TEJAS GAS CORP
8-K, 1996-07-22
NATURAL GAS TRANSMISSION
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    FORM 8-K

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


         Date of Report (Date of
         earliest event reported).........................July 22, 1996

                              TEJAS GAS CORPORATION
             (Exact name of registrant as specified in its charter)

                                    Delaware
                 (State or other jurisdiction of incorporation)


        0-17389                                              76-0263364
(Commission File Number)                                  (I.R.S. Employer
                                                       Identification Number)

1301 McKinney, Suite 700
   Houston, Texas                                              77010
(Address of Principal                                        (Zip Code)
  Executive Offices)

                          Registrant's telephone number
                       including area code: (713) 658-0509

<PAGE>

ITEM 7.     FINANCIAL STATEMENTS AND EXHIBITS.

            Explanatory Note:  This Current Report on Form 8-K is being filed
            for the purpose of filing Exhibits 1(a) and 1(b) hereof in
            connection with the Registrant's Registration Statement on Form S-3
            (Reg. No. 333-06207), which became effective July 3, 1996.

            (c)   Exhibits.

            1(a)  U.S. Purchase Agreement

            1(b)  International Purchase Agreement
<PAGE>
                                   Signature

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                              TEJAS GAS CORPORATION

Date:    June 22, 1996        By: /s/ JAMES W. WHALEN
                                      James W. Whalen
                                       Executive Vice President and Chief
                                       Financial Officer (principal financial
                                       officer and principal accounting officer)

                                                                  EXHIBIT 1(a)
                              TEJAS GAS CORPORATION
                            (a Delaware corporation)

                        2,260,000 SHARES OF COMMON STOCK

               ---------------------------------------------------

                             U.S. PURCHASE AGREEMENT

               ---------------------------------------------------

Dated:  July ___, 1996

                                TABLE OF CONTENTS

U.S. PURCHASE AGREEMENT......................................................1

SECTION  1.    REPRESENTATIONS AND WARRANTIES................................4
               (a)    REPRESENTATIONS AND WARRANTIES BY THE COMPANY..........4
                      (1)    Compliance with Registration Requirements.......4
                      (2)    Incorporated Documents..........................5
                      (3)    Independent Accountants.........................5
                      (4)    Financial Statements............................5
                      (5)    No Material Adverse Change in Business..........6
                      (6)    Good Standing of the Company....................6
                      (7)    Good Standing of Subsidiaries...................6
                      (8)    Capitalization..................................7
                      (9)    Authorization of Agreements.....................7
                      (10)   Authorization of Common Stock...................7
                      (11)   Absence of Defaults and Conflicts...............8
                      (12)   Violation of Law................................9
                      (13)   Absence of Proceedings..........................9
                      (14)   Accuracy of Exhibits............................9
                      (15)   Description of the Securities...................9
                      (16)   Absence of Further Requirements.................9
                      (17)   Possession of Licenses and Permits..............9
                      (18)   Title to Property..............................10
                      (19)   Investment Company Act.........................10
                      (20)   Derivatives Business...........................10
                      (21)   Compliance with Cuba Act.......................10
               (b)    OFFICER'S CERTIFICATES................................10

SECTION  2.    SALE AND DELIVERY TO INTERNATIONAL UNDERWRITERS; CLOSING.....11
               (a)    INITIAL SECURITIES....................................11
               (b)    OPTION SECURITIES.....................................11
               (c)    PAYMENT...............................................11
               (d)    DENOMINATIONS; REGISTRATION...........................12

SECTION  3.    COVENANTS OF THE COMPANY.....................................12
               (a)    COMPLIANCE WITH SECURITIES REGULATIONS AND
                      COMMISSION REQUESTS...................................12
               (b)    FILING OF AMENDMENTS..................................13
               (c)    DELIVERY OF REGISTRATION STATEMENTS...................13
               (d)    DELIVERY OF PROSPECTUSES..............................13
               (e)    CONTINUED COMPLIANCE WITH SECURITIES LAWS.............13
               (f)    BLUE SKY QUALIFICATIONS...............................14
               (g)    RULE 158..............................................14
               (h)    USE OF PROCEEDS.......................................15
               (i)    LISTING...............................................15
               (j)    RESTRICTION ON SALE OF SECURITIES.....................15
               (k)    REPORTING REQUIREMENTS................................15

SECTION  4.    PAYMENT OF EXPENSES..........................................15
               (a)    EXPENSES..............................................15
               (b)    TERMINATION OF AGREEMENT..............................15

SECTION  5.    CONDITIONS OF U.S. UNDERWRITERS' OBLIGATIONS.................16
               (a)    EFFECTIVENESS OF REGISTRATION STATEMENT...............16
               (b)    OPINION OF COUNSEL FOR COMPANY........................16
               (c)    OPINION OF COUNSEL FOR U.S. UNDERWRITERS..............16
               (d)    OFFICERS' CERTIFICATE.................................17
               (e)    ACCOUNTANTS' COMFORT LETTERS..........................17
               (f)    BRING-DOWN COMFORT LETTER.............................17
               (g)    APPROVAL OF LISTING...................................18
               (h)    LOCK-UP AGREEMENTS....................................18
               (i)    PURCHASE OF INITIAL INTERNATIONAL SECURITIES..........18
               (j)    CONDITIONS TO PURCHASE OF U.S. OPTION SECURITIES......18
               (k)    ADDITIONAL DOCUMENTS..................................19
               (l)    TERMINATION OF TERMS AGREEMENTS.......................19

SECTION  6.    INDEMNIFICATION..............................................19
               (a)    INDEMNIFICATION OF UNDERWRITERS.......................19
               (b)    INDEMNIFICATION OF COMPANY, DIRECTORS AND OFFICERS....20
               (c)    ACTIONS AGAINST PARTIES; NOTIFICATION.................21
               (d)    SETTLEMENT WITHOUT CONSENT IF FAILURE TO REIMBURSE....21

SECTION  7.    CONTRIBUTION.................................................22

SECTION  8.    REPRESENTATIONS, WARRANTIES AND AGREEMENTS TO SURVIVE
               DELIVERY.....................................................23

SECTION  9.    TERMINATION..................................................23
               (a)    PURCHASE AGREEMENT....................................23
               (b)    TERMS AGREEMENT.......................................23
               (c)    LIABILITIES...........................................24

SECTION  10.   DEFAULT BY ONE OR MORE OF THE U.S. UNDERWRITERS..............24

SECTION  11.   NOTICES......................................................25

SECTION  12.   PARTIES......................................................25

SECTION  13.   GOVERNING LAW AND TIME.......................................25

SECTION  14.   EFFECT OF HEADINGS...........................................25


                              TEJAS GAS CORPORATION

                            (a Delaware corporation)

                                2,260,000 Shares
                                       of
                                  Common Stock

                           (Par value $0.25 per share)


                             U.S. PURCHASE AGREEMENT

                                                                 July ____, 1996
MERRILL LYNCH & CO.
MERRILL LYNCH, PIERCE, FENNER & SMITH
      INCORPORATED
OPPENHEIMER & CO., INC.
PAINEWEBBER INCORPORATED
PRUDENTIAL SECURITIES
      as U.S. Representatives of the several U.S. Underwriters
c/o Merrill Lynch & Co.
Merrill Lynch, Pierce, Fenner & Smith Incorporated
North Tower
World Financial Center
New York, New York 10281-1209

Ladies and Gentlemen:

      Tejas Gas Corporation, a Delaware corporation (the "Company"), proposes to
issue and sell up to 2,260,000 shares of common stock, par value $0.25 per share
(the "Common Stock"), of the Company.

      As used herein, "Initial U.S. Securities" shall mean the 2,260,000 shares
of Common Stock to be initially sold to the U.S. Underwriters; "U.S. Option
Securities" shall mean 339,000 additional shares of Common Stock to be sold to
the U.S. Underwriters to cover over-allotments; and "U.S. Securities" shall mean
the Initial U.S. Securities and the U.S. Option Securities.

                                       -1-

      The Company shall offer the U.S. Securities through Merrill Lynch & Co.,
Merrill Lynch, Pierce, Fenner & Smith Incorporated ("Merrill Lynch"),
Oppenheimer & Co., Inc. ("Oppenheimer"), PaineWebber Incorporated
("PaineWebber"), and Prudential Securities ("Prudential"), and will enter

                                       -2-

into an agreement (the "U.S. Terms Agreement") providing for the sale of the
U.S. Securities to, and the purchase and offering thereof by, Merrill Lynch,
Oppenheimer, PaineWebber, and Prudential and each of the other Underwriters
named in the U.S. Terms Agreement (collectively, the "U.S. Underwriters," which
term shall also include any underwriter substituted as hereinafter provided in
Section 10 hereof), for whom Merrill Lynch, Oppenheimer, PaineWebber and
Prudential are acting as representatives (in such capacity, the "U.S.
Representatives"), with respect to the issue and sale by the Company and the
purchase by the U.S. Underwriters, acting severally and not jointly, of the
respective numbers of shares of U.S. Initial Securities set forth in said
Schedule A to the U.S. Terms Agreement, and with respect to the grant by the
Company to the U.S. Underwriters, acting severally and not jointly, of the
option described in Section 2(b) hereof to purchase all or any part of the U.S.
Option Securities to cover over-allotments, if any.

      It is understood that the Company is concurrently entering into an
agreement dated the date hereof (the "International Purchase Agreement"),
subject to the completion of a related terms agreement thereto (the
"International Terms Agreement") (collectively, the U.S. Terms Agreement and the
International Terms Agreement are referred to herein as the "Terms Agreements"),
providing for the offering by the Company of an aggregate of 565,000 shares of
Common Stock (the "Initial International Securities") through arrangements with
certain underwriters outside of the United States and Canada (the "International
Managers") for which Merrill Lynch International, Cazenove & Co. and NatWest
Securities Limited are acting as lead managers (the "Lead Managers") and the
grant by the Company to the International Managers, acting severally and not
jointly, of an option to purchase all or part of the International Managers' pro
rata portion of up to 84,750 additional shares of Common Stock solely to cover
overallotments, if any (the "International Option Securities" and, together with
the U.S. Option Securities, the "Option Securities"). The Initial International
Securities and the International Option Securities are hereinafter called the
"International Securities".

      The U.S. Underwriters and the International Managers are hereinafter
collectively called the "Underwriters", the Initial U.S. Securities and the
Initial International Securities are hereinafter collectively called the
"Initial Securities", and the U.S. Securities, and the International Securities
are hereinafter collectively called the "Securities".

      The Underwriters will concurrently enter into an Intersyndicate Agreement
of even date herewith (the "Intersyndicate Agreement") providing for the
coordination of certain transactions among the Underwriters under the direction
of Merrill Lynch (in such capacity, the "Global Coordinator").

      The Company understands that the U.S. Underwriters propose to make a
public offering of the U.S. Securities as soon as the Representatives deem
advisable after this Agreement has been executed and delivered.

      The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement on Form S-3 (No. 333-06207) and
pre-effective Amendment No. 1 thereto for the registration of the Securities
under the Securities Act of 1933, as amended (the "1933 Act"),

                                       -3-

and the offering thereof from time to time in accordance with Rule 415 of the
rules and regulations of the Commission under the 1933 Act (the "1933 Act
Regulations"), and the Company has filed such post-effective amendments thereto
as may be required prior to the execution of the Terms Agreements. Promptly
after execution and delivery of this Agreement and the Terms Agreements, the
Company will either (i) prepare and file a prospectus in accordance with the
provisions of Rule 430A ("Rule 430A") of the rules and regulations of the
Commission under the 1933 Act (the "1933 Act Regulations") and paragraph (b) of
Rule 424 ("Rule 424(b)") of the 1933 Act Regulations or (ii) if the Company has
elected to rely upon Rule 434 ("Rule 434") of the 1933 Act Regulations, prepare
and file a term sheet (a "Term Sheet") in accordance with the provisions of Rule
434 and Rule 424(b). Two forms of prospectus are to be used in connection with
the offering and sale of the Securities: one relating to the U.S. Securities
(the "Form of U.S. Prospectus") and one relating to the International Securities
(the "Form of International Prospectus"). The Form of International Prospectus
is identical to the Form of U.S. Prospectus, except for the front cover and back
cover pages and the information under the caption "Underwriting" and the
inclusion in the Form of International Prospectus of a section under the caption
"Certain United States Tax Considerations for Non-United States Holders.") The
information included in any such prospectus or in any such Term Sheet, as the
case may be, that was omitted from such registration statement at the time it
became effective but that is deemed to be part of such registration statement at
the time it became effective (a) pursuant to paragraph (b) of Rule 430A is
referred to as "Rule 430A Information" or (b) pursuant to paragraph (d) of Rule
434 is referred to as "Rule 434 Information." Each Form of International
Prospectus and Form of U.S. Prospectus used before such registration statement
became effective, and any prospectus that omitted, as applicable, the Rule 430A
Information or the Rule 434 Information, that was used after such effectiveness
and prior to the execution and delivery of this Agreement, is herein called a
"preliminary prospectus." Such registration statement, including the exhibits
thereto, schedules thereto, if any, and the documents incorporated by reference
therein pursuant to Item 12 of Form S-3 under the 1933 Act, at the time it
became effective and including the Rule 430A Information and the Rule 434
Information, as applicable, is herein called the "Registration Statement." Any
registration statement filed pursuant to Rule 462(b) of the 1933 Act Regulations
is herein referred to as the "Rule 462(b) Registration Statement," and after
such filing the term "Registration Statement" shall include the Rule 462(b)
Registration Statement. The final Form of International Prospectus and the final
Form of U.S. Prospectus, including the documents incorporated by reference
therein pursuant to Item 12 of Form S-3 under the 1933 Act, in the forms first
furnished to the Underwriters for use in connection with the offering of the
Securities are herein called the "International Prospectus" and the "U.S.
Prospectus," respectively, and collectively, the "Prospectuses." If Rule 434 is
relied on, the terms "International Prospectus" and "U.S. Prospectus" shall
refer to the preliminary International Prospectus dated July 5, 1996 and
preliminary U.S. Prospectus dated July 5, 1996, respectively, each together with
the applicable Term Sheet and all references in this Agreement and the Terms
Agreements to the date of such Prospectuses shall mean the date of the
applicable Term Sheet. For purposes of this Agreement and the Terms Agreements,
all references to the Registration Statement, any preliminary prospectus, the
International Prospectus, the U.S. Prospectus or any Term Sheet or any amendment
or supplement to any of the foregoing shall be deemed to include the copy filed
with the Commission pursuant to its Electronic Data Gathering, Analysis and
Retrieval system ("EDGAR").

                                       -4-

      All references in this Agreement to financial statements and schedules and
other information which is "contained," "included" or "stated" in the
Registration Statement, any preliminary prospectus (including the Form of U.S.
Prospectus and Form of International Prospectus) or the Prospectuses (or other
references of like import) shall be deemed to mean and include all such
financial statements and schedules and other information which is incorporated
by reference in the Registration Statement, any preliminary prospectus
(including the Form of U.S. Prospectus and Form of International Prospectus) or
the Prospectuses, as the case may be; and all references in this Agreement to
amendments or supplements to the Registration Statement, any preliminary
prospectus or the Prospectuses shall be deemed to mean and include the filing of
any document under the Securities Exchange Act of 1934 (the "1934 Act") which is
incorporated by reference in the Registration Statement, such preliminary
prospectus or the Prospectuses, as the case may be.

      SECTION 1.  REPRESENTATIONS AND WARRANTIES.

      (a) REPRESENTATIONS AND WARRANTIES BY THE COMPANY. The Company represents
and warrants to Merrill Lynch, as of the date hereof, and to each U.S.
Underwriter named in the U.S. Terms Agreement, as of the date thereof, as of the
Closing Time referred to in Section 2(c) hereof, and as of each Date of Delivery
(if any) referred to in Section 2(b) hereof, and agrees with each U.S.
Underwriter, as follows:

            (1) COMPLIANCE WITH REGISTRATION REQUIREMENTS. The Company meets the
      requirements for use of Form S-3 under the 1933 Act. The Registration
      Statement has become effective under the 1933 Act and no stop order
      suspending the effectiveness of the Registration Statement has been issued
      under the 1933 Act and no proceedings for that purpose have been
      instituted or are pending or, to the knowledge of the Company, are
      contemplated by the Commission, and any request on the part of the
      Commission for additional information has been complied with.

            At the respective times the Registration Statement and any
      post-effective amendments thereto (including, the filing of the Company's
      most recent Annual Report on Form 10-K with the Commission (the "Annual
      Report on Form 10-K")) became effective and at the Closing Time (and, if
      any International Option Securities are purchased, at the Date of
      Delivery), the Registration Statement and any amendments and supplements
      thereto complied and will comply in all material respects with the
      requirements of the 1933 Act and the 1933 Act Regulations and did not and
      will not contain an untrue statement of a material fact or omit to state a
      material fact required to be stated therein or necessary to make the
      statements therein not misleading. Neither of the Prospectuses nor any
      amendments or supplements thereto, at the time the Prospectuses or any
      amendments or supplements thereto were issued and at the Closing Time
      (and, if any U.S. Option Securities are purchased, at the Date of
      Delivery), included or will include an untrue statement of a material fact
      or omitted or will omit to state a material fact necessary in order to
      make the statements therein, in the light of the circumstances under which
      they were made, not misleading. If the Company elects to rely upon Rule
      434 of the 1933 Act Regulations, the Company will comply with the

                                       -5-

      requirements of Rule 434. Notwithstanding the foregoing, the
      representations and warranties in this subsection shall not apply to
      statements in or omissions from the Registration Statement or the U.S.
      Prospectus made in reliance upon and in conformity with information
      furnished in writing by any U.S. Underwriter through the U.S.
      Representatives expressly for use in the Registration Statement or the
      Prospectuses.

            Each preliminary prospectus and prospectus filed as part of the
      Registration Statement as originally filed or as part of any amendment
      thereto, or filed pursuant to Rule 424 under the 1933 Act, complied when
      so filed in all material respects with the 1933 Act Regulations and, if
      applicable, each preliminary prospectus and the U.S. Prospectus delivered
      to the U.S. Underwriters for use in connection with the offering of the
      U.S. Securities will, at the time of such delivery, be identical to the
      electronically transmitted copies thereof filed with the Commission
      pursuant to EDGAR, except to the extent permitted by Regulation S-T.

            (2) INCORPORATED DOCUMENTS. The documents incorporated or deemed to
      be incorporated by reference in the Registration Statement and the
      Prospectuses, at the time they were or hereafter are filed with the
      Commission, complied and will comply in all material respects with the
      requirements of the 1934 Act and the rules and regulations of the
      Commission thereunder (the "1934 Act Regulations") and, when read together
      with the other information in the Prospectuses, at the date of the
      Prospectuses, and at the Closing Time (and, if any International Option
      Securities are purchased, at the Date of Delivery) did not and will not
      include an untrue statement of a material fact or omit to state a material
      fact required to be stated therein or necessary to make the statements
      therein, in the light of the circumstances under which they were made, not
      misleading.

            (3) INDEPENDENT ACCOUNTANTS. The accountants who certified the
      financial statements and supporting schedules included in the Registration
      Statement and the Prospectuses are independent public accountants as
      required by the 1933 Act and the 1933 Act Regulations.

            (4) FINANCIAL STATEMENTS. The financial statements of the Company
      included in the Registration Statement and the Prospectuses, together with
      the related schedules and notes, as well as those financial statements,
      schedules and notes of any other entity included therein, present fairly
      the financial position of the Company and its consolidated subsidiaries,
      or such other entity, as the case may be, at the dates indicated and the
      statement of operations, stockholders' equity and cash flows of the
      Company and its consolidated subsidiaries, or such other entity, as the
      case may be, for the periods specified. Except (A) as otherwise stated in
      the Registration Statement or (B) in the case of the unaudited interim
      financial statements and the pro forma financial information incorporated
      by reference therein, as otherwise stated therein, such financial
      statements have been prepared in conformity with generally accepted
      accounting principles ("GAAP") applied on a consistent basis throughout
      the periods involved. The supporting schedules, if any, included in the

                                       -6-

      Registration Statement and the Prospectuses present fairly in accordance
      with GAAP the information required to be stated therein. The selected
      financial data and the summary financial information included in the
      Prospectuses present fairly the information shown therein and have been
      compiled on a basis consistent with that of the audited financial
      statements and the unaudited financial statements, as the case may be,
      included in the Registration Statement and the Prospectuses. In addition,
      any pro forma financial statements of the Company and its subsidiaries and
      the related notes thereto included in the Registration Statement and the
      Prospectuses present fairly the information shown therein, have been
      prepared in accordance with the Commission's rules and guidelines with
      respect to pro forma financial statements and have been properly compiled
      on the bases described therein, and the assumptions used in the
      preparation thereof are reasonable and the adjustments used therein are
      appropriate to give effect to the transactions and circumstances referred
      to therein.

            (5) NO MATERIAL ADVERSE CHANGE IN BUSINESS. Since the respective
      dates as of which information is given in the Registration Statement and
      the Prospectuses, except as otherwise stated therein, (A) there has been
      no material adverse change in the condition, financial or otherwise, or in
      the earnings, business affairs or business prospects of the Company and
      its subsidiaries considered as one enterprise (a "Material Adverse
      Effect"), whether or not arising in the ordinary course of business, (B)
      there have been no transactions entered into by the Company or any of its
      subsidiaries, other than those arising in the ordinary course of business,
      which are material with respect to the Company and its subsidiaries
      considered as one enterprise and (C) except for the initial and regular
      quarterly dividends on the Company's outstanding shares of preferred
      stock, in amounts per share that are consistent with past practice or the
      applicable charter document or supplement thereto, there has been no
      dividend or distribution of any kind declared, paid or made by the Company
      on any class of its capital stock.

            (6) GOOD STANDING OF THE COMPANY. The Company has been duly
      organized and is validly existing as a corporation in good standing under
      the laws of the state of Delaware and has corporate power and authority to
      own, lease and operate its properties and to conduct its business as
      described in the Prospectus and to enter into and perform its obligations
      under, or as contemplated under, this Agreement and the applicable Terms
      Agreements. The Company is duly qualified as a foreign corporation to
      transact business and is in good standing in each other jurisdiction in
      which such qualification is required, whether by reason of the ownership
      or leasing of property or the conduct of business, except where the
      failure to so qualify or be in good standing would not result in a
      Material Adverse Effect.

            (7) GOOD STANDING OF SUBSIDIARIES. Each "significant subsidiary" of
      the Company (as such term is defined in Rule 1-02 of Regulation S-X
      promulgated under the 1933 Act) (each, a "Subsidiary" and collectively,
      the "Subsidiaries") has been duly organized and is validly existing as a
      corporation (or partnership or joint venture in the case of a
      non-corporate subsidiary) in good standing under the laws of the
      jurisdiction of its organization, has corporate power (or partnership or
      joint venture power in the case of a non-corporate

                                       -7-

      subsidiary) and authority to own, lease and operate its properties and to
      conduct its business as described in the Prospectuses and is duly
      qualified as a foreign corporation (or partnership or joint venture in the
      case of a non-corporate subsidiary) to transact business and is in good
      standing in each jurisdiction in which such qualification is required,
      whether by reason of the ownership or leasing of property or the conduct
      of business, except where the failure to so qualify or be in good standing
      would not result in a Material Adverse Effect. Except as otherwise stated
      in the Registration Statement and the Prospectus, all of the issued and
      outstanding capital stock of each Subsidiary has been duly authorized and
      is validly issued, fully paid and non-assessable and is owned by the
      Company, directly or through subsidiaries, free and clear of any security
      interest, mortgage, pledge, lien, encumbrance, claim or equity other than
      the pledges to banks under the loan agreements of the Company. None of the
      outstanding shares of capital stock of the Subsidiaries was issued in
      violation of preemptive or other similar rights arising by operation of
      law, under the charter or by-laws of any Subsidiary or under any agreement
      to which the Company or any Subsidiary is a party, or otherwise.

            (8) CAPITALIZATION. The authorized, issued and outstanding shares of
      capital stock of the Company is as set forth in the Prospectuses in the
      column entitled "Actual" under the caption "Capitalization" (except for
      subsequent issuances thereof, if any, contemplated under this Agreement
      and the U.S. Purchase Agreement, pursuant to employee benefit plans
      referred to in the Prospectuses or pursuant to the exercise of convertible
      securities or options referred to in the Prospectuses). Such shares of
      capital stock have been duly authorized and validly issued by the Company
      and are fully paid and non-assessable, and none of such shares of capital
      stock were issued in violation of preemptive or other similar rights
      arising by operation of law, under the charter and by-laws of the Company
      or under any agreement to which the Company or any of its subsidiaries is
      a party, or otherwise.

            (9) AUTHORIZATION OF AGREEMENTS. This Agreement and the
      International Purchase Agreement have been, and the related Terms
      Agreements thereto as of the date thereof will have been, duly authorized,
      executed and delivered by the Company.

            (10) AUTHORIZATION OF COMMON STOCK. The Securities being sold to the
      Underwriters pursuant to the respective Terms Agreements have been, or as
      of the date of the Terms Agreements will have been, duly authorized by the
      Company for issuance and sale to the U.S. Underwriters pursuant to this
      Agreement and the U.S. Terms Agreement and to the International Managers
      pursuant to the International Purchase Agreement and the International
      Terms Agreement. Such Securities, when issued and delivered by the Company
      pursuant to this Agreement, the International Purchase Agreement and the
      applicable Terms Agreements, against payment of the consideration
      therefore specified in such Terms Agreements, will be validly issued,
      fully paid and non-assessable and will not be subject to preemptive or
      other similar rights arising by operation of law, under the charter and
      by-laws of the Company or under any agreement to which the Company or any
      of its subsidiaries is a party, or otherwise. No holder of the Securities
      will be subject to personal

                                       -8-

      liability by reason of being such a holder. There are no persons with
      registration or other similar rights to have securities of the Company
      registered pursuant to the Registration Statement or otherwise registered
      by the Company under the 1933 Act as a result thereof.

            (11) ABSENCE OF DEFAULTS AND CONFLICTS. Neither the Company nor any
      subsidiary is in violation of its charter or by-laws or in default in the
      performance or observance of any material obligation, agreement, covenant
      or condition contained in any contract, indenture, mortgage, deed of
      trust, loan or credit agreement, note, lease or other agreement or
      instrument to which the Company or any subsidiary is a party or by which
      it or any of them may be bound, or to which any of the property or assets
      of the Company or any subsidiary is subject (collectively, "Agreements and
      Instruments"), except for such defaults as would not result in a Material
      Adverse Effect. The execution, delivery and performance of this Agreement,
      the International Purchase Agreement and the applicable Terms Agreements
      and any other agreement or instrument entered into or issued or to be
      entered into or issued by the Company in connection with the transactions
      contemplated hereby or thereby or in the Registration Statement and the
      Prospectuses and the consummation of the transactions contemplated herein
      and in the Registration Statement and the Prospectuses (including the
      issuance and sale of the Securities and the use of the proceeds from the
      sale of the Securities as described under the caption "Use of Proceeds")
      and compliance by the Company with its obligations under this Agreement
      and the International Purchase Agreement have been duly authorized by all
      necessary corporate action and do not and will not, whether with or
      without the giving of notice or passage of time or both, conflict with or
      constitute a breach of, or default or Repayment Event (as defined below)
      under, or result in the creation or imposition of any lien, charge or
      encumbrance upon any assets, properties or operations of the Company or
      any subsidiary pursuant to, any Agreements and Instruments, except for
      such conflicts, breaches, defaults, events or liens, charges or
      encumbrances that would not result in a Material Adverse Effect, nor will
      such action result in any violation of the provisions of the charter or
      by-laws of the Company or any Subsidiary or any applicable law, statute,
      rule, regulation, judgment, order, writ or decree of any government,
      government instrumentality or court, domestic or foreign, having
      jurisdiction over the Company or any subsidiary or any of their assets,
      properties or operations. As used herein, a "Repayment Event" means any
      event or condition which gives the holder of any note, debenture or other
      evidence of indebtedness (or any person acting on such holder's behalf)
      the right to require the repurchase, redemption or repayment of all or a
      portion of such indebtedness by the Company or any Subsidiary other than
      the requirement to use proceeds of the offering contemplated hereby or in
      the International Purchase Agreement to pay down the loan agreements.

            (12) VIOLATION OF LAW. Neither the Company nor any subsidiary is in
      violation of any law, ordinance, governmental rule or regulation or court
      decree to which it may be subject, which violation might result in a
      Material Adverse Effect.

                                       -9-

            (13) ABSENCE OF PROCEEDINGS. Except as disclosed in the Registration
      Statement and the Prospectuses, there is no action, suit, proceeding,
      inquiry or investigation before or by any court or governmental agency or
      body, domestic or foreign, now pending, or, to the knowledge of the
      Company, threatened, against or affecting the Company or any subsidiary
      which is required to be disclosed in the Registration Statement and the
      Prospectuses (other than as stated therein), or which might reasonably be
      expected to result in a Material Adverse Effect, or which might reasonably
      be expected to materially and adversely affect the assets, properties or
      operations thereof or the consummation of this Agreement, the U.S.
      Purchase Agreement and the applicable Terms Agreements or the transactions
      contemplated herein or therein. The aggregate of all pending legal or
      governmental proceedings to which the Company or any subsidiary is a party
      or of which any of their respective assets, properties or operations is
      the subject which are not described in the Registration Statement and the
      Prospectuses, including ordinary routine litigation incidental to the
      business, could not reasonably be expected to result in a Material Adverse
      Effect.

            (14) ACCURACY OF EXHIBITS. There are no contracts or documents which
      are required to be described in the Registration Statement, the
      Prospectuses or the documents incorporated by reference therein or to be
      filed as exhibits thereto which have not been so described and/or filed as
      required.

            (15) DESCRIPTIONS OF THE SECURITIES. The Securities being sold
      pursuant to the Terms Agreements, as of the date of the Prospectuses, will
      conform in all material respects to the statements relating thereto
      contained in the Prospectus.

            (16) ABSENCE OF FURTHER REQUIREMENTS. No filing with, or
      authorization, approval, consent, license, order registration,
      qualification or decree of, any court or governmental authority or agency
      is necessary or required for the performance by the Company of its
      obligations under this Agreement, the International Purchase Agreement or
      the Terms Agreements or in connection with the transactions contemplated
      under this Agreement, the International Purchase Agreement or the Terms
      Agreements, except such as have been already obtained or as may be
      required under state securities laws.

            (17) POSSESSION OF LICENSES AND PERMITS. The Company and each
      subsidiary possess such permits, licenses, approvals, consents and other
      authorizations (collectively, "Governmental Licenses") issued by the
      appropriate federal, state, local or foreign regulatory agencies or bodies
      necessary to conduct the business now operated by them, except where the
      failure so to comply would not, singly or in the aggregate, result in a
      Material Adverse Effect. The Company and each subsidiary are in compliance
      with the terms and conditions of all such Governmental Licenses, except
      where the failure so to comply would not, singly or in the aggregate,
      result in a Material Adverse Effect. All of the Governmental Licenses are
      valid and in full force and effect, except when the invalidity of such
      Governmental Licenses or the failure of such Governmental Licenses to be
      in full force and effect would not result in a Material Adverse Effect.
      Neither the Company nor any subsidiary has

                                      -10-

      received any notice of proceedings relating to the revocation or
      modification of any such Governmental Licenses which, singly or in the
      aggregate, if the subject of an unfavorable decision, ruling or finding,
      would result in a Material Adverse Effect.

            (18) TITLE TO PROPERTY. The Company and the subsidiaries have good
      and indefeasible title to all real property owned by the Company and the
      subsidiaries and good title to all other properties owned by them, in each
      case, free and clear of all mortgages, pledges, liens, security interests,
      claims, restrictions or encumbrances of any kind, except (A) as otherwise
      stated in the Registration Statement and the Prospectuses or (B) those
      which do not, singly or in the aggregate, materially affect the value of
      such property and do not interfere with the use made and proposed to be
      made of such property by the Company or any subsidiary. All of the leases
      and subleases material to the business of the Company and the subsidiaries
      considered, as one enterprise, and under which the Company or any
      subsidiary holds properties described in the Prospectuses, are in full
      force and effect, and neither the Company nor any subsidiary has received
      any notice of any material claim of any sort that has been asserted by
      anyone adverse to the rights of the Company or any subsidiary under any of
      the leases or subleases mentioned above, or affecting or questioning the
      rights of the Company or such subsidiary to the continued possession of
      the leased or subleased premises under any such lease or sublease.

            (19) INVESTMENT COMPANY ACT. The Company is not, and upon the
      issuance and sale of the Securities as herein contemplated and the
      application of the net proceeds therefrom as described in the Prospectuses
      will not be, an "investment company" or an entity "controlled by" an
      "investment company" as such terms are defined in the Investment Company
      Act of 1940, as amended (the "1940 Act").

            (20) DERIVATIVES BUSINESS. The internal controls and policies used
      in connection with the natural gas derivatives business of the Company and
      each subsidiary are reasonable and to the best knowledge of the Company,
      adequate in light of the business conducted.

            (21) COMPLIANCE WITH CUBA ACT. The Company has complied with, and is
      and will be in compliance with, the provisions of that certain Florida act
      relating to disclosure of doing business with Cuba, codified as Section
      517.075 of the Florida statutes, and the rules and regulations thereunder
      or is exempt therefrom.

      (b) OFFICERS' CERTIFICATES. Any certificate signed by any officer of the
Company or any Subsidiary and delivered to the Global Coordinator, the Lead
Managers or to counsel for the U.S. Underwriters in connection with the offering
of the U.S. Securities shall be deemed a representation and warranty by the
Company to each U.S. Underwriter as to the matters covered thereby on the date
of such certificate.

                                      -11-

      SECTION 2.  SALE AND DELIVERY TO UNDERWRITERS; CLOSING.

      (a) INITIAL SECURITIES. The several commitments of the U.S. Underwriters
to purchase the Initial U.S. Securities pursuant to the U.S. Terms Agreement
shall be deemed to have been made on the basis of the representations and
warranties herein contained and shall be subject to the terms and conditions
herein set forth.

      (b) OPTION SECURITIES. In addition, on the basis of the representations
and warranties herein contained and subject to the terms and conditions herein
set forth, the Company hereby grants an option to the U.S. Underwriters,
severally and not jointly, to purchase up to the number of U.S. Option
Securities to cover over-allotments at a price per U.S. Option Security equal to
the price per Initial U.S. Security, less an amount equal to any dividends or
distributions declared by the Company and paid or payable on the Initial U.S.
Securities but not payable on the U.S. Option Securities. Such option will
expire 30 days after the date of the Terms Agreements, and may be exercised in
whole or in part from time to time only for the purpose of covering
over-allotments which may be made in connection with the offering and
distribution of the Initial U.S. Securities upon notice by the Global
Coordinator to the Company setting forth the number of U.S. Option Securities as
to which the several U.S. Underwriters are then exercising the option and the
time, date and place of payment and delivery for such U.S. Option Securities.
Any such time and date of payment and delivery (each, a "Date of Delivery")
shall be determined by the Global Coordinator, but shall not be later than seven
full business days after the exercise of said option, nor in any event prior to
the Closing Time (as hereinafter defined), unless otherwise agreed upon by the
Global Coordinator and the Company. If the option is exercised as to all or any
portion of the U.S. Option Securities, each of the U.S. Underwriters, severally
and not jointly, will purchase that proportion of the total number of U.S.
Option Securities then being purchased which the number of Initial U.S.
Securities each such U.S. Underwriter has severally agreed to purchase as set
forth in the U.S. Terms Agreement bears to the total number of Initial U.S.
Securities, subject to such adjustments as the Global Coordinator in its
discretion shall make to eliminate any sales or purchases of a fractional number
of U.S. Option Securities.

      (c) PAYMENT. Payment of the purchase price for, and delivery of, the
Initial U.S. Securities shall be made at the office of Andrews & Kurth L.L.P.,
4200 Texas Commerce Tower, Suite 4300, Houston, Texas 77002, or at such other
place as shall be agreed upon by the Global Coordinator and the Company, at
10:00 A.M. (Eastern time) on the third (fourth, if the pricing occurs after 4:30
P.M. (Eastern time) on any given day) business day after the date hereof (unless
postponed in accordance with the provisions of Section 10 hereof), or such other
time not later than ten business days after such date as shall be agreed upon by
the Global Coordinator and the Company (such time and date of payment and
delivery being herein called "Closing Time").

      In addition, in the event that the U.S. Underwriters have exercised their
option to purchase any or all of the U.S. Option Securities, payment of the
purchase price for, and delivery of such U.S. Option Securities, shall be made
at the above-mentioned offices of Andrews & Kurth L.L.P., or at

                                      -12-

such other place as shall be agreed upon by the Global Coordinator and the
Company, on the relevant Date of Delivery as specified in the notice from the
Global Coordinator to the Company.

      Payment shall be made to the Company by wire transfer in same day funds to
a bank account designated by the Company, against delivery to the U.S.
Representatives for the respective accounts of the U.S. Underwriters of
certificates for the U.S. Securities to be purchased by them. It is understood
that each U.S. Underwriter has authorized Merrill Lynch, for its account, to
accept delivery of, receipt for, and make payment of the purchase price for, the
Initial U.S. Securities and the U.S. Option Securities, if any, which it has
severally agreed to purchase. Merrill Lynch, individually and not as
representative of the U.S. Underwriters may (but shall not be obligated to) make
payment of the purchase price for the Initial U.S. Securities and the U.S.
Option Securities, if any, to be purchased by any U.S. Underwriter whose funds
have not been received by the Closing Time or the relevant Date of Delivery, as
the case may be, but such payment shall not relieve such U.S. Underwriter from
its obligations hereunder.

      (d) DENOMINATIONS; REGISTRATION. The Initial U.S. Securities and
certificates therefor and the U.S. Option Securities, if any, and certificates
therefor shall be in such denominations and registered in such names as the U.S.
Representatives may request in writing at least one full business day prior to
the Closing Time or the relevant Date of Delivery, as the case may be. The U.S.
Securities and certificates therefor and the U.S. Option Securities, if any, and
certificates therefor will be made available for examination and packaging by
the U.S. Representatives in The City of New York not later than 10:00 A.M.
(Eastern time) on the business day prior to the Closing Time or the relevant
Date of Delivery, as the case may be.

      SECTION 3. COVENANTS OF THE COMPANY. The Company covenants with Merrill
Lynch and with each U.S. Underwriter participating in the offering of U.S.
Securities, as follows:

            (a) COMPLIANCE WITH SECURITIES REGULATIONS AND COMMISSION REQUESTS.
      The Company, subject to Section 3(b), will comply with the requirements of
      Rule 430A or Rule 434, as applicable, of the 1933 Act Regulations and will
      notify the Global Coordinator immediately, and confirm the notice in
      writing, of (i) the effectiveness of any post-effective amendment to the
      Registration Statement or the filing of any supplement or amendment to the
      Prospectuses, (ii) the receipt of any comments from the Commission, (iii)
      any request by the Commission for any amendment to the Registration
      Statement or any amendment or supplement to the Prospectuses or for
      additional information, and (iv) the issuance by the Commission of any
      stop order suspending the effectiveness of the Registration Statement or
      of any order preventing or suspending the use of any preliminary
      prospectus, or of the suspension of the qualification of the Securities
      for offering or sale in any jurisdiction, or of the initiation or
      threatening of any proceedings for any of such purposes. The Company will
      promptly effect the filings necessary pursuant to Rule 424 and will take
      such steps as it deems necessary to ascertain promptly whether the
      Prospectus transmitted for filing under Rule 424 was received for filing
      by the Commission and, in the event that it was not, it will promptly file
      the Prospectus. The Company will make every reasonable effort to prevent
      the

                                      -13-

      issuance of any stop order and, if any stop order is issued, to obtain the
      lifting thereof at the earliest possible moment.

            (b) FILING OF AMENDMENTS. The Company will give the Global
      Coordinator notice of its intention to file or prepare any amendment to
      the Registration Statement or any amendment, supplement or revision to
      either the Prospectuses included in the Registration Statement at the time
      it became effective or to the Prospectuses filed after the effectiveness
      of the Registration Statement, whether pursuant to the 1933 Act, the 1934
      Act or otherwise, will furnish the Global Coordinator with copies of any
      such documents a reasonable amount of time prior to such proposed filing
      or use, as the case may be, and will not file or use any such document to
      which the Global Coordinator or counsel for the U.S. Underwriters shall
      object.

            (c) DELIVERY OF REGISTRATION STATEMENTS. The Company has furnished
      or will deliver to the U.S. Representatives and counsel for the U.S.
      Underwriters, without charge, (i) signed copies of the Registration
      Statement as originally filed and of each amendment thereto (including
      exhibits filed therewith or incorporated by reference therein and
      documents incorporated or deemed to be incorporated by reference therein),
      (ii) copies of the Registration Statement and each amendment thereto in
      the form electronically filed with the Commission pursuant to EDGAR and
      (iii) signed copies of all consents and certificates of experts, and will
      also deliver to the U.S. Representatives, without charge, a conformed copy
      of the Registration Statement as originally filed and of each amendment
      thereto (without exhibits) for each of the U.S. Underwriters. The
      Registration Statement and any amendments or supplements thereto furnished
      to the U.S. Underwriters will be identical to the electronically
      transmitted copies thereof filed with the Commission pursuant to EDGAR,
      except to the extent permitted by Regulation S-T.

            (d) DELIVERY OF PROSPECTUS. The Company has delivered to each U.S.
      Underwriter, without charge, as many copies of each preliminary prospectus
      as such U.S. Underwriter reasonably requested, and the Company hereby
      consents to the use of such copies for purposes permitted by the 1933 Act.
      The Company will furnish to each U.S. Underwriter, without charge, during
      the period when the U.S. Prospectus is required to be delivered under the
      1933 Act or the 1934 Act, such number of copies of the U.S. Prospectus (as
      amended or supplemented) as such U.S. Underwriter may reasonably request.
      The U.S. Prospectus and any amendments or supplements thereto furnished to
      the U.S. Underwriters will be identical to the electronically transmitted
      copies thereof filed with the Commission pursuant to EDGAR, except to the
      extent permitted by Regulation S-T.

            (e) CONTINUED COMPLIANCE WITH SECURITIES LAWS. The Company will
      comply with the 1933 Act and the 1933 Act Regulations and the 1934 Act and
      the 1934 Act Regulations so as to permit the completion of the
      distribution of the Securities as contemplated in this Agreement, the
      International Purchase Agreement, and the Terms Agreements, and in the
      Registration Statement and the Prospectuses. If at any time when a
      Prospectus is required

                                      -14-

      by the 1933 Act or the 1934 Act to be delivered in connection with sales
      of the Securities, any event shall occur or condition shall exist as a
      result of which it is necessary, in the opinion of counsel for the U.S.
      Underwriters or for the Company, to amend the Registration Statement in
      order that the Registration Statement will not contain an untrue statement
      of a material fact or omit to state a material fact required to be stated
      therein or necessary to make the statements therein not misleading or to
      amend or supplement any Prospectuses in order that the Prospectus will not
      include any untrue statement of a material fact or omit to state a
      material fact necessary in order to make the statements therein not
      misleading in the light of the circumstances existing at the time it is
      delivered to a purchaser, or if it shall be necessary, in the opinion of
      such counsel, at any such time to amend the Registration Statement or
      amend or supplement any Prospectus in order to comply with the
      requirements of the 1933 Act or the 1933 Act Regulations, the Company will
      promptly prepare and file with the Commission, subject to Section 3(b),
      such amendment or supplement as may be necessary to correct such statement
      or omission or to make the Registration Statement or the Prospectuses
      comply with such requirements, and the Company will furnish to the U.S.
      Underwriters, without charge, such number of copies of such amendment or
      supplement as the U.S. Underwriters may reasonably request.

            (f) BLUE SKY QUALIFICATIONS. The Company will use reasonable
      commercial efforts, in cooperation with the U.S. Underwriters, to qualify
      the U.S. Securities for offering and sale under the applicable securities
      laws of such states and other jurisdictions (domestic or foreign) as the
      Global Coordinator may designate and to maintain such qualifications in
      effect for so long as may be required by the laws of such jurisdiction to
      continue such qualification in effect for so long as may be required in
      connection with the distribution of the U.S. Securities; provided,
      however, that the Company shall not be obligated to file any general
      consent to service of process or to qualify as a foreign corporation or as
      a dealer in securities in any jurisdiction in which it is not so qualified
      or to subject itself to taxation in respect of doing business in any
      jurisdiction in which it is not otherwise so subject. In each jurisdiction
      in which the U.S. Securities have been so qualified, the Company will file
      such statements and reports as may be required by the laws of such
      jurisdiction to continue such qualification in effect for so long as may
      be required by the laws of such jurisdiction to continue such
      qualification in effect for so long as may be required in connection with
      the distribution of the U.S. Securities.

            (g) RULE 158. The Company will timely file such reports pursuant to
      the 1934 Act as are necessary in order to make generally available to its
      security holders as soon as practicable an earnings statement for the
      purposes of, and to provide the benefits contemplated by, the last
      paragraph of Section 11(a) of the 1933 Act.

            (h) USE OF PROCEEDS. The Company will use the net proceeds received
      by it from the sale of the Securities in the manner specified in the
      Prospectuses under "Use of Proceeds".

                                      -15-

            (i) LISTING. The Company will use its reasonable commercial efforts
      to effect the listing of the Securities, subject to notice of issuance to
      be provided at the Closing Time, on the New York Stock Exchange.

            (j) RESTRICTION ON SALE OF SECURITIES. Between the date of the Terms
      Agreements and the Closing Time or such other date specified in the Terms
      Agreements, the Company will not, without the prior written consent of the
      Global Coordinator directly or indirectly, issue, sell, offer to sell,
      grant any option for the sale of, or otherwise dispose of, any share of
      Common Stock or Common Stock equivalent.

            (k) REPORTING REQUIREMENTS. The Company, during the period when the
      Prospectuses are required to be delivered under the 1933 Act or the 1934
      Act, will file all documents required to be filed with the Commission
      pursuant to the 1934 Act within the time periods required by the 1934 Act
      and the 1934 Act Regulations.

      SECTION 4. PAYMENT OF EXPENSES. (a) EXPENSES. The Company will pay all
expenses incident to the performance of its obligations under this Agreement or
the U.S. Terms Agreement, including (i) the preparation, printing and filing of
the Registration Statement (including financial statements and exhibits) as
originally filed and of each amendment thereto, (ii) the duplication and
delivery to the U.S. Underwriters of this Purchase Agreement, the Terms
Agreements, any Agreement Among Underwriters, and such other documents as may be
required in connection with the offering, purchase, sale and delivery of the
U.S. Securities, (iii) the preparation, issuance and delivery of the U.S.
Securities and certificates for the U.S. Securities to the U.S. Underwriters,
(iv) the fees and disbursements of the Company's counsel, accountants and other
advisors or agents (including transfer agents and registrars), (v) the
qualification of the U.S. Securities under state securities laws in accordance
with the provisions of Section 3(f) hereof, including filing fees and the
reasonable fees and disbursements of counsel for the U.S. Underwriters in
connection therewith and in connection with the preparation, printing and
delivery of the Blue Sky Survey and any Legal Investment Survey, and any
amendment thereto, (vi) the printing and delivery to the U.S. Underwriters of
copies of each preliminary prospectus, any Term Sheet, and the Prospectuses and
any amendments or supplements thereto, and (vii) the fees and expenses incurred
in connection with the listing of the U.S. Securities on the New York Stock
Exchange.

      (b) TERMINATION OF AGREEMENT. If the U.S. Terms Agreement is terminated by
Merrill Lynch in accordance with the provisions of Section 5(l) or Section
9(b)(i) hereof, the Company shall reimburse the U.S. Underwriters for all of
their out-of-pocket expenses, including the reasonable fees and disbursements of
counsel for the U.S. Underwriters.

      SECTION 5. CONDITIONS OF U.S. UNDERWRITERS' OBLIGATIONS. The obligations
of the U.S. Underwriters to purchase and pay for the U.S. Securities pursuant to
the U.S. Terms Agreement are subject to the accuracy of the representations and
warranties of the Company contained in Section 1 hereof or in certificates of
any officer of the Company or any Subsidiary delivered

                                      -16-

pursuant to the provisions hereof, to the performance by the Company of its
covenants and other obligations hereunder, and to the following further
conditions:

            (a) EFFECTIVENESS OF REGISTRATION STATEMENT. The Registration
      Statement, has become effective under the 1933 Act and no stop order
      suspending the effectiveness of the Registration Statement shall have been
      issued under the 1933 Act or proceedings therefor initiated or threatened
      by the Commission, and any request on the part of the Commission for
      additional information shall have been complied with to the reasonable
      satisfaction of counsel to the U.S. Underwriters. A prospectus containing
      the Rule 430A Information shall have been filed with the Commission in
      accordance with Rule 424(b) (or any required post-effective amendment
      providing such information shall have been filed and declared effective in
      accordance with the requirements of Rule 430A), or, if the Company has
      elected to rely upon Rule 434 of the 1933 Act Regulations, a Term Sheet
      including the Rule 434 Information shall have been filed with the
      Commission in accordance with Rule 424(b)(7).

            (b) OPINION OF COUNSEL FOR COMPANY. At Closing Time, the U.S.
      Representatives shall have received the favorable opinion, dated as of
      Closing Time, of Baker & Botts, L.L.P., counsel for the Company, in form
      and substance satisfactory to counsel for the U.S. Underwriters, together
      with signed or reproduced copies of such letter for each of the other U.S.
      Underwriters, to the effect set forth in EXHIBIT A hereto. In giving such
      opinion, such counsel may rely, as to all matters governed by the laws of
      jurisdictions other than the law of the State of New York, the federal law
      of the United States and the General Corporation Law of the State of
      Delaware, upon the opinions of counsel satisfactory to Merrill Lynch. Such
      counsel may also state that, insofar as such opinion involves factual
      matters, they have relied, to the extent they deem proper, upon
      certificates of officers of the Company and the Subsidiaries and
      certificates of public officials.

            (c) OPINION OF COUNSEL FOR U.S. UNDERWRITERS. At Closing Time, the
      U.S. Representatives shall have received the favorable opinion, dated as
      of Closing Time, of Andrew & Kurth L.L.P., counsel for the U.S.
      Underwriters, together with signed or reproduced copies of such letter for
      each of the other U.S. Underwriters with respect to the matters set forth
      in paragraphs (1), (6), (7), (8) (solely as to the information in the U.S.
      Prospectus under "Description of Capital Stock" or any other caption
      purporting to describe any such U.S. Securities), (14), (15) and the
      penultimate paragraph of EXHIBIT A hereto. In giving such opinion, such
      counsel may rely, as to all matters governed by the laws of jurisdictions
      other than the law of the State of New York, the federal law of the United
      States and the General Corporation Law of the State of Delaware, upon the
      opinions of counsel satisfactory to the U.S. Representatives. Such counsel
      may also state that, insofar as such opinion involves factual matters,
      they have relied, to the extent they deem proper, upon certificates of
      officers of the Company and its Subsidiaries and certificates of public
      officials.

            (d) OFFICERS' CERTIFICATE. At Closing Time, there shall not have
      been, since the date of the Terms Agreements or since the respective dates
      as of which information is given

                                      -17-

      in the Prospectuses, any material adverse change in the condition,
      financial or otherwise, or in the earnings, business affairs or business
      prospects of the Company and the Subsidiaries considered as one
      enterprise, whether or not arising in the ordinary course of business, and
      the U.S. Representatives shall have received a certificate of the Company,
      executed by the President or a Vice President of the Company and the chief
      financial officer or chief accounting officer of the Company, dated as of
      Closing Time, to the effect that (i) there has been no such material
      adverse change, (ii) the representations and warranties in Section 1
      hereof are true and correct with the same force and effect as though
      expressly made at and as of the Closing Time, (iii) the Company has
      complied with all agreements and satisfied all conditions on its part to
      be performed or satisfied at or prior to the Closing Time, (iv) there are
      no material subsidiaries other than those set forth on Schedule I hereto,
      and (v) no stop order suspending the effectiveness of the Registration
      Statement has been issued and no proceedings for that purpose have been
      initiated or, to the Company's knowledge, threatened by the Commission.

            (e) ACCOUNTANT'S COMFORT LETTERS. At the time of the execution of
      the Terms Agreements, the U.S. Representatives shall have received (i)
      from Deloitte & Touche LLP a letter dated such date, in form and substance
      satisfactory to the U.S. Representatives, together with signed or
      reproduced copies of such letter for each of the U.S. Underwriters,
      containing statements and information of the type ordinarily included in
      accountants' "comfort letters" to underwriters with respect to the
      financial statements and certain financial information of the Company and
      Subsidiaries contained, or incorporated by reference, in the Registration
      Statement and the Prospectuses and (ii) from Arthur Andersen LLP a letter
      dated such date, in form and substance satisfactory to the U.S.
      Representatives, together with signed or reproduced copies of such letter
      for each of the other U.S. Underwriters, containing statements and
      information of the type ordinarily included in accountants' "comfort
      letters" to underwriters with respect to the financial statements and
      financial information of Transok, Inc. contained, or incorporated by
      reference, in the Registration Statement and the Prospectuses.

            (f) BRING-DOWN COMFORT LETTER. At Closing Time, the U.S.
      Representatives shall have received from each of Deloitte & Touche LLP and
      Arthur Andersen LLP a letter, dated as of Closing Time, to the effect that
      they reaffirm the statements made in the letter furnished pursuant to
      subsection (e) of this Section 5, except that the specified date referred
      to shall be a date not more than three business days prior to the Closing
      Time.

            (g) APPROVAL OF LISTING. At Closing Time, the Securities shall have
      been approved for listing on the New York Stock Exchange, subject only to
      official notice of issuance.

            (h) LOCK-UP AGREEMENTS. On the date of the Terms Agreements, the
      U.S. Representatives shall have received, in form and substance
      satisfactory to them, each lock-up

                                      -18-

      agreement, if any, specified in the Terms Agreements as being required to
      be delivered by the persons listed therein.

            (i) PURCHASE OF INITIAL INTERNATIONAL SECURITIES. Contemporaneously
      with the purchase by the U.S. Underwriters of the U.S. International
      Securities under this Agreement, the International Managers shall have
      purchased the Initial International Securities under the International
      Purchase Agreement.

            (j) CONDITIONS TO PURCHASE OF U.S. OPTION SECURITIES. If the U.S.
      Underwriters exercise their option provided in Section 2(b) hereof to
      purchase all or any portion of the U.S. Option Securities, the
      representations and warranties of the Company contained herein and the
      statements in any certificates furnished by the Company hereunder shall be
      true and correct as of each Date of Delivery, and, at the relevant Date of
      Delivery, the U.S. Representatives shall have received:

                  (1) OFFICERS' CERTIFICATE. A certificate, dated such Date of
            Delivery, of the Company executed by the President or a Vice
            President of the Company and the chief financial officer or chief
            accounting officer of the Company, confirming that the certificate
            delivered at the Closing Time pursuant to Section 5(d) hereof
            remains true and correct as of such Date of Delivery.

                  (2) OPINION OF COUNSEL FOR COMPANY. The favorable opinion of
            Baker & Botts, L.L.P., counsel for the Company, in form and
            substance satisfactory to counsel for the U.S. Underwriters, dated
            such Date of Delivery, relating to the U.S. Option Securities to be
            purchased on such Date of Delivery and otherwise to the same effect
            as the opinion required by Section 5(b) hereof.

                  (3) OPINION OF COUNSEL FOR INTERNATIONAL MANAGERS. The
            favorable opinion of Andrews & Kurth L.L.P., counsel for the U.S.
            Underwriters, dated such Date of Delivery, relating to the U.S.
            Option Securities and otherwise to the same effect as the opinion
            required by Section 5(c) hereof.

                  (4) BRING-DOWN COMFORT LETTER. A letter from each of Deloitte
            & Touche LLP and Arthur Andersen LLP, in form and substance
            satisfactory to the U.S. Representatives and dated such Date of
            Delivery, substantially in the same form and substance as the letter
            furnished to the U.S. Representatives pursuant to Section 5(f)
            hereof, except that the "specified date" on the letter furnished
            pursuant to this paragraph shall be a date not more than three
            business days prior to such Date of Delivery.

            (k) ADDITIONAL DOCUMENTS. At Closing Time and at each Date of
      Delivery, counsel for the U.S. Underwriters shall have been furnished with
      such documents as they may reasonably require for the purpose of enabling
      them to pass upon the issuance and sale

                                      -19-

      of the U.S. Securities as herein contemplated, or in order to evidence the
      accuracy of any of the representations or warranties, or the fulfillment
      of any of the conditions, herein contained; and all proceedings taken by
      the Company in connection with the issuance and sale of the U.S.
      Securities as herein contemplated shall be reasonably satisfactory in form
      and substance to the U.S. Representatives and counsel for the U.S.
      Underwriters.

            (l) TERMINATION OF TERMS AGREEMENTS. If any condition specified in
      this Section 5 shall not have been fulfilled when and as required to be
      fulfilled, the U.S. Terms Agreement (or, with respect to the U.S.
      Underwriters' exercise the over-allotment option for the purchase of U.S.
      Option Securities on a Date of Delivery after the Closing Time, the
      obligations of the U.S. Underwriters to purchase the U.S. Option
      Securities on such Date of Delivery) may be terminated by the U.S.
      Representatives by notice to the Company at any time at or prior to the
      Closing Time (or such Date of Delivery, as applicable), and such
      termination shall be without liability of any party to any other party
      except as provided in Section 4 and except that Sections 1, 6 and 7 shall
      survive any such termination and remain in full force and effect.

      SECTION 6.  INDEMNIFICATION.

            (a) INDEMNIFICATION OF UNDERWRITERS. The Company agrees to indemnify
      and hold harmless each U.S. Underwriter and each person, if any, who
      controls any U.S. Underwriter within the meaning of Section 15 of the 1933
      Act or Section 20 of the 1934 Act as follows:

                  (1) against any and all loss, liability, claim, damage and
            expense whatsoever, as incurred, arising out of any untrue statement
            or alleged untrue statement of a material fact contained in the
            Registration Statement (or any amendment thereto), including the
            Rule 430A Information and the Rule 434 Information deemed to be a
            part thereof, if applicable, or the omission or alleged omission
            therefrom of a material fact required to be stated therein or
            necessary to make the statements therein not misleading or arising
            out of any untrue statement or alleged untrue statement of a
            material fact included in any preliminary prospectus or the
            Prospectuses (or any amendment or supplement thereto), or the
            omission or alleged omission therefrom of a material fact necessary
            in order to make the statements therein, in the light of the
            circumstances under which they were made, not misleading;

                  (2) against any and all loss, liability, claim, damage and
            expense whatsoever, as incurred, to the extent of the aggregate
            amount paid in settlement of any litigation, or any investigation or
            proceeding by any governmental agency or body, commenced or
            threatened, or of any claim whatsoever based upon any such untrue
            statement or omission, or any such alleged untrue statement or
            omission; provided that (subject to Section 6(d) below) any such
            settlement is effected with the written consent of the Company; and

                                      -20-

                  (3) against any and all expense whatsoever, as incurred
            (including the fees and disbursements of counsel chosen by the U.S.
            Representatives), reasonably incurred in investigating, preparing or
            defending against any litigation, or any investigation or proceeding
            by any governmental agency or body, commenced or threatened, or any
            claim whatsoever based upon any such untrue statement or omission,
            or any such alleged untrue statement or omission, to the extent that
            any such expense is not paid under (i) or (ii) above;

      PROVIDED, HOWEVER, that this indemnity agreement shall not apply to any
      loss, liability, claim, damage or expense to the extent arising out of any
      untrue statement or omission or alleged untrue statement or omission made
      in reliance upon and in conformity with written information furnished to
      the Company by any U.S. Underwriter through the U.S. Representatives
      expressly for use in the Registration Statement (or any amendment
      thereto), including the Rule 430A Information and the Rule 434 Information
      deemed to be a part thereof, if applicable, or any preliminary prospectus
      or the Prospectus (or any amendment or supplement thereto); PROVIDED,
      FURTHER, that this indemnity agreement with respect to any preliminary
      prospectus shall not inure to the benefit of any U.S. Underwriter from
      whom the person asserting any losses, liabilities, claims, damages or
      expenses purchased U.S. Securities, or any person controlling such U.S.
      Underwriter, if a copy of the Prospectuses (as then amended or
      supplemented if the Company shall have furnished any such amendments or
      supplements thereto, but excluding documents incorporated or deemed to be
      incorporated by reference therein) was not sent or given by or on behalf
      of such U.S. Underwriter to such person if such is required by law at or
      prior to the written confirmation of the sale of such U.S. Securities to
      such person and if the Prospectuses (as so amended or supplemented, but
      excluding documents incorporated or deemed to be incorporated by reference
      therein) would have corrected the defect giving rise to such loss,
      liability, claim, damage or expense, it being understood that this proviso
      shall have no application if such defect shall have been corrected in a
      document which is incorporated or deemed to be incorporated by reference
      in the Prospectuses.

            (b) INDEMNIFICATION OF COMPANY, DIRECTORS AND OFFICERS. Each U.S.
      Underwriter severally agrees to indemnify and hold harmless the Company,
      its directors, each of its officers who signed the Registration Statement,
      and each person, if any, who controls the Company within the meaning of
      Section 15 of the 1933 Act or Section 20 of the 1934 Act against any and
      all loss, liability, claim, damage and expense described in the indemnity
      contained in subsection (a) of this Section, as incurred, but only with
      respect to untrue statements or omissions, or alleged untrue statements or
      omissions, made in the Registration Statement (or any amendment thereto),
      including the Rule 430A Information and the Rule 434 Information deemed to
      be a part thereof, if applicable, or any preliminary prospectus or the
      Prospectus (or any amendment or supplement thereto) in reliance upon and
      in conformity with written information furnished to the Company by such
      U.S. Underwriter through the U.S. Representatives expressly for use in the
      Registration Statement (or any amendment

                                      -21-

      thereto) or such preliminary prospectus or the Prospectuses (or any
      amendment or supplement thereto).

            (c) ACTIONS AGAINST PARTIES; NOTIFICATION. Each indemnified party
      shall give notice as promptly as reasonably practicable to each
      indemnifying party of any action commenced against it in respect of which
      indemnity may be sought hereunder, but failure to so notify an
      indemnifying party shall not relieve such indemnifying party from any
      liability hereunder to the extent it is not materially prejudiced as a
      result thereof and in any event shall not relieve it from any liability
      which it may have otherwise than on account of this indemnity agreement.
      In the case of parties indemnified pursuant to Section 6(a) above, counsel
      to the indemnified parties shall be selected by the U.S. Representatives,
      and, in the case of parties indemnified pursuant to Section 6(b) above,
      counsel to the indemnified parties shall be selected by the Company. An
      indemnifying party may participate at its own expense in the defense of
      any such action; provided, however, that counsel to the indemnifying party
      shall not (except with the consent of the indemnified party) also be
      counsel to the indemnified party. In no event shall the indemnifying
      parties be liable for fees and expenses of more than one counsel (in
      addition to any local counsel) separate from their own counsel for all
      indemnified parties in connection with any one action or separate but
      similar or related actions in the same jurisdiction arising out of the
      same general allegations or circumstances. No indemnifying party shall,
      without the prior written consent of the indemnified parties, settle or
      compromise or consent to the entry of any judgment with respect to any
      litigation, or any investigation or proceeding by any governmental agency
      or body, commenced or threatened, or any claim whatsoever in respect of
      which indemnification or contribution could be sought under this Section 6
      or Section 7 hereof (whether or not the indemnified parties are actual or
      potential parties thereto), unless such settlement, compromise or consent
      (i) includes an unconditional release of each indemnified party from all
      liability arising out of such litigation, investigation, proceeding or
      claim and (ii) does not include a statement as to or an admission of
      fault, culpability or a failure to act by or on behalf of any indemnified
      party.

            (d) SETTLEMENT WITHOUT CONSENT IF FAILURE TO REIMBURSE. If at any
      time an indemnified party shall have requested an indemnifying party to
      reimburse the indemnified party for fees and expenses of counsel, such
      indemnifying party agrees that it shall be liable for any settlement of
      the nature contemplated by Sections 6(a)(2) or 6(b) effected without its
      written consent if (i) such settlement is entered into more than 45 days
      after receipt by such indemnifying party of the aforesaid request, (ii)
      such indemnifying party shall have received notice of the terms of such
      settlement at least 30 days prior to such settlement being entered into
      and (iii) such indemnifying party shall not have reimbursed such
      indemnified party for such fees and expenses of counsel in accordance with
      such request prior to the date of such settlement.

      SECTION 7. CONTRIBUTION. If the indemnification provided for in Section 6
hereof is for any reason unavailable to or insufficient to hold harmless an
indemnified party in respect of any

                                      -22-

losses, liabilities, claims, damages or expenses referred to therein, then each
indemnifying party shall contribute to the aggregate amount of such losses,
liabilities, claims, damages and expenses incurred by such indemnified party, as
incurred, (i) in such proportion as is appropriate to reflect the relative
benefits received by the Company, on the one hand, and the U.S. Underwriters, on
the other hand, from the offering of the U.S. Securities pursuant to the Terms
Agreements or (ii) if the allocation provided by clause (i) is not permitted by
applicable law, in such proportion as is appropriate to reflect not only the
relative benefits referred to in clause (i) above but also the relative fault of
the Company, on the one hand, and of the U.S. Underwriters, on the other hand,
in connection with the statements or omissions which resulted in such losses,
liabilities, claims, damages or expenses, as well as any other relevant
equitable considerations.

      The relative benefits received by the Company, on the one hand, and the
U.S. Underwriters, on the other hand, in connection with the offering of the
U.S. Securities pursuant to the Terms Agreements shall be deemed to be in the
same respective proportions as the total net proceeds from the offering of such
U.S. Securities (before deducting expenses) received by the Company and the
total underwriting discount received by the U.S. Underwriters, in each case as
set forth on the cover of the Prospectus, or, if Rule 434 is used, the
corresponding location on the Term Sheet bear to the aggregate public offering
price of such U.S. Securities as set forth on such cover.

      The relative fault of the Company, on the one hand, and the U.S.
Underwriters, on the other hand, shall be determined by reference to, among
other things, whether the untrue or alleged untrue statement of a material fact
or the omission or alleged omission to state a material fact relates to
information supplied by the Company or by the U.S. Underwriters and the parties'
relative intent, knowledge, access to information and opportunity to correct or
prevent such statement or omission.

      The Company and the U.S. Underwriters agree that it would not be just and
equitable if contribution pursuant to this Section 7 were determined by pro rata
allocation (even if the U.S. Underwriters were treated as one entity for such
purpose) or by any other method of allocation which does not take account of the
equitable considerations referred to above in this Section 7. The aggregate
amount of losses, liabilities, claims, damages and expenses incurred by an
indemnified party and referred to above in this Section 7 shall be deemed to
include any legal or other expenses reasonably incurred by such indemnified
party in investigating, preparing or defending against any litigation, or any
investigation or proceeding by any governmental agency or body, commenced or
threatened, or any claim whatsoever based upon any such untrue or alleged untrue
statement or omission or alleged omission.

      Notwithstanding the provisions of this Section 7, no U.S. Underwriter
shall be required to contribute any amount in excess of the amount by which the
total price at which the U.S. Securities underwritten by it and distributed to
the public were offered to the public exceeds the amount of any damages which
such U.S. Underwriter has otherwise been required to pay by reason of such
untrue or alleged untrue statement or omission or alleged omission.

                                      -23-

      No person guilty of fraudulent misrepresentation (within the meaning of
Section 11(f) of the 1993 Act) shall be entitled to contribution from any person
who was not guilty of such fraudulent misrepresentation.

      For purposes of this Section 7, each person, if any, who controls a U.S.
Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of
the 1934 Act shall have the same rights to contribution as such U.S.
Underwriter, and each director of the Company, each officer of the Company who
signed the Registration Statement, and each person, if any, who controls the
Company within the meaning of Section 15 of the 1933 Act or Section 20 of the
1934 Act shall have the same rights to contribution as the Company. The U.S.
Underwriters' respective obligations to contribute pursuant to this Section 7
are several in proportion to the number of U.S. Securities set forth opposite
their respective names on the U.S. Terms Agreement, and not joint.

      SECTION 8. REPRESENTATIONS, WARRANTIES AND AGREEMENTS TO SURVIVE DELIVERY.
All representations, warranties and agreements contained in this Agreement or
the U.S. Terms Agreement or in certificates of officers of the Company submitted
pursuant hereto shall remain operative and in full force and effect, regardless
of any investigation made by or on behalf of any U.S. Underwriter or controlling
person, or by or on behalf of the Company, and shall survive delivery of and
payment for the U.S. Securities.

      SECTION 9.  TERMINATION.

            (a) PURCHASE AGREEMENT. This Agreement (excluding the Terms
      Agreements) may be terminated for any reason at any time by the Company or
      by the U.S. Representatives upon the giving of 30 days' prior written
      notice of such termination to the other party hereto or as otherwise
      provided for herein.

            (b) TERMS AGREEMENT. Merrill Lynch may terminate the U.S. Terms
      Agreement, by notice to the Company, at any time at or prior to the
      Closing Time or any relevant Date of Delivery, if (i) there has been,
      since the time of execution of the Terms Agreement or since the respective
      dates as of which information is given in the U.S. Prospectus, any
      material adverse change in the condition, financial or otherwise, or in
      the earnings, business affairs or business prospects of the Company and
      the Subsidiaries considered as one enterprise, whether or not arising in
      the ordinary course of business, or (ii) there has occurred any material
      adverse change in the financial markets in the United States or in the
      international financial markets, or any outbreak of hostilities or
      escalation thereof or other calamity or crisis or any change or
      development involving a prospective change in national or international
      political, financial or economic conditions, in each case the effect of
      which is such as to make it, in the judgment of the U.S. Representatives,
      impracticable to market the Securities or to enforce contracts for the
      sale of the Securities, or (iii) trading in any securities of the Company
      has been suspended or limited by the Commission or the New York Stock
      Exchange, Inc., or if trading generally on the New York Stock Exchange or
      the American Stock Exchange or in the over-the-counter market has been
      suspended or limited,

                                      -24-

      or minimum or maximum prices for trading have been fixed, or maximum
      ranges for the prices have been required, by either of said exchanges or
      by such system or by order of the Commission, the National Association of
      Securities Dealers, Inc. or any other governmental authority, or (iv) a
      banking moratorium has been declared by either Federal or New York
      authorities.

            (c) LIABILITIES. If this Agreement or the U.S. Terms Agreement is
      terminated pursuant to this Section 9, such termination shall be without
      liability of any party to any other party except as provided in Section 4
      hereof, and provided further that Sections 1, 6 and 7 shall survive such
      termination and remain in full force and effect.

      SECTION 10. DEFAULT BY ONE OR MORE OF THE U.S. UNDERWRITERS. If one or
more of the U.S. Underwriters shall fail at the Closing Time or the relevant
Date of Delivery, as the case may be, to purchase the Securities which it or
they are obligated to purchase under the applicable Terms Agreements (the
"Defaulted Securities"), then Merrill Lynch shall have the right, within 24
hours thereafter, to make arrangements for one or more of the non-defaulting
U.S. Underwriters, or any other underwriters, to purchase all, but not less than
all, of the Defaulted Securities in such amounts as may be agreed upon and upon
the terms herein set forth; if, however, Merrill Lynch shall not have completed
such arrangements within such 24-hour period, then:

            (a) if the number or aggregate principal amount, as the case may be,
      of Defaulted Securities does not exceed 10% of the number of U.S.
      Securities to be purchased on such date pursuant to such U.S. Terms
      Agreement, the non-defaulting U.S. Underwriters shall be obligated,
      severally and not jointly, to purchase the full amount thereof in the
      proportions that their respective underwriting obligations under such
      Terms Agreements bear to the underwriting obligations of all
      non-defaulting U.S. Underwriters, or

            (b) if the number or aggregate principal amount, as the case may be,
      of Defaulted Securities exceeds 10% of the number of U.S. Securities to be
      purchased on such date pursuant to such U.S. Terms Agreement, this
      Agreement (or, with respect to the U.S. Underwriters' exercise of the
      over-allotment option for the purchase of U.S. Option Securities on a Date
      of Delivery after the Closing Time, the obligations of the U.S.
      Underwriters to purchase, and the Company to sell, such U.S. Option
      Securities on such Date of Delivery) shall terminate without liability on
      the part of any non-defaulting U.S.
      Underwriter.

      No action taken pursuant to this Section 10 shall relieve any defaulting
U.S. Underwriter from liability in respect of its default.

      In the event of any such default which does not result in (i) a
termination of the Terms Agreements or (ii) in the case of a Date of Delivery
after the Closing Time, a termination of the obligations of the U.S.
Underwriters to purchase and the Company to sell the relevant U.S. Option
Securities, as the case may be, either the U.S. Representatives or the Company
shall have the right

                                      -25-

to postpone the Closing Time or the relevant Date of Delivery, as the case may
be, for a period not exceeding seven days in order to effect any required
changes in the Registration Statement or the Prospectuses or in any other
documents or arrangements. As used herein, the term "U.S. Underwriter" includes
any person substituted for U.S. Underwriter under this Section 10.

      SECTION 11. NOTICES. All notices and other communications hereunder shall
be in writing and shall be deemed to have been duly given if mailed or
transmitted by any standard form of telecommunication. Notices to the U.S.
Underwriters shall be directed to Merrill Lynch at World Financial Center, North
Tower, New York, New York 10281-1201, attention of Wood Steinberg, Vice
President; and notices to the Company shall be directed to it at 1301 McKinney
Street, Suite 700, Houston, Texas 77010, attention of James W. Whalen, Executive
Vice President, Chief Financial Officer and Treasurer.

      SECTION 12. PARTIES. This Agreement and the U.S. Terms Agreements shall
inure to the benefit of and be binding upon the Company, Merrill Lynch and, upon
execution of the U.S. Terms Agreement, the other U.S. Underwriters and their
respective successors. Nothing expressed or mentioned in this Agreement or the
U.S. Terms Agreement is intended or shall be construed to give any person, firm
or corporation, other than the U.S. Underwriters and the Company and their
respective successors and the controlling persons and officers and directors
referred to in Sections 6 and 7 and their heirs and legal representatives, any
legal or equitable right, remedy or claim under or in respect of this Agreement
or the U.S. Terms Agreement or any provision herein contained. This Agreement
and the U.S. Terms Agreement and all conditions and provisions hereof and
thereof are intended to be for the sole and exclusive benefit of the parties
hereto and thereto and their respective successors, and said controlling persons
and officers and directors and their heirs and legal representatives, and for
the benefit of no other person, firm or corporation. No purchaser of U.S.
Securities from any U.S. Underwriter shall be deemed to be a successor by reason
merely of such purchase.

      SECTION 13. GOVERNING LAW AND TIME. THIS AGREEMENT AND THE U.S. TERMS
AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE
STATE OF NEW YORK. EXCEPT AS OTHERWISE SET FORTH HEREIN, SPECIFIED TIMES OF DAY
REFER TO NEW YORK CITY TIME.

      SECTION 14. EFFECT OF HEADLINES. The Article and Section headings herein
and any table of contents are for convenience only and shall not affect the
construction hereof.

                                      -26-

      If the foregoing is in accordance with your understanding of our
agreement, please sign and return to the Company a counterpart hereof, whereupon
this Agreement, along with all counterparts, will become a binding agreement
between Merrill Lynch and the Company in accordance with its terms.

                                         Very truly yours,

                                         TEJAS GAS CORPORATION

                                         By:_____________________________
                                         Name:___________________________
                                         Title:__________________________


CONFIRMED AND ACCEPTED, 
    as of the date first 
    above written:

MERRILL LYNCH, PIERCE, FENNER & SMITH
    INCORPORATED
OPPENHEIMER & CO., INC.
PAINEWEBBER INCORPORATED
PRUDENTIAL SECURITIES

    By:  MERRILL LYNCH, PIERCE, FENNER &
          SMITH INCORPORATED


        By:_____________________________
           Authorized Signatory

For themselves and as the U.S. Representatives of the other U.S.
Underwriters named in the U.S. Terms Agreement.

                                      -27-

                                                                  EXHIBIT 1(b)
                              TEJAS GAS CORPORATION
                            (a Delaware corporation)

                         565,000 SHARES OF COMMON STOCK

                   ------------------------------------------

                        INTERNATIONAL PURCHASE AGREEMENT

                   ------------------------------------------

Dated:  July ___, 1996

                                TABLE OF CONTENTS

INTERNATIONAL PURCHASE AGREEMENT.............................................1

SECTION  1. REPRESENTATIONS AND WARRANTIES...................................4
            (a)   REPRESENTATIONS AND WARRANTIES BY THE COMPANY..............4
                  (1)   Compliance with Registration Requirements............4
                  (2)   Incorporated Documents...............................5
                  (3)   Independent Accountants..............................5
                  (4)   Financial Statements.................................5
                  (5)   No Material Adverse Change in Business...............6
                  (6)   Good Standing of the Company.........................6
                  (7)   Good Standing of Subsidiaries........................6
                  (8)   Capitalization.......................................7
                  (9)   Authorization of Agreements..........................7
                  (10)  Authorization of Common Stock........................7
                  (11)  Absence of Defaults and Conflicts....................8
                  (12)  Violation of Law.....................................8
                  (13)  Absence of Proceedings...............................8
                  (14)  Accuracy of Exhibits.................................9
                  (15)  Description of the Securities........................9
                  (16)  Absence of Further Requirements......................9
                  (17)  Possession of Licenses and Permits...................9
                  (18)  Title to Property...................................10
                  (19)  Investment Company Act..............................10
                  (20)  Derivatives Business................................10
                  (21)  Compliance with Cuba Act............................10
            (b)   OFFICER'S CERTIFICATES....................................10

SECTION  2. SALE AND DELIVERY TO INTERNATIONAL UNDERWRITERS; CLOSING........11
            (a)   INITIAL SECURITIES........................................11
            (b)   OPTION SECURITIES.........................................11
            (c)   PAYMENT...................................................11
            (d)   DENOMINATIONS; REGISTRATION...............................12

SECTION  3. COVENANTS OF THE COMPANY........................................12
            (a)   COMPLIANCE WITH SECURITIES REGULATIONS AND COMMISSION 
                  REQUESTS..................................................12
            (b)   FILING OF AMENDMENTS......................................13
            (c)   DELIVERY OF REGISTRATION STATEMENTS.......................13
            (d)   DELIVERY OF PROSPECTUSES..................................13
            (e)   CONTINUED COMPLIANCE WITH SECURITIES LAWS.................13
            (f)   BLUE SKY QUALIFICATIONS...................................14
            (g)   RULE 158..................................................14
            (h)   USE OF PROCEEDS...........................................15
            (i)   LISTING...................................................15
            (j)   RESTRICTION ON SALE OF SECURITIES.........................15
            (k)   REPORTING REQUIREMENTS....................................15

SECTION  4. PAYMENT OF EXPENSES.............................................15
            (a)   EXPENSES..................................................15
            (b)   TERMINATION OF AGREEMENT..................................15

SECTION  5. CONDITIONS OF INTERNATIONAL MANAGERS' OBLIGATIONS...............16
            (a)   EFFECTIVENESS OF REGISTRATION STATEMENT...................16
            (b)   OPINION OF COUNSEL FOR COMPANY............................16
            (c)   OPINION OF COUNSEL FOR INTERNATIONAL MANAGERS.............16
            (d)   OFFICERS' CERTIFICATE.....................................17
            (e)   ACCOUNTANTS' COMFORT LETTERS..............................17
            (f)   BRING-DOWN COMFORT LETTER.................................17
            (g)   APPROVAL OF LISTING.......................................18
            (h)   LOCK-UP AGREEMENTS........................................18
            (i)   PURCHASE OF INITIAL U.S. SECURITIES.......................18
            (j)   CONDITIONS TO PURCHASE OF INTERNATIONAL OPTION 
                  SECURITIES................................................18
            (k)   ADDITIONAL DOCUMENTS......................................19
            (l)   TERMINATION OF TERMS AGREEMENT............................19

SECTION  6. INDEMNIFICATION.................................................19
            (a)   INDEMNIFICATION OF INTERNATIONAL MANAGERS.................19
            (b)   INDEMNIFICATION OF COMPANY, DIRECTORS AND OFFICERS........20
            (c)   ACTIONS AGAINST PARTIES; NOTIFICATION.....................21
            (d)   SETTLEMENT WITHOUT CONSENT IF FAILURE TO REIMBURSE........21

SECTION  7. CONTRIBUTION....................................................21

SECTION  8. REPRESENTATIONS, WARRANTIES AND AGREEMENTS TO SURVIVE DELIVERY..23

SECTION  9. TERMINATION.....................................................23
            (a)   PURCHASE AGREEMENT........................................23
            (b)   TERMS AGREEMENT...........................................23
            (4)   LIABILITIES...............................................24

SECTION  10.DEFAULT BY ONE OR MORE OF THE INTERNATIONAL MANAGERS............24

SECTION  11.NOTICES.........................................................25

SECTION  12.PARTIES.........................................................25

SECTION  13.GOVERNING LAW AND TIME..........................................25

SECTION  14.EFFECT OF HEADINGS..............................................25


                              TEJAS GAS CORPORATION

                            (a Delaware corporation)

                                 565,000 Shares
                                       of
                                  Common Stock
                           (Par value $0.25 per share)

                        INTERNATIONAL PURCHASE AGREEMENT

                                                                   July , 1996
MERRILL LYNCH INTERNATIONAL
CAZENOVE & CO.
NATWEST SECURITIES LIMITED
      as Lead Managers of the several International Managers
c/o   Merrill Lynch International
      Ropemaker Place
      25 Ropemaker Street
      London EC2Y 9LY
      England

Ladies and Gentlemen:

      Tejas Gas Corporation, a Delaware corporation (the "Company"), proposes to
issue and sell up to 2,260,000 shares of common stock, par value $0.25 per share
(the "Common Stock"), of the Company.

      As used herein, "Initial International Securities" shall mean the 565,000
shares of Common Stock to be initially sold to the U.S. Underwriters;
"International Option Securities" shall mean 84,750 additional shares of Common
Stock to be sold to the International Managers to cover over-allotments; and
"International Securities" shall mean the Initial International Securities and
the International Option Securities.

      The Company shall offer the International Securities through Merrill Lynch
International ("Merrill Lynch"), Cazenove & Co. and NatWest Securities Limited,
and will enter into an agreement (the "International Terms Agreement") providing
for the sale of the International Securities to, and the purchase and offering
thereof by, Merrill Lynch, Cazenove & Co. and NatWest Securities Limited and
each of the other Underwriters named in the International Terms Agreement

                                       -1-

(collectively, the "International Managers," which term shall also include any
underwriter substituted as hereinafter provided in Section 10 hereof), for whom
Merrill Lynch, Cazenove & Co. and

                                       -2-

NatWest Securities Limited are acting as representatives (in such capacity, the
"Lead Managers"), with respect to the issue and sale by the Company and the
purchase by the U.S. Underwriters, acting severally and not jointly, of the
respective numbers of shares of International Initial Securities set forth in
said International Terms Agreement, and with respect to the grant by the Company
to the International Managers, acting severally and not jointly, of the option
described in Section 2(b) hereof to purchase all or any part of the
International Option Securities to cover over-allotments, if any.

      It is understood that the Company is concurrently entering into an
agreement dated the date hereof (the "U.S. Purchase Agreement"), subject to the
completion of a related terms agreement thereto (the 'U.S. Terms Agreement")
(collectively, the International Terms Agreement and the U.S. Terms Agreement
are referred to herein as the "Terms Agreements") providing for the offering by
the Company of an aggregate of 2,260,000 shares of Common Stock (the "Initial
U.S. Securities") through arrangements with certain underwriters in the United
States (the "U.S. Underwriters") for which Merrill Lynch, Pierce, Fenner & Smith
Incorporated, Oppenheimer & Co., Inc., PaineWebber Incorporated and Prudential
Securities are acting as representative(s) (the "U.S. Representative(s)") and
the grant by the Company to the U.S. Underwriters, acting severally and not
jointly, of an option to purchase all or part of the U.S. Underwriters' pro rata
portion of up to 339,000 additional shares of Common Stock solely to cover
overallotments, if any (the "U.S. Option Securities" and, together with the
International Option Securities, the "Option Securities"). The Initial U.S.
Securities and the U.S. Option Securities are hereinafter called the "U.S.
Securities". It is understood that the Company is not obligated to sell and the
International Managers are not obligated to purchase, any Initial International
Securities unless all of the Initial U.S. Securities are contemporaneously
purchased by the U.S. Underwriters.

      The International Managers and the U.S. Underwriters are hereinafter
collectively called the "Underwriters", the Initial International Securities and
the Initial U.S. Securities are hereinafter collectively called the "Initial
Securities", and the International Securities, and the U.S. Securities are
hereinafter collectively called the "Securities".

      The Underwriters will concurrently enter into an Intersyndicate Agreement
of even date herewith (the "Intersyndicate Agreement") providing for the
coordination of certain transactions among the Underwriters under the direction
of Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated (in
such capacity, the "Global Coordinator").

      The Company understands that the International Managers propose to make a
public offering of the International Securities as soon as the Lead Managers
deem advisable after this Agreement has been executed and delivered.

      The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement on Form S-3 (No. 333-06207) and
pre-effective Amendment No. 1 thereto for the registration of the Securities
under the Securities Act of 1933, as amended (the "1933 Act"), and the offering
thereof from time to time in accordance with Rule 415 of the rules and
regulations

                                       -3-

of the Commission under the 1933 Act (the "1933 Act Regulations"), and the
Company has filed such post-effective amendments thereto as may be required
prior to the execution of the Terms Agreements. Promptly after execution and
delivery of this Agreement, the Company will either (i) prepare and file a
prospectus in accordance with the provisions of Rule 430A ("Rule 430A") of the
rules and regulations of the Commission under the 1933 Act (the "1933 Act
Regulations") and paragraph (b) of Rule 424 ("Rule 424(b)") of the 1933 Act
Regulations or (ii) if the Company has elected to rely upon Rule 434 ("Rule
434") of the 1933 Act Regulations, prepare and file a term sheet (a "Term
Sheet") in accordance with the provisions of Rule 434 and Rule 424(b). Two forms
of prospectus are to be used in connection with the offering and sale of the
Securities: one relating to the International Securities (the "Form of
International Prospectus") and one relating to the U.S. Securities (the "Form of
U.S. Prospectus"). The Form of International Prospectus is identical to the Form
of U.S. Prospectus, except for the front cover and back cover pages and the
information under the caption "Underwriting" and the inclusion in the Form of
International Prospectus of a section under the caption "Certain United States
Tax Considerations for Non-United States Holders.") The information included in
any such prospectus or in any such Term Sheet, as the case may be, that was
omitted from such registration statement at the time it became effective but
that is deemed to be part of such registration statement at the time it became
effective (a) pursuant to paragraph (b) of Rule 430A is referred to as "Rule
430A Information" or (b) pursuant to paragraph (d) of Rule 434 is referred to as
"Rule 434 Information." Each Form of International Prospectus and Form of U.S.
Prospectus used before such registration statement became effective, and any
prospectus that omitted, as applicable, the Rule 430A Information or the Rule
434 Information, that was used after such effectiveness and prior to the
execution and delivery of this Agreement, is herein called a "preliminary
prospectus." Such registration statement, including the exhibits thereto,
schedules thereto, if any, and the documents incorporated by reference therein
pursuant to Item 12 of Form S-3 under the 1933 Act, at the time it became
effective and including the Rule 430A Information and the Rule 434 Information,
as applicable, is herein called the "Registration Statement." Any registration
statement filed pursuant to Rule 462(b) of the 1933 Act Regulations is herein
referred to as the "Rule 462(b) Registration Statement," and after such filing
the term "Registration Statement" shall include the Rule 462(b) Registration
Statement. The final Form of International Prospectus and the final Form of U.S.
Prospectus, including the documents incorporated by reference therein pursuant
to Item 12 of Form S-3 under the 1933 Act, in the forms first furnished to the
Underwriters for use in connection with the offering of the Securities are
herein called the "International Prospectus" and the "U.S. Prospectus,"
respectively, and collectively, the "Prospectuses." If Rule 434 is relied on,
the terms "International Prospectus" and "U.S. Prospectus" shall refer to the
preliminary International Prospectus dated July 5, 1996 and preliminary U.S.
Prospectus dated July 5, 1996, respectively, each together with the applicable
Term Sheet and all references in this Agreement to the date of such Prospectuses
shall mean the date of the applicable Term Sheet. For purposes of this
Agreement, all references to the Registration Statement, any preliminary
prospectus, the International Prospectus, the U.S. Prospectus or any Term Sheet
or any amendment or supplement to any of the foregoing shall be deemed to
include the copy filed with the Commission pursuant to its Electronic Data
Gathering, Analysis and Retrieval system ("EDGAR").

                                       -4-

      All references in this Agreement to financial statements and schedules and
other information which is "contained," "included" or "stated" in the
Registration Statement, any preliminary prospectus (including the Form of U.S.
Prospectus and Form of International Prospectus) or the Prospectuses (or other
references of like import) shall be deemed to mean and include all such
financial statements and schedules and other information which is incorporated
by reference in the Registration Statement, any preliminary prospectus
(including the Form of U.S. Prospectus and Form of International Prospectus) or
the Prospectuses, as the case may be; and all references in this Agreement to
amendments or supplements to the Registration Statement, any preliminary
prospectus or the Prospectuses shall be deemed to mean and include the filing of
any document under the Securities Exchange Act of 1934 (the "1934 Act") which is
incorporated by reference in the Registration Statement, such preliminary
prospectus or the Prospectuses, as the case may be.

      SECTION 1.   REPRESENTATIONS AND WARRANTIES.

      (a) REPRESENTATIONS AND WARRANTIES BY THE COMPANY. The Company represents
and warrants to Merrill Lynch, as of the date hereof, and to each International
Manager named in the International Terms Agreement, as of the date thereof, as
of the Closing Time referred to in Section 2(c) hereof, and as of each Date of
Delivery (if any) referred to in Section 2(b) hereof, and agrees with each
International Manager, as follows:

            (1) COMPLIANCE WITH REGISTRATION REQUIREMENTS. The Company meets the
      requirements for use of Form S-3 under the 1933 Act. The Registration
      Statement has become effective under the 1933 Act and no stop order
      suspending the effectiveness of the Registration Statement has been issued
      under the 1933 Act and no proceedings for that purpose have been
      instituted or are pending or, to the knowledge of the Company, are
      contemplated by the Commission, and any request on the part of the
      Commission for additional information has been complied with.

            At the respective times the Registration Statement and any
      post-effective amendments thereto (including, the filing of the Company's
      most recent Annual Report on Form 10-K with the Commission (the "Annual
      Report on Form 10-K")) became effective and at the Closing Time (and, if
      any International Option Securities are purchased, at the Date of
      Delivery), the Registration Statement and any amendments and supplements
      thereto complied and will comply in all material respects with the
      requirements of the 1933 Act and the 1933 Act Regulations and did not and
      will not contain an untrue statement of a material fact or omit to state a
      material fact required to be stated therein or necessary to make the
      statements therein not misleading. Neither of the Prospectuses nor any
      amendments or supplements thereto, at the time the Prospectuses or any
      amendments or supplements thereto were issued and at the Closing Time
      (and, if any International Option Securities are purchased, at the Date of
      Delivery), included or will include an untrue statement of a material fact
      or omitted or will omit to state a material fact necessary in order to
      make the statements therein, in the light of the circumstances under which
      they were made, not misleading. If the Company elects to rely upon Rule
      434 of the 1933 Act Regulations, the Company will

                                       -5-

      comply with the requirements of Rule 434. Notwithstanding the foregoing,
      the representations and warranties in this subsection shall not apply to
      statements in or omissions from the Registration Statement or the
      International Prospectus made in reliance upon and in conformity with
      information furnished to the Company in writing by any International
      Manager through the Lead Managers expressly for use in the Registration
      Statement or the Prospectuses.

            Each preliminary prospectus and the prospectus filed as part of the
      Registration Statement as originally filed or as part of any amendment
      thereto, or filed pursuant to Rule 424 under the 1933 Act, complied when
      so filed in all material respects with the 1933 Act Regulations and, if
      applicable, each preliminary prospectus and the International Prospectus
      delivered to the International Managers for use in connection with the
      offering of the International Securities will, at the time of delivery, be
      identical to the electronically transmitted copies thereof filed with the
      Commission pursuant to EDGAR, except to the extent permitted by Regulation
      S-T.

            (2) INCORPORATED DOCUMENTS. The documents incorporated or deemed to
      be incorporated by reference in the Registration Statement and the
      Prospectuses, at the time they were or hereafter are filed with the
      Commission, complied and will comply in all material respects with the
      requirements of the 1934 Act and the rules and regulations of the
      Commission thereunder (the "1934 Act Regulations"), and, when read
      together with the other information in the Prospectuses, at the date of
      the Prospectus, at the Closing Time (and, if any International Option
      Securities are purchased, at the Date of Delivery) did not and will not
      contain an untrue statement of a material fact or omit to state a material
      fact required to be stated therein or necessary to make the statements
      therein not misleading.

            (3) INDEPENDENT ACCOUNTANTS. The accountants who certified the
      financial statements and supporting schedules included in the Registration
      Statement and the Prospectus are independent public accountants as
      required by the 1933 Act and the 1933 Act Regulations.

            (4) FINANCIAL STATEMENTS. The financial statements of the Company
      included in the Registration Statement and the Prospectuses, together with
      the related schedules and notes, as well as those financial statements,
      schedules and notes of any other entity included therein, present fairly
      the financial position of the Company and its consolidated subsidiaries,
      or such other entity, as the case may be, at the dates indicated and the
      statement of operations, stockholders' equity and cash flows of the
      Company and its consolidated subsidiaries, or such other entity, as the
      case may be, for the periods specified. Except (A) as otherwise stated in
      the Registration Statement or (B) in the case of the unaudited interim
      financial statements and the pro forma financial information incorporated
      by reference therein, as otherwise stated therein, such financial
      statements have been prepared in conformity with generally accepted
      accounting principles ("GAAP") applied on a consistent basis throughout
      the periods involved. The supporting schedules, if any, included in the

                                       -6-

      Registration Statement and the Prospectuses present fairly in accordance
      with GAAP the information required to be stated therein. The selected
      financial data and the summary financial information included in the
      Prospectuses present fairly the information shown therein and have been
      compiled on a basis consistent with that of the audited financial
      statements and the unaudited financial statements, as the case may be,
      included in the Registration Statement and the Prospectuses. In addition,
      any pro forma financial statements of the Company and its subsidiaries and
      the related notes thereto included in the Registration Statement and the
      Prospectuses present fairly the information shown therein, have been
      prepared in accordance with the Commission's rules and guidelines with
      respect to pro forma financial statements and have been properly compiled
      on the bases described therein, and the assumptions used in the
      preparation thereof are reasonable and the adjustments used therein are
      appropriate to give effect to the transactions and circumstances referred
      to therein.

            (5) NO MATERIAL ADVERSE CHANGE IN BUSINESS. Since the respective
      dates as of which information is given in the Registration Statement and
      the Prospectuses, except as otherwise stated therein, (A) there has been
      no material adverse change in the condition, financial or otherwise, or in
      the earnings, business affairs or business prospects of the Company and
      its subsidiaries considered as one enterprise (a "Material Adverse
      Effect"), whether or not arising in the ordinary course of business, (B)
      there have been no transactions entered into by the Company or any of its
      subsidiaries, other than those arising in the ordinary course of business,
      which are material with respect to the Company and its subsidiaries
      considered as one enterprise and (C) except for the initial and regular
      quarterly dividends on the Company's outstanding shares of preferred
      stock, in amounts per share that are consistent with past practice or the
      applicable charter document or supplement thereto, there has been no
      dividend or distribution of any kind declared, paid or made by the Company
      on any class of its capital stock.

            (6) GOOD STANDING OF THE COMPANY. The Company has been duly
      organized and is validly existing as a corporation in good standing under
      the laws of the state of Delaware and has corporate power and authority to
      own, lease and operate its properties and to conduct its business as
      described in the Prospectus and to enter into and perform its obligations
      under, or as contemplated under, this Agreement and the applicable Terms
      Agreements. The Company is duly qualified as a foreign corporation to
      transact business and is in good standing in each other jurisdiction in
      which such qualification is required, whether by reason of the ownership
      or leasing of property or the conduct of business, except where the
      failure to so qualify or be in good standing would not result in a
      Material Adverse Effect.

            (7) GOOD STANDING OF SUBSIDIARIES. Each "significant subsidiary" of
      the Company (as such term is defined in Rule 1-02 of Regulation S-X
      promulgated under the 1933 Act) (each, a "Subsidiary" and collectively,
      the "Subsidiaries") has been duly organized and is validly existing as a
      corporation (or partnership or joint venture in the case of a
      non-corporate subsidiary) in good standing under the laws of the
      jurisdiction of its organization, has corporate power (or partnership or
      joint venture power in the case of a non-corporate

                                       -7-

      subsidiary) and authority to own, lease and operate its properties and to
      conduct its business as described in the Prospectuses and is duly
      qualified as a foreign corporation (or partnership or joint venture in the
      case of a non-corporate subsidiary) to transact business and is in good
      standing in each jurisdiction in which such qualification is required,
      whether by reason of the ownership or leasing of property or the conduct
      of business, except where the failure to so qualify or be in good standing
      would not result in a Material Adverse Effect. Except as otherwise stated
      in the Registration Statement and the Prospectus, all of the issued and
      outstanding capital stock of each Subsidiary has been duly authorized and
      is validly issued, fully paid and non-assessable and is owned by the
      Company, directly or through subsidiaries, free and clear of any security
      interest, mortgage, pledge, lien, encumbrance, claim or equity other than
      the pledges to banks under the loan agreements of the Company. None of the
      outstanding shares of capital stock of the Subsidiaries was issued in
      violation of preemptive or other similar rights arising by operation of
      law, under the charter or by-laws of any Subsidiary or under any agreement
      to which the Company or any Subsidiary is a party, or otherwise.

            (8) CAPITALIZATION. The authorized, issued and outstanding capital
      stock of the Company is as set forth in the Prospectuses in the column
      entitled "Actual" under the caption "Capitalization" (except for
      subsequent issuances thereof, if any, contemplated under this Agreement
      and the International Purchase Agreement, pursuant to employee benefit
      plans referred to in the Prospectuses or pursuant to the exercise of
      convertible securities or options referred to in the Prospectuses). Such
      shares of capital stock have been duly authorized and validly issued by
      the Company and are fully paid and non-assessable and none of such shares
      of capital stock were issued in violation of preemptive or other similar
      rights arising by operation of law, under the charter and bylaws of the
      Company or under any agreement to which the Company or any of its
      subsidiaries is a party, or otherwise.

            (9) AUTHORIZATION OF AGREEMENTS. This Agreement and the U.S.
      Purchase Agreement have been, and the related Terms Agreements thereto as
      of the date thereof will have been, duly authorized, executed and
      delivered by the Company.

            (10) AUTHORIZATION OF COMMON STOCK. The Securities being sold to the
      Underwriters pursuant to the respective Terms Agreements have been, or as
      of the date of the Terms Agreements will have been, duly authorized by the
      Company for issuance and sale to the International Managers pursuant to
      this Agreement and the U.S. Underwriters pursuant to the U.S. Purchase
      Agreement, respectively. Such Securities, when issued and delivered by the
      Company pursuant to this Agreement, the U.S. Purchase Agreement and the
      applicable Terms Agreements, against payment of the consideration
      therefore specified in such Terms Agreements, will be validly issued,
      fully paid and non-assessable and will not be subject to preemptive or
      other similar rights arising by operation of law, under the charter and
      by-laws of the Company or under any agreement to which the Company or any
      of its subsidiaries is a party, or otherwise. No holder of the Securities
      will be subject to personal liability by reason of being such a holder.
      There are no persons with registration or other

                                       -8-

      similar rights to have securities of the Company registered pursuant to
      the Registration Statement or otherwise registered by the Company under
      the 1933 Act as a result thereof.

            (11) ABSENCE OF DEFAULTS AND CONFLICTS. Neither the Company nor any
      subsidiary is in violation of its charter or by-laws or in default in the
      performance or observance of any material obligation, agreement, covenant
      or condition contained in any contract, indenture, mortgage, deed of
      trust, loan or credit agreement, note, lease or other agreement or
      instrument to which the Company or any subsidiary is a party or by which
      it or any of them may be bound, or to which any of the property or assets
      of the Company or any subsidiary is subject (collectively, "Agreements and
      Instruments"), except for such defaults as would not result in a Material
      Adverse Effect. The execution, delivery and performance of this Agreement,
      the U.S. Purchase Agreement and the applicable Terms Agreements and any
      other agreement or instrument entered into or issued or to be entered into
      or issued by the Company in connection with the transactions contemplated
      hereby or thereby or in the Registration Statement and the Prospectuses
      and the consummation of the transactions contemplated in this Agreement,
      the U.S. Purchase Agreement and in the Registration Statement (including
      the issuance and sale of the Securities and the use of the proceeds from
      the sale of the Securities as described in the Prospectuses under the
      caption "Use of Proceeds") and compliance by the Company with its
      obligations under this Agreement and the U.S. Purchase Agreement have been
      duly authorized by all necessary corporate action and do not and will not,
      whether with or without the giving of notice or passage of time or both,
      conflict with or constitute a breach of, or default or Repayment Event (as
      defined below) under, or result in the creation or imposition of any lien,
      charge or encumbrance upon any assets, properties or operations of the
      Company or any subsidiary pursuant to, any Agreements and Instruments
      ,except for such conflicts, breaches, defaults, events or liens, charges
      or encumbrances that would not result in a Material Adverse Effect, nor
      will such action result in any violation of the provisions of the charter
      or by-laws of the Company or any Subsidiary or any applicable law,
      statute, rule, regulation, judgment, order, writ or decree of any
      government, government instrumentality or court, domestic or foreign,
      having jurisdiction over the Company or any subsidiary or any of their
      assets, properties or operations. As used herein, a "Repayment Event"
      means any event or condition which gives the holder of any note, debenture
      or other evidence of indebtedness (or any person acting on such holder's
      behalf) the right to require the repurchase, redemption or repayment of
      all or a portion of such indebtedness by the Company or any Subsidiary
      other than the requirement to use proceeds of the offering contemplated
      hereby or in the U.S. Purchase Agreement to pay down the loan agreements.

            (12) VIOLATION OF LAW. Neither the Company nor any subsidiary is in
      violation of any law, ordinance, governmental rule or regulation or court
      decree to which it may be subject, which violation might result in a
      Material Adverse Effect.

            (13) ABSENCE OF PROCEEDINGS. Except as disclosed in the Registration
      Statement and the Prospectuses, there is no action, suit, proceeding,
      inquiry or investigation before or

                                       -9-

      by any court or governmental agency or body, domestic or foreign, now
      pending, or, to the knowledge of the Company, threatened, against or
      affecting the Company or any subsidiary, which is required to be disclosed
      in the Registration Statement and the Prospectuses (other than as stated
      therein), or which might reasonably be expected to result in a Material
      Adverse Effect, or which might reasonably be expected to materially and
      adversely affect the assets, properties or operations thereof or the
      consummation of this Agreement, the U.S. Purchase Agreement, the
      applicable Terms Agreements or the transactions contemplated herein or
      therein. The aggregate of all pending legal or governmental proceedings to
      which the Company or any subsidiary is a party or of which any of their
      respective assets, properties or operations is the subject which are not
      described in the Registration Statement and the Prospectuses, including
      ordinary routine litigation incidental to the business, could not
      reasonably be expected to result in a Material Adverse Effect.

            (14) ACCURACY OF EXHIBITS. There are no contracts or documents which
      are required to be described in the Registration Statement, the
      Prospectuses or the documents incorporated by reference therein or to be
      filed as exhibits thereto which have not been so described and filed as
      required.

            (15) DESCRIPTIONS OF THE SECURITIES. The Securities being sold
      pursuant to the Terms Agreements, as of the date of the Prospectuses, will
      conform in all material respects to the statements relating thereto
      contained in the Prospectus.

            (16) ABSENCE OF FURTHER REQUIREMENTS. No filing with, or
      authorization, approval, consent, license, order, registration,
      qualification or decree of, any court or governmental authority or agency
      is necessary or required for the performance by the Company of its
      obligations under this Agreement, the U.S. Purchase Agreement or the Terms
      Agreements or in connection with the transactions contemplated under this
      Agreement, the U.S. Purchase Agreement or the Terms Agreements, except
      such as have been already obtained or as may be required under state
      securities laws.

            (17) POSSESSION OF LICENSES AND PERMITS. The Company and each
      subsidiary possess such permits, licenses, approvals, consents and other
      authorizations (collectively, "Governmental Licenses") issued by the
      appropriate federal, state, local or foreign regulatory agencies or bodies
      necessary to conduct the business now operated by them, except where the
      failure so to comply would not, singly or in the aggregate, result in a
      Material Adverse Effect. The Company and each subsidiary are in compliance
      with the terms and conditions of all such Governmental Licenses, except
      where the failure so to comply would not, singly or in the aggregate,
      result in a Material Adverse Effect. All of the Governmental Licenses are
      valid and in full force and effect, except when the invalidity of such
      Governmental Licenses or the failure of such Governmental Licenses to be
      in full force and effect would not result in a Material Adverse Effect.
      Neither the Company nor any subsidiary has received any notice of
      proceedings relating to the revocation or modification of any such

                                      -10-

      Governmental Licenses which, singly or in the aggregate, if the subject of
      an unfavorable decision, ruling or finding, would result in a Material
      Adverse Effect.

            (18) TITLE TO PROPERTY. The Company and the subsidiaries have good
      and indefeasible title to all real property owned by the Company and the
      subsidiaries and good title to all other properties owned by them, in each
      case, free and clear of all mortgages, pledges, liens, security interests,
      claims, restrictions or encumbrances of any kind, except (A) as otherwise
      stated in the Registration Statement and the Prospectuses or (B) those
      which do not, singly or in the aggregate, materially affect the value of
      such property and do not interfere with the use made and proposed to be
      made of such property by the Company or any subsidiary. All of the leases
      and subleases material to the business of the Company and the
      subsidiaries, considered as one enterprise, and under which the Company or
      any subsidiary holds properties described in the Prospectuses, are in full
      force and effect, and neither the Company nor any subsidiary has received
      any notice of any material claim of any sort that has been asserted by
      anyone adverse to the rights of the Company or any subsidiary under any of
      the leases or subleases mentioned above, or affecting or questioning the
      rights of the Company or such subsidiary to the continued possession of
      the leased or subleased premises under any such lease or sublease.

            (19) INVESTMENT COMPANY ACT. The Company is not, and upon the
      issuance and sale of the Securities as herein contemplated and the
      application of the net proceeds therefrom as described in the Prospectuses
      will not be an "investment company" or an entity "controlled" by an
      "investment company" as such terms are defined in the Investment Company
      Act of 1940, as amended (the "1940 Act").

            (20) DERIVATIVES BUSINESS. The internal controls and policies used
      in connection with the natural gas derivatives business of the Company and
      each subsidiary are reasonable and to the best knowledge of the Company,
      adequate in light of the business conducted.

            (21) COMPLIANCE WITH CUBA ACT. The Company has complied with, and is
      and will be in compliance with, the provisions of that certain Florida act
      relating to disclosure of doing business with Cuba, codified as Section
      517.075 of the Florida statutes, and the rules and regulations thereunder
      or is exempt therefrom.

      (b) OFFICERS' CERTIFICATES. Any certificate signed by any officer of the
Company or any Subsidiary and delivered to the Global Coordinator, the Lead
Managers or to counsel for the International Managers in connection with the
offering of the Securities shall be deemed a representation and warranty by the
Company to each International Manager as to the matters covered thereby on the
date of such certificate.

                                      -11-

      SECTION 2. SALE AND DELIVERY TO INTERNATIONAL MANAGERS; CLOSING.

      (a) INITIAL SECURITIES. The several commitments of the International
Managers to purchase the Initial International Securities pursuant to the
International Terms Agreement shall be deemed to have been made on the basis of
the representations and warranties herein contained and subject to the terms and
conditions herein set forth.

      (b) OPTION SECURITIES. In addition, on the basis of the representations
and warranties herein contained and subject to the terms and conditions herein
set forth, the Company hereby grants an option to the International Managers,
severally and not jointly, to purchase up to the number of International Option
Securities to cover over-allotments at a price per International Option Security
equal to the price per Initial International Security, less an amount equal to
any dividends or distributions declared by the Company and paid or payable on
the Initial International Securities but not payable on the International Option
Securities. Such option will expire 30 days after the date of the Terms
Agreements, and may be exercised in whole or in part from time to time only for
the purpose of covering over-allotments which may be made in connection with the
offering and distribution of the Initial International Securities upon notice by
the Global Coordinator to the Company setting forth the number of U.S. Option
Securities as to which the several International Managers are then exercising
the option and the time, date and place of payment and delivery for such
International Option Securities. Any such time and date of payment and delivery
(each, a "Date of Delivery") shall be determined by the Global Coordinator, but
shall not be later than seven full business days after the exercise of said
option, nor in any event prior to the Closing Time (as hereinafter defined),
unless otherwise agreed upon by the Global Coordinator and the Company. If the
option is exercised as to all or any portion of the International Option
Securities, each of the International Managers, severally and not jointly, will
purchase that proportion of the total number of International Option Securities
then being purchased which the number of Initial International Securities each
such International Underwriter has severally agreed to purchase as set forth in
the International Terms Agreement bears to the total number of Initial
International Securities, subject to such adjustments as the Global Coordinator
in its discretion shall make to eliminate any sales or purchases of a fractional
number of International Option Securities.

      (c) PAYMENT. Payment of the purchase price for, and delivery of, the
Initial International Securities shall be made at the office of Andrews & Kurth
L.L.P., 4200 Texas Commerce Tower, Suite 4300, Houston, Texas 77002, or at such
other place as shall be agreed upon by the Global Coordinator and the Company,
at 10:00 A.M. (Eastern time) on the third (fourth, if the pricing occurs after
4:30 P.M. (Eastern time) on any given day) business day after the date hereof
(unless postponed in accordance with the provisions of Section 10 hereof), or
such other time not later than ten business days after such date as shall be
agreed upon by the Global Coordinator and the Company (such time and date of
payment and delivery being herein called "Closing Time").

      In addition, in the event that the International Managers have exercised
their option to purchase any or all of the International Option Securities,
payment of the purchase price for, and delivery of such International Option
Securities shall be made at the above-mentioned offices of

                                      -12-

Andrews & Kurth L.L.P., or at such other place as shall be agreed upon by the
Global Coordinator and the Company, on the relevant Date of Delivery as
specified in the notice from the Global Coordinator to the Company.

      Payment shall be made to the Company by wire transfer in same day funds to
a bank account designated by the Company, against delivery to the Lead Managers
for the respective accounts of the International Managers of certificates for
the International Securities to be purchased by them. It is understood that each
International Manager has authorized the Lead Managers, for its account, to
accept delivery of, receipt for, and make payment of the purchase price for, the
Initial International Securities and the International Option Securities, if
any, which it has severally agreed to purchase. The Lead Managers, individually
and not as representative of the International Managers, may (but shall not be
obligated to) make payment of the purchase price for the Initial International
Securities and the International Option Securities, if any, to be purchased by
any International Manager whose funds have not been received by the Closing Time
or the relevant Date of Delivery, as the case may be, but such payment shall not
relieve such International Manager from its obligations hereunder.

      (d) DENOMINATIONS; REGISTRATION. The Initial International Securities and
certificates therefor and the International Option Securities, if any, and
certificates therefor shall be in such denominations and registered in such
names as the Lead Managers may request in writing at least one full business day
prior to the Closing Time or the relevant Date of Delivery, as the case may be.
The Initial International Securities and certificates therefor and the
International Option Securities, if any, and certificates therefor will be made
available for examination and packaging by the Lead Managers in the City of New
York not later than 10:00 A.M. (Eastern time) on the business day prior to the
Closing Time or the relevant Date of Delivery, as the case may be.

      SECTION 3. COVENANTS OF THE COMPANY. The Company covenants with Merrill
Lynch and with each International Manager participating in the offering of
International Securities as follows:

            (a) COMPLIANCE WITH SECURITIES REGULATIONS AND COMMISSION REQUESTS.
      The Company, subject to Section 3(b), will comply with the requirements of
      Rule 430A or Rule 434, as applicable, of the 1933 Act Regulations and will
      notify the Global Coordinator immediately, and confirm the notice in
      writing, of (i) the effectiveness of any post-effective amendment to the
      Registration Statement, or the filing of any supplement or amendment to
      the Prospectuses, (ii) the receipt of any comments from the Commission,
      (iii) any request by the Commission for any amendment to the Registration
      Statement or any amendment or supplement to the Prospectuses or for
      additional information, and (iv) the issuance by the Commission of any
      stop order suspending the effectiveness of the Registration Statement or
      of any order preventing or suspending the use of any preliminary
      prospectus, or of the suspension of the qualification of the Securities
      for offering or sale in any jurisdiction, or of the initiation or
      threatening of any proceedings for any of such purposes. The Company will
      promptly effect the filings necessary pursuant to Rule 424 and will take
      such steps as it deems necessary to ascertain promptly whether the
      Prospectus transmitted for filing under

                                      -13-

      Rule 424 was received for filing by the Commission and, in the event that
      it was not, it will promptly file the Prospectus. The Company will make
      every reasonable effort to prevent the issuance of any stop order and, if
      any stop order is issued, to obtain the lifting thereof at the earliest
      possible moment.

            (b) FILING OF AMENDMENTS. The Company will give the Global
      Coordinator notice of its intention to file or prepare any amendment to
      the Registration Statement or any amendment, supplement or revision to
      either the Prospectuses included in the Registration Statement at the time
      it became effective or to the Prospectuses filed after the effectiveness
      of the Registration Statement, whether pursuant to the 1933 Act, the 1934
      Act or otherwise, will furnish the Global Coordinator with copies of any
      such documents a reasonable amount of time prior to such proposed filing
      or use, as the case may be, and will not file or use any such document to
      which the Global Coordinator or counsel for the International Managers
      shall object.

            (c) DELIVERY OF REGISTRATION STATEMENTS. The Company has furnished
      or will deliver to the Lead Managers and counsel for the International
      Managers, without charge, (i) signed copies of the Registration Statement
      as originally filed and of each amendment thereto (including exhibits
      filed therewith or incorporated by reference therein and documents
      incorporated or deemed to be incorporated by reference therein), (ii)
      copies of the Registration Statement and each amendment thereto in the
      form electronically filed with the Commission pursuant to EDGAR and (iii)
      signed copies of all consents and certificates of experts, and will also
      deliver to the Lead Managers, without charge, a conformed copy of the
      Registration Statement as originally filed and of each amendment thereto
      (without exhibits) for each of the International Managers. The
      Registration Statement and any amendments or supplements thereto furnished
      to the International Managers will be identical to the electronically
      transmitted copies thereof filed with the Commission pursuant to EDGAR,
      except to the extent permitted by Regulation S-T.

            (d) DELIVERY OF PROSPECTUSES. The Company has delivered to each
      International Manager, without charge, as many copies of each preliminary
      prospectus as such International Manager reasonably requested, and the
      Company hereby consents to the use of such copies for purposes permitted
      by the 1933 Act. The Company will furnish to each International Managers,
      without charge, during the period when the International Prospectus is
      required to be delivered under the 1933 Act or the 1934 Act, such number
      of copies of the International Prospectus (as amended or supplemented) as
      such International Managers may reasonably request. The International
      Prospectus and any amendments or supplements thereto furnished to the
      International Managers will be identical to the electronically transmitted
      copies thereof filed with the Commission pursuant to EDGAR, except to the
      extent permitted by Regulation S-T.

            (e) CONTINUED COMPLIANCE WITH SECURITIES LAWS. The Company will
      comply with the 1933 Act and the 1933 Act Regulations and the 1934 Act and
      the 1934 Act Regulations

                                      -14-

      so as to permit the completion of the distribution of the Securities as
      contemplated in this Agreement, the U.S. Purchase Agreement and the Terms
      Agreements, and in the Registration Statement and the Prospectuses. If at
      any time when a Prospectus is required by the 1933 Act or the 1934 Act to
      be delivered in connection with sales of the Securities, any event shall
      occur or condition shall exist as a result of which it is necessary, in
      the opinion of counsel for the International Managers or for the Company,
      to amend the Registration Statement in order that the Registration
      Statement will not contain an untrue statement of a material fact or omit
      to state a material fact required to be stated therein or necessary to
      make the statements therein not misleading or amend or supplement any
      Prospectus in order that the Prospectuses will not include any untrue
      statement of a material fact or omit to state a material fact necessary in
      order to make the statements therein not misleading in the light of the
      circumstances existing at the time it is delivered to a purchaser, or if
      it shall be necessary, in the opinion of such counsel, at any such time to
      amend the Registration Statement or amend or supplement any Prospectus in
      order to comply with the requirements of the 1933 Act or the 1933 Act
      Regulations, the Company will promptly prepare and file with the
      Commission, subject to Section 3(b), such amendment or supplement as may
      be necessary to correct such statement or omission or to make the
      Registration Statement or the Prospectuses comply with such requirements,
      and the Company will furnish to the International Managers such number of
      copies of such amendment or supplement as the International Managers may
      reasonably request.

            (f) BLUE SKY QUALIFICATIONS. The Company will use reasonable
      commercial efforts, in cooperation with the International Managers, to
      qualify the International Securities for offering and sale under the
      applicable securities laws of such states and other jurisdictions
      (domestic or foreign) as the Global Coordinator may designate and to
      maintain such qualifications in effect for so long as may be required by
      the laws of such jurisdiction to continue such qualification in effect for
      so long as may be required in connection with the distribution of the
      International Securities; provided, however, that the Company shall not be
      obligated to file any general consent to service of process or to qualify
      as a foreign corporation or as a dealer in securities in any jurisdiction
      in which it is not so qualified or to subject itself to taxation in
      respect of doing business in any jurisdiction in which it is not otherwise
      so subject. In each jurisdiction in which the International Securities
      have been so qualified, the Company will file such statements and reports
      as may be required by the laws of such jurisdiction to continue such
      qualification in effect for so long as may be required in connection with
      the distribution of the International Securities.

            (g) RULE 158. The Company will timely file such reports pursuant to
      the 1934 Act as are necessary in order to make generally available to its
      security holders as soon as practicable an earnings statement for the
      purposes of, and to provide the benefits contemplated by, the last
      paragraph of Section 11(a) of the 1933 Act.

                                      -15-

            (h) USE OF PROCEEDS. The Company will use the net proceeds received
      by it from the sale of the Securities in the manner specified in the
      Prospectuses under "Use of Proceeds".

            (i) LISTING. The Company will use its reasonable commercial efforts
      to effect the listing of the Securities, subject to notice of issuance to
      be provided at the Closing Time, on the New York Stock Exchange.

            (j) RESTRICTION ON SALE OF SECURITIES. Between the date of the Terms
      Agreement and the Closing Time or such other date specified in the Terms
      Agreement, the Company will not, without the prior written consent of the
      Global Coordinator, directly or indirectly, issue, sell, offer to sell,
      grant any option for the sale of, or otherwise dispose of, any share of
      Common Stock or Common Stock equivalent.

            (k) REPORTING REQUIREMENTS. The Company, during the period when the
      Prospectuses are required to be delivered under the 1933 Act or the 1934
      Act, will file all documents required to be filed with the Commission
      pursuant to the 1934 Act within the time periods required by the 1934 Act
      and the 1934 Act Regulations.

      SECTION 4. PAYMENT OF EXPENSES. (a) EXPENSES. The Company will pay all
expenses incident to the performance of its obligations under this Agreement or
the International Terms Agreement, including (i) the preparation, printing and
filing of the Registration Statement (including financial statements and
exhibits) as originally filed and of each amendment thereto, (ii) the
duplication and delivery to the International Managers of this Agreement, the
Terms Agreement, any Agreement Among International Managers and such other
documents as may be required in connection with the offering, purchase, sale and
delivery of the International Securities, (iii) the preparation, issuance and
delivery of the International Securities and the certificates for the
International Securities to the International Managers, including any stock or
other transfer taxes and any stamp or other duties payable upon the sale,
issuance or delivery of the Securities to the International Managers and the
transfer of the International Securities between the U.S. Underwriters and the
International Managers, (iv) the fees and disbursements of the Company's
counsel, accountants and other advisors or agents (including transfer agents and
registrars), (v) the qualification of the International Securities under
securities laws in accordance with the provisions of Section 3(f) hereof,
including filing fees and the reasonable fees and disbursements of counsel for
the International Managers in connection therewith and in connection with the
preparation, printing and delivery of the Blue Sky Survey, any Legal Investment
Survey, and any amendment thereto, (vi) the printing and delivery to the
International Managers of copies of each preliminary prospectus, any Term Sheet,
and the Prospectuses and any amendments or supplements thereto and (vii) the
fees and expenses incurred in connection with the listing of the International
Securities on the New York Stock Exchange.

      (B) TERMINATION OF AGREEMENT. If the Terms Agreement is terminated by the
Lead Managers in accordance with the provisions of Section 5(l) or Section
9(a)(i) hereof, the Company

                                      -16-

shall reimburse the International Managers for all of their out-of-pocket
expenses, including the reasonable fees and disbursements of counsel for the
International Managers.

      SECTION 5. CONDITIONS OF INTERNATIONAL MANAGERS' OBLIGATIONS. The
obligations of the International Managers to purchase and pay for the
International Securities pursuant to the International Terms Agreement are
subject to the accuracy of the representations and warranties of the Company
contained in Section 1 hereof or in certificates of any officer of the Company
or any Subsidiary delivered pursuant to the provisions hereof, to the
performance by the Company of its covenants and other obligations hereunder, and
to the following further conditions:

            (a) EFFECTIVENESS OF REGISTRATION STATEMENT. The Registration
      Statement has become effective under the 1933 Act and no stop order
      suspending the effectiveness of the Registration Statement shall have been
      issued under the 1933 Act or proceedings therefor initiated or threatened
      by the Commission, and any request on the part of the Commission for
      additional information shall have been complied with to the reasonable
      satisfaction of counsel to the International Managers. A prospectus
      containing the Rule 430A Information shall have been filed with the
      Commission in accordance with Rule 424(b) (or any required post-effective
      amendment providing such information shall have been filed and declared
      effective in accordance with the requirements of Rule 430A) or, if the
      Company has elected to rely upon Rule 434 of the 1933 Act Regulations, a
      Term Sheet shall have been filed with the Commission in accordance with
      Rule 424(b).

            (b) OPINION OF COUNSEL FOR COMPANY. At Closing Time, the Lead
      Managers shall have received the favorable opinion, dated as of Closing
      Time, of Baker & Botts, L.L.P., counsel for the Company, in form and
      substance satisfactory to counsel for the International Managers, together
      with signed or reproduced copies of such letter for each of the other
      International Managers to the effect set forth in Exhibit A hereto. In
      giving such opinion such counsel may rely, as to all matters governed by
      the laws of jurisdictions other than the law of the State of New York, the
      federal law of the United States and the General Corporation Law of the
      State of Delaware, upon the opinions of counsel satisfactory to the Lead
      Managers. Such counsel may also state that, insofar as such opinion
      involves factual matters, they have relied, to the extent they deem
      proper, upon certificates of officers of the Company and its Subsidiaries
      and certificates of public officials.

            (c) OPINION OF COUNSEL FOR INTERNATIONAL MANAGERS. At Closing Time,
      the Lead Managers shall have received the favorable opinion, dated as of
      Closing Time, of Andrews & Kurth L.L.P., counsel for the International
      Managers, together with signed or reproduced copies of such letter for
      each of the other International Managers with respect to the matters set
      forth in paragraphs (1), (6), (7), (8) (solely as to the information in
      the International Prospectus under "Description of Capital Stock" or to
      any other caption purporting to describe any such International
      Securities), (14) and (15) and the penultimate paragraph of Exhibit A
      hereto. In giving such opinion such counsel may rely, as to all matters
      governed by the laws of jurisdictions other than the law of the State of
      New York, the federal law of

                                      -17-

      the United States and the General Corporation Law of the State of
      Delaware, upon the opinions of counsel satisfactory to the Lead Managers.
      Such counsel may also state that, insofar as such opinion involves factual
      matters, they have relied, to the extent they deem proper, upon
      certificates of officers of the Company and its Subsidiaries and
      certificates of public officials.

            (d) OFFICERS' CERTIFICATE. At Closing Time, there shall not have
      been, since the date of the Terms Agreement or since the respective dates
      as of which information is given in the Prospectuses, any material adverse
      change in the condition, financial or otherwise, or in the earnings,
      business affairs or business prospects of the Company and the Subsidiaries
      considered as one enterprise, whether or not arising in the ordinary
      course of business, and the Lead Managers shall have received a
      certificate of the Company executed by the President or a Vice President
      of the Company and of the chief financial or chief accounting officer of
      the Company, dated as of Closing Time, to the effect that (i) there has
      been no such material adverse change, (ii) the representations and
      warranties in Section 1 hereof are true and correct with the same force
      and effect as though expressly made at and as of Closing Time, (iii) the
      Company has complied with all agreements and satisfied all conditions on
      its part to be performed or satisfied at or prior to Closing Time, (iv)
      there are no material subsidiaries other than those set forth on Schedule
      I hereto, and (v) no stop order suspending the effectiveness of the
      Registration Statement has been issued and no proceedings for that purpose
      have been initiated or, to the Company's knowledge, threatened by the
      Commission.

            (e) ACCOUNTANTS' COMFORT LETTERS. At the time of the execution of
      the Terms Agreements, the Lead Managers shall have received (i) from
      Deloitte & Touche LLP a letter dated such date, in form and substance
      satisfactory to the Lead Managers, together with signed or reproduced
      copies of such letter for each of the International Managers, containing
      statements and information of the type ordinarily included in accountants'
      "comfort letters" to underwriters with respect to the financial statements
      and certain financial information of the Company and its Subsidiaries
      contained, or incorporated by reference, in the Registration Statement and
      the Prospectuses and (ii) from Arthur Andersen LLP a letter dated such
      date, in form and substance satisfactory to the Lead Managers, together
      with signed or reproduced copies of such letter for each of the other
      International Managers, containing statements and information of the type
      ordinarily included in accountants' "comfort letters" to underwriters with
      respect to the financial statements and financial information of Transok,
      Inc. contained, or incorporated by reference, in the Registration
      Statement and the Prospectuses.

            (f) BRING-DOWN COMFORT LETTER. At Closing Time, the Lead Managers
      shall have received from each of Deloitte & Touche LLP and Arthur Andersen
      LLP a letter, dated as of Closing Time, to the effect that they reaffirm
      the statements made in the letter furnished pursuant to subsection (e) of
      this Section 5, except that the specified date referred to shall be a date
      not more than three business days prior to the Closing Time.

                                      -18-

            (g) APPROVAL OF LISTING. At Closing Time, the Securities shall have
      been approved for listing on the New York Stock Exchange, subject only to
      official notice of issuance.

            (h) LOCK-UP AGREEMENTS. At the date of the Terms Agreement, the Lead
      Managers shall have received, in form and substance satisfactory to them,
      each lock-up agreement, if any, specified in the Terms Agreement as being
      required to be delivered by the persons listed therein.

            (i) PURCHASE OF INITIAL U.S. SECURITIES. Contemporaneously with the
      purchase by the International Managers of the Initial International
      Securities under this Agreement, the U.S. Underwriters shall have
      purchased the Initial U.S. Securities under the U.S. Purchase Agreement.

            (j) CONDITIONS TO PURCHASE OF INTERNATIONAL OPTION SECURITIES. If
      the International Managers exercise their option provided in Section 2(b)
      hereof to purchase all or any portion of the International Option
      Securities, the representations and warranties of the Company contained
      herein and the statements in any certificates furnished by the Company
      hereunder shall be true and correct as of each Date of Delivery and, at
      the relevant Date of Delivery, the Lead Managers shall have received:

                  (1) OFFICERS' CERTIFICATE. A certificate, dated such Date of
            Delivery, of the Company executed by the President or a Vice
            President of the Company and of the chief financial or chief
            accounting officer of the Company, confirming that the certificate
            delivered at the Closing Time pursuant to Section 5(d) hereof
            remains true and correct as of such Date of Delivery.

                  (2) OPINION OF COUNSEL FOR COMPANY. The favorable opinion of
            Baker & Botts, L.L.P., counsel for the Company, in form and
            substance satisfactory to counsel for the International Managers,
            dated such Date of Delivery, relating to the International Option
            Securities to be purchased on such Date of Delivery and otherwise to
            the same effect as the opinion required by Section 5(b) hereof.

                  (3) OPINION OF COUNSEL FOR INTERNATIONAL MANAGERS. The
            favorable opinion of Andrews & Kurth L.L.P., counsel for the
            International Managers, dated such Date of Delivery, relating to the
            International Option Securities and otherwise to the same effect as
            the opinion required by Section 5(c) hereof.

                  (4) BRING-DOWN COMFORT LETTER. A letter from each of Deloitte
            & Touche LLP and Arthur Andersen LLP, in form and substance
            satisfactory to the Lead Managers and dated such Date of Delivery,
            substantially in the same form and substance as the letter furnished
            to the Lead Managers pursuant to Section 5(f)

                                      -19-

            hereof, except that the "specified date" in the letter furnished
            pursuant to this paragraph shall be a date not more than five days
            prior to such Date of Delivery.

            (k) ADDITIONAL DOCUMENTS. At Closing Time and at each Date of
      Delivery counsel for the International Managers shall have been furnished
      with such documents as they may reasonably require for the purpose of
      enabling them to pass upon the issuance and sale of the International
      Securities as herein contemplated, or in order to evidence the accuracy of
      any of the representations or warranties, or the fulfillment of any of the
      conditions, herein contained; and all proceedings taken by the Company in
      connection with the issuance and sale of the International Securities as
      herein contemplated shall be satisfactory in form and substance to the
      Lead Managers and counsel for the International Managers.

            (l) TERMINATION OF TERMS AGREEMENT. If any condition specified in
      this Section 5 shall not have been fulfilled when and as required to be
      fulfilled, the International Terms Agreement (or, with respect to the
      International Managers' exercise of the over-allotment option for the
      purchase of International Option Securities on a Date of Delivery after
      the Closing Time, the obligations of the International Managers to
      purchase the International Option Securities may be terminated by the Lead
      Managers by notice to the Company at any time at or prior to Closing Time
      or such Date of Delivery, as applicable), and such termination shall be
      without liability of any party to any other party except as provided in
      Section 4 and except that Sections 1, 6 and 7 shall survive any such
      termination and remain in full force and effect.

      SECTION 6.   INDEMNIFICATION.

      (a) INDEMNIFICATION OF INTERNATIONAL MANAGERS. The Company agrees to
indemnify and hold harmless each International Manager and each person, if any,
who controls any International Manager within the meaning of Section 15 of the
1933 Act or Section 20 of the 1934 Act as follows:

            (1) against any and all loss, liability, claim, damage and expense
      whatsoever, as incurred, arising out of any untrue statement or alleged
      untrue statement of a material fact contained in the Registration
      Statement (or any amendment thereto), including the Rule 430A Information
      and the Rule 434 Information deemed to be a part thereof, if applicable,
      or the omission or alleged omission therefrom of a material fact required
      to be stated therein or necessary to make the statements therein not
      misleading or arising out of any untrue statement or alleged untrue
      statement of a material fact included in any preliminary prospectus or the
      Prospectuses (or any amendment or supplement thereto), or the omission or
      alleged omission therefrom of a material fact necessary in order to make
      the statements therein, in the light of the circumstances under which they
      were made, not misleading;

                                      -20-

            (2) against any and all loss, liability, claim, damage and expense
      whatsoever, as incurred, to the extent of the aggregate amount paid in
      settlement of any litigation, or any investigation or proceeding by any
      governmental agency or body, commenced or threatened, or of any claim
      whatsoever based upon any such untrue statement or omission, or any such
      alleged untrue statement or omission; provided that (subject to Section
      6(d) below) any such settlement is effected with the written consent of
      the Company; and

            (3) against any and all expense whatsoever, as incurred (including
      the fees and disbursements of counsel chosen by the Lead Managers),
      reasonably incurred in investigating, preparing or defending against any
      litigation, or any investigation or proceeding by any governmental agency
      or body, commenced or threatened, or any claim whatsoever based upon any
      such untrue statement or omission, or any such alleged untrue statement or
      omission, to the extent that any such expense is not paid under (i) or
      (ii) above;

PROVIDED, HOWEVER, that this indemnity agreement shall not apply to any loss,
liability, claim, damage or expense to the extent arising out of any untrue
statement or omission or alleged untrue statement or omission made in reliance
upon and in conformity with written information furnished to the Company by any
International Manager through the Lead Managers expressly for use in the
Registration Statement (or any amendment thereto), including the Rule 430A
Information and the Rule 434 Information, if applicable, or any preliminary
prospectus or the Prospectuses (or any amendment or supplement thereto); and
PROVIDED, FURTHER, that this indemnity agreement with respect to any preliminary
prospectus shall not inure to the benefit of any International Manager from whom
the person asserting any losses, liabilities, claims, damages or expenses
purchased International Securities, or any person controlling such International
Manager, if a copy of the Prospectuses (as then amended or supplemented if the
Company shall have furnished any such amendments or supplements thereto, but
excluding documents incorporated or deemed to be incorporated by reference
therein) was not sent or given by or on behalf of such International Manager to
such person if such is required by law at or prior to the written confirmation
of the sale of such International Securities to such person and if the
Prospectuses (as so amended or supplemented, but excluding documents
incorporated or deemed to be incorporated by reference therein) would have
corrected the defect giving rise to such loss, liability, claim, damage or
expense, it being understood that this proviso shall have no application if such
defect shall have been corrected in a document which is incorporated or deemed
to be incorporated by reference in the Prospectuses.

      (b) INDEMNIFICATION OF COMPANY, DIRECTORS AND OFFICERS. Each International
Manager severally agrees to indemnify and hold harmless the Company, its
directors, each of its officers who signed the Registration Statement, and each
person, if any, who controls the Company within the meaning of Section 15 of the
1933 Act or Section 20 of the 1934 Act against any and all loss, liability,
claim, damage and expense described in the indemnity contained in subsection (a)
of this Section, as incurred, but only with respect to untrue statements or
omissions, or alleged untrue statements or omissions, made in the Registration
Statement (or any amendment thereto), including the Rule 430A Information and
the Rule 434 Information, if applicable, or any preliminary prospectus or the
International Prospectus (or any amendment or supplement thereto) in reliance

                                      -21-

upon and in conformity with written information furnished to the Company by such
International Manager through the Lead Managers expressly for use in the
Registration Statement (or any amendment thereto) or such preliminary prospectus
or the Prospectuses (or any amendment or supplement thereto).

      (c) ACTIONS AGAINST PARTIES; NOTIFICATION. Each indemnified party shall
give notice as promptly as reasonably practicable to each indemnifying party of
any action commenced against it in respect of which indemnity may be sought
hereunder, but failure to so notify an indemnifying party shall not relieve such
indemnifying party from any liability hereunder to the extent it is not
materially prejudiced as a result thereof and in any event shall not relieve it
from any liability which it may have otherwise than on account of this indemnity
agreement. In the case of parties indemnified pursuant to Section 6(a) above,
counsel to the indemnified parties shall be selected by the Lead Managers, and,
in the case of parties indemnified pursuant to Section 6(b) above, counsel to
the indemnified parties shall be selected by the Company. An indemnifying party
may participate at its own expense in the defense of any such action; PROVIDED,
HOWEVER, that counsel to the indemnifying party shall not (except with the
consent of the indemnified party) also be counsel to the indemnified party. In
no event shall the indemnifying parties be liable for fees and expenses of more
than one counsel (in addition to any local counsel) separate from their own
counsel for all indemnified parties in connection with any one action or
separate but similar or related actions in the same jurisdiction arising out of
the same general allegations or circumstances. No indemnifying party shall,
without the prior written consent of the indemnified parties, settle or
compromise or consent to the entry of any judgment with respect to any
litigation, or any investigation or proceeding by any governmental agency or
body, commenced or threatened, or any claim whatsoever in respect of which
indemnification or contribution could be sought under this Section 6 or Section
7 hereof (whether or not the indemnified parties are actual or potential parties
thereto), unless such settlement, compromise or consent (i) includes an
unconditional release of each indemnified party from all liability arising out
of such litigation, investigation, proceeding or claim and (ii) does not include
a statement as to or an admission of fault, culpability or a failure to act by
or on behalf of any indemnified party.

      (d) SETTLEMENT WITHOUT CONSENT IF FAILURE TO REIMBURSE. If at any time an
indemnified party shall have requested an indemnifying party to reimburse the
indemnified party for fees and expenses of counsel, such indemnifying party
agrees that it shall be liable for any settlement of the nature contemplated by
Sections 6(a)(2) or 6(b) effected without its written consent if (i) such
settlement is entered into more than 45 days after receipt by such indemnifying
party of the aforesaid request, (ii) such indemnifying party shall have received
notice of the terms of such settlement at least 30 days prior to such settlement
being entered into and (iii) such indemnifying party shall not have reimbursed
such indemnified party for such fees and expenses of counsel in accordance with
such request prior to the date of such settlement.

      SECTION 7. CONTRIBUTION. If the indemnification provided for in Section 6
hereof is for any reason unavailable to or insufficient to hold harmless an
indemnified party in respect of any losses, liabilities, claims, damages or
expenses referred to therein, then each indemnifying party shall

                                      -22-

contribute to the aggregate amount of such losses, liabilities, claims, damages
and expenses incurred by such indemnified party, as incurred, (i) in such
proportion as is appropriate to reflect the relative benefits received by the
Company on the one hand and the International Managers on the other hand from
the offering of the Securities pursuant to the Terms Agreement or (ii) if the
allocation provided by clause (i) is not permitted by applicable law, in such
proportion as is appropriate to reflect not only the relative benefits referred
to in clause (i) above but also the relative fault of the Company on the one
hand and of the International Managers on the other hand in connection with the
statements or omissions which resulted in such losses, liabilities, claims,
damages or expenses, as well as any other relevant equitable considerations.

      The relative benefits received by the Company on the one hand and the
International Managers on the other hand in connection with the offering of the
International Securities pursuant to the International Terms Agreement shall be
deemed to be in the same respective proportions as the total net proceeds from
the offering of the International Securities (before deducting expenses)
received by the Company and the total underwriting discount received by the
International Managers, in each case as set forth on the cover of the
International Prospectus, or, if Rule 434 is used, the corresponding location on
the Term Sheet bear to the aggregate initial public offering price of the
International Securities as set forth on such cover.

      The relative fault of the Company on the one hand and the International
Managers on the other hand shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of a material fact or the
omission or alleged omission to state a material fact relates to information
supplied by the Company or by the International Managers and the parties'
relative intent, knowledge, access to information and opportunity to correct or
prevent such statement or omission.

      The Company and the International Managers agree that it would not be just
and equitable if contribution pursuant to this Section 7 were determined by pro
rata allocation (even if the International Managers were treated as one entity
for such purpose) or by any other method of allocation which does not take
account of the equitable considerations referred to above in this Section 7. The
aggregate amount of losses, liabilities, claims, damages and expenses incurred
by an indemnified party and referred to above in this Section 7 shall be deemed
to include any legal or other expenses reasonably incurred by such indemnified
party in investigating, preparing or defending against any litigation, or any
investigation or proceeding by any governmental agency or body, commenced or
threatened, or any claim whatsoever based upon any such untrue or alleged untrue
statement or omission or alleged omission.

      Notwithstanding the provisions of this Section 7, no International Manager
shall be required to contribute any amount in excess of the amount by which the
total price at which the International Securities underwritten by it and
distributed to the public were offered to the public exceeds the amount of any
damages which such International Managers has otherwise been required to pay by
reason of any such untrue or alleged untrue statement or omission or alleged
omission.

                                      -23-

      No person guilty of fraudulent misrepresentation (within the meaning of
Section 11(f) of the 1933 Act) shall be entitled to contribution from any person
who was not guilty of such fraudulent misrepresentation.

      For purposes of this Section 7, each person, if any, who controls an
International Managers within the meaning of Section 15 of the 1933 Act or
Section 20 of the 1934 Act shall have the same rights to contribution as such
International Manager, and each director of the Company, each officer of the
Company who signed the Registration Statement, and each person, if any, who
controls the Company within the meaning of Section 15 of the 1933 Act or Section
20 of the 1934 Act shall have the same rights to contribution as the Company.
The International Managers' respective obligations to contribute pursuant to
this Section 7 are several in proportion to the number of Initial International
Securities set forth opposite their respective names on the Terms Agreement and
not joint.

      SECTION 8. REPRESENTATIONS, WARRANTIES AND AGREEMENTS TO SURVIVE DELIVERY.
All representations, warranties and agreements contained in this Agreement or
the International Terms Agreement or in certificates of officers of the Company
submitted pursuant hereto, shall remain operative and in full force and effect,
regardless of any investigation made by or on behalf of any International
Manager or controlling person, or by or on behalf of the Company, and shall
survive delivery of and payment for the International Securities.

      SECTION 9.   TERMINATION.

      (a) PURCHASE AGREEMENT. This Agreement (excluding the Terms Agreement) may
be terminated for any reason at any time by the Company or by the Lead Managers
upon giving 30 days' prior written notice of such termination to the other party
or as otherwise provided for herein.

      (b) TERMS AGREEMENT. The Lead Managers may terminate the International
Terms Agreement, by notice to the Company, at any time at or prior to Closing
Time or any relevant Date of Delivery if (i) there has been, since the time of
execution of the Terms Agreement or since the respective dates as of which
information is given in the International Prospectus, any material adverse
change in the condition, financial or otherwise, or in the earnings, business
affairs or business prospects of the Company and the Subsidiaries considered as
one enterprise, whether or not arising in the ordinary course of business, or
(ii) there has occurred any material adverse change in the financial markets in
the United States or in the international financial markets, any outbreak of
hostilities or escalation thereof or other calamity or crisis or any change or
development involving a prospective change in national or international
political, financial or economic conditions, in each case the effect of which is
such as to make it, in the judgment of the Lead Managers, impracticable to
market the Securities or to enforce contracts for the sale of the Securities, or
(iii) trading in any securities of the Company has been suspended or limited by
the Commission or the New York Stock Exchange, Inc. or if trading generally on
the New York Stock Exchange or American Stock Exchange or in the
over-the-counter market has been suspended or limited, or minimum or maximum
prices for trading have been fixed, or maximum ranges for prices have been
required, by any of said exchanges or by such system or by order of the
Commission, the National Association

                                      -24-

of Securities Dealers, Inc. or any other governmental authority, or (iv) if a
banking moratorium has been declared by either Federal or New York authorities.

      (c) LIABILITIES. If this Agreement or the International Terms Agreement is
terminated pursuant to this Section 9, such termination shall be without
liability of any party to any other party except as provided in Section 4
hereof, and provided further that Sections 1, 6 and 7 shall survive such
termination and remain in full force and effect.

      SECTION 10. DEFAULT BY ONE OR MORE OF THE INTERNATIONAL MANAGERS. If one
or more of the International Managers shall fail at the Closing Time or the
relevant Date of Delivery, as the case may be, to purchase the Securities which
it or they are obligated to purchase under the applicable Terms Agreement (the
"Defaulted Securities"), the Lead Managers shall have the right, within 24 hours
thereafter, to make arrangements for one or more of the non-defaulting
International Managers, or any other underwriters, to purchase all, but not less
than all, of the Defaulted Securities in such amounts as may be agreed upon and
upon the terms herein set forth; if, however, the Lead Manager(s) shall not have
completed such arrangements within such 24-hour period, then:

            (a) if the number or aggregate principal amount, as the case may be,
      of Defaulted Securities does not exceed 10% of the number of International
      Securities to be purchased on such date pursuant to such International
      Terms Agreement, each of the non-defaulting International Managers shall
      be obligated, severally and not jointly, to purchase the full amount
      thereof in the proportions that their respective underwriting obligations
      under such Terms Agreement bear to the underwriting obligations of all
      non-defaulting International Managers, or

            (b) if the number or aggregate principal amount, as the case may be,
      of Defaulted Securities exceeds 10% of the number of Securities to be
      purchased on such date pursuant to such International Terms Agreement,
      this Agreement (or, with respect to the International Managers' exercise
      of an over-allotment option for the purchase of International Option
      Securities on a Date of Delivery after the Closing Time, the obligations
      of the International Managers to purchase, and the Company to sell, such
      International Option Securities on such Date of Delivery) shall terminate
      without liability on the part of any non-defaulting International Manager.

      No action taken pursuant to this Section 10 shall relieve any defaulting
International Manager from liability in respect of its default.

      In the event of any such default which does not result in (i) a
termination of the Terms Agreement or, (ii) in the case of a Date of Delivery
after the Closing Time, a termination of the obligations of the International
Managers to purchase and the Company to sell the relevant International Option
Securities, as the case may be, either the Lead Managers or the Company shall
have the right to postpone the Closing Time or the relevant Date of Delivery, as
the case may be, for a period not exceeding seven days in order to effect any
required changes in the Registration

                                      -25-

Statement or the Prospectuses or in any other documents or arrangements. As used
herein, the term "International Manager" includes any person substituted for an
International Manager under this Section 10.

      SECTION 11. NOTICES. All notices and other communications hereunder shall
be in writing and shall be deemed to have been duly given if mailed or
transmitted by any standard form of telecommunication. Notices to the
International Managers shall be directed to Merrill Lynch at North Tower, World
Financial Center, New York, New York 10281-1201, attention of Wood Steinberg,
Vice President; and notices to the Company shall be directed to it at 1301
McKinney Street, Suite 700, Houston, Texas 77010, attention of James W. Whalen,
Executive Vice President, Chief Financial Officer and Treasurer.

      SECTION 12. PARTIES. This Agreement and the International Terms Agreement
shall each inure to the benefit of and be binding upon the Company, the Lead
Managers and, upon execution of the International Terms Agreement, any other
International Underwriters and their respective successors. Nothing expressed or
mentioned in this Agreement or the International Terms Agreement is intended or
shall be construed to give any person, firm or corporation, other than the
International Managers and the Company and their respective successors and the
controlling persons and officers and directors referred to in Sections 6 and 7
and their heirs and legal representatives, any legal or equitable right, remedy
or claim under or in respect of this Agreement or any provision herein
contained. This Agreement and all conditions and provisions hereof are intended
to be for the sole and exclusive benefit of the International Managers and the
Company and their respective successors, and said controlling persons and
officers and directors and their heirs and legal representatives, and for the
benefit of no other person, firm or corporation. No purchaser of Securities from
any International Manager shall be deemed to be a successor by reason merely of
such purchase.

      SECTION 13. GOVERNING LAW AND TIME. THIS AGREEMENT SHALL BE GOVERNED BY
AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. EXCEPT AS
OTHERWISE SET FORTH HEREIN, SPECIFIED TIMES OF DAY REFER TO NEW YORK CITY TIME.

      SECTION 14. EFFECT OF HEADINGS. The Article and Section headings herein
and any table of contents are for convenience only and shall not affect the
construction hereof.

                                      -26-

      If the foregoing is in accordance with your understanding of our
agreement, please sign and return to the Company a counterpart hereof, whereupon
this Agreement, along with all counterparts, will become a binding agreement
between the International Managers and the Company in accordance with its terms.

                                         Very truly yours,

                                         TEJAS GAS CORPORATION

                                         By:____________________________
                                         Name:__________________________
                                         Title:_________________________

CONFIRMED AND ACCEPTED, 
as of the date first above written:

MERRILL LYNCH INTERNATIONAL
CAZENOVE & CO.
NATWEST SECURITIES LIMITED

By:   MERRILL LYNCH INTERNATIONAL

By_______________________________
       Authorized Signatory

For themselves and as Lead Managers and as the only
International Managers named in the International Terms
Agreement.

                                      -27-


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