Document:

<PAGE>
                                                                    EXHIBIT 4.13

                                 FIRST AMENDMENT

         This First Amendment (this "First Amendment") dated as of January 7,
2003 is entered into by and among Cal Dive/Gunnison Business Trust No. 2001-1, a
Delaware business trust (the "Borrower"), Energy Resource Technology, Inc., a
Delaware corporation (the "Beneficiary"), Cal Dive International, Inc., a
Minnesota corporation (the "Parent Guarantor"), the Lenders party to the Amended
and Restated Credit Agreement referred to below, and Bank One, NA, a national
banking association having its principal office in Chicago, Illinois, as agent
for such Lenders. The parties hereto agree as follows:

         WHEREAS, the Borrower, the Beneficiary, the Parent Guarantor,
Wilmington Trust Company, a Delaware banking corporation, the Lenders party
thereto, and Bank One, NA, a national banking association having its principal
office in Chicago, Illinois, as agent for such Lenders, entered into that
certain Amended and Restated Credit Agreement dated as of July 26, 2002 (the
"Agreement"); and

         WHEREAS, the Borrower desires to issue preferred stock and in
connection therewith has requested certain amendments to the Agreement; and

         WHEREAS, as a result, the parties hereto desire to amend the Agreement
in certain respects as more fully described herein;

         NOW, THEREFORE, in consideration of the undertakings set forth herein
and other good and valuable consideration, the parties hereto hereby agree as
follows:

         SECTION 1. DEFINED TERMS. Capitalized terms used and not otherwise
defined in this First Amendment shall have the meanings attributed to them in
Article I of the Agreement.

         SECTION 2. AMENDMENT OF AGREEMENT. Upon the satisfaction of the
conditions precedent set forth in Section 4 of this First Amendment but
effective as of the date hereof, the Agreement shall be amended as follows:

                  (i) Article I of the Agreement is hereby amended by adding
         thereto between the definitions of "Appraiser" and "Approved Budget"
         the following new definition of "Fletcher Preferred Stock":

                           "'Approved Preferred Stock' means cumulative,
                  convertible preferred stock of the Parent Guarantor having an
                  aggregate liquidation preference of no more than $55,000,000."

                  (ii) The definition of "Fixed Charge Coverage Ratio" set forth
         in Article I of the Agreement is hereby amended by deleting it in its
         entirety and substituting in lieu thereof the following new definition
         of "Fixed Charge Coverage Ratio":

<PAGE>

                           "'Fixed Charge Coverage Ratio' means, with reference
                  to the periods referred to below, on a consolidated basis for
                  the Parent Guarantor and its Consolidated Subsidiaries, the
                  ratio of Income from Operations to Interest Expense plus
                  scheduled payments of principal plus the aggregate amount of
                  cash dividends declared or paid on any preferred stock of the
                  Parent Guarantor, for the three-month period ending March 31,
                  2002, the six-month period ending June 30, 2002, the
                  nine-month period ending September 30, 2002, and thereafter on
                  a rolling four-quarter basis, calculated as of the last day of
                  each such period; provided, however, that for the three-month
                  period being March 31, 2002 up to $3,000,000 of capitalized
                  interest for the MARAD Debt shall not be included in
                  calculating Interest Expense. For purposes of this definition,
                  the interest expense on the liabilities described in Section
                  1(l) of Schedule 6 shall be excluded."

                  (iii) The definition of "Interest Coverage Ratio" set forth in
         Article I of the Agreement is hereby amended by deleting it in its
         entirety and substituting in lieu thereof the following new definition
         of "Interest Coverage Ratio":

                           "'Interest Coverage Ratio' means, on any day, the
                  ratio of (a) EBIT to (b) Interest Expense plus the aggregate
                  amount of cash dividends declared or paid on any preferred
                  stock of the Parent Guarantor for the period of four
                  consecutive fiscal quarters of the Parent Guarantor ending on
                  the last day of the most recent fiscal quarter of the Parent
                  Guarantor. For purposes of this definition, the interest
                  expense on the liabilities described in Section 1(l) of
                  Schedule 6 shall be excluded."

                  (iv) Section 6.10 is hereby amended by deleting it in its
         entirety and substituting in lieu thereof the following new Section
         6.10:

                           "6.10. Dividends and Redemptions. The Parent
                  Guarantor will not, nor will it permit any of its Subsidiaries
                  to, declare or pay any dividends or make any distributions on
                  its capital stock or redeem, repurchase or otherwise acquire
                  or retire any of its capital stock at any time outstanding,
                  except the following:

                                    (a) any Subsidiary of the Parent Guarantor
                           may declare and pay dividends or make distributions
                           to the Parent Guarantor or to a Wholly-Owned
                           Subsidiary of the Parent Guarantor;

                                    (b) the Parent Guarantor may declare and pay
                           dividends on the Approved Preferred Stock by issuing
                           shares of its common stock;

                                    (c) the Parent Guarantor may redeem,
                           repurchase, acquire or retire shares of the Approved
                           Preferred Stock in exchange for shares of its common
                           stock; and

                                    (d) the Parent Guarantor may declare and pay
                           cash dividends on the Approved Preferred Stock
                           provided that (i) both the declaration and

                                     Page 2
<PAGE>

                           payment of any such dividend occur within the same
                           fiscal quarter of the Parent Guarantor, (ii) no
                           Default or Unmatured Default shall exist before or
                           after giving effect to any such declaration for
                           payment or be created as a result thereof, and (iii)
                           the aggregate amount of cash dividends declared on
                           the Approved Preferred Stock during any fiscal
                           quarter of the Parent Guarantor does not exceed the
                           maximum amount of cash dividends which could have
                           been declared paid on the Approved Preferred Stock
                           during the immediately preceding fiscal quarter of
                           the Parent Guarantor (calculated without taking into
                           account any of the cash dividends actually paid on
                           the Approved Preferred Stock during such fiscal
                           quarter) without violating either Section 11 or
                           Section 12 of Schedule 6."

                  (v) Section 6 of Schedule 6 is hereby amended by deleting it
         in its entirety and substituting in lieu thereof the following new
         Section 6:

                                    "Section 6. INTENTIONALLY DELETED."

                  (vi) Section 8 of Schedule 6 is hereby amended by deleting it
         in its entirety and substituting in lieu thereof the following new
         Section 8:

                           "Section 8. Agreements Restricting Liens and
                  Distributions. The Parent Guarantor will not, nor will it
                  permit any of its Subsidiaries to, enter into any agreement
                  which (a) except with respect to specific Cal Dive Property
                  encumbered to secure payment of Indebtedness related to such
                  Cal Dive Property which encumbrance and Indebtedness are
                  permitted under Section 1 and Section 2, respectively, of this
                  Schedule IV, imposes restrictions greater than those under the
                  Loan Documents upon the creation or assumption of any Lien
                  upon such Cal Dive Property, revenues or assets, whether now
                  owned or hereafter acquired, (b) limits the declaration or
                  payment of dividends or any other distribution on any of the
                  capital stock of, or any redemption, repurchase or other
                  acquisition or retirement of any of the capital stock of, any
                  of the Parent Guarantor's Subsidiaries, or (c) limits any loan
                  or advance by any of the Parent Guarantor's Subsidiaries to
                  the Parent Guarantor."

         SECTION 3. REPRESENTATIONS AND WARRANTIES. In order to induce the
Lenders to execute and deliver this First Amendment, each of the Borrower, the
Beneficiary, the Parent Guarantor, the Trustee and Wilmington Trust Company
hereby confirms, reaffirms and restates as of the date hereof its respective
representations and warranties set forth in Article V and/or Sections 5A.1 and
5A.3 of the Agreement provided that such representations and warranties shall be
and hereby are amended as follows: each reference therein to "this Agreement"
(including, without limitation, each such a reference included in the term "Loan
Documents" and all indirect references such as "hereby", "herein", "hereof" and
"hereunder") shall be deemed to be a collective reference to the Agreement, this
First Amendment and the Agreement as amended by this First Amendment. A Default
under and as defined in the Agreement as amended by this First Amendment shall
be deemed to have occurred if any representation or warranty made

                                     Page 3
<PAGE>

pursuant to the foregoing sentence of this Section 3 shall be materially false
as of the date on which made.

         SECTION 4. CONDITIONS PRECEDENT. This First Amendment and the waivers
and amendments provided for herein shall become effective as of the date hereof
on the date on which the Agent shall have (i) executed a counterpart of this
First Amendment, and (ii) received one or more counterparts of this First
Amendment executed by the Borrower, the Beneficiary, the Parent Guarantor,
Wilmington Trust Company and the Required Lenders.

         SECTION 5. EFFECT ON THE AGREEMENT. Except as expressly amended hereby,
all of the representations, warranties, terms, covenants and conditions of the
Agreement and the other Loan Documents (i) shall remain unaltered, (ii) shall
continue to be, and shall remain, in full force and effect in accordance with
their respective terms, and (iii) are hereby ratified and confirmed in all
respects. Upon the effectiveness of this First Amendment, all references in the
Agreement (including references in the Agreement as amended by this First
Amendment) to "this Agreement" (including, without limitation, each such a
reference included in the term "Loan Documents" and all indirect references such
as "hereby", "herein", "hereof" and "hereunder") shall be deemed to be a
collective reference to the Agreement as amended by this First Amendment.

         SECTION 6. CONFIRMATION GUARANTIES. Without limiting the provisions of
Section 5 of this First Amendment, (i) the Parent Guarantor hereby (a) confirms
and agrees that none of the terms of this First Amendment or any other agreement
or document executed in connection herewith or contemplated herein shall
release, discharge, or otherwise limit or affect in any manner any of its
obligations under the Parent Guaranty, (b) confirms and agrees that the term
"Credit Agreement" as used and defined in the Parent Guaranty shall mean and
include the Agreement as amended by this First Amendment, and (c) ratifies and
confirms the Parent Guaranty and all of its obligations thereunder, and (ii) the
Beneficiary hereby (a) confirms and agrees that none of the terms of this First
Amendment or any other agreement or document executed in connection herewith or
contemplated herein shall release, discharge, or otherwise limit or affect in
any manner any of its obligations under the Beneficiary Guaranty, (b) confirms
and agrees that the term "Credit Agreement" as used and defined in the
Beneficiary Guaranty shall mean and include the Agreement as amended by this
First Amendment, and (c) ratifies and confirms the Beneficiary Guaranty and all
of its obligations thereunder.

         SECTION 7. EXPENSES. The Borrower shall reimburse the Agent for any and
all reasonable costs, internal charges and out-of-pocket expenses (including
attorneys' fees and time charges of attorneys for the Agent, which attorneys may
be employees of the Agent) paid or incurred by the Agent in connection with the
preparation, review, execution and delivery of this First Amendment.

         SECTION 8. ENTIRE AGREEMENT. This First Amendment, the Agreement as
amended by this First Amendment and the other Loan Documents embody the entire
agreement and understanding between the parties hereto and supersede any and all
prior agreements and understandings between the parties hereto relating to the
subject matter hereof.

                                     Page 4
<PAGE>

         SECTION 9. HEADINGS. The headings, captions, and arrangements used in
this First Amendment are for convenience only and shall not affect the
interpretation of this First Amendment.

         SECTION 10. GOVERNING LAW. THIS FIRST AMENDMENT SHALL BE CONSTRUED IN
ACCORDANCE WITH THE INTERNAL LAWS (INCLUDING, WITHOUT LIMITATION, 735 ILCS
SECTION 105/5-1 ET SEQ, BUT OTHERWISE WITHOUT REGARD TO THE CONFLICT OF LAWS
PROVISIONS) OF THE STATE OF ILLINOIS, BUT GIVING EFFECT TO FEDERAL LAWS
APPLICABLE TO NATIONAL BANKS.

         SECTION 11. INSTRUCTIONS TO TRUSTEE. By signing this First Amendment,
the Beneficiary hereby (i) acting pursuant to Section 6.6 of the Trust
Agreement, authorizes and directs the Trustee to execute and deliver this First
Amendment, and (ii) confirms that all action taken by the Trustee in connection
with this authorization and direction is covered by the indemnification, fee and
expense reimbursement provisions set forth in Sections 5.2 and 5.3 of the Trust
Agreement.

         SECTION 12. LIMITATION OF LIABILITY OF OWNER TRUSTEE. It is expressly
understood and agreed by and among the parties hereto that, except as otherwise
expressly provided in Section 3 hereof or therein, this First Amendment is
executed by Wilmington Trust Company, not individually or personally but solely
as Trustee under the Trust Agreement in the exercise of the power and authority
conferred and vested in it as such Trustee, that each and all of the
representations, undertakings and agreements herein or therein made on the part
of the Trustee or the Borrower are intended not as personal representations,
undertakings and agreements by Wilmington Trust Company, or for the purpose or
with the intention of binding Wilmington Trust Company, personally, but are made
and intended for the purpose of binding only the Trust Estate, that nothing
herein contained shall be construed as creating any liability of Wilmington
Trust Company, or any incorporator or any past, present or future subscriber to
the capital stock of, or stockholder, officer or director of Wilmington Trust
Company, to perform any covenant either express or implied contained herein or
in the other Loan Documents to which the Trustee or the Borrower is a party, and
that so far as Wilmington Trust Company is concerned, any Person shall look
solely to the Trust Estate for the performance of any obligation hereunder or
thereunder or under any of the instruments referred to herein or therein;
provided, however, that nothing contained in this Section shall be construed to
limit in scope or substance the general corporate liability of Wilmington Trust
Company, expressly provided (i) to the Certificate Holders under the Trust
Agreement, (ii) in respect of those representations, warranties, agreements and
covenants of Wilmington Trust Company expressly set forth in Section 3 hereof,
or (iii) pursuant to the Trust Agreement, for the gross negligence or willful
misconduct of Wilmington Trust Company or to exercise the same degree of care
and skill as is customarily exercised by similar institutions in the receipt and
disbursement of moneys actually received by it in accordance with terms of the
Loan Documents under similar circumstances.

         SECTION 13. COUNTERPARTS. This First Amendment may be executed in any
number of counterparts, all of which taken together shall constitute one
agreement, and any of the parties hereto may execute this First Amendment by
signing any such counterpart.

                                     Page 5
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this First Amendment
to be duly executed as of the date first above written.

                                       CAL DIVE/GUNNISON BUSINESS TRUST
                                       No. 2001-1

                                       By:  Wilmington Trust Company, not in its
                                            individual capacity, but solely as
                                            trustee of Cal Dive/Gunnison
                                            Business Trust No. 2001-1

                                            By:
                                               ---------------------------------

                                            Title:
                                                  ------------------------------

                                       WILMINGTON TRUST COMPANY,
                                       in its individual capacity to the extent
                                       expressly provided herein

                                       By:
                                          --------------------------------------

                                       Title:
                                             -----------------------------------

                                       ENERGY RESOURCE TECHNOLOGY, INC.

                                       By:
                                          --------------------------------------

                                       Title:
                                             -----------------------------------

                                       CAL DIVE INTERNATIONAL, INC.

                                       By:
                                          --------------------------------------

                                       Title:
                                             -----------------------------------

                                       BANK ONE, NA,
                                       Individually and as Agent

                                       By:
                                          --------------------------------------

                                       Title:
                                             -----------------------------------

                                     Page 6<PAGE>
                                                                    Exhibit 4.14
                                SECOND AMENDMENT

         This Second Amendment (this "Second Amendment") dated as of February
14, 2003 is entered into by and among Cal Dive/Gunnison Business Trust No.
2001-1, a Delaware business trust (the "Borrower"), Energy Resources Technology,
Inc., a Delaware corporation (the "Beneficiary"), Cal Dive International, Inc.,
a Minnesota corporation (the "Parent Guarantor"), the Lenders party to the
Amended and Restated Credit Agreement referred to below, and Bank One, NA, a
national banking association having its principal office in Chicago, Illinois,
as agent for such Lenders (in such capacity, the "Agent"). The parties hereto
agree as follows:

         WHEREAS, the Borrower, the Beneficiary, the Parent Guarantor,
Wilmington Trust Company, a Delaware banking corporation, the Lenders party
thereto, and the Agent entered into that certain Amended and Restated Credit
Agreement dated as of July 26, 2002 (the "Original Agreement"); and

         WHEREAS, the Original Agreement was amended pursuant to that certain
First Amendment dated as of January 7, 2003 among the Borrower, the Beneficiary,
the Parent Guarantor, Wilmington Trust Company, a Delaware banking corporation,
the Lenders party thereto, and the Agent (the "First Amendment"); and

         WHEREAS, the Borrower has requested certain amendments to the Original
Agreement as amended by the First Amendment (the original Agreement as amended
by the First Amendment is hereinafter referred to as the "Agreement") and the
parties hereto are willing to agree to such amendments in accordance with the
terms of this First Amendment;

         NOW, THEREFORE, in consideration of the undertakings set forth herein
and other good and valuable consideration, the parties hereto hereby agree as
follows:

         SECTION 1. DEFINED TERMS. Capitalized terms used and not otherwise
defined in this Second Amendment shall have the meanings attributed to them in
Article I of the Agreement.

         SECTION 2. AMENDMENT OF AGREEMENT. Upon the satisfaction of the
conditions precedent set forth in Section 4 of this Second Amendment but
effective as of the date hereof, the Agreement shall be amended as follows:

                 (i) The definition of "EBIT" set forth in Article I of the
         Agreement is hereby amended by deleting it in its entirety and
         substituting in lieu thereof the following new definition of "EBIT":

                           "'EBIT' means for any period, on a consolidated
                  basis, for the Parent Guarantor and its Consolidated
                  Subsidiaries, the sum of the amounts for such period, without
                  duplication of: (i) Net Income, plus (ii) charges against
                  income for foreign, federal, state and local taxes, to the
                  extent deducted in computing Net Income, plus (iii) Interest
                  Expense, plus (iv) extraordinary or non-recurring non-

<PAGE>

                  cash losses to the extent deducted in computing Net Income,
                  minus (v) extraordinary or non-recurring non-cash gains to the
                  extent included in computing Net Income; provided, however,
                  that (A) EBIT shall not include the Deepwater Clawback
                  Obligations, and (B) a one-time charge in the fourth quarter
                  of 2002 in an amount not to exceed USD 5,200,000 arising out
                  of the settlement of a lawsuit brought by EEX, Inc. against
                  Cal Dive may be excluded from the determination of EBIT."

                  (ii) The definition of "EBITDA" set forth in Article I of the
         Agreement is hereby amended by deleting it in its entirety and
         substituting in lieu thereof the following new definition of "EBITDA":

                           "'EBITDA' means, for any period, on a consolidated
                  basis, for the Parent Guarantor and its Consolidated
                  Subsidiaries, the sum of the amounts for such period, without
                  duplication of (i) Net Income, plus (ii) charges against
                  income for foreign, federal, state and local taxes, to the
                  extent deducted in computing Net Income, plus (iii) Interest
                  Expense, plus (iv) depreciation expense, to the extent
                  deducted in computing Net Income, plus (v) amortization
                  expense, including without limitation amortization of
                  goodwill, other intangible assets and transaction expenses, to
                  the extent deducted in computing Net Income, plus (vi)
                  extraordinary or non-recurring non-cash losses to the extent
                  deducted in computing Net Income, minus (vii) extraordinary or
                  non-recurring non-cash gains to the extent included in
                  computing Net Income; provided, however, that (A) EBITDA shall
                  not include the Deepwater Clawback Obligations, and (B) a
                  one-time charge in the fourth quarter of 2002 in an amount not
                  to exceed USD 5,200,000 arising out of the settlement of a
                  lawsuit brought by EEX, Inc. against Cal Dive may be excluded
                  from the determination of EBITDA."

         SECTION 3. REPRESENTATIONS AND WARRANTIES. In order to induce the
Lenders to execute and deliver this Second Amendment, each of the Borrower, the
Beneficiary, the Parent Guarantor, the Trustee and Wilmington Trust Company
hereby confirms, reaffirms and restates as of the date hereof its respective
representations and warranties set forth in Article V and/or Sections 5A.1 and
5A.3 of the Agreement provided that such representations and warranties shall be
and hereby are amended as follows: each reference therein to "this Agreement"
(including, without limitation, each such a reference included in the term "Loan
Documents" and all indirect references such as "hereby", "herein", "hereof" and
"hereunder") shall be deemed to be a collective reference to the Agreement, this
Second Amendment and the Agreement as amended by this Second Amendment. A
Default under and as defined in the Agreement as amended by this Second
Amendment shall be deemed to have occurred if any representation or warranty
made pursuant to the foregoing sentence of this Section 3 shall be materially
false as of the date on which made.

         SECTION 4. CONDITIONS PRECEDENT. This Second Amendment and the waivers
and amendments provided for herein shall become effective as of the date hereof
on the date on which the Agent shall have (i) executed a counterpart of this
Second Amendment, and (ii)

                                     Page 2
<PAGE>

received one or more counterparts of this Second Amendment executed by the
Borrower, the Beneficiary, the Parent Guarantor, Wilmington Trust Company and
the Required Lenders.

         SECTION 5. EFFECT ON THE AGREEMENT. Except as expressly amended hereby,
all of the representations, warranties, terms, covenants and conditions of the
Agreement and the other Loan Documents (i) shall remain unaltered, (ii) shall
continue to be, and shall remain, in full force and effect in accordance with
their respective terms, and (iii) are hereby ratified and confirmed in all
respects. Upon the effectiveness of this Second Amendment, all references in the
Agreement (including references in the Agreement as amended by this Second
Amendment) to "this Agreement" (including, without limitation, each such a
reference included in the term "Loan Documents" and all indirect references such
as "hereby", "herein", "hereof" and "hereunder") shall be deemed to be a
collective reference to the Agreement as amended by this Second Amendment.

         SECTION 6. CONFIRMATION GUARANTIES. Without limiting the provisions of
Section 5 of this Second Amendment, (i) the Parent Guarantor hereby (a) confirms
and agrees that none of the terms of this Second Amendment or any other
agreement or document executed in connection herewith or contemplated herein
shall release, discharge, or otherwise limit or affect in any manner any of its
obligations under the Parent Guaranty, (b) confirms and agrees that the term
"Credit Agreement" as used and defined in the Parent Guaranty shall mean and
include the Agreement as amended by this Second Amendment, and (c) ratifies and
confirms the Parent Guaranty and all of its obligations thereunder, and (ii) the
Beneficiary hereby (a) confirms and agrees that none of the terms of this Second
Amendment or any other agreement or document executed in connection herewith or
contemplated herein shall release, discharge, or otherwise limit or affect in
any manner any of its obligations under the Beneficiary Guaranty, (b) confirms
and agrees that the term "Credit Agreement" as used and defined in the
Beneficiary Guaranty shall mean and include the Agreement as amended by this
Second Amendment, and (c) ratifies and confirms the Beneficiary Guaranty and all
of its obligations thereunder.

         SECTION 7. EXPENSES. The Borrower shall reimburse the Agent for any and
all reasonable costs, internal charges and out-of-pocket expenses (including
attorneys' fees and time charges of attorneys for the Agent, which attorneys may
be employees of the Agent) paid or incurred by the Agent in connection with the
preparation, review, execution and delivery of this Second Amendment.

         SECTION 8. ENTIRE AGREEMENT. This Second Amendment, the Agreement as
amended by this Second Amendment and the other Loan Documents embody the entire
agreement and understanding between the parties hereto and supersede any and all
prior agreements and understandings between the parties hereto relating to the
subject matter hereof.

         SECTION 9. HEADINGS. The headings, captions, and arrangements used in
this Second Amendment are for convenience only and shall not affect the
interpretation of this Second Amendment.

                                     Page 3

<PAGE>

         SECTION 10. GOVERNING LAW. THIS SECOND AMENDMENT SHALL BE CONSTRUED IN
ACCORDANCE WITH THE INTERNAL LAWS (INCLUDING, WITHOUT LIMITATION, 735 ILCS
SECTION 105/5-1 ET SEQ, BUT OTHERWISE WITHOUT REGARD TO THE CONFLICT OF LAWS
PROVISIONS) OF THE STATE OF ILLINOIS, BUT GIVING EFFECT TO FEDERAL LAWS
APPLICABLE TO NATIONAL BANKS.

         SECTION 11. INSTRUCTIONS TO TRUSTEE. By signing this Second Amendment,
the Beneficiary hereby (i) acting pursuant to Section 6.6 of the Trust
Agreement, authorizes and directs the Trustee to execute and deliver this Second
Amendment, and (ii) confirms that all action taken by the Trustee in connection
with this authorization and direction is covered by the indemnification, fee and
expense reimbursement provisions set forth in Sections 5.2 and 5.3 of the Trust
Agreement.

         SECTION 12. LIMITATION OF LIABILITY OF OWNER TRUSTEE. It is expressly
understood and agreed by and among the parties hereto that, except as otherwise
expressly provided in Section 3 hereof or therein, this Second Amendment is
executed by Wilmington Trust Company, not individually or personally but solely
as Trustee under the Trust Agreement in the exercise of the power and authority
conferred and vested in it as such Trustee, that each and all of the
representations, undertakings and agreements herein or therein made on the part
of the Trustee or the Borrower are intended not as personal representations,
undertakings and agreements by Wilmington Trust Company, or for the purpose or
with the intention of binding Wilmington Trust Company, personally, but are made
and intended for the purpose of binding only the Trust Estate, that nothing
herein contained shall be construed as creating any liability of Wilmington
Trust Company, or any incorporator or any past, present or future subscriber to
the capital stock of, or stockholder, officer or director of Wilmington Trust
Company, to perform any covenant either express or implied contained herein or
in the other Loan Documents to which the Trustee or the Borrower is a party, and
that so far as Wilmington Trust Company is concerned, any Person shall look
solely to the Trust Estate for the performance of any obligation hereunder or
thereunder or under any of the instruments referred to herein or therein;
provided, however, that nothing contained in this Section shall be construed to
limit in scope or substance the general corporate liability of Wilmington Trust
Company, expressly provided (i) to the Certificate Holders under the Trust
Agreement, (ii) in respect of those representations, warranties, agreements and
covenants of Wilmington Trust Company expressly set forth in Section 3 hereof,
or (iii) pursuant to the Trust Agreement, for the gross negligence or willful
misconduct of Wilmington Trust Company or to exercise the same degree of care
and skill as is customarily exercised by similar institutions in the receipt and
disbursement of moneys actually received by it in accordance with terms of the
Loan Documents under similar circumstances.

         SECTION 13. COUNTERPARTS. This Second Amendment may be executed in any
number of counterparts, all of which taken together shall constitute one
agreement, and any of the parties hereto may execute this Second Amendment by
signing any such counterpart.

                                     Page 4

<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Second
Amendment to be duly executed as of the date first above written.

                          CAL DIVE/GUNNISON BUSINESS TRUST
                          No. 2001-1

                          By: Wilmington Trust Company, not in its
                              individual capacity, but solely as trustee of Cal
                              Dive/Gunnison Business Trust No. 2001-1

                              By:
                                 -------------------------------------------

                              Title:
                                    ----------------------------------------

                          WILMINGTON TRUST COMPANY,
                          in its individual capacity to the extent
                          expressly provided herein

                          By:
                             ----------------------------------------------

                          Title:
                                -------------------------------------------

                          ENERGY RESOURCE TECHNOLOGY, INC.

                          By:
                             ----------------------------------------------

                          Title:
                                -------------------------------------------

                          CAL DIVE INTERNATIONAL, INC.

                          By:
                             -----------------------------------------------

                          Title:
                                --------------------------------------------

                          BANK ONE, NA,
                          Individually and as Agent

                          By:
                             ----------------------------------------------

                          Title:
                                -------------------------------------------

                                     Page 5

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00049-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00049-of-00352.parquet"}]]