<PAGE>   1
                                                                   EXHIBIT 10.35


                         EXECUTIVE EMPLOYMENT AGREEMENT

         This Employment Agreement ("Agreement"), including the attached Exhibit
"A", is entered into between EOTT ENERGY CORP., a Delaware corporation and
subsidiary of Enron Corp., having offices at 2000 W. Sam Houston, Parkway, S.,
Suite 400, Houston, Texas 77042 ("Employer" and "Company"), and MOLLY M. SAMPLE,
an individual currently residing at 2811 Jarrod, Houston, Texas 77005
("Employee"), to be effective as of December 1, 2000 (the "Effective Date").

                                   WITNESSETH:

         WHEREAS, Employer is desirous of employing Employee pursuant to the
terms and conditions and for the consideration set forth in this Agreement, and
Employee is desirous of entering the employ of Employer pursuant to such terms
and conditions and for such consideration.

         NOW, THEREFORE, for and in consideration of the mutual promises,
covenants, and obligations contained herein, Employer and Employee agree as
follows:

ARTICLE 1: EMPLOYMENT AND DUTIES:

         1.1. Employer agrees to employ Employee, and Employee agrees to be
employed by Employer, beginning as of the Effective Date of this Agreement and
continuing until the date set forth on Exhibit "A" (the "Term"), subject to the
terms and conditions of this Agreement.

         1.2. Employee initially shall be employed in the position set forth on
Exhibit "A". Employee agrees to serve in the assigned position and to perform
diligently and to the best of Employee's abilities the duties and services
appertaining to such position as determined by Employer, as well as such
additional or different duties and services appropriate to such position which
Employee from time to time may be reasonably directed to perform by Employer.
Employee shall at all times comply with and be subject to such policies and
procedures as Employer may establish from time to time.

         1.3. Employee shall, during the period of Employee's employment by
Employer, devote Employee's full business time, energy, and best efforts to the
business and affairs of Employer. Employee may not engage, directly or
indirectly, in any other business, investment, or activity that interferes with
Employee's performance of Employee's duties hereunder, is contrary to the
interests of Employer, or requires any significant portion of Employee's
business time.

         1.4. Employee acknowledges and agrees that Employee owes a fiduciary
duty of loyalty, fidelity and allegiance to act at all times in the best
interests of the Employer and to do no act which would injure Employer's
business, its interests, or its reputation. Employee agrees to be in compliance
with the policies and procedures as described and contained in the EOTT Energy
Corp. and Enron Corp. Code of Ethics booklets.


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ARTICLE 2: COMPENSATION AND BENEFITS:

         2.1. Employee shall be paid as set forth on Exhibit "A." Employee's
monthly base salary shall be paid in semimonthly installments in accordance with
Employer's standard payroll practice, and (as with all other payments made to
Employee by Employer) is subject to withholding of all federal, state, city, or
other taxes as may be required by law.

         2.2. While employed by Employer (both during the Term and thereafter),
Employee shall be allowed to participate, on the same basis generally as other
employees of Employer, in all general employee benefit plans and programs,
including improvements or modifications of the same, which on the effective date
or thereafter are made available by Employer to all or substantially all of
Employer's employees. Such benefits, plans, and programs may include, without
limitation, medical, and dental care, life insurance, disability protection, and
qualified plans. Nothing in this Agreement is to be construed or interpreted to
provide greater rights, participation, coverage, or benefits under such benefit
plans or programs than provided to similarly situated employees pursuant to the
terms and conditions of such benefit plans and programs.

         2.3. Employee shall be eligible to participate in the Employer's
long-term incentive plans and Employer's annual incentive plan currently
maintained or hereafter maintained by Employer for its officers as a group.

         2.4. Employer shall not by reason of this Article 2 be obligated to
institute, maintain, or refrain from changing, amending, or discontinuing, any
such incentive compensation or employee benefit program or plan, so long as such
actions are similarly applicable to covered employees generally. Moreover,
unless specifically provided for in a written plan document adopted by the Board
of Directors of Employer, none of the benefits or arrangements described in this
Article 2 shall be secured or funded in any way, and each shall instead
constitute an unfunded and unsecured promise to pay money in the future
exclusively from the general assets of Employer.

         2.5. Employer may withhold from any compensation, benefits, or amounts
payable under this Agreement all federal, state, city, or other taxes as may be
required pursuant to any law or governmental regulation or ruling.

ARTICLE 3: TERMINATION PRIOR TO EXPIRATION OF TERM AND EFFECTS OF SUCH
           TERMINATION:

         3.1. Notwithstanding any other provisions of this Agreement, Employer
shall have the right to terminate Employee's employment under this Agreement at
any time prior to the expiration of the Term for any of the following reasons:

          (i)   For "cause" upon the good faith determination by the Employer's
                Chairman of the Board and President that "cause" exists for the
                termination of the employment relationship. As used in this
                Section 3.1(i), the term "cause" shall mean [a] Employee's gross
                negligence or willful misconduct in the performance of the
                duties and services required of Employee


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                pursuant to this Agreement; or [b] Employee's final conviction
                of a felony or of a misdemeanor involving moral turpitude; [c]
                Employee's involvement in a conflict of interest as referenced
                in Section 1.4 for which Employer makes a determination to
                terminate the employment of Employee; or [d] Employee's material
                breach of any material provision of this Agreement which remains
                uncorrected for thirty (30) days following written notice to
                Employee by Employer of such breach. It is expressly
                acknowledged and agreed that the decision as to whether "cause"
                exists for termination of the employment relationship by
                Employer is delegated to the Chairman of the Board and President
                of Employer for determination. If Employee disagrees with the
                decision reached by the Chairman of the Board and President of
                Employer, the dispute will be limited to whether the Chairman of
                the Board and President of Employer reached their decision in
                good faith;

          (ii)  for any other reason whatsoever, with or without cause, in the
                sole discretion of the Employer's Chairman of the Board and
                President;

          (iii) upon Employee's death; or

          (iv)  upon Employee's becoming incapacitated by accident, sickness, or
                other circumstance which renders him or her mentally or
                physically incapable of performing the duties and services
                required of Employee.

The termination of Employee's employment by Employer prior to the expiration of
the Term shall constitute a "Termination for Cause" if made pursuant to Section
3.1(i); the effect of such termination is specified in Section 3.4. The
termination of Employee's employment by Employer prior to the expiration of the
Term shall constitute an "Involuntary Termination" if made pursuant to Section
3.1(ii); the effect of such termination is specified in Section 3.5. The effect
of the employment relationship being terminated pursuant to Section 3.1(iii) as
a result of Employee's death is specified in Section 3.6. The effect of the
employment relationship being terminated pursuant to Section 3.1(iv) as a result
of the Employee becoming incapacitated is specified in Section 3.7.

         3.2. Notwithstanding any other provisions of this Agreement except
Section 7.5, Employee shall have the right to terminate the employment
relationship under this Agreement at any time prior to the expiration of the
Term of employment for any of the following reasons:

          (i)   a material breach by Employer of any material provision of this
                Agreement which remains uncorrected for 30 days following
                written notice of such breach by Employee to Employer; or


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          (ii)  for any other reason whatsoever, in the sole discretion of
                Employee.

          The termination of Employee's employment by Employee prior to the
  expiration of the Term shall constitute an "Involuntary Termination" if made
  pursuant to Section 3.2(i); the effect of such termination is specified in
  Section 3.5. The termination of Employee's employment by Employee prior to the
  expiration of the Term shall constitute a "Voluntary Termination" if made
  pursuant to Section 3.2(ii); the effect of such termination is specified in
  Section 3.3.

         3.3. Upon a "Voluntary Termination" of the employment relationship by
Employee prior to expiration of the Term, all future compensation to which
Employee is entitled and all future benefits for which Employee is eligible
shall cease and terminate as of the date of termination. Employee shall be
entitled to pro rata salary through the date of such termination, but Employee
shall not be entitled to any bonuses or incentive compensation not yet paid at
the date of such termination.

         3.4. If Employee's employment hereunder shall be terminated by Employer
for Cause prior to expiration of the Term, all future compensation to which
Employee is entitled and all future benefits for which Employee is eligible
shall cease and terminate as of the date of termination. Employee shall be
entitled to pro rata salary through the date of such termination, but Employee
shall not be entitled to any bonuses or incentive compensation not yet paid at
the date of such termination.

         3.5. Upon an Involuntary Termination of the employment relationship by
either Employer or Employee prior to expiration of the Term, Employee shall be
entitled, after execution of a Waiver and Release Agreement, in consideration of
Employee's continuing obligations hereunder after such termination (including,
without limitation, Employee's non-competition obligations), Employee shall
receive an amount equal to the sum of two years annual base salary payable as
follows: one year's annual base salary shall be paid within thirty (30) days of
the termination date; the remaining one year's annual base salary shall be paid
at the end of the twelve (12) month period following the termination date.

         Employee shall not be under any duty or obligation to seek or accept
other employment following Involuntary Termination and the amounts due Employee
hereunder shall not be reduced or suspended if Employee accepts subsequent
employment. Employee's rights under this Section 3.5 are Employee's sole and
exclusive rights against Employer, or its affiliates, and Employer's sole and
exclusive liability to Employee under this Agreement, in contract, tort, or
otherwise, for any Involuntary Termination of the employment relationship.
Employee covenants not to sue or lodge any claim, demand or cause of action
against Employer for any sums for Involuntary Termination other than those sums
specified in this Section 3.5. If Employee breaches this covenant, Employer
shall be entitled to recover from Employee all sums expended by Employer
(including costs and attorneys fees) in connection with such suit, claim, demand
or cause of action.

         3.6. Upon termination of the employment relationship as a result of
Employee's death, Employee's heirs, administrators, or legatees shall be
entitled to Employee's pro rata salary through the date of such termination,
provided however, Employee's heirs, administrators, or legatees shall be
entitled to any bonuses or incentive compensation earned and accrued but not yet
paid to Employee at the date of such termination.


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         3.7. Upon termination of the employment relationship as a result of
Employee's incapacity, Employee shall be entitled to his or her pro rata salary
through the date of such termination, provided however, Employee shall be
entitled to any bonuses or incentive compensation earned and accrued but not yet
paid to Employee at the date of such termination.

         3.8. In all cases, the payments payable to Employee under Section 3.5
of this Agreement upon termination of the employment relationship shall be
offset against any amounts to which Employee may otherwise be entitled under any
and all severance plans, and policies of Employer, or its affiliates.

         3.9. Termination of the employment relationship does not terminate
those obligations imposed by this Agreement which are continuing obligations,
including, without limitation, Employee's obligations under Articles 5 and 6.

ARTICLE 4: CONTINUATION OF EMPLOYMENT BEYOND TERM; TERMINATION AND EFFECTS OF
           TERMINATION:

         4.1. Should Employee remain employed by Employer beyond the expiration
of the Term of this Agreement, and this Agreement has not been extended by
Employer, the Employer-Employee relationship shall be Employment at Will,
terminable at any time by either Employer or Employee for any reason whatsoever,
with or without cause.

ARTICLE 5: OWNERSHIP AND PROTECTION OF INFORMATION; COPYRIGHTS:

         5.1. All information, ideas, concepts, improvements, discoveries, and
inventions, whether patentable or not, which are conceived, made, developed or
acquired by Employee, individually or in conjunction with others, during
Employee's employment by Employer (whether during business hours or otherwise
and whether on Employer's premises or otherwise) which relate to Employer's
business, products or services (including, without limitation, all such
information relating to corporate opportunities, research, financial and sales
data, pricing and trading terms, evaluations, opinions, interpretations,
acquisition prospects, the identity of customers or their requirements, the
identity of key contacts within the customer's organizations or within the
organization of acquisition prospects, or marketing and merchandising
techniques, prospective names, and marks) shall be disclosed to Employer and are
and shall be the sole and exclusive property of Employer. Moreover, all
drawings, memoranda, notes, records, files, correspondence, drawings, manuals,
models, specifications, computer programs, maps and all other writings or
materials of any type embodying any of such information, ideas, concepts,
improvements, discoveries, and inventions are and shall be the sole and
exclusive property of Employer.

         5.2. Employee acknowledges that the business of Employer, Enron Corp.,
and their affiliates is highly competitive and that their strategies, methods,
books, records, and documents, their technical information concerning their
products, equipment, services, and processes, procurement procedures and pricing
techniques, the names of and other information (such as credit and financial
data) concerning their customers and business affiliates, all comprise
confidential business information and trade secrets which are valuable, special,
and unique assets which Employer, Enron Corp., or their affiliates use in their
business to obtain a


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competitive advantage over their competitors. Employee further acknowledges that
protection of such confidential business information and trade secrets against
unauthorized disclosure and use is of critical importance to Employer, Enron
Corp., and their affiliates in maintaining their competitive position. Employee
hereby agrees that Employee will not, at any time during or after his or her
employment by Employer, make any unauthorized disclosure of any confidential
business information or trade secrets of Employer, Enron Corp., or their
affiliates, or make any use thereof, except in the carrying out of his or her
employment responsibilities hereunder. Enron Corp. and its affiliates shall be
third party beneficiaries of Employee's obligations under this Section. As a
result of Employee's employment by Employer, Employee may also from time to time
have access to, or knowledge of, confidential business information or trade
secrets of third parties, such as customers, suppliers, partners, joint
venturers, and the like, of Employer, Enron Corp., and their affiliates.
Employee also agrees to preserve and protect the confidentiality of such third
party confidential information and trade secrets to the same extent, and on the
same basis, as Employer's confidential business information and trade secrets.
Employee acknowledges that money damages would not be sufficient remedy for any
breach of this Article 5 by Employee, and Employer shall be entitled to enforce
the provisions of this Article 5 by terminating any payments then owing to
Employee under this Agreement and/or to specific performance and injunctive
relief as remedies for such breach or any threatened breach. Such remedies shall
not be deemed the exclusive remedies for a breach of this Article 5, but shall
be in addition to all remedies available at law or in equity to Employer,
including the recovery of damages from Employee and his or her agents involved
in such breach.

ARTICLE 6: POST-EMPLOYMENT NON-COMPETITION OBLIGATIONS:

         6.1. As part of the consideration for the compensation and benefits to
be paid to Employee hereunder, and as an additional incentive for Employer to
enter into this Agreement, Employer and Employee agree to the non-competition
provisions of this Article 6. Employee agrees that during the period of
Employee's non-competition obligations hereunder, Employee will not, directly or
indirectly for Employee or for others, in any geographic area or market where
Employer or any of its affiliated companies are conducting any business as of
the date of termination of the employment relationship or have during the
previous twelve months conducted any business:

          (i)   engage in any business competitive with the business conducted
                by Employer;

          (ii)  render advice or services to, or otherwise assist, any other
                person, association, or entity who is engaged, directly or
                indirectly, in any business competitive with the business
                conducted by Employer; or

          (iii) induce any employee of Employer or any of its affiliates to
                terminate his or her employment with Employer or its affiliates,
                or hire or assist in the hiring of any such employee by person,
                association, or entity not affiliated with Employer.


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These non-competition obligations shall continue for a period of one year after
termination of this employment relationship.

         6.2. Employee understands that the foregoing restrictions may limit his
or her ability to engage in certain businesses during the twelve (12) month
period provided for above, but acknowledges that Employee will receive
sufficiently high remuneration and other benefits (e.g., the right to receive
compensation under Section 3.5 upon Involuntary Termination) under this
Agreement to justify such restriction. Employee acknowledges that money damages
would not be sufficient remedy for any breach of this Article 6 by Employee, and
Employer shall be entitled to enforce the provisions of this Article 6 by
terminating any payments then owing to Employee under this Agreement and/or to
specific performance and injunctive relief as remedies for such breach or any
threatened breach. Such remedies shall not be deemed the exclusive remedies for
a breach of this Article 6, but shall be in addition to all remedies available
at law or in equity to Employer, including, without limitation, the recovery of
damages from Employee and his or her agents involved in such breach.

         6.3. It is expressly understood and agreed that Employer and Employee
consider the restrictions contained in this Article 6 to be reasonable and
necessary to protect the proprietary information of Employer. Nevertheless, if
any of the aforesaid restrictions are found by a court having jurisdiction to be
unreasonable, or overly broad as to geographic area or time, or otherwise
unenforceable, the parties intend for the restrictions therein set forth to be
modified by such courts so as to be reasonable and enforceable and, as so
modified by the court, to be fully enforced.

ARTICLE 7: MISCELLANEOUS:

         7.1. For purposes of this Agreement the following terms shall have the
meanings ascribed to them below:

          (a)  "Affiliates" or "Affiliated" means an entity who directly, or
               indirectly through one or more intermediaries, controls, is
               controlled by, or is under common control with Enron Corp. or
               Employer.

          (b)  "Involuntary Termination Date" shall mean Employee's last date of
               employment by reason of an Involuntary Termination.

         7.2. For purposes of this Agreement, notices and all other
communications provided for herein shall be in writing and shall be deemed to
have been duly given when personally delivered or when mailed by United States
registered or certified mail, return receipt requested, postage prepaid,
addressed as follows:

If to Employer, to:

         EOTT Energy Corp.
         Box 4666
         Houston, Texas 77210
         Attention:  Vice President Human Resources


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If to Employee, to the address shown on the first page hereof.

Either Employer or Employee may furnish a change of address to the other in
writing in accordance herewith, except that notices of changes of address shall
be effective only upon receipt.

         7.3. This Agreement shall be governed in all respects by the laws of
the State of Texas, excluding any conflict-of-law rule or principle that might
refer the construction of the Agreement to the laws of another State or country.

         7.4. No failure by either party hereto at any time to give notice of
any breach by the other party of, or to require compliance with, any condition
or provision of this Agreement shall be deemed a waiver of similar or dissimilar
provisions or conditions at the same or at any prior or subsequent time.

         7.5. If a dispute arises out of or related to this Agreement, other
than a dispute regarding Employee's obligations under Sections 5.2, Article 5,
or Section 6.1, and if the dispute cannot be settled through direct discussions,
then Employer and Employee agree to first endeavor to settle the dispute in an
amicable manner by mediation, before having recourse to any other proceeding or
forum. Thereafter, if either party to this Agreement brings legal action to
enforce the terms of this Agreement, the party who prevails in such legal
action, whether plaintiff or defendant, in addition to the remedy or relief
obtained in such legal action shall be entitled to recover its, his, or her
expenses incurred in connection with such legal action, including, without
limitation, costs of Court and attorneys fees.

         7.6. It is a desire and intent of the parties that the terms,
provisions, covenants, and remedies contained in this Agreement shall be
enforceable to the fullest extent permitted by law. If any such term, provision,
covenant, or remedy of this Agreement or the application thereof to any person,
association, or entity or circumstances shall, to any extent, be construed to be
invalid or unenforceable in whole or in part, then such term, provision,
covenant, or remedy shall be construed in a manner so as to permit its
enforceability under the applicable law to the fullest extent permitted by law.
In any case, the remaining provisions of this Agreement or the application
thereof to any person, association, or entity or circumstances other than those
to which they have been held invalid or unenforceable, shall remain in full
force and effect.

         7.7. This Agreement shall be binding upon and inure to the benefit of
Employer and any other person, association, or entity which may hereafter
acquire or succeed to all or substantially all of the business or assets of
Employer by any means whether direct or indirect, by purchase, merger,
consolidation, or otherwise. Employer may assign this Agreement to any affiliate
or any other entity of Enron Corp. Employee's rights and obligations under
Agreement hereof are personal and such rights, benefits, and obligations of
Employee shall not be voluntarily or involuntarily assigned, alienated, or
transferred, whether by operation of law or otherwise, without the prior written
consent of Employer.

         7.8. There exist other agreements between Employer and Employee
relating to the employment relationship between them, e.g., the agreement with
respect to company policies


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contained in Employer's Code of Ethics booklet and agreements with respect to
benefit plans. This Agreement replaces and merges previous agreements and
discussions pertaining to the following subject matters covered herein: the
nature of Employee's employment relationship with Employer and the term and
termination of such relationship. This Agreement constitutes the entire
agreement of the parties with regard to such subject matters, and contains all
of the covenants, promises, representations, warranties, and agreements between
the parties with respect such subject matters. Each party to this Agreement
acknowledges that no representation, inducement, promise, or agreement, oral or
written, has been made by either party with respect to such subject matters,
which is not embodied herein, and that no agreement, statement, or promise
relating to the employment of Employee by Employer that is not contained in this
Agreement shall be valid or binding. Any modification of this Agreement will be
effective only if it is in writing and signed by each party whose rights
hereunder are affected thereby, provided that any such modification must be
authorized or approved by the Board of Directors of Employer.

IN WITNESS WHEREOF, Employer and Employee have duly executed this Agreement in
multiple originals to be effective on the date first stated above.


                                           EOTT ENERGY CORP.

                                           By:   /s/  STANLEY C. HORTON
                                              ---------------------------------
                                           Chairman and Chief Executive Officer
                                           This 19th day of January, 2001




                                           MOLLY M. SAMPLE

                                                /s/  MOLLY M.SAMPLE
                                           ------------------------------------
                                           Name:  Molly M. Sample
                                           This 19th day of January, 2001


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<PAGE>   10
                                 EXHIBIT "A" TO
                         EXECUTIVE EMPLOYMENT AGREEMENT
                                     BETWEEN
                      EOTT ENERGY CORP. AND MOLLY M. SAMPLE


Employee Name:              Molly M. Sample

Term:                       December 1, 2000 through November 30, 2002

Position:                   General Counsel

Reporting Relationship:     Reports to the Office of the Chairman, EOTT Energy
                            Corp.

Location:                   Houston, Texas

Monthly Base Salary:        Employee's monthly base salary shall not be less
                            than Ten Thousand Eight Hundred Thirty-Three and
                            Thirty-Three/100 Dollars ($10,833.33).

Bonus:                      Employee may be eligible to participate in the EOTT
                            Energy Corp. Annual Incentive Plan ("Plan") or any
                            appropriate replacement bonus plan of Employer. All
                            bonuses are discretionary and shall be paid in
                            accordance with the terms and provisions of the
                            Plan.

Long Term Incentives:       As recommended and approved in any EOTT Energy Long
                            Term Incentive Plan(s) by the Board of Directors of
                            EOTT Energy Corp.

EOTT ENERGY CORP.                                MOLLY M. SAMPLE

By:     /s/  STANLEY C. HORTON                        /s/  MOLLY M. SAMPLE
   ----------------------------------            -------------------------------
   Name:  Stanley C. Horton                      This 19th day of January, 2001
   Title:  Chairman and CEO
   This 19th day of January, 2001


5594sab
March 22, 2001