Document:

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                                                                   EXHIBIT 10.28

                              EMPLOYMENT AGREEMENT

     THIS AGREEMENT is effective as of January 1, 1991, and has been entered
into between Seitel, Inc., a Delaware corporation with its principal offices at
16010 Barker's Point Lane, Houston, Texas 77079 (hereinafter together with its
subsidiaries, successors in interest or assigns, called "Employer" or "Company",
except where otherwise specifically referenced) and David S. Lawi
(hereinafter called the "Employee").

     WHEREAS, Employer desires to employ the Employee on the terms and
conditions set forth herein; and

     WHEREAS, the Employee desires to be employed by the Employer on the terms
and conditions set forth herein:

     NOW THEREFORE, in consideration of the mutual covenants, agreement and
warranties contained in this Agreement, and intending to be legally bound, the
parties agree as follows:

     1. Employment: The Employer hereby employs the Employee, and the Employee
hereby accepts employment, upon the terms and conditions hereinafter set forth.

     2. Term: The term of this Agreement shall begin on January 1, 1991 and
shall terminate on December 31, 1995 (being five (5) years after the
commencement date); provided, however, that commencing on the date which is one
year after the date hereof, and on each anniversary of such date (such date and
the date of each anniversary thereof being a "Renewal Date"), the term shall be
automatically extended so as to terminate five (5) years from such Renewal Date,
unless at least Sixty (60) days prior to such Renewal Date either party hereto
gives notice to the other that the term should not be extended for an additional
year (the "Termination Date"). The term of this Agreement, as extended in the
manner described in the preceding sentence is hereafter sometimes referred to as
the "Employment Period"; and each year of the Employment Period; beginning
January 1st and ending December 31st of any year is hereafter sometimes referred
to as the "Annual Period". If the Employment Period reaches the Termination
Date, Employer will pay Employee for two (2) additional years the compensation
then applicable, which shall include for purposes of this payment the Base
Salary, together with the average of all bonus payments paid to Employee for the
prior three (3) years (the Severance Payment). The Severance Payment will be
paid provided Employee is available to act as a consultant to Employer for up to
Twenty (20%) per cent of Employee's work related time (as compared to his final
year of employment) (hereinafter "Consulting Services"). If Employee terminates
this Agreement during any renewal period, Employer will pay Employee 100% of his
then current Base Salary (including bonus and/or commissions) for two additional
years, provided Employee performs the Consulting Services (the Termination
Payment). Employer shall have no obligation to pay Employee any Severance
Payment if Employee:

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     (i) refuses to perform the consulting services requested by Employer
     although there is no requirement that Employer request such services for
     Employee to be entitled to said payment; or

     (ii) violates any of the provisions of the Confidential and Proprietary
     Information or the Non-Compete provisions set forth in paragraphs Thirteen
     (13) and Fourteen (14) herein.

     3. Compensation:
          (a) For services rendered by the Employee under this Agreement, the
Company shall pay the Employee a salary of Fifty-Three Thousand, One Hundred and
Eighty-Eight ($53,188) Dollars per year (which includes $5,000 of deferred
compensation) (the "Base Salary"), which Base Salary shall be increased each
year by the amount of the increase in the Consumer Price Index for the New York
Metropolitan region.

          (b) Employee will receive the following annual bonus compensation:

          2.5% of the Company's consolidated pre-tax profits, less the 2.5%
          bonus amount paid to Employee by Helm pursuant to the Company's
          earning that are consolidated with Helm.

          For purposes of calculating any bonus, "pretax profit" of the Company
will mean consolidated profits of the Company before payment of all local, state
and federal income taxes, but after deduction for: (i) all expenses of any
subsidiary companies and divisions allocable to that year; (ii) the payment of
any management fee incurred for carrying out the activities of the Company; and
(iii) the payment of any bonuses to employees of each company of Employer.

          Pretax profits will be determined in accordance with generally
accepted accounting principles and shall include only the results from
operations under each company's direct and complete control. Employer will remit
payment of any bonus to Employee within thirty (30) days of the date Employer's
independent auditors complete the financial statements of the Company.

     4. Deferred Compensation Plan: As further consideration for Employee's
services under this Agreement, Employer agrees to provide Employee with deferred
compensation pursuant to the program set forth in Exhibit A which is attached
hereto and made a part hereof. In the event this Agreement is terminated, or at
its expiration, if not renewed, Employee shall have the right to receive that
portion of his vested deferred compensation paid to him within the period
prescribed by the Deferred Compensation Program.

     5. Duties:
     (a) The Employee is employed as Chairman of the Executive Committee of the
Company. His duties shall be consistent with the

                                       -2-

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responsibilities of such office, as same are directed by the Company's Board of
Directors. Employee shall be responsible for all day-to-day operations related
to such office and shall perform the activities related to such office as
assigned to him by the Company's Board of Directors. Employee shall not be
required to relocate his residence to perform his duties under this Agreement.

     (b) The Company recognizes that Employee, from time to time, may seek to
acquire, on his own or as a member of a group, various business enterprises. In
any instance when, in Employee's opinion, a potential acquisition with which
Employee may be involved presents a potential conflict of interest with, or an
opportunity for, the Company, Employee shall discuss the matter with the
Company's Board of Directors and obtain approval from the Board of Directors
before proceeding with his involvement; provided, however, that such approval
need not be obtained if the sales, net income before taxes and stockholders'
equity of the enterprise in question are not more than $4,000,000, $600,000 and
$750,000, respectively, for and as of the end of the enterprise's last fiscal
year. No claim may be made by, or on behalf of, the Company against Employee as
to any acquisition with respect to which Employee has complied with the
provisions of this subparagraph.

     6. Extent of Services and Agreement Not To Compete: During the term of his
employment, Employee will devote such time to the performance of his services
for the Company as he considers necessary to properly perform his duties and
discharge his responsibilities; however, although the Company recognizes that
Employee will be involved in various other business activities, no other
work-related activities of Employee shall be in competition with any of the
Company's activities and such activities shall be first approved by the
Company's Board of Directors.

     7. Vacation: Employee shall be entitled each year to a vacation of four (4)
weeks, during which time his compensation shall be paid in full.

     8. Automobile Allowance: During the term of this Agreement, Employer will
provide Employee with a reasonable pro-rata allowance (20%) that will enable
Employee to lease a top of the line Jaguar Sedan. Employee shall cover all costs
of insurance and maintenance related to the use of this automobile.

     9. Fringe Benefits: The Employee shall be entitled to participate on the
same bases, except where stated otherwise in this Agreement, and subject to the
same qualifications as other executives of the Employer, in any pension, profit
sharing, stock purchase, savings, hospitalization, sick leave and other fringe
benefit plans in effect from time to time with respect to executives of Employer
(the "Fringe Benefits"). Employer agrees that each of the Fringe Benefits of the
Employer in effect on the date hereof, or at any time during the Employment
Period shall not be terminated or modified in any manner which reduces the
benefits of the Employee without first obtaining the written

                                       -3-

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consent of the Employee.

     10. Common Stock Purchase Warrant: As further consideration for the
Employee's consent to enter into this Agreement, the Company's Board of
Directors has agreed to issue the Employee a total of 150,000 Common Stock
Purchase Warrants (the "Warrants"). The Warrants will entitle the Employee to
purchase 75,000 shares of the Company's restricted common stock at a price of
$14.00 per share and 75,000 shares of common stock at $22.00 per share over a
five (5) year and a ten (10) year period, respectively. The Warrants will be
evidenced by certificates as set forth in Exhibit B, which Exhibit further
defines all terms and conditions thereof.

     11. Expenses: The Employee shall be entitled to reimbursement, upon
presentation of a voucher indicating the amount and purpose, for reasonable
expenses incurred on behalf of the Employer.

     12. Termination for Disability: In the event that the Employee shall have
been prevented from substantially rendering the services required under this
Agreement by reason of his disability (as confirmed by medical authority and
Social Security guidelines) for a period of six (6) consecutive months (or 180
consecutive days), Employer shall have the right to terminate this Agreement
upon thirty (30) days written notice, provided such disability continues during
said notice period. Employer will provide Helm Resources, Inc., or its designee,
with a pro-rata payment that should be twenty (20%) per cent of such disability
insurance payment that provides Employee with annual disability payments in an
amount equal to the greater of Ten Thousand ($10,000) Dollars per month or sixty
(60%) per cent of the Employee's Base Salary under which the Employee is the
insured and beneficiary.

     13. Termination:

          (a) Termination for Employee's Breach. Employer shall have the right
to terminate this Agreement and the employment hereunder if Employee violates
his responsibilities under paragraph 5. of this Agreement and such violation
continues after having received notice of such violation and thirty (30) days to
cure such violations to the satisfaction of Employer's Board of Directors.
Employer may also immediately terminate this Agreement and the employment
hereunder by reason of: (i) determination by Employer's Board of Directors that
there has been a defalcation of the Employer's funds by Employee, (ii)
conviction of Employee on a felony charge, commission of an act of moral
turpitude or; (iii) determination by Employer's Board of Directors that the
Employee has had unauthorized discussions of Employer's business activities, or
improperly disclosed trade secrets or confidential information concerning
Employer's business activities or proposed business activities.

          (b) Termination for Employer's Breach: Employee shall have the right
to terminate this Agreement if (i) the Employer materially breaches any of the
provisions hereof and such breach is not cured within thirty (30) days after the
Employer receives written notice from Employee

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thereof or (ii) the majority of Employer's Board of Directors is no longer
comprised of persons who were nominated or supported by a majority of the
Company's current management group (Messrs. Frame, Calvert, Pearlman and Lawi).
In such event, or in the event of a wrongful termination of Employee, all monies
due to Employee through the term of this Agreement, including the Severance
Payment, shall be paid by Employer in a lump sum amount within thirty (30) days
of Employee's termination, with bonuses to be paid quarterly based on the
relevant performance criteria of the Company; provided, however, that in no
event will bonuses payable be less than the average of all bonuses paid under
this Agreement during the immediately preceding three (3) years. Employee shall
have no obligation to mitigate his loss or any occasioned damages as a result of
such termination, or perform any services to receive such payments.

     14. Confidential and Proprietary Information: Employee recognizes that
Employer's business involves the handling of confidential information of both
Employer and its clients and requires a confidential relationship between
Employer and its clients and also between Employer and Employee. Employer's
business requires the fullest practical protection and confidential treatment of
various information, trade secrets, data and other knowledge of both Employer's
clients and Employer which will be conceived or learned by Employee in the
course of his employment. Accordingly, Employee agrees to keep secret all
confidential information, trade secrets and proprietary information acquired by
him during his employment concerning the business and affairs of the Employer
(the "Information") and further agrees for the period of his employment and at
all times following the termination of his employment, for any reason, not to
disclose any such Information to any person, firm or corporation other than as
directed by Employer, unless and until such Information becomes publicly known
outside of Employer (other than through any violation by the Employee of his
obligation hereunder). Employee also agrees, upon request by Employer, to
execute a confidentiality and non-disclosure agreement if Employer has same
prepared to protect the confidentiality of certain information relating to the
Company.

     15. Employee's Non-Compete.
     (a) In connection with its business, Employer has developed and refined
(and will in the future develop and refine) numerous techniques, procedures,
methods, and data used in connection with its business. In addition. Employer
has developed (and will in the future develop) substantial goodwill with its
customers, clients, and generally within the geophysical and energy exploration
industry. This goodwill is of extreme importance to the future financial success
of Employer because of the highly specialized nature of Employer's business.
During Employee's association with Employer, Employee has or will become
familiar with the nature of Employer's business and with these special
techniques, procedures, methods and data and will become associated with and
participate in Employer's goodwill.

     (b) Therefore, for so long as Employee is associated with Employer as an
officer, director, employee or consultant and for a period of eighteen (18)
months after the date when Employee ceases to be associated with Employer in any
such capacity ("Termination Date"),

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Employee shall not, directly or indirectly, for his own account or for the
account of others, as an officer, director, stockholder, owner, partner,
employee, promoter, consultant, manager, advisor or otherwise, engage in or
solicit the same or similar business(es) as Employer is engaged in on the
Termination Date, within a Two Hundred (200) mile radius of (i) Houston, Texas,
(ii) New Orleans, Louisiana, or (iii) any other city in which Employer has an
office on the Termination Date. In addition, Employee agree that, for so long as
Employee is associated with Employer as an officer, director, employee or
consultant, and for a period of two (2) years after the Termination Date,
Employee shall not, directly or indirectly, solicit or induce, or attempt to
solicit or induce, any employee to leave Employer for any reason whatsoever.

     16. Remedies. In the event of any breach of Employee's covenants contained
in Paragraph 13 or 14, Employer would suffer immediate and irreparable harm for
which Employer would not have an adequate remedy at law. Accordingly, Employee
understands that in the event of any breach of Employee's covenants contained in
paragraph 13 or 14, Employer shall be entitled to injunctive relief as well as
any and all other applicable remedies at law or in equity available to Employer.

     17. Miscellaneous Provisions:

          (a) Notices and Communications. All notices and communications
hereunder shall be in writing and shall be hand delivered or sent postage
prepaid by registered or certified mail, return receipt requested, to the
addresses first above written or to such other address of which notice shall
have been given in the manner herein provided.

          (b) Entire Agreement. All prior agreements and understandings between
the parties with respect to the subject matter of this agreement are superseded
by this Agreement, and this Agreement constitutes the entire understanding
between the parties with respect to employment of the Employee by Employer, and
Employer and Employee hereby release the other from any claims or amounts due
under any prior agreements. This Agreement may not be modified, amended, changed
or discharged, except by a writing signed by the parties hereto and then only to
the extent therein set forth.

          (c) Non-Assignment. This agreement shall be binding upon and inure to
the benefit of the parties hereto, and any administrator, executor or successor
of Employer. This Agreement may not be assigned by either of the parties hereto
without prior written consent of the other party.

          (d) Waiver. No waiver of any breach of this Agreement or of any
objection to any act or omission connected herewith shall be implied or claimed
by any party, or be deemed to constitute a consent to any continuation of such
breach, act or omission, unless in a writing signed by the party against whom
enforcement of such waiver or consent is sought, and then only to the extent
therein set forth.

          (e) Section Headings. The section headings of this

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Agreement are solely for the purpose of convenience and shall neither be deemed
a part of this Agreement nor used in any interpretation thereof.

          (f) Governing Law. This Agreement and the relationship of the parties
shall be governed by, and construed in accordance with, the laws of the State of
Texas.

          (g) Legal Expenses. All legal fees and expenses incurred by Employee
in attempts to receive the benefits granted hereunder or to enforce this
Agreement or any of its terms will be paid by the Company providing Employee's
claims are not dismissed in a summary proceeding.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement to be
effective as of the day and year first above written

ATTEST                                          SEITEL, INC.

/s/ [ILLEGIBLE]                                 By: /s/ [ILLEGIBLE], President
-------------------                                 --------------------------

WITNESS:

/s/ [ILLEGIBLE]                                     /s/ [ILLEGIBLE]
-------------------                                 ---------------

                                       -7-<PAGE>

                                                                   EXHIBIT 10.33

                              EMPLOYMENT AGREEMENT

     THIS AGREEMENT is effective as of January 1, 1993, and has been entered
into between Seitel, Inc., a Delaware corporation with its principal offices at
50 Briar Hollow Lane, 7th Floor West, Houston, Texas 77027 (hereinafter together
with its subsidiaries, and including any successors in interest or assigns,
called "Employer" or "Company", except where otherwise specifically referenced)
and Debra D. Valice (hereinafter call the "Employee").

WHEREAS, Employer desires to employ the Employee on the terms and conditions set
forth herein; and

WHEREAS, the Employee desires to be employed by the Employer on the terms and
conditions set forth herein:

NOW THEREFORE, in consideration of the mutual covenants, agreement and
warranties contained in this Agreement, and intending to be legally bound, the
parties agree as follows:

     1.   Employment: The Employer hereby employs the Employee, and the Employee
hereby accepts employment, upon the terms and conditions hereinafter set forth.

     2.   Term: The term of this Agreement shall begin on January 1, 1993 and
shall terminate on December 31, 1998 (being five (5) years after the
commencement date). The term of this Agreement is hereafter sometimes referred
to as the "Employment Period"; and each year of the Employment Period; beginning
January 1st and ending December 31st of any year is hereafter sometimes
referred to as the "Annual Period". The term of this Agreement will
automatically be extended for an additional five (5) year period if at least
sixty (60) days prior to January 1, 1996 written notice of termination has not
been given by either Party. If such termination notice is given by Employer to
Employee, Employer will pay Employee for two (2) additional years after the end
of the Employment Period the compensation then applicable, which shall include
for purposes of this payment the Base Salary, together with the average of all
bonus and commission payments paid to Employee for the prior three (3) years
(the Severance Payment). The Severance Payment will be paid provided Employee is
available to act as a consultant to Employer for up to Fifty (50%) per cent of
Employee's work related time (as compared to her final year of employment)
(hereinafter "Consulting Services"). If Employee terminates this Agreement, the
Employer shall be under no obligation to pay Employee any Severance Payment.
Employer shall have no obligation to pay Employee any Severance Payment if
Employee:

     (i)  refuses to perform the consulting services requested by Employer
although there is no requirement that Employer request such services for
Employee to be entitled to said payment; or

     (ii) violates any of the provisions of the Confidential and Proprietary
Information or the Non-Compete provisions set forth in paragraphs Thirteen (13)
and Fourteen (14) herein.

     3.   Payments to Employee:

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Employment Agreement - Debra D. Valice - Seitel -1/1/93 - page 2

          (a)  For services rendered by the Employee under this Agreement, the
Company shall pay the Employee an annual base salary as follows:

          1993 Base Salary - $106,090.00 per year;

(the "Base Salary"), which Base Salary shall be paid in twenty-four (24)
bimonthly installments and may be increased from time to time as approved by the
Company's Board of Directors, and will be increased each year by any increase in
the Consumer Price Index for the recently completed calendar year as applied to
the Houston, Texas region.

          (b)  Employee will receive the following annual bonus compensation:

               2% of the Company's pre-tax-profits up to $125,000, plus an
               additional amount as determined by the Board of Directors of the
               Company (which payment shall be made within five (5) days
               following the Company's receipt of its audited year-end financial
               statements, but in no event later than March 15th of the
               following year).

          (c)  If (i) the employment agreement of Herbert Pearlman or the
employment agreement of David Lawi is ever terminated by the Company prior to
the completion of the term thereof, or (ii) Messrs. Pearlman and Lawi should
resign from the Company's Board of Directors prior to completion of their
Employment Period, as described in their employment agreements, or (iii) the
majority of the members of the Company's Board of Directors is no longer
nominated and supported by a majority of the Company's current management team
(Messrs. Frame, Calvert, Pearlman and Lawi), the Employee shall have the right
to terminate this Agreement as set forth in Section 13(b) hereof and shall
receive from the Company all compensation required to be paid during the term of
this Agreement as set forth in paragraph 3 hereof, as well as the Severance
Payment provided in Section 2 hereof, and Employee shall have no obligation to
perform any services in order to receive such payments.

               For purposes of calculating any bonus, "pretax profit" of the
Company will mean consolidated profits of the Company before payment of (i) all
local, state and federal income taxes and (ii) payment of any severance or
buy-out payments to Messrs. Pearlman and/or Lawi, but after deduction for: (i)
all expenses of any subsidiary companies and divisions allocable to that year;
(ii) the payment of any management fee incurred for carrying out the activities
of the Company; and (iii) the payment of any bonuses to employees of each
company of Employer.

Pretax profits will be determined in accordance with generally accepted
accounting principles and shall include only the results from operations under
each company's direct and complete control. Employer will remit payment of any
bonus to Employee within thirty (30) days of the date Employer's independent
auditors complete the financial statements of the Company.

     4.   Deferred Compensation Plan: As further consideration for Employee's
services under this Agreement, Employer agrees to provide Employee with deferred
compensation pursuant to the program set forth in Exhibit A which is attached
hereto and made a part hereof. In the event this Agreement is terminated, or at
its expiration, if not renewed, Employee shall have the right to receive that
portion of her vested deferred compensation payable to her within the period
prescribed by the Deferred Compensation Program.

<PAGE>

Employment Agreement - Debra D. Valice - Seitel - 1/1/93 - page 3

     5.   Duties: The Employee is employed as Chief Financial Officer of the
Company. Her duties shall be consistent with the responsibilities of such
office, as same are directed by the Company's Board of Directors. Employee shall
be responsible for all day-to-day operations related to such office and shall
perform the activities related to such office as assigned to her by the
Company's Board of Directors. Employee shall not be required to relocate her
residence to perform her duties under this Agreement.

     6.   Extent of Services: During the term of her employment, Employee will
devote One Hundred (100%) per cent of her work-related time, attention and
energies to the business of the Employer, unless written permission to the
contrary is given by the Company's Board of Directors.

     7.   Vacation: Employee shall be entitled each year to a vacation of four
(4) weeks, during which time her compensation shall be paid in full.

     8.   Automobile Allowance: During the term of this Agreement, Employer will
provide Employee with an automobile allowance of at least $700.00 per month.

     9.   Fringe Benefits: The Employee shall be entitled to participate on the
same bases, except where stated otherwise in this Agreement, and subject to the
same qualifications as other executives of the Employer, in any pension, profit
sharing, stock purchase, savings, hospitalization, sick leave and other fringe
benefit plans in effect from time to time with respect to executives of Employer
(the "Fringe Benefits"). Employer agrees that each of the Fringe Benefits of
the Employer in effect on the date hereof, or at any time during the Employment
Period shall not be terminated or modified in any manner which reduces the
benefits of the Employee without first obtaining the written consent of the
Employee.

     10.  Common Stock Purchase Warrant: As further consideration for the
Employee's consent to enter into this Agreement, the Company's Board of
Directors has agreed to issue the Employee a total of 40,000 Common Stock
Purchase Warrants (the "Warrants"). The Warrants will entitle the Employee to
purchase 20,000 shares of the Company's restricted common stock at a price of
$14.00 per share and 20,000 shares of common stock at $22.00 per share over a
seven (7) year and a ten (10) year period, respectively. The Warrants will be
evidenced by certificates as set forth in Exhibit B, which Exhibit further
defines all terms and conditions thereof.

     11.  Expenses: The Employee shall be entitled to reimbursement, upon
presentation of a voucher indicating the amount and purpose, for reasonable
expenses incurred on behalf of the Employer.

     12.  Termination for Disability: In the event that the Employee shall have
been prevented from substantially rendering the services required under this
Agreement by reason of her disability (as confirmed by medical authority and
Social Security guidelines) for a period of six (6) consecutive months (or 180
consecutive days), Employer shall have the right to terminate this Agreement
upon thirty (30) days written notice, provided such disability continues during
said notice period. If the Employer shall terminate this Agreement as a result
of Employee's disability, Employee shall receive from Employer, until reaching
65 years of age, annual disability payments in an amount equal to the greater of
Ten Thousand and no/100 Dollars ($10,000.00) per month, or sixty (60%) percent
of the Employee's Base Salary (which shall include any disability payments from
state or federal authorities). In order to cover this payment, Employer shall
purchase such disability insurance necessary under which the Employee is the
insured and beneficiary.

<PAGE>

Employment Agreement - Debra D. Valice - Seitel -1/1/93 - page 4

     13.  Termination:
          (a) Termination for Employee's Breach. Employer shall have the right
to terminate this Agreement and the employment hereunder if Employee violates
her responsibilities under paragraph 5. of this Agreement and such violation
continues after having received notice of such violation and thirty (30) days to
cure such violations to the satisfaction of Employer's Board of Directors.
Employer may also immediately terminate this Agreement and the employment
hereunder by reason of: (i) determination by Employer's Board of Directors that
there has been a defalcation of the Employer's funds by Employee, (ii)
conviction of Employee on a felony charge, commission of an act of moral
turpitude or; (iii) determination by Employer's Board of Directors that the
Employee has had unauthorized discussions of Employer's business activities, or
improperly disclosed trade secrets or confidential information concerning
Employer's business activities or proposed business activities.

          (b) Termination for Employer's Breach: Employee shall have the right
to terminate this Agreement if (i) Employer terminates the employment contracts
of Herbert Pearlman or David Lawi, or (ii) Messrs. Pearlman and Lawi resign from
the Company's Board of Directors prior to the resignation of Messrs. Frame and
Calvert, or (iii) the majority of Employer's Board of Directors is no longer
comprised of persons who are nominated or supported by a majority of the
Company's current management group (Messrs. Frame, Calvert, Pearlman and Lawi),
or (iv) Employer materially breaches any of the provisions hereof and such
breach is not cured within thirty (30) days after the Employer receives written
notice from Employee thereof. In such event, or hi the event of a wrongful
termination of Employee, all monies due to Employee through the term of this
Agreement, including the Severance Payment, shall be paid by Employer in a lump
sum amount within thirty (30) days of Employee's termination, with bonuses to be
paid quarterly for the remaining term of this Agreement based on the relevant
performance criteria of the Company; provided, however, that in no event will
bonuses payable be less than the average of all bonuses paid under this
Agreement during the immediately preceding three (3) years. Employee shall have
no obligation to mitigate her loss or any occasioned damages as a result of such
termination.

     14.  Confidential and Proprietary Information: Employee recognizes that
Employer's business involves the handling of confidential information of both
Employer and its clients and requires a confidential relationship between
Employer and its clients and also between Employer and Employee. Employer's
business requires the fullest practical protection and confidential treatment of
various information, trade secrets, data and other knowledge of both Employer's
clients and Employer which will be conceived or learned by Employee in the
course of her employment. Accordingly, Employee agrees to keep secret all
confidential information, trade secrets and proprietary information acquired by
her during her employment concerning the business and affairs of the Employer
(the "Information") and further agrees for the period of her employment and at
all times following the termination of her employment, for any reason, not to
disclose any such Information to any person, firm or corporation other than as
directed by Employer, unless and until such Information becomes publicly known
outside of Employer (other than through any violation by the Employee of her
obligation hereunder). Employee also agrees, upon request by Employer, to
execute a confidentiality and non-disclosure agreement if Employer has same
prepared to protect the confidentiality of certain information relating to the
Company.

     15.  Employee's Non-Compete.

<PAGE>

Employment Agreement - Debra D. Valice - Seitel - 1/1/93 - page 5

          (a) In connection with its business, Employer has developed and
refined (and will in the future develop and refine) numerous techniques,
procedures, methods, and data used in connection with its business. In addition,
Employer has developed (and will in the future develop) substantial goodwill
with its customers, clients, and generally within the geophysical and energy
exploration industry. This goodwill is of extreme importance to the future
financial success of Employer because of the highly specialized nature of
Employer's business. During Employee's association with Employer, Employee has
or will become familiar with the nature of Employer's business and with these
special techniques, procedures, methods and data and will become associated with
and participate in Employer's goodwill.

          (b) Therefore, for so long as Employee is associated with Employer as
an officer, director, employee or consultant and for a period of Twelve,(12)
months after the date when Employee ceases to be associated with Employer in any
such capacity ("Termination Date"), Employee shall not, directly or indirectly,
for her own account or for the account of others, as an officer, director,
stockholder, owner, partner, employee, promoter, consultant, manager, advisor or
otherwise, engage in or solicit the same or similar business(es) as Employer is
engaged in on the Termination Date, within a Two Hundred (200) mile radius of
(i) Houston, Texas, (ii) New Orleans, Louisiana, or (iii) any other city in
which Employer has an office on the Termination Date. In addition, Employee
agrees that, for so long as Employee is associated with Employer as an officer,
director, employee or consultant, and for a period of two (2) years after the
Termination Date, Employee shall not, directly or indirectly, solicit or induce,
or attempt to solicit or induce, any employee to leave Employer for any reason
whatsoever.

     16.  Remedies. In the event of any breach of Employee's covenants contained
in Paragraph 13 or 14, Employer would suffer immediate and irreparable harm for
which Employer would not have an adequate remedy at law. Accordingly, Employee
understands that in the event of any breach of Employee's covenants contained in
paragraph 13 or 14, Employer shall be entitled to injunctive relief as well as
any and all other applicable remedies at law or in equity available to Employer.

     17.  Miscellaneous Provisions:
          (a) Notices and Communications. All notices and communications
hereunder shall be in writing and shall be hand delivered or sent postage
prepaid by registered or certified mail, return receipt requested, to the
addresses first above written or to such other address of which notice shall
have been given in the manner herein provided.

          (b) Entire Agreement. All prior agreements and understandings between
the parties with respect to the subject matter of this agreement are superseded
by this Agreement, and this Agreement constitutes the entire understanding
between the parties with respect to employment of the Employee by Employer, and
Employer and Employee hereby release the other from any claims or amounts due
under any prior agreements. This Agreement may not be modified, amended, changed
or discharged, except by a writing signed by the parties hereto and then only to
the extent therein set forth.

          (c) Non-Assignment. This agreement shall be binding upon and inure to
the benefit of the parties hereto, and any administrator, executor or successor
of Employer. This Agreement may not be assigned by either of the parties
hereto without prior written consent of the other party.

          (d) Waiver. No waiver of any breach of this Agreement or of any
objection to any act or omission connected herewith shall be implied or claimed
by any party, or be deemed to constitute a consent to any continuation of such
breach, act or omission, unless in a writing signed by the party

<PAGE>

Employment Agreement - Debra D. Valice - Seitel -1/1/93 - page 6

against whom enforcement of such waiver or consent is sought and then only to
the extent therein set forth.

          (e) Section Headings. The section headings of this Agreement are
solely for the purpose of convenience and shall neither be deemed a part of this
Agreement nor used in any interpretation thereof.

          (f) Governing Law. This Agreement and the relationship of the parties
shall be governed by, and construed in accordance with, the laws of the State of
Texas.

          (g) Legal Expenses. All legal fees and expenses incurred by Employee
in attempts to receive the benefits granted hereunder or to enforce this
Agreement or any of its terms will be paid by the Company providing Employee's
claims are not dismissed in a summary proceeding.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement to be
effective as of the day and year first above written.

Attest                                                  Seitel, Inc.

/s/ [ILLEGIBLE]                                         /s/ [ILLEGIBLE]
-------------------                                     -------------------

Witness:                                                Debra D. Valice

/s/ [ILLEGIBLE]                                         /s/ Debra D. Valice
---------------                                         --------------------

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