EXHIBIT 99.1

                   Commitment And Authorization
      For The Exercise of Global Marine Inc. Stock Options
                    And Sale Of Option Stock

TO:  The Corporate Secretary
     Global Marine Inc.
     P. O. Box 4577
     Houston, Texas 77210-4577

The undersigned, an executive officer and director of Global Marine
Inc. (the "Company"), hereby commits to sell from time to time, as
outlined below, shares of common stock, par value $.10 per share
("Common Stock"), of the Company that the undersigned has or at the
time of sale will have the right to acquire under outstanding stock
options ("Stock Options") issued by the Company.

  1.  PURPOSE.  The undersigned is entering into this commitment
and authorization ("Commitment") to effect transactions as outlined
below for the purpose of assuring that all transactions pursuant to
the Commitment will not be influenced by, or made on the basis of,
material nonpublic information concerning the Company or its
securities that may be in the possession of the undersigned at the
time the transactions occur.

  2.  NATURE OF AND AUTHORIZATION TO EFFECT TRANSACTIONS.  On
each date determined in accordance with Item 3 below, the
undersigned, through his attorneys-in-fact, or either of them,
designated in Item 4 below, will engage in a broker-assisted
cashless exercise of the number of outstanding Stock Options
indicated in Item 3 below, pursuant to which the brokerage firm of
Harris InvestorLine, Inc. (or another firm designated by the
undersigned in advance of the date of exercise) will sell the
shares underlying the Stock Options on the date of exercise and
remit to the undersigned the net proceeds remaining after remitting
to the Company an amount equal to the aggregate exercise price of
the Stock Options and applicable withholding and employment taxes.
Said attorneys-in-fact and each of them are hereby authorized,
instructed and directed, without any further authorization,
instruction or direction from the undersigned, to take any and all
such actions as, and in such manner as, they or either of them may
in the exercise of their discretion deem necessary or advisable to
effect the transactions contemplated in this Commitment.  If both
of said attorneys-in-fact are unable or unwilling to take any
action deemed by either of them or by the undersigned to be
necessary or advisable to effect any transaction or transactions
contemplated by this Commitment, the undersigned may take such
action personally.

  3.  DATE AND AMOUNT OF EACH TRANSACTION.  Exercises of Stock
Options and sales of the underlying shares of Common Stock subject
to this Commitment will occur as follows:

    (a)  as soon as practicable upon the per share market price of
  the Common Stock having reached $36 or above, exercise 7,900 of
  the undersigned's incentive Stock Options with a $25.3125
  exercise price and 92,100 of the undersigned's non-qualified
  Stock Options with a $25.3125 exercise price, and sell the
  underlying shares of Common Stock at a price of not less than
  $36 per share;
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    (b)  as soon as practicable upon the per share market price of
  the Common Stock having reached $38 or above, exercise 3,950 of
  the undersigned's incentive Stock Options with a $25.3125
  exercise price, 89,475 of the undersigned's non-qualified Stock
  Options with a $25.3125 exercise price, 2 of the undersigned's
  incentive Stock Options with a $7.6875 exercise price, and 6,573
  of the undersigned's non-qualified Stock Options with a $7.6875
  exercise price, and sell the underlying shares of Common Stock
  at a price of not less than $38 per share;

    (c)  as soon as practicable upon the per share market price of
  the Common Stock having reached $40 or above, exercise 2 of the
  undersigned's incentive Stock Options with a $7.6875 exercise
  price and 99,998 of the undersigned's non-qualified Stock
  Options with a $7.6875 exercise price, and sell the underlying
  shares of Common Stock at a price of not less than $40 per
  share; and

    (d)  as soon as practicable upon the per share market price of
  the Common Stock having reached $42 or above, exercise 75,000 of
  the undersigned's non-qualified Stock Options with a $19.4063
  exercise price and 80,925 of the undersigned's non-qualified
  Stock Options with a $7.6875 exercise price, and sell the
  underlying shares of Common Stock at a price of not less than
  $42 per share;

provided, however, that no Stock Option shall be subject to any
transaction set forth above until the earliest time when both (i) the
Stock Option is vested and (ii) the per share market price of the
Common Stock is at or above the market price indicated above for said
transaction.  If the full number of Stock Options indicated above for
a particular transaction cannot be exercised because all of them have
not yet vested, the number that have vested shall be exercised and
the remaining Stock Options indicated for that transaction shall be
exercised later, at the earliest time when both conditions stated in
(i) and (ii) above have been satisfied.

  4.  POWER OF ATTORNEY.  The undersigned hereby constitutes and
appoints the Company's Corporate Secretary and its Stock Plan
Administrator, and each of them, his true and lawful attorneys-in-
fact and agents with full power of substitution and resubstitution
for him and in his name, place and stead, in any and all
capacities, to sign and deliver any or all such notices,
authorizations and other forms, documents and papers as either of
said attorneys-in-fact may in his or her sole discretion deem
necessary or advisable to effect the transactions contemplated in
this Commitment, granting unto said attorneys-in-fact and agents
and each of them full power and authority to do and perform each
and every act and thing requisite or necessary to be done in and
about the premises, to all intents and purposes as fully as the
undersigned might or could do himself, hereby ratifying and
confirming all that said attorneys-in-fact and agents or their
substitutes may lawfully do or cause to be done by virtue hereof.

  5.  REPRESENTATIONS AND WARRANTIES.  The undersigned
represents and warrants that he  (a) is not aware of material
nonpublic information with respect to the Company or any securities
of the Company (including the Common Stock); (b) is not subject to
any legal, regulatory or contractual restriction or undertaking
that would prevent transactions from being effected in accordance
with this Commitment; (c) is entering into this Commitment in good
faith and not as part of a plan or scheme to evade the prohibitions
of Rule 10b5-1 under the U.S. Securities Exchange Act of 1934 (the
"Exchange Act");  (d) is currently able to sell shares of Common
Stock in accordance with the Company's insider trading policies;
and  (e) has obtained the approval of the Company's counsel to
enter into this
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Commitment.  The undersigned will immediately notify the
Company's Corporate Secretary and its Stock Plan
Administrator if he becomes subject to a legal, regulatory or
contractual restriction or undertaking that would prevent
transactions from being effected pursuant to this Commitment, and,
in such a case, the undersigned will amend or otherwise revise this
Commitment to take account of such legal, regulatory or contractual
restriction or undertaking, provided that he will not be obligated
to take any action that would be inconsistent with the requirements
of Rule 10b5-1(c).

  6.  RESPONSIBILITY FOR FILINGS.  The undersigned will remain
responsible for making all filings, if any, required under Section
16 of the Exchange Act and Rule 144 under the U.S. Securities Act
of 1933.

  7.  PERIOD OF COMMITMENT.  This Commitment will become
effective immediately upon its execution.  It is the undersigned's
intent that this Commitment remain in effect until the earliest of
(i) the undersigned's termination of all of his positions as a
director and/or officer of the Company, or (ii) all transactions
contemplated in Item 3 above having been completed.

  8. INTENT AND INTERPRETATION.  It is the intent of the
undersigned that this Commitment comply with the requirements of
Rule 10b5-1(c)(1)(i)(B) under the Exchange Act and that this
Commitment be interpreted to comply with the requirements of Rule
10b5-1(c).

  IN WITNESS WHEREOF, the undersigned has executed this
Commitment this 6th  day of February 2001.


                                  s / Robert E. Rose
                                 Robert E. Rose
                                 Chairman, President and CEO
                                 Global Marine Inc.