you
under any stock option plan of the Company is not exercisable on the Change in
Control Effective Date, the excess of the Value (as defined in Paragraph III
below) of such Common Stock over the option price of such share; provided,
however, that to the extent any such option has become exercisable and been
exercised before the amount described in this Paragraph I is paid to you, you
shall not receive any payment under this Paragraph I in lieu of such option.

     II. In the event that your employment with the Company is terminated,
whether voluntarily or involuntarily for any reason other than death, upon or
within three years following the Change in Control Effective Date:

          1. Equal to the present value as of your termination date of any
     benefits payable to you, your spouse or dependents under paragraphs 3, 4,
     and 5 of the DCA, discounting at the lesser of the rate used in the
     Retirement Plan in the year of distribution as applied to a lump sum
     payment or 7 1/2% annual effective rate of interest and assuming that (a)
     your employment with the Company had continued uninterrupted until you had
     attained age 65 at a monthly remuneration equal to your monthly salary as
     in effect on your termination date; (b) the monthly payments of deferred
     compensation commenced on your termination date; (c) Social Security
     benefits were calculated assuming that the United States Social Security
     laws and your earnings as in effect on your termination date continued in
     effect without change; (d) you would accrue no further benefits under any
     of the Company's or any other former employer's retirement or other benefit
     plans (whether or not in the form of monthly payments) after your
     termination date; (e) the life expectancies for you and your spouse as of
     your termination date are in accordance with the 1983 Group Annuity
     Mortality table (based upon a fixed blend of 50% of the male mortality and
     50% of the female mortality); (f) the monthly premiums for your coverage
     under the Medical Plan as of the Change in Control Effective Date increased
     at 7 1/2% per annum and that the medical programs of the Company, the
     United States Social Security, Medicare, or Medicaid, or any analogous
     state or federal programs as in effect on your termination date continued
     in effect without change.

               In determining the cash payment to which you are entitled
     pursuant to this Paragraph II(1) hereof in lieu of any benefits payable to
     you or your spouse

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     under the DCA, the Company shall follow the procedures set forth in that
     certain instrument entitled the "Pennzoil-Quaker State Company Benefit
     Acceleration Agreement Administrative Procedures," dated March 1999
     (prepared by William M. Mercer, Incorporated) and maintained on file as an
     official record of the Company by the Vice President, Compensation and
     Benefits of the Company, and such procedures, including any examples or
     instructions contained therein, are hereby incorporated by reference as if
     fully set forth herein and shall constitute a part of this Agreement
     between you and the Company.

          2. You will receive from the Company forthwith a cash payment equal to
     the sum of the Value of the Common Stock and other assets credited to your
     accounts maintained pursuant to the Savings and Investment Plan that are
     not vested on the date of your termination of employment.

          3. Both the life insurance coverage provided you under the
     Supplemental Life Insurance Plan in effect on the Change in Control
     Effective Date and the medical expense coverage provided you, your spouse
     and dependents under the Medical Plan in effect on the Change in Control
     Effective Date shall be continued for one year after your termination date.

     III. For purposes of this Agreement, the following definitions shall apply:

          1. "Beneficial Owner" shall have the meaning set forth in Rule 13d-3
     promulgated under the Exchange Act.

          2. A "Change in Control" of the Company shall conclusively be deemed
     to have occurred if an event set forth in any one of the following
     paragraphs shall have occurred:

          (a) any Person is or becomes the Beneficial Owner, directly or
     indirectly, of securities of the Company (not including in the securities
     beneficially owned by such Person any securities acquired directly from the
     Company or its affiliates) representing 35% or more of the combined voting
     power of the Company's then outstanding securities; or

          (b) the following individuals cease for any reason to constitute a
     majority of the number of directors then serving: individuals who, on the
     date hereof, constitute the Board and any new director (other than a
     director whose initial assumption of office is in connection with an actual
     or threatened election contest relating to the election of directors of the
     Company) whose appointment or election by the Board or nomination for
     election by the Company's stockholders was approved or recommended by a
     vote of at least two-thirds (2/3) of the directors then still in office who
     either were directors on the date hereof or

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     whose appointment, election or nomination for election was previously so
     approved or recommended; or

          (c) there is consummated a merger or consolidation of the Company or
     any direct or indirect subsidiary of the Company with any other
     corporation, other than (i) a merger or consolidation which would result in
     the voting securities of the Company outstanding immediately prior to such
     merger or consolidation continuing to represent (either by remaining
     outstanding or by being converted into voting securities of the surviving
     entity or any parent thereof), in combination with the ownership of any
     trustee or other fiduciary holding securities under an employee benefit
     plan of the Company or any subsidiary of the Company, at least 50% of the
     combined voting power of the securities of the Company or such surviving
     entity or any parent thereof outstanding immediately after such merger or
     consolidation, or (ii) a merger or consolidation effected to implement a
     recapitalization of the Company (or similar transaction) in which no Person
     is or becomes the Beneficial Owner, directly or indirectly, of securities
     of the Company (not including in the securities Beneficially Owned by such
     Person any securities acquired directly from the Company or any of its
     affiliates other than in connection with the acquisition by the Company or
     any of its affiliates of a business) representing 35% or more of the
     combined voting power of the Company's then outstanding securities; or

          (d) the stockholders of the Company approve a plan of complete
     liquidation or dissolution of the Company or there is consummated an
     agreement for the sale or disposition by the Company of all or
     substantially all of the Company's assets, other than a sale or disposition
     by the Company of all or substantially all of the Company's assets to an
     entity, at least 50% of the combined voting power of the voting securities
     of which are owned by stockholders of the Company in substantially the same
     proportions as their ownership of the Company immediately prior to such
     sale.

     Notwithstanding the foregoing, a "Change in Control" shall not be deemed to
     have occurred by virtue of the consummation of any transaction or series of
     integrated transactions immediately following which the record holders of
     the Common Stock of the Company immediately prior to such transaction or
     series of transactions continue to have substantially the same
     proportionate ownership in an entity which owns all or substantially all of
     the assets of the Company immediately following such transaction or series
     of transactions.

          3. "Common Stock" shall mean the common stock, par value $0.10 per
     share, of the Company.

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          4. "Change in Control Effective Date" shall be:

          (a) the first date that the direct or indirect ownership of 35% or
     more combined voting power of the Company's outstanding securities results
     in a Change in Control as described in Paragraph III(2)(a) above; or

          (b) the date of the election of directors that results in a Change in
     Control as described in Paragraph III(2)(b) above; or

          (c) the date of the merger or consideration that results in a Change
     in Control as described in Paragraph III(2)(c) above; or

          (d) the date of stockholder approval that results in a Change in
     Control as described in Paragraph III(2)(d) above.

          5. "Exchange Act" means the Securities Exchange Act of 1934, as
     amended from time to time.

          6. "Person" shall have the meaning given in Section 3(a)(9) of the
     Exchange Act, as modified and used in Sections 13(d) and 14(d) thereof,
     except that such term shall not include (a) the Company or any of its
     subsidiaries, (b) a trustee or other fiduciary holding securities under an
     employee benefit plan of the Company or any of its affiliates, (c) an
     underwriter temporarily holding securities pursuant to an offering of such
     securities, or (d) a corporation owned, directly or indirectly, by the
     stockholders of the Company in substantially the same proportions as their
     ownership of stock of the Company.

          7. "Value" of a share of Common Stock shall mean (i) the average of
     the mean between the highest and lowest sales price per share of the Common
     Stock reported on the consolidated transaction reporting system for the
     principal national securities exchange on which shares of Common Stock are
     listed during the ten trading days immediately prior to the Change in
     Control Effective Date or (ii) the amount determined to be the fair value
     per share thereof by the Board in the resolution or resolutions adopted by
     it. In the event the Board determines the fair value, the amount so
     determined shall be not less than the ten-day average price computed in
     accordance with clause (i) the preceding sentence and not in excess of an
     amount (assuming that such amount is in excess of such ten-day average)
     equal to the highest consideration paid for the Common Stock in any offer
     to the holders thereof made as a part or in connection with the transaction
     or transactions resulting in the Change in Control. The Value of assets
     other than Common Stock credited to accounts under the Saving and Incentive
     Plan shall be the fair value determined for such assets under the terms of
     such plan.

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          If you find that this Agreement accurately describes the agreement
between Pennzoil-Quaker State Company and you concerning certain of your
employee benefits, please sign three copies of this Agreement and return two to
the Company, whereupon this letter shall constitute a binding agreement between
Pennzoil-Quaker State Company and you.

          This letter Agreement shall be effective as of October 4, 2001.

                                       Very truly yours,

                                       PENNZOIL-QUAKER STATE COMPANY

                                       By: /s/ JAMES L. PATE
                                           James L. Pate
                                           Chairman of the Board

Accepted and Agreed to this
11th day of December, 2001.

/s/ JAMES J. POSTL
James J. Postl

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                                                                   EXHIBIT 10.22

                               RETENTION AGREEMENT

          This Retention Agreement (this "Agreement") made this 20th day of
September, 2001, by and between Pennzoil-Quaker State Company, a Delaware
corporation (the "Company"), and James J. Postl ("Employee").

                                   WITNESSETH:

          WHEREAS, Employee is currently employed by the Company as President
and Chief Executive Officer of the Company; and

          WHEREAS, the Board of Directors of the Company has determined that it
would be in the best interests of the Company to provide for certain benefits
for the Employee to encourage Employee's continued employment with the Company;
and

          WHEREAS, the Company and Employee desire to set forth in this
Agreement the obligations of the Company upon certain termination events of
Employee's employment with the Company.

          NOW, THEREFORE, in consideration of the premises and mutual covenants
contained herein and for other good and valuable consideration, the receipt of
which is mutually acknowledged, the Company and Employee agree as follows:

     (1) Definitions. For purposes of this Agreement, the following terms shall
have the meanings provided below:

          "Board of Directors" shall mean the Board of Directors of the Company.

          "Cause" shall mean any of the following: (i) Employee's material
     breach of his agreements, duties or obligations under this Agreement and
     Employee's failure to cure such breach within ten days after the Company's
     written notice to Employee of such material breach; (ii) Employee's willful
     failure to carry out a material directive of the Board of Directors and/or
     the Chairman of the Board of Directors; (iii) Employee's embezzlement or
     conversion to his own use of any funds of the Company or any of its
     subsidiaries or affiliates or any client or customer of the Company or any
     of its subsidiaries or affiliates; (iv) Employee's conversion to his own
     use or destruction of any property of the Company or any of its
     subsidiaries or affiliates having a significant value; or (v) Employee's
     material violation of any of the policies and/or procedures of the Company
     as identified in any Company employee manual or handbook.

          "Effective Date" shall mean the date of this Agreement first written
     above.

          "Employment" shall mean employment with the Company.

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          "Good Reason" shall mean the Company's failure to (i) maintain
     Employee's total compensation package at a level competitive with
     comparative Company practices; (ii) maintain Employee's employment without
     materially changing Employee's duties and responsibilities as they exist as
     of the Effective Date; or (iii) comply with the material provisions of this
     Agreement and such failure is not cured by the Company within ten days
     after Employee's written notice to the Company of such failure to comply.

          "Termination Date" shall mean the date the Employee's Employment with
     the Company is terminated.

          "Waiver and Release" means the waiver and release of claims document,
     in the form attached hereto as Exhibit A or such other form as may be
     prescribed by the Company, in which the Employee, in exchange for the
     benefits described in this Agreement, among other things, releases the
     Company, its parents, subsidiaries and affiliates, and their officers,
     directors, agents, servants, employees, successors, assigns and insurers,
     and any and all other persons, firms, organizations and corporations from
     liability and damages in any way related to the Employee's employment with
     or termination of employment with the Company.

     (2) Benefits. If, at any time after the Effective Date, Employee's
Employment is terminated prior to his attainment of age 65 by the Company
without Cause, by the Employee for Good Reason or due to Employee's death or
disability (as determined by the Board of Directors, in its sole discretion),
Employee shall be entitled to receive the following benefits:

          (a) Long Term Incentive Programs. All outstanding awards as of the
     Termination Date granted to Employee under any of the Company's long term
     incentive programs shall be prorated by multiplying each such award by a
     fraction, the numerator of which is the number of complete calendar months
     elapsing between January 1 of the initial year of the award and the date
     that is two years from Employee's Termination Date and the denominator of
     which is 36. Such prorated awards shall be paid to Employee (or his estate
     in the case of his death) as soon as practicable after the end of each such
     award's three-year performance period based on the actual months of the
     award cycle.

          (b) Conditional and Restricted Stock Awards. All outstanding
     Conditional and Restricted Stock Awards as of the Termination Date granted
     to Employee shall be prorated by multiplying each such award by a fraction,
     the numerator of which is the number of complete calendar months elapsing
     between January 1 of the initial year of the award and Employee's
     Termination Date and the denominator of which is 60. Such prorated awards
     shall be paid to Employee (or his estate in the case of his death) as soon
     as practicable after Employee's Termination Date.

          (c) Stock Options. All outstanding stock options as of the Termination
     Date granted to Employee under any of the Company's stock option plans
     shall continue to vest during the two year period following Employee's
     Termination Date or, if earlier, until the options' expiration dates, as if
     Employee had remained employed by the

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     Company during such two-year period. Each such option, to the extent it is
     vested or becomes vested during such two-year period, shall be exercisable
     until the earlier of (1) the 90th day following the end of such two-year
     period or (2) the option's expiration date. Thereafter, to the extent not
     exercised, each such option shall expire and be of no further force and
     effect.

     (3) Noncompetition and Nonsolicitation Agreements. In return for any
benefit payments under Paragraph 3 of this Agreement, Employee hereby agrees
that, during the period commencing as of the Effective Date and ending as of the
third anniversary of Employee's Termination Date, Employee will not (i) accept
employment or render service to any person that is engaged in a business
directly competitive with the business then engaged in by the Company or any of
its subsidiaries or affiliates; (ii) enter into or take part in or lend his name
as principal, director, officer, executive, independent contractor, partner or
advisor, or accept employment for any purpose that would be competitive with the
business of the Company or any of its affiliates (all of the foregoing
activities are collectively referred to as the "Prohibited Activity"); or (iii)
directly or indirectly, on behalf of Employee or any other person, solicit for
employment or employ any person who, at any time during the six-month period
preceding the date of such solicitation or employment, was an employee of the
Company or any of its subsidiaries or affiliates. The foregoing notwithstanding,
if Employee violates a provision of this Paragraph 3, all benefit payments under
Paragraph 2 of this Agreement shall immediately cease.

     It shall not be considered a violation of this Agreement for Employee to be
a passive investor in any enterprise that might be viewed as a competitor of the
Company.

     Employee acknowledges, agrees and stipulates that: (i) the terms and
provisions of this Agreement are reasonable and constitute an otherwise
enforceable agreement to which the terms and provisions of this paragraph are
ancillary or a part of as contemplated by TEX. BUS. & COM. CODE ANN. Sections
15.50-15.52, or any successor provisions; (ii) the consideration provided by the
Company under this Agreement is not illusory; and (iii) the consideration given
by the Company under this Agreement, gives rise to the Company's interest in
restraining and prohibiting Employee from engaging in the Prohibited Activity as
provided under this Paragraph 3, and Employee's covenant not to engage in the
Prohibited Activity pursuant to this Paragraph 3 is designed to enforce
Employee's consideration (or return promises).

     (4) Confidentiality Agreement. The Employee agrees to hold for the benefit
of the Company all secret or confidential information, knowledge or data
relating to the Company or any of its affiliates, and their respective
businesses, which shall have been obtained by the Employee during his employment
with the Company or any of its affiliates and which shall not be or become
public knowledge (other than acts by the Employee or his representatives in
violation of this Agreement or the other terms and conditions of the Employee's
employment with the Company). The Employee acknowledges that he has received, is
currently receiving and will receive Company confidential information and that
it is critical to the Company that such information be provided to the Employee
and held in confidence by the Employee in order to foster success of the
Company's business. The Employee agrees that he will not, without the prior
written consent of the Company or as may be otherwise required by law or legal
process, communicate or divulge any such secret or confidential information,
knowledge or data relating

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to the Company or any of its affiliates and their respective businesses to
anyone other than the Company and those designated by it.

     (5) Waiver and Release. Notwithstanding any provision herein to the
contrary, the Employee hereby acknowledges and accepts that the payment or
receipt of any benefits under this Agreement shall be contingent upon, and
subject to, the Employee's timely and valid execution and return of the Waiver
and Release, and the expiration of the Waiver and Release's seven-day revocation
period without the Employee's revocation of such Waiver and Release during such
revocation period.

     (6) Withholding. The Company may withhold from any benefits payable under
this Agreement all federal, state, city or other taxes and any other withholding
as may be required pursuant to any law or governmental regulation or ruling.

     (7) No Employment Agreement. Nothing in this Agreement shall give Employee
any rights to (or impose any obligations for) continued Employment by the
Company or successor thereto, nor shall it give Employee any rights (or impose
any obligations) with respect to continued performance of duties by Employee.

     (8) No Assignment; Successors. Employee's right to receive payments or
benefits hereunder shall not be assignable or transferable, whether by pledge,
creation of a security interest or otherwise, whether voluntary, involuntary, by
operation of law or otherwise, other than a transfer by will or by the laws of
descent or distribution, and in the event of any attempted assignment or
transfer contrary to this Paragraph 6, the Company shall have no liability to
pay any amount so attempted to be assigned or transferred. This Agreement shall
inure to the benefit of and be enforceable by Employee's personal or legal
representatives, executors, administrators, successors, heirs, distributees,
devisees and legatees.

          This Agreement shall be binding upon and inure to the benefit of the
Company, its successors and assigns including, without limitation, any company
into or with which the Company may merge or consolidate by operation of law or
otherwise.

     (9) Entire Agreement. This Agreement represents the entire agreement
between the Company and Employee with respect to the subject matter hereof, and
supersedes and is in full substitution for any and all prior agreements or
understandings, whether oral or written, relating to the subject matter hereof.

     (10) Modification of Agreement. Any modification of this Agreement shall be
binding only if evidenced in writing and signed by an authorized representative
of the Company.

     (11) Applicable Law. This agreement is entered into under, and shall be
governed for all purposes by, the laws of the State of Texas.

     (12) Severability. If a court of competent jurisdiction determines that any
provision of this Agreement is invalid or unenforceable, then the invalidity or
unenforceability of that provision shall not affect the validity or
enforceability of any other provision of this Agreement and all other provisions
shall remain in full force and effect.

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          IN WITNESS WHEREOF, the Company has caused this Agreement to be
executed by its duly authorized officer and Employee has hereunto set his hand
as of the date first above written.

                                       PENNZOIL-QUAKER STATE COMPANY

                                       By: /s/ JAMES L. PATE
                                           James L. Pate
                                           Chairman of the Board

Accepted and agreed to by:

/s/ JAMES J. POSTL
James J. Postl

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                                    EXHIBIT A

                               WAIVER AND RELEASE

          In connection with the termination of employment of the undersigned,
James J. Postl (the "Employee"), with Pennzoil-Quaker State Company (the
"Company"), the Employee is eligible for severance benefits under the Agreement
dated September , 2001 (the "Agreement").

          In consideration of the Company's agreement to provide the Employee
the benefits, payments and other items described in the Agreement, some of which
are in addition to anything to which he is already entitled and the receipt and
sufficiency of which are hereby acknowledged, the Employee hereby knowingly and
voluntarily releases and forever discharges the Company and its parents,
subsidiaries and affiliates, and their officers, directors, agents, servants,
employees, successors, assigns and insurers, and any and all persons, firms,
organizations, and corporations from any and all damages, losses, causes of
action, expenses, demands, liabilities, and claims on behalf of the Employee,
the Employee's heirs, executors, administrators, and assigns with respect to all
matters relating to Company and its parents, subsidiaries and affiliates, and
the Employee hereby accepts the cash payments, benefits, and other items
described in the Agreement in full settlement of all such damages, losses,
causes of action, expenses, demands, liabilities and claims the Employee now has
or may have with respect to such matters (except the Employee shall retain all
rights to (i) coverage, if any, under directors' and officers' fiduciary errors
and omissions and other liability insurance policies of the Company that by
their terms would apply to the Employee's acts and omissions while serving the
Company, subsidiaries and affiliates, and their respective officers, directors,
agents, servants, employees and their successors and assigns, (ii) any
indemnification arrangements with the Company (including pursuant to the
Company's Bylaws) that apply to the Employee's service with the Company, its
subsidiaries and affiliates and (iii) claims arising from a breach of the
Agreement), as evidenced by the Employee's execution of this release and waiver
of claims agreement (this "Release").

          This Release includes, but is not limited to, claims arising under the
Title VII of the Civil Rights Act of 1964, as amended; the Age Discrimination in
Employment Act, as amended; the Older Workers' Benefit Protection Act of 1990,
as amended; the Civil Rights Act of 1866, as amended; the Civil Rights Act of
1991; the Rehabilitation Act of 1973, as amended; the Americans with
Disabilities Act of 1990; the Worker Adjustment and Retraining Notification Act
of 1988; the Pregnancy Discrimination Act of 1978; the Equal Pay Act; the
Employee Retirement Income Security Act of 1974, as amended; the Family and
Medical Leave Act of 1993; the Fair Labor Standards Act; the Occupational Health
and Safety Act; the Texas Commission on Human Rights Act; the Texas Labor Code;
and any claims for breach of contract, tort, including, but not limited to,
fraudulent inducement or misrepresentation, defamation, slander, wrongful
termination or other retaliation claims in connection with workers' compensation
claims or whistleblower status or any claim under any other state or federal
statute or regulation, in equity or at common law.

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          Further, by accepting the severance payments described in the
Agreement, the Employee agrees not to sue Company or the related persons and
entities described above. The Employee affirms and agrees that his employment
relationship has ended and waives all rights in connection with such
relationship except to vested benefits and the payments and benefits described
in this Release. The Employee acknowledges that Company has not promised him
continued employment nor represented that the Employee will be rehired in the
future. In addition, in signing this Release, the Employee expressly represents
that no promise or agreement which is not expressed in this Release has been
made to him and that the Employee is relying on his own judgment in signing this
Release and is not relying on any statement or representation of Company, its
affiliates or any of their agents. The Employee acknowledges that the Employee
is signing with full knowledge and consent which was not procured through fraud,
duress or mistake and that this Release has not had the effect of misleading or
failing to inform the Employee.

          The Employee shall have twenty-one (21) days to decide whether to sign
this Release and be bound by its terms. The Employee shall have the right to
revoke or cancel this Release within seven (7) days after the Employee has
signed it. This cancellation or revocation can be accomplished by delivery of a
written notification to Company. In the event that this Release is canceled or
revoked, Company shall have no obligation to furnish the payments described in
this Release. THE EMPLOYEE ACKNOWLEDGES THAT THE EMPLOYEE HAS BEEN ADVISED IN
WRITING TO CONSULT WITH AN ATTORNEY PRIOR TO SIGNING THIS RELEASE AND HAS HAD AN
ADEQUATE OPPORTUNITY TO SEEK ADVICE OF HIS OWN CHOOSING. The Employee
acknowledges that he has read this Release, has had an opportunity to ask
questions and have it explained to him and that the Employee understands that
this Release will have the effect of knowingly and voluntarily waiving any
action the Employee might pursue, including breach of contract, personal injury,
retaliation, discrimination on the basis of race, age, gender, national origin,
or disability and any other claims arising prior to the date of this Release.
Further, Company agrees to Release the Employee from all claims arising out of
his employment with Company.

          The Employee acknowledges that payment by the Company of severance
benefits under the Agreement is not an admission by Company or its officers,
directors, agents, servants, and employees, their successors, assigns, and
insurers, and their parents, subsidiaries and affiliates, that they engaged in
any wrongful or unlawful act or violated any federal or state law or regulation.

          Should any of the provisions set forth in this Release be determined
to be invalid by a court, agency or other tribunal of competent jurisdiction, it
is agreed such determination shall not affect the enforceability of other
provisions of this Release.

          The Employee acknowledges that this Release sets forth the entire
understanding and agreement between the Employee and Company concerning the
subject matter of this Release and supersedes any prior or contemporaneous oral
and/or written agreements or representations, if any, between the Employee and
Company.

          The purpose of the arrangements described in this Release is to arrive
at a mutually agreeable and amicable basis upon which to terminate the
Employee's employment

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with Company. The Employee and Company agree to refrain from any criticisms or
disparaging comments about each other or in any way relating to the Employee's
employment with or termination of employment with the Company.

          Furthermore, the Employee agrees that he has returned or will return
immediately, and will maintain in strictest confidence and not use in any way,
any proprietary, confidential, or other nonpublic information or documents
relating to the business and affairs of Company and its affiliates. For the
purposes of this Release, "proprietary, confidential or other nonpublic
information" shall mean any information concerning Company or its affiliates
which the Employee developed or learned through his employment and which is not
generally known or available outside of Company. Such information, without
limitation, includes information, written or otherwise, regarding Company's
earnings, expenses, material sources, equipment sources, customers and
prospective customers, business plans, strategies, practices and procedures,
prospective and executed contracts, maps, computer files and other business
arrangements. The Employee acknowledges and agrees that all records, papers,
reports, computer programs, strategies, documents (including, without
limitation, memoranda, notes, files and correspondence), opinions, evaluations,
inventions, ideas, technical data, products, services, processes, procedures,
and interpretations that are, or have been, produced by the Employee or any
other employee, officer, director, agent, contractor, or representative of
Company whether provided in written or printed form, or orally, all comprise
confidential and proprietary business information. The Employee understands and
agrees that in the event of any breach of this provision, or threatened breach,
by the Employee, Company may, in its discretion, discontinue any or all payments
provided for in the Agreement and recover any and all payments already made and
Company shall be entitled to apply to a court of competent jurisdiction for such
relief by way of specific performance, restraining order, injunction or
otherwise as may be appropriate to ensure compliance with this provision.

          The Employee further agrees that the existence and all terms of this
Release shall be kept strictly confidential and that any disclosure to anyone
for any purpose whatsoever (save and except disclosure to the Employee's spouse,
financial advisors or institutions for financial statement purposes, attorney,
or as required by law) by the Employee or his agents, representatives, heirs,
children, spouse, employees or spokespersons shall be a breach of this Release
and Company may elect either to cease performance hereunder or enforce this
Release; provided, however, in the event Company believes a breach of
confidentiality has occurred, the Employee will be given notice and thirty (30)
days to respond.

          Should the Employee be contacted or served with legal process seeking
to compel the Employee to disclose any such information, the Employee agrees to
notify Company's General Counsel immediately, in order that Company may seek to
resist such process if it so chooses. If the Employee is called upon to serve as
a witness or consultant in or with respect to any potential litigation,
litigation, or regulatory proceeding, the Employee agrees to cooperate with
Company to the full extent permitted by law, and Company agrees that any such
call shall be with reasonable notice, shall not unnecessarily interfere with the
Employee's later employment, and shall provide for payment for the Employee's
time and costs expended in such matters.

                                       8
<PAGE>

          This Release shall be governed by and construed in accordance with the
laws of the State of Texas, and where applicable, the laws of the United States.

-----------------------------------    ------------------------------------
James J. Postl                         Company Representative

-----------------------------------    ------------------------------------
Date Signed                            Date Signed

                                       9

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