EXHIBIT 10.1

                              AMENDED AND RESTATED
                         OCEANEERING INTERNATIONAL, INC.
                    SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

                                    ARTICLE I
                                     Purpose

      1.1 Purpose of Plan. The purpose of the Amended and Restated Oceaneering
International, Inc. Supplemental Executive Retirement Plan (the "Plan") is to
advance the interests of Oceaneering International, Inc. and its subsidiaries
and affiliates (hereinafter sometimes collectively or individually referred to
as the "Company") and of its owners by attracting and retaining in its employ
highly qualified individuals for the successful conduct of its business. The
Company hopes to accomplish these objectives by helping to provide for the
retirement of its key employees selected to participate in the Plan.

      1.2 ERISA Status. The Plan is intended to qualify for certain exemptions
under Title I of the Employee Retirement Income Security Act of 1974, as amended
("ERISA"), provided for plans that are unfunded and maintained primarily for the
purpose of providing deferred compensation for a select group of management or
highly compensated employees.

                                   ARTICLE II
                                   Definitions

      2.1   "Account" means collectively the Participant's Company Account
and the Participant's Deferral Account.

      2.2 "Account Value" means, at any given time, the sum of all amounts
credited to the Participant's Account, adjusted for any income, gain or loss and
any payments attributable to such account.

      2.3 "Active Participant" means a Participant who qualifies as an Active
Participant under Section 3.1.

      2.4 "Beneficiary" means the person designated by each Participant, on a
form provided by the Company for this purpose, to receive the Participant's
distribution under Article V in the event of the Participant's death prior to
receiving complete payment of his Account. In order to be effective under this
Plan, any form designating a Beneficiary must be delivered to the Committee
before the Participant's death. In the absence of such an effective designation
of a Beneficiary, "Beneficiary" means the Participant's spouse or, if there is
no spouse on the date of Participant's death, the Participant's estate.

      2.5 "Board" means the Board of Directors of the Company or the board of
directors of a company that is a successor to the Company.

      2.6 "Bonus" means any bonus paid to a Participant under any plan, policy
or program of the Company providing for the payment of annual bonuses to
employees.

      2.7 "Change of Control" means if (i) a third person, including a "group"
as defined in Section 13(d)(5) of the Securities Exchange Act of 1934, becomes
the beneficial owner of shares

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of Oceaneering International, Inc. having 30% or more of the total number of
votes that may be cast for the election of directors of Oceaneering
International, Inc. or (ii) as a result of, or in connection with, any cash
tender or exchange offer, merger or other business combination, sale of assets
or contested election or any combination of the foregoing transactions (a
"Transaction"), the persons who were directors of Oceaneering International,
Inc. before the Transaction shall cease to constitute a majority of the Board of
Oceaneering International, Inc. or any successor to Oceaneering International,
Inc. Without limiting the foregoing, no "Change of Control" shall be deemed to
have taken place for purposes of this Plan, if a person or persons is appointed
or elected as a member(s) of the Board as a result of or in connection with a
Transaction or other event unless item (i) or (ii) above shall also have
occurred.

      2.8 "Company Account" means the account maintained by the Committee
reflecting each Participant's Company Contributions, together with any income,
gain or loss and any payments attributable to such account.

      2.9 "Company Contribution" means the total contributions credited to a
Participant's Company Account for any one Plan Year pursuant to the provisions
of Section 3.2.

      2.10 "Company Contribution Value" means, at any given time with respect to
a particular Company Contribution, the amount of the Company Contribution,
adjusted by any income, gain or loss and any payments attributable to such
account.

      2.11  "Compensation" means monthly base salary before any reductions.

      2.12  "Committee" means the committee appointed by the Board to
administer the Plan.

      2.13 "Deferral Account" means the account maintained by the Committee
reflecting each Participant's Deferral Contributions, together with any income,
gain or loss and any payments attributable to such account.

      2.14 "Deferral Account Value" means, at any given time, 100% of the total
amount of Deferral Contributions credited to the Participant's Deferral Account,
adjusted by any income, gain or loss and any payments attributable to such
account.

      2.15 "Deferral Contribution" means Compensation or Bonus that is credited
to a Participant's Deferral Account pursuant to the provisions of Sections 3.3
and 3.4.

      2.16 "Effective Date" means July 1, 1997 as to the original Plan, and
January 1, 2000 as to this Amended and Restated Plan.

      2.17 "Eligible Employee" means a highly compensated or management employee
of the Company who meets the criteria established by the Committee to determine
eligibility for the Plan.

      2.18 "Fiscal Year" means the twelve-month period commencing each April 1.

      2.19 "Participant" means an individual who is or was an Eligible Employee
and has an Account balance under the Plan, including an Active Participant.

      2.20  "Plan" means this Amended and Restated Oceaneering International,
Inc. Supplemental Executive Retirement Plan and any amendments hereto.

      2.21 "Plan Obligations" means, on any given date, the sum of the Account
Values of all Participants. With respect to each Participant, "Plan Obligations"
means such Participant's Account Value on the applicable date.

      2.22 "Plan Year" means the 12-month period beginning July 1 and ending
June 30.

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      2.23 "Selected Index" means, with respect to any Account, the investment
vehicle with reference to which the value of such Account is determined.

      2.24  "Vested Account Value" means the sum of the Participant's Vested
Company Contribution Values and the Participant's Deferral Account Value.

      2.25 "Vested Company Contribution Value" means, with respect to a
particular Company Contribution, the applicable Company Contribution Value
multiplied by the applicable Vested Percentage.

      2.26 "Vested Percentage" means the percentage as to which a Participant is
vested in a particular contribution, as determined under Section 4.5.

      2.27 "Year[s] of Participation" means each 12 consecutive months of
employment after the individual first becomes a Participant.

                                   ARTICLE III
                                  Contributions

      3.1 Selection of Active Participants. With respect to each Plan Year or
portion thereof, the Committee shall select, in its discretion, those Eligible
Employees approved to participate in the Plan, or participation may be
determined in any other manner authorized by the Company. The selected
individuals shall be the Active Participants for that Plan Year. Active
Participant status shall terminate upon a Participant's termination of
employment, and no contributions shall be made with respect to periods
thereafter unless the Participant resumes employment and is again selected as an
Active Participant in the Plan.

      3.2 Company Contributions. With respect to each Plan Year or portion
thereof, the Committee shall declare a contribution percentage for each Active
Participant's Company Account. The Committee has the right to change the
contribution percentage for a Participant during the Plan Year. The contribution
percentage declared for a Participant may, but need not be, the same as the
contribution percentage declared for other Participants. Company Contributions
shall be credited as of the last day of each month of the Plan Year or at such
other times as determined by the Committee to each Active Participant's Company
Account, in an amount equal to the contribution percentage declared for the
Participant multiplied by the Participant's Compensation.

      3.3 Participant Deferrals. For any Fiscal Year, the Committee may, in its
sole discretion, allow an Active Participant to elect to defer each month the
present payment by the Company of any whole percentage (or dollar amount) of his
Compensation that would otherwise be paid during such Fiscal Year, and instead
have that amount credited to his Deferral Account. The Compensation otherwise
currently payable to the Participant shall be reduced by the amount the
Participant elected to have contributed to the Participant's Deferral Account,
which shall be a Deferral Contribution. In addition, for any Fiscal Year, the
Committee may, in its sole discretion, allow an Active Participant to elect to
defer the present payment by the Company of any whole percentage (or dollar
amount) of his Bonus earned during such Fiscal Year, and instead have that
amount credited to his Deferral Account. The Bonus otherwise payable to the
Participant shall be reduced by the amount the Participant elected to have
contributed to the Participant's Deferral Account, which shall be a Deferral
Contribution.

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      3.4 Manner of Deferral Election. The Committee shall prescribe, in its
sole discretion, the procedures and limitations for Deferral Contributions, if
any. Elections to make Deferral Contributions shall be in writing, signed by the
Participant, in a form supplied by the Company. Unless the Committee otherwise
provides in its sole discretion, the form must be completed, signed and returned
to the Committee prior to the beginning of the Fiscal Year for which the
election is to be effective and a Participant's election shall be irrevocable
for the applicable period(s) for which it was filed. The Committee may provide
that a Participant's election shall be effective until it is revoked. An
election may be revoked prospectively by notice to the Participant from the
Committee that the election is terminated.

                                   ARTICLE IV
                                    Accounts

      4.1 Company Accounts. The Committee shall establish and maintain an
individual bookkeeping account for each Participant, which shall be the
Participant's Company Account. The Committee shall credit the amount of each
Company Contribution made on behalf of a Participant to such Participant's
Company Account as of the last day of each month of the Plan Year for which the
Company Contribution was made or at such other times as determined by the
Committee. The Committee shall further debit and/or credit the Participant's
Company Account with any income, gain or loss and any payments attributable to
such Account on a daily basis, or at such other times as it shall determine
appropriate. The sole purpose of the Participant's Company Account is to record
and reflect the Company's Plan Obligations related to Company Contributions to
each Participant under the Plan. The Company shall not be required to segregate
any of its assets with respect to Plan Obligations, nor shall any provision of
the Plan be construed as constituting such segregation.

      4.2 Deferral Accounts. The Committee shall establish and maintain an
individual bookkeeping account for each Participant, which shall be the
Participant's Deferral Account. The Committee shall credit the amount of each
Deferral Contribution made on behalf of a Participant to such Participant's
Deferral Account as soon as administratively feasible following the applicable
deferral. The Committee shall further debit and/or credit the Participant's
Deferral Account with any income, gain or loss and any payments attributable to
such Account on a daily basis, or at such other times as it shall determine
appropriate. The sole purpose of the Participant's Deferral Account is to record
and reflect the Company's Plan Obligations related to Deferral Contributions to
each Participant under the Plan. The Company shall not be required to segregate
any of its assets with respect to Plan Obligations, nor shall any provision of
the Plan be construed as constituting such segregation.

      4.3   Accruals to the Accounts.
            (a) The Committee shall designate one or more investment vehicles to
      serve as an index or indices for the purpose of determining amounts to be
      debited and/or credited to the Participant's Account. On a form supplied
      by the Company, a Participant may choose to allocate Company Contributions
      and his Deferral Contributions to the designated investment vehicles, and
      may change such allocation with respect to future Company Contributions
      and Deferral Contributions, such change in allocation to be

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      effective immediately. On a form supplied by the Company, a Participant
      may also exchange amounts already in the Participant's Company Account and
      Deferral Account between and among the designated investment vehicles as
      frequently as daily, or at other times as shall be determined by the
      Committee. A copy of any available Prospectus or other disclosure
      materials for each investment vehicle shall be made available to each
      Participant upon request. The investment vehicle pursuant to which
      investment gains/losses to any Account thereof are to be determined shall
      be referred to as the "Selected Index." The Committee shall select from
      time to time the Selected Index a Participant shall be deemed to have
      elected for purposes of all or any portion of his Account as to which he
      has not actually made an allocation election. The Committee may change at
      any time the Selected Indexes available under the Plan.

           (b)    Any "Selected Index" is solely for the purpose of determining
                  investment gains/losses to an Account, and nothing herein
                  shall obligate the Company to invest any part of its assets in
                  any investment vehicle serving as a Selected Index or in any
                  other investments.

      4.4 Nature and Source of Payments. The obligation to make distributions
under this Plan with respect to each Participant shall constitute a liability of
the Company to the Participant and any Beneficiary in accordance with the terms
of this Plan. All distributions payable hereunder shall be made from the general
assets of the Company, and nothing herein shall be deemed to create a trust of
any kind between the Company and any Participant or other person. No special or
separate fund need be established nor need any other segregation of assets be
made to assure that distributions will be made under this Plan. No Participant
or Beneficiary shall have any interest in any particular asset of the Company by
virtue of the existence of this Plan. Each Participant and Beneficiary shall be
an unsecured creditor of the Company.

      4.5   Vesting.
            (a) Normal Vesting: A Participant's Vested Percentage of each Plan
      Year's Company Contribution, adjusted by any income, gain or loss and any
      payments attributable thereto, shall be determined at the end of each Plan
      Year by the number of full Plan Years that the Participant remains as a
      Participant in the continuous employment of the Company from and after the
      first day of the Plan Year with respect to which the Company Contribution
      is made, as set forth in the following schedule:

- ---------------------------------------- -------------------------------------
     FULL PLAN YEARS OF CONTINUOUS
 EMPLOYMENT AS A PARTICIPANT BEGINNING
        WITH CONTRIBUTION YEAR                    VESTING PERCENTAGE
- ---------------------------------------- -------------------------------------
Less than 1                                               0%
- ---------------------------------------- -------------------------------------
At least 1 but less than 2                               33%
- ---------------------------------------- -------------------------------------
At least 2 but less than 3                               66%
- ---------------------------------------- -------------------------------------
At least 3                                               100%
- ---------------------------------------- -------------------------------------

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                  A Participant's Vested Percentage with regard to the
      Participant's Deferral Account will always be 100%.

            (b) Forfeiture: Upon termination of employment other than as
      described in Section 4.5(c), a Participant shall forfeit all amounts
      credited to his Account other than his Vested Account Value determined as
      of the close of business coincident with or next following the date on
      which the Participant terminated employment; provided, however, that
      amounts not so forfeited shall continue to be debited and credited in
      accordance with Section 5.4 from and after termination of employment.

            (c) Accelerated Vesting: The schedule above notwithstanding, the
      Participant shall have a Vested Percentage of 100% for his entire Account
      upon the soonest of the following to occur during the Participant's
      employment with the Company: (i) the date that the Participant has
      completed 10 Years of Participation, (ii) the date that the sum of the
      Participant's attained age and Years of Participation equals 65, (iii) the
      date of termination of the Participant's employment as a result of the
      Participant's death or disability, or (iv) the date of termination of the
      Participant's employment within 24 months following a Change of Control.
      In the event the Company terminates the Plan, all Participants will be
      100% vested in Accounts not theretofore forfeited. Cessation of Company
      Contributions under the Plan shall not be deemed a termination of the
      Plan.


                                    ARTICLE V
                                  Distributions

      5.1 Occasions for Distributions. The Company shall distribute a
Participant's Vested Account Value following the events and in the manner set
forth in this Article V. A Participant's Account shall be debited in the amount
of any distribution made from the Account as of the date of the distribution.

      5.2 Distribution Elections. Subject to rules established by the Committee,
a Participant may file a distribution election directing how his Vested Account
Value shall be distributed following his termination of employment for any
reason. Such distribution election must be made on a form supplied by the
Company for that purpose. To be effective, such distribution election must be
filed at least 12 months prior to the date the Participant's Vested Account
Balance is to be distributed. In the event the Participant files more than one
distribution election, the last distribution election shall control. Anything to
the contrary notwithstanding, the Committee, in its sole discretion, has the
right to substitute a lump-sum payment to the Participant equal to the
Participant's Vested Account Value

      5.3 Distribution on Account of Termination of Employment. If a Participant
terminates employment with the Company for any reason, including by reason of
death or disability, the Company shall distribute, or begin distributing to the
Participant (or the Participant's Beneficiary) within 45 days, the full amount
of the Participant's Vested Account Value. Such distributions shall be in the
form specified on the most recently filed distribution election form (unless the
Committee elects to substitute a lump-sum payment as described in

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Section 5.2). If no election form exists, the distribution will be distributed
as soon as practicable in the form of a lump-sum payment equal to the
Participant's Vested Account Value.

      5.4 Continuation of Accounts after Commencement of Distributions. If a
Participant's Vested Account Value is to be distributed in a form other than a
lump sum, then the Account shall continue to be credited (or debited) with
earnings or losses as described in Section 4.3, until the entire Vested Account
Value has been distributed.

                                   ARTICLE VI
                                    Committee

      6.1 Authority. The Committee shall have the authority, subject to the
provisions of the Plan, to establish, adopt and revise such rules and
regulations and to make all such determinations relating to the Plan as it may
deem necessary or appropriate for the administration of the Plan. The Committee
may correct any defect or supply any omission or reconcile any inconsistency in
this Plan or any agreement or document related to this Plan in the manner and to
the extent the Committee deems necessary or appropriate to carry this Plan into
effect. The Committee's interpretation of the Plan, and all decisions and
determinations by the Committee with respect to the Plan, shall be final and
binding on all parties.

      6.2 Delegation of Authority. The Committee may delegate any of its powers
or responsibilities to one or more members of the Committee or any other person
or entity.

      6.3   Procedures.  The Committee may establish procedures to conduct
its operations and to carry out its rights and duties under the Plan.

      6.4 Compensation and Expenses. The members of the Committee shall serve
without compensation for their services, but all expenses of the Committee and
all other expenses incurred in administering the Plan shall be paid by the
Company.

      6.5 Statements to Participants. Periodically, with the frequency
determined by the Committee in its sole discretion, but not less frequently than
annually, the Committee shall transmit to each Participant a written statement
regarding the Participant's Account activity for the period beginning on the
date following the effective date of the preceding statement and ending on the
effective date of the current statement.

      6.6 Indemnification. The Company shall indemnify the members of the
Committee and/or any of their delegates against the reasonable expenses,
including attorneys' fees, actually and appropriately incurred by them in
connection with the defense of any action, suit or proceeding, or in connection
with any appeal thereto, to which they or any of them may be a party by reason
of any action taken or failure to act under or in connection with the Plan and
against all amounts paid by them in settlement thereof (provided such settlement
is approved by independent legal counsel selected by the Company) and against
all amounts paid by them in satisfaction of a judgment in any such action, suit
or proceeding, except in relation to matters as to which it shall be adjudged in
a suit of final adjudication that such Committee member is liable for fraud,
deliberate dishonesty or willful misconduct in the performance of his duties;
provided that within 60 days after the institution of any such action, suit or
proceeding a Committee member has offered in writing to allow the Company, at
its own expense, to handle and defend any such action, suit or proceeding.

                                     Page 7

                                   ARTICLE VII
                            Amendment and Termination

      Power to Amend and/or Terminate Reserved. The Company retains the
unilateral power to amend the Plan, or to terminate the Plan at any time.
Without the consent of affected Participants or Beneficiaries, no such amendment
or termination shall adversely affect any Participants or Beneficiaries with
respect to their right to receive the applicable Vested Account Value,
determined as of the later of the date that the Plan amendment or termination is
adopted or by its terms to be effective.


                                  ARTICLE VIII
                                  Miscellaneous

      8.1 Plan Does Not Affect the Rights of Employee. Nothing contained in this
Plan shall be deemed to give any Participant the right to be retained in the
employment of the Company, to interfere with the rights of the Company to
discharge any Participant at any time or to interfere with a Participant's right
to terminate his employment at any time.

      8.2 Nonalienation and Nonassignment. Except for debts owed the Company by
a Participant or Beneficiary, no amounts payable or to become payable under the
Plan to a Participant or Beneficiary shall be subject in any manner to
anticipation, alienation, sale, transfer, assignment, pledge, encumbrance or
charge, whether voluntary, involuntary, by operation of law or otherwise, and
any attempt to so anticipate, alienate, sell, transfer, assign, pledge, encumber
or charge the same by a Participant or Beneficiary prior to distribution as
herein provided shall be null and void.

      8.3 Tax Withholding. The Company shall have the right to deduct from any
payments to a Participant or Beneficiary under the Plan any taxes required by
law to be withheld with respect to such payments. In addition, the Company shall
have the right to deduct from any Participant Deferrals or Company Contributions
any applicable employment taxes or other required withholdings with respect to a
Participant.

      8.4 Setoffs. To the fullest extent permitted by law, any amounts owed by a
Participant or Beneficiary to the Company may be deducted by the Company from
such Participant's Vested Account Value at the time and to the extent that such
Vested Account Value is otherwise payable hereunder.

      8.5 Construction. Unless the context clearly indicates to the contrary,
the masculine gender shall include the feminine and neuter, and the singular
shall include the plural and vice versa.

      8.6   Applicable Law.  The terms and provisions of the Plan shall be
construed in accordance with the laws of the State of Texas.

      8.7   Successors.  The Plan shall be binding upon the Company and its
successors and assigns, in accordance with its terms.

      8.8 Claims Procedure. A Participant or Beneficiary may make a claim for
Plan benefits by filing a written application for benefits with the Committee.
Such application shall

                                     Page 8

set forth the nature of the claim and any other information that the Committee
may reasonably request. The Committee shall notify the applicant of the benefits
determination within a reasonable time after receipt of the claim, which shall
not exceed 90 days unless special circumstances require an extension of time for
processing the claim. If such an extension is required, written notice of the
extension shall be furnished to the applicant prior to the end of the initial
90-day period. In no event shall such an extension exceed a period of 90 days
from the end of the initial period. The extension notice shall indicate the
special circumstances requiring an extension of time, and the date by which a
final decision is expected to be rendered.

      Notice of a claim denial, in whole or in part, shall be set forth in a
manner calculated to be understood by the applicant and shall contain the
following:

            (a)   the specific reason or reasons for the denial; and
            (b)   a specific reference to the pertinent Plan provisions on
      which the denial is based; and
            (c)   a description of any additional material or information
      necessary for the applicant to perfect the claim and an explanation of
      why such material or information is necessary; and
            (d)   an explanation of the Plan's claims review procedure.

      Participants shall be given timely written notice of the time limits
set forth herein for determinations on claims, appeal of claim denial and
decisions on appeal. If notice of a claim determination is not provided within
the applicable time frame described above, the claim shall be deemed denied and
the applicant may appeal the denial as set forth below.

      If a written claim results in a claim denial, either in whole or in part,
the applicant has the right to appeal. The appeal must be in writing. The
administrative process for appealing a claim is:

      Upon receipt of a claim denial, a Participant may file a written request,
      including any additional information supporting the claim, for
      reconsideration to the Committee within 60 days of receiving notification
      that the claim is denied.

      The Committee normally shall render a decision no later than 60 days
      following receipt of the request for review. The Participant may request a
      formal hearing before the Committee which the Committee may grant in its
      discretion. Under special circumstances which require an extension of time
      for rendering a decision (including but not limited to the need to hold a
      hearing), the decision may be delayed up to 120 days following receipt of
      the request for review. If such an extension is required, the Participant
      will be advised in writing before the extension begins.

      The Committee will provide written notice of its final determination. The
      notice will include specific reasons for the decision, be written in a
      manner calculated to be understood by the Participant and make specific
      reference to the Plan provisions on which it is based.

                                     Page 9

      An appeal will not be considered if it is not filed within the applicable
period of time. If a decision on an appeal is not provided within any applicable
time frame described above, the claim shall be deemed denied on appeal.

      At any stage in the appeals process, the applicant or his or her
designated representative may review pertinent documents, including copies of
the Plan document and information relating to the applicant's entitlement to
such benefit, and submit issues and comments in writing.

      8.9 Arbitration. Any dispute or claim arising out of this Plan or the
breach thereof shall be settled by arbitration in accordance with the rules of
the American Arbitration Association, to be conducted in Houston, Texas before
an arbitrator selected in accordance with such rules. Judgment upon the award
rendered by the Arbitrator may be entered in any court having jurisdiction
thereof.

      IN WITNESS WHEREOF, Oceaneering International, Inc. has caused this Plan
to be executed by its duly authorized officer, effective as provided herein.

                                    OCEANEERING INTERNATIONAL, INC.

                                    By:   //s//  MARVIN J. MIGURA
                                    Title:      Sr. Vice President
                                    Date: December 29, 1999

ATTEST:

By:    //s//  GEORGE R. HAUBENREICH, JR.
Title: Secretary

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