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                                                                    EXHIBIT 10.1


                         MASTER RESTRUCTURING AGREEMENT


                                  BY AND AMONG


                           PRIDE INTERNATIONAL, INC.


                                      AND


                                DRILLPETRO INC.

                                 TECHDRILL INC.


                                      AND


                  FIRST RESERVE FUND VII, LIMITED PARTNERSHIP

                         FIRST RESERVE FUND VIII, L.P.

                      MARITIMA PETROLEO E ENGENHARIA LTDA.

                        WESTVILLE MANAGEMENT CORPORATION


                                      AND


                        AMETHYST FINANCIAL COMPANY LTD.

                             PRIDE AMETHYST II LTD.



                           DATED AS OF MARCH 9, 2001
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                         MASTER RESTRUCTURING AGREEMENT

     This Master Restructuring Agreement is dated as of March 9, 2001 by and
among (1) Pride International, Inc., a corporation organized under the laws of
the State of Louisiana ("Buyer"), (2) Drillpetro Inc., an international business
company organized with limited liability under the laws of the Bahamas
("Drillpetro"), and Techdrill Inc., an international business company organized
with limited liability under the laws of the Bahamas ("Techdrill" and together
with Drillpetro, "Sellers"), (3) First Reserve Fund VII, Limited Partnership, a
limited partnership organized under the laws of the State of Delaware ("Fund
VII"), First Reserve Fund VIII, L.P., a limited partnership organized under the
laws of the State of Delaware ("Fund VIII" and together with Fund VII, "First
Reserve"), Maritima Petroleo e Engenharia Ltda., a privately held company with
limited liability organized under the laws of Brazil ("Maritima"), and Westville
Management Corporation, an international business company organized with limited
liability under the laws of the British Virgin Islands ("Westville"), and (4)
Amethyst Financial Company Ltd., an international business company organized
with limited liability under the laws of the British Virgin Islands (the
"Company"), and Pride Amethyst II Ltd., an international business company
organized with limited liability under the laws of the British Virgin Islands
("Amethyst II"). Buyer, Sellers, First Reserve, Maritima, Westville, the Company
and Amethyst II may hereinafter be referred to individually as a "Party" and
together as the "Parties."

                              W I T N E S S E T H

     WHEREAS, Sellers and First Reserve own common shares, par value $1.00 per
share, of the capital stock of the Company;

     WHEREAS, Sellers have made subordinated loans and equity contributions to
the Company, and First Reserve has made equity contributions to the Company;

     WHEREAS, prior to the date of this Agreement, the Company has subscribed
for and acquired 10,500 common shares, par value $1.00 per share, of the capital
stock of Amethyst II in consideration for the Company's assets and liabilities
identified in Schedule 0 to this Agreement;

     WHEREAS, as a result of the foregoing, the Company owns three direct
Subsidiaries (as defined below), Amethyst II, Petrodrill Six Limited, an
international business company organized with limited liability under the laws
of the British Virgin Islands ("Petrodrill Six"), and Petrodrill Seven Limited,
an international business company organized with limited liability under the
laws of the British Virgin Islands ("Petrodrill Seven" and together with
Petrodrill Six, the "Petrodrills");

     WHEREAS, simultaneously with the execution of this Agreement, Buyer and
First Reserve have executed an Exchange Agreement substantially in the form of
Exhibit A to this Agreement (the "Exchange Agreement") pursuant to which,
following the distribution to First Reserve of certain Amethyst II Shares (as
defined below) pursuant to Section 4.02(d), First Reserve desires to dispose of
its direct and indirect interests in the Petrodrills in accordance with, and
subject to the terms and conditions of, this Agreement and the Transaction
Documents (as defined below) (including the Exchange Agreement);

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     WHEREAS, Sellers desire to sell all of their direct and indirect interests
in the Petrodrills to Buyer, and Buyer desires to purchase all of Sellers'
direct and indirect interests in the Petrodrills, in accordance with, and
subject to the terms and conditions of, this Agreement and the Transaction
Documents (as defined below);

     NOW, THEREFORE, in consideration of the foregoing premises and of the
representations, warranties, covenants, agreements and conditions contained in
this Agreement, the Parties hereby agree as follows:

                                   ARTICLE I

                         DEFINITIONS AND INTERPRETATION

     1.01 Definitions. For all purposes of this Agreement, the following
capitalized terms shall have the meanings set forth below:

          "Additional Note" means a convertible senior note in the original
     principal amount of $32,000,000, substantially in the form of Exhibit B,
     made payable by Buyer to Drillpetro.

          "Affiliate" means, in respect of a referenced Person, any other Person
     that directly or indirectly controls, is controlled by or is under common
     control with that referenced Person (for purposes of this definition,
     "control" means, in respect of a Person, the power to direct or cause the
     direction of the management or policies of that Person, directly or
     indirectly, whether through the ownership of voting securities, by contract
     or otherwise); provided, however, that, for all purposes of this Agreement,
     UKGB shall be deemed to be an "Affiliate" of Maritima whether or not UKGB
     meets the foregoing definition.

          "Agency Agreements" means the agreements listed in Schedule 1.01A.

          "Agreement" means this Master Restructuring Agreement, including all
     Exhibits and Schedules to this Master Restructuring Agreement, and all
     amendments to any of the foregoing that may be made from time to time in
     accordance with the terms of this Master Restructuring Agreement.

          "Amethyst II" has the meaning given to that term in the recitals to
     this Agreement.

          "Amethyst II Shares" means common shares, par value US$1.00 per share,
     of the capital stock of Amethyst II.

          "Bank Letter of Credit" means an irrevocable standby letter of credit
     in favor of Buyer issued by a financial institution acceptable to Buyer in
     the form of Exhibit C.

          "BiGem" means BiGem Holdings N.V., a corporation organized with
     limited liability under the laws of the Netherlands Antilles.

          "Business Day" means a day upon which national banks operating in
     Houston, Texas and New York, New York are open for business.

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          "Buyer" has the meaning given to that term in the first paragraph of
     this Agreement.

          "Buyer SEC Documents" has the meaning given to that term in Section
     7.06.

          "Buy-Sell Parties" means Buyer, Sellers and First Reserve.

          "Closing" has the meaning given to that term in Section 4.01.

          "Closing Adjustment" means the difference (which, for the avoidance of
     doubt, may be a positive or negative number) equal to (a) the amount of any
     assets that are reflected on the Year-End Pro Forma Balance Sheet to be
     assets of Amethyst II that are determined to have been properly allocable
     to the Company or that have been expended in connection with the business
     or operations of the Company, minus (b) the sum of (i) the amount of any
     assets that are reflected on the Year-End Pro Forma Balance Sheet to be
     assets of the Company that are determined to have been properly allocable
     to Amethyst II or that have been expended in connection with the business
     or operations of Amethyst II and (ii) the amount of any assets that are
     contributed to the Company after December 31, 2000 that have been expended
     in connection with the business or operations of Amethyst II.

          "Closing Balance Sheet" means the cash basis balance sheet of the
     Company and Amethyst II as of that Closing Date (after giving effect to the
     transactions contemplated by this Agreement) prepared in accordance with
     GAAP and, to the extent not inconsistent with GAAP, using the same
     accounting policies that were used in preparing the Year-End Pro Forma
     Balance Sheet.

          "Closing Date" has the meaning given to that term in Section 4.01.

          "Code" means the Internal Revenue Code of 1986, as amended.

          "Company" has the meaning given to that term in the first paragraph of
     this Agreement.

          "Converted Stock" has the meaning given to that term in Section 5.09.

          "Convertible Notes" means the Purchase Notes and the Additional Note.

          "Drillpetro" has the meaning given to that term in the first paragraph
     of this Agreement.

          "Drillpetro Loan Interests" means lender interests in subordinated
     loans to the Company in the aggregate principal amount of $17,039,128.

          "Drillpetro Purchase Note" means a convertible senior note in the
     original principal amount of $42,277,804 substantially in the form of
     Exhibit B, made payable by Buyer to Drillpetro.

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          "Drillpetro Shares" means 5,088 Shares represented by the Company's
     Share Certificate Nos. 1 and 4.

          "Encumbrances" means mortgages, pledges, liens, encumbrances, security
     interests, charges, claims, preemptive or subscription rights, rights of
     first refusal or offer, options, put or call rights, warrants, consent
     rights, restrictive covenants, easements, conditional and installment sale
     agreements, activity and use limitations, deed restrictions and any other
     contractual limitations or restrictions or title imperfection of any kind
     or nature (but, for the avoidance of doubt, shall not include restrictions
     on transfer that may be imposed under federal, state, local, foreign and
     provincial securities laws).

          "Exchange Act" means the U.S. Securities Exchange Act of 1934, as
     amended.

          "Exchange Agreement" has the meaning given to that term in the
     recitals to this Agreement.

          "First Reserve" has the meaning given to that term in the first
     paragraph of this Agreement.

          "Fund VII" has the meaning given to that term in the first paragraph
     of this Agreement.

          "Fund VII Shares" means 150 Shares represented by the Company's Share
     Certificate No. 7.

          "Fund VIII" has the meaning given to that term in the first paragraph
     of this Agreement.

          "Fund VIII Shares" means 1,100 Shares represented by the Company's
     Share Certificate No. 8.

          "GAAP" means United States generally accepted accounting principles
     consistently applied.

          "Heads of Terms" means the Heads of Terms Agreement dated January 16,
     2001 by and among Buyer, Maritima, Sellers and Westville.

          "Indenture" has the meaning given to that term in Section 4.02(a).

          "Independent Accounting Firm" means PricewaterhouseCoopers N.V.

          "Joint Venture Companies" means the Company, Amethyst II, the
     Petrodrills, Pridemaritima, Petrodrill Engineering and BiGem.

          "Loan Interests" means the Drillpetro Loan Interests and the Techdrill
     Loan Interests.

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          "Macae Lease" means a lease by Pride do Brasil of real property owned
     by Maritima at Macae, Estado do Rio de Janeiro, Brazil, substantially in
     the form of Exhibit D.

          "Maritima" has the meaning given to that term in the first paragraph
     of this Agreement.

          "Material Adverse Effect" means an event or events that, individually
     or in the aggregate, (a) have had or could reasonably be expected to have a
     material adverse effect on the business, results of operations or financial
     condition of the Company or any of its Subsidiaries, including any event or
     events that have resulted or could reasonably be expected to result in a
     loss, cost or diminution in value of $100,000 or more, (b) have had or
     could reasonably be expected to have a material adverse effect on the
     ability of any Party to perform its obligations under, or in connection
     with, this Agreement or any Transaction Document or (c) prevent or could
     reasonably be expected to prevent the consummation of any of the
     transactions contemplated by this Agreement or any Transaction Document.

          "Minutes of Agreement" means the Minutes of Agreement Relating to the
     Petrobras Contracts dated July 2, 1998 by and among Drillpetro, Westville
     and Techdrill.

          "Mr. Efromovich" means Mr. German Efromovich, a resident of Brazil.

          "New Fee Agreements" means fee agreements substantially in the form of
     Exhibit E between Petrodrill Six or Petrodrill Seven, on the one hand, and
     Rapisardi and UKGB, on the other hand.

          "Party" and "Parties" have the meanings given to those terms in the
     first paragraph of this Agreement.

          "Petrobras" means Petroleo Brasileiro S.A., a corporation organized
     under the laws of Brazil.

          "Petrodrill Engineering" means Petrodrill Engineering N.V., a
     corporation organized with limited liability under the laws of the
     Netherlands Antilles.

          "Petrodrill Six" has the meaning given to that term in the fourth
     paragraph of this Agreement.

          "Petrodrill Seven" has the meaning given to that term in the fourth
     paragraph of this Agreement.

          "Petrodrills" has the meaning given to that term in the fourth
     paragraph of this Agreement.

          "Person" means any natural person, partnership, joint venture,
     corporation, limited liability company, limited liability partnership,
     association, business,

                                       5
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     unincorporated organization, trust, governmental authority, department or
     agency of a governmental authority or any other entity or organization.

          "Pride Common Stock" means common shares, no par value, of the capital
     stock of Buyer.

          "Pride do Brasil" means Pride do Brasil Ltda., a privately held
     company with limited liability organized under the laws of Brazil.

          "Pride Letter" means the letter from Buyer to Maritima and Sellers
     dated January 16, 2001 relating to the Heads of Terms and Supplemental
     Terms.

          "Pride Foramer" means Pride Foramer S.A.S., a company organized with
     limited liability under the laws of France.

          "Pridemaritima" means Pridemaritima Ltd. (formerly Formaritima Ltd.),
     an international business company organized with limited liability under
     the laws of the British Virgin Islands.

          "Purchase Agreement" means the Securities Purchase Agreement dated
     May 5, 1999, as amended by the Letter Agreements dated June 4, 1999,
     June 18, 1999, June 21, 1999 and July 14, 1999 and by the Put and Exchange
     Agreement dated September 14, 1999, by and between Buyer and Fund VIII.

          "Purchase Notes" means the Drillpetro Purchase Note and the Techdrill
     Purchase Note.

          "Rapisardi" means Rapisardi Investment Limited, an international
     business company organized with limited liability under the laws of the
     British Virgin Islands.

          "Registration Rights Agreement" means a registration rights agreement
     by and among Buyer, Sellers and Maritima substantially in the form of
     Exhibit F.

          "Relevant Buyer Affiliate" means each Affiliate of Buyer taking
     action, or which Buyer is required to cause to take action, in connection
     with this Agreement or any other Transaction Document or executing, or
     which Buyer is required to cause to execute, this Agreement or any other
     Transaction Document.

          "Relevant Maritima Affiliate" means each Affiliate of Maritima taking
     action, or which Maritima is required to cause to take action, in
     connection with this Agreement or any other Transaction Document or
     executing, or which Maritima is required to cause to execute, this
     Agreement or any other Transaction Document.

          "Rescheduled Note" means a senior promissory note in the original
     principal amount of $9,093,558.34, substantially in the form of Exhibit G,
     made payable by Maritima, Sellers and Mr. Efromovich (jointly and
     severally) to Buyer.

          "Securities Act" means the U.S. Securities Act of 1933, as amended.

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          "Seller Shares" means the Drillpetro Shares and the Techdrill Shares.

          "Sellers" has the meaning given to that term in the first paragraph of
     this Agreement.

          "September 14 Agreement" has the meaning given to that term in Section
     8.06.

          "Share" means a common share, par value $1.00 per share, of the
     capital stock of the Company, including the corporate and financial rights
     pertaining to that common share (including rights to dividends and
     distributions in shares or other securities, in kind, in cash or otherwise,
     but excluding any rights to the distribution of Amethyst II Shares
     contemplated by Section 4.02(d)) from and after the date of this Agreement.

          "Shareholders" means Drillpetro, Techdrill, Westville, Fund VII and
     Fund VIII.

          "Subsidiary" means, in respect of a referenced Person, any other
     Person of which more than 50% of either the equity interests, or control,
     is directly or indirectly beneficially owned by that referenced Person (for
     purposes of this definition, "control" means, in respect of a Person, the
     power to direct or cause the direction of the management or policies of
     that Person, directly or indirectly, whether through the ownership of
     voting securities, by contract or otherwise).

          "Supplemental Terms" means the Supplemental Terms Agreement dated
     January 16, 2001 by and among Buyer, Maritima, Sellers and Westville.

          "Taxes" means all federal, foreign, state and local net income, gross
     income, gross receipts, sales, use, ad valorem, value-added, franchise,
     withholding, payroll, employment, excise, property, excess profit or other
     taxes, together with any interest on those taxes and any penalties,
     additions to tax or additional amounts applicable to those taxes.

          "Tax Returns" means returns, information returns and statements and
     reports in respect of Taxes.

          "Techdrill" has the meaning given to that term in the first paragraph
     of this Agreement.

          "Techdrill Loan Interests" means lender interests in subordinated
     loans to the Company in the aggregate principal amount of $4,692,139.

          "Techdrill Purchase Note" means a convertible senior note in the
     original principal amount of $11,575,414 substantially in the form of
     Exhibit B, made payable by Buyer to Techdrill.

          "Techdrill Shares" means 1,387 Shares represented by the Company's
     Share Certificate Nos. 2 and 5.

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          "Transaction Documents" means all agreements, instruments, documents
     and other writings referenced in, or contemplated by, this Agreement or
     executed in connection with this Agreement or any of the agreements,
     instruments, documents and other writings referenced in, or contemplated
     by, this Agreement or executed in connection with the transactions
     contemplated by this Agreement or any of the foregoing agreements,
     instruments, documents or other writings.

          "Trustee" has the meaning given to that term in Section 4.02(a).

          "UKGB" means U.K. Guaranty & Bonding Corp. Limited, an international
     business company organized with limited liability under the laws of the
     Bahamas.

          "Westville" means Westville Management Corporation, an international
     business company organized with limited liability under the laws of the
     British Virgin Islands.

          "Workships" means Workships Contractors B.V., a company organized with
     limited liability under the laws of the Netherlands.

          "Year-End Pro Forma Balance Sheet" means the cash basis pro forma
     (giving effect to the transactions contemplated by this Agreement) balance
     sheet of the Company and Amethyst II as of December 31, 2000 that is
     attached to this Agreement as Exhibit R.

          "Year-End Cash Balance" means all of the current assets on the
     Company's balance sheet at the close of business on December 31, 2000.

          "$" means the U.S. dollar, the legal currency of the United States of
     America.

     1.02 Interpretation. In this Agreement, unless the context otherwise
requires, the singular shall include the plural, the masculine shall include the
feminine and neuter and vice versa. The terms "include," "includes" and
"including," when used in this Agreement, shall be deemed to be followed by the
words "without limitation." Each reference to an Article, Section, Exhibit or
Schedule in this Agreement shall be a reference to an Article or Section of, or
Exhibit or Schedule to, this Agreement unless otherwise specified. The words
"hereof," "herein," "hereto" and "hereunder" and words of similar import, when
used in this Agreement, shall, unless otherwise expressly specified, refer to
this Agreement as a whole and not to any particular provision of this Agreement.
Each reference in this Agreement to a given agreement or instrument shall be a
reference to that agreement or instrument as modified, amended, supplemented and
restated through the date as of which that reference is made. Headings in this
Agreement are for the convenience of the Parties and have no effect on the
meaning of this Agreement. The Parties acknowledge that each Party and its
counsel have reviewed and revised this Agreement and that any rule of
construction to the effect that any ambiguities are to be resolved against the
drafting party shall not be employed in the interpretation of this Agreement.

                                  ARTICLE II

                       PURCHASE AND SALE; CONSIDERATION

     2.01 Transfer of Shares. In accordance with, and subject to the terms and
conditions of, this Agreement and the other Transaction Documents, Sellers
shall, on the Closing Date, sell,

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convey, transfer, assign, set over and deliver to Buyer, and Buyer shall
purchase from Sellers, the Seller Shares, free and clear of all Encumbrances.

     2.02 Transfer of Loan Interests. In accordance with, and subject to the
terms and conditions of, this Agreement and the other Transaction Documents,
Sellers shall, on the Closing Date, sell, convey, transfer, assign, set over and
deliver to Buyer, and Buyer shall purchase from Sellers, the Loan Interests,
free and clear of all Encumbrances.

     2.03 Purchase Notes. The total consideration payable by Buyer to Sellers
for the sale, conveyance, transfer, assignment, set-over and delivery of the
Seller Shares and the Loan Interests in accordance with Sections 2.01 and 2.02
shall be as follows:

          (a) to Drillpetro for the Drillpetro Shares and the Drillpetro Loan
     Interests, the Drillpetro Purchase Note; and

          (b) to Techdrill for the Techdrill Shares and the Techdrill Loan
     Interests, the Techdrill Purchase Note.

The total consideration shall be paid to Sellers in accordance with
Section 4.02.

     2.04 Post-Closing Adjustment--Allocation Between the Company and
Amethyst II.

          (a) Buyer and Sellers shall, within five days after the Closing,
     appoint the Independent Accounting Firm to determine the Closing Adjustment
     within 30 days after the Independent Accounting Firm's appointment. Buyer
     and Sellers shall instruct the Independent Accounting Firm to include in
     its determination its calculation in reasonable detail of the Closing
     Adjustment and the Closing Balance Sheet. The Company, Amethyst II, Buyer
     and Sellers agree to cooperate with the Independent Accounting Firm and to
     provide the Independent Accounting Firm with the information the
     Independent Accounting Firm reasonably requests to enable the Independent
     Accounting Firm to make the required determination. The determination of
     the Independent Accounting Firm shall be binding on the Parties. The fees
     and costs of the Independent Accounting Firm associated with the
     determination required by this Section 2.04(a) shall be paid by the
     Company.

          (b) Upon final determination of the Closing Adjustment by binding
     determination of the Independent Accounting Firm in accordance with Section
     2.04(a), (i) if the Closing Adjustment is positive, the Company shall pay
     to Amethyst II the amount of that Closing Adjustment and (ii) if the
     Closing Adjustment is negative, Amethyst II shall pay to the Company the
     amount of that Closing Adjustment. The payment required by this Section
     2.04(b), if any, shall be made within 15 days following final determination
     of the Closing Adjustment.

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                                  ARTICLE III

       CANCELLATION AND RELEASE OF THE AGENCY AGREEMENTS AND MINUTES OF
                         AGREEMENT; NEW FEE AGREEMENTS

     3.01 Cancellation and Release; New Fee Agreements. In accordance with, and
subject to the terms and conditions of, this Agreement and the other Transaction
Documents, Drillpetro, UKGB, Rapisardi, Westville, Techdrill and the
Petrodrills, as applicable, shall, on the Closing Date, (a) cancel and terminate
the Agency Agreements, (b) partially cancel and terminate the Minutes of
Agreement in accordance with a deed of release, discharge, cancellation and
termination substantially in the form of Exhibit S, (c) fully and completely
release and discharge the other parties to the Agency Agreements from all
duties, liabilities, covenants and obligations under, and in connection with,
the Agency Agreements, (d) fully and completely release and discharge the other
parties to the Minutes of Agreement from certain duties, liabilities, covenants
and obligations under, and in connection with, the Minutes of Agreement in
accordance with a deed of release, discharge, cancellation and termination
substantially in the form of Exhibit S and (e) execute and deliver the New Fee
Agreements.

     3.02 Additional Note. The total consideration payable by Buyer for the
cancellation, termination, release and discharge contemplated by Section 3.01
shall be the Additional Note. The Additional Note shall be paid to Drillpetro by
request of Maritima on behalf of Drillpetro, UKGB and Rapisardi. The total
consideration shall be paid to Drillpetro in accordance with Section 4.02.

                                  ARTICLE IV

                                  THE CLOSING

     4.01 Time and Place. The (a) sale, conveyance, transfer, assignment, set
over and delivery of the Seller Shares and the Loan Interests to Buyer, (b)
delivery of the Purchase Notes to Sellers, (c) cancellation and termination of,
and release and discharge of duties, liabilities, covenants and obligations
under and in connection with, the Agency Agreements, (d) partial cancellation
and termination of, and release and discharge of certain duties, liabilities,
covenants and obligations under and in connection with, the Minutes of
Agreement, (e) execution and delivery of the Additional Note and the New Fee
Agreements, (f) consummation of the transactions contemplated by the Exchange
Agreement and (g) consummation of the other transactions contemplated by this
Agreement that, by their nature, are to be consummated at the Closing shall take
place at a closing (the "Closing") to be held at the offices of Baker Botts
L.L.P., 910 Louisiana, Houston, Texas 77002, at 10:00 a.m. (or another mutually
acceptable time) on the date of this Agreement (the time and date of the
Closing, the "Closing Date").

     4.02 Closing Sequence. The following actions in the sequence set forth in
this Section 4.02 shall be taken at the Closing. The actions set forth in this
Section 4.02 shall occur sequentially but shall be deemed to occur
simultaneously; provided, however, that none of the actions taken pursuant to
this Section 4.02 shall be valid, completed or binding until all of the actions
to be taken pursuant to this Section 4.02 have been completed.

          (a) Buyer shall contribute or shall cause the contribution to the
     Company the funds required to cause the satisfaction and discharge of the
     Indenture (the "Indenture") dated November 1, 1999 by and among the
     Company, Buyer, Maritima and Wilmington Trust Company, as trustee (the
     "Trustee").

          (b) The Company shall cause the satisfaction and discharge of the
     Indenture.

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          (c) The Company shall deliver to Maritima the Letter of Credit No.
     S173431 issued by HSBC Bank USA (formerly Republic National Bank of New
     York) on November 1, 1999 in favor of the Trustee.

          (d) The Company shall make a distribution to each Shareholder of one
     Amethyst II Share for each Share held by that Shareholder, so that Amethyst
     II Shares are distributed to the Shareholders as follows:

               (i) 5,088 of those Amethyst II Shares to Drillpetro;

               (ii) 2,775 of those Amethyst II Shares to Westville;

               (iii)  1,387 of those Amethyst II Shares to Techdrill;

               (iv) 1,100 of those Amethyst II Shares to Fund VIII; and

               (v) 150 of those Amethyst II Shares to Fund VII.

     In order to effectuate the foregoing distribution:

                (i) the Company shall deliver to each Shareholder a stock
           certificate representing the Amethyst II Shares distributed to that
           Shareholder duly endorsed to that Shareholder or accompanied by a
           stock power duly endorsed to that Shareholder;

                (ii) the Company, each Shareholder and Amethyst II shall execute
           and deliver any instruments of transfer of title required to transfer
           to that Shareholder good and valid title to the Amethyst II Shares
           distributed to that Shareholder; and

                (iii) Amethyst II shall cause the registration of the
           distribution of the Amethyst II Shares in accordance with this
           Section 4.02(d) to be reflected in the share register of Amethyst II.

          (e) (i) The parties to the agreements set forth on Schedule 4.02(e)
     shall cause the cancellation and termination of, and release and discharge
     of duties, liabilities, covenants and obligations under and in connection
     with, those agreements in accordance with a deed of release, discharge,
     cancellation and termination substantially in the form of Exhibit H, and
     Maritima shall deliver those deeds executed by Rapisardi, and (ii) the
     parties to the Minutes of Agreement shall cause the partial cancellation
     and termination of, and release and discharge of certain duties,
     liabilities, covenants and obligations under and in connection with, the
     Minutes of Agreement in accordance with a deed of release, discharge,
     cancellation and termination substantially in the form of Exhibit S.

          (f) The parties to the agreements set forth on Schedule 4.02(f) shall
     cause the cancellation and termination of, and release and discharge of
     duties, liabilities, covenants and obligations under and in connection
     with, those agreements in accordance with a deed of release, discharge,
     cancellation and termination substantially in the form of Exhibit I.

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          (g) The parties to the agreements set forth on Schedule 4.02(g) shall
     cause the cancellation and termination of, and release and discharge of
     duties, liabilities, covenants and obligations under and in connection
     with, those agreements in accordance with a deed of release, discharge,
     cancellation and termination substantially in the form of Exhibit J.

          (h) The parties to the agreements set forth on Schedule 4.02(h) shall
     execute and deliver a deed of confirmation substantially in the form of
     Exhibit K and deed of amendment and partial release, discharge,
     cancellation and termination substantially in the form of Exhibit L in
     respect of each of those agreements.

          (i) Sellers, Westville and First Reserve shall execute and deliver a
     shareholders agreement in respect of Amethyst II substantially in the form
     of Exhibit M.

          (j) The Company, the Petrodrills, Buyer and Maritima shall execute and
     deliver (A) a master amendment agreement substantially in the form of
     Exhibit N relating to each of (1) the Loan Agreement dated December 19,
     1998 among Petro Dia Three S.A. and Petro Dia Four S.A., Petrodrill Six and
     Mitsubishi (UK) p.l.c. and (2) the Loan Agreement dated December 19, 1998
     among Petro Dia Three S.A. and Petro Dia Four S.A., Petrodrill Seven and
     Mitsubishi (UK) p.l.c. and (B) any other documents or instruments
     contemplated by those master amendment agreements to which any of them are
     parties, and the Company shall deliver those master amendment agreements
     and other documents and instruments executed by all the other parties to
     those master amendment agreements and other documents and instruments.

          (k) Buyer and First Reserve shall perform their respective obligations
     under the Exchange Agreement.

          (l)  Drillpetro Shares, Techdrill Shares and Loan Interests

                (i) Drillpetro shall deliver to Buyer a stock certificate
           representing the Drillpetro Shares duly endorsed to Buyer or
           accompanied by a stock power duly endorsed to Buyer.

                (ii) Techdrill shall deliver to Buyer a stock certificate
           representing the Techdrill Shares duly endorsed to Buyer or
           accompanied by a stock power duly endorsed to Buyer.

                (iii) Drillpetro, Techdrill, Buyer and the Company shall execute
           and deliver a general assignment and assumption agreement relating to
           the Drillpetro Shares, Techdrill Shares and Loan Interests
           substantially in the form of Exhibit O.

                (iv) Drillpetro, Techdrill and Buyer shall execute any
           instruments of transfer of title required to transfer to Buyer good
           and valid title to the Drillpetro Shares, Techdrill Shares and Loan
           Interests, free and clear of all Encumbrances; and

                                       12
<PAGE>

                (v) The Company shall cause the registration of the transfer of
           the Drillpetro Shares and Techdrill Shares in accordance with this
           Section 4.02(l) to be reflected in the share register of the Company.

          (m)  Purchase Notes and Additional Note

                (i) Buyer and Drillpetro shall execute and deliver the
           Drillpetro Purchase Note and the Drillpetro Additional Note; and

                (ii) Buyer and Techdrill shall execute and deliver the Techdrill
           Purchase Note;

          (n) Buyer, Sellers and Maritima shall execute and deliver the
     Registration Rights Agreement.

          (o) Each of Petrodrill Six, Petrodrill Seven and UKGB shall execute
     and deliver the New Fee Agreements to which it is party, and Maritima shall
     deliver the New Fee Agreements executed by Rapisardi.

          (p) Maritima and each Seller shall cause those directors and officers
     of the Company and each of the Petrodrills listed in Schedule 4.02(p) to
     resign as of the Closing Date and shall provide to Buyer evidence of those
     resignations.

          (q) Pride shall execute and deliver to Maritima a letter of indemnity
     substantially in the form of Exhibit P.

          (r) Maritima, Sellers and Mr. Efromovich shall execute and deliver the
     Rescheduled Note.

          (s) Maritima, Sellers and Mr. Efromovich shall deliver the Bank Letter
     of Credit to Buyer.

          (t) Westville shall deliver to Maritima the promissory note and
     security agreement dated November 16, 1998 made by Maritima, Sellers and
     Mr. Efromovich in favor of Westville referencing an initial principal
     amount of $7,000,000 duly endorsed by Westville as fully released.

          (u)  Pride do Brasil and Maritima shall execute the Macae Lease.

          (v) Westville and Sellers shall execute and deliver a letter in
     respect of additional recoveries substantially in the form of Exhibit Q.

     4.03  Deliveries by Sellers.

          (a) In addition to any items the Sellers are required to deliver by
     other provisions of this Agreement, each Seller shall, at the Closing,
     deliver or cause to be delivered to Buyer and First Reserve the following
     items:

                                       13
<PAGE>

                (i) copies of any and all governmental and other third-party
           consents, waivers and approvals required by that Seller for the
           consummation of the transactions contemplated by this Agreement and
           the Transaction Documents;

                (ii) copies, certified by the Secretary or Assistant Secretary
           of each Seller for the benefit of Buyer, Westville and First Reserve,
           of corporate resolutions authorizing the execution and delivery of
           this Agreement and the Transaction Documents to which that Seller is
           party; and

                (iii) a certificate of the Secretary or Assistant Secretary of
           each Seller for the benefit of Buyer, Westville and First Reserve
           identifying the name and title and bearing the signature of the
           officers of that Seller authorized to execute and deliver this
           Agreement and the Transaction Documents to which that Seller is
           party.

          (b) Each Seller shall, at the Closing, execute and deliver or cause to
     be executed and delivered (i) written instructions to the Company's
     depositary, stock transfer agent or other appropriate party authorizing and
     directing the registration of the transfer of the Seller Shares from that
     Seller to Buyer, (ii) any other instruments necessary to amend the share
     registry of the Company to reflect the change in ownership of the Seller
     Shares and (iii) any documents required to demonstrate to the Registrar of
     Companies of the British Virgin Islands that the transfer of the Seller
     Shares from Sellers to the Buyer has occurred.

     4.04 Deliveries by Buyer. In addition to any items Buyer is required to
deliver by other provisions of this Agreement, Buyer shall, at the Closing,
deliver or cause to be delivered to Sellers, Maritima and First Reserve the
following items:

          (a) copies of any and all governmental and other third-party consents,
     waivers and approvals required by Buyer for the consummation of the
     transactions contemplated by this Agreement and the Transaction Documents;

          (b) copies, certified by the Secretary or Assistant Secretary of Buyer
     for the benefit of Sellers, Maritima and First Reserve, of corporate
     resolutions authorizing the execution and delivery of this Agreement and
     the Transaction Documents to which Buyer is party; and

          (c) a certificate of the Secretary or Assistant Secretary of Buyer for
     the benefit of Sellers, Maritima and First Reserve identifying the name and
     title and bearing the signature of the officers of Buyer authorized to
     execute and deliver this Agreement and the Transaction Documents to which
     Buyer is party.

     4.05 Deliveries by Maritima. In addition to any items Maritima is required
to deliver by other provisions of this Agreement, Maritima shall, at the
Closing, deliver or cause to be delivered to Buyer, Westville and First Reserve
the following items:

                                       14
<PAGE>

          (a) copies of any and all governmental and other third-party consents,
     waivers and approvals required by Maritima for the consummation of the
     transactions contemplated by this Agreement and the Transaction Documents;

          (b) copies, certified by the President of Maritima for the benefit of
     Buyer, Westville and First Reserve, of corporate resolutions authorizing
     the execution and delivery of this Agreement and the Transaction Documents
     to which Maritima is party; and

          (c) a certificate of the President of Maritima for the benefit of
     Buyer, Westville and First Reserve identifying the name and title and
     bearing the signature of the officers of Maritima authorized to execute and
     deliver this Agreement and the Transaction Documents to which Maritima is
     party.

                                   ARTICLE V

            REPRESENTATIONS AND WARRANTIES OF MARITIMA AND SELLERS

     Each of Maritima and Sellers represents and warrants to Buyer and First
Reserve prior to giving effect to the transactions contemplated by this
Agreement and the Transaction Documents that:

     5.01 Incorporation; Qualification. Each of Maritima, Sellers and the other
Relevant Maritima Affiliates is duly organized, validly existing and in good
standing under the laws of the jurisdiction of its incorporation and has all
requisite power and authority to own, lease and operate the properties and
assets each currently owns, leases or operates and to carry on its business as
is currently being conducted. Each of Maritima, Sellers and the other Relevant
Maritima Affiliates is duly licensed or duly qualified to do business and is in
good standing (to the extent the concept of good standing is applicable in such
jurisdiction) under the laws of each jurisdiction in which the character of the
properties and assets that it now owns, leases or operates or the nature of the
business it now conducts requires it to be so duly licensed or duly qualified,
except where the failure to be so duly licensed or duly qualified do not have a
Material Adverse Effect.

     5.02 Authorization of Agreement. Each of Maritima, Sellers and the other
Relevant Maritima Affiliates has full corporate power and authority (a) to
execute and deliver this Agreement and the Transaction Documents to which it is
party, (b) to consummate the transactions contemplated by this Agreement and the
Transaction Documents that are to be consummated by it, and (c) to perform all
of the terms and conditions of this Agreement and the Transaction Documents that
are to be performed by it. The execution and delivery by each of Maritima,
Sellers and the other Relevant Maritima Affiliates of this Agreement and the
Transaction Documents to which it is party, the consummation by each of
Maritima, Sellers and the other Relevant Maritima Affiliates of the transactions
contemplated by this Agreement and the Transaction Documents that are to be
consummated by it and the performance by each of Maritima, Sellers and the other
Relevant Maritima Affiliates of all of the terms and conditions of this
Agreement that are to be performed by it have been duly authorized and approved
by all requisite corporate action on the part of each of Maritima, Sellers and
the other Relevant Maritima Affiliates. Each of Maritima, Sellers and the other
Relevant Maritima Affiliates has

                                       15
<PAGE>

duly and validly executed and delivered this Agreement and the Transaction
Documents to which it is party. This Agreement and the Transaction Documents to
which any of Maritima, Sellers or the other Relevant Maritima Affiliates are
parties constitute the legal, valid and binding obligations of those of
Maritima, Sellers or the other Relevant Maritima Affiliates that are parties
thereto, enforceable against each of those of Maritima, Sellers or the other
Relevant Maritima Affiliates that are parties thereto in accordance with their
respective terms and conditions, except that such enforceability may be limited
by applicable bankruptcy, insolvency, reorganization, fraudulent conveyance,
moratorium or other similar laws affecting or relating to the enforcement of
creditors' rights generally and general principles of equity (regardless of
whether enforcement is considered in a proceeding in equity or at law or under
applicable legal codes).

     5.03 Consents and Approvals; No Violation. Except as set forth in Schedule
5.03, neither (a) the execution or delivery by each of Maritima, Sellers or the
other Relevant Maritima Affiliates of this Agreement or any of the Transaction
Documents to which it is party, nor (b) the fulfillment and compliance by each
of Maritima, Sellers and the other Relevant Maritima Affiliates with the terms
and conditions of this Agreement or the Transaction Documents to be complied
with by it, nor (c) the consummation by each of Maritima, Sellers and the other
Relevant Maritima Affiliates of the transactions contemplated by this Agreement
and the Transaction Documents that are to be consummated by it will:

          (w) conflict with, result in a breach of or require the consent of any
     Person under any of the terms, conditions or provisions of the articles of
     association, memorandum of association, articles of incorporation, bylaws
     or equivalent governing instruments of Maritima, any Maritima Seller or any
     other Relevant Maritima Affiliate;

          (x) violate any provision of, or require any filing, consent,
     authorization, notice or approval under, any law, regulation, order, award,
     judgment, writ, injunction or decree applicable to, or binding upon,
     Maritima, any Maritima Seller or any other Relevant Maritima Affiliate;

          (y) conflict with, result in a breach of or default (without regard to
     requirements of notice or the lapse of time or both) under, give rise to
     any right of termination, cancellation or acceleration under, or require
     any consent, authorization, notice or approval under, the terms, conditions
     or provisions of (i) any mortgage, note, bond, indenture, loan or credit
     agreement or other agreement or instrument evidencing indebtedness for
     borrowed money to which any of Maritima, Sellers or the other Relevant
     Maritima Affiliates is a party or by which any of them is bound or to which
     any of their properties is subject or (ii) any other agreement, contract,
     lease, license or other instrument to which any of Maritima, Sellers or the
     other Relevant Maritima Affiliates is a party or by which any of them is
     bound or to which any of their properties is subject; or

          (z) result in the creation or imposition of any Encumbrance on any of
     the assets of the Company, Amethyst II or any of their Subsidiaries or on
     any of the Shares or on any of the Loan Interests;

                                       16
<PAGE>

except, in the case of clauses (x) and (y) of this Section 5.03, to the extent
of any matters that do not, individually or in the aggregate, have a Material
Adverse Effect.

     5.04 No Brokers. Neither Maritima, any Maritima Seller or any other
Maritima Affiliate has, directly or indirectly, employed any broker, finder or
intermediary in connection with the transactions contemplated by this Agreement
or the Transaction Documents that might be entitled to a fee or commission from
Buyer, Westville, First Reserve, the Company or its Subsidiaries, Amethyst II or
its Subsidiaries or any Affiliate of Buyer upon the execution of this Agreement
or the Transaction Documents or the consummation of the transactions
contemplated by this Agreement and the Transaction Documents.

     5.05  Ownership of the Seller Shares and Loan Interests.

          (a) The Drillpetro Shares, which consist of 5,088 common shares, par
     value $1.00 per share, of the capital stock of the Company, are owned
     beneficially and of record by Drillpetro, which holds good and valid title
     to the Drillpetro Shares free and clear of all Encumbrances. The Techdrill
     Shares, which consist of 1,387 common shares, par value $1.00 per share, of
     the capital stock of the Company, are owned beneficially and of record by
     Techdrill, which holds good and valid title to the Techdrill Shares free
     and clear of all Encumbrances. The Drillpetro Shares and the Techdrill
     Shares have been duly authorized and validly issued, are fully paid and
     non-assessable and are currently issued and outstanding. None of the
     Drillpetro Shares or the Techdrill Shares have been issued in violation of,
     or are subject to, any third-party preemptive or subscription rights,
     rights of first refusal or offer, options, put or call rights, warrants,
     consent rights, restrictive covenants or any other agreements with any
     third party. Drillpetro has full legal right, power and authority to sell,
     convey, transfer, assign, set over and deliver the Drillpetro Shares to
     Buyer in accordance with, and subject to the terms and conditions of, this
     Agreement and the Transaction Documents. Techdrill has full legal right,
     power and authority to sell, convey, transfer, assign, set over and deliver
     the Techdrill Shares to Buyer in accordance with, and subject to the terms
     and conditions of, this Agreement and the Transaction Documents. Drillpetro
     will, at the Closing, sell, convey, transfer, assign, set over and deliver
     to Buyer the Drillpetro Shares, free and clear of any and all Encumbrances,
     and Buyer will, at the Closing, acquire good and valid title to the
     Drillpetro Shares, free and clear of any and all Encumbrances. Techdrill
     will, at the Closing, sell, convey, transfer, assign, set over and deliver
     to Buyer the Techdrill Shares, free and clear of any and all Encumbrances,
     and Buyer will, at the Closing, acquire good and valid title to the
     Techdrill Shares, free and clear of any and all Encumbrances.

          (b) Drillpetro holds good and valid title to the Drillpetro Loan
     Interests free and clear of all Encumbrances. Techdrill holds good and
     valid title to the Techdrill Loan Interests free and clear of all
     Encumbrances. None of the Drillpetro Loan Interests or the Techdrill Loan
     Interests have been repaid or discharged, in whole or in part. To the best
     knowledge of Maritima and Sellers having made diligent inquiry, the
     Drillpetro Loan Interests and the Techdrill Loan Interests are currently
     outstanding debt obligations of the Company. Drillpetro has full legal
     right, power and authority to sell, convey, transfer, assign, set over and
     deliver the Drillpetro Loan Interests to Buyer in accordance with, and
     subject to the terms and conditions of, this Agreement and the Transaction
     Documents. Techdrill has full legal right, power and authority to sell,
     convey, transfer, assign, set over and deliver the Techdrill Loan Interests
     to Buyer in accordance with, and subject to the terms and conditions of,
     this Agreement and the Transaction Documents.

                                       17
<PAGE>

     Drillpetro will, at the Closing, sell, convey, transfer, assign, set over
     and deliver to Buyer the Drillpetro Loan Interests, free and clear of any
     and all Encumbrances, and Buyer will, at the Closing, acquire good and
     valid title to the Drillpetro Loan Interests, free and clear of any and all
     Encumbrances. Techdrill will, at the Closing, sell, convey, transfer,
     assign, set over and deliver to Buyer the Techdrill Loan Interests, free
     and clear of any and all Encumbrances, and Buyer will, at the Closing,
     acquire good and valid title to the Techdrill Loan Interests, free and
     clear of any and all Encumbrances.

     5.06 Liabilities to Sellers. Except as set forth in Schedule 5.06, none of
the Company or any of its Subsidiaries has any liability or obligation to
Maritima, any Maritima Seller or any Affiliate of Maritima and none of Maritima,
any Maritima Seller or any Affiliate of Maritima or any shareholder, director,
officer or employee of any of the foregoing (a) has any authority to draw funds
on any bank account maintained by or on behalf of the Company or any Subsidiary
of the Company, (b) has any outstanding power of attorney (i) granted by the
Company or any Subsidiary of the Company or (ii) relating to or affecting any of
the assets or the conduct of business of the Company or any Subsidiary of the
Company or (c) is a director or officer of the Company or either of the
Petrodrills.

     5.07 No Illegal or Improper Transactions. Neither Maritima, any Maritima
Seller, any other Affiliate of Maritima or any shareholder, director, officer or
employee of any of the foregoing has or has caused to be (a) paid, offered or
promised to pay, or authorized the payment, directly or indirectly through any
other Person or firm, of any monies or anything of value to (i) any Person or
firm employed by or acting for or on behalf of any Person, whether private or
governmental, or (ii) any government official or employee or any political party
or candidate for political office, for the purpose of illegally inducing or
rewarding any action by any governmental official favorable to the Company or
any other Person in connection with the Company's or one of its Subsidiaries'
business or (b) taken any other act that, if taken by a Person subject to United
States law, would violate the United States Foreign Corrupt Practices Act.

     5.08 Disclosure. To the best knowledge of Maritima and Sellers having made
diligent inquiry, neither this Agreement nor any Transaction Document nor any
letter, certificate or other document furnished by Maritima, any Maritima Seller
or any other Relevant Maritima Affiliate to Buyer or any Relevant Buyer
Affiliate or any of their representatives pursuant to this Agreement or any
Transaction Document or in connection with the subject matter of this Agreement
or any Transaction Document contains any untrue statement of a material fact or
omits to state a material fact necessary to make the statements contained
therein and herein not misleading. There is no fact known to Maritima, any
Maritima Seller or any other Relevant Maritima Affiliate that has a Material
Adverse Effect that has not been set forth in this Agreement or heretofore
communicated to Buyer in writing.

     5.09 Convertible Notes, Converted Stock and Amethyst II Shares. Maritima
and Sellers have such knowledge and experience in financial and business matters
as enables each of them to evaluate the merits and risks of an investment in the
Convertible Notes, the Pride

                                       18
<PAGE>

Common Stock into which the Convertible Notes may be converted (the "Converted
Stock") and the Amethyst II Shares and each of Maritima and Sellers has,
independently and without reliance on Buyer, Westville, First Reserve, the
Company or its Subsidiaries, Amethyst II or its Subsidiaries or any Affiliate of
Buyer, made its own credit analysis and decision to invest in the Convertible
Notes, the Converted Stock and the Amethyst II Shares. Each of Maritima and
Sellers is an "accredited investor" as defined in Rule 501 under the Securities
Act. Each of Maritima and Sellers is acquiring the Convertible Notes, the
Converted Stock and the Amethyst II Shares for its own account and not with a
view to its resale or redistribution in violation of the Securities Act. Each of
Maritima and Sellers knows and understands that the Convertible Notes, the
Converted Stock and the Amethyst II Shares have not been registered under the
Securities Act, that no Person may transfer the Convertible Notes, the Converted
Stock or the Amethyst II Shares except pursuant to an effective registration
statement under the Securities Act or in a transaction which, in the written
opinion addressed to Buyer or Amethyst II, as the case may be, of counsel
acceptable to Buyer or Amethyst II, as the case may be, is exempt from the
registration requirements of the Securities Act and that a legend to that effect
shall be included on the Convertible Notes and the certificates representing the
Amethyst II Shares and, when issued, the certificates representing the Converted
Stock.

     5.10 No Undisclosed Actions. None of Maritima, Sellers or any Affiliate of
Maritima has taken any action, or failed to take any action, in respect of the
Company or either of the Petrodrills or their respective ownership or operations
or business (or caused the Company or the Petrodrills to take any such action or
fail to take any such action), nor, to the best knowledge of Maritima and
Sellers having made diligent inquiry, has the Company nor either of the
Petrodrills taken any such action, that has not been disclosed in writing to
Buyer or been taken or not taken without compliance with the Company's or the
Petrodrills' governing documents, applicable law, the Amethyst Financial Company
Ltd. Shareholders' Agreement dated November 5, 1998 by and among Sellers and
Westville or any other agreements among some or all of the Parties to this
Agreement or otherwise relating to or affecting any of the assets or the conduct
of business of the Company or any Subsidiary of the Company.

     5.11 Foreign Source Income. Each of Maritima, each Seller and UKGB is
classified as a foreign corporation for U.S. tax purposes or would be so
classified if such classification were relevant for any purpose. More than 80%
of the gross income of each of Maritima, each Seller and UKGB for the past three
years has been derived from sources without the United States.

                                  ARTICLE VI

                REPRESENTATIONS AND WARRANTIES OF FIRST RESERVE

     First Reserve hereby represents and warrants to Buyer, Sellers and Maritima
prior to giving effect to the transactions contemplated by this Agreement and
the Transaction Documents that:

       6.01  Authority. Each of Fund VIII and Fund VII has all requisite
partnership power and authority to execute and deliver this Agreement and to
consummate the transactions to be performed under this Agreement by that fund.
The execution and delivery of this Agreement and the consummation of the
transactions to be performed under this Agreement by each of Fund VIII and Fund
VII have been duly and validly authorized by all necessary action on the part of

                                       19
<PAGE>

the general partner of such fund, and no other partnership or similar
proceedings are necessary to authorize the execution and delivery of this
Agreement by Fund VIII or Fund VII or to consummate the transactions to be
performed under this Agreement by such fund. This Agreement has been duly and
validly executed and delivered by each of Fund VIII and Fund VII, and this
Agreement constitutes a valid and binding agreement of each of Fund VIII and
Fund VII, enforceable against it in accordance with its terms, except that the
enforcement may be subject to (a) bankruptcy, insolvency, reorganization,
fraudulent conveyance, moratorium or other similar laws now or hereafter in
effect relating to creditors' rights generally and (b) general principles of
equity and the discretion of the court before which any proceeding therefor may
be brought (regardless of whether such enforcement is considered in a proceeding
in equity or at law).

       6.02  Consents and Approval; No Violation. Neither the execution and
delivery of this Agreement by Fund VIII or Fund VII, the consummation of the
transactions to be performed under this Agreement by Fund VIII or Fund VII, nor
compliance by Fund VIII or Fund VII with any of the provisions of this Agreement
will (a) conflict with or result in any breach of any provisions of the
Agreement of Limited Partnership of Fund VIII or Fund VII, (b) require any
material consent, approval, authorization or permit of, or filing with or
notification to, any governmental authority, except for consents, approvals,
authorizations, permits, filings or notifications which have been obtained or
made, (c) result in a default (with or without due notice or lapse of time or
both) or give rise to any right of termination, cancellation or acceleration
under any of the terms, conditions or provisions of any material indentures or
loan or credit agreements and guaranties of any such obligations to which Fund
VIII or Fund VII is a party or by which Fund VIII or Fund VII or any of its
assets may be bound, except for such defaults (or rights of termination,
cancellation or acceleration) as to which requisite waivers or consents have
been obtained, or (d) violate any material order, writ, injunction, decree,
statute, rule or regulation applicable to Fund VIII or Fund VII or any of its
assets.

       6.03  Amethyst II Shares. Each of Fund VIII and Fund VII has such
knowledge and experience in financial and business matters as enables it to
evaluate the merits and risks of an investment in the Amethyst II Shares. Each
of Fund VIII and Fund VII is an "accredited investor" as such term is defined in
Rule 501 under the Securities Act. Each of Fund VIII and Fund VII is acquiring
the Amethyst II Shares for its own account and not with the view to resale or
redistribution thereof in violation of the Securities Act; provided, however,
that each of Fund VIII and Fund VII shall at all times retain full power and
authority over the transfer of its properties and assets. Each of Fund VIII and
Fund VII acknowledges that it may not transfer the Amethyst II Shares except
pursuant to an effective registration statement under the Securities Act or in a
transaction which, in the written opinion addressed to Amethyst II of counsel
acceptable to Amethyst II, is exempt from the registration requirements of the
Securities Act, and that a legend to such effect shall be included on the
certificate representing the Amethyst II Shares; provided, however, that First
Reserve shall not be required to deliver such opinion of counsel upon any
transfer of its Amethyst II Shares to Buyer pursuant to the provisions of the
Exchange Agreement and the Purchase Agreement.

       6.04  Broker's or Finder's Commissions. Neither Fund VII nor Fund VIII
has, directly or indirectly, employed any broker, finder or intermediary in
connection with the transactions contemplated by this Agreement or the
Transaction Documents that might be entitled to a fee or

                                       20
<PAGE>

commission from Buyer, Maritima, Sellers, Westville, the Company or its
Subsidiaries, Amethyst II or its Subsidiaries or any Affiliate of Buyer or
Maritima upon the execution of this Agreement or the Transaction Documents or
the consummation of the transactions contemplated by this Agreement and the
Transaction Documents.

                                  ARTICLE VII

                    REPRESENTATIONS AND WARRANTIES OF BUYER

     Buyer hereby represents and warrants to Sellers, Maritima and First Reserve
prior to giving effect to the transactions contemplated by this Agreement and
the Transaction Documents that:

     7.01 Incorporation; Qualification. Each of Buyer and the Relevant Buyer
Affiliates is duly organized, validly existing and in good standing under the
laws of the jurisdiction of its incorporation and has all requisite power and
authority to own, lease and operate the properties and assets each currently
owns, leases or operates and to carry on its business as is currently being
conducted. Each of Buyer and the Relevant Buyer Affiliates is duly licensed or
duly qualified to do business and is in good standing (to the extent the concept
of good standing is applicable in such jurisdiction) under the laws of each
jurisdiction in which the character of the properties and assets that it now
owns, leases or operates or the nature of the business it now conducts requires
it to be so duly licensed or duly qualified, except where the failure to be so
duly licensed or duly qualified do not have a Material Adverse Effect.

     7.02 Authorization of Agreement. Each of Buyer and the Relevant Buyer
Affiliates has full corporate power and authority (a) to execute and deliver
this Agreement and the Transaction Documents to which it is party, (b) to
consummate the transactions contemplated by this Agreement and the Transaction
Documents that are to be consummated by it, and (c) to perform all of the terms
and conditions of this Agreement and the Transaction Documents that are to be
performed by it. The execution and delivery by each of Buyer and the Relevant
Buyer Affiliates of this Agreement and the Transaction Documents to which it is
party, the consummation by each of Buyer and the Relevant Buyer Affiliates of
the transactions contemplated by this Agreement and the Transaction Documents
that are to be consummated by it and the performance by each of Buyer and the
Relevant Buyer Affiliates of all of the terms and conditions of this Agreement
that are to be performed by it have been duly authorized and approved by all
requisite corporate action on the part of each of Buyer and the Relevant Buyer
Affiliates. Each of Buyer and the Relevant Buyer Affiliates has duly and validly
executed and delivered this Agreement and the Transaction Documents to which it
is party. This Agreement and the Transaction Documents to which any of Buyer and
the Relevant Buyer Affiliates are parties constitute the legal, valid and
binding obligations of those of Buyer and the Relevant Buyer Affiliates that are
parties thereto, enforceable against each of those of Buyer and the Relevant
Buyer Affiliates that are parties thereto in accordance with their respective
terms and conditions, except that such enforceability may be limited by
applicable bankruptcy, insolvency, reorganization, fraudulent conveyance,
moratorium or other similar laws affecting or relating to the enforcement of
creditors' rights generally and general principles of equity (regardless of
whether enforcement is considered in a proceeding in equity or at law or under
applicable legal codes).

                                       21
<PAGE>

     7.03 Consents and Approvals; No Violation. Except as set forth in Schedule
7.03, neither (a) the execution or delivery by each of Buyer and the Relevant
Buyer Affiliates of this Agreement or any of the Transaction Documents to which
it is party, nor (b) the fulfillment and compliance by each of Buyer and the
Relevant Buyer Affiliates with the terms and conditions of this Agreement or the
Transaction Documents to be complied with by it, nor (c) the consummation by
each of Buyer and the Relevant Buyer Affiliates of the transactions contemplated
by this Agreement and the Transaction Documents that are to be consummated by it
will:

          (w) conflict with, result in a breach of or require the consent of any
     Person under any of the terms, conditions or provisions of the articles of
     association, memorandum of association, articles of incorporation, bylaws
     or equivalent governing instruments of Buyer or any Relevant Buyer
     Affiliate;

          (x) violate any provision of, or require any filing, consent,
     authorization, notice or approval under, any law, regulation, order, award,
     judgment, writ, injunction or decree applicable to, or binding upon, Buyer
     or any Relevant Buyer Affiliate;

          (y) conflict with, result in a breach of or default (without regard to
     requirements of notice or the lapse of time or both) under, give rise to
     any right of termination, cancellation or acceleration under, or require
     any consent, authorization, notice or approval under, the terms, conditions
     or provisions of (i) any mortgage, note, bond, indenture, loan or credit
     agreement or other agreement or instrument evidencing indebtedness for
     borrowed money to which any of Buyer or the Relevant Buyer Affiliates is a
     party or by which any of them is bound or to which any of their properties
     is subject or (ii) any other agreement, contract, lease, license or other
     instrument to which any of Buyer or the Relevant Buyer Affiliates is a
     party or by which any of them is bound or to which any of their properties
     is subject; or

          (z) result in the creation or imposition of any Encumbrance on any of
     the assets of Amethyst II or any of its Subsidiaries;

except, in the case of clauses (x) and (y) of this Section 7.03, to the extent
of any matters that do not, individually or in the aggregate, have a Material
Adverse Effect.

     7.04 No Brokers. Neither Buyer or any Relevant Buyer Affiliate has,
directly or indirectly, employed any broker, finder or intermediary in
connection with the transactions contemplated by this Agreement or the
Transaction Documents that might be entitled to a fee or commission from
Maritima, Sellers, First Reserve, the Company or its Subsidiaries, Amethyst II
or its Subsidiaries or any Affiliate of Maritima upon the execution of this
Agreement or the Transaction Documents or the consummation of the transactions
contemplated by this Agreement and the Transaction Documents.

     7.05 Amethyst II Shares. Westville has such knowledge and experience in
financial and business matters as enables it to evaluate the merits and risks of
an investment in the Amethyst II Shares and Westville has, independently and
without reliance on Maritima, Sellers, First Reserve, the Company or its
Subsidiaries, Amethyst II or its Subsidiaries or any Affiliate of

                                       22
<PAGE>

Maritima, made its own credit analysis and decision to invest in the Amethyst II
Shares. Westville is an "accredited investor" as defined in Rule 501 under the
Securities Act. Westville is acquiring the Amethyst II Shares for its own
account and not with a view to its resale or redistribution in violation of the
Securities Act. Westville knows and understands that the Amethyst II Shares have
not been registered under the Securities Act, that Westville may not transfer
the Amethyst II Shares except pursuant to an effective registration statement
under the Securities Act or in a transaction which, in the written opinion
addressed to Amethyst II of counsel acceptable to Amethyst II, is exempt from
the registration requirements of the Securities Act and that a legend to that
effect shall be included on the certificates representing the Amethyst II
Shares.

     7.06 Buyer SEC Documents. Each report, schedule, registration statement and
definitive proxy statement filed by Buyer with the SEC since January 1, 2000
(collectively, the "Buyer SEC Documents") complied, as of the date of its
filing, with the requirements of the Securities Act or the Exchange Act, as the
case may be, and the rules and regulations of the SEC under the Securities Act
or the Exchange Act, as the case may be, applicable to that Buyer SEC Document.
No Buyer SEC Document, as of the date of its filing, contained any untrue
statement of a material fact or omitted to state a material fact required to be
stated in that Buyer SEC Document or necessary to make the statements in that
Buyer SEC Document not misleading in light of the circumstances under which
those statements were made. The financial statements of Buyer included in the
Buyer SEC Documents, as of their date of filing, complied as to form in all
material respects with the published rules and regulations of the SEC with
respect to those financial statements, were prepared in accordance with GAAP
applied on a consistent basis during the periods involved (except as may be
indicated in the notes to those financial statements or, in the case of
unaudited financial statements, as permitted by Rule 10-01 of Regulation S-X of
the SEC) and fairly presented, in accordance with applicable requirements of
GAAP applied on a consistent basis (subject, in the case of unaudited financial
statements, to normal, recurring adjustments, none of which are material), the
consolidated financial position of Buyer and its consolidated subsidiaries as of
the date of those financial statements and the consolidated results of
operations and the consolidated cash flows of Buyer and its consolidated
subsidiaries for the periods presented in those financial statements.

     7.07 Eligibility to Use Form S-3. Buyer meets the requirements for use of
Form S-3 under the Securities Act and has filed all material reports required to
be filed under the Exchange Act in a timely manner during the last 12 months.

                                 ARTICLE VIII

                      ADDITIONAL AGREEMENTS AND COVENANTS

     8.01 Covenants of Maritima. Maritima shall cause each Maritima Seller and
each other Affiliate of Maritima to perform its duties, liabilities, covenants
and obligations under, and in connection with, this Agreement and the other
Transaction Documents.

     8.02 Covenant of Buyer. Buyer shall cause each Affiliate of Buyer to
perform its duties, liabilities, covenants and obligations under, and in
connection with, this Agreement and the other Transaction Documents.

                                       23
<PAGE>

     8.03 Convertible Notes; Converted Stock. Each of Maritima and each Seller
acknowledges that neither the Convertible Notes nor the Converted Stock has been
registered under the Securities Act and that a legend to that effect shall be
included on the Convertible Notes and, when issued, on the certificates
representing the Converted Stock. Neither Maritima nor either Seller shall
transfer the Convertible Notes or the Converted Stock except pursuant to an
effective registration statement under the Securities Act or in a transaction
which, in the written opinion addressed to Buyer of counsel acceptable to Buyer,
is exempt from the registration requirements of the Securities Act. Each of
Maritima and each Seller is an "accredited investor" (as such term is defined in
Rule 501(a) promulgated under the Securities Act) and has, independently and
without reliance on Buyer or any of its Affiliates, made its own credit analysis
and decision to invest in the Convertible Notes and the Converted Stock and
agrees that neither Buyer nor any of its Affiliates shall have any
responsibility or liability for the accuracy or adequacy of any information
based on which each of Maritima and each Seller made that analysis or decision
other than to the extent of Buyer's representations in this Agreement.

     8.04 Amethyst II Shares. Each of Westville, Sellers and First Reserve
acknowledges that the Amethyst II Shares have not been registered under the
Securities Act and that a legend to that effect shall be included on the
certificates representing the Amethyst II Shares. Neither of Westville, Sellers
or First Reserve shall transfer the Amethyst II Shares except pursuant to an
effective registration statement under the Securities Act or in a transaction
which, in the written opinion addressed to Amethyst II of counsel acceptable to
Amethyst II, is exempt from the registration requirements of the Securities Act;
provided, however, that First Reserve shall not be required to deliver such
opinion of counsel upon any transfer of its Amethyst II Shares to Buyer pursuant
to the provisions of the Exchange Agreement and the Purchase Agreement. Each of
Westville, Sellers and First Reserve is an "accredited investor" (as such term
is defined in Rule 501(a) promulgated under the Securities Act) and has,
independently and without reliance on any other Party or any of its Affiliates,
made its own credit analysis and decision to invest in the Amethyst II Shares
and agrees that no other Party nor any of its Affiliates shall have any
responsibility or liability for the accuracy or adequacy of any information
based on which each of Westville, Sellers and First Reserve made that analysis
or decision.

     8.05 Obligations of the Joint Venture Companies. Each of Buyer, Maritima,
Sellers and First Reserve shall vote or cause to be voted its shares and the
shares of its Affiliates in, and shall take or cause to be taken all actions
that may be taken as a result of its direct or indirect interests in, each Joint
Venture Company to cause that Joint Venture Company to comply with its duties,
liabilities, covenants and obligations under, and in connection with, this
Agreement and the other Transaction Documents.

     8.06 Waiver of Option to Purchase Fund VII Shares and Fund VIII Shares. In
the event Buyer and First Reserve perform their respective obligations under the
Exchange Agreement pursuant to Section 4.02(k), (a) Sellers hereby waive their
right to exercise the option granted to them by Buyer pursuant to the letter
agreement dated September 14, 1999 between Buyer and Sellers (the "September 14
Agreement") to the extent relating to the Shares exchanged by First Reserve
pursuant to the Exchange Agreement and (b) Buyer and Sellers hereby agree that
the Amethyst II Shares distributed to First Reserve shall be subject to the
September 14 Agreement and that references in the September 14 Agreement to (a)
"Exchangeable Stock" and "Amethyst Stock" shall be references to those Amethyst
II Shares, (b) "Amethyst" shall be to Amethyst II

                                       24
<PAGE>

and (c) the "Purchase Agreement" shall be to the Purchase Agreement as amended
by the Exchange Agreement.

     8.07 Further Assurances. From time to time before, on or after the Closing
Date, each Party shall, as and when reasonably requested by any other Party,
execute and deliver or cause to be executed and delivered to that other Party
any and all additional agreements, documents, instruments and writings, and take
or cause to be taken any and all further action, that, in the reasonable opinion
of that other Party or its counsel, are required to consummate the transactions
contemplated by this Agreement or any Transaction Document or to demonstrate or
evidence compliance with the terms of this Agreement or any Transaction Document
or the accuracy of any representation or warranty set forth in this Agreement or
any Transaction Document.

                                  ARTICLE IX

                                     TAXES

     9.01  Liability for Taxes.

          (a) The Company shall be responsible for filing or causing to be filed
     all Tax Returns or reports of the Company and each of its Subsidiaries and
     for making or causing to be made any required payments with respect to
     those returns or reports. Amethyst II shall be responsible for filing or
     causing to be filed all Tax Returns or reports of Amethyst II and each of
     its Subsidiaries and for making or causing to be made any required payments
     with respect to those returns or reports.

          (b) Unless the Buy-Sell Parties otherwise agree in writing, or unless
     a Party which is required to prepare a Tax Return shall have received an
     opinion of counsel that there is no reasonable basis for preparing such
     return in compliance with the remainder of this sentence, all Tax Returns
     (including amendments thereto) described in this Section 9.01(b) filed
     after the date of this Agreement for any taxable period ending on or before
     or including the Closing Date, in the absence of a controlling change in
     law, shall be prepared on a basis consistent with the elections, accounting
     methods, conventions and principles of taxation used for the most recent
     taxable periods for which Tax Returns involving similar matters have been
     filed. Upon request of a nonresponsible Buy-Sell Party, the party
     responsible for preparation of a particular Tax Return for such periods
     under this Section 9.01(b) shall make available a draft of such Tax Return
     (or relevant portions thereof) for review and comment by such
     nonresponsible Party. Subject to the provisions of this Agreement, all
     decisions relating to the preparation of Tax Returns shall be made in the
     sole discretion of the party responsible under this Agreement for such
     preparation.

          (c) Notwithstanding any other provision of this Agreement to the
     contrary, any liability for stock transfer Taxes, stamp Taxes or similar
     Taxes incurred in connection with this Agreement and the Transaction
     Documents and the transactions contemplated by this Agreement and the
     Transaction Documents shall be borne by the Company, and the Company shall
     file, to the extent required by law, all necessary Tax Returns and other
     documentation with respect to all such Taxes.

                                       25
<PAGE>

          (d) Sellers and First Reserve will cooperate with Buyer to enable the
     Company, the Petrodrills and Amethyst II to elect to be classified for
     federal tax purposes as a partnership or a disregarded entity pursuant to
     Treas. Reg. section 301.7701-3. With respect to such elections, the Company
     and Amethyst II hereby covenant that the Company and Amethyst II shall (i)
     cause such elections to be properly filed, (ii) cause the effective date of
     the election with respect to the Company to be prior to the Closing Date
     and (iii) cause the effective date of the election with respect to Amethyst
     II to be at least one day prior to the effective date of the election with
     respect to the Company. If Sellers are required to pay any U.S. federal
     income taxes solely as a result of the election made pursuant to this
     Section 9.01(d), Buyer shall reimburse Sellers for those U.S. federal
     income taxes; provided, however, that this sentence, as applicable to a
     Seller, shall have no force or effect if that Seller is or has ever been
     engaged in any U.S. business or trade or is or has ever been otherwise
     subject to U.S. federal income taxes for any reason other than the election
     made pursuant to this Section 9.01(d).

     9.02 Cooperation. Each Party shall provide another Party with any
assistance that may reasonably be requested by that other Party in connection
with the preparation of any Tax Return, any audit or other examination by any
Taxing authority or any judicial or administrative proceedings relating to
liability for Taxes, and each of the Parties shall retain and provide the
requesting party with any records or information that may be relevant to such
Tax Return, audit, examination, proceedings or determination. The information
obtained by each Party pursuant to this Section 9.02 or pursuant to any other
Section of this Agreement providing for the sharing of information or review of
any Tax Return or other schedule relating to Taxes shall be kept confidential by
the Parties.

                                   ARTICLE X

                              REMEDIES CUMULATIVE

       Except as otherwise expressly provided in this Agreement, the remedies
provided in this Agreement (including termination) shall be cumulative and shall
not preclude assertion by any Party of any other rights or the seeking of any
other remedies, including equitable remedies.

                                  ARTICLE XI

                                   EXPENSES

     Except to the extent specifically provided in this Agreement and whether or
not the transactions contemplated by this Agreement and the Transaction
Documents are consummated, all legal and other costs and expenses in connection
with this Agreement and the Transaction Documents and the transactions
contemplated by this Agreement and the Transaction Documents shall be borne by
the Party that incurred such costs and expenses.

                                  ARTICLE XII

                                 MISCELLANEOUS

     12.01 Survival of Representations and Warranties. The representations and
warranties set forth in this Agreement and in any certificate or instrument
delivered in connection with this Agreement shall survive the Closing.

                                       26
<PAGE>

     12.02 Notices. All notices and other communications given under this
Agreement shall be in writing and shall be deemed to have been given when
actually delivered to the recipient by internationally recognized courier,
telecopy or personal delivery. Such notices and other communications shall be
sent to the Parties at the respective addresses indicated below:

               (A) If to Buyer, Westville, the Company or Amethyst II, to:

                   Pride International, Inc.
                   Attn: Corporate Secretary
                   5847 San Felipe, Suite 3300
                   Houston, Texas 77057
                   Telecopy: 713-914-9796

               (B) If to Maritima or the Maritima Sellers, to:

                   Maritima Petroleo e Engenharia Ltda.
                   Avenida Almirante Barroso,
                   52 Gr. 3400
                   Centro
                   Rio de Janeiro
                   Brazil
                   Telecopy: 55-21-220-6566

               (C) If to First Reserve, to:

                   c/o First Reserve Corp.
                   Attn: Thomas Denison, Esq.
                   1801 California Street
                   Denver, Colorado 80202
                   Telecopy: 303-382-1275

                   with a copy to:

                   Gibson, Dunn & Crutcher LLP
                   Attn: Beau Stark
                   1801 California, Suite 4100
                   Denver, Colorado 80202
                   Telecopy: 303-313-2839

or to such other address or to the attention of such other person as the
recipient party has specified by prior written notice to the sending party.

     12.03 Entire Agreement; No Waivers. This Agreement, together with the
Schedules and Exhibits to this Agreement, sets forth the entire agreement and
understanding of the parties with respect to the transactions contemplated by
this Agreement and supersedes all prior agreements, arrangements and
understandings relating to the subject matter of this Agreement, including the
Heads of Terms, the Supplemental Terms and the Pride Letter. No representation,
warranty,

                                       27
<PAGE>

promise, inducement or statement of intention has been made by any Party which
is not embodied in this Agreement, and no Party shall be bound by, or liable
for, any alleged representation, warranty, promise, inducement or statement or
intention not set forth in this Agreement. This Agreement may be amended,
modified, superseded or canceled, and any of the terms, provisions,
representations, warranties or conditions of this Agreement may be waived, only
by a written instrument executed by all of the Parties or, in the case of a
waiver, by the Party waiving compliance. The failure of any Party at any time or
times to require performance of any provision of this Agreement shall in no
manner affect the right of that Party later to enforce that provision. No waiver
by any Party of any condition, or of the breach of any term, provision,
representation or warranty contained in this Agreement or in any written
statements, certificates or other such documents to be delivered pursuant to
this Agreement or in connection with the transactions contemplated by this
Agreement, whether by conduct or otherwise, in any one or more instances, shall
be deemed to be or construed as (i) a further or continuing waiver of any such
condition or breach, (ii) a waiver of any other condition or breach or (iii) a
breach of any other term, provision, representation or warranty.

     12.04 Governing Law; Jurisdiction; Venue. THIS AGREEMENT SHALL BE GOVERNED
BY THE LAWS OF THE STATE OF TEXAS WITHOUT GIVING EFFECT TO CONFLICTS OF LAW
PRINCIPLES OF THOSE LAWS THAT WOULD APPLY THE LAWS OF A DIFFERENT JURISDICTION.
THE PARTIES HEREBY SUBMIT TO THE NONEXCLUSIVE JURISDICTION OF THE UNITED STATES
DISTRICT COURT FOR THE SOUTHERN DISTRICT OF TEXAS, HOUSTON DIVISION, FOR
PURPOSES OF ALL LEGAL PROCEEDINGS ARISING OUT OF OR RELATING TO THIS AGREEMENT
OR THE TRANSACTIONS CONTEMPLATED HEREBY. EACH PARTY IRREVOCABLY WAIVES, TO THE
FULLEST EXTENT PERMITTED BY LAW, ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER
HAVE TO THE LAYING OF THE VENUE OF ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT
AND ANY CLAIM THAT ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT HAS BEEN BROUGHT
IN AN INCONVENIENT FORUM. EACH PARTY HEREBY WAIVES ANY AND ALL RIGHT TO TRIAL BY
JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE
TRANSACTIONS CONTEMPLATED HEREBY.

     12.05 Headings. The headings contained in this Agreement are for reference
purposes only and shall not affect in any way the meaning or interpretation of
this Agreement.

     12.06 Assignments and Third Parties. This Agreement shall be binding upon
and inure to the benefit of the Parties and their respective successors and
assigns. No Party shall assign this Agreement or any part of this Agreement
without the prior written consent of the other Party, except that any Party may,
at any time after the Closing, assign its rights but not its obligations under
this Agreement to an Affiliate. Nothing in this Agreement shall entitle any
Person other than Buyer, Sellers, First Reserve, Maritima, Westville, the
Company and Amethyst II and their respective permitted successors and assigns to
any claim, cause of action, remedy or right of any kind.

     12.07 Severability. If any term or other provision of this Agreement is
invalid, illegal or incapable of being enforced by any rule of law or public
policy, all other conditions and

                                       28
<PAGE>

provisions of this Agreement shall nevertheless remain in full force and effect
so long as the economic or legal substance of the transactions contemplated by
this Agreement is not affected in any manner adverse to any Party. Upon any
binding determination that any term or other provision is invalid, illegal or
incapable of being enforced, the Parties shall negotiate in good faith to modify
this Agreement so as to effect the original intent of the Parties as closely as
possible to the end that the transactions contemplated by this Agreement may be
completed to the extent possible.

     12.08 Counterparts. This Agreement may be executed in any number of
counterparts, each of which counterparts shall be deemed to be an original and
all of which together shall constitute but one and the same agreement.


               [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                       29
<PAGE>

       IN WITNESS WHEREOF, the Parties have caused this Agreement to be executed
and delivered as of the date first written above.

                              PRIDE INTERNATIONAL, INC.


                              By: /s/ Robert W. Randall
                                 -----------------------------------
                                 Name: Robert W. Randall
                                 Title:

                              DRILLPETRO INC.


                              By: /s/ German Efromovich
                                 -----------------------------------
                                 Name: German Efromovich
                                 Title:

                              TECHDRILL INC.


                              By: /s/ German Efromovich
                                 -----------------------------------
                                 Name: German Efromovich
                                 Title:

                              FIRST RESERVE FUND VIII, L.P.


                              By: First Reserve GP VIII, L.P.,
                                  its General Partner

                              By: First Reserve Corporation,
                                  its General Partner


                              By:  /s/ Thomas R. Denison
                                  -----------------------------------
                                 Thomas R. Denison
                                  Managing Director



<PAGE>

                              FIRST RESERVE FUND VII, LIMITED
                              PARTNERSHIP

                              By: First Reserve GP VII, L.P.,
                                  its General Partner

                              By: First Reserve Corporation,
                                  its General Partner


                              By: /s/ Thomas R. Denison
                                 -----------------------------------
                                  Thomas R. Denison
                                  Managing Director

                              MARITIMA PETROLEO E
                              ENGENHARIA LTDA.


                              By: /s/ German Efromovich
                                 -----------------------------------
                                 Name: German Efromovich
                                 Title:

                              WESTVILLE MANAGEMENT CORPORATION


                              By: /s/ Robert W. Randall
                                 -----------------------------------
                                 Name: Robert W. Randall
                                 Title:

                              AMETHYST FINANCIAL COMPANY LTD.


                              By: /s/ Robert W. Randall
                                 -----------------------------------
                                 Name: Robert W. Randall
                                 Title:

                              PRIDE AMETHYST II LTD.


                              By: /s/ German Efromovich
                                 -----------------------------------
                                 Name: German Efromovich
                                 Title:



<PAGE>

                                   EXHIBIT A
                           FORM OF EXCHANGE AGREEMENT
<PAGE>

                                   EXHIBIT B
                        FORM OF CONVERTIBLE SENIOR NOTE
<PAGE>

                                   EXHIBIT C
                         FORM OF BANK LETTER OF CREDIT
<PAGE>

                                   EXHIBIT D
                              FORM OF MACAE LEASE


<PAGE>

                                   EXHIBIT E
                           FORM OF NEW FEE AGREEMENT
<PAGE>

                                   EXHIBIT F
                     FORM OF REGISTRATION RIGHTS AGREEMENT
<PAGE>

                                   EXHIBIT G
                            FORM OF RESCHEDULED NOTE


<PAGE>

                                   EXHIBIT H
                 FORM OF DEED RELATING TO THE AGENCY AGREEMENTS


<PAGE>

                                   EXHIBIT I
                    FORM OF DEED RELATING TO SECTION 4.02(f)
<PAGE>

                                   EXHIBIT J
                    FORM OF DEED RELATING TO SECTION 4.02(g)
<PAGE>

                                   EXHIBIT J
                    FORM OF DEED RELATING TO SECTION 4.02(g)
<PAGE>

                                   EXHIBIT K
            FORM OF DEED OF CONFIRMATION RELATING TO SECTION 4.02(h)


<PAGE>

                                   EXHIBIT L
   FORM OF DEED OF AMENDMENT AND PARTIAL RELEASE, DISCHARGE, CANCELLATION AND
                    TERMINATION RELATING TO SECTION 4.02(H)
<PAGE>

                                   EXHIBIT M
                   FORM OF AMETHYST II SHAREHOLDERS AGREEMENT
<PAGE>

                                   EXHIBIT N
                       FORM OF MASTER AMENDMENT AGREEMENT


<PAGE>

                                   EXHIBIT O
              FORM OF GENERAL ASSIGNMENT AND ASSUMPTION AGREEMENT


<PAGE>

                                   EXHIBIT P
                          FORM OF LETTER OF INDEMNITY


<PAGE>

                                   EXHIBIT Q
               FORM OF LETTER IN RESPECT OF ADDITIONAL RECOVERIES
<PAGE>

                                   EXHIBIT R
                        YEAR-END PRO FORMA BALANCE SHEET
<PAGE>

                                   EXHIBIT S
               FORM OF DEED RELATING TO THE MINUTES OF AGREEMENT