Document:

<PAGE>   1

                                                                   EXHIBIT 10.19

===============================================================================

                          PURCHASE AND SALE AGREEMENT

                                    BETWEEN

                          LEVIATHAN DEEPWATER, L.L.C.

                                   AS SELLER

                                      AND

                       ANR WESTERN GULF HOLDINGS, L.L.C.

                                    AS BUYER

                         DATED AS OF SEPTEMBER 30, 1999

===============================================================================

<PAGE>   2

                          PURCHASE AND SALE AGREEMENT

                               TABLE OF CONTENTS
<TABLE>

<S>                                                                                                              <C>
ARTICLE I  DEFINITIONS............................................................................................1
   1.1   Definitions..............................................................................................1
   1.2   Terminology..............................................................................................3

ARTICLE II PURCHASE AND SALE......................................................................................4
   2.1   The Transactions.........................................................................................4
   2.2   Closing..................................................................................................4
   2.3   Actions at Closing.......................................................................................4

ARTICLE III   REPRESENTATIONS AND WARRANTIES OF SELLER............................................................4
   3.1   Organization and Good Standing...........................................................................4
   3.2   Authority of Seller......................................................................................4
   3.3   No Violations............................................................................................5
   3.4   Title to Purchased Interest..............................................................................5
   3.5   Governmental and Third Party Approvals...................................................................5

ARTICLE IV REPRESENTATIONS AND WARRANTIES OF BUYER................................................................6
   4.1   Organization and Good Standing...........................................................................6
   4.2   Authority of Buyer.......................................................................................6
   4.3   No Violations............................................................................................6
   4.4   Acquisition as Investment................................................................................6
   4.5   Brokerage or Finders Fees................................................................................7

ARTICLE V  ADDITIONAL AGREEMENTS AND COVENANTS....................................................................7
   5.1   Covenants of Seller......................................................................................7
   5.2   Covenants of Buyer.......................................................................................7
   5.3   Mutual Covenants.........................................................................................7

ARTICLE VI CONDITIONS TO CLOSING..................................................................................8
   6.1   Buyer's Obligation to Close..............................................................................8
   6.2   Seller's Obligation to Close.............................................................................9

ARTICLE VII  INDEMNIFICATION.....................................................................................10
   7.1   Indemnification of Buyer................................................................................10
   7.2   Indemnification of Seller...............................................................................11
   7.3   Indemnification Procedures..............................................................................11
   7.4   Negligence..............................................................................................13
   7.5   Limitation on Liabilities...............................................................................13
   7.6   Survival................................................................................................13

ARTICLE VIII  TERMINATION RIGHTS.................................................................................14
   8.1   Termination.............................................................................................14
   8.2   Effect of Termination...................................................................................14

ARTICLE IX ARBITRATION...........................................................................................14
   9.1   Arbitration.............................................................................................14
</TABLE>

                                       i

<PAGE>   3
<TABLE>

<S>                                                                                                             <C>
ARTICLE X  GENERAL...............................................................................................16
   10.1  Exclusive Agreement.....................................................................................16
   10.2  Successors and Assigns..................................................................................16
   10.3  Amendments..............................................................................................16
   10.4  Further Assurances......................................................................................16
   10.5  Notices.................................................................................................17
   10.6  Governing Law...........................................................................................17
   10.7  Severability............................................................................................17
   10.8  Counterparts............................................................................................17
   10.9  Expenses................................................................................................17
</TABLE>

Exhibits to Purchase and Sale Agreement:

         Exhibit A         Form of Assignment

                                       ii

<PAGE>   4

                          PURCHASE AND SALE AGREEMENT

         THIS PURCHASE AND SALE AGREEMENT is made and entered into as of the
30th day of September, 1999 between Leviathan Deepwater, L.L.C., a Delaware
limited liability company ("Seller") and ANR Western Gulf Holdings, L.L.C., a
Delaware limited liability company ("Buyer").

         WHEREAS, Seller owns a 59.66% membership interest in Deepwater
Holdings, L.L.C., a Delaware limited liability company ("Holdings"), and Buyer
(together with its affiliates) owns a 40.34% membership interest in Holdings;

         WHEREAS, Seller desires to sell to Buyer and Buyer desires to purchase
from Seller a 9.66% membership interest in Holdings (the "Purchased Interest"),
subject to and in accordance with the terms of this Agreement;

         NOW, THEREFORE, in consideration of the mutual promises made herein
and other good and valuable consideration, the receipt and sufficiency of which
are hereby acknowledged, and subject to the conditions hereinafter set forth,
the Parties hereto agree as follows:

                                   ARTICLE I
                                  DEFINITIONS

         1.1 Definitions. The terms set forth below shall have the meanings
ascribed to them in this Article I or in the part of this Agreement referred to
below:

         Affiliate: with respect to an entity, any other entity controlling,
controlled by or under common control with such entity. As used in this
definition, the term "control," including the correlative terms "controlling,"
"controlled by" and "under common control with" shall mean the possession,
direct or indirect, of the power to direct or cause the direction of the
management or policies of an entity, whether through ownership of voting
securities, by contract or otherwise.

         Agreement: this Purchase and Sale Agreement, as amended, restated,
supplemented, or otherwise modified from time to time.

         Business Day: any day other than a Saturday, a Sunday or a day on
which banks in Houston, Texas are authorized or required by law to be closed.

         Buyer: as defined in the preamble.

         Buyer Indemnified Party: as defined in Section 7.1.

         Claim: any demand, claim, action, investigation, cause of action,
legal proceeding or arbitration, whether or not ultimately determined to be
valid.

                                       1

<PAGE>   5

         Claim Notice: as defined in Section 7.3.1.

         Closing: as defined in Section 2.2.

         Closing Date: as defined in Section 2.2.

         Code: the Internal Revenue Code of 1986, as amended.

         Election Period: as defined in Section 7.3.1.

         Encumbrance: any lien, pledge, condemnation proceeding, claim,
restriction, security interest, mortgage, preferential right, option, defect in
title or similar encumbrance.

         Environmental Laws: any and all federal, state and local laws,
statutes, regulations, rules, orders, ordinances or permits of any governmental
authority pertaining to health, the environment, wildlife or natural resources
in effect in any and all jurisdictions in which the assets of Stingray or WCDC
are located, including, without limitation, the Clean Air Act, as amended, and
the Federal Water Pollution Control Act, as amended, the Rivers and Harbors Act
of 1899, as amended, the Safe Drinking Water Act, as amended, the Comprehensive
Environmental Response, Compensation and Liability Act, as amended, the
Superfund Amendments and Reauthorization Act of 1986, as amended, the Resource
Conservation and Recovery Act, as amended, the Hazardous and Solid Waste
Amendments Act of 1984, as amended, the Toxic Substances Control Act, as
amended, the Occupational Safety and Health Act, as amended, the Oil Pollution
Act, as amended, the Pipeline Safety Act, as amended, the Natural Gas Pipeline
Safety Act, as amended, the Hazardous Liquid Pipeline Safety Act, as amended,
and the Hazardous Materials Transportation Act, as amended.

         Governmental Authority: any court, governmental department,
commission, council, board, agency or other instrumentality of the United
States of America or any state, county, municipality or local government.

         LLC Agreement: the limited liability company agreement of Holdings, as
amended, restated, supplemented or otherwise modified to the date hereof.

         Holdings: as defined in the preamble.

         HSR Act: the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as
amended.

         Indemnified Party: as defined in Section 7.3.1.

         Indemnifying Party: as defined in Section 7.3.1.

         Indemnity Notice: as defined in Section 7.3.4.

         Legal Requirement: all applicable laws, rules, regulations, codes,
ordinances, permits, bylaws, variances, orders, conditions, and licenses of a
Governmental Authority.

                                       2

<PAGE>   6

         Loss: any loss, damage, cost, liability or expense (including
reasonable costs of defense and investigations, settlements, and reasonable
attorneys' and experts' fees) or penalties or fines.

         Membership Interest: as defined in the LLC Agreement.

         Notices: as defined in Section 10.5.

         Parties: Seller and Buyer.

         Party: Seller or Buyer.

         Person: an individual, partnership, corporation, limited liability
company, business trust, joint stock company, trust, unincorporated
association, joint venture, Governmental Authority or other entity of whatever
nature.

         Purchased Interest: as defined in the preamble.

         Purchase Price: as defined in Section 2.1.

         Reasonable Efforts: the efforts that a prudent person or entity
desirous of achieving a result would use in similar circumstances to ensure
that such result is achieved expeditiously; provided, however, that an
obligation to use Reasonable Efforts under this Agreement does not require the
person or entity subject to that obligation to take actions that would incur
any unreasonable out-of-pocket cost or expense in connection therewith.

         Seller: as defined in the preamble.

         Seller Indemnified Parties: as defined in Section 7.2.

         Taxes: all federal, state, local or foreign taxes, assessments or
other Governmental Authority charges, excluding income taxes, together with any
interest or penalties and other assessments thereon or related thereto.

         Third Party Claim: as defined in Section 7.3.1.

         1.2 Terminology. All article, section, subsection, schedule and
exhibit references used in this Agreement are to this Agreement unless
otherwise specified. All schedules and exhibits attached to this Agreement
constitute a part of this Agreement and are incorporated herein. Unless the
context of this Agreement clearly requires otherwise (a) the singular shall
include the plural and the plural shall include the singular wherever and as
often as may be appropriate, (b) the words "includes" or "including" shall mean
"including without limitation," and (c) the words "hereof," "herein,"
"hereunder," and similar terms in this Agreement shall refer to this Agreement
as a whole and not any particular section or article in which such words
appear. Currency amounts referenced herein are in United States Dollars.
References to

                                       3
<PAGE>   7

"generally accepted accounting principles" herein shall refer to such
principles in effect in the United States of America as of the date of the
statement to which such phrase refers.

                                   ARTICLE II
                               PURCHASE AND SALE

         2.1 The Transactions. Subject to and in accordance with the terms and
conditions of this Agreement, Seller agrees to sell, assign, convey and
transfer to Buyer, and Buyer agrees to purchase and accept from Seller, at the
Closing the Purchased Interest for an aggregate amount equal to $26,122,000
(the "Purchase Price").

         2.2 Closing. The closing of the transactions contemplated by this
Agreement (the "Closing") shall take place at the offices of Akin, Gump,
Strauss, Hauer & Feld, L.L.P., 1900 Pennzoil Place, South Tower, 711 Louisiana
Street, Houston, Texas 77002 commencing at 10:00 a.m., local time, on (i)
September 30, 1999, unless the conditions set forth in Sections 6.1 and 6.2
have not been fulfilled or waived by the applicable Party or (ii) such other
date as the Parties shall agree in writing. The date on which the Closing
actually occurs is referred to herein as the "Closing Date."

         2.3 Actions at Closing. At the Closing the following shall occur:

                  2.3.1 Seller will deliver Membership Interest certificates
         representing all of the Purchased Interest endorsed in blank and/or
         duly executed assignments of Membership Interest (in the form set
         forth in Exhibit "A") to Buyer, and

                  2.3.2 Buyer shall pay, or cause to be paid, to Seller an
         amount equal to the Purchase Price as set forth in Section 2.1. The
         amount payable by Buyer to Seller shall be payable by Buyer by wire
         transfer or delivery of other immediately available funds pursuant to
         Seller's instructions.

                                  ARTICLE III
                    REPRESENTATIONS AND WARRANTIES OF SELLER

         Seller hereby represents and warrants to Buyer that:

         3.1 Organization and Good Standing. Seller is a limited liability
company duly formed, validly existing and in good standing under the laws of
the State of Delaware. Seller is qualified to do business as a foreign
corporation in all other jurisdictions where failure to be so qualified would
have an adverse effect on the transactions contemplated hereby.

         3.2 Authority of Seller. Seller has all requisite limited liability
company power and authority to enter into this Agreement and the other
agreements contemplated herein to which it is a party, to consummate the
transactions contemplated hereby and to perform all the terms and conditions
hereof and thereof to be performed by it. The execution, delivery and
performance of

                                       4
<PAGE>   8

this Agreement and the other agreements contemplated herein by Seller and the
transactions contemplated hereby to be consummated by Seller have been duly
authorized by all requisite limited liability company action by Seller. This
Agreement and the other agreements contemplated herein have been duly executed
and delivered by Seller and constitute a valid and binding agreement of Seller
enforceable against it in accordance with its terms subject to applicable
bankruptcy, insolvency and other similar laws relating to or affecting the
enforcement of creditors' rights generally and to general principles of equity
(regardless of whether enforcement is considered in a proceeding in equity or
at law).

         3.3 No Violations. The execution and delivery of this Agreement by
Seller and the consummation of the transactions and agreements contemplated
herein to be consummated by Seller do not and will not:

                  3.3.1 violate any provision of its certificate of formation,
         limited liability company agreement, or any equivalent governing
         instruments of Seller, or the LLC Agreement;

                  3.3.2 violate any provision of or require any filing,
         consent, authorization or approval under any Legal Requirement binding
         upon Seller;

                  3.3.3 result in a breach of, constitute a default under, or
         require any consent, authorization or approval under (i) any mortgage,
         indenture, loan or credit agreement or any other agreement or
         instrument evidencing indebtedness for money borrowed, or any
         financing lease to which Seller is a party or by which it is bound or
         to which any of its assets is subject, or (ii) in any material
         respect, any other agreement or instrument to which either Seller is a
         party or by which it is bound or to which any of its assets is
         subject; or

                  3.3.4 result in the creation or imposition of any Encumbrance
         on any asset of Holdings.

         3.4 Title to Purchased Interest. Seller owns beneficially and of
record the Purchased Interest, free and clear of all Encumbrances. Seller has
full legal right to sell, assign and transfer the Purchased Interest to Buyer
and will, upon delivery of the assignment of Membership Interest in the form of
Exhibit "A", as well as the delivery of any appropriate certificates
representing the Purchased Interest to Buyer pursuant to the terms hereof,
transfer to Buyer good and valid title to the Purchased Interest free and clear
of any and all Encumbrances.

         3.5 Governmental and Third Party Approvals. No consent, approval,
waiver, order or authorization of, or registration, declaration or filing with,
any Governmental Authority or any other third party is required to be obtained
or made in connection with the execution and delivery of this Agreement by
Seller or the consummation by Seller of the transactions contemplated herein.

                                       5

<PAGE>   9

                                   ARTICLE IV
                    REPRESENTATIONS AND WARRANTIES OF BUYER

         Buyer hereby represents and warrants to Seller:

         4.1 Organization and Good Standing. Buyer is a Delaware limited
liability company duly formed, validly existing and in good standing under the
laws of the State of Delaware. Buyer is qualified to do business as a foreign
entity in all other jurisdictions where the properties now owned or leased by
Buyer or the nature of the business now conducted by it requires it to be so
qualified.

         4.2 Authority of Buyer. Buyer has all requisite limited liability
company power and authority to enter into this Agreement and the other
agreements contemplated herein to which it is a party, to consummate the
transactions contemplated hereby and to perform all the terms and conditions
hereof and thereof to be performed by it. The execution, delivery and
performance of this Agreement and the other agreements contemplated herein by
Buyer and the transactions contemplated hereby and thereby to be consummated by
Buyer have been duly authorized by all requisite limited liability company
action by Buyer. This Agreement and the other agreements contemplated herein
have been duly executed and delivered by Buyer and constitutes a valid and
binding agreement of Buyer enforceable against it in accordance with its terms
subject to applicable bankruptcy, insolvency and other similar laws relating to
or affecting the enforcement of creditors' rights generally and to general
principles of equity (regardless of whether enforcement is considered in a
proceeding in equity or at law).

         4.3 No Violations. The execution and delivery of this Agreement by
Buyer and the consummation of the transactions and agreements contemplated
herein to be consummated by Buyer do not and will not:

                  4.3.1 violate any provision of its certificate of formation,
         limited liability company agreement, or any equivalent governing
         instruments of Buyer;

                  4.3.2 violate any provision of or require any filing,
         consent, authorization or approval under any Legal Requirement binding
         upon Buyer;

                  4.3.3 conflict with, result in a breach of, constitute a
         default under, or require any consent, authorization or approval under
         (i) any mortgage, indenture, loan or credit agreement or any other
         agreement or instrument evidencing indebtedness for money borrowed, or
         any financing lease to which Buyer is a party or by which it is bound
         or to which any of its properties is subject or (ii) in any material
         respect, any other agreement or instrument to which Buyer is a party
         or by which it is bound or to which any of its properties is subject.

         4.4 Acquisition as Investment. Buyer or its designee, as appropriate,
is acquiring the Purchased Interest for its own account as an investment
without the present intent to sell, transfer or otherwise distribute the
Purchased Interest to any other person or entity.

                                       6

<PAGE>   10

         4.5 Brokerage or Finders Fees. Buyer and its Affiliates have no
liability or obligation to pay any fees or commissions to any broker, finder,
or agent with respect to the transactions contemplated by this Agreement.

                                   ARTICLE V
                      ADDITIONAL AGREEMENTS AND COVENANTS

         5.1 Covenants of Seller. Seller covenants and agree with Buyer as
follows:

                  5.1.1 Transaction Costs. Seller shall bear and pay all of the
         costs, fees and expenses incurred by or on behalf of it in connection
         with the transactions contemplated by this Agreement.

                  5.1.2 Tax Election. Seller agrees, and Seller will cause its
         affiliated member(s) of Holdings, if any, to agree, to timely make, in
         the 1999 Holdings' tax return, the election under Internal Revenue
         Code Section 754 to adjust the basis of partnership property in
         conjunction with the transfer of the Purchased Interest contemplated
         herein. In addition, Seller agrees to cause its affiliated members of
         Stingray Pipeline Company, L.L.C. and West Cameron Dehydration
         Company, L.L.C. to timely make, in the appropriate Stingray and WCDC
         tax returns, the election under Internal Revenue Code Section 754 to
         adjust the basis of partnership property in conjunction with the
         transfers of the purchased interests described in the Purchase and
         Sale Agreement dated of even date herewith by and between NGPL
         Offshore Company and MidCon Dehydration Corp as Sellers and Leviathan
         Gas Pipeline Partners, L.P., as Buyer.

         5.2 Covenants of Buyer. Buyer covenants and agrees with Seller as
follows:

                  5.2.1 Transaction Costs. Buyer shall bear and pay all of the
         costs, fees and expenses incurred by or on behalf of it in connection
         with the transactions contemplated by this Agreement.

                  5.2.2 Tax Election. Buyer agrees, and Buyer will cause its
         affiliated member(s) of Holdings, if any, to agree, to timely make, in
         the 1999 Holdings' tax return, the election under Internal Revenue
         Code Section 754 to adjust the basis of partnership property in
         conjunction with the transfer of the Purchased Interest contemplated
         herein.

         5.3 Mutual Covenants. Buyer and Seller each covenant and agree as
follows:

                  5.3.1 Transfer Taxes. Buyer and Seller shall be equally
         responsible for the payment of all state and local transfer, sales,
         use or other similar Taxes resulting from the transactions
         contemplated by this Agreement.

                  5.3.2 Reasonable Efforts. Subject to the terms and conditions
         of this Agreement, each Party will use its Reasonable Efforts to take,
         or cause to be taken, all actions and to do, or cause to be done, all
         things necessary, proper, or advisable under

                                       7

<PAGE>   11

         applicable Legal Requirements to consummate the transactions
         contemplated by this Agreement, including satisfying the conditions to
         closing.

                  5.3.3 Certain Filings. Buyer and Sellers shall cooperate with
         one another (i) in determining whether any action by or in respect of,
         or filing with, any Governmental Authority is required, or any
         actions, consents, approvals, or waivers are required to be obtained
         from parties to any material agreements, in connection with the
         consummation of the transactions contemplated by this Agreement, and
         (ii) in taking such actions or making such filings, furnishing
         information required in connection therewith and seeking timely to
         obtain such actions, consents, approvals, or waivers.

                  5.3.4 Notices of Certain Events. Each of the Buyer and Seller
         shall promptly notify the other Party hereto of:

                  (a) any notice or other communication from any Person
         alleging that the consent of such Person is or may be required in
         connection with the transactions contemplated by this Agreement;

                  (b) any notice or other communication from any Governmental
         Authority in connection with the transactions contemplated by this
         Agreement;

                  (c) any actions, suits, claims, investigations or proceedings
         commenced or, to its knowledge, threatened against, relating to, or
         involving or otherwise affecting such Party that, if pending on the
         date of this Agreement, would have been required to have been
         disclosed pursuant to any provision of this Agreement or that relate
         to the consummation of the transactions contemplated by this
         Agreement; and

                  (d) (i) the discovery by such party that any representation
         or warranty contained in this Agreement is untrue or inaccurate in any
         material respect, (ii) the occurrence or failure to occur of any event
         which occurrence or failure to occur would be likely to cause any of
         the representations or warranties in this Agreement to be untrue or
         incorrect in any material respect at the Closing Date, except for
         representations and warranties that speak as of a specified date,
         which need only be true and correct as of the specified date and (iii)
         any material failure on its part to comply with or satisfy any
         covenant, conditions or agreement to be complied with or satisfied by
         it hereunder; provided, however, that the delivery of any notice
         pursuant to this Section 5.3.4 shall not limit or otherwise affect the
         remedies available hereunder to the Party receiving such notice.

                                   ARTICLE VI
                             CONDITIONS TO CLOSING

         6.1 Buyer's Obligation to Close. Buyer's obligation to close under
this Agreement is subject to the fulfillment, on the Closing Date, of each of
the following conditions (except to the extent that Buyer shall have hereafter
agreed in writing to waive one or more of such conditions):

                                       8

<PAGE>   12

                  6.1.1 Litigation. There shall not be pending or threatened
         any litigation or proceeding (filed by a person or entity other than
         Buyer or its Affiliates) to restrain or prohibit any material portion
         of the transactions contemplated by this Agreement or to obtain
         material damages or other material relief in connection with the
         consummation of such transactions.

                  6.1.2 Compliance with Agreement. Seller shall have performed
         and complied in all material respects with all covenants required by
         this Agreement to be performed or complied with by Seller on or prior
         to the Closing.

                  6.1.3 Representations and Warranties. The representations and
         warranties of Seller contained in this Agreement shall be true and
         correct in all material respects on and as of the Closing Date, except
         that those representations and warranties which address matters only
         as of a particular date shall remain true and correct as of such date.

                  6.1.4 HSR. Buyer and Seller shall have made all necessary
         filings under the HSR Act with respect to the consummation of the
         transactions contemplated by this Agreement and have received early
         termination of the waiting period under the HSR Act with respect
         thereto.

                  6.1.5 Regulatory Approval. Prior to or simultaneously with
         the Closing hereunder, Buyer and Seller shall have received all
         required regulatory approvals and authorizations in form and substance
         acceptable to each Party.

                  6.1.6 Third Party Consents. Prior to or simultaneously with
         the Closing hereunder, Buyer and Seller shall have received all
         required third party consents and approvals to the transactions
         contemplated under this Agreement and the other agreements
         contemplated herein.

                  6.1.7 Closings. The closing of the transactions contemplated
         in the Contribution and Assignment Agreement dated of even date
         herewith between Affiliates of Buyer and Affiliates of Seller and
         other agreements contemplated therein shall occur immediately prior to
         the Closing hereunder.

         6.2 Seller's Obligation to Close. The obligation of Seller to close
under this Agreement is subject to the fulfillment on the Closing Date of each
of the following conditions (except to the extent that Seller shall have
hereafter agreed in writing to waive one or more of such conditions):

                  6.2.1 Litigation. There shall not be pending or threatened
         any litigation or proceeding (filed by a person or entity other than
         Seller or its Affiliates) to restrain or prohibit any material portion
         of the transactions contemplated by this Agreement or to obtain
         material damages or other material relief in connection with the
         consummation of such transactions.

                                       9

<PAGE>   13

                  6.2.2 Compliance with Agreement. Buyer shall have performed
         and complied in all material respects with all covenants required by
         this Agreement to be performed or complied with by Buyer on or prior
         to the Closing.

                  6.2.3 Representations and Warranties. The representations and
         warranties of Buyer contained in this Agreement shall be true and
         correct in all material respects on and as of the Closing Date, except
         that those representations and warranties which address matters only
         as of a particular date shall remain true and correct as of such date.

                  6.2.4 HSR. Buyer and Seller shall have made all necessary
         filings under the HSR Act with respect to the consummation of the
         transactions contemplated by this Agreement and have received early
         termination of the waiting period under the HSR Act with respect
         thereto.

                  6.2.5 Regulatory Approval. Prior to or simultaneously with
         the Closing hereunder, Buyer and Seller shall have received all
         required regulatory approvals and authorizations in form and substance
         acceptable to each Party.

                  6.2.6 Third Party Consents. Prior to or simultaneously with
         the Closing hereunder, Buyer and Seller shall have received all
         required third party consents and approvals to the transactions
         contemplated under this Agreement and the other agreements
         contemplated herein.

                  6.2.7 Closings. The closing of the transactions contemplated
         in the Contribution and Assignment Agreement dated of even date
         herewith between Affiliates of Buyer and Affiliates of Seller and
         other agreements contemplated therein shall occur immediately prior to
         the Closing hereunder.

                                  ARTICLE VII
                                INDEMNIFICATION

         7.1 Indemnification of Buyer. Seller shall indemnify and defend Buyer,
its Affiliates (including any Affiliates designated by Buyer to purchase the
Purchased Interest if the Closing occurs) and their directors, officers,
employees, contractors, agents and other representatives (each a "Buyer
Indemnified Party") against, and hold each Buyer Indemnified Party harmless
from any Loss that such Buyer Indemnified Party incurs to the extent arising
out of or resulting from any of the following:

                  7.1.1 the failure of any of the representations and
         warranties of Seller contained in this Agreement to be true and
         correct as of the date made or the inaccuracy of any such
         representation or warranty as of the date made; or

                  7.1.2 Seller's breach or the failure of Seller to perform or
         satisfy in any material respect any covenant made by, or other
         obligation of, Seller herein.

                                       10

<PAGE>   14

         7.2 Indemnification of Seller. Subject to Sections 7.4 and 7.5, Buyer
shall indemnify and defend Seller and its Affiliates and their directors,
officers, employees, contractors, agents and other representatives ("Seller
Indemnified Parties") against, and hold each Seller Indemnified Party harmless
from any Loss that such Seller Indemnified Party incurs, to the extent arising
out of or resulting from any of the following:

                  7.2.1 the failure of any of the representations and
         warranties of Buyer contained in this Agreement to be true and correct
         as of the date made or the inaccuracy of any such representation or
         warranty as of the date made; or

                  7.2.2 Buyer's breach or the failure of Buyer to perform or
         satisfy in any material respect any covenant made by, or other
         obligation of, Buyer herein.

         7.3 Indemnification Procedures. All claims for indemnification under
this Agreement shall be asserted and resolved as follows:

                  7.3.1 A party claiming indemnification under this Agreement
         (an "Indemnified Party") with respect to any third-party Claim or
         Claims asserted against the Indemnified Party ("Third Party Claim")
         that could give rise to a right of indemnification under this
         Agreement shall promptly (a) notify the party from whom
         indemnification is sought (the "Indemnifying Party") of the Third
         Party Claim and (b) transmit to the Indemnifying Party a written
         notice ("Claim Notice") describing in reasonable detail the nature of
         the Third Party Claim, a copy of all papers served with respect to
         such Third Party Claim (if any), the Indemnified Party's best estimate
         of the amount of damages attributable to the Third Party Claim and the
         basis of the Indemnified Party's request for indemnification under
         this Agreement. Subject to Section 7.3.2, failure to provide such
         Claim Notice shall not affect the right of the Indemnified Party's
         indemnification hereunder except to the extent the Indemnifying Party
         is prejudiced thereby. Within 30 days after receipt of any Claim
         Notice (the "Election Period"), the Indemnifying Party shall notify
         the Indemnified Party (x) whether the Indemnifying Party disputes its
         potential liability to the Indemnified Party under this Article VII
         with respect to such Third Party Claim and (y) whether the
         Indemnifying Party desires to defend the Indemnified Party against
         such Third Party Claim; provided that if the Indemnifying Party fails
         to so notify the Indemnified Party during the Election Period, the
         Indemnifying Party shall be deemed to have elected to dispute such
         liability.

                  7.3.2 If the Indemnifying Party notifies the Indemnified
         Party within the Election Period that the Indemnifying Party does not
         dispute its potential liability to the Indemnified Party under this
         Article VII and that the Indemnifying Party elects to assume the
         defense of the Third Party Claim, then the Indemnifying Party shall
         have the right to defend, at its sole cost and expense, such Third
         Party Claim by all appropriate proceedings, which proceedings shall be
         prosecuted diligently by the Indemnifying Party to a final conclusion
         or settled at the discretion of the Indemnifying Party in accordance
         with this Section 7.3.2. The Indemnifying Party shall have full
         control of such defense and proceedings, including any compromise or
         settlement thereof; provided that the Indemnifying Party shall not
         enter into any settlement agreement providing for a finding

                                       11

<PAGE>   15

         of responsibility or liability on the part of the Indemnified Party or
         providing any material sanction or material restriction upon the
         conduct of any business by the Indemnified Party without the
         Indemnified Party's consent, which consent shall not unreasonably be
         withheld. The Indemnified Party is hereby authorized, at the sole cost
         and expense of the Indemnifying Party (but only if the Indemnified
         Party is actually entitled to indemnification hereunder), to file,
         during the Election Period, any motion, answer or other pleadings
         which the Indemnified Party shall deem necessary or appropriate to
         protect its interests or those of the Indemnifying Party and not
         prejudicial to the Indemnifying Party (it being understood and agreed
         that if an Indemnified Party takes any such action, the Indemnifying
         Party shall be relieved of its obligations hereunder with respect to
         such Third Party Claim to the extent that such action prejudiced the
         Indemnifying Party). If requested by the Indemnifying Party, the
         Indemnified Party agrees, at the sole cost and expense of the
         Indemnifying Party, to cooperate with the Indemnifying Party and its
         counsel in contesting any Third Party Claim which the Indemnifying
         Party elects to contest, including the making of any related
         counterclaim against the person or entity asserting the Third Party
         Claim or any cross-complaint against any person or entity. The
         Indemnified Party may participate in, but not control, any defense or
         settlement or any Third Party Claim controlled by the Indemnifying
         Party pursuant to this Section 7.3, and the Indemnified Party shall
         bear its own costs and expenses with respect to such participation.

                  7.3.3 If the Indemnifying Party fails to notify the
         Indemnified Party within the Election Period that the Indemnifying
         Party elects to defend the Indemnified Party pursuant to Section
         7.3.2, or if the Indemnifying Party elects to defend the Indemnified
         Party pursuant to Section 7.3.2 but fails to diligently prosecute or
         settle the Third Party Claim, then the Indemnified Party shall have
         the right to defend, at the sole cost and expense of the Indemnifying
         Party (but only if the Indemnified Party is actually entitled to
         indemnification hereunder), the Third Party Claim by all appropriate
         proceedings, which proceedings shall be promptly and vigorously
         prosecuted by the Indemnified Party to a final conclusion or settled.
         The Indemnified Party shall have full control of such defense and
         proceedings; provided, however, that the Indemnified Party may not
         enter into, without the Indemnifying Party's consent, which shall not
         be unreasonably withheld, any compromise or settlement of such Third
         Party Claim. The Indemnifying Party may participate in, but not
         control, any defense or settlement controlled by the Indemnified Party
         pursuant to this Section 7.3.3, and the Indemnifying Party shall bear
         its own costs and expenses with respect to such participation.

                  7.3.4 In the event any Indemnified Party should have a claim
         against any Indemnifying Party hereunder which does not involve a
         Third Party Claim, the Indemnified Party shall promptly transmit to
         the Indemnifying Party a written notice (the "Indemnity Notice")
         describing in reasonable detail the nature of the claim, the
         Indemnified Party's best estimate of the amount of damages
         attributable to such claim and the basis of the Indemnified Party's
         request for indemnification under this Agreement. If the Indemnifying
         Party does not notify the Indemnified Party within 60 days from its
         receipt of the Indemnity Notice that the Indemnifying Party disputes
         such claim, the Indemnifying Party shall be deemed to have disputed
         such claim. If the

                                       12

<PAGE>   16

         Indemnifying Party has disputed (or is deemed to have disputed) such
         claim, such dispute shall be resolved by arbitration in accordance
         with Section 9.1.

         7.4 Negligence. SUBJECT TO SECTION 7.5, AN INDEMNIFIED PARTY SHALL BE
ENTITLED TO INDEMNIFICATION HEREUNDER IN ACCORDANCE WITH THE TERMS HEREOF,
REGARDLESS OF WHETHER THE LOSS OR CLAIM GIVING RISE TO SUCH INDEMNIFICATION
OBLIGATION IS THE RESULT OF THE SOLE, JOINT, CONCURRENT OR COMPARATIVE
NEGLIGENCE, STRICT LIABILITY OR VIOLATION OF ANY LAW OF OR BY SUCH INDEMNIFIED
PARTY. THE PARTIES AGREE THAT THIS PARAGRAPH CONSTITUTES A CONSPICUOUS LEGEND.

         7.5 Limitation on Liabilities.

                  7.5.1 BUYER AND SELLER (I) AGREE THAT ONLY ACTUAL DAMAGES
         SHALL BE RECOVERABLE UNDER THIS AGREEMENT AND (II) HEREBY WAIVE ANY
         RIGHT TO RECOVER, AND AGREE THAT THE TERM LOSSES SHALL NOT COVER,
         SPECIAL, PUNITIVE, CONSEQUENTIAL, INCIDENTAL OR EXEMPLARY DAMAGES
         (WHETHER BASED ON STATUTE, CONTRACT, TORT OR OTHERWISE, AND WHETHER OR
         NOT ARISING FROM THE INDEMNIFYING PARTY'S SOLE, JOINT OR CONCURRENT
         NEGLIGENCE, STRICT LIABILITY OR OTHER FAULT) EXCEPT TO THE EXTENT ANY
         SUCH PARTY SUFFERS SUCH DAMAGES TO AN UNAFFILIATED THIRD-PARTY IN
         CONNECTION WITH A THIRD-PARTY CLAIM, IN WHICH EVENT SUCH DAMAGES SHALL
         BE RECOVERABLE.

         7.6 Survival. The representations and warranties in Article III shall
survive the Closing solely for purposes of this Article VII and shall terminate
four years and six months after the Closing Date. The representations and
warranties in Article IV shall survive the Closing solely for purposes of this
Article VII and shall terminate four years and six moths after the Closing
Date. No Claim can be brought with respect to any inaccuracy or failure of any
representation and warranty under this Agreement unless a Claim Notice or
Indemnity Notice specifying the inaccuracy or failure of the representation or
warranty forming the basis of such Claim has been delivered to the Party making
such representation or warranty prior to the termination date of such
representation or warranty as described in this Section 7.6. Notwithstanding
anything to the contrary in this Agreement, the indemnification provisions of
this Agreement shall be the exclusive remedies for any Claim based upon this
Agreement or the transactions described herein following Closing. In
furtherance of the foregoing, all other remedies available at law or in equity,
in tort, contract or otherwise are hereby waived, released and discharged by
Seller and Buyer.

                                       13
<PAGE>   17

                                  ARTICLE VIII
                               TERMINATION RIGHTS

         8.1 Termination. This Agreement may be terminated and the transactions
contemplated hereby abandoned as follows:

                  8.1.1 By the mutual written consent of Buyer and Seller at
         any time prior to the Closing;

                  8.1.2 By Buyer or Seller if an order to restrain, enjoin or
         otherwise prevent the consummation of the transactions contemplated
         hereby shall have been entered;

                  8.1.3 By Seller at any time prior to the Closing if the
         Closing shall not have occurred on or before September 30, 1999 by
         reason of a failure of any condition precedent under Section 6.2
         unless the failure results primarily from the breach by Seller of any
         representation, warranty or covenant contained in this Agreement; or

                  8.1.4 By Buyer at any time prior to the Closing if the
         Closing shall not have occurred on or before September 30, 1999 by
         reason of a failure of any condition precedent under Section 6.1,
         unless the failure results primarily from Buyer itself breaching any
         representation, warranty or covenant contained in this Agreement.

         8.2 Effect of Termination. In the event of any termination of this
Agreement pursuant to Section 8.1, (a) Seller and Buyer shall have no
obligation or liability to each other except that the provisions of Article
VII, IX and X shall survive any such termination, and (b) nothing herein and no
termination pursuant hereto will relieve any party from liability for any
breach of this Agreement prior to such termination or, with respect to those
provisions that survive such termination, prior to or following termination.

                                   ARTICLE IX
                                  ARBITRATION

         9.1 Arbitration.

                  9.1.1 Any and all claims, counterclaims, demands, cause of
         action, disputes, controversies, and other matters in question arising
         out of or relating to this Agreement, any provision hereof, the
         alleged breach of any such provision, or in any way relating to the
         subject matter of this Agreement or the relationship between the
         Parties created by this Agreement, involving the Parties and/or their
         respective representatives (all of which are referred to herein as
         "Claims"), even though some or all of such Claims allegedly are
         extra-contractual in nature, whether such Claims sound in contract,
         tort, or otherwise, at law or in equity, under State or federal law,
         whether provided by statute or the common law, for damages or any
         other relief, shall be resolved by binding arbitration in accordance
         with this Section 9.1.

                                       14
<PAGE>   18

                  9.1.2 It is the intention of the Parties that the arbitration
         shall be conducted pursuant to the Federal Arbitration Act, as such
         Act is modified by this Agreement. The validity, construction, and
         interpretation of this Section 9.1, and all procedural aspects of the
         arbitration conducted pursuant to this Section 9.1, including the
         determination of the issues that are subject to arbitration (i.e.,
         arbitrability), the scope of the arbitrable issues, allegations of
         "fraud in the inducement" to enter into this Agreement, or this
         arbitration provision, allegations of waiver, laches, delay or other
         defenses to arbitrability, and the rules governing the conduct of the
         arbitration (including the time for filing an answer, the time for the
         filing of counterclaims, the times for amending the pleadings, the
         specificity of the pleadings, the extent and scope of discovery, the
         issuance of subpoenas, the times for the designation of experts,
         whether the arbitration is to be stayed pending resolution of related
         litigation involved third parties not bound by this Agreement, the
         receipt of evidence, and the like), shall be decided by the
         arbitrators. The arbitration shall be administered by the American
         Arbitration Association (the "AAA"), and shall be conducted pursuant
         to the Commercial Arbitration Rules of the AAA, as modified by this
         Agreement. In deciding the substance of the parties' Claims, the
         arbitrators shall refer to the substantive laws of the State of Texas
         for guidance (excluding Texas choice-of-law principles that might call
         for the application of some other State's law). Notwithstanding any
         other provision in this Section 9.1 to the contrary, the Parties
         expressly agree that the arbitrators shall have absolutely no
         authority to award incidental, special, treble, exemplary or punitive
         damages of any type under any circumstances regardless of whether such
         damages may be available under Texas law, the law of any other State,
         or federal law, or under the Federal Arbitration Act, or under the
         Commercial Arbitration Rules of the AAA, the parties hereby waiving
         their right, if any, to recover incidental, special, treble, exemplary
         or punitive damages in connection with any such Claims.

                  9.1.3 The arbitration proceeding shall be conducted in
         Houston, Texas before a panel of three arbitrators appointed in
         accordance with the Commercial Arbitration Rules of the AAA consisting
         of persons from any of the following categories: (i) attorneys having
         practiced in the area of natural gas transportation law for at least
         ten (10) years, (ii) engineers with at least ten (10) years of
         experience in the natural gas transportation industry, or (iii)
         accountants with at least ten (10) years of experience in the natural
         gas transportation industry. The arbitrators shall conduct a hearing
         as soon as reasonably practicable after appointment of the third
         arbitrator, and a final decision completely disposing of all Claims
         that are the subject of the arbitration proceedings shall be rendered
         by the arbitrators as soon as reasonably practicable after the
         hearing. There shall be no transcript of the hearing before the
         arbitrators. The arbitrators' ultimate decision after final hearing
         shall be in writing, but shall be as brief as possible, and the
         arbitrators shall not assign reasons for their ultimate decision. In
         case the arbitrators award monetary damages to either Party, the
         arbitrators shall certify in their award that they have not included
         any incidental, special, treble, exemplary or punitive damages.

                  9.1.4 The fees and expenses of the arbitrators shall be borne
         equally by the Parties, but the decision of the arbitrators may
         include such award of the arbitrators' fees and expenses and of other
         costs and attorneys' fees as the arbitrators determine appropriate.

                                       15
<PAGE>   19

                  9.1.5 To the fullest extent permitted by law, the arbitration
         proceeding and the arbitrators' award shall be maintained in
         confidence by the Parties.

                  9.1.6 The award of the arbitrators shall be binding upon the
         parties and final and nonappealable to the maximum extent permitted by
         law, and judgment thereon may be entered in a court of competent
         jurisdiction and enforced by any Party as a final judgment of such
         court.

                                   ARTICLE X
                                    GENERAL

         10.1 Exclusive Agreement. This Agreement and the attached exhibit set
forth the entire agreement and understanding of the Parties in respect of the
transactions contemplated hereby and supersede all prior agreements,
arrangements and undertakings (oral or written) relating to the subject matter
hereof. No representation, promise, inducement or statement of intention has
been made by any Party which is not embodied in or superseded by this Agreement
or in the agreements and documents to be executed pursuant hereto, and no Party
shall be bound by or liable for any alleged representation, promise, inducement
or statement of intention not so set forth.

         10.2 Successors and Assigns. All of the terms, covenants,
representations, warranties and conditions of this Agreement shall be binding
upon, and inure to the benefit of, and be enforceable by, the Parties and their
respective permitted successors and assigns (and in the case of indemnities to
the benefit of all persons indemnified). This Agreement and the rights and
obligations hereunder shall not be assigned by any Party hereto without the
prior written consent of the other Party.

         10.3 Amendments. This Agreement may be amended, modified, superseded
or canceled, and any of the terms, covenants, representations, warranties or
conditions hereof may be waived, only by a written instrument executed by the
Parties, or, in the case of a waiver, by or on behalf of the Party waiving
compliance. The failure of any Party at any time or times to require
performance of any provisions hereof shall in no manner affect the right at a
later time to enforce the same. No waiver by any Party of any condition, or of
any breach of any term, covenant, representation or warranty contained in this
Agreement, in any one or more instances, shall be deemed to be or construed as
a further or continuing waiver of any such condition or breach or a waiver of
any other condition or of any breach of any other term, covenant,
representation or warranty.

         10.4 Further Assurances. Each Party agrees to execute such further
instruments or documents as the other Party may from time to time reasonably
request in order to confirm or carry out the transactions contemplated in this
Agreement; provided that no such instrument or document shall expand a Party's
liability beyond that contemplated in this Agreement.

                                       16
<PAGE>   20

         10.5 Notices. All notices, requests, demands and other communications
(collectively, "Notices") required or permitted to be given hereunder shall be
in writing and delivered personally, or by facsimile transmission or mailed
first class, postage prepaid, registered or certified mail, as follows:

         If to Buyer, to:

         ANR Western Gulf Holdings, L.L.C.
         500 Renaissance Center
         Detroit, Michigan 48243
         Attention:  President
         Facsimile:  (313) 496-3555

         If to Seller, to:

         Leviathan Deepwater, L.L.C.
         El Paso Energy Building
         1001 Louisiana
         Houston, Texas  77002
         Attention:   President
         Facsimile Number: (713) 420-5472

All Notices shall be effective upon receipt. Any Party may change its Notice
address by giving written Notice to the other in the manner specified above.

         10.6 Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED
AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF TEXAS WITHOUT REGARD
TO CONFLICT OF LAW PRINCIPLES.

         10.7 Severability. In the event any of the provisions hereof are held
to be invalid or unenforceable under any Legal Requirement, the remaining
provisions hereof shall not be affected thereby. In such event, the Parties
agree and consent that such provisions and this Agreement shall be modified and
reformed so as to effect the original intent of the Parties as closely as
possible with respect to those provisions which were held to be invalid or
unenforceable.

         10.8 Counterparts. This Agreement may be executed simultaneously in
two or more counterparts, each of which shall be deemed an original, but all of
which shall constitute but one agreement.

         10.9 Expenses. Except as expressly provided in this Agreement, whether
or not the transactions contemplated hereby are consummated, each Party shall
pay its own expenses incident to the preparation of the Agreement and for
consummating the transaction.

           [The remainder of this page is intentionally left blank.]

                                       17
<PAGE>   21

         IN WITNESS WHEREOF, the Parties have duly executed this instrument the
day and year first above written.

SELLER:

LEVIATHAN DEEPWATER, L.L.C.

By:     /s/ T. DARTY SMITH
       -----------------------------------
Name:       T. Darty Smith
       -----------------------------------
Title:      Vice President
       -----------------------------------

BUYER:

ANR WESTERN GULF HOLDINGS, L.L.C.

By:     /s/ WILLIAM L. JOHNSON
       -----------------------------------
Name:       William L. Johnson
       -----------------------------------
Title:      Senior Vice President
       -----------------------------------

Exhibit A:  Form of Assignment

<PAGE>   22

                                   EXHIBIT A

                                   Assignment

         This Assignment is made and entered into as of September ___, 1999 by
and between Leviathan Deepwater, a Delaware limited liability company
("Assignor") and ANR Western Gulf Holdings, L.L.C., a Delaware limited
liability company ("Assignee").

         WHEREAS, in accordance with that certain Purchase and Sale Agreement
dated as of September __, 1999 (the "Purchase and Sale Agreement") between
Assignor and Assignee, Assignor desires to assign the Subject Interest (herein
defined) to Assignee;

         NOW, THEREFORE, for and in consideration of the premises and the
mutual covenants and agreements contained herein and other good and valuable
consideration (the receipt and sufficiency of which are hereby confirmed and
acknowledged), the parties hereto hereby stipulate and agree as follows:

         1. Assignment. Assignor hereby assigns, conveys, transfers, and
contributes to Assignee, on the terms herein provided, all of its rights, title
and interest in and to the property described on Exhibit "A" attached hereto
(the "Subject Interest"). The Subject Interest is being assigned, along with
other contributions, assignments and commitments, to Assignor in exchange for
the execution and delivery of this Assignment and the other agreements executed
in connection with the Purchase and Sale Agreement.

         2. Purchase and Sale Agreement. THIS ASSIGNMENT IS SUBJECT TO THE
TERMS AND CONDITIONS OF THE PURCHASE AND SALE AGREEMENT, INCLUDING WITHOUT
LIMITATION THE PROVISIONS THEREOF THAT LIMIT IN CERTAIN RESPECTS THE LIABILITY
OF ASSIGNOR IN CONNECTION HEREWITH AND SET FORTH THE EXCLUSIVE REMEDIES OF THE
PARTIES IN CONNECTION HEREWITH.

         3. Entire Agreement. This Assignment, the Purchase and Sale Agreement
and the other agreements executed in connection and contemporaneously herewith
constitute the entire agreement and supersede all prior (oral or written) or
oral contemporaneous proposals or agreements, all previous negotiations and all
other communications or understandings between the parties hereto with respect
to the subject matter hereof.

         4. Amendment and Modification. All amendments, supplements and
modifications to this Assignment shall be in writing and signed by each of the
parties hereto.

         5. Counterparts. This Assignment may be executed in multiple
counterparts, each of which, when executed, shall be deemed an original, and
all of which shall constitute but one and the same instrument.

         6. Parties Bound by Agreement. This Assignment shall be binding upon
and shall inure to the benefit of the Parties and their respective successors
and assigns.

                                   EXHIBIT A
                                     Page 1

<PAGE>   23

         7. Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED
AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF TEXAS WITHOUT REGARD
TO CONFLICT OF LAW PRINCIPLES.

         8. Exhibits and Schedules. All exhibits, schedules and the like
contained herein or attached hereto are integrally related to this Assignment,
and are hereby made a part of this Assignment for all purposes.

         9. Further Assurances. Subject to the terms and conditions set forth
in this Assignment, each of the parties hereto agrees to use all reasonable
efforts to take, or to cause to be taken, all actions, and to do, or to cause
to be done, all things necessary, proper or advisable under applicable laws and
regulations to consummate and make effective the transactions contemplated by
this Assignment. In case, at any time after the execution of this Assignment,
any further action is necessary or desirable to carry out its purposes, the
proper officers or directors of the parties hereto shall take or cause to be
taken all such necessary action.

         10. Severability. Any term or provision of this Assignment that is
invalid or unenforceable in any jurisdiction shall be ineffective as to such
jurisdiction, to the extent of such invalidity or unenforceability, without
rendering invalid or unenforceable the remaining terms and provisions of this
Assignment or affecting the validity or enforceability of any terms and
provisions of this Assignment in any other jurisdiction. If any provision of
this Assignment is so broad as to be unenforceable, such provision shall be
interpreted to be only so broad as is enforceable.

           [The remainder of this page is intentionally left blank.]

                                   EXHIBIT A
                                     Page 2

<PAGE>   24

         IN WITNESS WHEREOF, the undersigned have executed this Assignment as
of the date first above written.

                                 ASSIGNOR:

                                 LEVIATHAN DEEPWATER, L.L.C.

                                 By:
                                       -----------------------------------
                                 Name:
                                       -----------------------------------
                                 Title:
                                       -----------------------------------

                                 ASSIGNEE

                                 ANR WESTERN GULF HOLDINGS, L.L.C.

                                 By:
                                       -----------------------------------
                                 Name:
                                       -----------------------------------
                                 Title:
                                       -----------------------------------

AGREED TO AND ACCEPTED
THIS ___ DAY OF SEPTEMBER, 1999

DEEPWATER HOLDINGS, L.L.C.

By:
         -----------------------------------
Name:
         -----------------------------------
Title:
         -----------------------------------

                                   EXHIBIT A
                                     Page 3
<PAGE>   25

                            Exhibit A to Assignment

A 9.66% membership interest in Deepwater Holdings, L.L.C., a Delaware limited
liability company.

                                   EXHIBIT A
                                     Page 4<PAGE>   1
                    AMENDMENT NO. 1 TO FABRICATION AGREEMENT

         This Amendment No. 1 (this "Amendment") dated as of August 31, 1999, to
that certain Fabrication Agreement made and entered into as of July 16, 1999 (as
in effect on the date hereof, the "Contract") by and between DELOS OFFSHORE
COMPANY ("Company"), a Delaware limited liability company, and MODEC
INTERNATIONAL LLC ("Contractor"), a Delaware limited liability company, is
entered into by and between Company and Contractor. Hereinafter, Company and
Contractor may be referred to individually as a "Party" and collectively as the
"Parties."

                              W I T N E S S E T H:

         WHEREAS, Company and Contractor are parties to the Contract wherein
Contractor agreed to design, fabricate, assemble and deliver facilities in
accordance with the terms of such Contract, and Company agreed to pay for such
Work (as defined in the Contract) performed by Contractor; and

         WHEREAS, Company and Contractor now desire to amend the Contract to (i)
redefine the order of priority of the appendices in the event of any conflict
between the provisions of the Contract Documents (as defined in the Contract),
and (ii) modify the notice periods specified in certain of the provisions of the
Contract.

         NOW, THEREFORE in consideration of the premises contained herein and
for other good and valuable consideration, the receipt and sufficiency of which
are hereby acknowledged, Company and Contractor hereby stipulate and agree as
follows:

         1. Definitions. Terms defined in this Amendment have the meanings
specified herein, and capitalized terms not defined herein, but defined in the
Contract, are used herein as therein defined.

         2. Amendments. The Contract shall be and is hereby amended as follows:

               A. Article 2.3 is hereby amended by deleting subsections (a), (b)
          and (c) in their entirety, and substituting the following:

               a) this Fabrication Agreement,

               b) Appendices A, B, C, E, F, G, H, K, N, M, L, J, I, O, P and D.

               B. Section 6.2 is hereby amended by replacing the term "seven (7)
          Days" each time it appears in the second and third paragraphs with the
          term "14 Days."

               C. Section 12.2 is hereby amended by replacing the phrase "within
          seven (7) Days" in the first paragraph with the following phrase:

<PAGE>   2

               "within 21 Days (except with respect to offshore Work, in which
               case it shall be submitted within two (2) Days)".

               D. Article 16.1 is hereby amended by replacing the phrase "within
          seven (7) Days" in the first paragraph with the following phrase:

               "within 21 Days (except with respect to offshore Work, in which
               case it shall be prepared within two (2) Days)".

                  Article 16.1 is further amended by replacing the phrase
          "within seven (7) Days" in the second paragraph with the following
          phrase:

               "within 21 Days (except with respect to offshore Work, in which
               case it shall be presented within two (2) Days)".

                  Article 16.1 is further amended by replacing the phrase
          "within seven (7) Days" in the fourth paragraph with the following
          phrase:

               "within 21 Days (except with respect to offshore Work, in which
               case it shall be informed within two (2) Days)".

               E. Article 28.2 is hereby amended by replacing the term "14 Days"
          in the first line with "21 Days."

         3. No Other Waivers or Amendments. Except as expressly waived or
amended hereby, the Contract shall remain in full force and effect in accordance
with its terms, without any waiver, amendment or modification of any provision
thereof.

         4. Successors and Assigns. This Amendment shall be binding upon and
inure to the benefit of the Parties and their respective successors and
permitted assigns.

         5. Counterparts. This Amendment may be executed by one or more of the
Parties on any number of separate counterparts and all of said counterparts
taken together shall be deemed to constitute one and the same instrument.

         6. Governing Law. THIS AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED
AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF TEXAS, WITHOUT
REGARD TO ANY CONFLICTS OF LAWS PRINCIPLES WHICH, IF APPLIED, MIGHT PERMIT OR
REQUIRE THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION.

               [Remainder of this page intentionally left blank.]

                                        2
<PAGE>   3

         IN WITNESS WHEREOF, the Parties have caused this Amendment No. 1 to
Fabrication Agreement to be signed by their respective duly authorized
representatives effective as of the day and year first written in the preamble.

                                               COMPANY:

                                               DELOS OFFSHORE COMPANY, L.L.C.

                                               /s/ JAMES H. LYTAL
                                               ---------------------------------
                                               James H. Lytal
                                               President

                                               CONTRACTOR:

                                               MODEC INTERNATIONAL LLC

                                               /s/ K. MATSUNAGA
                                               ---------------------------------
                                               K. Matsunaga
                                               President
<PAGE>   4
                                                                   EXHIBIT 10.20

                        SUNDAY SILENCE FIELD DEVELOPMENT

                              FABRICATION AGREEMENT

                          DELOS OFFSHORE COMPANY, L.L.C.
                                     HOUSTON

                                    JULY 1999

<PAGE>   5
DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

                                TABLE OF CONTENTS
<TABLE>
<S>                                                                             <C>
PART 1    GENERAL PROVISIONS.........................................................1

     ART. 1    DEFINITIONS...........................................................1
     ART. 2    CONTRACT DOCUMENTS - INTERPRETATION...................................4
     ART. 3    REPRESENTATIVES OF THE PARTIES........................................5

PART 2    PERFORMANCE OF THE WORK....................................................5

     ART. 4    OBLIGATIONS OF CONTRACTOR - MAIN RULES................................5
     ART. 5    AUTHORITY REQUIREMENTS - PERMITS......................................6
     ART. 6    DRAWING - SPECIFICATIONS - COMPANY PROVIDED ITEMS.....................7
     ART. 7    SUBCONTRACTS..........................................................8
     ART. 8    LABOR FOR THE WORK....................................................9
     ART. 9    MINERALS MANAGEMENT SERVICE (MMS) OBLIGATIONS.........................9
     ART. 10   QUALITY ASSURANCE.....................................................9

PART 3    PROGRESS OF THE WORK......................................................10

     ART. 11   CONTRACT SCHEDULE - DELAYED PROGRESS.................................10

PART 4    VARIATIONS AND CANCELLATION...............................................11

     ART. 12   RIGHT TO VARY THE WORK...............................................11
     ART. 13   EFFECTS OF A VARIATION TO THE WORK...................................11
     ART. 14   ISSUE OF VARIATION ORDERS............................................12
     ART. 15   CONSEQUENCES OF VARIATION ORDERS - DISPUTES ABOUT CONSEQUENCES.......12
     ART. 16   DISPUTE AS TO WHETHER A VARIATION TO THE WORK EXISTS - DISPUTED
               VARIATION ORDER......................................................13
     ART. 17   CANCELLATION.........................................................14
     ART. 18   COMPANY'S RIGHT TEMPORARILY TO SUSPEND THE WORK......................16

PART 5    DELIVERY AND PAYMENT......................................................16

     ART. 19   DELIVERY AND COMPLETION OF THE WORK..................................16
     ART. 20   PAYMENT OF THE CONTRACT PRICE, INVOICING AND AUDIT...................17
     ART. 21   GUARANTEE............................................................19
     ART. 22   TITLE TO THE CONTRACT OBJECT - RIGHT TO DEMAND DELIVERY..............19
     ART. 23   CONTRACTOR GUARANTEE - ACCEPTANCE CERTIFICATE........................20

PART 6    BREACH OF CONTRACT........................................................22

     ART. 24   CONTRACTOR'S DELAY...................................................22
     ART. 25   CONTRACTOR'S DEFECTS AND GUARANTEE LIABILITY.........................24
     ART. 26   TERMINATION DUE TO CONTRACTOR'S BREACH OF CONTRACT...................25
     ART. 27   COMPANY'S BREACH OF CONTRACT.........................................26

PART 7    FORCE MAJEURE.............................................................27

     ART. 28   EFFECTS OF FORCE MAJEURE.............................................27

PART 8    LIABILITY AND INSURANCES..................................................28

     ART. 29   LOSS OF OR DAMAGE TO THE CONTRACT OBJECT OR COMPANY PROVIDED ITEMS...28
     ART. 30   EXCLUSION OF LIABILITY - INDEMNIFICATION.............................29
     ART. 31   INSURANCES...........................................................34

PART 9    PROPRIETARY RIGHTS, ETC...................................................34

     ART. 32   RIGHTS TO DOCUMENTS AND COMPUTER PROGRAMS............................34
     ART. 33   INVENTIONS...........................................................35
</TABLE>

                                       i
<PAGE>   6
DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

<TABLE>
<S>                                                                             <C>

     ART. 34   CONFIDENTIAL INFORMATION.............................................36

PART 10        OTHER PROVISIONS.....................................................37

     ART. 35   ASSIGNMENT OF THE CONTRACT, ETC......................................37
     ART. 36   NOTICES..............................................................37
     ART. 37   UNITED STATES LAW AND DISPUTES.......................................37
     ART. 38   EQUAL EMPLOYMENT OPPORTUNITY PROVISIONS..............................38
     ART. 39   POLLUTION CONTROL AND RESPONSIBILITY.................................41
     ART. 40   YEAR 2000 WARRANTY...................................................43
     ART. 41   MISCELLANEOUS........................................................44
     ART. 42   OPTION...............................................................46

APPENDICES

         APPENDIX A -- SCOPE OF WORK
         APPENDIX B -- COMPENSATION
         APPENDIX C -- CONTRACT SCHEDULE
         APPENDIX D -- ADMINISTRATION REQUIREMENTS
         APPENDIX E -- SPECIFICATIONS
         APPENDIX F -- DRAWINGS
         APPENDIX G -- COMPANY PROVIDED FILMS
         APPENDIX H -- SUBCONTRACTORS
         APPENDIX I -- COMPANY'S INSURANCES, ETC.
         APPENDIX J -- CONTRACTOR PARENT COMPANY GUARANTEE
         APPENDIX K -- CONTRACTOR'S PROPRIETARY INFORMATION
         APPENDIX L -- INVITATION TO BID
         APPENDIX M -- AGREED UPON EXCEPTIONS AND CLARIFICATIONS
         APPENDIX N -- CONTRACTOR'S BID PROPOSAL
         APPENDIX 0 -- CONTRACTOR INSURANCE
         APPENDIX P -- COMPANY PARENT COMPANY GUARANTEE
</TABLE>

                                       ii

<PAGE>   7

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

                              FABRICATION AGREEMENT

         This Fabrication Agreement (this "Contract") effective as of July 16,
1999 (the "Effective Date") is by and between DELOS OFFSHORE COMPANY
("Company"), a Delaware limited liability company, and MODEC INTERNATIONAL LLC
("Contractor"), a Delaware limited liability company. Hereinafter, Company and
Contractor may be referred to individually as a "Party" and collectively as the
"Parties."

                                    RECITALS

         WHEREAS, Contractor is in the business to design, fabricate, assemble
and deliver facilities in accordance with Appendix A - Scope of Work ("Work");
and

         WHEREAS, Company desires and has need of the type of Work provided by
Contractor; and

         WHEREAS, Company and Contractor desire to enter into a contract whereby
Contractor shall provide such Work to Company pursuant to the terms and
conditions of this agreement and as defined in Appendix A; and

         NOW, THEREFORE, for and in consideration of the premises and the mutual
covenants and agreements contained herein and for other good and valuable
consideration the adequacy and sufficiency of which are hereby acknowledged, the
Parties hereby stipulate and agree as follows:

PART 1   GENERAL PROVISIONS

ART. 1   DEFINITIONS

         a)       Acceptance Certificate means the certificate to be issued by
                  Company in accordance with Art. 23.5.

         b)       Affiliate means, with respect to a relevant Person, any Person
                  that directly or indirectly, through one or more
                  intermediaries, controls, is controlled by or is under common
                  control with such relevant Person. For purposes of this
                  definition, the term "control" (including its derivatives and
                  similar terms) means the possession, directly or indirectly,
                  of the power to direct or cause the direction of the
                  management and policies of the relevant Person, whether
                  through the ownership or control of voting interests, by
                  contract or otherwise.

         c)       Appendices means the following appendices which are attached
                  hereto and incorporated herein for all purposes: Appendix A -
                  Scope of Work, Appendix B - Compensation, Appendix C -
                  Contract Schedule, Appendix D - Administration Requirements,
                  Appendix E - Specifications, Appendix F - Drawings, Appendix
                  G - Company Provided Items, Appendix H - Subcontractors,
                  Appendix I - Company's Insurances, etc., Appendix J -
                  Contractor Parent Company Guarantee, Appendix K - Contractor's
                  Proprietary Information, Appendix L - Invitation to Bid,
                  Appendix M - Agreed Upon

                                       1

<PAGE>   8
DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

                  Exceptions and Clarifications, Appendix N - Contractor's Bid
                  Proposal, Appendix O - Contractor Insurance, and Appendix P -
                  Company Parent Company Guarantee.

         d)       Company shall have the meaning given to such term in the
                  preamble.

         e)       Company Indemnified Party means, other than any Contractor
                  Indemnified Parties, each of (i) Company and its Affiliates,
                  (ii) the contractors, subcontractors, agents, invitees and
                  other representatives of Company and its Affiliates, (iii) any
                  member, co-owner, partner, parent or other business
                  participant with the Company or any visitor of any such Person
                  and (iv) the directors, officers, employees and other
                  representatives of any such Person described in (i), (ii), and
                  (iii) above.

         f)       Company Provided Items shall have the meaning given to such
                  term in Appendix G.

         g)       Company's Representative means the Person who at any time is
                  appointed in accordance with Art. 3 to act on behalf of the
                  Company.

         h)       Completion Certificate means the certificate to be issued by
                  Company in accordance with Art. 19.

         i)       Contract means this Fabrication Agreement and Appendices as
                  stated in Art. 2, and, any amendments, supplements or
                  modifications thereto from time to time.

         j)       Contract Documents shall have the meaning given to such term
                  in Art. 2.1.

         k)       Contract Object means the item which Contractor, according to
                  the Contract, shall deliver, together with all parts thereof,
                  except for Company Provided Items before their incorporation
                  into the Contract Object.

         l)       Contract Price means the total sum payable to Contractor in
                  accordance with Appendix B, as that sum is increased or
                  decreased in accordance with the provisions of this Contract.

         m)       Contract Schedule shall have the meaning given to such term in
                  Appendix C.

         n)       Contractor shall have the meaning given to such term in the
                  preamble.

         o)       Contractor Indemnified Party means, other than any Company
                  Indemnified Parties, to the extent they are performing
                  services or delivering goods in connection with this Contract,
                  each of (i) Contractor and its Affiliates (ii) the
                  contractors, subcontractors, agents, invitees and other
                  representatives of Contractor or its Affiliates, (iii) any
                  member, co-owner, partner, parent or other business
                  participant with the Contractor or any visitor of any such
                  Person and (iv) the directors, officers, employees and other
                  representatives of any such Person described in (i), (ii), and
                  (iii) above.

         p)       Date Data shall have the meaning given to such term in
                  Art. 40.2.

         q)       Day means a consecutive calendar day unless otherwise stated.

                                       2

<PAGE>   9

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         r)       Delivery Date means the date of delivery of the Contract
                  Object set out in Appendix C, or as varied in accordance with
                  the provisions of Art. 12 through 16.

         s)       Delivery Protocol means the document to be executed by both
                  Parties in accordance with Art. 19 upon the delivery of the
                  Contract Object.

         t)       Disputed Variation Order means a Variation Order issued in
                  accordance with Art. 16.2.

         u)       Drawings and Specifications shall have the meaning given to
                  such term in Appendix A.

         v)       Effective Date shall have the meaning given to such term in
                  the preamble.

         w)       Force Majeure means strikes, seizure, casualty loss, labor
                  disturbance, earthquakes, riots, fire, governmental action or
                  inaction, war, acts of God, named tropical storms, or any
                  other cause similar or dissimilar to the foregoing beyond the
                  reasonable control of the Party whose performance is affected
                  and which by the exercise of reasonable diligence said Party
                  is unable to prevent or provide against.

         x)       FPF Support Structure shall have the meaning given to such
                  term in Appendix A.

         y)       Framework Contract means a contract entered into by Company
                  where the obligations concerning the scope of the delivery and
                  delivery date have not been specified.

         z)       Guarantee Period means the period stated in Art. 23.2.

         aa)      Installation Agreement means that certain Installation
                  Agreement between Company and Contractor to be executed within
                  30 Days following the Effective Date, which shall relate to
                  the transportation and installation of the Contract Object.

         bb)      Materials means all items required for the Work, other than
                  Company Provided Items and working equipment.

         cc)      Party shall have the meaning given to such term in the
                  preamble.

         dd)      Parties shall have the meaning given to such term in the
                  preamble.

         ee)      Progress Milestone means the following critical timing
                  deadlines: (i) major structural steel fabrication of the FPF
                  Support Structure must begin during September 1999 and (ii)
                  the Contract Object must have fabrication completed and
                  loaded-out and ready for tow no later than March 1, 2001, such
                  exact date to be mutually agreed upon by the Parties.

         ff)      Person means any individual or entity, including, without
                  limitation, any corporation, limited liability company, joint
                  venture, joint stock company,

                                        3
<PAGE>   10

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

                  general or limited partnership, trust, agency, association,
                  organization, government authority (including any agency or
                  administrative group thereof) or other entity.

         gg)      Products shall have the meaning given to such term in Art.
                  23.6.

         hh)      Site means a place where Work is performed.

         ii)      Subcontract means an agreement entered into between Contractor
                  and a Subcontractor for the supply of goods or services in
                  connection with the Work.

         jj)      Subcontractor means a third party who has entered into an
                  agreement with Contractor for the supply of goods or services
                  in connection with the Work.

         kk)      Third Party means any party other than Company Indemnified
                  Parties and Contractor Indemnified Parties.

         ll)      Variation means a variation to the Work, Scope of Work,
                  Contract Schedule, Specifications, Drawings and Company
                  Provided Items made in accordance with the provisions of Art.
                  12 through 16.

         mm)      Variation Order shall have the meaning given to such term in
                  Appendix D.

         nn)      Work means all work which Contractor shall perform or cause to
                  be performed in accordance with the Contract, as further
                  defined by Appendix A.

         oo)      Year 2000 Compliant shall have the meaning given to such term
                  in Art 40.2.

ART. 2   CONTRACT DOCUMENTS - INTERPRETATION

2.1      The Contract Documents consist of this Fabrication Agreement and the
         following Appendices:

             Appendix A: Scope of Work
             Appendix B: Compensation
             Appendix C: Contract Schedule
             Appendix D: Administration Requirements
             Appendix E: Specifications
             Appendix F: Drawings
             Appendix G: Company Provided Items
             Appendix H: Subcontractors
             Appendix I: Company's Insurances, etc.
             Appendix J: Contractor Parent Company Guarantee
             Appendix K: Contractor's Proprietary Information
             Appendix L: Invitation to Bid
             Appendix M: Agreed Upon Exceptions and Clarifications
             Appendix N: Contractor's Bid Proposal
             Appendix O: Contractor Insurance
             Appendix P: Company Parent Company Guarantee

                                        4
<PAGE>   11
DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

2.2      References made in the Contract to the expressions stated in Art. 2.1
         are references to the content of the specific Appendix referred to,
         including such variations as may have been made in accordance with the
         provisions of Art. 12 through 16.

2.3      In the event of any conflict between the provisions of the Contract
         Documents, they shall be given priority in the following order:

         a)       this Fabrication Agreement,

         b)       all Appendices, except Appendix D, in the order as
                  aforementioned in Art. 2.1,

         c)       Appendix D.

ART. 3   REPRESENTATIVES OF THE PARTIES

3.1      Prior to commencement of the Work each Party shall appoint a
         representative with authority to act on its behalf in all matters
         concerning the Contract, and appoint a deputy to act in its stead.
         Without prejudice to Art. 8.1 first paragraph, each Party may, by
         giving 14 Days notice to the other Party, substitute a representative
         or deputy.

3.2      A representative or his deputy may delegate specific tasks to one or
         more Persons appointed by him. In such case the other Party's
         representative shall be notified of the authority given to such
         appointed Person or Persons.

3.3      Contractor shall afford Company's Representative access to the Site and
         the Work during working hours. The same access shall be afforded
         Persons authorized by Company's Representatives, provided that
         notification of such authorization has been given in reasonable time.

         If, in the opinion of Contractor, the progress of the Work is impeded
         by the presence or absence of Company's Representatives or Persons
         authorized by him, Contractor shall without undue delay submit a
         request in accordance with Art. 16.1.

PART 2   PERFORMANCE OF THE WORK

ART. 4   OBLIGATIONS OF CONTRACTOR - MAIN RULES

4.1      Contractor shall perform the Work in a professional and workmanlike
         manner in accordance with the Contract. As part of such performance
         Contractor shall:

         a)       give priority to safety in order to protect life, health,
                  property and environment, and

         b)       cooperate with Company's Representative and Persons appointed
                  by him in accordance with Art. 3.

                                       5
<PAGE>   12

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

4.2      Contractor shall take care of the Contract Object, Company Provided
         Items and Materials and shall ensure in accordance with Art. 6, that
         they are kept in good order and condition. Unless specifically agreed
         to by Company, Contractor shall not have the right to make temporary
         use of Company Provided Items or Materials to be incorporated into the
         Contract Object, other than for the purpose of fulfilling the Contract.
         Company may prohibit any temporary use of Company Provided Items.

4.3      Within the framework of Appendices A, B and C, Contractor has a duty to
         cooperate with Company and other contractors and to organize its
         operations to ensure that all activities on a Site are carried out
         efficiently and without delay. However, Contractor is under no
         obligation to subordinate its execution plan to ensure overall
         efficiency unless additional costs or schedule delays, if any, are
         reimbursed by Company to Contractor.

         However, any craft, equipment or labor required to perform such work by
         Company shall be performed by Contractor or its subcontractor if
         Contractor or subcontractor has the necessary craft, equipment or labor
         available in the shipyard, fabrication yard or manufacturing plant or
         the offshore site where the work is to be performed.

         To the extent stated in Appendices A, B or C, Company is entitled to
         perform work or let other contractors perform work on the Contract
         Object. If Company desires such work to be performed which is not
         contained in Appendices A, B or C, the provisions of Art. 12 through 16
         apply accordingly.

ART.  5  AUTHORITY REQUIREMENTS - PERMITS

5.1      Contractor shall keep himself informed of and comply with:

         a)       laws and regulations which apply on the Site and at the place
                  where the Contract Object is to be used according to the
                  Contract,

         b)       requirements and orders of classification societies and public
                  authorities,

         c)       current trade union and wage agreements.

         If laws and regulations as stated in a) above have been adopted and
         requirements and orders as stated in b) above have been issued after
         the signature of the Contract and necessitate Variations to the Work or
         its execution, and this affects Contractor's costs or progress, either
         Party may request a change in the Contract Price or Contract Schedule
         reflecting the effect of such decisions or variations. Changes in the
         way in which public authorities apply such laws or regulations
         mentioned in a) above shall be dealt with in the same way. The rules in
         Art. 12 through 16 apply accordingly.

5.2      Contractor and Company shall each obtain and maintain each required
         permit or approval as defined in Appendix A, D and G. Contractor and
         Company shall, as soon as reasonably practicable following the
         Effective Date, mutually agree upon which

                                        6

<PAGE>   13

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         permits are required, the Party responsible for obtaining each permit
         and the time period for obtaining such permits.

5.3      Company may require that Contractor submits to Company such information
         about the performance of the Work and about Contractor Indemnified
         Parties as Company is obliged to submit to public authorities.

ART. 6   DRAWING - SPECIFICATIONS - COMPANY PROVIDED ITEMS

6.1      Contractor shall make a reasonable effort to detect defects (patent
         and/or latent, discrepancies and inconsistencies ("errors") in the
         Drawings and Specifications.

         Contractor shall within seven (7) Days of detecting such defects notify
         Company of any such "errors" discovered. If Contractor does not notify
         Company of an "error" that he has discovered, and as a result, Company
         incurs direct extra costs in connection with the Work, which are not
         covered by insurance, warranties or guarantees, then all such costs
         shall be borne by Contractor. However, any and all costs or delays
         resulting from soil and environmental data and topside design details
         and all Company supplied data shall be for the account of Company.
         Contractor shall have the right to submit a request for a Variation
         Order in accordance with Art. 12 through 16 for the cost and delivery
         impact of inaccurate, incomplete, insufficient and/or incorrect Company
         supplied data.

6.2      Company will remain responsible for the correct design and fabrication
         of Company Provided Items as well as timely delivery so as to have no
         adverse effect on the Contract Schedule and/or sequencing of the Work

         Upon receipt of Company Provided Items Contractor shall make an
         immediate visual inspection and within seven (7) Days of their receipt
         give notice to Company of any "errors" discovered by such inspection.

         Within a reasonable time thereafter, and not later than the time limit
         given in Appendix G, Contractor shall carry out such examinations as
         are described in Appendix G. Contractor shall notify Company within
         seven (7) days of detecting defects of any such "errors" discovered.

         If Contractor does not notify Company of an "error" that he has
         discovered and as a result, Company incurs direct extra costs in
         connection with the Work which are not covered by insurance, or loses
         rights, warranties or guarantees, then, subject to the limitations set
         forth in Art 23, all such costs incurred shall be borne by Contractor.

6.3      Upon receipt of notice from Contractor in accordance with Art. 6.1 or
         6.2, Company shall, without undue delay, either have the necessary
         corrections made, or give Contractor instructions in accordance with
         Art. 12 through 16 as to how he shall proceed.

                                        7

<PAGE>   14

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

ART. 7   SUBCONTRACTS

7.1      Contractor shall not enter into any Subcontract concerning parts of the
         Work without the prior consent of Company, which shall not be
         unreasonably withheld. Company shall notify Contractor of its decision
         within seven (7) Days after having been asked by Contractor. However,
         such consent is not required for deliveries of work by Subcontractors
         listed in Appendix H - Subcontractors, nor for minor purchases or
         limited use of hired labor.

7.2      Contractor is responsible according to the Contract for the fulfillment
         of Subcontracts.

         If Company enters into Framework Contracts with one or more contractors
         and, subject to prior agreement with Contractor, these are assigned to
         Contractor, Company shall delay the Delivery Date if necessary due to
         the assignment to Contractor of the Framework Contracts, as agreed upon
         by the Parties, and shall bear Contractor's direct extra costs,
         provided Contractor can document that a contractor to a Framework
         Contract is unable to deliver by a deadline stated in the Framework
         Contract, or if deadlines are not stipulated in the Framework Contract,
         Contractor documents that a delivery cannot be used within the agreed
         Contract Schedule. These provisions shall, however, not apply if it can
         be shown that the delay is due to circumstances under Contractor's
         control. In other respects, the provisions in the third paragraph of
         Art. 7.2 apply to Framework Contracts assigned to Contractor after
         entry into the Contract.

         If, after entry into the Contract, Company, with prior agreement of
         Contractor, assigns a subcontract to Contractor, or appoints a
         subcontractor, and the subcontract conditions were unknown to
         Contractor at the time of entry into the Contract, then if conditions
         which were undisclosed to Contractor cause a delay in the Contract
         Schedule or result in additional costs to Contractor, then Contractor
         shall be entitled to submit a request for a Variation Order in
         accordance with Art. 12 through 16. If a subcontractor as mentioned in
         the second and third paragraphs of Article 7.2 goes into liquidation
         and the subcontract delivery in question is therefore annulled,
         Contractor is entitled to an adjustment in the Contract Schedule and
         Contract Price, pursuant to the rules in Art. 12 through 16.

7.3      Subcontractor shall state that:

         a)       the Subcontract may be assigned to Company,

         b)       Subcontractor is included in Contractor Indemnified Parties
                  with regard to the provisions of Art. 30,

         c)       Art. 22 concerning title; etc. shall apply in the relationship
                  between Contractor and the Subcontractor, and

                                        8

<PAGE>   15

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         d)       Company shall have the rights to documents and computer
                  programs stated in Art. 32 and the rights to inventions in
                  Art. 33.

         Such Subcontracts shall also contain those provisions of the Contract
         which are necessary to enable Contractor to fulfil its obligations in
         accordance with the Contract.

         However, Company is only entitled to request copies showing provisions
         of price and payment, when Company shall compensate the Subcontract on
         a reimbursable basis.

ART. 8   LABOR FOR THE WORK

8.1      Appointment, transfer or replacement of personnel described as key
         personnel in Appendix D - Administration Requirements, shall be
         approved by Company. Approval shall not be unreasonably withheld.

         Contractor shall at its own cost replace personnel who, in Company's
         reasonable opinion, conduct themselves in an improper manner or are
         unsuitable to perform their tasks.

8.2      Contractor shall at its own cost ensure that personnel performing parts
         of the Work offshore shall have previously passed a safety course and
         medical examinations, in accordance with the existing laws and
         regulations, unless the relevant public authorities have granted a
         dispensation.

ART. 9   MINERALS MANAGEMENT SERVICE (MMS) OBLIGATIONS

9.1      This project has been approved for Royalty Relief and those obligations
         to the Minerals Management Service ("MMS") to which the Company is
         committed relative to the Sunday Silence Field Development and related
         timing (i.e., Project Schedule) and cost control are of critical
         importance to the performance of the Work. Upon Company's request,
         Contractor shall assist Company in the honoring of those commitments.
         Where Contractor's assistance results in an impact on Contractor's
         Work, Contractor shall be entitled to submit a request for a Variation
         Order pursuant to Art. 12 through 16. Contractor's sole liability for
         any loss of royalty relief which is caused by Contractor's late
         performance of the Work shall be as set forth in Art. 24 and Art. 26.

ART. 10  QUALITY ASSURANCE

10.1     Contractor shall have an implemented and documented system for quality
         assurance in accordance with the requirements stated in Appendix D -
         Administration Requirements.

                                       9
<PAGE>   16

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

10.2     Company's Representative and personnel authorized by him shall,
         following reasonable notice, have the right to undertake quality audits
         and verification of Contractor's and any Subcontractors' quality
         assurance.

PART 3   PROGRESS OF THE WORK

ART. 11  CONTRACT SCHEDULE - DELAYED PROGRESS

11.1     Contractor shall perform the Work in accordance with Appendix C -
         Contract Schedule.

         If Contractor should have cause to believe that the Work cannot be
         carried out in accordance with the milestones set out in the Contract
         Schedule, he shall within seven (7) Days notify Company accordingly.

11.2     If in Contractor's opinion the Work cannot be performed according to
         Appendix C - Contract Schedule, owing to circumstances for which
         Company is to indemnify him, the provisions in Art. 16 shall apply
         accordingly. A request for a Variation Order must be presented before
         the expiration of the time limits set forth in Art. 27.1 and 28.2,
         respectively.

11.3     If in Contractor's opinion the Work cannot be performed according to
         Appendix C - Contract Schedule, for reasons for which Contractor is
         responsible, he shall within seven (7) Days after notification
         according to Art. 11.1 communicate:

         a)       the cause of the delay,

         b)       its estimated effect on the Contract Schedule and other parts
                  of the Work, and

         c)       the measures which Contractor considers appropriate to avoid,
                  recover or limit the delay.

         Company shall within seven (7) Days notify Contractor of its view of
         the information provided by Contractor in accordance with Art. 11.3 a),
         b) and c). Such notification shall not release Contractor from any of
         its obligations under Art. 11.1, Art. 24 or any other provisions of
         this Contract.

         If the measures proposed or implemented by Contractor are insufficient
         to avoid or recover the delay, then Company may require Contractor to
         take measures considered necessary. If Contractor maintains that it has
         no obligation to implement the measures required by Company, the
         variation provisions provided in Art. 12 through 16 shall apply,
         accordingly.

                                       10
<PAGE>   17

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

PART 4   VARIATIONS AND CANCELLATION

ART. 12  RIGHT TO VARY THE WORK

12.1     Company has the right to order such Variations to the Work as in
         Company's opinion are desirable.

         Variations may include an increase or decrease in the quantity,
         character, quality, kind or execution of the Work or any part thereof,
         as well as changes to the Contract Schedule.

         Nevertheless, Company has no right to order Variation work which
         cumulatively exceeds that which the Parties could reasonably have
         expected when the Contract was entered into.

12.2     When Company orders a Variation to the Work to be performed, Contractor
         shall submit within seven (7) Days an estimate to Company, unless the
         Parties agree that it is unnecessary. Company may require the
         submission of such estimate prior to ordering Variation work to be
         performed. The estimate shall contain:

         a)       a description of the Variation work in question,

         b)       a detailed schedule for the execution of the Variation work
                  showing the required resources and significant milestones.

         c)       the effect on the Contract Price, showing the rates used when
                  preparing the estimate, and

         d)       the effect on the Contract Schedule, with documentation
                  demonstrating such effect.

         Company shall pay Contractor's necessary and documented costs for
         preparing the estimates required by Company. The provisions of Art. 12
         through 15 shall apply, accordingly.

12.3     Contractor may propose a Variation to the Work in accordance with
         Art. 12.

         According to the provisions in Art. 3.3, 4.3, 5.1, 6.1, 6.3, 7.2, 11.2,
         18.3, 27.1 and 28.2 and any other applicable Articles, Contractor has
         the right to request variation in the Contract Price and/or the
         Contract Schedule.

ART. 13  EFFECTS OF A VARIATION TO THE WORK

13.1     All Contractor's obligations under the Contract also apply to
         Variations to the Work, unless otherwise agreed.

13.2     Unless otherwise agreed between the Parties, the price for Variations
         to the Work shall be determined according to the provisions set forth
         in Appendix B.

                                       11
<PAGE>   18

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

13.3     If the net effect of all Variations to the Work is such that the
         Contract Price becomes less than the original Contract Price, then
         Company shall increase the Contract Price by six percent (6%) of the
         difference.

13.4     The effects of Variation work on the Contract Schedule shall be agreed
         upon in the particular Variation Order for such work, on the basis of
         the accumulated net effect of a variation.

         Subject to the limitations which follow from Art. 12.1, Company may
         require Contractor to undertake special measures to avoid Variation
         work having an effect on the Contract Schedule, or to limit delays as
         much as possible. The provisions in Art. 12 through 16 shall apply,
         accordingly.

13.5     A Variation to the Work caused by Contractor's defective performance of
         the Work and/or Contractor's delay in the Contract Schedule shall not
         entail any variations to the Contract Price or the Contract Schedule in
         favor of Contractor.

ART. 14  ISSUE OF VARIATION ORDERS

14.1     All Variations to the Work required in accordance with the provisions
         of Art. 12 and 13 shall be made by means of a Variation Order issued by
         Company in accordance with the provisions of this Article and
         Appendix D.

         Company may also order Variations to the Work by means of a "drawing
         revision." In the context of Art. 14, 15 and 16, "drawing revision"
         means any change to Drawings or Specifications where the change is
         clearly identified and has been submitted to Contractor in accordance
         with such special procedures as are set forth in Appendix D -
         Administration Requirements.

14.2     A Variation Order shall be expressly identified as such and be issued
         on a prescribed form. It shall contain a complete description of the
         Variation work and the schedule for its execution, together with the
         effects on the Contract Price and the Contract Schedule, so far as
         practicable, and the effects, if any, on the provisions of the
         Contract. Such effects as are not recorded on the original Variation
         Order shall be recorded in an addendum to it.

ART. 15  CONSEQUENCES OF VARIATION ORDERS - DISPUTES ABOUT CONSEQUENCES

15.1     On receipt of a Variation Order or a "drawing revision" as described in
         Art. 14.1, Contractor shall implement it without undue delay, even if
         the effect of the Variation Order or "drawing revision" on the
         Contract Price, the Contract Schedule and other provisions of the
         Contract has not yet been agreed.

15.2     If the Parties agree that there is a Variation, but disagree as to the
         Variation's effect on the Contract Price, then Company shall pay
         Contractor provisional compensation

                                       12
<PAGE>   19

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         calculated in accordance with Appendix B. Payment shall be made in
         accordance with the provisions of Art. 20. The undisputed amount shall
         be due for payment 30 Days after Company receives the invoice.

         Compensation paid for the Variation work for which there is a dispute
         as to the Variation's effect on the Contract Price shall be considered
         final unless, within six (6) months of the issue of the Variation Order
         by Company, Contractor has begun dispute resolution proceedings as
         provided for in Art. 37.2 or Company and Contractor agree on an
         alternate sum to provisional compensation paid by Company pursuant to
         Art. 15.2.

         If a price for the Variation work is decided other than the
         compensation paid in accordance with the first paragraph of this Art.
         15.2, interest shall be paid on the difference between the compensation
         paid and the final price and shall accrue at the rate of 10% per annum.

         If Contractor has presented a request for a Variation Order which
         satisfies the conditions in the third paragraph of Art. 16.1, interest
         shall begin to be charged from the date when the work would have been
         paid for if it had been part of the Work, but no earlier than 30 Days
         after the presentation of the request for the Variation Order. Interest
         shall similarly accrue on amounts that are not disputed between the
         Parties. If Company issues a Variation Order without any previous
         request having been presented for the Variation work, interest shall
         begin to accrue from the due date according to the first paragraph.

15.3     If the Parties disagree as to the effect that a Variation Order will
         have on the Contract Schedule, then the views of both Parties shall be
         recorded on the Variation Order.

         If Company requires implementation of the measures stated in Art. 13.4,
         to avoid or limit the delay which, in the opinion of Contractor, will
         result from a variation to the Contract Schedule, then the provisions
         of Art. 15.2 shall apply accordingly. Company shall in such case
         require such measures to be taken in accordance with the provisions of
         Art. 16 regarding disputed variations.

15.4     Neither Company's payment nor Contractor's implementation of a
         Variation Order or a "drawing revision" shall affect the Parties'
         possible claims for variations to the Contract Price or the Contract
         Schedule.

ART. 16  DISPUTE AS TO WHETHER A VARIATION TO THE WORK EXISTS -
         DISPUTED VARIATION ORDER

16.1     If Company requests performance of specific work which in Contractor's
         opinion is not part of its obligations under the Contract, then
         Contractor shall request Company to issue a Variation Order and
         shall, within seven (7) Days, prepare an estimate in accordance with
         Art. 12.2. In the case of a "drawing revision" as described in

                                       13
<PAGE>   20

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         Art. 14.1, this Art. 16.1 shall apply only if Contractor requests a
         variation in the Contract Price or Contract Schedule as a result of the
         revision.

         If Contractor has not presented a request for a Variation Order within
         seven (7) Days after Company has requested the work to be performed,
         then Contractor loses the right to consider the work as Variation work
         in accordance with Art. 12.

         A request for a Variation Order shall be presented by means of a
         prescribed form known as a Variation Order request, such form which is
         in Appendix D. It shall contain a specified description of the work the
         request relates to and the effects which in Contractor's opinion it
         will have on the Contract Schedule and the Contract Price.

         If Contractor presents a request which, in substance; is a request for
         a Variation Order without using the above mentioned form, Company is
         entitled to treat the request as a request for a Variation Order. In
         that case, Contractor shall be informed in writing within seven (7)
         Days.

16.2     When Contractor has made a request within the time limit specified in
         Art. 16.1 and Company agrees with such request, Company shall, within
         fourteen (14) Days, issue a Variation Order in accordance with the
         provisions of Art. 14. If Company is of the opinion that the work
         referenced in Contractor's request for a Variation Order is a part of
         the Work, it shall be expressly recorded that the Variation Order is
         disputed ("Disputed Variation Order"). A Disputed Variation Order shall
         be expressly identified as such and shall be issued on a special form,
         which shall identify the work in dispute between the Parties and state
         Company's reason for regarding the Variation Order as disputed. Upon
         receiving a Disputed Variation Order, Contractor shall implement it
         within seven (7) Days.

16.3     If Contractor is of the opinion that it is entitled to a Variation to
         the Work because of delay, or actions by Company or extra measures, or
         other changes resulting from breach of Contract by Company, or from
         Force Majeure, the provisions of this Art. 16 shall apply accordingly.
         A request for a Variation Order must be made before the expiration of
         the time limits stated in Art. 27.1 and Art. 28.2, respectively.

ART. 17  CANCELLATION

17.1     Company may by written notice to Contractor cancel the Contract with
         the consequence that the performance of the Work ceases.

17.2     Following such cancellation, Company shall pay:

         a)       the unpaid balance due to Contractor for that part of the Work
                  already performed.

         b)       all costs incurred by Contractor and its Subcontractors in
                  connection with Materials and Services ordered prior to
                  receipt of the notice of cancellation by Contractor, and
                  compensation for work performed on such Materials prior to

                                       14
<PAGE>   21

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

                  the said date, provided that such costs are not covered by
                  payment under Art. 17.2 a).

         c)       all necessary cancellation charges and administration costs
                  incurred by Contractor in connection with the cancellation,

         d)       Contractor's and Subcontractors' other expenses directly
                  attributable to an orderly closeout of the Contract,
                  calculated as far as possible in accordance with the
                  provisions of Art. 13.2.

         Payment shall be made in accordance with the provisions of Art. 20.

17.3     In addition to the amounts stated in Art. 17.2, Company shall pay,
         within 30 Days after receiving an invoice, a cancellation fee equal to
         the lesser of:

         a)       2% of the Contract Price, or

         b)       4% of the part of the Contract Price which is not paid at the
                  date of cancellation and which shall not be paid pursuant to
                  Art. 17.2 a).

         Company shall only be entitled to deduct from the cancellation fee such
         claims as have been presented to Contractor prior to the date of
         cancellation and have been accepted by Contractor.

17.4     Contractor shall, in accordance with Company's instructions, make its
         best efforts to cancel Subcontracts on terms acceptable to Company. If
         Company cannot accept the cancellation terms, then Contractor shall
         assign such Subcontracts to Company.

         If Company cancels the Contract, all of Contractor warranty obligations
         on the Work not yet performed will cease and Contractor's Performance
         Guarantee shall be rendered null and void as to such uncompleted Work
         on the date of such cancellation, and such Performance Guarantee shall
         be returned to Contractor within 30 Days of such cancellation. However,
         all of Contractor warranty obligations and Contractor's Performance
         Guarantee as to all Work completed prior to the cancellation by Company
         shall remain in full force and effect subsequent to any such
         cancellation.

17.5     The Parties shall execute a Delivery Protocol stating each Party's view
         of the percentage of the Contract Object and the Work delivered and
         completed, calculated in accordance with the principles of progress
         measurement stated in the Contract. Company shall also issue a
         Completion Certificate which reflects the Delivery Protocol. The
         provisions of Art. 19 shall apply accordingly.

         Contractor shall deliver copies of all plans, drawings, specifications
         and other documents which Company is entitled to use in accordance with
         Art. 32 and 33.

17.6     Company shall, at its own cost, remove the Contract Object, Materials
         and Company Provided Items from Contractor's Site.

                                       15
<PAGE>   22

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         If such removal is not done within 60 Days, then Contractor may, having
         first given notice to Company, remove them to a suitable location for
         storage at Company's cost and risk. Contractor shall, until the
         Contract Object, Materials and Company Provided Items have been
         removed, keep them in a safe manner at Company's cost and risk.

ART. 18  COMPANY'S RIGHT TEMPORARILY TO SUSPEND THE WORK

18.1     Company may temporarily suspend the performance of the Work, by giving
         notice to Contractor.

         The notice shall specify which part of the Work shall be suspended, the
         effective date of the suspension and the expected date for resumption
         of the Work. Furthermore, it shall state the mobilization plan and any
         support functions which shall be maintained while the Work is
         suspended.

         Contractor shall resume the Work after notification by Company. The
         date of resumption of the Work shall be determined with due
         consideration of the mobilization plan, and the support functions that
         have been maintained during the suspension.

18.2     Company shall compensate Contractor for all necessary expenses arising
         from:

         a)       demobilization of personnel and equipment,

         b)       safeguarding the Contract Object, Company Provided Items and
                  related Materials and equipment,

         c)       personnel, Subcontractors and equipment which must be kept
                  available in accordance with the mobilization plan,

         d)       moving the Contract Object, if necessary, so that it does not
                  interfere unreasonably with Contractor's other activities, and

         e)       other expenses incurred by Contractor as a result of
                  suspension of the Work.

         Contractor's claim for work performed shall be calculated in accordance
         with Art. 13.2.

18.3     If suspension of the Work affects the Contract Schedule or if
         Contractor claims that it does, then the provisions of Art. 12 through
         16 concerning variations to the Contract Schedule and the Contract
         Price shall apply accordingly.

PART 5   DELIVERY AND PAYMENT

ART. 19  DELIVERY AND COMPLETION OF THE WORK

19.1     The Delivery Date and delivery of the Contract Object shall occur when
         (i) the Parties jointly, upon Contractor's request, execute a Delivery
         Protocol in a form substantially

                                       16
<PAGE>   23

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         similar to that set forth in Appendix D, (ii) the Contract Object has
         been completed in all material respects and has passed the tests
         specified in the Contract, and (iii) the Contract Object is ready for
         tow.

         The Delivery Protocol shall be executed even if minor parts of the Work
         remain incomplete, provided that such remaining parts do not have
         practical significance for the use of the Contract Object, or for later
         construction work to be performed by other contractors.

19.2     The Delivery Protocol shall be executed when the conditions set forth
         in Art. 19.1 have been met, provided that Contractor has requested the
         execution of such Delivery Protocol no earlier than 30 Days before and
         no later than two (2) Days before the proposed date of execution of
         such Delivery Protocol.

         The Delivery Protocol shall contain a thorough list of any outstanding
         items of the Work, and information regarding when such items shall be
         complete. When the Parties disagree, both views shall be recorded in
         the Delivery Protocol.

         The Delivery Protocol shall be dated and signed by both Parties.

19.3     Company shall issue the Completion Certificate for the Work, as defined
         by Appendix A, Scope of Work, on the date the Delivery Protocol is
         executed. The issuance by the Company of the Completion Certificate
         shall be expressly conditioned upon the satisfactory completion by the
         Contractor of the outstanding Work items as outlined in the Delivery
         Protocol. Further, the issuance of the Completion Certificate shall in
         no way relieve or release Contractor from its obligations to perform
         guarantee Work and/or Work yet to be completed under the terms of this
         Contract.

19.4     If the Contract requires parts of the Contract Object to be delivered
         progressively, then the provisions of Art. 19.1, 19.2 and 23 apply
         accordingly to deliveries of such parts; provided, however, that
         progressive delivery of parts of the Contract Object shall not act to
         extend the Guarantee Period set forth in Art. 23.2 and 23.3.

ART. 20  PAYMENT OF THE CONTRACT PRICE, INVOICING AND AUDIT

20.1     Company shall pay the Contract Price to Contractor within the time
         limits and in accordance with the provisions stated in this Article and
         elsewhere in the Contract. Company has no obligation to pay until
         Contractor has submitted a guarantee in accordance with Art. 21.

         The Parties agree that, consistent with the agreed upon payment
         schedule and without reducing Company's duty to pay Contractor for all
         Work performed by Contractor, Company shall not be required to pay more
         than US$8 million in 1999 for the Work under this Contract, with the
         remainder of the amounts otherwise due to Contractor

                                       17
<PAGE>   24
DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         for 1999 to be invoiced on or before January 1, 2000 and payable
         thereafter within 30 Days in accordance with Art. 20.3.

20.2     Unless otherwise prescribed in Appendix B - Compensation, the
         following provisions shall apply to invoicing:

         a)       The cut-off date for data-collection and invoicing for the
                  Work is the last Sunday in each calendar month.

         b)       Within ten (10) Days of a cut-off date, Contractor shall
                  submit to Company an invoice for the part of the Contract
                  Price payable in respect of Work performed up to that cut-off
                  date.

         c)       The invoice shall be prepared in accordance with the
                  provisions of Appendix B - Compensation, and Art. 12 through
                  16. Documentation necessary for control of the invoiced amount
                  shall be appended.

20.3     Company shall, within 30 Days after receipt of an invoice which
         satisfies the requirements in Art. 20.2, pay the undisputed amount due
         to Contractor according to the invoice. Unless otherwise provided for
         in the Contract, the following deductions may be made from the payment:

         a)       any previous payments on account to Contractor which relate
                  to, or directly concern, the work covered by the invoice,

         b)       such parts of the invoiced amount as are insufficiently
                  documented or otherwise disputed, provided Company, within ten
                  (10) Days following receipt, specifies what documentation is
                  considered insufficient and/or what the dispute concerns,

         c)       all amounts due to Company from Contractor, provided that
                  Company is entitled to make such deductions in accordance with
                  the Contract.

20.4     Within 90 Days after issue of the Completion Certificate, Contractor
         shall submit its proposal for the final account. The proposal shall
         contain a breakdown of the total compensation for the Work, including
         all claims to be made by Contractor, less any amounts due to Company.
         The proposal shall contain documentation relating to each item included
         in the breakdown.

         Claims not included in the proposed final account cannot be submitted
         later by Contractor. This does not apply to compensation for Work
         performed after issue of the Completion Certificate.

         Within 90 Days of receiving the proposed final account, Company must
         notify Contractor of any objections to the proposal. Company must state
         the grounds for its objections. If Company does not object within the
         time limit, Contractor's proposal shall be regarded as accepted.

                                       18
<PAGE>   25

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

20.5     Company is entitled to audit at Contractor's and its Subcontractor's
         premises all payments for reimbursable work to Contractor and its
         Subcontractors. Company's right to audit does not apply to a
         Subcontractor where the Subcontract entails minor purchases and limited
         use of hired labor.

         Contractor may require the audit to be performed by a neutral auditor
         where he can show that there is a possibility of confidential
         information, or information which is not relevant for the purposes of
         the audit, being disclosed to the wrong parties.

         Company is entitled to audit during the period of Contract and for up
         to 2 years after the end of the year of issue of the Completion
         Certificate.

         Payment shall not affect Company's audit rights. If charges are proven
         incorrect, then a new account shall be prepared, whether or not this
         is in the favor of Contractor.

ART. 21 GUARANTEE

21.1     As soon as reasonably practicable following the Effective Date but in
         no event longer than 14 regular business days, Contractor shall cause
         Modec, Inc. and FMC Corp. to execute a guarantee of Contractor's
         obligations under the Contract, such guarantee to include material
         terms which are substantially similar to the material terms set forth
         in Appendix J - Contractor Parent Company Guarantee. Further,
         Contractor represents and warrants that Modec Inc. and FMC Corp. have
         agreed to and will execute such guarantee.

21.2     As soon as reasonably practicable following the Effective Date but in
         no event longer than 14 regular business days, Company shall cause
         Leviathan Gas Pipeline Partners L.P. to execute a guarantee of
         Company's obligations under the Contract, such guarantee to include
         material terms which are substantially similar to the material terms
         set forth in Appendix P - Company Parent Company Guarantee. Further,
         Company represents and warrants that Leviathan Gas Pipeline Partners
         L.P. have agreed to and will execute such guarantee.

21.3     The guarantees referenced in Art. 21.1 and 21.2 above shall be valid
         until the end of the Guarantee Period.

ART. 22  TITLE TO THE CONTRACT OBJECT-RIGHT TO DEMAND DELIVERY

22.1     Title to the Contract Object shall pass to Company progressively as the
         Work is performed and Contractor is compensated accordingly. Title to
         Materials passes to Company when Contractor is paid for such Materials
         by Company.

         As soon as Materials and Company Provided Items arrive at a Site,
         Contractor shall mark them with an identification number and Company's
         name, and as far as possible, shall keep them separate from other
         items.

                                       19
<PAGE>   26

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

22.2     During the performance of the Work and on delivery and only with
         respect to payments which have been made by Company, Contractor agrees
         that the Contract Object, Materials and all other items owned by
         Company shall be free and clear of all liens, attachments, encumbrances
         and rights whatsoever, incurred prior to or concurrently with the
         performance and delivery of the Work to Company, other than those for
         which Company is responsible. Further, and subject to the restrictions
         in the preceding sentence, CONTRACTOR SHALL DEFEND, INDEMNIFY AND SAVE
         COMPANY HARMLESS FROM AND AGAINST ANY AND ALL LOSSES RESULTING DIRECTLY
         OR INDIRECTLY FROM SUCH LIENS AND/OR SIMILAR LEGAL PROCESS AND/OR
         ATTACHMENTS.

22.3     Subject to Art. 22.1, Company shall have the right to register its
         title to the Contract Object, Company Provided Items, Materials and
         the Contract. Contractor shall, at Company's cost and without undue
         delay, execute and deliver to Company such documents, and take such
         actions as Company requires to effect such registration, including
         ensuring, that title to deliveries by Subcontractors be so registered,
         if Company cannot do so itself.

22.4     If Contractor claims, based on nonpayment by Company of disputed
         amounts under the Contract, that Contractor is entitled to refuse to
         deliver the Contract Object, Materials, or other items to which Company
         claims it is entitled under the Contract, then Company may in all cases
         demand delivery and delivery shall be immediate in return for:

         a)       payment of the outstanding amount due to Contractor under the
                  Contract, insofar as the amount is not in dispute, and

         b)       a guarantee issued by Company for any further amounts which
                  Contractor maintains are due under the Contract, but which
                  Company considers it has no obligation to pay.

ART. 23  CONTRACTOR GUARANTEE - ACCEPTANCE CERTIFICATE

23.1     With the execution of consumable items and excepting normal wear and
         tear, Contractor guarantees and warrants the performance of the Work.
         Contractor also guarantees and warrants that Materials delivered by it
         for incorporation into the Contract Object are new, and that any
         engineering performed by Contractor will be in accordance with the
         Drawings and Specifications and industry standards for the oil and gas
         industry. Contractor guarantees and warrants that all of its equipment
         is in good working order and condition, that all of Contractor's
         personnel are trained and capable of operating and shall operate such
         equipment and perform the Work in a safe and workmanlike manner.

         Contractor hereby warrants and guarantees the Work to the extent that
         Contractor will repair or replace at Contractor's own expense, any
         defects in such workmanship. Contractor also guarantees and warrants
         that the Contract Object will conform during

                                       20
<PAGE>   27

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         the Guarantee Period to the Drawings and Specifications which are valid
         at the time of delivery (final documentation). This guarantee does not
         apply to Company Provided Items unless required by Art. 6.1 and 6.2.

         Contractor's liability for defects covered by the guarantee shall be
         determined in. accordance with the provisions of Art. 25.

23.2     The Guarantee Period begins on the date of signing of the Delivery
         Protocol. It expires, unless otherwise extended pursuant to Art. 23.3,
         on the first occurring of the following times:

         a)       15 months from the signing of the Delivery Protocol, or

         b)       15 months from the date Company has taken over the Contract
                  Object in accordance with the Contract, where the conditions
                  for signing the Delivery Protocol in accordance with Art. 19.1
                  have not been fulfilled.

         Notwithstanding the foregoing, Contractor shall provide an extended
         limited warranty for the FMC Spring Tensioners recommended for use by
         Contractor for the duration of the first installation or ten (10)
         years, whichever comes first. The warranty will cover design,
         workmanship and materials used in the Spring Tensioner. This warranty
         includes an annual inspection by the manufacturer's technician,
         replacement of all parts integral to the tensioner and all required
         maintenance. Additionally, if Company determines through the
         operational performance of the Spring Tensioners that the system does
         not functionally satisfy the design expectations and preinstallation
         test results, then subject to Art. 25.4, Contractor shall, at its
         option and its own cost, either repair the existing system back to a
         fully functional system, or remove and replace the entire system, at no
         cost to Company, with an alternate system that meets the operational
         requirements. Company shall have the opportunity to review and approve
         the installation and/or repair procedures, such approval which shall
         not be unreasonably withheld.

23.3     In case Contractor performs guarantee work during the Guarantee Period,
         he guarantees those parts of the Work affected by the guarantee work.
         This guarantee applies for 15 months after the date of completion of
         the guarantee work. The length of the guarantee for such parts of the
         Work shall, however, under no circumstances extend beyond 24 months
         after completion of the first guarantee work.

23.4     Contractor shall, to the maximum extent reasonably possible, obtain
         guarantees and warranties from its subcontractors, vendors and
         suppliers regarding all material manufactured and/or supplied by those
         parties and incorporated into, attached to, or in anyway affixed to or
         used in connection with the Work and the components of that material
         that (i) provide the same coverage as the guarantees and warranties
         given by Contractor in this Art. 23, (ii) are freely assignable to, or
         directly enforceable by, Company, and (iii) provide for prompt
         recovery, repairs, or replacement and

                                       21
<PAGE>   28

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         installation services for non-compliant items. Contractor shall assign
         such guarantees and warranties to Company and shall assist and
         cooperate fully with Company in seeking remedies thereunder, except
         that no provision of this Art. 23 shall obligate Contractor to join
         Company in litigation to enforce Company's or Contractor's rights under
         said supplier warranties. Assignment of any warranties and guarantees
         pursuant to this Art. 23.4 shall not limit, alter or waive any rights
         of Company under this Contract or otherwise modify the obligations of
         Contractor under this Contract.

         Company shall be entitled to enforce the guarantees given by
         Subcontractors, where such guarantees are more beneficial to Company
         than Contractor's guarantee pursuant to this Article.

23.5     Company shall issue the Acceptance Certificate when all the Work, as
         defined by Appendix A - Scope of Work to this Contract and Appendix A -
         Scope of Work to the Installation Agreement, has been completed.
         Issuance of the Acceptance Certificate does not in any way relieve or
         release Contractor from obligations to perform guarantee work during
         the Guarantee Period pursuant to Art. 23.2.

23.6     Contractor hereby represents and warrants that all applicable
         materials, supplies and products, including but not limited to,
         equipment, software, hardware, microprocessing chips, other data
         processing devices and services, and parts and components thereof
         (collectively the "Products"), supplied or furnished by Contractor are
         and will be Year 2000 Compliant.

         This representation and warranty shall survive until the earlier of 24
         months or upon termination of this Contract. In the event that such
         warranty compliance requires the acquisition of additional Products,
         the expense for any such associated or additional acquisitions which
         may be required (including, without limitation, data conversion tools)
         shall be borne exclusively by Contractor.

23.7     The remedies provided in this Contract between Company and Contractor
         shall be exclusive and in lieu of any other remedies with respect to
         the subject matter available to the parties, and ANY IMPLIED WARRANTIES
         OF FITNESS FOR PURPOSE, MERCHANTABILITY AND OTHER IMPLIED OR STATUTORY
         REMEDIES (EXCLUDING WARRANTIES OF TITLE) WHICH ARE INCONSISTENT WITH
         THIS CONTRACT ARE EXPRESSLY WAIVED BY COMPANY. Contractor makes no
         other warranties, either express or implied thereof, except as
         expressly set forth in this Contract.

PART 6   BREACH OF CONTRACT

ART. 24 CONTRACTOR'S DELAY

24.1     Save what is stated in Art. 11 concerning delayed progress, delay
         occurs when Work prescribed in the Contract Schedule has not been
         completed in accordance with the Contract.

                                       22
<PAGE>   29

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

24.2     If:  (a) a claim, demand or lawsuit is instituted by any Third Party
                  against Company or Contractor based upon the design or
                  specifications of the Contract Object, Materials or similar
                  claims, and such claim, demand or lawsuit results in any
                  deadline in the Progress Milestones or the Delivery Date as
                  set forth on the Contract Schedule being missed, or

              (b) the Work is delayed for reasons within Contractor's or
                  Contractor Indemnified Parties' control causing any deadline
                  in the Progress Milestones or the Delivery Date as set forth
                  on the Contract Schedule to be missed,

         then a default by Contractor shall be deemed to have occurred, and the
         following shall apply accordingly:

                     (i)   in the event the September 30, 1999 Progress
                           Milestone is missed, Contractor shall pay daily
                           liquidated damages in the amount of 0.20% of the
                           Contract Price per Day until the earlier of the Day
                           the Work which should have been completed on or
                           before such Progress Milestone is completed or until
                           the maximum cumulative liability for liquidated
                           damages has been paid in accordance with Art. 24.4;

                     (ii)  in the event the March 1, 2001 Progress Milestone is
                           missed, Contractor shall pay daily liquidated damages
                           in the amount of 0.10% of the Contract Price per Day
                           until the earlier of the Day the Work which should
                           have been completed on or before such Progress
                           Milestone is completed or until the maximum
                           cumulative liability for liquidated damages has been
                           paid in accordance with Art. 24.4.

24.3     If a default as described in Art. 24.2 has occurred and Company is
         subjected to a loss in whole or in part of royalty relief for the
         Sunday Silence project due to such breach, then within seven (7) Days
         of losing such royalty relief, Company shall elect to either: (1) waive
         any further payment of the liquidated damages imposed by Art. 24.2
         against Contractor and continue to operate under the terms of the
         Contract, (ii) terminate the Contract without further assessment of
         damages, pay for and take immediate possession of any and all
         Materials, and pay Contractor for the Work completed prior to the time
         of the termination, or (iii) suspend Work pursuant to Art. 18.1 and
         18.2, during which time no liquidated damages will be assessed against
         Contractor.

         Further, if (a) a default has occurred pursuant to Art. 24.2(i), (b)
         Company has not lost the royalty relief in whole or in part for the
         Sunday Silence project, and (c) Company has not elected to terminate
         the Contract pursuant to Art. 24.3(ii), then if Contractor meets the
         March 1, 2001 Progress Milestone, an amount equal to the amount of
         liquidated damages previously paid by Contractor in accordance with

                                       23
<PAGE>   30

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         Art. 24.2(i) shall be reimbursed by Company to Contractor upon the
         completion of the Work and Company waives any night to assess any
         liquidated damages against Contractor under Art. 24.2(i).

24.4     Notwithstanding the above, Contractor's cumulative liability for
         liquidated damages under Art. 24.2 is limited to 10% of the Contract
         Price. The assessment of liquidated damages and the right to terminate
         as described in Art. 24 and 26 shall be Company's sole and exclusive
         remedy for late completion.

         Accrued liquidated damages and the reimbursement of liquidated damages
         shall be settled in connection with the final account, in accordance
         with Art. 20.4.

24.5     Upon Contractor's reasonable request, Company shall be obligated to
         provide Contractor with verbal updates as to Company's communications
         and negotiations with the MMS regarding the royalty relief referenced
         in Art. 24.3. Additionally, Contractor may assist Company in such
         negotiations with the MMS.

24.6     In addition to the provisions of Art. 24.3, Company may terminate the
         Contract in accordance with Art. 26 due to delay. The provisions stated
         in Art. 11, Art. 24 and Art. 26 are Company's sole remedies against
         Contractor's delay.

ART. 25  CONTRACTOR'S DEFECTS AND GUARANTEE LIABILITY

25.1     If the Contract Object has a defect when delivered to Company, whether
         stated in the Delivery Protocol or not, or if a defect arises for which
         Contractor is liable under its guarantee in accordance with Art. 23,
         then Contractor is responsible for the defect in accordance with the
         provisions of this Article.

         Notwithstanding the foregoing paragraph, Contractor is, however, liable
         for a defect only if Company has given notice of the defect, within 14
         Days after having discovered the defect. Such notice must, in any case,
         have been given at the latest before the expiration of the Guarantee
         Period. If the notice concerns defects in guarantee work, then it must
         have been given before the expiration of the period set forth in Art.
         23.3. All notices to Contractor under this Article shall be in writing.

         The notice to Contractor shall contain a specific description of the
         defect.

25.2     When Contractor is responsible for a defect, it shall, at its own cost
         and within six (6) Days, rectify it, commence rectification, or submit
         a rectification plan to Company for Company's review and comment.

         Contractor shall notify Company of which measures it intends to apply
         and the time schedule for rectification. Company shall notify
         Contractor of its views on the rectification plans without undue delay.
         Company shall not unreasonably prevent Contractor from performing the
         planned rectification.

                                       24
<PAGE>   31

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

25.3     If Contractor is unable to rectify a defect within the time schedule as
         originally agreed upon by the parties pursuant to Art. 25.2, then
         Company shall be entitled to rectify the defect itself or to engage a
         Third Party to do so. In such case, Contractor shall pay the necessary
         costs of rectification, provided Company acts in a reasonable manner.
         However, in no case shall the amount Contractor is obligated to pay be
         more than the sum of Contractor's good faith estimated amount it would
         have cost Contractor to rectify the defect plus 15%.

         If in accordance with this Art. 25.3, the rectification work is
         performed by parties other than Contractor or if the work is left
         undone, Contractor shall not be obligated to guarantee such
         rectification work.

25.4     Contractor's liability for rectification work and for costs under Art.
         25.3 is limited to 15% of the Contract Price, above which amount
         Company agrees to release and hold harmless Contractor.

         Contractor is under no circumstances liable for costs relating to:

         a) dismantling of other objects than the Contract Object to provide
            access to the Contract Object,

         b) board and lodging offshore,

         c) transport to, from and at the offshore location,

         d) heavy lift operations offshore,

         e) extra costs associated with guarantee work performed below the water
            line.

ART. 26  TERMINATION DUE TO CONTRACTOR'S BREACH OF CONTRACT

26.1     Company is entitled to terminate the Contract with immediate effect by
         notifying Contractor when:

         a)       Company has become entitled to be paid maximum liquidated
                  damages in accordance with Art. Art. 24.2, or

         b)       Contractor is in material breach of a material provision of
                  the Contract and has not agreed to implement reasonable
                  actions to cure the breach within 14 Days, or

         c)       Contractor becomes insolvent or stops its payments, or

         d)       a default by Contractor pursuant to Art. 24.3 has occurred,
                  subject to the limitations set forth in Art. 24.3.

                                       25
<PAGE>   32

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

26.2     Upon termination of the Contract, Company is entitled to take over from
         Contractor the Contract Object, Materials, Company Provided Items,
         Subcontracts, documents and other rights necessary to enable Company to
         complete the Contract Object, either by itself or with the help of
         others.

         Company is entitled either by itself or with the assistance of any
         Third Party, to use Contractor's Site, equipment, tools, drawings, etc.
         as necessary to complete the Contract Object, provided such use is
         compensated for and is of a limited duration, and provided further that
         business secrets, know-how and other information which Company or such
         Third Party acquire shall be used only for completion of the Contract
         Object. The use of any Subcontractor site shall first require the
         consent of said Subcontractor.

         Contractor is entitled to be paid for Work actually performed and for
         plant and equipment taken over by Company in accordance with the first
         paragraph of this Art. 26.2, less any amounts due from Contractor to
         Company.

26.3     When the Contract is terminated, Company shall also be entitled to
         enforce one or more of the following claims:

         a)       Company may claim damages for delay in the form of liquidated
                  damages in accordance with the provisions of Art. 24.2; and

         b)       Company may claim damages for defects and other breaches of
                  Contract, subject to the limitations set forth in Art. 25.4.

         Notwithstanding anything to the contrary contained in this Contract,
         Contractor's total liability (under this Art. 26.3, Art. 24, Art. 25
         and the responsibility for carrying out measures requested under Art.
         11.4) shall in no circumstances exceed 25% of the Contract Price.
         Notwithstanding any other provision of this Contract to the contrary,
         such limitation of liability shall encompass all liabilities under such
         Articles, whether under contract at law, in equity or in admiralty.

26.4     In all cases where Company takes over the Work from Contractor,
         Contractor cannot guarantee proper completion and/or quality of the
         Work, and, therefore Contractor's warranty obligations cease with
         respect to any Work not completed at the point Company takes over the
         Work.

ART. 27  COMPANY'S BREACH OF CONTRACT

27.1     If Company is late in delivering Company Provided Items, Drawings,
         Specifications or access to installation site, or is in breach of any
         other material obligations under the Contract, then Contractor may be
         entitled to an adjustment of the Contract Schedule and/or the Contract
         Price in accordance with the provisions of Art. 12 through 16, as
         applicable. Such adjustment shall reflect the actual costs of the delay
         caused to Contractor by Company's breach of Contract.

                                       26
<PAGE>   33

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         Contractor has a corresponding right with respect to delay caused by
         defects, discrepancies and inconsistencies in Company Provided Items,
         Drawings or Specifications. Nevertheless, such adjustment shall not be
         made insofar as the delay is due to Contractor not fulfilling its
         obligations in accordance with Art. 6.

         A Variation Order shall be issued in accordance with Art. 12 through 16
         in respect of adjustments in the Contract Schedule, Contract Price and
         other consequences resulting from Company's breach of Contract.
         Contractor loses its right to request a Variation Order if it has not
         made such request within 30 Days after discovery of the breach of
         Contract.

27.2     Contractor is entitled to terminate the Contract with immediate effect
         by notifying Company when:

         a)       Company has failed to make payment of an undisputed amount to
                  Contractor within 30 Days of such payment becoming due,

         b)       Company is in substantial breach of the Contract and has not
                  agreed to implement reasonable actions to cure the breach
                  within 14 Days, or

         c)       Company becomes insolvent.

PART 7   FORCE MAJEURE

ART. 28  EFFECTS OF FORCE MAJEURE

28.1     Except for Company's obligation to make payment in accordance with Art.
         20, a Party shall not be considered to be in default in the performance
         of its obligations to the extent that it proves that such performance
         has been prevented by Force Majeure. The Party affected by Force
         Majeure shall give written notice to the other Party as soon as
         possible, but not later than seven (7) days after having been so
         affected. Failure to give this notice shall preclude such Party from
         claiming Force Majeure.

28.2     Within 14 Days after a Force Majeure condition affecting Contractor's
         ability to perform its operations hereunder has ended, Contractor shall
         present any claim for adjustment of the Delivery Date with particulars
         of such claim. Such proposal shall state additional time necessary for
         repairs and other remedies, or for remobilization of personnel and
         equipment, and measures by Contractor to accelerate performance of the
         affected portion of the Work, or otherwise to mitigate the effect of
         Force Majeure.

28.3     If Company claims a Force Majeure situation and as a result is
         prevented from delivering the Company Supplied Items or otherwise
         carrying out other of its obligations to Contractor, Contractor shall
         have the right to submit a request for a Variation Order pursuant to
         Art. 12 through 16 for such additional compensation and extension of
         the Delivery Date as Contractor can document it is entitled to by
         reason of Company's inability to carry out its obligations to
         Contractor.

                                       27
<PAGE>   34

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

28.4     The Party prevented from performing by the Force Majeure condition
         shall resume performance as soon as reasonably possible after the Force
         Majeure condition ceases.

28.5     If a Force Majeure situation lasts without interruption for 90 Days or
         more, then each Party shall have the right to cancel the Contract, by
         notice to the other Party. The provisions of Article 17.2, 17.4, 17.5
         and 17.6 shall apply accordingly.

28.6     WHEN THE DELIVERY DATE WHICH WOULD HAVE APPLIED IN THE ABSENCE OF FORCE
         MAJEURE IS REACHED AND FORCE MAJEURE STILL CONTINUES, COMPANY IS
         ENTITLED TO DEMAND DELIVERY OF THE CONTRACT OBJECT. COMPANY SHALL, IN
         ADDITION, ISSUE A VARIATION ORDER IN ACCORDANCE WITH ART. 12 THROUGH
         16, AS APPLICABLE.

28.7     A FAILURE OF THE PRODUCTS CAUSED BY OR CONTRIBUTED TO BECAUSE SUCH
         PRODUCTS IS NOT YEAR 2000 COMPLIANT AS DEFINED IN ART. 40 IN THIS
         CONTRACT IS NOT TO BE CONSIDERED AS A FORCE MAJEURE EVENT.

PART 8   LIABILITY AND INSURANCES

ART. 29  LOSS OF OR DAMAGE TO THE CONTRACT OBJECT OR COMPANY PROVIDED ITEMS

29.1     If loss of or damage to the Contract Object occurs between the start of
         the Work until the time when the Delivery Protocol has been signed or
         should have been signed in accordance with Art. 19.1 and 19.2,
         Contractor shall carry out necessary measures to ensure that the Work
         is completed in accordance with the Contract. The same applies if any
         loss of or damage to Materials or Company Provided Items occurs while
         they are at Site under any Contractor Indemnified Party's safekeeping
         and control.

         CONTRACTOR'S OBLIGATION TO CARRY OUT MEASURES STATED HEREIN APPLIES
         REGARDLESS OF WHETHER NEGLIGENCE IN ANY FORM HAS BEEN SHOWN BY ANY
         COMPANY INDEMNIFIED PARTY. However, in the case of such negligence by
         a Company Indemnified Party, any and all schedule delays will be
         addressed in accordance with the Variation Order procedures in Art. 12
         through 16.

29.2     Company agrees to procure and maintain during the period of the
         performance of the Work, a Builder's All Risk Insurance policy in
         accordance with Art. 31 covering all necessary repairs to or
         replacement of the Work and all Materials incorporated or to be
         incorporated therein. Company shall require its underwriters to name
         Contractor as co-insured under such policy and require its underwriters
         to waive all rights of subrogation against Contractor Indemnified
         Parties. Company shall assume liability and responsibility for any
         losses for which an exclusion applies. Company shall

                                       28
<PAGE>   35

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         deliver a certified copy of its Builder's All Risk Insurance to
         Contractor prior to the commencement of the Work.

29.3     Contractor shall be liable for the deductible associated with the
         Builder's All Risk Insurance referenced in Art. 29.2 up to a maximum as
         defined in Appendix I, above which amount Company shall be liable.

ART. 30  EXCLUSION OF LIABILITY - INDEMNIFICATION

30.1     Contractor Indemnity

         CONTRACTOR RELEASES EACH COMPANY INDEMNIFIED PARTY FROM ANY LIABILITY
         TO CONTRACTOR FOR, AND CONTRACTOR WILL DEFEND, INDEMNIFY AND HOLD EACH
         COMPANY INDEMNIFIED PARTY HARMLESS FROM AND AGAINST, ALL LOSSES, BY
         WHOMEVER BROUGHT, BASED ON PERSONAL INJURY OR DEATH, WHENEVER
         OCCURRING, SUFFERED OR INCURRED BY ANY CONTRACTOR INDEMNIFIED PARTY
         ARISING FROM OR RELATED IN ANY WAY TO PERFORMANCE OF THE WORK OR CAUSED
         BY THE CONTRACT OBJECT HEREUNDER, REGARDLESS OF HOW SUCH PERSONAL
         INJURY OR DEATH IS CAUSED AND EVEN IF CAUSED BY THE NEGLIGENCE, WHETHER
         SOLE OR CONCURRENT OR ACTIVE OR PASSIVE, OR OTHER LEGAL FAULT,
         INCLUDING STRICT LIABILITY THE UNSEAWORTHINESS OF ANY VESSEL AND THE
         UNAIRWORTHINESS OF ANY AIRCRAFT AND INCLUDING PRE-EXISTING CONDITIONS,
         OF ANY COMPANY INDEMNIFIED PARTY.

         CONTRACTOR RELEASES EACH COMPANY INDEMNIFIED PARTY FROM ANY LIABILITY
         TO CONTRACTOR FOR, AND CONTRACTOR WILL DEFEND, INDEMNIFY AND HOLD EACH
         COMPANY INDEMNIFIED PARTY HARMLESS FROM AND AGAINST, ALL LOSSES, BY
         WHOMEVER BROUGHT, BASED ON PROPERTY DAMAGE OR LOSS, WHENEVER OCCURRING,
         SUFFERED OR INCURRED BY EACH CONTRACTOR INDEMNIFIED PARTY ARISING FROM
         OR RELATED IN ANY WAY TO PERFORMANCE OF THE WORK OR THE CONTRACT OBJECT
         HEREUNDER, REGARDLESS OF HOW SUCH DAMAGE OR LOSS IS CAUSED AND EVEN IF
         CAUSED BY THE NEGLIGENCE, WHETHER SOLE OR CONCURRENT OR ACTIVE OR
         PASSIVE, OR OTHER LEGAL FAULT, INCLUDING STRICT LIABILITY, THE
         UNSEAWORTHINESS OF ANY VESSEL AND THE UNAIRWORTHINESS OF ANY AIRCRAFT
         AND INCLUDING PRE-EXISTING CONDITIONS, OF ANY COMPANY INDEMNIFIED
         PARTY; PROVIDED, HOWEVER, THAT CONTRACTOR'S INDEMNIFICATION OBLIGATIONS
         HEREUNDER SHALL NOT EXTEND TO ANY PORTION OF THE WORK FOR WHICH

                                       29
<PAGE>   36

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         COMPANY HAS EXPRESSLY ASSUMED THE RISK OF LOSS PURSUANT TO THIS
         AGREEMENT.

30.2     Company Indemnity

         COMPANY RELEASES EACH CONTRACTOR INDEMNIFIED PARTY FROM ANY LIABILITY
         TO COMPANY FOR, AND COMPANY WILL DEFEND, INDEMNIFY AND HOLD EACH
         CONTRACTOR INDEMNIFIED PARTY HARMLESS FROM AND AGAINST, ALL LOSSES, BY
         WHOMEVER BROUGHT, BASED ON PERSONAL INJURY OR DEATH, WHENEVER
         OCCURRING, SUFFERED OR INCURRED BY ANY COMPANY INDEMNIFIED PARTY
         ARISING FROM OR RELATED IN ANY WAY TO PERFORMANCE OF THE WORK OR CAUSED
         BY THE CONTRACT OBJECT HEREUNDER, REGARDLESS OF HOW SUCH PERSONAL
         INJURY OR DEATH IS CAUSED AND EVEN IF CAUSED BY THE NEGLIGENCE, WHETHER
         SOLE OR CONCURRENT OR ACTIVE OR PASSIVE, OR OTHER LEGAL FAULT,
         INCLUDING STRICT LIABILITY THE UNSEAWORTHINESS OF ANY VESSEL AND THE
         UNAIRWORTHINESS OF ANY AIRCRAFT AND INCLUDING PRE-EXISTING CONDITIONS,
         OF ANY CONTRACTOR INDEMNIFIED PARTY.

         COMPANY RELEASES EACH CONTRACTOR INDEMNIFIED PARTY FROM ANY LIABILITY
         TO COMPANY FOR, AND COMPANY WILL DEFEND, INDEMNIFY AND HOLD EACH
         CONTRACTOR INDEMNIFIED PARTY HARMLESS FROM AND AGAINST, ALL LOSSES, BY
         WHOMEVER BROUGHT, BASED ON PROPERTY DAMAGE OR LOSS, WHENEVER OCCURRING,
         SUFFERED OR INCURRED BY EACH COMPANY INDEMNIFIED PARTY ARISING FROM OR
         RELATED IN ANY WAY TO PERFORMANCE OF THE WORK OR THE CONTRACT OBJECT
         HEREUNDER, REGARDLESS OF HOW SUCH DAMAGE OR LOSS IS CAUSED AND EVEN IF
         CAUSED BY THE NEGLIGENCE, WHETHER SOLE OR CONCURRENT OR ACTIVE OR
         PASSIVE, OR OTHER LEGAL FAULT, INCLUDING STRICT LIABILITY, THE
         UNSEAWORTHINESS OF ANY VESSEL AND THE UNAIRWORTHINESS OF ANY AIRCRAFT
         AND INCLUDING PRE-EXISTING CONDITIONS, OF ANY CONTRACTOR INDEMNIFIED
         PARTY; PROVIDED, HOWEVER, THAT COMPANY'S INDEMNIFICATION OBLIGATIONS
         HEREUNDER SHALL NOT EXTEND TO ANY PORTION OF THE WORK FOR WHICH
         CONTRACTOR HAS EXPRESSLY ASSUMED THE RISK OF LOSS PURSUANT TO THIS
         AGREEMENT.

                                       30
<PAGE>   37

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

30.3     Third Parties

         Until the issuance of the Acceptance Certificate, Contractor shall
         indemnify all Company Indemnified Parties from:

         a)       costs resulting from the requirements of public authorities
                  in connection with the removal of wrecks, or pollution from
                  vessels or other floating devices provided by Contractor
                  Indemnified Parties for use in connection with the Work
                  (subject to Art. 39), and

         b)       claims arising out of loss or damage suffered by anyone other
                  than a Contractor Indemnified Party and a Company Indemnified
                  Party in connection with the Work or caused by the Contract
                  Object,

         but only to the extent of Contractor Indemnified Parties' negligence or
         other fault attributable to Contractor Indemnified Parties.

         Company shall indemnify Contractor Indemnified Parties from and against
         claims mentioned in the paragraph above, to the extent that they exceed
         the limitations of liability mentioned in Art. 30.4 below, regardless
         of any form of liability, whether strict liability or by negligence
         (including sole or concurrent or active or passive) in whatever form by
         Contractor Indemnified Parties.

         After issue of the Acceptance Certificate, Company shall indemnify
         Contractor Indemnified Parties from and against any claims of the kind
         mentioned in Art. 30.3 a) and b) above, regardless of any form of
         liability, whether strict liability or by negligence (including sole or
         concurrent or active or passive) in whatever form by Contractor
         Indemnified Parties. Further, after issue of the Acceptance
         Certificate, Contractor shall be under no responsibility to insure
         against any risk or liabilities in relation to the Contract.

30.4     Limitations on Liability

         Contractor's liability for loss or damage arising out of each incident
         as provided in Art. 30.1 through 30.3 shall be limited to US$1,000,000.
         However, this does not apply to Contractor's liability for loss or
         damage for each incident covered by insurances provided in accordance
         with Art. 31.2, where Contractor's liability extends to the sum
         recovered under the insurance for the loss of damage. In addition,
         Contractor should obtain Excess Liability Insurance serving to increase
         primary limits to other required coverages to US$24,000,000 per
         occurrence. The Excess Liability Insurance shall remain in force until
         issuance of the Acceptance Certificate.

30.5     Proprietary and Intellectual Property Indemnity and Related Matters

         CONTRACTOR shall indemnify and hold each COMPANY INDEMNIFIED PARTY
         harmless from suits, claims or cause of actions resulting from
         infringement of an industrial property right in connection with the
         work, or any

                                       31
<PAGE>   38

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         COMPANY INDEMNIFIED PARTY'S use of the CONTRACT OBJECT. Industrial
         property rights include patent, trademark, copyright, unfair
         competition and trade secret rights.

         CONTRACTOR shall be liable for any damages, including increased damages
         because of willful and/or intentional acts, an award of attorneys fees
         that includes the third party attorneys fees, and/or prejudgment
         interest, incurred by any COMPANY INDEMNIFIED PARTY as a result of a
         suit, claim or cause of action for infringement of any industrial
         property right of any third party, which claim or cause of action
         arises from the purchase or use of the work or CONTRACT OBJECT.

         CONTRACTOR agrees to defend each COMPANY INDEMNIFIED PARTY and their
         privies against all suits, claims and causes of action for infringement
         by the work or CONTRACT OBJECT of the industrial property rights of any
         third party.

         If a temporary, preliminary or a permanent injunction is obtained
         against any COMPANY INDEMNIFIED PARTY'S use of the work or CONTRACT
         OBJECT, or any portion thereof by reason of an infringement of an
         industrial property right, CONTRACTOR will, at its option and expense,
         use commercially reasonable effort to either

            (i)   Procure for any COMPANY INDEMNIFIED PARTY the right to
                  continue using the work and CONTRACT OBJECT, or

            (ii)  Replace or modify for any COMPANY INDEMNIFIED PARTY the work
                  and CONTRACT OBJECT or such infringing portion thereof so that
                  it no longer infringes such industrial property right, so long
                  as the utility or performance of the work and CONTRACT OBJECT
                  is not adversely affected by such replacement or modification
                  and the work and CONTRACT OBJECT continues to materially
                  conform with the specifications of the work or CONTRACT
                  OBJECT.

         If COMPANY INDEMNIFIED PARTY is damaged as a result from non-use of the
         work or CONTRACT OBJECT purchased under this contract, where non-use
         results from a court order not to make or use the work or CONTRACT
         OBJECT as a result of a lawsuit brought by a third party for
         infringement by the work or CONTRACT OBJECT of an industrial property
         right, then COMPANY INDEMNIFIED PARTY shall be reimbursed from
         contractor for actual damages from said non-use incurred by COMPANY
         INDEMNIFIED PARTY up to a limit of $1,000,000.

         CONTRACTOR shall also indemnify and hold each COMPANY INDEMNIFIED PARTY
         harmless for any claim, cause of action or suit, such as for trade and
         business torts, for use of the work or CONTRACT OBJECT

                                       32
<PAGE>   39

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         Under the contract which is caused in whole or part by CONTRACTOR,
         which is brought against a COMPANY INDEMNIFIED PARTY by a third party.
         CONTRACTOR shall defend and pay all costs and expenses in defending a
         claim, cause of action or suit for such dispute.

         The provisions of this section on defense and indemnification shall
         survive the expiration of the term of this contract. The privileges and
         benefits enjoyed under this section on defense and indemnification
         shall inure to the benefit of COMPANY INDEMNIFIED PARTIES' privies,
         including a subsequent owner of an interest of any COMPANY INDEMNIFIED
         PARTY.

         If it becomes necessary for COMPANY INDEMNIFIED PARTIES to enforce this
         indemnification provision against CONTRACTOR, CONTRACTOR shall pay for
         COMPANY INDEMNIFIED PARTIES' attorneys' fees, court costs, litigation
         expenses and any other costs or expenses associated with the
         enforcement action.

30.6     Notice of Claim

         Whenever any claim shall arise for indemnification hereunder, the
         indemnified party shall promptly notify the indemnifying party of the
         claim and, when known, the facts constituting the basis for such claim,
         except that in the event of any claim for indemnification hereunder
         resulting from or in connection with any claim or legal proceedings by
         a Third Party, such notice shall specify, if known, the amount or an
         estimate of the amount of the liability arising therefrom.

         The Parties shall give each other information and other assistance
         needed for handling the claim. Neither Party shall, without the consent
         of the other Party, approve of a claim which shall be indemnified, in
         whole or in part, by the other Party.

30.7     Consequential Damages

         Notwithstanding anything to the contrary contained elsewhere in this
         Contract, no Company Indemnified Party or Contractor Indemnified Party
         shall be liable to any member of the other group for any consequential,
         incidental or indirect damages (whether liquidated or unliquidated),
         including, but not limited to, loss of use, loss of profit, loss of
         revenue, loss of product or production, reservoir damage, or loss of
         hole, damage due to blowout or cratering, whenever arising under this
         Contract or as a result of, relating to or in connection with the Work
         under the Contract and no claim shall be made by any Contract
         Indemnified Party Group or Company Indemnified Party against any member
         of the other group regardless of whether such claim is based or claimed
         to be based on negligence (including, sole, joint, active, passive,
         concurrent or gross negligence), unseaworthiness, unairworthiness,
         fault, breach of warranty, breach of agreement, statute, strict
         liability or otherwise.

                                       33
<PAGE>   40

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

Art. 31  INSURANCES

31.1     Company shall provide and maintain the insurances described below and
         in Appendix I - Company's Insurances, etc.

         a)       Builder's all risk insurance, or equivalent insurance,
                  covering the Contract Object, Materials and Company Provided
                  Items against physical loss or damage, in accordance with the
                  insurance conditions.

         b)       Transport insurance covering the Contract Object, Materials
                  and Company Provided Items against physical loss or damage
                  during transportation, in accordance with the insurance
                  conditions.

         c)       Liability insurance covering Company's liability under Art.
                  30.3 for claims arising from each accident.

         Such insurance coverage shall be effective from the start of the Work
         and shall not expire until issue of the Acceptance Certificate.

         The policies shall state that Company and Contractor are named
         insureds, and the insurers shall waive any right of subrogation against
         Contractor Indemnified Parties, but only to the extent of Contractor
         Indemnified Parties' obligations under this Contract.

31.2     Contractor shall, and shall cause each authorized subcontractor to,
         carry insurance as specified in Appendix O.

31.3     If one of the Parties fails to take out insurance according to its
         obligations of this Article, then the other Party is entitled to take
         out such insurance and claim a refund of the costs from the Party in
         default.

31.4     When any incident occurs for which coverage is granted under one of the
         Parties' insurance policies, the other Party shall notify that Party
         without undue delay, enclosing a description of the incident that gives
         rise to the insurance claim. When the Party whose insurance policy
         covers the claim, handles the claim, the other Party shall provide it
         with reasonable assistance, without claiming compensation.

31.5     Each Party shall support its mutual indemnity obligations with respect
         to injury or death of any Person or damage to or loss of property by
         liability insurance coverage in the amounts set forth herein.

PART 9   PROPRIETARY RIGHTS, ETC.

ART. 32  RIGHTS TO DOCUMENTS AND COMPUTER PROGRAMS

32.1     Documents and computer programs provided by Company to Contractor, or
         which are developed mainly on the basis of such documents and computer
         programs, shall

                                       34
<PAGE>   41

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         remain the exclusive property of Company. The same applies to all
         copies of the aforementioned documents and computer programs.

         Such documents, computer programs or copies shall not be used by
         Contractor other than for the purpose of the Work. Such documents,
         computer programs or copies shall be returned to Company at the
         expiration of the Contract, unless otherwise agreed between Company and
         Contractor.

32.2     Documents and computer programs provided by Contractor to Company, or
         which are developed mainly on the basis of such documents and computer
         programs, including, but not limited to, technical data, design,
         drawings, plans, reports, specifications and other materials employed
         in the design, fabrication, assembly, installation and operation of the
         Work, shall remain the exclusive property of Contractor. The same
         applies to all copies of the aforementioned documents and computer
         programs.

         Company shall be entitled to use such documents, computer programs and
         copies only in connection with the operation, repair, modification and
         maintenance of the Contract Object or Contractor supplied equipment,
         unless otherwise prescribed in Appendix K - Contractor's Proprietary
         Information.

32.3     All other documents, computer programs and copies thereof developed by
         Contractor or its Affiliate in connection with the Work shall be the
         property of Contractor.

         Company shall be entitled to use such documents, computer programs and
         copies only in connection with the operation, repair, modification and
         maintenance of the Contract Object or Contractor supplied equipment,
         unless otherwise prescribed in Appendix K - Contractor's Proprietary
         Information.

32.4     The Parties shall ensure that all those who have access to such
         documents, computer programs and copies thereof as referenced in Art.
         32.1 through 32.3 shall comply with the provisions of this Contract.
         Further, any Third Party to receive such documents shall be required by
         the Party disclosing the documents, prior to communication of the
         information, to execute a written covenant and confidentiality
         agreement with such Party on the same terms specified in this Art. 32
         and in Art. 34.1.

ART. 33  INVENTIONS

33.1     Inventions made by Contractor during the performance of the Work shall
         be the property of Contractor. This does not apply, however, to
         inventions mainly based on technical information received from Company
         under Art. 32.1, which inventions shall be the exclusive property of
         Company.

         Contractor shall notify Company of all inventions which shall be
         Company's exclusive property, and Contractor shall provide the
         necessary assistance to enable

                                       35
<PAGE>   42

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         Company to acquire the patents to the inventions. Company shall pay
         Contractor for all reasonable costs in connection with such assistance,
         including compensation to Contractor's employees or others, in
         accordance with applicable law or general agreements concerning
         compensation for inventions.

33.2     Company shall grant to Contractor an irrevocable, royalty-free,
         non-exclusive license to inventions which are Company's exclusive
         property in accordance with Art. 33.1.

33.3     Contractor shall grant to Company an irrevocable, royalty-free,
         non-exclusive license to all inventions which are under, or which prior
         to delivery of the Contract Object come under, Contractor's control, to
         the extent necessary for Contractor to perform the Work, or for the
         operation, maintenance, modification and repair of the Contract Object.

         Contractor shall also grant to Company an irrevocable, royalty-free,
         non-exclusive license to inventions made by Contractor in connection
         with the Work and which are based on technical information from both
         Parties, without any of them providing the main part of such
         information. The license shall include a right to use the invention in
         construction of objects of whatever kind, provided, however, that the
         license under this paragraph shall at all times be restricted to
         operations where Company is an operator, and shall at no time include a
         right to sublicense.

         Company shall also grant to Contractor an irrevocable, royalty-free,
         non-exclusive license to inventions made by Company in connection with
         the Work and which are based on technical information from both
         Parties, without any of them providing the main part of such
         information. The license shall include a right to use the invention in
         construction of objects of whatever kind, provided, however, that the
         license under this paragraph shall at no time include a right to
         sublicense.

ART. 34  CONFIDENTIAL INFORMATION

34.1     All information exchanged between the Parties shall be treated as
         confidential and shall not be disclosed to a Third Party without the
         other Party's written permission, unless such information:

         a)       may be disclosed to a Third Party in accordance with Art. 32
                  and 33,

         b)       is already known to the party in question at the time the
                  information was received,

         c)       is or becomes part of the public domain other than through a
                  fault of a Company Indemnified Party or a Contractor
                  Indemnified Party,

         d)       is rightfully received from a Third Party, without an
                  obligation of confidentiality.

                                       36
<PAGE>   43

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         Each of the Parties may, however, use or disclose confidential
         information to a Third Party, to the extent necessary for the
         performance of and control of the Work and use of the Contract
         Object. In such cases the Parties, prior to disclosing the confidential
         information to the Third Party, shall ensure that the Third Party
         executes a written covenant and confidentiality agreement in accordance
         with Art. 32, 33 and 34, as such Articles are applicable to the
         confidential information being disclosed.

34.2     Contractor shall not publish information concerning the Work or the
         Contract without Company's written approval. This approval shall not
         unreasonably be withheld.

PART 10  OTHER PROVISIONS

ART. 35  ASSIGNMENT OF THE CONTRACT, ETC.

35.1     Company may assign its rights and obligations under the Contract to a
         Third Party, provided that Company can demonstrate that the assignee
         has the financial strength required to fulfil Company's obligations
         under the Contract. At Contractor's request, Company shall provide a
         guarantee satisfactory to Contractor of the Third Party's performance.

35.2     Contractor may not assign or mortgage the Contract, or a part or
         interest in it, to a Third Party without Company's written approval.
         Such approval is not required for an assignment or mortgage to a bank
         or other financial enterprise.

ART. 36  NOTICES

         All notices, claims and other notification to be given in accordance
         with the provisions of the Contract shall be submitted in writing to
         the relevant Party's representative under Art. 3, with such address as
         given in Appendix D - Administration Requirements or as changed by
         notice.

ART. 37  UNITED STATES LAW AND DISPUTES

37.1     Choice of Law

         THIS CONTRACT SHALL BE DEEMED TO BE A CONTRACT UNDER, AND SHALL BE
         CONSTRUED, INTERPRETED AND GOVERNED BY AND ACCORDING TO, THE LAWS OF
         THE STATE OF TEXAS, EXCLUDING ANY CONFLICT OF LAWS PRINCIPLES WHICH, IF
         APPLIED, MIGHT PERMIT OR REQUIRE THE APPLICATION OF THE LAWS OF ANOTHER
         JURISDICTION. NON-EXCLUSIVE VENUE FOR ANY LEGAL PROCEEDING ARISING FROM
         OR RELATING TO THIS CONTRACT SHALL BE HOUSTON, HARRIS COUNTY, TEXAS.

37.2     Dispute Resolution

                                       37
<PAGE>   44
DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         The Parties recognize that the amicable settlement of disputes is in
         their mutual best interests. As such, the Parties agree to promptly
         notify the other Party of any dispute and to engage in good faith
         consultations to resolve such a dispute. If such consultations do not
         resolve the dispute within 30 Days of notification thereof, the Parties
         agree to submit any dispute to consultations to resolve such a dispute.
         If such consultations do not resolve the dispute within 30 Days of
         notification thereof, the Parties agree to submit any dispute to
         consultations between the Chief Executive Officer of MODEC
         International LLC and the President, chief executive office or
         principal of the Company. If such consultations fail to resolve such a
         dispute within 30 Days, either Party may submit the matter to
         arbitration under American Arbitration Association Construction
         Industry Rules as presently in force. The number of arbitrators will be
         one. The arbitration will be conducted by one mutually agreed
         arbitrator (or in the absence of agreement, by an arbitrator appointed
         by the administering body for the arbitration). The arbitrator shall
         agree that time is of the essence in the rendering of a decision. The
         place of the arbitration shall be Houston, Texas and the arbitration
         shall be conducted in English. The arbitrator shall be empowered to
         order injunctive relief but shall not be empowered to award damages in
         excess of compensatory damages and each Party hereby irrevocably waives
         any right to recover such damages with respect to any dispute resolved
         by arbitration. The decision of the arbitrator will be final and
         binding upon each Party and may be enforced in any court of competent
         jurisdiction. The cost and expenses of any such arbitration, including
         the legal expenses of the prevailing Party, will be borne as determined
         by the arbitrator. Neither Party shall be excused from the performance
         of its obligations, alternative dispute resolution or litigation
         relating hereto. Notwithstanding this provision, nothing in this
         Contract shall preclude either Party from seeking injunctive relief
         from a court of competent jurisdiction to preserve the status quo
         during the pendency of the dispute nor shall either Party be precluded
         from seeking appropriate judicial relief to enforce or preserve
         separately available statutory rights.

         All statutes of limitations which would otherwise apply to an action at
         law would apply to an action under this arbitration provision.

ART. 38  EQUAL EMPLOYMENT OPPORTUNITY PROVISIONS

         In order to ensure compliance with the Equal Employment Opportunity
         provisions of Executive Orders 11246, 11375, 11598, 11141, and 11758,
         the Contractor agrees to and shall be bound by these provisions and
         all rules and regulations promulgated thereunder, and with all
         amendments and additions thereto.

         Contractor shall be bound by and agrees to the following provisions as
         contained in Section 202 of Executive Order 11246, to wit:

         (1)      Contractor will not discriminate against any employee or
                  applicant for employment because of race, color, religion,
                  sex, age or national origin. The

                                       38
<PAGE>   45

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

                  Contractor will take affirmative action to ensure that
                  applicants are employed, and that employees are treated during
                  employment, without regard to their race, color, religion,
                  sex, or national origin. Such action shall include, but not be
                  Limited to the following. Employment, upgrading, demotion, or
                  transfer, recruitment or recruitment advertising, layoff or
                  termination rates of pay or other forms of compensation; and
                  selection for training, including apprenticeship. The
                  Contractor agrees to post in conspicuous places, available to
                  employees and applicants for employment, notice to be provided
                  by the contracting officer setting forth the provisions of
                  this nondiscrimination clause.

         (2)      Contractor will, in all solicitations or advertisements for
                  employees placed by or on behalf of the Contractor, state that
                  all qualified applicants will receive consideration for
                  employment without regard to race, color, religion, sex, age
                  or national origin.

         (3)      Contractor will send to each labor union or representative of
                  workers with which he has a collective bargaining agreement or
                  other contract or understanding, a notice, to be provided by
                  the agency contracting officer, advising the labor union or
                  worker's representative of the Contractor's commitments under
                  Section 202 of Executive Order 11246 of September 24, 1965,
                  and shall post copies of the notice in conspicuous places
                  available to employees and applicants for employment.

         (4)      Contractor will comply with all provisions of Executive Order
                  11246 of September 24, 1965, and of the rules, regulations,
                  and relevant orders of the Secretary of Labor.

         (5)      Contractor will furnish all information and reports required
                  by Executive Order 11246 of September 24, 1965, and by the
                  rules, regulations, and orders of the Secretary of Labor, or
                  pursuant thereto, and will permit access to its books,
                  records, and accounts by the contracting agency and the
                  Secretary of Labor for the purposes of investigation to
                  ascertain compliance with such rules, regulations and orders.

         6)       In the event of the Contractor's noncompliance with the
                  nondiscrimination clauses of this contract or with any such
                  rules, regulations, or orders, this contract may be cancelled,
                  terminated or suspended in whole or in part and the Contractor
                  may be declared ineligible for further Government contracts in
                  accordance with procedures authorized in Executive Order 11246
                  of September 24, 1965, and such other sanctions may be imposed
                  and remedies invoked as provided in Executive Order 11246 of
                  September 24, 1965, or by rule, regulation, or order of the
                  Secretary of Labor, or as otherwise provided by law.

                                       39
<PAGE>   46
DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         7)       Contractor will include the provisions of Sections I.A.(1)
                  through I.A.(7) in every subcontract or purchase order unless
                  exempted by rules, regulations or orders of the Secretary of
                  Labor issued pursuant to Section 204 of Executive Order 11246
                  of September 24, 1965, so that such provisions will be binding
                  upon each subcontractor or vendor. The Contractor will take
                  such action with respect to any subcontract or purchase order
                  as the contracting agency may direct as a means of enforcing
                  such provisions including sanctions for noncompliance:
                  PROVIDED, HOWEVER, that in the event the Contractor becomes
                  involved in, or is threatened with, litigation with a
                  subcontractor or vendor as a result of such direction by the
                  contracting agency, the Contractor may request the United
                  States to enter into such litigation to protect the interests
                  of the United States.

         Contractor certifies that he does not maintain or provide for its
         employees any segregated facilities at any of its establishments, and
         that he does not permit its employees to perform their services at any
         locations, under this contract where segregated facilities are
         maintained. He certifies further that he will not maintain or provide
         for its employees any segregated facilities at any of its
         establishments, and that he will not permit location, under its
         control, where segregated facilities are maintained. Contractor agrees
         that a breach of this certification is a violation of the Equal
         Opportunity Clause in this contract. As used in this certification, the
         term "segregated facilities" means any waiting rooms, work areas, rest
         rooms and wash rooms and other storage or dressing areas, parking lots,
         drinking fountains, recreation or entertainment area, transportation
         and housing facilities provided for employees which are segregated by
         explicit directive or are in fact segregated on the basis of race,
         creed, color, or national origin, because of habit, local custom or
         otherwise. He further agrees that (Except where he has obtained
         identical certifications from proposed subcontractors for specific time
         periods) he will obtain identical certifications from proposed
         subcontractors prior to the award of subcontractors exceeding $10,000
         which are not exempt from the provisions of Equal Opportunity Clause;
         that he will retain such certifications in its files; and that he will
         forward the following notice to such proposed subcontractors (except
         where the proposed subcontractors have submitted identical
         certifications for specific time periods):

         NOTICE TO PROSPECTIVE SUBCONTRACTORS OF REQUIREMENT FOR CERTIFICATIONS
         ON NONSEGREGATED FACILITIES

         A Certification of Nonsegregated Facilities as required by the May 9,
         1965, order on Elimination of Segregated Facilities, by the Secretary
         of Labor 932 Fed. Reg. 7439, May 19, 1967), must be submitted prior to
         the award of a subcontract exceeding $10,000 which is not exempt from
         the provisions of the Equal Opportunity Clause. The Certification may
         be submitted either for each subcontract or for all subcontracts during
         a period (i.e., quarterly, semiannually, or annually). (1968 MAR.)
         (Note: The penalty for making false statements in offers is prescribed
         in 18 U.S.C. Section 1001.)

                                       40
<PAGE>   47

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

ART. 39  POLLUTION CONTROL AND RESPONSIBILITY

39.1     During the performance of the Work under this Contract, the
         responsibility of Company and the Contractor for control and removal of
         pollution or contaminations shall be defined as follows:

39.2     Conduct of Operations

         Each Contractor Indemnified Party shall exercise all reasonable
         diligence to conduct its operations in a manner that will prevent
         pollution and each Contractor Indemnified Party shall comply with all
         applicable laws, ordinances, rules, regulations and lease or contract
         provisions regarding pollution, including without limitation those of
         the U.S. Coast Guard, U.S. Army Corps of Engineers, U.S. Geological
         Survey, and U.S. Department of Interior. No Contractor Indemnified
         Party shall permit trash, waste oil, bilge water, or other pollutants
         to be discharged or to escape into the sea. Each Contractor Indemnified
         Party will take reasonable measures to instruct its personnel in such
         matters and to prevent such pollution and will clean up such pollution
         caused by it in the course of operations relating to this Contract.
         Contractor shall provide Company with a copy of all environmental
         response plans covering work conducted hereunder prior to commencement
         of such work. It is not intended hereby to limit or conflict with the
         responsibilities of Company and Contractor as further defined within
         this Exhibit.

39.3     Contractor's Responsibilities

         Contractor shall assume all responsibility for, including control and
         removal of, and release, indemnify and hold each Company Indemnified
         Party harmless against and from loss, cost or damage arising from
         pollution or contamination:

         (1)      Which originates above the surface of the land or water:

                  (a)      from spills or leaks of fuels, lubricants, motor oil,
                           pipe dope, paints, solvents, ballasts, bilge,
                           garbage, sewerage, and other materials exclusive of
                           those covered by subpart (b) below, in each
                           Contractor Indemnified Party's possession and
                           control, WHETHER CAUSED OR BROUGHT ABOUT BY ANY
                           COMPANY INDEMNIFIED PARTY'S NEGLIGENCE (INCLUDING
                           ACTIVE, PASSIVE, SOLE, JOINT OR CONCURRENT
                           NEGLIGENCE) OR ANY OTHER THEORY OF LEGAL LIABILITY,
                           INCLUDING STRICT LIABILITY, THE UNSEAWORTHINESS OF
                           ANY VESSEL AND THE UNAIRWORTHINESS OF ANY AIRCRAFT
                           AND INCLUDING PRE-EXISTING CONDITIONS.

                  (b)      from spills, leaks or dumping of oil emulsion, oil
                           base or chemically treated drilling fluids,
                           contaminated cuttings and lost circulation and fish
                           recovery materials and fluids, when said materials
                           are in each

                                       41
<PAGE>   48

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

                           Contractor Indemnified Party's possession, although
                           their use or disposition may be at Company's
                           direction, and such spill, leak or dumping is a
                           result of any Contractor Indemnified Party's acts or
                           omissions;

         (2)      Resulting from fire, blowout, cratering, seepage, or any other
                  uncontrolled flow, from surface or subsurface, of oil, gas or
                  water from wells during the conduct of operations hereunder
                  when caused by any Contractor Indemnified Party's acts or
                  omissions, but only up to and not in excess of the first
                  $500,000 per occurrence of such loss, cost or damage;

         (3)      Resulting from leaking or other uncontrolled flow of oil, gas
                  or water from pipelines, including lines on or in submerged
                  lands, ruptured or damaged by any Contractor Indemnified
                  Party's rig, barge, anchors or other equipment, or by any
                  Contractor Indemnified Party's operations, when such rupture
                  or damage is caused by any Contractor Indemnified Party's acts
                  or omissions, but only up to and not in excess of the first
                  $500,000 per occurrence of such loss, cost or damage.

39.4     Company's Responsibilities

         Company shall assume all responsibility for, including control and
         removal of, and release, indemnify and hold each Contractor Indemnified
         Party harmless against and from loss, cost or damage arising from
         pollution or contamination:

         (1)      Resulting from fire, blowout, cratering, seepage, or any other
                  uncontrolled flow of oil, gas or water from wells during the
                  conduct of operations hereunder when not resulting from any
                  Contractor Indemnified Party's acts or omissions and,
                  excluding the first $500,000 per occurrence of such loss, cost
                  or damage, WHETHER CAUSED OR BROUGHT ABOUT BY ANY CONTRACTOR
                  INDEMNIFIED PARTY'S NEGLIGENCE (INCLUDING ACTIVE, PASSIVE,
                  SOLE, JOINT OR CONCURRENT NEGLIGENCE) OR ANY OTHER THEORY OF
                  LEGAL LIABILITY, INCLUDING STRICT LIABILITY, THE
                  UNSEAWORTHINESS OF ANY VESSEL AND THE UNAIRWORTHINESS OF ANY
                  AIRCRAFT AND INCLUDING PRE-EXISTING CONDITIONS.

         (2)      Resulting, except as provided in Art. 39.3(1)(b) above, from
                  possession, use or disposition of oil emulsion, oil base or
                  chemically treated drilling fluids, contaminated cuttings,
                  lost circulation, fish recovery materials and fluids,
                  including such possession, use or disposition by any Company
                  Indemnified Party;

         (3)      Resulting from leakage or other uncontrolled flow of oil, gas
                  or water from pipelines, including lines on or in submerged
                  lands, ruptured or damaged by Contractor Indemnified Party's
                  barge, anchors, or other equipment, or by

                                       42
<PAGE>   49

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

                  Contractor Indemnified Party's operations, when such rupture
                  or damage is not caused by Contractor Indemnified Party's acts
                  or omissions, and excluding the first $500,000 per occurrence
                  of such loss, cost or damage, WHETHER CAUSED OR BROUGHT ABOUT
                  BY ANY CONTRACTOR INDEMNIFIED PARTY'S NEGLIGENCE (INCLUDING
                  ACTIVE, PASSIVE, SOLE, JOINT OR CONCURRENT NEGLIGENCE) OR ANY
                  OTHER THEORY OF LEGAL LIABILITY, INCLUDING STRICT LIABILITY,
                  THE UNSEAWORTHINESS OF ANY VESSEL AND THE UNAIRWORTHINESS OF
                  ANY AIRCRAFT AND INCLUDING PRE-EXISTING CONDITIONS.

39.5     Agreement

         Without relieving Contractor of any of its obligations above provided,
         it is agreed that Company may take part to any degree it deems
         necessary in the control and removal of any pollution or contamination
         which is the responsibility of Contractor under the foregoing
         provisions; and Contractor shall reimburse Company for the cost
         thereof, subject to any limitations above provided, upon the receipt of
         billing therefor from Company.

ART. 40  YEAR 2000 WARRANTY

40.1     Contractor hereby represents and warrants to Company that all Products
         are and will be Year 2000 Compliant.

40.2     This representation and warranty shall survive until the earlier of 24
         months or upon termination of this Contract. In the event that such
         warranty compliance requires the acquisition of additional Products,
         the expense for any such associated or additional acquisitions which
         may be required (including, without limitation, data conversion tools)
         shall be borne exclusively by supplier.

         As used herein, "Year 2000 Compliant" means the Product will:

         A.       function without interruption or human intervention with
                  four-digit year processing on all Date Data, including errors
                  or interruptions from functions which may involve Date Data
                  from more than one century or leap years, regardless of the
                  date of processing or date of Date Data ("Date Data" means
                  any data, input, or output which includes an indication of
                  date);

         B.       provide results from any operation accurately reflecting any
                  Date Data used in the operation performed, with output in any
                  form, except graphics, having four-digit years;

         C.       accept two-digit year Date Data in a manner that resolves any
                  ambiguities as to century in a defined manner; and

                                       43
<PAGE>   50

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         D.       provide data interchange in the ISO 8601:1988 standard of
                  CCYYMMDD

40.3     This warranty shall apply to all Products delivered by supplier now or
         in the future, including all bug fixes, patches, updates, enhancements,
         new development, or other software, equipment or documentation. A
         Product (as such term is defined herein) failure caused by or
         contributed to be because such Product is not Year 2000 Compliant, as
         defined above, is not a Force Majeure event.

ART. 41  MISCELLANEOUS

41.1     Taxes

         Any duties or tariffs or state or county sales, use or ad valorem taxes
         which become payable to any authority as a consequence of the
         performance of the Work shall be paid by Company and Company shall
         provide Contractor a sales tax exemption certificate; however,
         Contractor agrees to PROTECT AND KEEP COMPANY SAFE AND HARMLESS against
         all taxes and fines, penalties, and interest thereon assessed or
         levied against or on account of the Work related to wages, salaries, or
         other benefits paid to Contractor's employees or employees of
         Contractor's subcontractors. Contractor will promptly forward all tax
         assessments and similar statements or notices to Company for which
         Company is responsible.

41.2     Effective Date

         The effective date of this Contract shall be the date on which this
         Contract is fully executed by authorized signatories of each of the
         Parties.

41.3     Amendments

         This Contract may not be amended, nor any provision hereof waived,
         except by a written amendment executed with the same formality as this
         Contract and executed by duly authorized representatives of the
         respective Parties.

41.4     Entire Agreement

         This Contract constitutes the sole and only agreement of the Parties
         and supersedes any prior understandings or written or oral agreements
         between the Parties respecting the within subject matter. No agent,
         employee or representative of Company has any authority to bind Company
         to any affirmation, representation or warranty outside of, or in
         conflict with, the stated terms of this Contract, and Contractor hereby
         stipulates that it has not relied and will not rely on such an
         affirmation, representation or warranty.

41.5     Counterparts

                                       44
<PAGE>   51

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

         This Contract may be executed in multiple counterparts, each of which,
         when executed, shall be deemed an original, and all of which shall
         constitute but one and the same instrument.

41.6     Further Assurances

         Subject to the terms and conditions set forth in this Contract, each of
         the Parties agrees to use all reasonable efforts to take, or to cause
         to be taken, all actions, and to do, or to cause to be done, all things
         necessary, proper or advisable under applicable laws and regulations to
         consummate and make effective the transactions contemplated by this
         Contract. In case, at any time after the execution of this Contract,
         any further action is necessary or desirable to carry out its purposes,
         the proper officers or directors of the Parties shall take or cause to
         be taken all such necessary action.

41.7     Severability

         Any term or provision of this Contract that is invalid or unenforceable
         in any jurisdiction shall be ineffective as to such jurisdiction, to
         the extent of such invalidity or unenforceability, without rendering
         invalid or unenforceable the remaining terms and provisions of this
         Contract or affecting the validity or enforceability of any terms and
         provisions of this Contract in any other jurisdiction. If any provision
         of this Contract is so broad as to be unenforceable, each provision
         shall be interpreted to be only so broad as is enforceable. A
         bankruptcy or similar trustee must accept or, to the extent permitted
         by law, reject this Contract in its entirety.

41.8     Waiver

         Neither action taken (including, without limitation, any investigation
         by or on behalf of either Party) nor inaction pursuant to this
         Contract, shall be deemed to constitute a waiver of compliance with any
         representation, warranty, covenant or agreement contained herein by the
         Party not committing such action or inaction. A waiver by any Party of
         a particular right, including, without limitation, breach of any
         provision of this Contract, shall not operate or be construed as a
         subsequent waiver of that same right or a waiver of any other right.

41.9     No Third Party Beneficiaries

         Except to the extent a third party is expressly given rights herein,
         any agreement herein contained, expressed or implied, shall be only for
         the benefit of the Parties and their respective legal representatives,
         successors, and assigns, and such agreements or assumption shall not
         inure to the benefit of any other Person whomsoever, it being the
         intention of the Parties that no Person shall be deemed a third party
         beneficiary of this Contract except to the extent a third party is
         expressly given rights herein.

                                       45
<PAGE>   52

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

ART. 42  OPTION

42.1     For a period of 36 months from the Effective Date for the Sunday
         Silence unit, Contractor will execute projects and deliver the
         additional MOSE TI_P platforms to Company with all costs to Contractor,
         passed through to Company. Contractor will earn a discounted profit of
         6% on the total contract value as its profit.

42.2     In addition, Company and Contractor will agree to mutually acceptable
         incentives and penalties to cost and schedule.

42.3     Contractor will negotiate option pricing for a second unit from its
         vendors and sub-contractors, on a component basis, when placing the
         purchase order/contract for scopes of work for the Sunday Silence
         unit. Contractor will make its best efforts to obtain this option
         pricing at about the same pricing level as the components for the
         first unit. To the extent possible, this option pricing will be valid
         for a period of 12 months from the date of purchase order or
         subcontract from Contractor, or longer if possible to obtain from the
         vendor/sub-contractor. Contractor wishes to highlight that
         approximately 80% of the total cost of the unit is from vendors and
         sub-contractors. This mechanism will allow the prices, by component,
         to be firmed up at least for the next 12 months at the low levels
         available in today's depressed market conditions.

                 [Remainder of Page Intentionally Left Blank.]

                                       46
<PAGE>   53

DELOS OFFSHORE COMPANY, L.L.C.                  SUNDAY SILENCE FIELD DEVELOPMENT
                                                           FABRICATION AGREEMENT
================================================================================

          IN WITNESS WHEREOF, Contractor and Company have caused this
Fabrication Agreement to be duly executed and delivered as of the date and year
first above written.

                                       COMPANY

                                       DELOS OFFSHORE COMPANY, LLC.

                                       /s/ JAMES H. LYTAL
                                       -----------------------------------------
                                       James H. Lytal
                                       President

                                       CONTRACTOR

                                       MODEC INTERNATIONAL LLC

                                       /s/ K. MATAUNAGA
                                       -----------------------------------------
                                       Name: K. MATAUNAGA
                                            ------------------------------------
                                       Title: PRESIDENT & CEO
                                             -----------------------------------

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00009-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00009-of-00352.parquet"}]]