WEATHERFORD ENTERRA INC
8-K, 1996-05-31
EQUIPMENT RENTAL & LEASING, NEC
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                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                                      
                                      
                                   FORM 8-K
                                      
                                CURRENT REPORT
                                      
    PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934
                                      
                                      
                        DATE OF REPORT:  MAY 28, 1996
                      (DATE OF EARLIEST EVENT REPORTED)
                                      
                                      
                          WEATHERFORD ENTERRA, INC.
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)


          DELAWARE                      1-7867                    74-1681642
(STATE OR OTHER JURISDICTION    (COMMISSION FILE NUMBER)       (I.R.S. EMPLOYER 
     OF INCORPORATION)                                       IDENTIFICATION NO.)
    



          1360 POST OAK BOULEVARD, SUITE 1000
                    HOUSTON, TEXAS                              77056-3098
       (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                 (ZIP CODE)





      REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (713) 439-9400
                                      
                                      
                               (NOT APPLICABLE)
        -------------------------------------------------------------
        (FORMER NAME OR FORMER ADDRESS, IF CHANGED SINCE LAST REPORT)



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




<PAGE>   2
ITEM 5.  OTHER EVENTS

         On May 28, 1996, Weatherford Enterra, Inc. (the "Company") completed
the sale of $200,000,000 aggregate amount of the Company's 7 1/4% Notes Due May
15, 2006 (the "Notes"), in conjunction with a shelf Registration Statement on
Form S-3 (Registration No. 333-02281) covering $300,000,000 aggregate amount of
the Company's debt securities.  The Notes were issued under an Indenture dated
May 17, 1996 (the "Indenture"), between the Company and Bank of Montreal Trust
Company, as Trustee.  The Notes were offered and sold pursuant to a Terms
Agreement dated May 22, 1996 (the "Terms Agreement"), among the Company,
Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated, BA
Securities, Inc. and Chase Securities Inc., which incorporates the terms of an
Underwriting Agreement dated May 22, 1996 (the "Underwriting Agreement"), among
the Company, Merrill Lynch & Co. and Merrill Lynch, Pierce, Fenner & Smith
Incorporated.

         The Underwriting Agreement is attached hereto as Exhibit 1.1 and is
incorporated by reference herein.  The Terms Agreement is attached hereto as
Exhibit 1.2 and is incorporated by reference herein.  The Indenture is attached
hereto as Exhibit 4.1 and is incorporated by reference herein.  The form of the
Notes is attached hereto as Exhibit 4.2 and is incorporated by reference
herein.



ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS

         (c)  Exhibits.

 1.1               Underwriting Agreement dated May 22, 1996, among the
                   Company, Merrill Lynch & Co. and Merrill Lynch, Pierce,
                   Fenner & Smith Incorporated.

 1.2               Terms Agreement dated May 22, 1996, among the Company,
                   Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith
                   Incorporated, BA Securities, Inc. and Chase Securities Inc.

 4.1               Indenture dated May 17, 1996, between the Company and Bank
                   of Montreal Trust Company, as Trustee.

 4.2               Form of the Company's 7 1/4% Notes Due May 15, 2006.





<PAGE>   3
                                   SIGNATURES

         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.

                                           WEATHERFORD ENTERRA, INC.



Dated: May 30, 1996                                /s/  H. SUZANNE THOMAS
                                           -------------------------------------
                                                        H. Suzanne Thomas
                                                Senior Vice President, Secretary
                                                       and General Counsel





<PAGE>   4
                                 EXHIBIT INDEX

 1.1               Underwriting Agreement dated May 22, 1996, among the
                   Company, Merrill Lynch & Co. and Merrill Lynch, Pierce,
                   Fenner & Smith Incorporated.

 1.2               Terms Agreement dated May 22, 1996, among the Company,
                   Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith
                   Incorporated, BA Securities, Inc. and Chase Securities Inc.

 4.1               Indenture dated May 17, 1996, between the Company and Bank
                   of Montreal Trust Company, as Trustee.

 4.2               Form of the Company's 7 1/4% Notes Due May 15, 2006.






<PAGE>   1


                                                                     EXHIBIT 1.1

                           WEATHERFORD ENTERRA, INC.
                            (a Delaware corporation)


                                Debt Securities


                             UNDERWRITING AGREEMENT

                                                                    May 22, 1996

MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith
            Incorporated
North Tower
World Financial Center
New York, New York 10281-1209

Ladies and Gentlemen:

         Weatherford Enterra, Inc., a Delaware corporation (the "Company"),
proposes to issue and sell up to $300 million in aggregate principal amount of
its unsecured debt securities (the "Debt Securities"), from time to time, in or
pursuant to one or more offerings on terms to be determined at the time of
sale.

         The Debt Securities will be issued in one or more series under an
indenture, dated as of May 17, 1996 (the "Indenture"), between the Company and
Bank of Montreal Trust Company, as trustee (the "Trustee").  Each series of
Debt Securities may vary, as applicable, as to title, aggregate principal
amount, rank, interest rate or formula and timing of payments thereof, stated
maturity date, redemption and/or repayment provisions, sinking fund
requirements and any other variable terms established by or pursuant to the
Indenture.

         Whenever the Company determines to make an offering of Debt Securities
through Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated
("Merrill Lynch"), or through an underwriting syndicate managed by Merrill
Lynch, the Company will enter into an agreement (the "Terms Agreement")
providing for the sale of such Debt Securities to, and the purchase and
offering thereof by, Merrill Lynch and such other underwriters, if any,
selected by Merrill Lynch (the "Underwriters", which term shall include Merrill
Lynch, whether acting as sole Underwriter or as a member of an underwriting
syndicate, as well as any Underwriter substituted pursuant to Section 10
hereof).  The Terms Agreement relating to each offering of Debt Securities
shall specify the aggregate principal amount of Debt Securities to be issued
(the "Underwritten Securities"), the name of each Underwriter participating in
such offering (subject to substitution as provided in Section 10 hereof) and
the name of any Underwriter other than Merrill Lynch acting as co-manager in
connection with such offering, the aggregate principal amount of Underwritten
Securities which each such Underwriter severally agrees to purchase, whether
such offering is on a fixed or variable
<PAGE>   2
price basis and, if on a fixed price basis, the initial offering price, the
price at which the Underwritten Securities are to be purchased by the
Underwriters, the form, time, date and place of delivery of and payment for the
Underwritten Securities and any other material variable terms of the
Underwritten Securities.  The Terms Agreement, a form of which is attached as
Exhibit A, shall be in form and substance satisfactory to Merrill Lynch, and
may take the form of an exchange of any standard form of written
telecommunication between the Company and Merrill Lynch, acting for itself and,
if applicable, as representative of any other Underwriters.  Each offering of
Underwritten Securities through Merrill Lynch as sole Underwriter or through an
underwriting syndicate managed by Merrill Lynch will be governed by this
Underwriting Agreement, as supplemented by the applicable Terms Agreement.

         The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement on Form S-3 (No. 333-02281) and
pre-effective amendment no. 1 thereto for the registration of the Debt
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 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 applicable Terms Agreement.
Such registration statement (as so amended, if applicable) has been declared
effective by the Commission and the Indenture has been duly qualified under the
Trust Indenture Act of 1939, as amended (the "1939 Act").  Such registration
statement (as so amended, if applicable), including the information, if any,
deemed to be a part thereof pursuant to Rule 430A(b) of the 1933 Act
Regulations (the "Rule 430A Information") or Rule 434(d) of the 1933 Act
Regulations (the "Rule 434 Information"), is referred to herein as the
"Registration Statement"; and the final prospectus and the prospectus
supplement relating to the offering of the Underwritten Securities, in the form
first furnished to the Underwriters by the Company for use in connection with
the applicable offering of the Underwritten Securities, are collectively
referred to herein as the "Prospectus"; provided, however, that all references
to the "Registration Statement" and the "Prospectus" shall be deemed to include
all documents incorporated therein by reference pursuant to the Securities
Exchange Act of 1934, as amended (the "1934 Act"), prior to the execution of
the applicable Terms Agreement; provided, further, that if the Company files a
registration statement with the Commission pursuant to Section 462(b) of the
1933 Act Regulations (the "Rule 462 Registration Statement"), then, after such
filing, all references to "Registration Statement" shall be deemed to include
the Rule 462 Registration Statement; and provided, further, that if the Company
elects to rely upon Rule 434 of the 1933 Act Regulations, then all references
to "Prospectus" shall be deemed to include the final or preliminary prospectus
and the applicable term sheet or abbreviated term sheet (the "Term Sheet"), as
the case may be, in the form first furnished to the Underwriters by the Company
in reliance upon Rule 434 of the 1933 Act Regulations, and all references in
this Underwriting Agreement to the date of the Prospectus shall mean the date
of the Term Sheet.  A "preliminary prospectus" shall be deemed to refer to any
prospectus used before the registration statement became effective and any
prospectus that omitted, as applicable, the Rule 430A Information, the Rule 434
Information or other information to be included upon pricing in a form of
prospectus filed with the Commission pursuant to Rule 424(b) of the 1933 Act
Regulations, that was used after such effectiveness and prior to the execution
and delivery of the applicable Terms Agreement.  For purposes of this
Underwriting Agreement, all references to the Registration Statement,
Prospectus, Term Sheet or preliminary prospectus or to any amendment or
supplement to any of the foregoing shall be deemed to include the copy




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<PAGE>   3
filed with the Commission pursuant to its Electronic Data Gathering, Analysis
and Retrieval system ("EDGAR").

         All references in this Underwriting Agreement to financial statements
and schedules and other information which are "contained," "included" or
"stated" (or other references of like import) in the Registration Statement,
Prospectus or preliminary prospectus shall be deemed to mean and include all
such financial statements and schedules and other information which are
incorporated by reference in the Registration Statement, Prospectus or
preliminary prospectus, as the case may be; and all references in this
Underwriting Agreement to amendments or supplements to the Registration
Statement, Prospectus or preliminary prospectus shall be deemed to mean and
include the filing of any document under the 1934 Act which is incorporated by
reference in the Registration Statement, Prospectus or preliminary prospectus,
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
Underwriter named in the applicable Terms Agreement, as of the date thereof, as
of the Closing Time (as defined below), as follows:

                 (1)      Compliance with Registration Requirements.  The
         Company meets the requirements for use of Form S-3 under the 1933 Act.
         Each of the Registration Statement and any Rule 462 Registration
         Statement has become effective under the 1933 Act and no stop order
         suspending the effectiveness of the Registration Statement or any Rule
         462 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. The Indenture has been duly
         qualified under the 1939 Act.

                 At the respective times the Registration Statement, any Rule
         462 Registration Statement and any post-effective amendments thereto
         became effective and at the Closing Time, the Registration Statement,
         any Rule 462 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 the 1939
         Act and the rules and regulations of the Commission under the 1939 Act
         (the "1939 Act Regulations") and the Registration Statement, any Rule
         462 Registration Statement and any post-effective amendments and
         supplements thereto (including the Company's most recent Annual Report
         on Form 10-K filed with the Commission) 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.  At the date of the Prospectus and at the
         Closing Time, the Prospectus and any amendments and supplements
         thereto did not and will not contain an untrue statement of a material
         fact or 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





                                      -3-
<PAGE>   4
         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 any
         post-effective amendments thereto or the Prospectus made in reliance
         upon and in conformity with information furnished to the Company in
         writing by any Underwriter expressly for use in the Registration
         Statement or any post-effective amendments thereto or the Prospectus.

                 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
         Regulations, complied when so filed in all material respects with the
         1933 Act Regulations and, if applicable, each preliminary prospectus
         and the Prospectus delivered to the Underwriters for use in connection
         with the offering of Underwritten Securities will, at the time of such
         delivery, be substantially 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 Prospectus, 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 Prospectus,
         at the date of the Prospectus and at the Closing Time, did not and
         will not contain an untrue statement of a material fact or 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.

                 (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 Prospectus,
         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.  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 Registration Statement
         and the Prospectus 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 Prospectus
         present fairly the information shown therein and have been compiled on
         a basis consistent with that of the audited financial statements
         included in the Registration Statement and the Prospectus.





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<PAGE>   5
                 (5)      No Material Adverse Change in Business.  Since the
         respective dates as of which information is given in the Registration
         Statement and the Prospectus, except as otherwise stated therein, (A)
         there has been no material adverse change in the condition, financial
         or otherwise, or in the earnings or business affairs of the Company
         and its subsidiaries considered as one enterprise (a "Material Adverse
         Effect"), whether or not arising in the ordinary course of business,
         and (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) 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 incorporated 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
         Underwriting Agreement and the applicable Terms Agreement.  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, is set forth on
         Schedule A hereto (each, a "Subsidiary" and, collectively, the
         "Subsidiaries").  Each Subsidiary, other than Weatherford Enterra
         U.S., Limited Partnership and Weatherford Enterra Compression Company,
         L.P., has been duly incorporated and is validly existing as a
         corporation in good standing under the laws of the jurisdiction of its
         incorporation, has corporate power and authority to own, lease and
         operate its properties and to conduct its business as described in the
         Prospectus and is duly qualified as a foreign corporation 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 or as set forth on Schedule
         A hereto, all of the issued and outstanding shares of  capital stock
         of, or, as applicable, limited partnership interests in, each
         Subsidiary have been duly authorized and are validly issued, fully
         paid and non-assessable and are owned by the Company, directly or
         through Subsidiaries, free and clear of any security interest,
         mortgage, pledge, lien, encumbrance, claim or equity.  None of the
         outstanding shares of capital stock of, or, as applicable, limited
         partnership interests in, any Subsidiary was issued in violation of
         preemptive or other similar rights arising by operation of law, under
         the charter or by-laws or, as applicable, limited partnership
         agreement of any Subsidiary or under any agreement to which the
         Company or any Subsidiary is a party, or otherwise.  Weatherford
         Enterra U.S., Limited Partnership and Weatherford Enterra Compression
         Company, L.P. are limited partnerships duly formed pursuant to the
         provisions of the





                                      -5-
<PAGE>   6
         Louisiana Partnership Act and the Delaware Revised Uniform Limited
         Partnership Act, respectively, and are validly existing as limited
         partnerships under the laws of such states and are duly qualified to
         transact business as foreign limited partnerships and are validly
         existing  in each other jurisdiction in which such qualification is
         required, except where the failure to so qualify or be in existence
         would not result in a Material Adverse Effect.

                 (8)      Authorization of this Underwriting Agreement and
         Terms Agreement.  This Underwriting Agreement has been, and the
         applicable Terms Agreement as of the date thereof will have been, duly
         authorized, executed and delivered by the Company.

                 (9)      Authorization of Debt Securities.  The Underwritten
         Securities have been, or as of the date of the applicable Terms
         Agreement will have been, duly authorized by the Company for issuance
         and sale pursuant to this Underwriting Agreement and such Terms
         Agreement. Such Underwritten Securities, when issued and authenticated
         in the manner provided for in the Indenture and delivered against
         payment of the consideration therefor specified in such Terms
         Agreement, will constitute valid and legally binding obligations of
         the Company, enforceable against the Company in accordance with their
         terms, except as the enforcement thereof may be limited by bankruptcy,
         insolvency, reorganization, moratorium or other similar laws relating
         to or affecting creditors' rights generally or by general equitable
         principles, and except further as enforcement thereof may be limited
         by (A) requirements that a claim with respect to any Debt Securities
         denominated other than in U.S.  dollars (or a foreign or composite
         currency judgment in respect of such claim) be converted into U.S.
         dollars at a rate of exchange prevailing on a date determined pursuant
         to applicable law or (B) governmental authority to limit, delay or
         prohibit the making of payments outside the United States.  Such
         Underwritten Securities will be substantially in the form contemplated
         by, and each registered holder thereof is entitled to the benefits of,
         the Indenture.

                 (10)     Authorization of the Indenture. The Indenture has
         been, or prior to the issuance of the Debt Securities thereunder will
         have been, duly authorized, executed and delivered by the Company and,
         upon such authorization, execution and delivery, will constitute a
         valid and legally binding agreement of the Company, enforceable
         against the Company in accordance with its terms, except as the
         enforcement thereof may be limited by bankruptcy, insolvency,
         reorganization, moratorium or other similar laws relating to or
         affecting creditors' rights generally or by general equitable
         principles, and except further as enforcement thereof may be limited
         by (A) requirements that a claim with respect to any Debt Securities
         denominated other than in U.S. dollars (or a foreign or composite
         currency judgment in respect of such claim) be converted into U.S.
         dollars at a rate of exchange prevailing on a date determined pursuant
         to applicable law or (B) governmental authority to limit, delay or
         prohibit the making of payments outside the United States.

                 (11)     Descriptions of the Underwritten Securities and
         Indenture.  The Underwritten Securities being sold pursuant to the
         applicable Terms Agreement and the Indenture, as of the date of the
         Prospectus, will conform in all material respects to the statements
         relating thereto contained in the Prospectus and will be in
         substantially the





                                      -6-
<PAGE>   7
         form filed or incorporated by reference, as the case may be, as an
         exhibit to the Registration Statement.

                 (12)     Absence of Defaults and Conflicts.  Neither the
         Company nor any of the Subsidiaries is in violation of its charter or
         by-laws, or, as applicable, limited partnership agreement, or in
         default in the performance or observance of any 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 of the
         Subsidiaries 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 that would not result in a Material Adverse
         Effect.  The execution, delivery and performance of this Underwriting
         Agreement, the applicable Terms Agreement and the Indenture and any
         other agreement or instrument entered into or to be entered into by
         the Company in connection with the transactions contemplated hereby or
         thereby and the consummation of the transactions contemplated herein
         or therein and in the Registration Statement and the Prospectus
         (including the issuance and sale of the Underwritten Securities and
         the use of the proceeds from the sale of the Underwritten Securities
         as described under the caption "Use of Proceeds") and compliance by
         the Company with its obligations hereunder and thereunder 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, or, as
         applicable, limited partnership agreement, 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 except
         where such violation would not result in a Material Adverse Effect.
         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.

                 (13)     Absence of Proceedings.  There is no action, suit or
         proceeding 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 thereof
         which is required to be disclosed in the Registration Statement and
         the Prospectus (other than as disclosed 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 Underwriting Agreement, the applicable Terms Agreement or the
         Indenture or the transactions contemplated herein or therein.  All
         pending legal or governmental proceedings to which the Company or any
         subsidiary thereof is a party or of which any





                                      -7-
<PAGE>   8
         of their respective assets, properties or operations is the subject
         which are not described in the Registration Statement and the
         Prospectus, including ordinary routine litigation incidental to the
         business, considered in the aggregate, 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 Prospectus or the documents incorporated by reference
         therein or to be filed as exhibits thereto which have not been so
         described or filed as required.

                 (15)     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 Underwriting Agreement,  the applicable
         Terms Agreement or the Indenture or in connection with the
         transactions contemplated under this Underwriting Agreement, such
         Terms Agreement or the Indenture, except as may be required under the
         1933 Act or the 1933 Act Regulations or under state securities laws.

                 (16)     Possession of Licenses and Permits.  The Company and
         the Subsidiaries 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 to possess such Governmental Licenses
         would not, singly or in the aggregate, result in a Material Adverse
         Effect.  The Company and the Subsidiaries 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 where 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 of the Subsidiaries has
         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.

                 (17)     Investment Company Act.  The Company is not, and upon
         the issuance and sale of the Underwritten Securities as herein
         contemplated and the application of the net proceeds therefrom as
         described in the Prospectus will not be, an "investment company"
         within the meaning of the Investment Company Act of 1940, as amended
         (the "1940 Act").

                 (18)     Compliance with Florida Statute.  The Company has
         complied with, or is exempt from, the provisions of Section 517.075 of
         the Florida statutes and the rules and regulations thereunder.

         (b)     Officers' Certificates.  Any certificate signed by any officer
of the Company or any Subsidiary and delivered to any Underwriter or to counsel
for the Underwriters in





                                      -8-
<PAGE>   9
connection with the offering of the Underwritten Securities shall be deemed a
representation and warranty by the Company to each Underwriter as to the
matters covered thereby on the date of such certificate and, unless
subsequently amended or supplemented, at the Closing Time.

         SECTION 2.       Sale and Delivery to Underwriters; Closing.

         (a)     Underwritten Securities.  The several commitments of the
Underwriters to purchase the Underwritten Securities pursuant to the applicable
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)     Payment.  Payment of the purchase price for, and delivery of,
any Underwritten Securities to be purchased by the Underwriters shall be made
at the place set forth in the applicable Terms Agreement, or at such other
place as shall be agreed upon by Merrill Lynch and the Company, at 9:00 A.M.
(Houston time) on the third (fourth, if the pricing occurs after 3:30 P.M.
(Houston time) on any given day) business day following the date of the
applicable Terms Agreement (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 Merrill Lynch and the Company (each
such time and date of payment and delivery being herein called "Closing Time").

         Payment shall be made to the Company by wire transfer of same day
funds into an account or accounts designated by the Company, or by certified or
official bank check or checks drawn in same day funds payable to the order of
the Company, against delivery to Merrill Lynch for the respective accounts of
the Underwriters of the Underwritten Securities to be purchased by them.  It is
understood that each Underwriter has authorized Merrill Lynch, for its account,
to accept delivery of, receipt for, and make payment of the purchase price for,
the Underwritten Securities which it has severally agreed to purchase.  Merrill
Lynch, individually and not as representative of the Underwriters, may (but
shall not be obligated to) make payment of the purchase price for the
Underwritten Securities to be purchased by any Underwriter whose check has not
been received by the Closing Time, but such payment shall not relieve such
Underwriter from its obligations hereunder.

         (c)     Denominations; Registration.  The Underwritten Securities
shall be in such denominations and registered in such names as Merrill Lynch
may request in writing at least two full business day prior to the Closing
Time.  The Underwritten Securities will be made available for examination and
packaging by Merrill Lynch in The City of New York not later than 10:00 A.M.
(Eastern time) on the business day prior to the Closing Time.

         SECTION 3.       Covenants of the Company.  The Company covenants and
agrees with Merrill Lynch and with each Underwriter participating in the
offering of Underwritten 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 of the 1933 Act Regulations and/or Rule 434 of the
1933 Act Regulations, if and as applicable, and will notify the
Representative(s) immediately, and confirm the notice in writing, of (i) the
effectiveness of





                                      -9-
<PAGE>   10
any post-effective amendment to the Registration Statement or the filing of any
supplement or amendment to the Prospectus, (ii) the receipt of any comments
from the Commission relating to the Registration Statement or the Prospectus,
(iii) any request by the Commission for any amendment to the Registration
Statement or any amendment or supplement to the Prospectus or for additional
information related thereto, 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 Underwritten Securities for offering or
sale in any jurisdiction, or of the initiation or threatening (to the extent
the Company has knowledge) 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
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 Merrill Lynch
notice of its intention to file or prepare any amendment to the Registration
Statement (including any filing under Rule 462(b) of the 1933 Act Regulations),
any Term Sheet or any amendment, supplement or revision to either the
prospectus included in the Registration Statement at the time it became
effective or to the Prospectus, whether pursuant to the 1933 Act, the 1934 Act
or otherwise, will furnish Merrill Lynch 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 Merrill Lynch or
counsel for the Underwriters shall reasonably object.

         (c)     Delivery of Registration Statements.  The Company has
furnished or will deliver to Merrill Lynch and counsel for the Underwriters,
without charge, signed or conformed 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) and signed or conformed copies
of all consents and reports of accountants, and will also deliver to Merrill
Lynch, without charge, a conformed copy of the Registration Statement as
originally filed and of each amendment thereto (without exhibits) for each of
the Underwriters.  The copies of the Registration Statement and each amendment
thereto furnished to the 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 Prospectuses.  The Company will deliver to each
Underwriter, without charge, as many copies of each preliminary prospectus as
such Underwriter may reasonably request, and the Company hereby consents to the
use of such copies for purposes permitted by the 1933 Act.  The Company will
furnish to each Underwriter, without charge, during the period when the
Prospectus is required to be delivered under the 1933 Act or the 1934 Act, such
number of copies of the Prospectus as such Underwriter may reasonably request.
The Prospectus and any amendments or supplements thereto furnished to the
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.





                                      -10-
<PAGE>   11
         (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
Underwritten Securities as contemplated in this Underwriting Agreement and the
applicable Terms Agreement and in the Registration Statement and the
Prospectus. If at any time when the Prospectus is required by the 1933 Act or
the 1934 Act to be delivered in connection with sales of the Underwritten
Securities, any event shall occur or condition shall exist as a result of which
it is necessary, in the opinion of counsel for the 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 the Prospectus in
order that the Prospectus will not contain an untrue statement of a material
fact or omit to state a material fact necessary in order to make the statements
therein, in the light of the circumstances existing at the time it is delivered
to a purchaser, not misleading 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 the 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 Prospectus comply with such requirements, and the
Company will furnish to the Underwriters, without charge, such number of copies
of such amendment or supplement as the Underwriters may reasonably request.

         (f)     Blue Sky Qualifications.  The Company will use its best
efforts, in cooperation with the Underwriters, to qualify the Underwritten
Securities for offering and sale under the applicable securities laws of such
states and other jurisdictions (domestic or foreign) as Merrill Lynch may
designate and to maintain such qualifications in effect for as long as required
for distribution of the Underwritten 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 Underwritten
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 as long as required for the distribution of the
Underwritten Securities.

         (g)     Earnings Statement.  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 Underwritten Securities in the manner
specified in the Prospectus under "Use of Proceeds."

         (i)     Restriction on Sale of Securities.  Between the date of the
applicable Terms Agreement and the Closing Time or such other date specified in
such Terms Agreement, the Company will not, without the prior written consent
of Merrill Lynch, directly or indirectly,





                                      -11-
<PAGE>   12
issue, sell, offer to sell, grant any option for the sale of, or otherwise
dispose of, the securities specified in such Terms Agreement.

         (j)     Reporting Requirements.  The Company, during the period when
the Prospectus is 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 Underwriting Agreement or the
applicable 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 preparation, printing
and delivery to the Underwriters of this Underwriting Agreement, any Terms
Agreement, any Agreement among Underwriters, the Indenture and such other
documents as may be required in connection with the offering, purchase, sale
and delivery of the Underwritten Securities, (iii) the preparation, issuance
and delivery of the Underwritten Securities to the Underwriters, (iv) the fees
and disbursements of the Company's counsel, accountants and other advisors or
agents (including transfer agents and registrars), as well as the fees and
disbursements of the Trustee and its counsel, (v) the qualification of the
Underwritten 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 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 Underwriters of copies of each preliminary
prospectus, any Term Sheet, and the Prospectus and any amendments or
supplements thereto, and (vii) the fees charged by nationally recognized
statistical rating organizations for the rating of the Underwritten Securities.

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

         SECTION 5.       Conditions of Underwriters' Obligations.  The
obligations of the Underwriters to purchase and pay for the Underwritten
Securities pursuant to the applicable 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 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, including any Rule 462 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 Underwriters.  A prospectus
containing information





                                      -12-
<PAGE>   13
relating to the description of the Underwritten Securities, the specific method
of distribution and similar matters shall have been filed with the Commission
in accordance with Rule 424(b)(1), (2), (3), (4) or (5) of the 1933 Act
Regulations, as applicable (or any required post-effective amendment providing
such information shall have been filed and declared effective in accordance
with the requirements of Rule 430A of the 1933 Act Regulations), 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) of the 1933 Act Regulations.

         (b)     Opinion of Counsel for Company.  At Closing Time, Merrill
Lynch shall have received the favorable opinion, dated as of Closing Time, of
Fulbright & Jaworski L.L.P., counsel for the Company, substantially in the form
attached hereto as Exhibit B, together with signed or reproduced copies of such
letter for each of the other Underwriters.  Such counsel may  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 General Counsel.  At Closing Time, Merrill Lynch
shall have received the favorable opinion, dated as of Closing Time, of H.
Suzanne Thomas, Senior Vice President, Secretary and General Counsel of the
Company, substantially in the form attached hereto as Exhibit C, together with
signed or reproduced copies of such letter for each of the other Underwriters.
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 Texas, 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 state that, insofar as such opinion involves factual matters, she
has relied, to the extent she deems proper, upon certificates of officers of
the Company and the Subsidiaries and certificates of public officials.

         (d)     Opinion of Counsel for Underwriters.  At Closing Time, Merrill
Lynch shall have received the favorable opinion, dated as of Closing Time, of
Vinson & Elkins L.L.P., counsel for the Underwriters, together with signed or
reproduced copies of such letter for each of the other Underwriters, covering
such matters as Merrill Lynch may reasonably request.  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 Texas, 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.

         (e)     Officers' Certificate.  At Closing Time, there shall not have
been, since the date of the applicable Terms Agreement or since the respective
dates as of which information is given in the Prospectus, any material adverse
change in the condition, financial or otherwise, or in the earnings or business
affairs of the Company and its subsidiaries considered as one enterprise,
whether or not arising in the ordinary course of business, and Merrill Lynch
shall have received a certificate of the President or a Vice President of the
Company and of 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





                                      -13-
<PAGE>   14
Section 1 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 contained in this
Agreement to be performed or satisfied at or prior to the Closing Time, and
(iv) no stop order suspending the effectiveness of the Registration Statement
has been issued and no proceedings for that purpose have been initiated or, to
their knowledge, threatened by the Commission.

         (f)     Accountant's Comfort Letter.  At the time of the execution of
the applicable Terms Agreement, Merrill Lynch shall have received from Arthur
Andersen LLP a letter dated such date, in form and substance satisfactory to
Merrill Lynch, covering the matters set forth in Exhibit D, together with
signed or reproduced copies of such letter for each of the other 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 contained in the Registration
Statement and the Prospectus.

         (g)     Bring-down Comfort Letter.  At Closing Time, Merrill Lynch
shall have received from Arthur Andersen LLP a letter, dated as of Closing
Time, to the effect that it reaffirms the statements made in the letter
furnished pursuant to subsection (f) 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.

         (h)     Ratings.  At Closing Time, the Underwritten Securities shall
have the ratings accorded by any "nationally recognized statistical rating
organization", as defined by the Commission for purposes of Rule 436(g)(2) of
the 1933 Act Regulations, if and as specified in the applicable Terms
Agreement, and the Company shall have delivered to Merrill Lynch a letter,
dated as of such date, from such rating organization, or other evidence
satisfactory to Merrill Lynch, confirming that the Underwritten Securities have
such ratings.  Since the time of execution of such Terms Agreement, there shall
not have occurred a downgrading in the rating assigned to the Underwritten
Securities or any of the Company's other securities by any such rating
organization, and no such rating organization shall have publicly announced
that it has under surveillance or review, with possible negative implications,
its rating of the Underwritten Securities or any of the Company's other
securities.

         (i)     Additional Documents.  At Closing Time, counsel for the
Underwriters shall have been furnished with such documents and opinions as they
may reasonably require for the purpose of enabling them to pass upon the
issuance and sale of the Underwritten 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
Underwritten Securities as herein contemplated shall be reasonably satisfactory
in form and substance to Merrill Lynch and counsel for the Underwriters.

         (j)     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 applicable Terms Agreement may be terminated by Merrill Lynch by
notice to the Company at any time at or prior to the Closing Time, and such
termination shall be without liability of any party to any other party





                                      -14-
<PAGE>   15
except as provided in Section 4 and except that Sections 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 Underwriter and each person, if any, who
controls any Underwriter within the meaning of Section 15 of the 1933 Act or
Section 20 of the 1934 Act as follows:

                 (i)      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 contained in
         any preliminary prospectus or the Prospectus (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;

                 (ii)     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

                 (iii)    against any and all expense whatsoever, as incurred
         (including the fees and disbursements of counsel chosen by Merrill
         Lynch), 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
Underwriter through Merrill Lynch expressly for use in the Registration
Statement (or any amendment thereto), including the 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); and provided further, however, that this indemnity agreement, as to
any preliminary prospectus or preliminary prospectus supplement, shall not
inure to the benefit of any Underwriter (or any person controlling such
Underwriter) on account of any loss, claim, damage, liability or expense
arising from the sale of Underwritten Securities to any person by such
Underwriter if such Underwriter failed to send





                                      -15-
<PAGE>   16
or give a copy of the Prospectus, as the same may be supplemented or amended,
to such person within the time required by the 1933 Act, and the untrue
statement or alleged untrue statement or omission or alleged omission of a
material fact in such preliminary prospectus or preliminary prospectus
supplement was corrected in the Prospectus (as so supplemented or amended),
unless such failure resulted from noncompliance by the Company with Section
3(a).

         (b)     Indemnification of Company, Directors and Officers.  Each
Underwriter severally agrees to indemnify and hold harmless the Company, each
of its directors, each of the 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 Underwriter expressly for use in
the Registration Statement (or any amendment thereto) or such preliminary
prospectus or the Prospectus (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
Merrill Lynch, 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.





                                      -16-
<PAGE>   17
         (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 reasonable fees and expenses of counsel,
such indemnifying party agrees that it shall be liable for any settlement of
the nature contemplated by Section 6(a)(ii) 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 in accordance with such
request prior to the date of such settlement.  Notwithstanding the immediately
preceding sentence, if at any time an indemnified party shall have requested an
indemnifying party to reimburse the indemnified party for reasonable fees and
expenses of counsel, an indemnifying party shall not be liable for any
settlement of the nature contemplated by Section 6(a)(ii) effected without its
consent if such indemnifying party, prior to the date of settlement, (i)
reimburses such indemnified party in accordance with such request to the extent
such indemnifying party considers such request to be reasonable and (ii)
provides written notice in reasonable detail to the indemnified party of the
reasons such indemnifying party considers the unpaid balance as unreasonable.

         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
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 Underwriters, on the other hand, from the
offering of the Underwritten Securities pursuant to the applicable 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 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 Underwriters, on the other hand, in connection with the offering of the
Underwritten Securities pursuant to the applicable Terms Agreement shall be
deemed to be in the same respective proportions as the total net proceeds from
the offering of such Underwritten Securities (before deducting expenses)
received by the Company and the total underwriting discount received by the
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 initial public offering price of such Underwritten Securities as set
forth on such cover or corresponding location on the Term Sheet, as applicable.

         The relative fault of the Company, on the one hand, and the
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 Underwriters and the parties'
relative





                                      -17-
<PAGE>   18
intent, knowledge, access to information and opportunity to correct or prevent
such statement or omission.

         The Company and the 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 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 Underwriter shall
be required to contribute any amount in excess of the amount by which the total
price at which the Underwritten Securities underwritten by it and distributed
to the public were offered to the public exceeds the amount of any damages
which such Underwriter has otherwise been required to pay by reason of such
untrue or alleged untrue statement or omission or alleged omission.

         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
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 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 Underwriters'
respective obligations to contribute pursuant to this Section 7 are several in
proportion to the aggregate principal amount of Underwritten Securities set
forth opposite their respective names in the applicable Terms Agreement, and
not joint.

         SECTION 8.       Representations, Warranties and Agreements to Survive
Delivery.  All representations, warranties and agreements contained in this
Underwriting Agreement or the applicable Terms Agreement or in certificates of
officers of the Company or any Subsidiary submitted pursuant hereto or thereto
shall remain operative and in full force and effect, regardless of any
investigation made by or on behalf of any Underwriter or controlling person, or
by or on behalf of the Company, and shall survive delivery of and payment for
the Underwritten Securities.

         SECTION 9.       Termination.

         (a)     Underwriting Agreement.  This Underwriting Agreement
(excluding the applicable Terms Agreement) may be terminated for any reason at
any time by the Company or by Merrill Lynch upon the giving of 30 days' prior
written notice of such termination to the other party hereto.





                                      -18-
<PAGE>   19
         (b)     Terms Agreement.  Merrill Lynch may terminate the applicable
Terms Agreement, by notice to the Company, at any time at or prior to the
Closing Time, if (i) there has been, since the time of execution of such Terms
Agreement or since the respective dates as of which information is given in the
Prospectus, any material adverse change in the condition, financial or
otherwise, or in the earnings or business affairs of the Company and its
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, if the Underwritten
Securities are denominated or payable in, or indexed to, one or more foreign or
composite currencies, 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 Merrill Lynch, impracticable to
market the Underwritten Securities or to enforce contracts for the sale of the
Underwritten Securities, or (iii) trading in any securities of the Company has
been suspended or limited by the Commission or the New York Stock Exchange, 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, or
minimum or maximum prices for trading have been fixed, or maximum ranges for
prices have been required, by either of said exchanges or by such system or by
order of the Commission, the NASD or any other governmental authority, or (iv)
a banking moratorium has been declared by either Federal or New York or Texas
authorities or, if the Underwritten Securities are denominated or payable in,
or indexed to, one or more foreign or composite currencies, by the relevant
authorities in the related foreign country or countries.

         (c)     Liabilities.  If this Underwriting Agreement or the applicable
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 6 and 7 shall survive
such termination and remain in full force and effect.

         SECTION 10.      Default by One or More of the Underwriters.  If one
or more of the Underwriters shall fail at the Closing Time to purchase the
Underwritten Securities which it or they are obligated to purchase under the
applicable Terms Agreement (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 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 aggregate principal amount of Defaulted Securities does
not exceed 10% of the aggregate principal amount of Underwritten Securities to
be purchased on such date pursuant to such Terms Agreement, the non-defaulting
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 Agreement bear to the underwriting obligations of
all non-defaulting Underwriters, or

         (b)     if the aggregate principal amount of Defaulted Securities
exceeds 10% of the aggregate principal amount of Underwritten Securities to be
purchased on such date pursuant to





                                      -19-
<PAGE>   20
such Terms Agreement, such Terms Agreement shall terminate without liability on
the part of any non-defaulting Underwriter.

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

         In the event of any such default which does not result in a
termination of the applicable Terms Agreement, either Merrill Lynch or the
Company shall have the right to postpone the Closing Time for a period not
exceeding seven days in order to effect any required changes in the
Registration Statement or the Prospectus or in any other documents or
arrangements.

         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 Underwriters shall be directed to Merrill Lynch at World Financial Center,
North Tower, New York, New York 10281-1209, attention of the Debt Syndicate
Department; and notices to the Company shall be directed to it at 1360 Post Oak
Boulevard, Suite 1000, Houston, Texas  77056, attention of the Chief Financial
Officer.

         SECTION 12.      Parties.  This Underwriting Agreement and the
applicable Terms Agreement shall each inure to the benefit of and be binding
upon the Company, Merrill Lynch and, upon execution of such Terms Agreement,
any other Underwriters and their respective successors.  Nothing expressed or
mentioned in this Underwriting Agreement or such Terms Agreement is intended or
shall be construed to give any person, firm or corporation, other than the
Underwriters, the Company and its 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 Underwriting Agreement or such Terms Agreement or any
provision herein or therein contained.  This Underwriting Agreement and such
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 Underwritten
Securities from any Underwriter shall be deemed to be a successor by reason
merely of such purchase.

         SECTION 13.      GOVERNING LAW.  THIS UNDERWRITING AGREEMENT AND ANY
APPLICABLE TERMS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE
WITH THE LAWS OF THE STATE OF NEW YORK.

         SECTION 14.      Effect of Headings.  The Article and Section headings
herein are for convenience only and shall not affect the construction hereof.





                                      -20-
<PAGE>   21
         If the foregoing is in accordance with your understanding of our
agreement, please sign and return to the Company a counterpart hereof,
whereupon this Underwriting Agreement, along with all counterparts, will become
a binding agreement between Merrill Lynch and the Company in accordance with
its terms.

                                   Very truly yours,
                                
                                   WEATHERFORD ENTERRA, INC.
                                
                                
                                   By:   /s/ Norman W. Nolen                 
                                      ------------------------------------------
                                           Name:   Norman W. Nolen
                                           Title:  Senior Vice President, 
                                                   Chief Financial Officer and
                                                   Treasurer
         
                                
                                

CONFIRMED AND ACCEPTED,
  as of the date first above written:
MERRILL LYNCH & CO.
MERRILL LYNCH, PIERCE, FENNER & SMITH
            INCORPORATED

By Merrill Lynch, Pierce, Fenner & Smith 
               Incorporated



By:  /s/ Christopher D. Mize               
   ----------------------------------------
         Authorized Signatory





                                      -21-
<PAGE>   22
                                                                      Schedule A


                           WEATHERFORD ENTERRA, INC.

                            SIGNIFICANT SUBSIDIARIES


CRC-Evans Pipeline International, Inc.
Weatherford U.S., Inc.
CRC-Evans Automatic Welding Limited
Weatherford Enterra U.S., Limited Partnership
Enterra Petroleum Equipment Group, Inc.
Enterra Compression Company
Enterra Compression Investment Company
Weatherford Enterra Compression Company, L.P.
Weatherford/Lamb, Inc.
Weatherford Enterra Canada Ltd.
Weatherford Holding GmbH
Weatherford Oil Tool GmbH





                                  Schedule A-1
<PAGE>   23
                                                                       Exhibit A



                           WEATHERFORD ENTERRA, INC.
                             a Delaware corporation

                         __ % Notes due ______________,

                                TERMS AGREEMENT


                                                          ________________, 1996


To:      Weatherford Enterra, Inc.
         Suite 1000
         1360 Post Oak Boulevard
         Houston, Texas  77056

Ladies and Gentlemen:

         We understand that Weatherford Enterra, Inc., a Delaware corporation
(the "Company"), proposes to issue and sell $          aggregate principal
amount of its unsecured debt securities (the "Underwritten Securities").
Subject to the terms and conditions set forth or incorporated by reference
herein, we [the underwriters named below (the "Underwriters")] offer to
purchase [,severally and not jointly,] the principal amount of Underwritten
Securities opposite our names set forth below at the purchase price set forth
below.





                                      A-2
<PAGE>   24
<TABLE>
<CAPTION>
                                                   Principal Amount
Underwriter                                        of Underwritten Securities
- -----------                                        --------------------------
<S>                                                <C>
                                                   _______________
Total                                              [$]                          
                                                   ==========================
</TABLE>


         The Underwritten Securities shall have the following terms:

Title:
Rank:
Ratings:
Aggregate principal amount:
Denominations:
Currency of payment:
Interest rate or formula:
Interest payment dates:
Regular record dates:
Stated maturity date:
Redemption provisions:
Sinking fund requirements:





                                      A-3
<PAGE>   25
Fixed or Variable Price Offering:  [Fixed] [Variable] Price Offering
         If Fixed Price Offering, initial public offering price per share:
         % of the principal amount, plus accrued interest [amortized original
         issue discount], if any, from ____________.
Purchase price per note:  ____% of principal amount, plus accrued interest
         [amortized original issue discount], if any, from ___________ (payable
         in next [same] day funds).
Form:
Other terms and conditions:
Closing time, date and location:

         All of the provisions contained in the document attached as Annex I
hereto entitled "Weatherford Enterra, Inc.--Debt Securities--Underwriting
Agreement" are hereby incorporated by reference in their entirety herein and
shall be deemed to be a part of this Terms Agreement to the same extent as if
such provisions had been set forth in full herein.  Unless otherwise defined
herein, terms defined in such document are used herein as therein defined.


                                  Very truly yours,                         
                                                                            
                                  MERRILL LYNCH & CO.                       
                                                                            
                                  MERRILL LYNCH, PIERCE, FENNER & SMITH     
                                              INCORPORATED
                                                                            
                                      By Merrill Lynch, Pierce, Fenner & Smith, 
                                                     Incorporated    
                                                                            
                                                                            
                                  By:                                       
                                     ------------------------------------------
                                  Authorized Signatory                      
                                                                             
                                  [Acting on behalf of itself and the other 
                                    named Underwriters]   

Accepted:

WEATHERFORD ENTERRA, INC.


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





                                      A-4
<PAGE>   26
                                                                       Exhibit B


                      FORM OF OPINION OF COMPANY'S COUNSEL
                          TO BE DELIVERED PURSUANT TO
                                  SECTION 5(b)


         (1)     The Company has been duly incorporated and is validly existing
as a corporation in good standing under the laws of the State of Delaware.

         (2)     The Company 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, the Underwriting Agreement and the Terms Agreement.

         (3)     The Company is duly qualified to transact business as a
foreign corporation and is in good standing in each jurisdiction in which such
qualification is required, except where the failure to so qualify or be in good
standing would not result in a Material Adverse Effect.

         (4)     The Underwriting Agreement and the Terms Agreement have been
duly authorized, executed and delivered by the Company.

         (5)     The Underwritten Securities have been duly authorized by the
Company for issuance and sale pursuant to the Underwriting Agreement and the
Terms Agreement.  The Underwritten Securities, when issued and authenticated in
the manner provided for in the Indenture and delivered pursuant to the
provisions of the Underwriting Agreement and the Terms Agreement against
payment of the consideration therefor specified in the Terms Agreement, will
constitute valid and legally binding obligations of the Company, enforceable
against the Company in accordance with their terms, except to the extent that
(a) such enforcement may be subject to applicable federal or state bankruptcy,
insolvency, reorganization, moratorium, fraudulent conveyance or other laws or
court decisions relating to or affecting creditors' rights generally, (b) such
enforcement may be limited by equitable principles of general applicability,
including without limitation concepts of materiality, reasonableness, good
faith and fair dealing, equitable subordination and the possible unavailability
of specific performance or injunctive relief (regardless of whether considered
in a proceeding in equity or at law or whether codified by statute) and (c)
such enforcement may be limited by (I) requirements that a claim with respect
to any Debt Securities denominated other than in U.S. dollars (or a foreign or
composite currency judgment in respect of such claim) be converted into U.S.
dollars at a rate of exchange prevailing on a date determined pursuant to
applicable law or (II) governmental authority to limit, delay or prohibit the
making of payments outside the United States.  The Underwritten Securities are
in the form contemplated by, and each registered holder thereof is entitled to
the benefits of, the Indenture.

         (6)     The Indenture has been duly authorized, executed and delivered
by the Company and (assuming due authorization, execution and delivery thereof
by the Trustee) constitutes a valid and legally binding obligation of the
Company, enforceable against the Company in accordance with its terms, except
to the extent that (a) such enforcement may be subject to
<PAGE>   27
applicable federal or state bankruptcy, insolvency, reorganization, moratorium,
fraudulent conveyance or other laws or court decisions relating to or affecting
creditors' rights generally, (b) such enforcement may be limited by equitable
principles of general applicability, including without limitation concepts of
materiality, reasonableness, good faith and fair dealing, equitable
subordination and the possible unavailability of specific performance or
injunctive relief (regardless of whether considered in a proceeding in equity
or at law or whether codified by statute) and (c) such enforcement may be
limited by (I) requirements that a claim with respect to any Debt Securities
denominated other than in U.S. dollars (or a foreign or composite currency
judgment in respect of such claim) be converted into U.S. dollars at a rate of
exchange prevailing on a date determined pursuant to applicable law or (II)
governmental authority to limit, delay or prohibit the making of payments
outside the United States.

         (7)     The Underwritten Securities and the Indenture conform in all
material respects to the descriptions thereof contained in the Prospectus and
are in substantially the form filed as an exhibit to the Registration
Statement.

         (8)     The information in the Prospectus under "Description of
Underwritten Securities," to the extent that it constitutes matters of law,
summaries of legal matters or legal conclusions, has been reviewed by such
counsel and is correct in all material respects.

         (9)     To the best of such counsel's knowledge, 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 threatened,
against or affecting the Company or any subsidiary thereof which is required to
be disclosed in the Registration Statement and the Prospectus (other than as
stated therein).

         (10)    To the best of such counsel's knowledge, there are no
contracts, indentures, mortgages, loan agreements, notes, leases or other
instruments required to be described or referred to in the Registration
Statement or to be filed as exhibits thereto other than those described or
referred to therein or filed or incorporated by reference as exhibits thereto,
and the descriptions thereof or references thereto are correct in all material
respects.

         (11)    The Registration Statement is effective under the 1933 Act.
Any required filing of the Prospectus pursuant to Rule 424(b) has been made in
the manner and within the time period required by Rule 424(b).  To the best of
such counsel's knowledge, no stop order suspending the effectiveness of the
Registration Statement has been issued under the 1933 Act or proceedings
therefor initiated or threatened by the Commission.

         (12)    The Registration Statement, [the Rule 430A Information,] [the
Rule 434 Information,] the Prospectus, excluding the documents incorporated by
reference therein, and each amendment or supplement to the Registration
Statement and Prospectus, excluding the documents incorporated by reference
therein, as of their respective effective or issue dates (other than the
financial statements, including the notes thereto, and financial statement
schedules and other financial, accounting and statistical information included
therein and the Trustee's Statement of Eligibility on Form T-1 (the "Form
T-1"), as to which no opinion need be rendered) complied as to form in all
material respects with the requirements of the 1933 Act and the 1933 Act
Regulations.
<PAGE>   28
         (13)    The documents incorporated by reference in the Prospectus
(other than the financial statements, including the notes thereto, and
financial statement schedules and other financial, accounting and statistical
information included therein, as to which no opinion need be rendered), when
they were filed with the Commission, complied as to form in all material
respects with the requirements of the 1934 Act and the 1934 Act Regulations.

         (14)    No filing, authorization, approval, consent, license, order,
registration, qualification or decree of or with any court or governmental
authority or agency having jurisdiction over the Company is required for the
performance by the Company of its obligations under the Underwriting Agreement,
the Terms Agreement or the Indenture or in connection with the transactions
contemplated therein except for (i) such as have been made or obtained under
the 1933 Act, the 1933 Act Regulations, the 1939 Act and the 1939 Act
Regulations or (ii) such as may be required under state securities or blue sky
laws (as to which no opinion need be rendered).

         (15)    The Company is not an "investment company" within the meaning
of the Investment Company Act of 1940, as amended (the "1940 Act").

         Nothing has come to the attention of such counsel that would lead such
counsel to believe that the Registration Statement (except for financial
statements and schedules and other financial data included therein and for the
Form T-1, as to which we make no statement), at the time the Registration
Statement or any amendment thereto became effective or at the date of the
applicable Terms Agreement, contained an untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary to
make the statements therein not misleading or that the Prospectus or any
amendment or supplement thereto (except for financial statements and schedules
and other financial data included therein as to which such counsel makes no
statement), at the time the Prospectus was issued, at the time any such amended
or supplemented prospectus was issued or at the Closing Time, included or
includes an untrue statement of a material fact or omitted or omits 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.

         In rendering such opinion, such counsel may rely, as to matters of
fact (but not as to legal conclusions), to the extent they deem proper, on
certificates of responsible officers of the Company and public officials.  Such
opinion shall not state that it is to be governed or qualified by, or that it
is otherwise subject to, any treatise, written policy or other document
relating to legal opinions, including, without limitation, the Legal Opinion
Accord of the ABA Section of Business Law (1991).
<PAGE>   29
                                                                       Exhibit C


                  FORM OF OPINION OF COMPANY'S GENERAL COUNSEL
                          TO BE DELIVERED PURSUANT TO
                                  SECTION 5(c)



         (1)     Each Subsidiary other than Weatherford Enterra U.S., Limited
Partnership and Weatherford Enterra Compression Company, L.P. has been duly
incorporated and is validly existing as a corporation in good standing under
the laws of its jurisdiction of incorporation, has corporate power and
authority to own, lease and operate its properties and to conduct its business
as described in the Prospectus and, to the best of her knowledge, is duly
qualified to transact business as a foreign corporation 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.  All of the issued and outstanding shares of capital
stock of, or, as applicable, limited partnership interests in, each Subsidiary
have been duly authorized and are validly issued, fully paid and nonassessable
and, to the best of her knowledge are owned by the Company, directly or through
Subsidiaries, free and clear of any security interest, mortgage, pledge, lien,
encumbrance, claim or equity.  None of the outstanding shares of capital stock
of, or, as applicable, limited partnership interests in, any Subsidiary was
issued in violation of preemptive or other similar rights.  Weatherford Enterra
U.S., Limited Partnership and Weatherford Enterra Compression Company, L.P. are
limited partnerships duly formed pursuant to the provisions of the Louisiana
Partnership Act and the Delaware Revised Uniform Limited Partnership Act,
respectively, and are validly existing as limited partnerships under the laws
of such states and are duly qualified to transact business as foreign limited
partnerships and are validly existing in each other jurisdiction in which such
qualification is required, except where the failure to so qualify or be in
existence would not result in a Material Adverse Effect.

         (2)     To the best of her knowledge, the execution, delivery and
performance of the Underwriting Agreement, the Terms Agreement and the
Indenture and any other agreement or instrument entered into or to be entered
into by the Company in connection with the consummation of the transactions
contemplated in the Underwriting Agreement and Terms Agreement and in the
Registration Statement and the Prospectus (including the issuance and sale of
the Underwritten Securities and the use of the proceeds from the sale of the
Underwritten Securities as described under the caption "Use of Proceeds") and
compliance by the Company with its obligations thereunder 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 under,
or result in the creation or imposition of any lien, charge or encumbrance upon
any property or assets of the Company or any Subsidiary pursuant to, any
contract, indenture, mortgage, deed of trust, loan or credit agreement, note,
lease or any other agreement or instrument, known to her, 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 assets, properties or operations of the Company or any
Subsidiary is subject, except for such conflicts, breaches, defaults, events or
liens, charges or encumbrances that would not result in a Material Adverse
Effect, nor will such





                                      C-1
<PAGE>   30
action result in any violation of the provisions of the restated certificate of
incorporation or bylaws of the Company or any applicable law, statute, rule,
regulation, judgment, order, writ or decree, known to her, of any government,
government instrumentality or court, domestic or foreign, having jurisdiction
over the Company or any of its assets, properties or operations, except where
such violation would not result in a Material Adverse Effect.

         (3)     To the best of her knowledge, there are no legal or other
governmental proceedings pending or threatened against the Company or any
Subsidiary which is required to be disclosed in the Registration Statement and
the Prospectus (other than as stated therein).





                                      C-2
<PAGE>   31
                                                                       Exhibit D


         [FORM OF ACCOUNTANTS' COMFORT LETTER PURSUANT TO SECTION 5(e)]

We are independent public accountants with respect to the Company within the
meaning of the 1933 Act and the applicable published 1933 Act Regulations

                 (i)      in our opinion, the audited financial statements and
         the related financial statement schedules included or incorporated by
         reference in the Registration Statement and the Prospectus comply as
         to form in all material respects with the applicable accounting
         requirements of the 1933 Act and the published rules and regulations
         thereunder;

                 (ii)     on the basis of procedures (but not an examination in
         accordance with generally accepted auditing standards) consisting of a
         reading of the unaudited interim consolidated financial statements of
         the Company for the [three month periods ended ____________, 19___ and
         __________, 19___, the three and six month periods ended
         ______________, 19___ and _____________, 19____, and the three and
         nine month periods ended _____ ____, 19___ and _________________ ,
         19___, included or incorporated by reference in the Registration
         Statement and the Prospectus (collectively, the "10-Q Financials")] [,
         a reading of the latest available unaudited interim consolidated
         financial statements of the Company], a reading of the minutes of all
         meetings of the stockholders and directors of the Company and the
         Subsidiaries and the Committees of the Company's Board of Directors
         and any Subsidiary committees since the end of the last audited
         period, inquiries of certain officials of the Company and the
         Subsidiaries responsible for financial and accounting matters, a
         review of interim financial information in accordance with standards
         established by the American Institute of Certified Public Accountants
         in Statement on Auditing Standards No. 71, Interim Financial
         Information ("SAS 71"), with respect to the [description of relevant
         periods] and such other inquiries and procedures as may be specified
         in such letter, nothing came to our attention that caused us to
         believe that:

                 [(A)     the 10-Q Financials incorporated by reference in the
         Registration Statement and the Prospectus do not comply as to form in
         all material respects with the applicable accounting requirements of
         the 1934 Act and the 1934 Act Regulations applicable to unaudited
         financial statements included in Form 10-Q or any material
         modifications should be made to the 10-Q Financials incorporated by
         reference in the Registration Statement and the Prospectus for them to
         be in conformity with generally accepted accounting principles;]

                 [( )     the ___-month financials included in the Registration
         Statement and the Prospectus do not comply as to form in all material
         respects with the applicable accounting requirements of the 1933 Act
         and the 1933 Act Regulations applicable to unaudited interim financial
         statements included in registration statements or any material
         modifications should be made to the _________-month financials
         included in the Registration Statement and the Prospectus for them to
         be in conformity with generally accepted accounting principles;]





                                  Exhibit D-1
<PAGE>   32
                 ( )      at [__________, 19____ and at] a specified date not
         more than five days prior to the date of the applicable Terms
         Agreement, there was any change in the stockholders' equity or capital
         stock of the Company and its Subsidiaries or any decrease in the net
         current assets  of the Company and its Subsidiaries or any increase in
         the long-term debt of the Company and its Subsidiaries, in each case
         as compared with amounts shown in the latest balance sheet included in
         the Registration Statement and the Prospectus, except in each case for
         changes, decreases or increases that the Registration Statement and
         the Prospectus disclose have occurred or may occur; or

                 ( )      [for the period from _________, 19____ to __________,
         19____ and ] for the period from _______, 19___ to a specified date
         not more than five days prior to the date of the applicable Terms
         Agreement, there was any decrease in revenues, net income or earnings
         per share, in each case as compared with the comparable period in the
         preceding year, except in each case for any decreases that the
         Registration Statement and the Prospectus discloses have occurred or
         may occur;

                 (iii)    based upon the procedures set forth in clause (ii)
         above and a reading of the Selected Financial Data included in the
         Registration Statement and the Prospectus and a reading of the
         financial statements from which such data were derived, nothing came
         to our attention that caused us to believe that the Selected Financial
         Data included in the Registration Statement and the Prospectus do not
         comply as to form in all material respects with the disclosure
         requirements of Item 301 of Regulation S-K of the 1933 Act, that the
         amounts included in the Selected Financial Data are not in agreement
         with the corresponding amounts in the audited consolidated financial
         statements for the respective periods or that the financial statements
         not included in the Registration Statement and the Prospectus from
         which certain of such data were derived are not in conformity with
         generally accepted accounting principles;

                 (iv)     we have compared the information in the Registration
         Statement and the Prospectus under selected captions with the
         disclosure requirements of Regulation S-K of the 1933 Act and on the
         basis of limited procedures specified herein, nothing came to our
         attention that caused us to believe that this information does not
         comply as to form in all material respects with the disclosure
         requirements of Items 302, 402 and 503(d), respectively, of Regulation
         S-K;

                 [(v)     based upon the procedures set forth in clause (ii)
         above, a reading of the unaudited financial statements of the Company
         for [the most recent period] that have not been included in the
         Registration Statement and the Prospectus and a review of such
         financial statements in accordance with SAS 71, nothing came to our
         attention that caused us to believe that the unaudited amounts for
         ______________________________________ for the [most recent period] do
         not agree with the amounts set forth in the unaudited consolidated
         financial statements for those periods or that such unaudited amounts
         were not determined on a basis substantially consistent with that of
         the corresponding amounts in the audited consolidated financial
         statements;]

                 [(vi)]   we are unable to and do not express any opinion on
         the [Pro Forma Combining Statement of Operations] (the "Pro Forma
         Statement") included in the





                                  Exhibit D-2
<PAGE>   33
         Registration Statement and the Prospectus or on the pro forma
         adjustments applied to the historical amounts included in the Pro
         Forma Statement; however, for purposes of this letter we have:

                          (A)     read the Pro Forma Statement;

                          (B)     performed [an audit] [a review in accordance
                 with SAS 71] of the financial statements to which the pro
                 forma adjustments were applied;

                          (C)     made inquiries of certain officials of the
                 Company who have responsibility for financial and accounting
                 matters about the basis for their determination of the pro
                 forma adjustments and whether the Pro Forma Statement complies
                 as to form in all material respects with the applicable
                 accounting requirements of Rule 11-02 of Regulation S-X; and

                          (D)     proved the arithmetic accuracy of the
                 application of the pro forma adjustments to the historical
                 amounts in the Pro Forma Statement; and

         on the basis of such procedures and such other inquiries and
         procedures as specified herein, nothing came to our attention that
         caused us to believe that the Pro Forma Statement included in the
         Registration Statement does not comply as to form in all material
         respects with the applicable requirements of Rule 11-02 of Regulation
         S-X or that the pro forma adjustments have not been properly applied
         to the historical amounts in the compilation of those statements;] and

                 (vii)    in addition to the procedures referred to in clause
         (ii) above, we have performed other procedures, not constituting an
         audit, with respect to certain amounts, percentages, numerical data
         and financial information appearing in the Registration Statement and
         the Prospectus, which are specified herein, and have compared certain
         of such items with, and have found such items to be in agreement with,
         the accounting and financial records of the Company.





                                  Exhibit D-3

<PAGE>   1


                                                                     EXHIBIT 1.2


                           WEATHERFORD ENTERRA, INC.
                             a Delaware corporation

                         7 1/4% Notes due May 15, 2006

                                TERMS AGREEMENT


                                                                    May 22, 1996


To:      Weatherford Enterra, Inc.
         Suite 1000
         1360 Post Oak Boulevard
         Houston, Texas  77056

Ladies and Gentlemen:

         We understand that Weatherford Enterra, Inc., a Delaware corporation
(the "Company"), proposes to issue and sell $200,000,000 aggregate principal
amount of its unsecured debt securities (the "Underwritten Securities").
Subject to the terms and conditions set forth or incorporated by reference
herein, the underwriters named below (the "Underwriters") offer to purchase,
severally and not jointly, the principal amount of Underwritten Securities
opposite their respective names set forth below at the purchase price set forth
below.

<PAGE>   2
<TABLE>
<CAPTION>
                                                                    Principal Amount of
Underwriter                                                         Underwritten Securities
- -----------                                                         -----------------------
<S>                                                                 <C>            
Merrill Lynch, Pierce, Fenner & Smith 
            Incorporated                                            $           140,000,000
BA Securities, Inc.                                                              30,000,000
Chase Securities Inc.                                                            30,000,000
                                                                          -----------------
                                                                         
                                                                    Total $     200,000,000
                                                                          =================
</TABLE>                                                                 


         The Underwritten Securities shall have the following terms:

Title:                                     7 1/4% Notes due May 15, 2006
Rank:                                      General unsecured and pari passu
                                           with the Company's existing and
                                           future unsecured and unsubordinated
                                           indebtedness
Ratings:                                   Moody's Investors Service Baa1
                                           Standard & Poor's Corporation    BBB+
Aggregate principal amount:                $200,000,000
Denominations:                             $1,000 and integral multiples thereof
Currency of payment:                       U.S. Dollars
Interest rate or formula:                  7 1/4%
Interest payment dates:                    May 15 and November 15, commencing
                                           November 15, 1996
Regular record dates:                      May 1 and November 1
Stated maturity date:                      May 15, 2006
Redemption provisions:                     Not redeemable prior to maturity
Sinking fund requirements:                 None
<PAGE>   3
Fixed or Variable Price Offering:  Fixed Price Offering
         If Fixed Price Offering, initial public offering price per share:  
         99.562% of the principal amount, plus accrued interest, if any, from 
         May 28, 1996.
Purchase price per note:                   98.912% of principal amount, plus
                                           accrued interest, if any, from May 
                                           28, 1996 (payable in same day funds).
Other terms and conditions:                None
Closing time, date and location:           May 28, 1996, at the offices of
                                           Fulbright & Jaworski L.L.P.
                                           1301 McKinney, Suite 5100
                                           Houston, Texas 77010-3095


         All of the provisions contained in the document attached as Annex I
hereto entitled "Weatherford Enterra, Inc.--Debt Securities--Underwriting
Agreement" are hereby incorporated by reference in their entirety herein and
shall be deemed to be a part of this Terms Agreement to the same extent as if
such provisions had been set forth in full herein.  Unless otherwise defined
herein, terms defined in such document are used herein as therein defined.





<PAGE>   4
                                    Very truly yours,

                                    MERRILL LYNCH & CO.

                                    MERRILL LYNCH, PIERCE, FENNER & SMITH
                                                INCORPORATED

                                    BA SECURITIES, INC.

                                    CHASE SECURITIES INC.

                                    By:    Merrill Lynch, Pierce, Fenner & Smith
                                                       Incorporated


                                    By:   /s/ Christopher D. Mize      
                                       ----------------------------------
                                    Authorized Signatory

                                    Acting on behalf of itself and the 
                                    other named Underwriters

Accepted:

WEATHERFORD ENTERRA, INC.


By:    /s/ Norman W. Nolen                 
   -------------------------------------------
      Name:   Norman W. Nolen
      Title:  Senior Vice President, Chief
              Financial Officer and Treasurer

<PAGE>   5
                                                                         ANNEX I
                           WEATHERFORD ENTERRA, INC.
                            (a Delaware corporation)


                                Debt Securities


                             UNDERWRITING AGREEMENT

                                                                    May 22, 1996

MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith
            Incorporated
North Tower
World Financial Center
New York, New York 10281-1209

Ladies and Gentlemen:

         Weatherford Enterra, Inc., a Delaware corporation (the "Company"),
proposes to issue and sell up to $300 million in aggregate principal amount of
its unsecured debt securities (the "Debt Securities"), from time to time, in or
pursuant to one or more offerings on terms to be determined at the time of
sale.

         The Debt Securities will be issued in one or more series under an
indenture, dated as of May 17, 1996 (the "Indenture"), between the Company and
Bank of Montreal Trust Company, as trustee (the "Trustee").  Each series of
Debt Securities may vary, as applicable, as to title, aggregate principal
amount, rank, interest rate or formula and timing of payments thereof, stated
maturity date, redemption and/or repayment provisions, sinking fund
requirements and any other variable terms established by or pursuant to the
Indenture.

         Whenever the Company determines to make an offering of Debt Securities
through Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated
("Merrill Lynch"), or through an underwriting syndicate managed by Merrill
Lynch, the Company will enter into an agreement (the "Terms Agreement")
providing for the sale of such Debt Securities to, and the purchase and
offering thereof by, Merrill Lynch and such other underwriters, if any,
selected by Merrill Lynch (the "Underwriters", which term shall include Merrill
Lynch, whether acting as sole Underwriter or as a member of an underwriting
syndicate, as well as any Underwriter substituted pursuant to Section 10
hereof).  The Terms Agreement relating to each offering of Debt Securities
shall specify the aggregate principal amount of Debt Securities to be issued
(the "Underwritten Securities"), the name of each Underwriter participating in
such offering (subject to substitution as provided in Section 10 hereof) and
the name of any Underwriter other than Merrill Lynch acting as co-manager in
connection with such offering, the aggregate principal amount of Underwritten
Securities which each such Underwriter severally agrees to purchase, whether
such offering is on a fixed or variable
<PAGE>   6
price basis and, if on a fixed price basis, the initial offering price, the
price at which the Underwritten Securities are to be purchased by the
Underwriters, the form, time, date and place of delivery of and payment for the
Underwritten Securities and any other material variable terms of the
Underwritten Securities.  The Terms Agreement, a form of which is attached as
Exhibit A, shall be in form and substance satisfactory to Merrill Lynch, and
may take the form of an exchange of any standard form of written
telecommunication between the Company and Merrill Lynch, acting for itself and,
if applicable, as representative of any other Underwriters.  Each offering of
Underwritten Securities through Merrill Lynch as sole Underwriter or through an
underwriting syndicate managed by Merrill Lynch will be governed by this
Underwriting Agreement, as supplemented by the applicable Terms Agreement.

         The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement on Form S-3 (No. 333-02281) and
pre-effective amendment no. 1 thereto for the registration of the Debt
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 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 applicable Terms Agreement.
Such registration statement (as so amended, if applicable) has been declared
effective by the Commission and the Indenture has been duly qualified under the
Trust Indenture Act of 1939, as amended (the "1939 Act").  Such registration
statement (as so amended, if applicable), including the information, if any,
deemed to be a part thereof pursuant to Rule 430A(b) of the 1933 Act
Regulations (the "Rule 430A Information") or Rule 434(d) of the 1933 Act
Regulations (the "Rule 434 Information"), is referred to herein as the
"Registration Statement"; and the final prospectus and the prospectus
supplement relating to the offering of the Underwritten Securities, in the form
first furnished to the Underwriters by the Company for use in connection with
the applicable offering of the Underwritten Securities, are collectively
referred to herein as the "Prospectus"; provided, however, that all references
to the "Registration Statement" and the "Prospectus" shall be deemed to include
all documents incorporated therein by reference pursuant to the Securities
Exchange Act of 1934, as amended (the "1934 Act"), prior to the execution of
the applicable Terms Agreement; provided, further, that if the Company files a
registration statement with the Commission pursuant to Section 462(b) of the
1933 Act Regulations (the "Rule 462 Registration Statement"), then, after such
filing, all references to "Registration Statement" shall be deemed to include
the Rule 462 Registration Statement; and provided, further, that if the Company
elects to rely upon Rule 434 of the 1933 Act Regulations, then all references
to "Prospectus" shall be deemed to include the final or preliminary prospectus
and the applicable term sheet or abbreviated term sheet (the "Term Sheet"), as
the case may be, in the form first furnished to the Underwriters by the Company
in reliance upon Rule 434 of the 1933 Act Regulations, and all references in
this Underwriting Agreement to the date of the Prospectus shall mean the date
of the Term Sheet.  A "preliminary prospectus" shall be deemed to refer to any
prospectus used before the registration statement became effective and any
prospectus that omitted, as applicable, the Rule 430A Information, the Rule 434
Information or other information to be included upon pricing in a form of
prospectus filed with the Commission pursuant to Rule 424(b) of the 1933 Act
Regulations, that was used after such effectiveness and prior to the execution
and delivery of the applicable Terms Agreement.  For purposes of this
Underwriting Agreement, all references to the Registration Statement,
Prospectus, Term Sheet or preliminary prospectus or to any amendment or
supplement to any of the foregoing shall be deemed to include the copy





                                      -2-
<PAGE>   7
filed with the Commission pursuant to its Electronic Data Gathering, Analysis
and Retrieval system ("EDGAR").

         All references in this Underwriting Agreement to financial statements
and schedules and other information which are "contained," "included" or
"stated" (or other references of like import) in the Registration Statement,
Prospectus or preliminary prospectus shall be deemed to mean and include all
such financial statements and schedules and other information which are
incorporated by reference in the Registration Statement, Prospectus or
preliminary prospectus, as the case may be; and all references in this
Underwriting Agreement to amendments or supplements to the Registration
Statement, Prospectus or preliminary prospectus shall be deemed to mean and
include the filing of any document under the 1934 Act which is incorporated by
reference in the Registration Statement, Prospectus or preliminary prospectus,
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
Underwriter named in the applicable Terms Agreement, as of the date thereof, as
of the Closing Time (as defined below), as follows:

                 (1)      Compliance with Registration Requirements.  The
         Company meets the requirements for use of Form S-3 under the 1933 Act.
         Each of the Registration Statement and any Rule 462 Registration
         Statement has become effective under the 1933 Act and no stop order
         suspending the effectiveness of the Registration Statement or any Rule
         462 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. The Indenture has been duly
         qualified under the 1939 Act.

                 At the respective times the Registration Statement, any Rule
         462 Registration Statement and any post-effective amendments thereto
         became effective and at the Closing Time, the Registration Statement,
         any Rule 462 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 the 1939
         Act and the rules and regulations of the Commission under the 1939 Act
         (the "1939 Act Regulations") and the Registration Statement, any Rule
         462 Registration Statement and any post-effective amendments and
         supplements thereto (including the Company's most recent Annual Report
         on Form 10-K filed with the Commission) 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.  At the date of the Prospectus and at the
         Closing Time, the Prospectus and any amendments and supplements
         thereto did not and will not contain an untrue statement of a material
         fact or 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





                                      -3-
<PAGE>   8
         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 any
         post-effective amendments thereto or the Prospectus made in reliance
         upon and in conformity with information furnished to the Company in
         writing by any Underwriter expressly for use in the Registration
         Statement or any post-effective amendments thereto or the Prospectus.

                 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
         Regulations, complied when so filed in all material respects with the
         1933 Act Regulations and, if applicable, each preliminary prospectus
         and the Prospectus delivered to the Underwriters for use in connection
         with the offering of Underwritten Securities will, at the time of such
         delivery, be substantially 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 Prospectus, 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 Prospectus,
         at the date of the Prospectus and at the Closing Time, did not and
         will not contain an untrue statement of a material fact or 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.

                 (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 Prospectus,
         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.  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 Registration Statement
         and the Prospectus 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 Prospectus
         present fairly the information shown therein and have been compiled on
         a basis consistent with that of the audited financial statements
         included in the Registration Statement and the Prospectus.





                                      -4-
<PAGE>   9
                 (5)      No Material Adverse Change in Business.  Since the
         respective dates as of which information is given in the Registration
         Statement and the Prospectus, except as otherwise stated therein, (A)
         there has been no material adverse change in the condition, financial
         or otherwise, or in the earnings or business affairs of the Company
         and its subsidiaries considered as one enterprise (a "Material Adverse
         Effect"), whether or not arising in the ordinary course of business,
         and (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) 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 incorporated 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
         Underwriting Agreement and the applicable Terms Agreement.  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, is set forth on
         Schedule A hereto (each, a "Subsidiary" and, collectively, the
         "Subsidiaries").  Each Subsidiary, other than Weatherford Enterra
         U.S., Limited Partnership and Weatherford Enterra Compression Company,
         L.P., has been duly incorporated and is validly existing as a
         corporation in good standing under the laws of the jurisdiction of its
         incorporation, has corporate power and authority to own, lease and
         operate its properties and to conduct its business as described in the
         Prospectus and is duly qualified as a foreign corporation 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 or as set forth on Schedule
         A hereto, all of the issued and outstanding shares of  capital stock
         of, or, as applicable, limited partnership interests in, each
         Subsidiary have been duly authorized and are validly issued, fully
         paid and non-assessable and are owned by the Company, directly or
         through Subsidiaries, free and clear of any security interest,
         mortgage, pledge, lien, encumbrance, claim or equity.  None of the
         outstanding shares of capital stock of, or, as applicable, limited
         partnership interests in, any Subsidiary was issued in violation of
         preemptive or other similar rights arising by operation of law, under
         the charter or by-laws or, as applicable, limited partnership
         agreement of any Subsidiary or under any agreement to which the
         Company or any Subsidiary is a party, or otherwise.  Weatherford
         Enterra U.S., Limited Partnership and Weatherford Enterra Compression
         Company, L.P. are limited partnerships duly formed pursuant to the
         provisions of the





                                      -5-
<PAGE>   10
         Louisiana Partnership Act and the Delaware Revised Uniform Limited
         Partnership Act, respectively, and are validly existing as limited
         partnerships under the laws of such states and are duly qualified to
         transact business as foreign limited partnerships and are validly
         existing  in each other jurisdiction in which such qualification is
         required, except where the failure to so qualify or be in existence
         would not result in a Material Adverse Effect.

                 (8)      Authorization of this Underwriting Agreement and
         Terms Agreement.  This Underwriting Agreement has been, and the
         applicable Terms Agreement as of the date thereof will have been, duly
         authorized, executed and delivered by the Company.

                 (9)      Authorization of Debt Securities.  The Underwritten
         Securities have been, or as of the date of the applicable Terms
         Agreement will have been, duly authorized by the Company for issuance
         and sale pursuant to this Underwriting Agreement and such Terms
         Agreement. Such Underwritten Securities, when issued and authenticated
         in the manner provided for in the Indenture and delivered against
         payment of the consideration therefor specified in such Terms
         Agreement, will constitute valid and legally binding obligations of
         the Company, enforceable against the Company in accordance with their
         terms, except as the enforcement thereof may be limited by bankruptcy,
         insolvency, reorganization, moratorium or other similar laws relating
         to or affecting creditors' rights generally or by general equitable
         principles, and except further as enforcement thereof may be limited
         by (A) requirements that a claim with respect to any Debt Securities
         denominated other than in U.S.  dollars (or a foreign or composite
         currency judgment in respect of such claim) be converted into U.S.
         dollars at a rate of exchange prevailing on a date determined pursuant
         to applicable law or (B) governmental authority to limit, delay or
         prohibit the making of payments outside the United States.  Such
         Underwritten Securities will be substantially in the form contemplated
         by, and each registered holder thereof is entitled to the benefits of,
         the Indenture.

                 (10)     Authorization of the Indenture. The Indenture has
         been, or prior to the issuance of the Debt Securities thereunder will
         have been, duly authorized, executed and delivered by the Company and,
         upon such authorization, execution and delivery, will constitute a
         valid and legally binding agreement of the Company, enforceable
         against the Company in accordance with its terms, except as the
         enforcement thereof may be limited by bankruptcy, insolvency,
         reorganization, moratorium or other similar laws relating to or
         affecting creditors' rights generally or by general equitable
         principles, and except further as enforcement thereof may be limited
         by (A) requirements that a claim with respect to any Debt Securities
         denominated other than in U.S. dollars (or a foreign or composite
         currency judgment in respect of such claim) be converted into U.S.
         dollars at a rate of exchange prevailing on a date determined pursuant
         to applicable law or (B) governmental authority to limit, delay or
         prohibit the making of payments outside the United States.

                 (11)     Descriptions of the Underwritten Securities and
         Indenture.  The Underwritten Securities being sold pursuant to the
         applicable Terms Agreement and the Indenture, as of the date of the
         Prospectus, will conform in all material respects to the statements
         relating thereto contained in the Prospectus and will be in
         substantially the form filed or incorporated by reference, as the case
         may be, as an exhibit to the





                                      -6-
<PAGE>   11
         Registration Statement.

                 (12)     Absence of Defaults and Conflicts.  Neither the
         Company nor any of the Subsidiaries is in violation of its charter or
         by-laws, or, as applicable, limited partnership agreement, or in
         default in the performance or observance of any 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 of the
         Subsidiaries 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 that would not result in a Material Adverse
         Effect.  The execution, delivery and performance of this Underwriting
         Agreement, the applicable Terms Agreement and the Indenture and any
         other agreement or instrument entered into or to be entered into by
         the Company in connection with the transactions contemplated hereby or
         thereby and the consummation of the transactions contemplated herein
         or therein and in the Registration Statement and the Prospectus
         (including the issuance and sale of the Underwritten Securities and
         the use of the proceeds from the sale of the Underwritten Securities
         as described under the caption "Use of Proceeds") and compliance by
         the Company with its obligations hereunder and thereunder 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, or, as
         applicable, limited partnership agreement, 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 except
         where such violation would not result in a Material Adverse Effect.
         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.

                 (13)     Absence of Proceedings.  There is no action, suit or
         proceeding 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 thereof
         which is required to be disclosed in the Registration Statement and
         the Prospectus (other than as disclosed 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 Underwriting Agreement, the applicable Terms Agreement or the
         Indenture or the transactions contemplated herein or therein.  All
         pending legal or governmental proceedings to which the Company or any
         subsidiary thereof is a party or of which any of their respective
         assets, properties or operations is the subject which are not
         described





                                      -7-
<PAGE>   12
         in the Registration Statement and the Prospectus, including ordinary
         routine litigation incidental to the business, considered in the
         aggregate, 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 Prospectus or the documents incorporated by reference
         therein or to be filed as exhibits thereto which have not been so
         described or filed as required.

                 (15)     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 Underwriting Agreement,  the applicable
         Terms Agreement or the Indenture or in connection with the
         transactions contemplated under this Underwriting Agreement, such
         Terms Agreement or the Indenture, except as may be required under the
         1933 Act or the 1933 Act Regulations or under state securities laws.

                 (16)     Possession of Licenses and Permits.  The Company and
         the Subsidiaries 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 to possess such Governmental Licenses
         would not, singly or in the aggregate, result in a Material Adverse
         Effect.  The Company and the Subsidiaries 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 where 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 of the Subsidiaries has
         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.

                 (17)     Investment Company Act.  The Company is not, and upon
         the issuance and sale of the Underwritten Securities as herein
         contemplated and the application of the net proceeds therefrom as
         described in the Prospectus will not be, an "investment company"
         within the meaning of the Investment Company Act of 1940, as amended
         (the "1940 Act").

                 (18)     Compliance with Florida Statute.  The Company has
         complied with, or is exempt from, the provisions of Section 517.075 of
         the Florida statutes and the rules and regulations thereunder.

         (b)     Officers' Certificates.  Any certificate signed by any officer
of the Company or any Subsidiary and delivered to any Underwriter or to counsel
for the Underwriters in connection with the offering of the Underwritten
Securities shall be deemed a representation and





                                      -8-
<PAGE>   13
warranty by the Company to each Underwriter as to the matters covered thereby
on the date of such certificate and, unless subsequently amended or
supplemented, at the Closing Time.

         SECTION 2.       Sale and Delivery to Underwriters; Closing.

         (a)     Underwritten Securities.  The several commitments of the
Underwriters to purchase the Underwritten Securities pursuant to the applicable
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)     Payment.  Payment of the purchase price for, and delivery of,
any Underwritten Securities to be purchased by the Underwriters shall be made
at the place set forth in the applicable Terms Agreement, or at such other
place as shall be agreed upon by Merrill Lynch and the Company, at 9:00 A.M.
(Houston time) on the third (fourth, if the pricing occurs after 3:30 P.M.
(Houston time) on any given day) business day following the date of the
applicable Terms Agreement (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 Merrill Lynch and the Company (each
such time and date of payment and delivery being herein called "Closing Time").

         Payment shall be made to the Company by wire transfer of same day
funds into an account or accounts designated by the Company, or by certified or
official bank check or checks drawn in same day funds payable to the order of
the Company, against delivery to Merrill Lynch for the respective accounts of
the Underwriters of the Underwritten Securities to be purchased by them.  It is
understood that each Underwriter has authorized Merrill Lynch, for its account,
to accept delivery of, receipt for, and make payment of the purchase price for,
the Underwritten Securities which it has severally agreed to purchase.  Merrill
Lynch, individually and not as representative of the Underwriters, may (but
shall not be obligated to) make payment of the purchase price for the
Underwritten Securities to be purchased by any Underwriter whose check has not
been received by the Closing Time, but such payment shall not relieve such
Underwriter from its obligations hereunder.

         (c)     Denominations; Registration.  The Underwritten Securities
shall be in such denominations and registered in such names as Merrill Lynch
may request in writing at least two full business day prior to the Closing
Time.  The Underwritten Securities will be made available for examination and
packaging by Merrill Lynch in The City of New York not later than 10:00 A.M.
(Eastern time) on the business day prior to the Closing Time.

         SECTION 3.       Covenants of the Company.  The Company covenants and
agrees with Merrill Lynch and with each Underwriter participating in the
offering of Underwritten 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 of the 1933 Act Regulations and/or Rule 434 of the
1933 Act Regulations, if and as applicable, and will notify the
Representative(s) 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





                                      -9-
<PAGE>   14
amendment to the Prospectus, (ii) the receipt of any comments from the
Commission relating to the Registration Statement or the Prospectus, (iii) any
request by the Commission for any amendment to the Registration Statement or
any amendment or supplement to the Prospectus or for additional information
related thereto, 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 Underwritten Securities for offering or
sale in any jurisdiction, or of the initiation or threatening (to the extent
the Company has knowledge) 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
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 Merrill Lynch
notice of its intention to file or prepare any amendment to the Registration
Statement (including any filing under Rule 462(b) of the 1933 Act Regulations),
any Term Sheet or any amendment, supplement or revision to either the
prospectus included in the Registration Statement at the time it became
effective or to the Prospectus, whether pursuant to the 1933 Act, the 1934 Act
or otherwise, will furnish Merrill Lynch 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 Merrill Lynch or
counsel for the Underwriters shall reasonably object.

         (c)     Delivery of Registration Statements.  The Company has
furnished or will deliver to Merrill Lynch and counsel for the Underwriters,
without charge, signed or conformed 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) and signed or conformed copies
of all consents and reports of accountants, and will also deliver to Merrill
Lynch, without charge, a conformed copy of the Registration Statement as
originally filed and of each amendment thereto (without exhibits) for each of
the Underwriters.  The copies of the Registration Statement and each amendment
thereto furnished to the 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 Prospectuses.  The Company will deliver to each
Underwriter, without charge, as many copies of each preliminary prospectus as
such Underwriter may reasonably request, and the Company hereby consents to the
use of such copies for purposes permitted by the 1933 Act.  The Company will
furnish to each Underwriter, without charge, during the period when the
Prospectus is required to be delivered under the 1933 Act or the 1934 Act, such
number of copies of the Prospectus as such Underwriter may reasonably request.
The Prospectus and any amendments or supplements thereto furnished to the
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





                                      -10-
<PAGE>   15
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
Underwritten Securities as contemplated in this Underwriting Agreement and the
applicable Terms Agreement and in the Registration Statement and the
Prospectus. If at any time when the Prospectus is required by the 1933 Act or
the 1934 Act to be delivered in connection with sales of the Underwritten
Securities, any event shall occur or condition shall exist as a result of which
it is necessary, in the opinion of counsel for the 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 the Prospectus in
order that the Prospectus will not contain an untrue statement of a material
fact or omit to state a material fact necessary in order to make the statements
therein, in the light of the circumstances existing at the time it is delivered
to a purchaser, not misleading 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 the 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 Prospectus comply with such requirements, and the
Company will furnish to the Underwriters, without charge, such number of copies
of such amendment or supplement as the Underwriters may reasonably request.

         (f)     Blue Sky Qualifications.  The Company will use its best
efforts, in cooperation with the Underwriters, to qualify the Underwritten
Securities for offering and sale under the applicable securities laws of such
states and other jurisdictions (domestic or foreign) as Merrill Lynch may
designate and to maintain such qualifications in effect for as long as required
for distribution of the Underwritten 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 Underwritten
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 as long as required for the distribution of the
Underwritten Securities.

         (g)     Earnings Statement.  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 Underwritten Securities in the manner
specified in the Prospectus under "Use of Proceeds."

         (i)     Restriction on Sale of Securities.  Between the date of the
applicable Terms Agreement and the Closing Time or such other date specified in
such Terms Agreement, the Company will not, without the prior written consent
of Merrill Lynch, directly or indirectly, issue, sell, offer to sell, grant any
option for the sale of, or otherwise dispose of, the securities





                                      -11-
<PAGE>   16
specified in such Terms Agreement.

         (j)     Reporting Requirements.  The Company, during the period when
the Prospectus is 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 Underwriting Agreement or the
applicable 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 preparation, printing
and delivery to the Underwriters of this Underwriting Agreement, any Terms
Agreement, any Agreement among Underwriters, the Indenture and such other
documents as may be required in connection with the offering, purchase, sale
and delivery of the Underwritten Securities, (iii) the preparation, issuance
and delivery of the Underwritten Securities to the Underwriters, (iv) the fees
and disbursements of the Company's counsel, accountants and other advisors or
agents (including transfer agents and registrars), as well as the fees and
disbursements of the Trustee and its counsel, (v) the qualification of the
Underwritten 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 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 Underwriters of copies of each preliminary
prospectus, any Term Sheet, and the Prospectus and any amendments or
supplements thereto, and (vii) the fees charged by nationally recognized
statistical rating organizations for the rating of the Underwritten Securities.

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

         SECTION 5.       Conditions of Underwriters' Obligations.  The
obligations of the Underwriters to purchase and pay for the Underwritten
Securities pursuant to the applicable 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 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, including any Rule 462 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 Underwriters.  A prospectus
containing information relating to the description of the Underwritten
Securities, the specific method of distribution and





                                      -12-
<PAGE>   17
similar matters shall have been filed with the Commission in accordance with
Rule 424(b)(1), (2), (3), (4) or (5) of the 1933 Act Regulations, as applicable
(or any required post-effective amendment providing such information shall have
been filed and declared effective in accordance with the requirements of Rule
430A of the 1933 Act Regulations), 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) of the 1933 Act Regulations.

         (b)     Opinion of Counsel for Company.  At Closing Time, Merrill
Lynch shall have received the favorable opinion, dated as of Closing Time, of
Fulbright & Jaworski L.L.P., counsel for the Company, substantially in the form
attached hereto as Exhibit B, together with signed or reproduced copies of such
letter for each of the other Underwriters.  Such counsel may  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 General Counsel.  At Closing Time, Merrill Lynch
shall have received the favorable opinion, dated as of Closing Time, of H.
Suzanne Thomas, Senior Vice President, Secretary and General Counsel of the
Company, substantially in the form attached hereto as Exhibit C, together with
signed or reproduced copies of such letter for each of the other Underwriters.
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 Texas, 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 state that, insofar as such opinion involves factual matters, she
has relied, to the extent she deems proper, upon certificates of officers of
the Company and the Subsidiaries and certificates of public officials.

         (d)     Opinion of Counsel for Underwriters.  At Closing Time, Merrill
Lynch shall have received the favorable opinion, dated as of Closing Time, of
Vinson & Elkins L.L.P., counsel for the Underwriters, together with signed or
reproduced copies of such letter for each of the other Underwriters, covering
such matters as Merrill Lynch may reasonably request.  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 Texas, 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.

         (e)     Officers' Certificate.  At Closing Time, there shall not have
been, since the date of the applicable Terms Agreement or since the respective
dates as of which information is given in the Prospectus, any material adverse
change in the condition, financial or otherwise, or in the earnings or business
affairs of the Company and its subsidiaries considered as one enterprise,
whether or not arising in the ordinary course of business, and Merrill Lynch
shall have received a certificate of the President or a Vice President of the
Company and of 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 are true and correct with the same force and effect as though
expressly made at and





                                      -13-
<PAGE>   18
as of the Closing Time, (iii) the Company has complied with all agreements and
satisfied all conditions on its part contained in this Agreement to be
performed or satisfied at or prior to the Closing Time, and (iv) no stop order
suspending the effectiveness of the Registration Statement has been issued and
no proceedings for that purpose have been initiated or, to their knowledge,
threatened by the Commission.

         (f)     Accountant's Comfort Letter.  At the time of the execution of
the applicable Terms Agreement, Merrill Lynch shall have received from Arthur
Andersen LLP a letter dated such date, in form and substance satisfactory to
Merrill Lynch, covering the matters set forth in Exhibit D, together with
signed or reproduced copies of such letter for each of the other 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 contained in the Registration
Statement and the Prospectus.

         (g)     Bring-down Comfort Letter.  At Closing Time, Merrill Lynch
shall have received from Arthur Andersen LLP a letter, dated as of Closing
Time, to the effect that it reaffirms the statements made in the letter
furnished pursuant to subsection (f) 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.

         (h)     Ratings.  At Closing Time, the Underwritten Securities shall
have the ratings accorded by any "nationally recognized statistical rating
organization", as defined by the Commission for purposes of Rule 436(g)(2) of
the 1933 Act Regulations, if and as specified in the applicable Terms
Agreement, and the Company shall have delivered to Merrill Lynch a letter,
dated as of such date, from such rating organization, or other evidence
satisfactory to Merrill Lynch, confirming that the Underwritten Securities have
such ratings.  Since the time of execution of such Terms Agreement, there shall
not have occurred a downgrading in the rating assigned to the Underwritten
Securities or any of the Company's other securities by any such rating
organization, and no such rating organization shall have publicly announced
that it has under surveillance or review, with possible negative implications,
its rating of the Underwritten Securities or any of the Company's other
securities.

         (i)     Additional Documents.  At Closing Time, counsel for the
Underwriters shall have been furnished with such documents and opinions as they
may reasonably require for the purpose of enabling them to pass upon the
issuance and sale of the Underwritten 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
Underwritten Securities as herein contemplated shall be reasonably satisfactory
in form and substance to Merrill Lynch and counsel for the Underwriters.

         (j)     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 applicable Terms Agreement may be terminated by Merrill Lynch by
notice to the Company at any time at or prior to the Closing Time, and such
termination shall be without liability of any party to any other party except
as provided in Section 4 and except that Sections 6 and 7 shall survive any
such termination and remain in full force and effect.





                                      -14-
<PAGE>   19
         SECTION 6.       Indemnification.

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

                 (i)      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 contained in
         any preliminary prospectus or the Prospectus (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;

                 (ii)     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

                 (iii)    against any and all expense whatsoever, as incurred
         (including the fees and disbursements of counsel chosen by Merrill
         Lynch), 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
Underwriter through Merrill Lynch expressly for use in the Registration
Statement (or any amendment thereto), including the 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); and provided further, however, that this indemnity agreement, as to
any preliminary prospectus or preliminary prospectus supplement, shall not
inure to the benefit of any Underwriter (or any person controlling such
Underwriter) on account of any loss, claim, damage, liability or expense
arising from the sale of Underwritten Securities to any person by such
Underwriter if such Underwriter failed to send or give a copy of the
Prospectus, as the same may be supplemented or amended, to such person within
the time required by the 1933 Act, and the untrue statement or alleged untrue
statement or omission or alleged omission of a material fact in such
preliminary prospectus or preliminary





                                      -15-
<PAGE>   20
prospectus supplement was corrected in the Prospectus (as so supplemented or
amended), unless such failure resulted from noncompliance by the Company with
Section 3(a).

         (b)     Indemnification of Company, Directors and Officers.  Each
Underwriter severally agrees to indemnify and hold harmless the Company, each
of its directors, each of the 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 Underwriter expressly for use in
the Registration Statement (or any amendment thereto) or such preliminary
prospectus or the Prospectus (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
Merrill Lynch, 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 reasonable fees and expenses of counsel,
such indemnifying party agrees that it shall be liable for any settlement of
the nature contemplated by Section 6(a)(ii) effected without its written





                                      -16-
<PAGE>   21
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 in accordance with such
request prior to the date of such settlement.  Notwithstanding the immediately
preceding sentence, if at any time an indemnified party shall have requested an
indemnifying party to reimburse the indemnified party for reasonable fees and
expenses of counsel, an indemnifying party shall not be liable for any
settlement of the nature contemplated by Section 6(a)(ii) effected without its
consent if such indemnifying party, prior to the date of settlement, (i)
reimburses such indemnified party in accordance with such request to the extent
such indemnifying party considers such request to be reasonable and (ii)
provides written notice in reasonable detail to the indemnified party of the
reasons such indemnifying party considers the unpaid balance as unreasonable.

         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
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 Underwriters, on the other hand, from the
offering of the Underwritten Securities pursuant to the applicable 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 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 Underwriters, on the other hand, in connection with the offering of the
Underwritten Securities pursuant to the applicable Terms Agreement shall be
deemed to be in the same respective proportions as the total net proceeds from
the offering of such Underwritten Securities (before deducting expenses)
received by the Company and the total underwriting discount received by the
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 initial public offering price of such Underwritten Securities as set
forth on such cover or corresponding location on the Term Sheet, as applicable.

         The relative fault of the Company, on the one hand, and the
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 Underwriters and the parties'
relative intent, knowledge, access to information and opportunity to correct or
prevent such statement or omission.

         The Company and the 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





                                      -17-
<PAGE>   22
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 Underwriter shall
be required to contribute any amount in excess of the amount by which the total
price at which the Underwritten Securities underwritten by it and distributed
to the public were offered to the public exceeds the amount of any damages
which such Underwriter has otherwise been required to pay by reason of such
untrue or alleged untrue statement or omission or alleged omission.

         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
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 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 Underwriters'
respective obligations to contribute pursuant to this Section 7 are several in
proportion to the aggregate principal amount of Underwritten Securities set
forth opposite their respective names in the applicable Terms Agreement, and
not joint.

         SECTION 8.       Representations, Warranties and Agreements to Survive
Delivery.  All representations, warranties and agreements contained in this
Underwriting Agreement or the applicable Terms Agreement or in certificates of
officers of the Company or any Subsidiary submitted pursuant hereto or thereto
shall remain operative and in full force and effect, regardless of any
investigation made by or on behalf of any Underwriter or controlling person, or
by or on behalf of the Company, and shall survive delivery of and payment for
the Underwritten Securities.

         SECTION 9.       Termination.

         (a)     Underwriting Agreement.  This Underwriting Agreement
(excluding the applicable Terms Agreement) may be terminated for any reason at
any time by the Company or by Merrill Lynch upon the giving of 30 days' prior
written notice of such termination to the other party hereto.

         (b)     Terms Agreement.  Merrill Lynch may terminate the applicable
Terms Agreement, by notice to the Company, at any time at or prior to the
Closing Time, if (i) there has been, since the time of execution of such Terms
Agreement or since the respective dates as of which





                                      -18-
<PAGE>   23
information is given in the Prospectus, any material adverse change in the
condition, financial or otherwise, or in the earnings or business affairs of
the Company and its 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, if
the Underwritten Securities are denominated or payable in, or indexed to, one
or more foreign or composite currencies, 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 Merrill
Lynch, impracticable to market the Underwritten Securities or to enforce
contracts for the sale of the Underwritten Securities, or (iii) trading in any
securities of the Company has been suspended or limited by the Commission or
the New York Stock Exchange, 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, or minimum or maximum prices for trading have been
fixed, or maximum ranges for prices have been required, by either of said
exchanges or by such system or by order of the Commission, the NASD or any
other governmental authority, or (iv) a banking moratorium has been declared by
either Federal or New York or Texas authorities or, if the Underwritten
Securities are denominated or payable in, or indexed to, one or more foreign or
composite currencies, by the relevant authorities in the related foreign
country or countries.

         (c)     Liabilities.  If this Underwriting Agreement or the applicable
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 6 and 7 shall survive
such termination and remain in full force and effect.

         SECTION 10.      Default by One or More of the Underwriters.  If one
or more of the Underwriters shall fail at the Closing Time to purchase the
Underwritten Securities which it or they are obligated to purchase under the
applicable Terms Agreement (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 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 aggregate principal amount of Defaulted Securities does
not exceed 10% of the aggregate principal amount of Underwritten Securities to
be purchased on such date pursuant to such Terms Agreement, the non-defaulting
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 Agreement bear to the underwriting obligations of
all non-defaulting Underwriters, or

         (b)     if the aggregate principal amount of Defaulted Securities
exceeds 10% of the aggregate principal amount of Underwritten Securities to be
purchased on such date pursuant to such Terms Agreement, such Terms Agreement
shall terminate without liability on the part of any non-defaulting
Underwriter.





                                      -19-
<PAGE>   24
         No action taken pursuant to this Section 10 shall relieve any
defaulting Underwriter from liability in respect of its default.

         In the event of any such default which does not result in a
termination of the applicable Terms Agreement, either Merrill Lynch or the
Company shall have the right to postpone the Closing Time for a period not
exceeding seven days in order to effect any required changes in the
Registration Statement or the Prospectus or in any other documents or
arrangements.

         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 Underwriters shall be directed to Merrill Lynch at World Financial Center,
North Tower, New York, New York 10281-1209, attention of the Debt Syndicate
Department; and notices to the Company shall be directed to it at 1360 Post Oak
Boulevard, Suite 1000, Houston, Texas  77056, attention of the Chief Financial
Officer.

         SECTION 12.      Parties.  This Underwriting Agreement and the
applicable Terms Agreement shall each inure to the benefit of and be binding
upon the Company, Merrill Lynch and, upon execution of such Terms Agreement,
any other Underwriters and their respective successors.  Nothing expressed or
mentioned in this Underwriting Agreement or such Terms Agreement is intended or
shall be construed to give any person, firm or corporation, other than the
Underwriters, the Company and its 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 Underwriting Agreement or such Terms Agreement or any
provision herein or therein contained.  This Underwriting Agreement and such
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 Underwritten
Securities from any Underwriter shall be deemed to be a successor by reason
merely of such purchase.

         SECTION 13.      GOVERNING LAW.  THIS UNDERWRITING AGREEMENT AND ANY
APPLICABLE TERMS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE
WITH THE LAWS OF THE STATE OF NEW YORK.

         SECTION 14.      Effect of Headings.  The Article and Section headings
herein are for convenience only and shall not affect the construction hereof.





                                      -20-
<PAGE>   25
         If the foregoing is in accordance with your understanding of our
agreement, please sign and return to the Company a counterpart hereof,
whereupon this Underwriting Agreement, along with all counterparts, will become
a binding agreement between Merrill Lynch and the Company in accordance with
its terms.

                                 Very truly yours,

                                 WEATHERFORD ENTERRA, INC.


                                 By:   /s/ Norman W. Nolen                      
                                    --------------------------------------------
                                         Name:   Norman W. Nolen
                                         Title:  Senior Vice President, Chief 
                                                 Financial Officer and Treasurer



CONFIRMED AND ACCEPTED,
  as of the date first above written:
MERRILL LYNCH & CO.
MERRILL LYNCH, PIERCE, FENNER & SMITH
            INCORPORATED

By  Merrill Lynch, Pierce, Fenner & Smith 
                Incorporated



By:  /s/ Christopher D. Mize               
   ------------------------------------------
         Authorized Signatory





                                      -21-
<PAGE>   26
                                                                      Schedule A


                           WEATHERFORD ENTERRA, INC.

                            SIGNIFICANT SUBSIDIARIES


CRC-Evans Pipeline International, Inc.
Weatherford U.S., Inc.
CRC-Evans Automatic Welding Limited
Weatherford Enterra U.S., Limited Partnership
Enterra Petroleum Equipment Group, Inc.
Enterra Compression Company
Enterra Compression Investment Company
Weatherford Enterra Compression Company, L.P.
Weatherford/Lamb, Inc.
Weatherford Enterra Canada Ltd.
Weatherford Holding GmbH
Weatherford Oil Tool GmbH





                                  Schedule A-1
<PAGE>   27
                                                                       Exhibit A



                           WEATHERFORD ENTERRA, INC.
                             a Delaware corporation

                         __ % Notes due ______________,

                                TERMS AGREEMENT


                                                          ________________, 1996


To:      Weatherford Enterra, Inc.
         Suite 1000
         1360 Post Oak Boulevard
         Houston, Texas  77056

Ladies and Gentlemen:

         We understand that Weatherford Enterra, Inc., a Delaware corporation
(the "Company"), proposes to issue and sell $          aggregate principal
amount of its unsecured debt securities (the "Underwritten Securities").
Subject to the terms and conditions set forth or incorporated by reference
herein, we [the underwriters named below (the "Underwriters")] offer to
purchase [,severally and not jointly,] the principal amount of Underwritten
Securities opposite our names set forth below at the purchase price set forth
below.





                                      A-2
<PAGE>   28
<TABLE>
<CAPTION>
                                                   Principal Amount
Underwriter                                        of Underwritten Securities
- -----------                                        --------------------------
<S>                                                <C>
                                                   _______________
Total                                              [$]                          
                                                   ==========================
</TABLE>

         The Underwritten Securities shall have the following terms:

Title:
Rank:
Ratings:
Aggregate principal amount:
Denominations:
Currency of payment:
Interest rate or formula:
Interest payment dates:
Regular record dates:
Stated maturity date:
Redemption provisions:
Sinking fund requirements:





                                      A-3
<PAGE>   29
Fixed or Variable Price Offering:  [Fixed] [Variable] Price Offering
         If Fixed Price Offering, initial public offering price per share:
         % of the principal amount, plus accrued interest [amortized original
         issue discount], if any, from ____________.
Purchase price per note:  ____% of principal amount, plus accrued interest
         [amortized original issue discount], if any, from ___________ (payable
         in next [same] day funds).
Form:
Other terms and conditions:
Closing time, date and location:

         All of the provisions contained in the document attached as Annex I
hereto entitled "Weatherford Enterra, Inc.--Debt Securities--Underwriting
Agreement" are hereby incorporated by reference in their entirety herein and
shall be deemed to be a part of this Terms Agreement to the same extent as if
such provisions had been set forth in full herein.  Unless otherwise defined
herein, terms defined in such document are used herein as therein defined.


                                    Very truly yours,

                                    MERRILL LYNCH & CO.

                                    MERRILL LYNCH, PIERCE, FENNER & SMITH
                                                INCORPORATED

                                       By Merrill Lynch, Pierce, Fenner & Smith,
                                                      Incorporated


                                    By:
                                       -----------------------------------------
                                    Authorized Signatory

                                    [Acting on behalf of itself and the other 
                                      named Underwriters]

Accepted:

WEATHERFORD ENTERRA, INC.


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





                                      A-4
<PAGE>   30
                                                                       Exhibit B


                      FORM OF OPINION OF COMPANY'S COUNSEL
                          TO BE DELIVERED PURSUANT TO
                                  SECTION 5(b)


         (1)     The Company has been duly incorporated and is validly existing
as a corporation in good standing under the laws of the State of Delaware.

         (2)     The Company 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, the Underwriting Agreement and the Terms Agreement.

         (3)     The Company is duly qualified to transact business as a
foreign corporation and is in good standing in each jurisdiction in which such
qualification is required, except where the failure to so qualify or be in good
standing would not result in a Material Adverse Effect.

         (4)     The Underwriting Agreement and the Terms Agreement have been
duly authorized, executed and delivered by the Company.

         (5)     The Underwritten Securities have been duly authorized by the
Company for issuance and sale pursuant to the Underwriting Agreement and the
Terms Agreement.  The Underwritten Securities, when issued and authenticated in
the manner provided for in the Indenture and delivered pursuant to the
provisions of the Underwriting Agreement and the Terms Agreement against
payment of the consideration therefor specified in the Terms Agreement, will
constitute valid and legally binding obligations of the Company, enforceable
against the Company in accordance with their terms, except to the extent that
(a) such enforcement may be subject to applicable federal or state bankruptcy,
insolvency, reorganization, moratorium, fraudulent conveyance or other laws or
court decisions relating to or affecting creditors' rights generally, (b) such
enforcement may be limited by equitable principles of general applicability,
including without limitation concepts of materiality, reasonableness, good
faith and fair dealing, equitable subordination and the possible unavailability
of specific performance or injunctive relief (regardless of whether considered
in a proceeding in equity or at law or whether codified by statute) and (c)
such enforcement may be limited by (I) requirements that a claim with respect
to any Debt Securities denominated other than in U.S. dollars (or a foreign or
composite currency judgment in respect of such claim) be converted into U.S.
dollars at a rate of exchange prevailing on a date determined pursuant to
applicable law or (II) governmental authority to limit, delay or prohibit the
making of payments outside the United States.  The Underwritten Securities are
in the form contemplated by, and each registered holder thereof is entitled to
the benefits of, the Indenture.

         (6)     The Indenture has been duly authorized, executed and delivered
by the Company and (assuming due authorization, execution and delivery thereof
by the Trustee) constitutes a valid and legally binding obligation of the
Company, enforceable against the Company in accordance with its terms, except
to the extent that (a) such enforcement may be subject to
<PAGE>   31
applicable federal or state bankruptcy, insolvency, reorganization, moratorium,
fraudulent conveyance or other laws or court decisions relating to or affecting
creditors' rights generally, (b) such enforcement may be limited by equitable
principles of general applicability, including without limitation concepts of
materiality, reasonableness, good faith and fair dealing, equitable
subordination and the possible unavailability of specific performance or
injunctive relief (regardless of whether considered in a proceeding in equity
or at law or whether codified by statute) and (c) such enforcement may be
limited by (I) requirements that a claim with respect to any Debt Securities
denominated other than in U.S. dollars (or a foreign or composite currency
judgment in respect of such claim) be converted into U.S. dollars at a rate of
exchange prevailing on a date determined pursuant to applicable law or (II)
governmental authority to limit, delay or prohibit the making of payments
outside the United States.

         (7)     The Underwritten Securities and the Indenture conform in all
material respects to the descriptions thereof contained in the Prospectus and
are in substantially the form filed as an exhibit to the Registration
Statement.

         (8)     The information in the Prospectus under "Description of
Underwritten Securities," to the extent that it constitutes matters of law,
summaries of legal matters or legal conclusions, has been reviewed by such
counsel and is correct in all material respects.

         (9)     To the best of such counsel's knowledge, 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 threatened,
against or affecting the Company or any subsidiary thereof which is required to
be disclosed in the Registration Statement and the Prospectus (other than as
stated therein).

         (10)    To the best of such counsel's knowledge, there are no
contracts, indentures, mortgages, loan agreements, notes, leases or other
instruments required to be described or referred to in the Registration
Statement or to be filed as exhibits thereto other than those described or
referred to therein or filed or incorporated by reference as exhibits thereto,
and the descriptions thereof or references thereto are correct in all material
respects.

         (11)    The Registration Statement is effective under the 1933 Act.
Any required filing of the Prospectus pursuant to Rule 424(b) has been made in
the manner and within the time period required by Rule 424(b).  To the best of
such counsel's knowledge, no stop order suspending the effectiveness of the
Registration Statement has been issued under the 1933 Act or proceedings
therefor initiated or threatened by the Commission.

         (12)    The Registration Statement, [the Rule 430A Information,] [the
Rule 434 Information,] the Prospectus, excluding the documents incorporated by
reference therein, and each amendment or supplement to the Registration
Statement and Prospectus, excluding the documents incorporated by reference
therein, as of their respective effective or issue dates (other than the
financial statements, including the notes thereto, and financial statement
schedules and other financial, accounting and statistical information included
therein and the Trustee's Statement of Eligibility on Form T-1 (the "Form
T-1"), as to which no opinion need be rendered) complied as to form in all
material respects with the requirements of the 1933 Act and the 1933 Act
Regulations.
<PAGE>   32
         (13)    The documents incorporated by reference in the Prospectus
(other than the financial statements, including the notes thereto, and
financial statement schedules and other financial, accounting and statistical
information included therein, as to which no opinion need be rendered), when
they were filed with the Commission, complied as to form in all material
respects with the requirements of the 1934 Act and the 1934 Act Regulations.

         (14)    No filing, authorization, approval, consent, license, order,
registration, qualification or decree of or with any court or governmental
authority or agency having jurisdiction over the Company is required for the
performance by the Company of its obligations under the Underwriting Agreement,
the Terms Agreement or the Indenture or in connection with the transactions
contemplated therein except for (i) such as have been made or obtained under
the 1933 Act, the 1933 Act Regulations, the 1939 Act and the 1939 Act
Regulations or (ii) such as may be required under state securities or blue sky
laws (as to which no opinion need be rendered).

         (15)    The Company is not an "investment company" within the meaning
of the Investment Company Act of 1940, as amended (the "1940 Act").

         Nothing has come to the attention of such counsel that would lead such
counsel to believe that the Registration Statement (except for financial
statements and schedules and other financial data included therein and for the
Form T-1, as to which we make no statement), at the time the Registration
Statement or any amendment thereto became effective or at the date of the
applicable Terms Agreement, contained an untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary to
make the statements therein not misleading or that the Prospectus or any
amendment or supplement thereto (except for financial statements and schedules
and other financial data included therein as to which such counsel makes no
statement), at the time the Prospectus was issued, at the time any such amended
or supplemented prospectus was issued or at the Closing Time, included or
includes an untrue statement of a material fact or omitted or omits 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.

         In rendering such opinion, such counsel may rely, as to matters of
fact (but not as to legal conclusions), to the extent they deem proper, on
certificates of responsible officers of the Company and public officials.  Such
opinion shall not state that it is to be governed or qualified by, or that it
is otherwise subject to, any treatise, written policy or other document
relating to legal opinions, including, without limitation, the Legal Opinion
Accord of the ABA Section of Business Law (1991).
<PAGE>   33
                                                                       Exhibit C


                  FORM OF OPINION OF COMPANY'S GENERAL COUNSEL
                          TO BE DELIVERED PURSUANT TO
                                  SECTION 5(c)



         (1)     Each Subsidiary other than Weatherford Enterra U.S., Limited
Partnership and Weatherford Enterra Compression Company, L.P. has been duly
incorporated and is validly existing as a corporation in good standing under
the laws of its jurisdiction of incorporation, has corporate power and
authority to own, lease and operate its properties and to conduct its business
as described in the Prospectus and, to the best of her knowledge, is duly
qualified to transact business as a foreign corporation 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.  All of the issued and outstanding shares of capital
stock of, or, as applicable, limited partnership interests in, each Subsidiary
have been duly authorized and are validly issued, fully paid and nonassessable
and, to the best of her knowledge are owned by the Company, directly or through
Subsidiaries, free and clear of any security interest, mortgage, pledge, lien,
encumbrance, claim or equity.  None of the outstanding shares of capital stock
of, or, as applicable, limited partnership interests in, any Subsidiary was
issued in violation of preemptive or other similar rights.  Weatherford Enterra
U.S., Limited Partnership and Weatherford Enterra Compression Company, L.P. are
limited partnerships duly formed pursuant to the provisions of the Louisiana
Partnership Act and the Delaware Revised Uniform Limited Partnership Act,
respectively, and are validly existing as limited partnerships under the laws
of such states and are duly qualified to transact business as foreign limited
partnerships and are validly existing in each other jurisdiction in which such
qualification is required, except where the failure to so qualify or be in
existence would not result in a Material Adverse Effect.

         (2)     To the best of her knowledge, the execution, delivery and
performance of the Underwriting Agreement, the Terms Agreement and the
Indenture and any other agreement or instrument entered into or to be entered
into by the Company in connection with the consummation of the transactions
contemplated in the Underwriting Agreement and Terms Agreement and in the
Registration Statement and the Prospectus (including the issuance and sale of
the Underwritten Securities and the use of the proceeds from the sale of the
Underwritten Securities as described under the caption "Use of Proceeds") and
compliance by the Company with its obligations thereunder 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 under,
or result in the creation or imposition of any lien, charge or encumbrance upon
any property or assets of the Company or any Subsidiary pursuant to, any
contract, indenture, mortgage, deed of trust, loan or credit agreement, note,
lease or any other agreement or instrument, known to her, 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 assets, properties or operations of the Company or any
Subsidiary is subject, except for such conflicts, breaches, defaults, events or
liens, charges or encumbrances that would not result in a Material Adverse
Effect, nor will such





                                      C-1
<PAGE>   34
action result in any violation of the provisions of the restated certificate of
incorporation or bylaws of the Company or any applicable law, statute, rule,
regulation, judgment, order, writ or decree, known to her, of any government,
government instrumentality or court, domestic or foreign, having jurisdiction
over the Company or any of its assets, properties or operations, except where
such violation would not result in a Material Adverse Effect.

         (3)     To the best of her knowledge, there are no legal or other
governmental proceedings pending or threatened against the Company or any
Subsidiary which is required to be disclosed in the Registration Statement and
the Prospectus (other than as stated therein).





                                      C-2
<PAGE>   35
                                                                       Exhibit D


         [FORM OF ACCOUNTANTS' COMFORT LETTER PURSUANT TO SECTION 5(e)]

We are independent public accountants with respect to the Company within the
meaning of the 1933 Act and the applicable published 1933 Act Regulations

                 (i)      in our opinion, the audited financial statements and
         the related financial statement schedules included or incorporated by
         reference in the Registration Statement and the Prospectus comply as
         to form in all material respects with the applicable accounting
         requirements of the 1933 Act and the published rules and regulations
         thereunder;

                 (ii)     on the basis of procedures (but not an examination in
         accordance with generally accepted auditing standards) consisting of a
         reading of the unaudited interim consolidated financial statements of
         the Company for the [three month periods ended ____________, 19___ and
         __________, 19___, the three and six month periods ended
         ______________, 19___ and _____________, 19____, and the three and
         nine month periods ended _____ ____, 19___ and _________________ ,
         19___, included or incorporated by reference in the Registration
         Statement and the Prospectus (collectively, the "10-Q Financials")] [,
         a reading of the latest available unaudited interim consolidated
         financial statements of the Company], a reading of the minutes of all
         meetings of the stockholders and directors of the Company and the
         Subsidiaries and the Committees of the Company's Board of Directors
         and any Subsidiary committees since the end of the last audited
         period, inquiries of certain officials of the Company and the
         Subsidiaries responsible for financial and accounting matters, a
         review of interim financial information in accordance with standards
         established by the American Institute of Certified Public Accountants
         in Statement on Auditing Standards No. 71, Interim Financial
         Information ("SAS 71"), with respect to the [description of relevant
         periods] and such other inquiries and procedures as may be specified
         in such letter, nothing came to our attention that caused us to
         believe that:

                 [(A)     the 10-Q Financials incorporated by reference in the
         Registration Statement and the Prospectus do not comply as to form in
         all material respects with the applicable accounting requirements of
         the 1934 Act and the 1934 Act Regulations applicable to unaudited
         financial statements included in Form 10-Q or any material
         modifications should be made to the 10-Q Financials incorporated by
         reference in the Registration Statement and the Prospectus for them to
         be in conformity with generally accepted accounting principles;]

                 [( )     the ___-month financials included in the Registration
         Statement and the Prospectus do not comply as to form in all material
         respects with the applicable accounting requirements of the 1933 Act
         and the 1933 Act Regulations applicable to unaudited interim financial
         statements included in registration statements or any material
         modifications should be made to the _________-month financials
         included in the Registration Statement and the Prospectus for them to
         be in conformity with generally accepted accounting principles;]





                                  Exhibit D-1
<PAGE>   36
                 ( )      at [__________, 19____ and at] a specified date not
         more than five days prior to the date of the applicable Terms
         Agreement, there was any change in the stockholders' equity or capital
         stock of the Company and its Subsidiaries or any decrease in the net
         current assets  of the Company and its Subsidiaries or any increase in
         the long-term debt of the Company and its Subsidiaries, in each case
         as compared with amounts shown in the latest balance sheet included in
         the Registration Statement and the Prospectus, except in each case for
         changes, decreases or increases that the Registration Statement and
         the Prospectus disclose have occurred or may occur; or

                 ( )      [for the period from _________, 19____ to __________,
         19____ and ] for the period from _______, 19___ to a specified date
         not more than five days prior to the date of the applicable Terms
         Agreement, there was any decrease in revenues, net income or earnings
         per share, in each case as compared with the comparable period in the
         preceding year, except in each case for any decreases that the
         Registration Statement and the Prospectus discloses have occurred or
         may occur;

                 (iii)    based upon the procedures set forth in clause (ii)
         above and a reading of the Selected Financial Data included in the
         Registration Statement and the Prospectus and a reading of the
         financial statements from which such data were derived, nothing came
         to our attention that caused us to believe that the Selected Financial
         Data included in the Registration Statement and the Prospectus do not
         comply as to form in all material respects with the disclosure
         requirements of Item 301 of Regulation S-K of the 1933 Act, that the
         amounts included in the Selected Financial Data are not in agreement
         with the corresponding amounts in the audited consolidated financial
         statements for the respective periods or that the financial statements
         not included in the Registration Statement and the Prospectus from
         which certain of such data were derived are not in conformity with
         generally accepted accounting principles;

                 (iv)     we have compared the information in the Registration
         Statement and the Prospectus under selected captions with the
         disclosure requirements of Regulation S-K of the 1933 Act and on the
         basis of limited procedures specified herein, nothing came to our
         attention that caused us to believe that this information does not
         comply as to form in all material respects with the disclosure
         requirements of Items 302, 402 and 503(d), respectively, of Regulation
         S-K;

                 [(v)     based upon the procedures set forth in clause (ii)
         above, a reading of the unaudited financial statements of the Company
         for [the most recent period] that have not been included in the
         Registration Statement and the Prospectus and a review of such
         financial statements in accordance with SAS 71, nothing came to our
         attention that caused us to believe that the unaudited amounts for
         ______________________________________ for the [most recent period] do
         not agree with the amounts set forth in the unaudited consolidated
         financial statements for those periods or that such unaudited amounts
         were not determined on a basis substantially consistent with that of
         the corresponding amounts in the audited consolidated financial
         statements;]

                 [(vi)]   we are unable to and do not express any opinion on
         the [Pro Forma Combining Statement of Operations] (the "Pro Forma
         Statement") included in the





                                  Exhibit D-2
<PAGE>   37
         Registration Statement and the Prospectus or on the pro forma
         adjustments applied to the historical amounts included in the Pro
         Forma Statement; however, for purposes of this letter we have:

                          (A)     read the Pro Forma Statement;

                          (B)     performed [an audit] [a review in accordance
                 with SAS 71] of the financial statements to which the pro
                 forma adjustments were applied;

                          (C)     made inquiries of certain officials of the
                 Company who have responsibility for financial and accounting
                 matters about the basis for their determination of the pro
                 forma adjustments and whether the Pro Forma Statement complies
                 as to form in all material respects with the applicable
                 accounting requirements of Rule 11-02 of Regulation S-X; and

                          (D)     proved the arithmetic accuracy of the
                 application of the pro forma adjustments to the historical
                 amounts in the Pro Forma Statement; and

         on the basis of such procedures and such other inquiries and
         procedures as specified herein, nothing came to our attention that
         caused us to believe that the Pro Forma Statement included in the
         Registration Statement does not comply as to form in all material
         respects with the applicable requirements of Rule 11-02 of Regulation
         S-X or that the pro forma adjustments have not been properly applied
         to the historical amounts in the compilation of those statements;] and

                 (vii)    in addition to the procedures referred to in clause
         (ii) above, we have performed other procedures, not constituting an
         audit, with respect to certain amounts, percentages, numerical data
         and financial information appearing in the Registration Statement and
         the Prospectus, which are specified herein, and have compared certain
         of such items with, and have found such items to be in agreement with,
         the accounting and financial records of the Company.





                                  Exhibit D-3

<PAGE>   1

                                                                     EXHIBIT 4.1





                           WEATHERFORD ENTERRA, INC.


                                      AND


                         BANK OF MONTREAL TRUST COMPANY

                                    TRUSTEE





                                _______________


                                   INDENTURE

                                _______________


                            DATED AS OF MAY 17, 1996
<PAGE>   2

                           WEATHERFORD ENTERRA, INC.

    RECONCILIATION AND TIE BETWEEN TRUST INDENTURE ACT OF 1939 AND INDENTURE

<TABLE>
<CAPTION>
Trust Indenture
  Act Section                                                                               Indenture Section
- -----------------                                                                           -----------------
<S>                                                                                           <C>
Section  310(a)(1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     609
            (a)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     609
            (a)(3)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
            (a)(4)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
            (a)(5)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     609
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     608
                        . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     610
            (c)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
Section  311(a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     613
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     613
            (c)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
Section  312(a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     701
                  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     702
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     702
            (c)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     702
Section  313(a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     703
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     703
            (c)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     703
            (d)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     703
Section  314(a)(1)-(3)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     704
            (a)(4)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     704
                        . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     1007
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
            (c)(1)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     102
            (c)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     102
            (c)(3)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
            (d)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
            (e)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     102
Section  315(a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     601
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     602
            (c)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     601
            (d)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     601
            (e)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     514
Section  316(a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     101
            (a)(1)(A)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     502
                        . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     512
            (a)(1)(B)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     513
            (a)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     Not Applicable
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     508
            (c)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     104
Section  317(a)(1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     503
            (a)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     504
            (b)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     1003
Section  318(a)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     108
</TABLE>

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

NOTE:  This reconciliation and tie shall not, for any purpose, be deemed to be
part of the Indenture.





<PAGE>   3
                               TABLE OF CONTENTS


<TABLE>
         <S>                                                                                                           <C>
         RECITALS OF THE COMPANY  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1

                                                       ARTICLE  ONE


                                 DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

         SECTION 101.     Definitions.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
         SECTION 102.     Compliance Certificates and Opinions. . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
         SECTION 103.     Form of Documents Delivered to Trustee.   . . . . . . . . . . . . . . . . . . . . . . . . .   7
         SECTION 104.     Acts of Holders.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
         SECTION 105.     Notices, Etc., to Trustee and Company.  . . . . . . . . . . . . . . . . . . . . . . . . . .   9
         SECTION 106.     Notice to Holders of Securities; Waiver.  . . . . . . . . . . . . . . . . . . . . . . . . .   9
         SECTION 107.     Language of Notices, Etc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
         SECTION 108.     Conflict with Trust Indenture Act.  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
         SECTION 109.     Effect of Headings and Table of Contents. . . . . . . . . . . . . . . . . . . . . . . . . .  10
         SECTION 110.     Successors and Assigns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
         SECTION 111.     Separability Clause.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
         SECTION 112.     Benefits of Indenture.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
         SECTION 113.     Governing Law.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
         SECTION 114.     Legal Holidays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11

                                                       ARTICLE  TWO


                                                      SECURITY FORMS

         SECTION 201.     Forms Generally.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
         SECTION 202.     Form of Trustee's Certificate of Authentication.  . . . . . . . . . . . . . . . . . . . . .  12
         SECTION 203.     Securities in Global Form.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
         SECTION 204.     Form of Legend for Book-Entry Securities. . . . . . . . . . . . . . . . . . . . . . . . . .  13

                                                      ARTICLE THREE


                                                      THE SECURITIES

         SECTION 301.     Amount Unlimited; Issuable in Series. . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
         SECTION 302.     Denominations.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
         SECTION 303.     Execution, Authentication, Delivery and Dating. . . . . . . . . . . . . . . . . . . . . . .  15
         SECTION 304.     Temporary Securities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
         SECTION 305.     Registration, Registration of Transfer and Exchange.  . . . . . . . . . . . . . . . . . . .  19
         SECTION 306.     Mutilated, Destroyed, Lost and Stolen Securities and Coupons. . . . . . . . . . . . . . . .  21
         SECTION 307.     Payment of Interest; Interest Rights Preserved. . . . . . . . . . . . . . . . . . . . . . .  22
         SECTION 308.     Persons Deemed Owners.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
         SECTION 309.     Cancellation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
         SECTION 310.     Computation of Interest.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24
</TABLE>


                                      -i-
<PAGE>   4
<TABLE>
         <S>              <C>                                                                                          <C>
                                                      ARTICLE  FOUR


                                                SATISFACTION AND DISCHARGE

         SECTION 401.     Satisfaction and Discharge of Indenture.  . . . . . . . . . . . . . . . . . . . . . . . . .  24
         SECTION 402.     Application of Trust Money. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25

                                                      ARTICLE  FIVE


                                                         REMEDIES

         SECTION 501.     Events of Default.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
         SECTION 502.     Acceleration of Maturity; Rescission and Annulment. . . . . . . . . . . . . . . . . . . . .  27
         SECTION 503.     Collection of Indebtedness and Suits for Enforcement by Trustee.  . . . . . . . . . . . . .  27
         SECTION 504.     Trustee May File Proofs of Claim. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
         SECTION 505.     Trustee May Enforce Claims Without Possession of Securities or Coupons. . . . . . . . . . .  28
         SECTION 506.     Application of Money Collected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
         SECTION 507.     Limitation on Suits.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
         SECTION 508.     Unconditional Right of Holders to Receive Principal, Premium and Interest.  . . . . . . . .  30
         SECTION 509.     Restoration of Rights and Remedies. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
         SECTION 510.     Rights and Remedies Cumulative. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
         SECTION 511.     Delay or Omission Not Waiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
         SECTION 512.     Control by Holders of Securities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
         SECTION 513.     Waiver of Past Defaults.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
         SECTION 514.     Undertaking for Costs.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
         SECTION 515.     Waiver of Stay or Extension Laws. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32

                                                       ARTICLE  SIX


                                                       THE TRUSTEE

         SECTION 601.     Certain Duties and Responsibilities.  . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
         SECTION 602.     Notice of Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
         SECTION 603.     Certain Rights of Trustee.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
         SECTION 604.     Not Responsible for Recitals or Issuance of Securities. . . . . . . . . . . . . . . . . . .  33
         SECTION 605.     May Hold Securities.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33
         SECTION 606.     Money Held in Trust.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33
         SECTION 607.     Compensation and Reimbursement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33
         SECTION 608.     Disqualification; Conflicting Interests.  . . . . . . . . . . . . . . . . . . . . . . . . .  34
         SECTION 609.     Corporate Trustee Required; Eligibility.  . . . . . . . . . . . . . . . . . . . . . . . . .  34
         SECTION 610.     Resignation and Removal; Appointment of Successor.  . . . . . . . . . . . . . . . . . . . .  34
         SECTION 611.     Acceptance of Appointment by Successor. . . . . . . . . . . . . . . . . . . . . . . . . . .  36
         SECTION 612.     Merger, Conversion, Consolidation or Succession to Business.  . . . . . . . . . . . . . . .  36
         SECTION 613.     Preferential Collection of Claims Against Company.  . . . . . . . . . . . . . . . . . . . .  37
         SECTION 614.     Appointment of Authenticating Agent.  . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
</TABLE>


                                      -ii-
<PAGE>   5

<TABLE>
         <S>            <C>                                                                                            <C>
                                                      ARTICLE  SEVEN


                                    HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

         SECTION 701.     Company to Furnish Trustee Names and Addresses of Holders.  . . . . . . . . . . . . . . . .  38
         SECTION 702.     Preservation of Information; Communications to Holders. . . . . . . . . . . . . . . . . . .  39
         SECTION 703.     Reports by Trustee. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
         SECTION 704.     Reports by Company. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39

                                                      ARTICLE  EIGHT


                                   CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

         SECTION 801.     Company May Consolidate, Etc., Only on Certain Terms. . . . . . . . . . . . . . . . . . . .  39
         SECTION 802.     Successor Substituted.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40

                                                      ARTICLE  NINE


                                                 SUPPLEMENTAL INDENTURES

         SECTION 901.     Supplemental Indentures without Consent of Holders. . . . . . . . . . . . . . . . . . . . .  40
         SECTION 902.     Supplemental Indentures with Consent of Holders.  . . . . . . . . . . . . . . . . . . . . .  41
         SECTION 903.     Execution of Supplemental Indentures. . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
         SECTION 904.     Effect of Supplemental Indentures.  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
         SECTION 905.     Conformity with Trust Indenture Act.  . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
         SECTION 906.     Reference in Securities to Supplemental Indentures. . . . . . . . . . . . . . . . . . . . .  43

                                                       ARTICLE  TEN


                                                        COVENANTS

         SECTION 1001.  Payment of Principal, Premium and Interest. . . . . . . . . . . . . . . . . . . . . . . . . .  43
         SECTION 1002.   Corporate Existence and Maintenance of Office or Agency. . . . . . . . . . . . . . . . . . .  43
         SECTION 1003.  Money for Securities Payments to Be Held in Trust.  . . . . . . . . . . . . . . . . . . . . .  44
         SECTION 1004.  Additional Amounts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45
         SECTION 1005.  Purchase of Securities by Company or Subsidiary.  . . . . . . . . . . . . . . . . . . . . . .  46
         SECTION 1006.  Limitation on Liens.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  46
         SECTION 1007.  Statement by Officer as to Default. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
         SECTION 1008.  Waiver of Certain Covenants.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
         SECTION 1009.  Limitation on Sale/Leaseback Transactions.  . . . . . . . . . . . . . . . . . . . . . . . . .  47

                                                     ARTICLE  ELEVEN


                                                 REDEMPTION OF SECURITIES

         SECTION 1101.  Applicability of Article. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  48
</TABLE>



                                     -iii-
<PAGE>   6
<TABLE>
         <S>                                                                                                           <C>
         SECTION 1102.  Election to Redeem; Notice to Trustee.  . . . . . . . . . . . . . . . . . . . . . . . . . . .  48
         SECTION 1103.  Selection of Securities to Be Redeemed. . . . . . . . . . . . . . . . . . . . . . . . . . . .  49
         SECTION 1104.  Notice of Redemption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  49
         SECTION 1105.  Deposit of Redemption Price.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
         SECTION 1106.  Securities Payable on Redemption Date.  . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
         SECTION 1107.  Securities Redeemed in Part.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50

                                                     ARTICLE  TWELVE


                                                      SINKING FUNDS

         SECTION 1201.  Applicability of Article. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
         SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities.  . . . . . . . . . . . . . . . . . . .  51
         SECTION 1203.  Redemption of Securities for Sinking Fund.  . . . . . . . . . . . . . . . . . . . . . . . . .  51

                                                    ARTICLE  THIRTEEN


                                            DEFEASANCE AND COVENANT DEFEASANCE

         SECTION 1301.  Company's Option to Effect Defeasance or Covenant Defeasance. . . . . . . . . . . . . . . . .  52
         SECTION 1302.  Defeasance and Discharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
         SECTION 1303.  Covenant Defeasance.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
         SECTION 1304.  Conditions to Defeasance or Covenant Defeasance.  . . . . . . . . . . . . . . . . . . . . . .  52
         SECTION 1305.  Deposited Money and U.S. Government Obligations to Be Held in Trust;               
                          Other Miscellaneous Provisions.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
         SECTION 1306.  Reinstatement.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54

                                                    ARTICLE  FOURTEEN


                                         MEETINGS OF HOLDERS OF BEARER SECURITIES

         SECTION 1401.  Purposes for Which Meetings May Be Called.  . . . . . . . . . . . . . . . . . . . . . . . . .  55
         SECTION 1402.  Call, Notice and Place of Meetings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
         SECTION 1403.  Persons Entitled to Vote at Meetings. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
         SECTION 1404.  Quorum; Action. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
         SECTION 1405.  Determination of Voting Rights; Conduct and Adjournment of Meetings.  . . . . . . . . . . . .  56
         SECTION 1406.  Counting Votes and Recording Action of Meetings.  . . . . . . . . . . . . . . . . . . . . . .  57

</TABLE>


                                      -iv-
<PAGE>   7
         THIS INDENTURE, dated as of May 17, 1996, between Weatherford Enterra,
Inc., a corporation duly organized and existing under the laws of the State of
Delaware (herein called the "Company"), having its principal office at 1360
Post Oak Boulevard, Suite 1000, Houston, Texas 77056, and Bank of Montreal
Trust Company, as Trustee (herein called the "Trustee").

                            RECITALS OF THE COMPANY

         The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its unsecured
debentures, notes or other evidences of indebtedness (herein called the
"Securities"), to be issued in one or more series as in this Indenture
provided.

         This Indenture is subject to the provisions of the Trust Indenture Act
of 1939, as amended, that are required to be part of this Indenture and shall,
to the extent applicable, be governed by such provisions.

         All things necessary to make this Indenture a valid agreement of the
Company, in accordance with its terms, have been done.

         NOW, THEREFORE, THIS INDENTURE WITNESSETH:

         For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually agreed, for the equal and
proportionate benefit of all Holders of the Securities or of a series thereof,
as follows:


                                  ARTICLE  ONE

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.     Definitions.

         For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

                 (1)      the terms defined in this Article have the meanings
         assigned to them in this Article and include the plural as well as the
         singular;

                 (2)      all other terms used herein which are defined in the
         Trust Indenture Act, either directly or by reference therein, have the
         meanings assigned to them therein;

                 (3)      all accounting terms not otherwise defined herein
         have the meanings assigned to them in accordance with generally
         accepted accounting principles in the United States of America, and,
         except as otherwise herein expressly provided, the term "generally
         accepted accounting principles" with respect to any computation
         required or permitted hereunder shall mean such accounting principles
         as are generally accepted in the United States of America at the date
         of such computation; and

                 (4)      the words "herein," "hereof" and "hereunder" and
         other words of similar import refer to this Indenture as a whole and
         not to any particular Article, Section or other subdivision, and the
         words "date of this Indenture" and "date hereof" and other words of
         similar import refer to the effective date of the original execution
         and delivery of this Indenture, viz. May 17, 1996.

         "Act," when used with respect to any Holder of a Security, has the
meaning specified in Section 104.





                                      -1-
<PAGE>   8
         "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person.  For the purposes of this definition
"control," when used with respect to any specified Person, means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

         "Attributable Indebtedness" means, with respect to any Sale/Leaseback
Transaction as of any particular time, the present value (discounted at the
rate of interest implicit in the terms of the lease) of the obligations of the
lessee under such lease for net rental payments during the remaining term of
the lease (including any period for which such lease has been extended).  "Net
rental payments" under any lease for any period means the sum of the rental and
other payments required to be paid in such period by the lessee thereunder, not
including, however, any amounts required to be paid by such lessee (whether or
not designated as rental or additional rental) on account of maintenance and
repairs, insurance, taxes, assessments or similar charges required to be paid
by such lessee thereunder contingent upon the amount of sales or deliveries,
maintenance and repairs, insurance, taxes, assessments or similar charges.

         "Authenticating Agent" means any Person authorized by the Trustee
pursuant to Section 614 to act on behalf of the Trustee to authenticate
Securities of one or more series.

         "Authorized Newspaper" means a newspaper, in the English language or
in an official language of the country of publication, customarily published on
each Business Day, whether or not published on Saturdays, Sundays or holidays,
and of general circulation in the place in connection with which the term is
used or in the financial community of such place.  Where successive
publications are required to be made in Authorized Newspapers, the successive
publications may be made in the same or in different newspapers in the same
city meeting the foregoing requirements and in each case on any Business Day.

         "Bearer Security" means any Security in the form established pursuant
to Section 201 which is payable to bearer, including, without limitation, a
Security in temporary or permanent global form.

         "Board of Directors" means either the board of directors of the
Company or any duly authorized committee of that board.

         "Board Resolution" means a copy of a resolution certified by the
Secretary or an Assistant Secretary of the Company to have been duly adopted by
the Board of Directors or any committee thereof, and to be in full force and
effect on the date of such certification, and delivered to the Trustee.

         "Book-Entry Security" means a Security bearing the legend specified in
Section 204, evidencing all or part of a series of Securities, issued to the
Depository for such series or its nominee, and registered in the name of such
Depository or nominee.  Book-Entry Securities shall not be deemed to be
Securities in global form for purposes of Sections 201 and 203 and Article
Three of this Indenture.

         "Business Day," when used with respect to any Place of Payment or any
other particular location referred to in this Indenture or in the Securities,
means each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day
on which banking institutions in that Place of Payment or other location are
authorized or obligated by law or executive order to close except as may
otherwise be provided with respect to Securities of any given series.

         "Certification Date" means with respect to Securities of any series
(i) if Bearer Securities of such series are not to be initially represented by
a temporary global Security, the date of delivery of the definitive Bearer
Security and (ii) if Bearer Securities of such series are initially represented
by a temporary global Security, the earlier of (A) the Exchange Date with
respect to Securities of such series and (B) if the first





                                      -2-
<PAGE>   9
Interest Payment Date with respect to Securities of such series is prior to
such Exchange Date, such Interest Payment Date.

         "Commission" means the Securities and Exchange Commission, as from
time to time constituted, created under the Securities Exchange Act of 1934, as
amended, or, if at any time after the execution of this instrument such
Commission is not existing and performing the duties now assigned to it under
the Trust Indenture Act, then the body performing such duties at such time.

         "Common Depositary" has the meaning specified in Section 304.

         "Company" means the Person named as the "Company" in the first
paragraph of this instrument until a successor Person shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor Person.

         "Company Order" or "Company Request" means a written order or request
signed in the name of the Company by its Chairman of the Board, its President
or a Vice President, and by its Treasurer, an Assistant Treasurer, its
Secretary or an Assistant Secretary, and delivered to the Trustee.

         "Consolidated Net Worth" means the amount of total stockholders'
equity shown in the most recent consolidated statement of financial position of
the Company.

         "Corporate Trust Office" means the principal office of the Trustee in
New York, New York, at which at any particular time its corporate trust
business shall be administered.

         The term "corporation" means a corporation, association, limited
liability company, joint-stock company, business trust or similar organization.

         The term "coupon" means any interest coupon appertaining to a Bearer
Security.

         "Current Assets" of any Person includes all assets of such Person
which would in accordance with generally accepted accounting principles be
classified as current assets.

         "Current Liabilities" of any Person includes all liabilities of such
Person which would in accordance with generally accepted accounting principles
be classified as current liabilities.

         "Defaulted Interest" has the meaning specified in Section 307.

         "Depository" means, with respect to the Securities of any series
issuable or issued in whole or in part in the form of one or more Book-Entry
Securities, the clearing agency registered under the Securities Exchange Act of
1934, as amended, specified for that purpose as contemplated by Section 301.

         "Dollar" or "$" means a dollar or other equivalent unit in such coin
or currency of the United States of America as at the time shall be legal
tender for the payment of public and private debts.

         "Euro-clear" means the operator of the Euro-clear System.

         "Event of Default" has the meaning specified in Section 501.

         "Exchange Date" has the meaning specified in Section 304.





                                      -3-
<PAGE>   10
         "Holder," when used with respect to any Security, means in the case of
a Registered Security the Person in whose name the Security is registered in
the Security Register and in the case of a Bearer Security the bearer thereof
and, when used with respect to any coupon, means the bearer thereof.

         "Indenture" means this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof
and shall include the terms of particular series of Securities established as
contemplated by Section 301 and the provisions of the Trust Indenture Act that
are deemed to be a part of and govern this instrument.

         The term "interest," when used with respect to an Original Issue
Discount Security which by its terms bears interest only after Maturity, means
interest payable after Maturity.

         "Interest Payment Date," when used with respect to any Security, means
the Stated Maturity of an installment of interest on such Security.

         "Issue Date" means the Date on which Securities are originally issued
under this Indenture.

         "Maturity," when used with respect to any Security or any installment
of principal thereof, means the date on which the principal of such Security or
such installment of principal, as the case may be, becomes due and payable as
therein or herein provided, whether at the Stated Maturity or by declaration of
acceleration, call for redemption or otherwise.

         "Non-Recourse Indebtedness" means indebtedness of the Company or any
Subsidiary of the Company in respect of which the recourse of the holder of
such indebtedness, whether direct or indirect and whether contingent or
otherwise, is effectively limited to specified assets, and with respect to
which neither the Company nor any Subsidiary of the Company provides any credit
support.

         "Officers' Certificate" means a certificate complying with the
provisions of Section 102 signed by the Chairman of the Board, the President or
a Vice President, and by the Treasurer, an Assistant Treasurer, the Secretary
or an Assistant Secretary, of the Company and delivered to the Trustee.

         "Opinion of Counsel" means a written opinion of counsel, who may be an
employee of or counsel for the Company.

         "Original Issue Discount Security" means any Security which is issued
at a price lower than the principal amount payable upon the Stated Maturity
thereof and which provides for an amount less than the principal amount thereof
to be due and payable upon redemption thereof or upon a declaration of
acceleration of the Maturity thereof pursuant to Section 502.

         "Outstanding," when used with respect to Securities, means, as of the
date of determination, all Securities theretofore authenticated and delivered
under this Indenture, except:

                 (i)      Securities theretofore cancelled by the Trustee or
         delivered to the Trustee for cancellation;

                 (ii)     Securities for whose payment or redemption money in
         the necessary amount has been theretofore deposited with the Trustee
         or any Paying Agent (other than the Company) in trust or set aside and
         segregated in trust by the Company (if the Company shall act as its
         own Paying Agent) for the Holders of such Securities and any coupons
         appertaining thereto, provided that, if such Securities are to be
         redeemed, notice of such redemption has been duly given pursuant to
         this Indenture or provision therefor satisfactory to the Trustee has
         been made; and





                                      -4-
<PAGE>   11
                 (iii)    Securities which have been paid pursuant to Section
         306 or in exchange for or in lieu of which other Securities have been
         authenticated and delivered pursuant to this Indenture, other than any
         such Securities in respect of which there shall have been presented to
         the Trustee proof satisfactory to it that such Securities are held by
         a bona fide purchaser in whose hands such Securities are valid
         obligations of the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder or whether a
quorum is present at a meeting of Holders of Securities (a) the principal
amount of an Original Issue Discount Security that shall be deemed to be
Outstanding shall be the amount of the principal thereof that would be due and
payable as of the date of such determination upon acceleration of the Maturity
thereof pursuant to Section 502, (b) the principal amount of a Security
denominated in a foreign currency or currencies, including composite
currencies, shall be the Dollar equivalent, determined on the date of original
issuance of such Security in the manner provided as contemplated by Section
301, of the principal amount (or, in the case of an Original Issue Discount
Security, the Dollar equivalent on the date of original issuance of such
Security of the amount determined as provided in (a) above) of such Security,
and (c) Securities owned by the Company or any other obligor upon the
Securities or any Affiliate of the Company or of such other obligor shall be
disregarded and deemed not to be Outstanding, except that, in determining
whether the Trustee shall be protected in relying upon any such request,
demand, authorization, direction, notice, consent or waiver, or upon any such
determination as to the presence of a quorum, only Securities which the Trustee
knows to be so owned shall be so disregarded.  Securities so owned which have
been pledged in good faith may be regarded as Outstanding if the pledgee
establishes to the satisfaction of the Trustee the pledgee's right so to act
with respect to such Securities and that the pledgee is not the Company, or any
other obligor upon the Securities or any Affiliate of the Company or of such
other obligor.

         "Paying Agent" means any Person authorized by the Company to pay the
principal of or any premium or interest on any Securities on behalf of the
Company.

         "Person" means any individual, corporation, partnership, joint
venture, limited liability company, trust, unincorporated organization or
government or any agency or political subdivision thereof.

         "Place of Payment," when used with respect to the Securities of any
series, means the place or places as specified in accordance with Section 301
where, subject to the provisions of Section 1002, the principal of and any
premium and interest on the Securities of that series are payable.

         "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by such
particular Security; and for the purposes of this definition, any Security
authenticated and delivered under Section 306 in exchange for or in lieu of a
mutilated, destroyed, lost or stolen Security or a Security to which a
mutilated, destroyed, lost or stolen coupon appertains shall be deemed to
evidence the same debt as the mutilated, destroyed, lost or stolen Security or
the Security to which the mutilated, destroyed, lost or stolen coupon
appertains, as the case may be.

         "Redemption Date," when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to this
Indenture.

         "Redemption Price," when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to this
Indenture.

         "Registered Security" means any Security in the form established
pursuant to Section 201 which is registered in the Security Register.





                                      -5-
<PAGE>   12
         "Regular Record Date" for the interest payable on any Interest Payment
Date on the Registered Securities of any series means the date specified for
that purpose as contemplated by Section 301.

         "Responsible Officer," when used with respect to the Trustee, shall
mean any officer in the corporate trust department (or any successor group) of
the Trustee, including any Vice President, any Trust Officer, or any other
officer of the Trustee customarily performing functions similar to those
performed by the persons who at the time shall be such officers, respectively,
or to whom any corporate trust matter is referred at the Corporate Trust Office
because of his or her knowledge of and familiarity with the particular subject.

         "Sale/Leaseback Transaction" means any arrangement with any Person
providing for the leasing by the Company or any Subsidiary, for a period of
more than three years, of any real or personal property, which property has
been or is to be sold or transferred by the Company or such Subsidiary to such
Person in contemplation of such leasing.

         "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and
delivered under this Indenture.

         "Security Register" and "Security Registrar" have the respective
meanings specified in Section 305.

         "Special Record Date" for the payment of any Defaulted Interest on the
Registered Securities of any series means a date fixed by the Trustee pursuant
to Section 307.

         "Stated Maturity," when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security or a coupon representing such installment of interest as the
fixed date on which the principal of such Security or such installment of
principal or interest is due and payable.

         "Subsidiary" of a Person means (i) any corporation more than 50% of
the outstanding securities having ordinary voting power of which is owned,
directly or indirectly, by such Person or by one or more of its Subsidiaries,
or by such Person and one or more of its Subsidiaries, or (ii) any partnership
or similar business organization more than 50% of the ownership interests
having ordinary voting power of which shall at the time be so owned.  For the
purposes of this definition, "securities having ordinary voting power" means
securities or other equity interests which ordinarily have voting power for the
election of directors, or persons having management power with respect to the
Person, whether at all times or only so long as no senior class of securities
has such voting power by reason of any contingency.

         "Trustee" means the Person named as the "Trustee" in the first
paragraph of this Indenture until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder,
and if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean the Trustee with respect to
Securities of that series.

         "Trust Indenture Act" means the Trust Indenture Act of 1939 as in
force at the date as of which this Indenture was executed, except as provided
in Section 905.

         "United States" means the United States of America (including the
States and the District of Columbia), its territories, its possessions and
other areas subject to its jurisdiction.

         "United States Alien" means any Person who, for United States Federal
income tax purposes, is a foreign corporation, a non-resident alien individual,
a non-resident alien fiduciary of a foreign estate or trust, or a foreign
partnership one or more of the members of which is, for United States Federal
income tax





                                      -6-
<PAGE>   13
purposes, a foreign corporation, a non-resident alien individual or a
non-resident alien fiduciary of a foreign estate or trust.

         "U.S. Government Obligations" has the meaning specified in Section
1304.

         "Vice President," when used with respect to the Company or the
Trustee, means any vice president, whether or not designated by a number or a
word or words added before or after the title "vice president."

SECTION 102.     Compliance Certificates and Opinions.

         Upon any application or request by the Company to the Trustee to take
any action under any provision of this Indenture, the Company shall furnish to
the Trustee such certificates and opinions as may be required under the Trust
Indenture Act.  Each such certificate or opinion shall be given in the form of
an Officers' Certificate, if to be given by an officer of the Company, or an
Opinion of Counsel, if to be given by counsel, and shall comply with the
requirements of the Trust Indenture Act and any other requirements set forth in
this Indenture.

         Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include

                 (1)      a statement that each Person signing such certificate
         or opinion has read such covenant or condition and the definitions
         herein relating thereto;

                 (2)      a brief statement as to the nature and scope of the
         examination or investigation upon which the statements or opinions
         contained in such certificate or opinion are based;

                 (3)      a statement that, in the opinion of each such Person,
         such Person has made such examination or investigation as is necessary
         to enable such Person to express an informed opinion as to whether or
         not such covenant or condition has been complied with; and

                 (4)      a statement as to whether, in the opinion of each
         such Person, such condition or covenant has been complied with.

SECTION 103.     Form of Documents Delivered to Trustee.

         In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

         Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to the matters upon which his certificate or opinion is based are
erroneous.  Any such certificate or Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care
should know, that the certificate or opinion or representations with respect to
such matters are erroneous.





                                      -7-
<PAGE>   14
         Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

SECTION 104.     Acts of Holders.

         (a)     Any request, demand, authorization, direction, notice,
consent, waiver or other action provided by this Indenture to be given or taken
by Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent
duly appointed in writing.  If Securities of a series are issuable as Bearer
Securities, any request, demand, authorization, direction, notice, consent,
waiver or other action provided by this Indenture to be given or taken by
Holders of such  series may, alternatively, be embodied in and evidenced by the
record of Holders of Securities of such series voting in favor thereof, either
in person or by proxies duly appointed in writing, at any meeting of Holders of
Securities of such series duly called and held in accordance with the
provisions of Article Fourteen, or a combination of such instruments and any
such record. Except as herein otherwise expressly provided, such action shall
become effective when such instrument or instruments or record or both are
delivered to the Trustee and, where it is hereby expressly required, to the
Company.  Such instrument or instruments and any such record (and the action
embodied therein and evidenced thereby) are herein sometimes referred to as the
"Act" of the Holders signing such instrument or instruments and so voting at
any such meeting.  Proof of execution of any such instrument or of a writing
appointing any such agent or proxy or of the holding by any Person of a
Security, shall be sufficient for any purpose of this Indenture and (subject to
Section 601) conclusive in favor of the Trustee and the Company, if made in the
manner provided in this Section.  The record of any meeting of Holders of
Securities shall be proved in the manner provided in Section 1406.

         (b)     The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof.  Where
such execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his authority.  The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other manner which the Trustee deems sufficient.

         (c)     The Company may, in the circumstances permitted by the Trust
Indenture Act, fix any day as the record date for the purpose of determining
the Holders of Registered Securities of any series entitled to give or take any
request, demand, authorization, direction, notice, consent, waiver or other
action, or to vote on any action, authorized or permitted to be given or taken
by Holders of Securities of such series.  If not set by the Company prior to
the first solicitation of a Holder of Securities of such series made by any
Person in respect of any such action, or, in the case of any such vote, prior
to such vote, the record date for any such action or vote shall be the 30th day
(or, if later, the date of the most recent list of Holders required to be
provided pursuant to Section 701) prior to such first solicitation or vote, as
the case may be.  With regard to any record date for action to be taken by the
Holders of one or more series of Securities, only the Holders of Securities of
such series on such date (or their duly designated proxies) shall be entitled
to give or take, or vote on, the relevant action.

         (d)     The principal amount and serial numbers of Registered
Securities held by any Person, and the date of holding the same, shall be
proved by the Security Register.

         (e)     The principal amount and serial numbers of Bearer Securities
held by any Person, and the date of holding the same, may be proved by the
production of such Bearer Securities or by a certificate executed, as
depositary, by any trust company, bank, banker or other depositary, wherever
situated, if such certificate shall be deemed by the Trustee to be
satisfactory, showing that at the date therein mentioned such





                                      -8-
<PAGE>   15
Person had on deposit with such depositary, or exhibited to it, the Bearer
Securities therein described; or such facts may be proved by the certificate or
affidavit of the Person holding such Bearer Securities, if such certificate or
affidavit is deemed by the Trustee to be satisfactory.  The Trustee and the
Company may assume that such ownership of any Bearer Security continues until
(1) another certificate or affidavit bearing a later date issued in respect of
the same Bearer Security is produced, or  (2) such Bearer Security is produced
to the Trustee by some other Person, or (3) such Bearer Security is surrendered
in exchange for a Registered Security, or (4) such Bearer Security is no longer
Outstanding.  The principal amount and serial numbers of Bearer Securities held
by any Person, and the date of holding the same, may also be proved in any
other manner which the Trustee deems sufficient.

         (f)     Any request, demand, authorization, direction, notice,
consent, waiver or other Act of the Holder of any Security shall bind every
future Holder of the same Security and the Holder of every Security issued upon
the registration of transfer thereof or in exchange therefor or in lieu thereof
in respect of anything done, omitted or suffered to be done by the Trustee or
the Company in reliance thereon, whether or not notation of such action is made
upon such Security.  Any Holder or subsequent Holder may revoke the request,
demand, authorization, direction, notice, consent, waiver or other Act as to
his Security or portion of his Security; provided, however, that such
revocation shall be effective only if the Trustee receives notice of such
revocation before the date the Act becomes effective.

         (g)     Without limiting the foregoing, a Holder entitled hereunder to
give or take any action hereunder with regard to any particular Security may do
so with regard to all or any part of the principal amount of such Security or
by one or more duly appointed agents each of which may do so pursuant to such
appointment with regard to all or any different part of such principal amount.

SECTION 105.     Notices, Etc., to Trustee and Company.

         Any request, demand, authorization, direction, notice, consent, waiver
or Act of Holders or other document provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,

                 (1)      the Trustee by any Holder or by the Company shall be
         sufficient for every purpose hereunder if made, given, furnished or
         filed in writing to or with the Trustee at its Corporate Trust Office,
         Attention: Corporate Trust Department, or

                 (2)      the Company by the Trustee or by any Holder shall be
         sufficient for every purpose hereunder (unless otherwise herein
         expressly provided) if in writing and mailed, first-class postage
         prepaid, to the Company addressed to it at the address of its
         principal office specified in the first paragraph of this Indenture,
         to the attention of its Treasurer, or at any other address previously
         furnished in writing to the Trustee by the Company; and in the case of
         Bearer Securities, at the address of an office or agency located
         outside the United States maintained by the Company in accordance with
         Section 1002.

SECTION 106.     Notice to Holders of Securities; Waiver.

         Except as otherwise expressly provided herein, where this Indenture
provides for notice to Holders of Securities of any event,

                 (1)      such notice shall be sufficiently given to Holders of
         Registered Securities if in writing and mailed, first-class postage
         prepaid, to each Holder of a Registered Security affected by such
         event, at the address of such Holder as it appears in the Security
         Register, not later than the latest date, and not earlier than the
         earliest date, prescribed for the giving of such notice; and





                                      -9-
<PAGE>   16
                 (2)      such notice shall be sufficiently given to Holders of
         Bearer Securities if published in an Authorized Newspaper in The City
         of New York and in such other city or cities as may be specified in
         such Securities on a Business Day at least twice, the first such
         publication to be not earlier than the earliest date, and not later
         than the latest date, prescribed for the giving of such notice.

         In case by reason of the suspension of regular mail service or by
reason of any other cause it shall be impracticable to give such notice to
Holders of Registered Securities by mail, then such notification as shall be
made with the approval of the Trustee shall constitute sufficient notice to
such Holders for every purpose hereunder.  In any case where notice to Holders
of Registered Securities is given by mail, neither the failure to mail such
notice, nor any defect in any notice so mailed, to any particular Holder of a
Registered Security shall affect the sufficiency of such notice with respect to
other Holders of Registered Securities or the sufficiency of any notice to
Holders of Bearer Securities given as provided herein.

         In case by the reason of the suspension of publication of any
Authorized Newspaper or Authorized Newspapers or by reason of any other cause
it shall be impracticable to publish any notice to Holders of Bearer Securities
as provided above, then such notification to Holders of Bearer Securities as
shall be given with the approval of the Trustee shall constitute sufficient
notice to such Holders for every purpose hereunder.  Neither the failure to
give notice by publication to Holders of Bearer Securities as provided above,
nor any defect in any notice so published, shall affect the sufficiency of any
notice to Holders of Registered Securities given as provided herein.

         Where this Indenture provides for notice in any manner, such notice
may be waived in writing by the Person entitled to receive such notice, either
before or after the event, and such waiver shall be the equivalent of such
notice.  Waivers of notice by Holders of Securities shall be filed with the
Trustee, but such filing shall not be a condition precedent to the validity of
any action taken in reliance upon such waiver.

SECTION 107.     Language of Notices, Etc.

         Any request, demand, authorization, direction, notice, consent or
waiver required or permitted under this Indenture shall be in the English
language, except that any published notice may be in an official language of
the country of publication.

SECTION 108.     Conflict with Trust Indenture Act.

         If any provision hereof limits, qualifies or conflicts with any
provision of the Trust Indenture Act, or any other provision included in this
Indenture by any provision of the Trust Indenture Act, such provision of the
Trust Indenture Act or included provision shall control.  If any provision of
this Indenture modifies or excludes any provision of the Trust Indenture Act
that may be so modified or excluded, the latter provision shall be deemed to
apply to this Indenture as so modified or to be excluded, as the case may be.

SECTION 109.     Effect of Headings and Table of Contents.

         The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

SECTION 110.     Successors and Assigns.

         All covenants and agreements in this Indenture by the Company shall
bind its successors and assigns, whether so expressed or not.





                                      -10-
<PAGE>   17
SECTION 111.     Separability Clause.

         In case any provision in this Indenture or the Securities or coupons
shall be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby.

SECTION 112.     Benefits of Indenture.

         Nothing in this Indenture or the Securities or coupons, express or
implied, shall give to any Person, other than the parties hereto, their
successors hereunder and the Holders of Securities and coupons, any benefit or
any legal or equitable right, remedy or claim under this Indenture.

SECTION 113.     Governing Law.

         This Indenture and the Securities and coupons shall be governed by and
construed in accordance with the laws of the State of New York, without regard
to principles of conflicts of laws.

SECTION 114.     Legal Holidays.

         In any case where any Interest Payment Date, Redemption Date or Stated
Maturity of any Security shall not be a Business Day at any Place of Payment,
then (notwithstanding any other provision of this Indenture or of the
Securities or coupons other than a provision in the Securities of any series
which specifically states that such provision shall apply in lieu of this
Section) payment of interest or principal (and premium, if any) need not be
made at such Place of Payment on such date, but may be made on the next
succeeding Business Day at such Place of Payment with the same force and effect
as if made on the Interest Payment Date or Redemption Date, or at the Stated
Maturity, provided that no interest shall accrue on the amount so payable for
the period from and after such Interest Payment Date, Redemption Date or Stated
Maturity, as the case may be.

                                  ARTICLE  TWO

                                 SECURITY FORMS

SECTION 201.     Forms Generally.

         The Registered Securities, if any, of each series and the Bearer
Securities, if any, of each series and related coupons shall be in
substantially the form (including temporary or permanent global form) as shall
be established by or pursuant to a Board Resolution or in one or more
indentures supplemental hereto, in each case with such appropriate insertions,
omissions, substitutions and other variations as are required or permitted by
this Indenture, and may have such letters, numbers or other marks of
identification and such legends or endorsements placed thereon as may be
required to comply with law, or with the rules of any securities exchange or to
conform to general usage, all as may, consistently herewith, be determined by
the officers executing such Securities or coupons, as evidenced by their
execution of the Securities or coupons.  If temporary Securities of any series
are issued in global form as permitted by Section 304, the form thereof shall
be established as provided in the preceding sentence.  A copy of the Board
Resolution establishing the forms of Securities or coupons of any series (or
any such temporary global Security) shall be certified by the Secretary or an
Assistant Secretary of the Company and delivered to the Trustee at or prior to
the delivery of the Company Order contemplated by Section 303 for the
authentication and delivery of such Securities (or any such temporary global
Security) or coupons.

         Unless otherwise specified as contemplated by Section 301, Securities
in bearer form shall have interest coupons attached.





                                      -11-
<PAGE>   18
         The definitive Securities and coupons, if any, shall be printed,
lithographed or engraved on steel engraved borders or may be produced in any
other manner, all as determined by the officers executing such Securities or
coupons, as evidenced by their execution of such Securities or coupons.

SECTION 202.     Form of Trustee's Certificate of Authentication.

         The Trustee's certificate of authentication shall be in substantially
the following form:

         "This is one of the Securities of the series designated therein
referred to in the within-mentioned Indenture.

                                           BANK OF MONTREAL TRUST COMPANY,
                                           as Trustee


                                           By 
                                              ----------------------------------
                                                   Authorized Signature."


SECTION 203.     Securities in Global Form.

         If Securities of a series are issuable in global form, as specified in
the manner contemplated by Section 301, then, notwithstanding clause (10) of
Section 301 and the provisions of Section 302, any such Security shall
represent such of the Outstanding Securities of such series as shall be
specified therein and may provide that it shall represent the aggregate amount
of Outstanding Securities from time to time endorsed thereon and that the
aggregate amount of Outstanding Securities represented thereby may be reduced
to reflect exchanges.  Any endorsement of a Security in global form to reflect
the amount, or any increase or decrease in the amount, of Outstanding
Securities represented thereby shall be made by the Trustee in such manner and
upon instructions given by such Person or Persons as shall be specified therein
or in the Company Order to be delivered to the Trustee pursuant to Section 303
or Section 304.  Subject to the provisions of Section 303 and, if applicable,
Section 304, the Trustee shall deliver and redeliver any Security in permanent
global form in the manner and upon instructions given by the Person or Persons
specified therein or in the applicable Company Order.  If a Company Order
pursuant to Section 303 or 304 has been, or simultaneously is, delivered, any
instructions by the Company with respect to endorsement or delivery or
redelivery of a Security in global form shall be in writing but need not comply
with Section 102 and need not be accompanied by an Opinion of Counsel.

         The provisions of the last sentence of Section 303 shall apply to any
Security represented by a Security in global form if such Security was never
issued and sold by the Company and the Company delivers to the Trustee the
Security in global form together with written instructions (which need not
comply with Section 102 and need not be accompanied by an Opinion of Counsel)
with regard to the reduction in the principal amount of Securities represented
thereby, together with the written statement contemplated by the last sentence
of Section 303.

         Notwithstanding the provisions of Sections 201 and 307, unless
otherwise specified as contemplated by Section 301, payment of principal of and
any premium and interest on any Security in permanent global form shall be made
to the Person or Persons specified therein.

SECTION 204.     Form of Legend for Book-Entry Securities.

         Any Book-Entry Security authenticated and delivered  hereunder shall
bear a legend in substantially the following form:





                                      -12-
<PAGE>   19
         "This Security is a Book-Entry Security within the meaning of the
Indenture hereinafter referred to and is registered in the name of a Depository
or a nominee of a Depository.  This Security is exchangeable for Securities
registered in the name of a Person other than the Depository or its nominee
only in the limited circumstances described in the Indenture, and no transfer
of this Security (other than a transfer of this Security as a whole by the
Depository to a nominee of the Depository or by a nominee of the Depository to
the Depository or another nominee of the Depository) may be registered except
in such limited circumstances."


                                 ARTICLE THREE

                                 THE SECURITIES

SECTION 301.     Amount Unlimited; Issuable in Series.

         The aggregate principal amount of Securities which may be
authenticated and delivered under this Indenture is unlimited.

         The Securities may be issued in one or more series, and each such
series shall rank equally and pari passu with each other series.  There shall
be established in or pursuant to a Board Resolution and, subject to Section
303, set forth, or determined in the manner provided, in an Officers'
Certificate, or established in one or more indentures supplemental hereto,
prior to the issuance of Securities of any series:

                 (1)      the title of the Securities of the series (which
         shall distinguish the Securities of the series from all other
         Securities);

                 (2)      any limit upon the aggregate principal amount of the
         Securities of the series which may be authenticated and delivered
         under this Indenture (except for Securities authenticated and
         delivered upon registration of transfer of, or in exchange for, or in
         lieu of, other Securities of the series pursuant to Section 304, 305,
         306, 906 or 1107 and except for any Securities which, pursuant to
         Section 303, are deemed never to have been authenticated and delivered
         hereunder);

                 (3)      whether Securities of the series are to be issuable
         as Registered Securities, Bearer Securities or both, whether any
         Securities of the series are to be issuable initially in temporary
         global form and whether any Securities of the series are to be
         issuable in permanent global form, as Book Entry Securities, or
         otherwise, with or without coupons, and, if so, whether beneficial
         owners of interests in any such permanent global Security may exchange
         such interests for Securities of such series and of like tenor of any
         authorized form and denomination and the circumstances under which any
         such exchanges may occur, if other than in the manner provided in
         Section 305;

                 (4)      the Person to whom any interest on any Registered
         Security of the series shall be payable, if other than the Person in
         whose name that Security (or one or more Predecessor Securities) is
         registered at the close of business on the Regular Record Date for
         such interest, the manner in which, or the Person to whom, any
         interest on any Bearer Security  of the series shall be payable, if
         otherwise than upon presentation and surrender of the coupons
         appertaining thereto as they severally mature, and the extent to
         which, or the manner in which, any interest payable on a temporary
         global Security on an Interest Payment Date will be paid if other than
         in the manner provided in Section 304;

                 (5)      the date or dates on which the principal of (and
         premium, if any, on) the Securities of the series is payable or the
         method of determination thereof;





                                      -13-
<PAGE>   20
                 (6)      the rate or rates at which the Securities of the
         series shall bear interest, if any, or the method by which such rate
         shall be determined, the date or dates from which any such interest
         shall accrue, the Interest Payment Dates on which any such interest
         shall be payable, the Regular Record Date for any interest payable on
         any Registered Securities on any Interest Payment Date and whether,
         and under what circumstances, additional amounts with respect to such
         Securities shall be payable as set forth in Section 1004;

                 (7)      the place or places where, subject to the provisions
         of Section 1002, the principal of and any premium and interest on
         Securities of the series shall be payable, any Registered Securities
         of the series may be surrendered for registration of transfer,
         Securities of the series may be surrendered for exchange and notices
         and demands to or upon the Company in respect of the Securities of the
         series and this Indenture may be served;

                 (8)      the right, if any, of the Company to redeem
         Securities of the series, in whole or in part, at its option and the
         period or periods within which, the price or prices at which and the
         terms and conditions upon which Securities of the series may be so
         redeemed;

                 (9)      the obligation, if any, of the Company to redeem,
         purchase, or repay Securities of the series pursuant to any mandatory
         redemption, sinking fund or analogous provisions or at the option of a
         Holder thereof and the period or periods within which, the price or
         prices at which and the terms and conditions upon which Securities of
         the series shall be redeemed, purchased or repaid, in whole or in
         part, pursuant to such obligation;

                 (10)     the denominations in which any Registered Securities
         of the series shall be issuable, if other than denominations of $1,000
         and any integral multiple thereof, and the denomination or
         denominations in which any Bearer Securities of the series shall be
         issuable, if other than the denomination of $5,000;

                 (11)     the currency or currencies, including composite
         currencies, in which payment of the principal of and any premium and
         interest on any Securities of the series shall be payable if other
         than the currency of the United States and the manner of determining
         the equivalent thereof in the currency of the  United States for
         purposes of the definition of "Outstanding" in Section  101;

                 (12)     if the amount of payments of principal of and any
         premium or interest on any Securities of the series may be determined
         with reference to an index, the manner in which such amounts shall be
         determined;

                 (13)     if other than the principal amount thereof, the
         portion of the principal amount of any Securities of the series which
         shall be payable upon declaration of acceleration of the Maturity
         thereof pursuant to Section 502;

                 (14)     if the principal of and any premium or interest on
         the Securities of the series are to be payable, at the election of the
         Company or a Holder thereof, in a currency or currencies, including
         composite currencies, other than that or those in which the Securities
         are stated to be payable, the currency or currencies in which payment
         of the principal of and any premium and interest on Securities of such
         series as to which such election is made shall be payable, and the
         periods within which and the terms and conditions upon which such
         election is to be made;

                 (15)     whether the Securities of the series shall be issued
         upon original issuance in whole or in part in the form of one or more
         Book-Entry Securities and, in such case, (a) the Depository with
         respect to such Book-Entry Security or Securities and (b) the
         circumstances under which any such Book-Entry Security may be
         exchanged for Securities registered in the name of, and any





                                      -14-
<PAGE>   21
         transfer of such Book-Entry Security may be registered to, a Person
         other than such Depository or its nominee, if other than as set forth
         in Section 305;

                 (16)     if either or both of the provisions of Section 1302
         or 1303 are applicable to the Securities of such series and any
         additional means of discharge pursuant to Section 1302 or 1303 and any
         additional conditions to the provisions of Section 1302 or 1303;

                 (17)     any other Events of Default or covenants with respect
         to the Securities of such series or any deletion or modifications to
         the Events of Default or covenants set forth herein with respect to
         the Securities of such series; and

                 (18)     any other terms of the series (which terms shall not
         be inconsistent with the provisions of this Indenture except as
         permitted by Section 901(5)).

         All Securities of any one series and the coupons appertaining to any
Bearer Securities of such series shall be substantially identical except, in
the case of Registered Securities, as to denomination and except as may
otherwise be provided in or pursuant to the Board Resolution referred to above
and (subject to Section 303) set forth, or determined in the manner provided,
in the Officers' Certificate referred to above or in any such indenture
supplemental hereto.

         If any of the terms of the series are established by action taken
pursuant to a Board Resolution, a copy of an appropriate record of such action
shall be certified by the Secretary or an Assistant Secretary of the Company
and delivered to the Trustee at or prior to the delivery of the Officers'
Certificate setting forth the terms of the series.

SECTION 302.     Denominations.

         Unless otherwise provided as contemplated by Section 301 with respect
to any series of Securities, any Registered Securities of a series shall be
issuable in denominations of $1,000 and any integral multiple thereof and any
Bearer Securities of a series shall be issuable in the denomination of $5,000.

SECTION 303.     Execution, Authentication, Delivery and Dating.

         The Securities shall be executed on behalf of the Company by its
Chairman of the Board,  its President, its Treasurer or its Chief Financial
Officer, under its corporate seal reproduced thereon attested by its Secretary
or one of its Assistant Secretaries.  The signature of any of these officers on
the Securities may be manual or facsimile.  Coupons shall bear the facsimile
signature of the Treasurer or any Assistant Treasurer of the Company.

         Securities and coupons bearing the manual or facsimile signatures of
individuals who were at any time the proper officers of the Company shall bind
the Company, notwithstanding that such individuals or any of them have ceased
to hold such offices prior to the authentication and delivery of such
Securities or did not hold such offices at the date of such Securities or
coupons.

         At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series, together with
any coupons appertaining thereto, executed by the Company to the Trustee for
authentication, together with a Company Order for the authentication and
delivery of such Securities, and the Trustee in accordance with the Company
Order shall authenticate and deliver such Securities; provided, however, that,
unless otherwise provided with respect to such series, in connection with its
original issuance, during the "restricted period" (as defined in Section
1.163-5(c)(2)(i)(D)(7) of the United States Treasury Regulations) (the
"restricted period") no Bearer Security shall be mailed or otherwise delivered
to any location in the United States; and provided, further, that, unless
otherwise provided with





                                      -15-
<PAGE>   22
respect to such series, a Bearer Security may be delivered in connection with
its original issuance only if the Person entitled to receive such Bearer
Security shall have furnished a certificate in the form set forth in Exhibit A
to this Indenture, dated no earlier than the Certification Date, or such other
form of certification as shall contain such information as may then be required
by U.S. federal income tax law or as shall be otherwise provided with respect
to a series.  If any Security shall be represented by a permanent global Bearer
Security, then, for purposes of this Section and Section 304, the notation of a
beneficial owner's interest therein upon original issuance of such Security or
upon exchange of a portion of a temporary global Security shall be deemed to be
delivery in connection with its original issuance during the restricted period
of such beneficial owner's interest in such permanent global Security.  Except
as permitted by Section 306, the Trustee shall not authenticate and deliver any
Bearer Security unless all appurtenant coupons for interest then matured have
been detached and cancelled.

         In authenticating Securities, the Trustee shall be entitled to
receive, and (subject to  Section 601) shall be fully protected in relying
upon, an Opinion of Counsel stating:

                 (a)      that the forms of such Securities and coupons
         established by or pursuant to a Board Resolution as contemplated by
         Section 201 have been established in conformity with the provisions of
         this Indenture;

                 (b)      if the terms of such Securities and any coupons have
         been established by or pursuant to a Board Resolution as permitted by
         Section 301, that such terms have been established in conformity with
         the provisions of this Indenture; and

                 (c)      that such Securities, together with any coupons
         appertaining thereto, when authenticated and delivered by the Trustee
         and issued by the Company in the manner and subject to any conditions
         specified in such Opinion of Counsel, will constitute valid and
         legally binding obligations of the Company enforceable in accordance
         with their terms, subject to bankruptcy, insolvency, fraudulent
         transfer, reorganization and other laws of general applicability
         relating to or affecting creditors' rights and to general equity
         principles.

Such Opinion of Counsel shall also cover such other matters as the Trustee may
reasonably request.

         The Trustee shall not be required to authenticate such Securities the
forms or terms of which have been established by or pursuant to a Board
Resolution if the issue of such Securities pursuant to this Indenture will
affect the Trustee's own rights, duties or immunities under the Securities and
this Indenture or otherwise in a manner which is not reasonably acceptable to
the Trustee.

         Notwithstanding the provisions of Section 301 and of the two preceding
paragraphs, if all Securities of a series are not to be originally issued at
one time, it shall not be necessary to deliver the Officers' Certificate
otherwise required pursuant to Section 301 or the Company Order and Opinion of
Counsel otherwise required pursuant to such preceding paragraphs at or prior to
the time of authentication of each Security of such series if such documents
are delivered at or prior to the authentication upon issuance of the first
Security of such series to be issued.

         After the original issuance of the first Security of such series to be
issued, any separate request by the Company that the Trustee authenticate
Securities of such series for original issuance will be deemed to be a
certification by the Company (which, subject to Section 601, the Trustee shall
be fully protected in relying on) that it is in compliance with all conditions
precedent provided for in this Indenture relating to the authentication and
delivery of such Securities.

         Each Registered Security shall be dated the date of its
authentication; and each Bearer Security shall be dated as of the date of
original issuance of the first Security of such series to be issued.





                                      -16-
<PAGE>   23
         No Security or coupon shall be entitled to any benefit under this
Indenture or be valid or obligatory for any purpose unless there appears on
such Security, or the Security to which such coupon appertains, a certificate
of authentication substantially in the form provided for herein executed by the
Trustee by manual signature, and such certificate upon any Security shall  be
conclusive evidence, and the only evidence, that such Security has been duly
authenticated and delivered hereunder.  Notwithstanding the foregoing, if any
Security shall have been authenticated and delivered hereunder but never issued
and sold by the Company, and the Company  shall deliver such Security to the
Trustee for cancellation as provided in Section 309 together with a written
statement (which need not comply with Section 102 and need not be accompanied
by an Opinion of Counsel) stating that such Security has never been issued and
sold by the Company, for all purposes of this Indenture such Security shall be
deemed never to have been authenticated and delivered hereunder and shall never
be entitled to the benefits of this Indenture.

SECTION 304.     Temporary Securities.

         Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten or
otherwise produced, in any authorized denomination, substantially of the tenor
of the definitive Securities in lieu of which they are issued, in registered
form or, if authorized, in bearer form with one or more coupons or without
coupons, and with such appropriate insertions, omissions, substitutions and
other variations as the officers executing such Securities may determine, as
evidenced by their execution of such Securities.  In the case of any series
issuable as Bearer Securities, such temporary Securities may be in global form.
A temporary Bearer Security shall be delivered only in compliance with the
conditions set forth in Section 303.

         Except in the case of temporary Securities in global form (which shall
be exchanged in accordance with the provisions of the following paragraphs), if
temporary  Securities of any series are issued, the Company will cause
definitive Securities of that series to be prepared without unreasonable delay.
After the preparation of definitive Securities of such series, the temporary
Securities of such series shall be exchangeable for definitive Securities of
such series upon surrender of the temporary Securities of such series at the
office or agency of the Company maintained pursuant to Section 1002 in a Place
of Payment for such series for the purpose of exchanges of Securities of such
series without charge to the Holder.  Upon surrender for cancellation of any
one or more temporary Securities of any series (accompanied by any unmatured
coupons appertaining thereto),  the Company shall execute and the Trustee shall
authenticate and deliver in exchange therefor a like aggregate principal amount
of definitive Securities of the same series and of like tenor of authorized
denominations; provided, however, that no definitive Bearer Security shall be
issued in exchange for a temporary Registered Security.

         If temporary Securities of any series are issued in global form, any
such temporary global Security shall, unless otherwise provided therein, be
delivered to the London office of a depositary or common depositary (the
"Common Depositary"), for the benefit of Euro-clear and CEDEL S.A., for credit
to the respective accounts of the beneficial owners of such Securities (or to
such other accounts as they may direct).

         Without unnecessary delay but in any event not later than the date
specified in, or determined pursuant to the terms of, any such temporary global
Security of a series (the "Exchange Date"), the Company shall deliver to the
Trustee definitive Securities of that series in aggregate principal amount
equal to the principal amount of such temporary global Security, executed by
the Company.  On or after the Exchange Date such temporary global Security
shall be surrendered by the Common Depositary to the Trustee, as the Company's
agent for such purpose, to be exchanged, in whole or from time to time in part,
for definitive Securities of that series without charge and the Trustee shall
authenticate and deliver, in exchange for each portion of such temporary global
Security, a like aggregate principal amount of definitive Securities of the
same series of authorized denominations and of like tenor as the portion of
such temporary global Security to be exchanged; provided, however, that, unless
otherwise specified in such temporary global Security, upon





                                      -17-
<PAGE>   24
such presentation by the Common Depositary, such temporary global Security
shall be accompanied by a certificate dated the Exchange Date or a subsequent
date and signed by Euro-clear as to the portion of such temporary global
Security held for its account then to be exchanged and a certificate dated the
Exchange Date or a subsequent date and signed by CEDEL S.A. as to the portion
of such temporary global Security held for its account then to be exchanged,
each in the form set forth in Exhibit B to this Indenture, or such other form
of certification as shall contain such information as may then be required by
U.S. federal income tax law or as shall be otherwise provided with respect to a
series.  The definitive Securities to be delivered in exchange for any such
temporary global Security shall be in bearer form, registered form, permanent
global bearer form or permanent global registered form, or any combination
thereof, as specified as contemplated by Section 301, and if any combination
thereof is so specified, as requested by the beneficial owner thereof;
provided, however, that no definitive Bearer Security or permanent global
Security shall be delivered in exchange for a temporary Bearer Security except
in compliance with the conditions set forth in Section 303.

         Unless otherwise specified in the temporary global Security, the
interest of a beneficial owner of Securities of a series in a temporary global
Security shall be exchanged on the Exchange Date for definitive Securities (and
where the form of the definitive Securities is not specified by the Holder for
an interest in a permanent global Security) of the same series and of like
tenor unless, on or prior to the Exchange Date, such beneficial owner has not
delivered to Euro-clear or CEDEL S.A., as the case may be, a certificate in the
form set forth in Exhibit A to this Indenture, or such other form of
certification as shall contain such information as may then be required by U.S.
federal income tax law or as shall be otherwise provided with respect to a
series, dated no earlier than the Certification Date, copies of which
certificate shall be available from the offices of Euro-clear and CEDEL S.A.,
the Trustee, any Authenticating Agent appointed for such series of Securities
and each Paying Agent, and after the Exchange Date, the interest of a
beneficial owner of Securities of a series in a temporary global Security shall
be exchanged for definitive Securities (and where the form of the definitive
Securities is not specified by the Holder for an interest in a permanent global
Security) of the same series and of like tenor following such beneficial
owner's delivery to Euro-clear or CEDEL S.A., as the case may be, of a
certificate in the form set forth in Exhibit A to this Indenture, or such other
form of certification as shall contain such information as may then be required
by U.S. federal income tax law or as shall be otherwise provided with respect
to a series, dated no earlier than the Certification Date.  Unless otherwise
specified in such temporary global Security, any exchange shall be made free of
charge to the beneficial owners of such temporary global Security, except that
a Person receiving definitive Securities must bear the cost of insurance,
postage, transportation and the like in the event that such Person does not
take delivery of such definitive Securities in person at the offices of
Euro-clear or CEDEL S.A. Definitive Securities in bearer form to be delivered
in exchange for any portion of a temporary global Security shall be delivered
only outside the United States.

         Until exchanged in full  as hereinabove provided, the temporary
Securities of any series shall in all respects be entitled to the same benefits
under this Indenture as definitive Securities of the same series and of like
tenor authenticated and delivered hereunder, except that, unless otherwise
specified as contemplated by Section 301, interest payable on a temporary
global Security on an Interest Payment Date for Securities of such series shall
be payable to Euro-clear and CEDEL S.A. on such Interest Payment Date upon
delivery by Euro-clear and CEDEL S.A. to the Trustee of a certificate or
certificates in the form set forth in Exhibit B to this Indenture, or such
other form of certification as shall contain such information as may then be
required by U.S. federal income tax law or as shall be otherwise provided with
respect to a series, for credit without further interest on or after such
Interest Payment Date to the respective accounts of the Persons who are the
beneficial owners of such temporary global Security on such Interest Payment
Date and who have each delivered to Euro-clear or CEDEL S.A., as the case may
be, a certificate in the form set forth in Exhibit A to this Indenture; and
except that, unless otherwise specified as contemplated by Section 301,
interest payable on a temporary global Security on an Interest Payment Date for
Securities of such series occurring on or after the applicable Exchange Date
shall be payable to Euro-clear and CEDEL S.A. on such Interest Payment Date but
shall not be credited by Euro-clear or CEDEL S.A. to the account of any Person
who is a beneficial owner of such temporary global Security on such Interest
Payment Date until such Person





                                      -18-
<PAGE>   25
shall exchange his interest in such temporary global Security in full as
hereinabove provided.  Any interest so received by Euro-clear and CEDEL S.A.
and not paid as herein provided shall be returned to the Trustee immediately
prior to the expiration of two years after such Interest Payment Date in order
to be repaid to the Company in accordance with Section 1003.

SECTION 305.     Registration, Registration of Transfer and Exchange.

         The Company shall cause to be kept at an office or agency to be
maintained by the Company in accordance with Section 1002 a register (being the
combined register of the Security Registrar and all transfer agents designated
pursuant to Section 1002 for the purpose of registration of transfer of
Securities and sometimes collectively referred to as the "Security Register")
in which, subject to such reasonable regulations as it may prescribe, the
Company shall provide for the registration of each series of Registered
Securities and the registration of transfers of such Registered Securities.
The Company shall serve initially as "Security Registrar" for the purpose of
registering Registered Securities and transfers of Registered Securities as
herein provided.

         Upon surrender for registration of transfer of any Registered Security
of any series at the office or agency of the Company maintained pursuant to
Section 1002 for such purpose in a Place of Payment for such series, the
Company shall execute, and the Trustee shall authenticate and deliver, in the
name of the designated transferee or transferees, one or more new Registered
Securities of the same series of any authorized denominations and of a like
aggregate principal amount and tenor.

         At the option of the Holder, Registered Securities of any series may
be exchanged for other Registered Securities of the same series of any
authorized denominations and of a like aggregate principal amount and tenor,
upon surrender of the Securities to be exchanged at any such office or agency.
Whenever any Securities are so surrendered for exchange, the Company shall
execute, and the Trustee shall authenticate and deliver, the Securities which
the Holder making the exchange is entitled to receive.  Unless otherwise
provided with respect to any series of Securities, Bearer Securities may not be
issued in exchange for Registered Securities.

         At the option of the Holder, Bearer Securities of any series may be
exchanged for Registered Securities of the same series of any authorized
denominations and of a like aggregate principal amount and tenor, upon
surrender of the Bearer Securities to be exchanged at any such office or
agency, with all unmatured coupons and all matured coupons in default thereto
appertaining.  If the Holder of a Bearer Security is unable to produce any such
unmatured coupon or coupons or matured coupon or coupons in default, such
exchange may be effected if the Bearer Securities are accompanied by payment in
funds acceptable to the Company in an amount equal to the face amount of such
missing coupon or coupons, or the surrender of such missing coupon or coupons
may be waived by the Company and the Trustee if there is furnished to them such
security or indemnity as they may require to save each of them and any Paying
Agent harmless.  If thereafter the Holder of such Security shall surrender to
any Paying Agent any such missing coupon in respect of which such a payment
shall have been made, such Holder shall be entitled to receive the amount of
such payment; provided, however, that, except as otherwise provided in Section
1002, interest represented by coupons shall be payable only upon presentation
and surrender of those coupons at an office or agency located outside the
United States.  Notwithstanding the foregoing, in case a Bearer Security of any
series is surrendered at any such office or agency in exchange for a Registered
Security of the same series and like tenor after the close of business at such
office or agency on (i) any Regular Record Date and before the opening of
business at such office or agency on the relevant Interest Payment Date, or
(ii) any Special Record Date and before the opening of business at such office
or agency on the related proposed date for payment of Defaulted Interest, such
Bearer Security shall be surrendered without the coupon relating to such
Interest Payment Date or proposed date for payment, as the case may be, and
interest or Defaulted Interest, as the case may be, will not be payable on such
Interest Payment Date or proposed date for payment, as the





                                      -19-
<PAGE>   26
case may be, in respect of the Registered Security issued in exchange for such
Bearer Security but will be payable only to the Holder of such coupon when due
in accordance with the provisions of this Indenture.

         Whenever any Securities are so surrendered for exchange, the Company
shall execute, and the Trustee shall authenticate and deliver, the Securities
which the Holder making the exchange is entitled to receive.

         Notwithstanding the foregoing, except as otherwise specified as
contemplated by Section 301, any permanent global Security shall be
exchangeable only as provided in this paragraph.  If the beneficial owners of
interests in a permanent global Security are entitled to exchange such
interests for Securities of such series and of like tenor and principal amount
of another authorized form and denomination, as specified as contemplated by
Section 301, then without unnecessary delay but in any event not later than the
earliest date on which such interests may be so exchanged, the Company shall
deliver to the Trustee definitive Securities of that series in an aggregate
principal amount equal to the principal amount of such permanent global
Security, executed by the Company.  On or after the earliest date on which such
interests may be so exchanged, such permanent global Security shall be
surrendered from time to time in accordance with instructions given to the
Trustee and the Common Depositary (which instructions shall be in writing but
need not comply with Section 102 or be accompanied by an Opinion of Counsel) by
the Common Depositary or such other depositary or Common Depositary as shall be
specified in the Company Order with respect thereto to the Trustee, as the
Company's agent for such purpose, to be exchanged, in whole or in part, for
definitive Securities of the same series without charge and the Trustee shall
authenticate and deliver, in exchange for each portion of such permanent global
Security, a like aggregate principal amount of definitive Securities of the
same series of authorized denominations and of like tenor as the portion of
such permanent global Security to be exchanged which, unless the Securities of
the series are not issuable both as Bearer Securities and as Registered
Securities, as specified as contemplated by Section 301, shall be in the form
of Bearer Securities or Registered Securities, or any combination thereof, as
shall be specified by the beneficial owner thereof; provided, however, that no
such exchanges may occur during a period beginning at the opening of business
15 days before any selection of Securities of that series is to be redeemed and
ending on the relevant Redemption Date; and provided, further, that no Bearer
Security delivered in exchange for a portion of a permanent global Security
shall be mailed or otherwise delivered to any location in the United States.
Promptly following any such exchange in part, such permanent global Security
shall be returned by the Trustee to the Common Depositary or such other
depositary or Common Depositary referred to above in accordance with the
instructions of the Company referred to above.  If a Registered Security is
issued in exchange for any portion of a permanent global Security after the
close of business at the office or agency where such exchange occurs on (i) any
Regular Record Date and before the opening of business at such office or agency
on the relevant Interest Payment Date, or (ii) any Special Record Date and
before the opening of business at such office or agency on the related proposed
date for payment of Defaulted Interest, interest or Defaulted Interest, as the
case may be, will not be payable on such Interest Payment Date or proposed date
for payment, as the case may be, in respect of such Registered Security, but
will be payable on such Interest Payment Date or proposed date for payment, as
the case may be, only to the Person to whom interest in respect of such portion
of such permanent global Security is payable in accordance with provisions of
this Indenture.

         All Securities issued upon any registration of transfer or exchange of
Securities shall be the valid obligations of the Company evidencing the same
debt, and entitled to the same benefits under this Indenture, as the Securities
surrendered upon such registration of transfer or exchange.

         Every Registered Security presented or surrendered for registration of
transfer or exchange shall (if so required by the Company or the Trustee or any
transfer agent) be duly endorsed, or be accompanied by a written instrument of
transfer in form satisfactory to the Company and the Security Registrar or any
transfer agent duly executed, by the Holder thereof or his attorney duly
authorized in writing.





                                      -20-
<PAGE>   27
         No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchanges pursuant to Section 304, 906 or 1107 not involving any transfer.

         The Company shall not be required (i) to issue, register the transfer
of or exchange Securities of any series during a period beginning at the
opening of business 15 days before any selection of Securities of that series
to be redeemed and ending at the close of business on (A) if Securities of the
series are issuable only as Registered Securities, the day of the mailing of
the relevant notice of redemption and (B) if Securities of the series are
issuable as Bearer Securities, the day of the first publication of the relevant
notice of redemption, or if Securities of the series are also issuable as
Registered Securities and there is no publication, the mailing of the relevant
notice of redemption, or (ii) to register the transfer of or exchange any
Registered Security so selected for redemption, in whole or in part, except the
unredeemed portion of any Registered Security being redeemed in part, or (iii)
to exchange any Bearer Security so selected for redemption except that such a
Bearer Security may be exchanged for a Registered Security of that series and
like tenor, provided that such Registered Security shall be simultaneously
surrendered for redemption.

         Notwithstanding the foregoing and except as otherwise specified or
contemplated by Section 301, any Book-Entry Security shall be exchangeable
pursuant to this Section 305 or Sections 304, 906 and 1107 for Securities
registered in the name of, and a transfer of a Book-Entry Security of any
series may be registered to, any Person other than the Depository for such
Security or its nominee only if (i) such Depository notifies the Company that
it is unwilling or unable to continue as Depository for such Book-Entry
Security or if at any time such Depository ceases to be a clearing agency
registered under the Securities Exchange Act of 1934, as amended, (ii) the
Company executes and delivers to the Trustee a Company Order that such
Book-Entry Security shall be so exchangeable and the transfer thereof so
registrable or (iii) there shall have occurred and be continuing an Event of
Default with respect to the Securities of such series.  Upon the occurrence in
respect of any Book-Entry Security of any series of any one or more of the
conditions specified in clause (i), (ii) or (iii) of the preceding sentence or
such other conditions as may be specified, such Book-Entry Security may be
exchanged for Securities registered in the names of, and the transfer of such
Book-Entry Security may be registered to, such Persons (including Persons other
than the Depository with respect to such series and its nominees) as such
Depository shall direct.  Notwithstanding any other provision of this
Indenture, any Security authenticated and delivered upon registration of
transfer of, or in exchange for, or in lieu of, any Book-Entry Security shall
also be a Book-Entry Security and shall bear the legend specified in Section
204 except for any Security authenticated and delivered in exchange for, or
upon registration of transfer of, a Book-Entry Security pursuant to the
preceding sentence.

SECTION 306.     Mutilated, Destroyed, Lost and Stolen Securities and Coupons.

         If any mutilated Security or a Security with a mutilated coupon
appertaining thereto is surrendered to the Trustee, the Company shall execute
and the Trustee shall authenticate and deliver in exchange therefor a new
Security of the same series and of like tenor and principal amount and bearing
a number not contemporaneously outstanding, with coupons corresponding to the
coupons, if any, appertaining to the surrendered Security.

         If there shall be delivered to the Company and the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any
Security or coupon and (ii) such security or indemnity as may be required by
them to save each of them and any agent of either of them harmless, then, in
the absence of notice to the Company or the Trustee that such Security or
coupon has been acquired by a bona fide purchaser, the Company shall execute
and the Trustee shall authenticate and deliver, in lieu of any such destroyed,
lost or stolen Security or in exchange for the Security to which a destroyed,
lost or stolen coupon appertains (with all appurtenant coupons not destroyed,
lost or stolen), a new Security of the same series and of like tenor and
principal amount and bearing a number not contemporaneously outstanding, with
coupons corresponding to





                                      -21-
<PAGE>   28
the coupons, if any, appertaining to such destroyed, lost or stolen Security or
to the Security to which such destroyed, lost or stolen coupon appertains.

         In case any such mutilated, destroyed, lost or stolen Security or
coupon has become or is about to become due and payable, the Company in its
discretion may, instead of issuing a new Security, pay such Security or coupon;
provided, however, that the principal of and any premium  and interest on
Bearer Securities shall, except as otherwise provided in Section 1002, be
payable only at an office or agency located outside the United States.

         Upon the issuance of any new Security under this Section, the Company
may require payment of a sum sufficient to cover any tax or other governmental
charge that may be imposed in relation thereto and any other expenses
(including the fees and expenses of the Trustee) connected therewith.

         Every new Security of any series with its coupons, if any, issued
pursuant to this Section in lieu of any destroyed, lost or stolen Security or
in exchange for a Security to which a destroyed, lost or stolen coupon
appertains, shall constitute an original additional contractual obligation of
the Company, whether or not the destroyed, lost or stolen Security and its
coupons, if any, or the destroyed, lost or stolen coupon shall be at any time
enforceable by anyone, and any such new Security and coupons, if any, shall be
entitled to all the benefits of this Indenture equally and proportionately with
any and all other Securities of that series and their coupons, if any, duly
issued hereunder.

         The provisions of this Section are exclusive and shall preclude (to
the extent lawful) all other rights and remedies with respect to the
replacement or payment of mutilated, destroyed, lost or stolen Securities or
coupons.

SECTION 307.     Payment of Interest; Interest Rights Preserved.

         Unless otherwise provided as contemplated by Section 301 with respect
to any series of Securities, interest on any Registered Security which is
payable, and is punctually paid or duly provided for, on any Interest Payment
Date shall be paid to the Person in whose name that Security (or one or more
Predecessor Securities) is registered at the close of business on the Regular
Record Date for such interest.  Unless otherwise so provided, at the option of
the Company, payment of interest on any Registered Security may be made by
check mailed on or before the due date to the address of the Person entitled
thereto as such address shall appear in the Security Register.

         Any interest on any Registered Security of any series which is
payable, but is not punctually paid or duly provided for, on any Interest
Payment Date (herein called "Defaulted Interest") shall forthwith cease to be
payable to the Holder on the relevant Regular Record Date by virtue of having
been such Holder, and such Defaulted Interest may be paid by the Company, at
its election in each case, as provided in clause (1) or (2) below:

                 (1)      The Company may elect to make payment of any
         Defaulted Interest to the Persons in whose names the Registered
         Securities of such series (or their respective Predecessor Securities)
         are registered at the close of business on a Special Record Date for
         the payment of such Defaulted Interest, which shall be fixed in the
         following manner.  The Company shall notify the Trustee in writing of
         the amount of Defaulted Interest proposed to be paid on each
         Registered Security of such series and the date of the proposed
         payment, and at the same time the Company shall deposit with the
         Trustee an amount of money equal to the aggregate amount proposed to
         be paid in respect of such Defaulted Interest or shall make
         arrangements satisfactory to the Trustee for such deposit prior to the
         date of the proposed payment, such money when deposited to be held in
         trust for the benefit of the Persons entitled to such Defaulted
         Interest as in this Clause provided.  Thereupon the Trustee shall fix
         a Special Record Date for the payment of such Defaulted Interest which
         shall be not more





                                      -22-
<PAGE>   29
         than 15 days and not less than 10 days prior to the date of the
         proposed payment and not less than 10 days after the receipt by the
         Trustee of the notice of the proposed payment.  The Trustee shall
         promptly notify the Company of such Special Record Date and, in the
         name  and at the expense of the Company, shall cause notice of the
         proposed payment of such Defaulted Interest and the Special Record
         Date therefor to be mailed, first-class postage prepaid, to each
         Holder of Registered Securities of such series at the address of such
         Holder as it appears in the Security Register, not less than 10 days
         prior to such Special Record Date.  Notice of the proposed payment of
         such Defaulted Interest and the Special Record Date therefor having
         been so mailed, such Defaulted Interest shall be paid to the Persons
         in whose names the Registered Securities of such series (or their
         respective Predecessor Securities) are registered at the close of
         business on such Special Record Date and shall no longer be payable
         pursuant to the following clause (2).

                 (2)      The Company may make payment of any Defaulted
         Interest on the Registered Securities of any series in any other
         lawful manner not inconsistent with the requirements of any securities
         exchange on which such Securities may be then listed, and upon such
         notice as may be required by such exchange, if, after notice given by
         the Company to the Trustee of the proposed payment pursuant to this
         Clause, such manner of payment shall be deemed practicable by the
         Trustee.

         Subject to the foregoing provisions of this Section and Section 305,
each Security delivered under this Indenture upon registration of transfer of
or in exchange for or in lieu of any other Security shall carry the rights to
interest accrued and unpaid, and to accrue, which were carried by such other
Security.

SECTION 308.     Persons Deemed Owners.

         Prior to due presentment of a Registered Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name such Registered Security is registered as
the owner of such Registered Security for the purpose of receiving payment of
principal of (and premium, if any) and (subject to Sections 305 and 307) any
interest on such Registered Security and for all other purposes whatsoever,
whether or not such Security be overdue, and none of the Company, the Trustee
nor any agent of the Company or the Trustee shall be affected by notice to the
contrary.

         Title to any Bearer Security and any coupons appertaining thereto
shall pass by delivery.  The Company, the Trustee and any agent of the Company
or the Trustee may treat the bearer of any Bearer Security and the bearer of
any coupon as the owner of such Bearer Security or coupon for the purpose of
receiving payment thereof or on account thereof and for all other purposes
whatsoever, whether or not such Security or coupon be overdue, and neither the
Company, the Trustee nor any agent of the Company or the Trustee shall be
affected by notice to the contrary.

         Notwithstanding the foregoing, with respect to any Book-Entry
Security, nothing herein shall prevent the Company, the Trustee, any agent of
the Company or any agent of the Trustee from giving effect to any written
certification, proxy or other authorization furnished by a Depository or
impair, as between a Depository and holders of beneficial interests in any
Book-Entry Security, the operation of customary practices governing the
exercise of the rights of the Depository (or its nominee) as Holder of such
Book-Entry Security.

SECTION 309.     Cancellation.

         All Securities and coupons surrendered for payment, redemption,
registration of transfer or exchange or for credit against any sinking fund
payment shall, if surrendered to any Person other than the Trustee, be
delivered to the Trustee.  All Registered Securities and matured coupons so
delivered shall be promptly





                                      -23-
<PAGE>   30
cancelled by the Trustee.  All Bearer Securities  and unmatured coupons so
delivered shall be held by the Trustee and, upon instruction by a Company
Order, shall be cancelled or held for reissuance.  Bearer Securities and
unmatured coupons held for reissuance may be reissued only in replacement of
mutilated, lost, stolen or destroyed Bearer Securities of the same series and
like tenor or the related coupons pursuant to Section 306.  All Bearer
Securities and unmatured coupons held by the Trustee pending such cancellation
or reissuance shall be deemed to be delivered for all purposes of this
Indenture and the Securities.  The Company may at any time deliver to the
Trustee for cancellation any Securities previously authenticated and delivered
hereunder which the Company may have acquired in any manner whatsoever, and may
deliver to the Trustee (or to any other Person for delivery to the Trustee) for
cancellation any Securities previously authenticated hereunder which the
Company has not issued and sold, and all Securities so delivered shall be
promptly cancelled by the Trustee.  No Securities shall be authenticated in
lieu of or in exchange for any Securities cancelled as provided in this
Section, except as expressly permitted by this Indenture.  All cancelled
Securities and coupons held by the Trustee shall be disposed of in accordance
with its customary practice.

SECTION 310.     Computation of Interest.

         Except as otherwise specified as contemplated by Section 301 for
Securities of any series, interest on the Securities of each series shall be
computed on the basis of a 360-day year of twelve 30-day months.


                                 ARTICLE  FOUR

                           SATISFACTION AND DISCHARGE

SECTION 401.     Satisfaction and Discharge of Indenture.

         This Indenture shall upon Company Request cease to be of further
effect with respect to Securities of a series (except as to any surviving
rights of registration of transfer or exchange of Securities herein expressly
provided for, and any right to receive additional amounts, as provided in
Section 1004), and the Trustee, at the expense of the Company, shall execute
proper instruments acknowledging satisfaction and discharge of this Indenture
with respect to Securities of a series, when

         (1)     either

                 (A)      all Securities of such series theretofore
         authenticated and delivered and all coupons, if any, appertaining
         thereto (other than (i) coupons appertaining to Bearer Securities
         surrendered for exchange for Registered Securities and maturing after
         such exchange, whose surrender is not required or has been waived as
         provided in Section 305, (ii) Securities and coupons which have been
         destroyed, lost or stolen and which have been replaced or paid as
         provided in Section 306, (iii) coupons appertaining to Securities
         called for redemption and maturing after the relevant Redemption Date,
         whose surrender has been waived as provided in Section 1106, and (iv)
         Securities and coupons for whose payment money has theretofore been
         deposited in trust or segregated and held in trust by the Company and
         thereafter repaid to the Company or discharged from such trust, as
         provided in Section 1003) have been delivered to the Trustee for
         cancellation; or

                 (B)      all such Securities and, in the case of (i) or (ii)
         below, any coupons appertaining thereto not theretofore delivered to
         the Trustee for cancellation

                          (i)     have become due and payable, or

                          (ii)    will become due and payable at their Stated 
                 Maturity within one year, or





                                      -24-
<PAGE>   31
                          (iii)   are to be called for redemption within one
                 year under arrangements satisfactory to the Trustee for the
                 giving of notice of redemption by the Trustee in the name, and
                 at the expense, of the Company;

         and the Company, in the case of (i), (ii) or (iii) above, has
         deposited or caused to be deposited with the Trustee as trust funds in
         trust for the purpose an amount sufficient to pay and discharge the
         entire indebtedness on such Securities and coupons not theretofore
         delivered to the Trustee for cancellation, for principal (and premium,
         if any) and any interest to the date of such deposit (in the case of
         Securities which have become due and payable) or to the Stated
         Maturity or Redemption Date, as the case may be;

         (2)     the Company has paid or caused to be paid all other sums
payable hereunder by the Company; and

         (3)     the Company has delivered to the Trustee an Officers'
Certificate and an Opinion of Counsel, each stating that all conditions
precedent herein provided for relating to the satisfaction and discharge of
this Indenture have been complied with.

         Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 607, the obligations of
the Trustee to any Authenticating Agent under Section 614 and, if money shall
have been deposited with the Trustee pursuant to clause (1)(B) of this Section,
the obligations of the Company under Sections 306, 610(e) and 701 and the
obligations of the Trustee under Section 402 and the last paragraph of Section
1003 shall survive.

SECTION 402.     Application of Trust Money.

         Subject to the provisions of the last paragraph of Section 1003, all
money deposited with the Trustee pursuant to Section 401 shall be held in trust
and applied by it, in accordance with the provisions of the Securities, the
coupons and this Indenture, to the payment, either directly or through any
Paying Agent (including the Company acting as its own Paying Agent) as the
Trustee may determine, to the Persons entitled thereto, of the principal and
any premium and interest for whose payment such money has been so deposited.


                                 ARTICLE  FIVE

                                    REMEDIES

SECTION 501.     Events of Default.

         "Event of Default," wherever used herein with respect to Securities of
any series, means any one of the following events (whatever the reason for such
Event of Default and whether it shall be voluntary or involuntary or be
effected by operation of law or pursuant to any judgment, decree or order, rule
or regulation of any administrative or governmental body), unless it is either
inapplicable to a particular series of Securities or it is specifically deleted
or modified in or pursuant to the terms of such series or in the form of
Security of such series:

                 (1)      default in the payment of any interest upon any
         Security of that series when it becomes due and payable, and
         continuation of such default for a period of 30 days; or

                 (2)      default in the payment of the principal of (or
         premium, if any, on) any Security of that series at its Maturity; or





                                      -25-
<PAGE>   32
                 (3)      default in the deposit of any sinking fund payment,
         when and as due by the terms of any Security of that series; or

                 (4)      default in the performance, or breach, of any
         covenant or warranty of the Company in this Indenture (other than a
         covenant or warranty a default in whose performance or whose breach is
         elsewhere in this Section specifically dealt with or which has
         expressly been included in this Indenture solely for the benefit of
         series of Securities other than that series), and continuation of such
         default or breach for a period of 90 days after there has been given,
         by registered or certified mail, to the Company by the Trustee or to
         the Company and the Trustee by the Holders of at least 25% in
         principal amount of the Outstanding Securities of that series a
         written notice specifying such default or breach and requiring it to
         be remedied and stating that such notice is a "Notice of Default"
         hereunder; or

                 (5)      the entry by a court having jurisdiction in the
         premises of (A) a decree or order for relief in respect of the Company
         in an involuntary case or proceeding under any applicable Federal or
         state bankruptcy, insolvency, reorganization or other similar law or
         (B) a decree or order adjudging the Company as bankrupt or insolvent,
         or approving as properly filed a petition seeking reorganization,
         arrangement, adjustment or composition of or in respect of the Company
         under any applicable Federal or state law, or appointing a custodian,
         receiver, liquidator, assignee, trustee, sequestrator or other similar
         official of the Company or of any substantial part of the property of
         the Company, or ordering the winding up or liquidation of its affairs,
         and the continuation of any such decree or order for relief or any
         such other decree or order unstayed and in effect for a period of 90
         consecutive days; or

                 (6)      the commencement by the Company of a voluntary case
         or proceeding under any applicable Federal or state bankruptcy,
         insolvency, reorganization or other similar law for the relief of
         debtors or of any other case or proceeding to be adjudicated as
         bankrupt or insolvent, or the consent by it to the entry of a decree
         or order for relief in respect of the Company in an involuntary case
         or proceeding under any applicable Federal or state bankruptcy,
         insolvency, reorganization or other similar law for the relief of
         debtors or the commencement of any bankruptcy or insolvency case or
         proceeding against the Company, or the filing by the Company of a
         petition or answer or consent seeking reorganization, arrangement,
         adjustment or composition of or in respect of the Company under any
         applicable Federal or state law, or the consent by the Company to the
         filing of such petition or to the appointment of or taking possession
         by  a custodian, receiver, liquidator, assignee, trustee, sequestrator
         or similar official of the Company or of any substantial part of the
         property of the Company, or the making by the Company of an assignment
         for the benefit of creditors, or the admission by the Company in
         writing of its inability to pay its debts generally as they become
         due, or the taking of corporate action by the Company in furtherance
         of any such action; or

                 (7)      the acceleration of the maturity of any indebtedness
         for borrowed money of the Company or any Subsidiary of the Company
         (other than the Securities or Non-Recourse Indebtedness) having an
         aggregate principal amount outstanding in excess of $25,000,000, if
         such acceleration is not rescinded or annulled, or such indebtedness
         shall not have been discharged, within 15 days after written notice
         thereof to the Company; or

                 (8)      any other Event of Default provided with respect to
         Securities of that series.

         Notwithstanding the foregoing provisions of this Section 501, if the
principal of, or premium, if any, or any interest on, any Security of any
series is payable in a currency or currencies (including a composite currency)
other than Dollars and such currency (or currencies) is (or are) not available
to the Company for making payment thereof due to the imposition of exchange
controls or other circumstances beyond the reasonable control of the Company,
the Company will be entitled to satisfy its obligations to Holders of the





                                      -26-
<PAGE>   33
Securities of such series by making such payment in Dollars in an amount equal
to the Dollar equivalent of the amount payable in such other currency or
currencies, as determined by the Trustee by reference to the noon buying rate
in The City of New York for cable transfers for such currency or currencies
("Exchange Rate"), as such Exchange Rate is reported or otherwise made
available by the Federal Reserve Bank of New York on the date of such payment,
or, if such rate is not then available, on the basis of the most recently
available Exchange Rate.  Notwithstanding the foregoing provisions of this
Section 501, any payment made under such circumstances in Dollars where the
required payment is in a currency or currencies other than Dollars will not
constitute an Event of Default under this Indenture.

SECTION 502.     Acceleration of Maturity; Rescission and Annulment.

         If an Event of Default with respect to Securities of any series at the
time Outstanding occurs and is continuing, then in every such case the Trustee
or the Holders of not less than 25% in principal amount of the Outstanding
Securities of that series may declare the principal amount (or, if any of the
Securities of that series are Original Issue Discount Securities, such portion
of the principal amount of such Securities as may be specified in the terms
thereof) of all of the Securities of that series to be due and payable
immediately, by a notice in writing to the Company (and to the Trustee if given
by Holders), and upon any such declaration such principal amount (or specified
amount) shall become immediately due and payable.

         At any time after such a declaration of acceleration with respect to
Securities of any series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter in
this Article provided, the Holders of a majority in principal amount of the
Outstanding Securities of that series, by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if

                 (1)      the Company has paid or deposited with the Trustee a
         sum sufficient to pay

                          (A)     all overdue interest on, and any additional
                 amounts payable as set forth in Section 1004 on, all
                 Securities of that series and any coupons appertaining
                 thereto,

                          (B)     the principal of (and premium, if any, on)
                 any Securities of that series which have become due otherwise
                 than by such declaration of acceleration and any interest
                 thereon at the rate or rates prescribed therefor in such
                 Securities,

                          (C)     to the extent that payment of such interest
                 is lawful, interest upon overdue interest, and any additional
                 amounts payable as set forth in Section 1004, at the rate or
                 rates prescribed therefor in such Securities, and

                          (D)     all sums paid or advanced by the Trustee
                 hereunder and the reasonable compensation, expenses,
                 disbursements and advances of the Trustee, its agents and
                 counsel;

         and

                 (2)      all Events of Default with respect to Securities of
         that series, other than the non-payment of the principal of Securities
         of that series which have become due solely by such declaration of
         acceleration, have been cured or waived as provided in Section 513.

No such rescission shall affect any subsequent default or impair any right
consequent thereon.





                                      -27-
<PAGE>   34
SECTION 503.     Collection of Indebtedness and Suits for Enforcement by 
                 Trustee.
                

         The Company covenants that if

                 (1)      default is made in the payment of any interest on any
         Security when such interest becomes due and payable and such default
         continues for a period of 30 days, or

                 (2)      default is made in the payment of the principal of
         (or premium, if any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities and coupons, the whole amount then due and payable
on such Securities and coupons for principal and any premium and interest and,
to the extent that payment of such interest shall be legally enforceable,
interest on any overdue principal and premium and on any overdue interest, at
the rate or rates prescribed therefor in such Securities (or, in the case of
Original Issue Discount Securities, the Securities' yield to maturity) and, in
addition thereto, such further amount as shall be sufficient to cover the costs
and expenses of collection, including the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel.

         If the Company fails to pay such amounts forthwith upon such demand,
the Trustee, in its own name and as trustee of an express trust, may institute
a judicial proceeding for the collection of the sums so due and unpaid, may
prosecute such proceeding to judgment or final decree and may enforce the same
against the Company or any other obligor upon such Securities and collect the
moneys adjudged or decreed to be payable in the manner provided by law out of
the property of the Company or any other obligor upon such Securities, wherever
situated.

         If an Event of Default with respect to Securities of any series occurs
and is continuing, the Trustee may in its discretion proceed to protect and
enforce its rights and the rights of the Holders of Securities of such series
and any related coupons by such appropriate judicial proceedings as the Trustee
shall deem most effective to protect and enforce any such rights, whether for
the specific enforcement of any covenant or agreement in this Indenture or in
aid of the exercise of any power granted herein, or to enforce any other proper
remedy.

SECTION 504.     Trustee May File Proofs of Claim.

         In case of any judicial proceeding relative to the Company(or any
other obligor upon the Securities), or the property or the creditors of the
Company, the Trustee shall be entitled and empowered, by intervention in such
proceeding or otherwise, to take any and all actions authorized under the Trust
Indenture Act in order to have claims of the Holders and the Trustee allowed in
any such proceeding.  In particular, the Trustee shall be authorized to collect
and receive any moneys or other property payable or deliverable on any such
claims and to distribute the same; and any custodian, receiver, assignee,
trustee, liquidator, sequestrator or other similar official in any such
judicial proceeding is hereby authorized by each Holder to make such payments
to the  Trustee and, in the event that the Trustee shall consent to the making
of such payments directly to the Holders, to pay to the Trustee any amount due
it for the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel, and any other amounts due the Trustee under
Section 607.

         No provision of this Indenture shall be deemed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or composition affecting
the Securities or the rights of any Holder thereof or to authorize the Trustee
to vote in respect of the claim of any Holder in any such proceeding; provided,
however, that the Trustee may, on





                                      -28-
<PAGE>   35
behalf of Holders, vote for the election of a trustee of bankruptcy or similar
official and be a member of a creditors' or other similar committee.

SECTION 505.     Trustee May Enforce Claims Without Possession of Securities or
                 Coupons.
                
         All rights of action and claims under this Indenture or the Securities
or coupons may be prosecuted and enforced by the Trustee without the possession
of any of the Securities or coupons or the production thereof in any proceeding
relating thereto, and any such proceeding instituted by the Trustee shall be
brought in its own name as trustee of an express trust, and any recovery of
judgment shall, after provision for the payment of reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, be
for the ratable benefit of the Holders of the Securities and coupons in respect
of which such judgment has been recovered.

SECTION 506.     Application of Money Collected.

         Any money collected by the Trustee pursuant to this Article shall be
applied in the following order, at the date or dates fixed by the Trustee and,
in case of the distribution of such money on account of principal or any
premium or interest, upon presentation of the Securities or coupons, or both as
the case may be, and the notation thereon of the payment if only partially paid
and upon surrender thereof if fully paid:

                 FIRST:  To the payment of all amounts due the Trustee under
         Section 607;

                 SECOND:  To the payment of the amounts then due and unpaid for
         principal of and any premium and interest on the Securities and
         coupons in respect of which or for the benefit of which such money has
         been collected, ratably, without preference or priority of any kind,
         according to the amounts due and payable on such Securities and
         coupons for principal and any premium and interest, respectively; and

                 THIRD:  The balance, if any, to the Person or Persons entitled
         thereto.

         In any case in which Securities are Outstanding that are denominated
in more than one currency and the Trustee is directed to make ratable payments
under this Section to Holders of such Securities, unless otherwise provided
with respect to any series of Securities, the Trustee shall calculate the
amount of such payments as follows: (i) as of the day the Trustee collects an
amount under this Article, the Trustee shall, as to each Holder of a Security
to whom an amount is due and payable under this Section that is denominated in
a foreign currency, determine that amount in Dollars that would be obtained for
the amount owing such Holder, using the rate of exchange at which in accordance
with normal banking procedures the Trustee could purchase in the City of New
York Dollars with such amount owing; (ii) calculate the sum of all Dollar
amounts determined under (i) and add thereto any amounts due and payable in
Dollars; and (iii) using the individual amounts determined in (i) or any
individual amounts due and payable in Dollars, as the case may be, as a
numerator, and the sum calculated in (ii) as a denominator, calculate as to
each Holder of a Security to whom an amount is owed under this Section the
fraction of the amount collected under this Article payable to such Holder.
Any expenses incurred by the Trustee in actually converting amounts owing
Holders of Securities denominated in a currency other than that in which any
amount is collected under this Article shall be likewise (in accordance with
this paragraph) borne ratably by all Holders of Securities to whom amounts are
payable under this Section.

         To the fullest extent allowed under applicable law, if for the purpose
of obtaining judgment against the Company in any court it is necessary to
convert the sum due in respect of the principal of, or premium, if any, or
interest on, the Securities of any series (the "Required Currency") into a
currency in which a judgment will be rendered (the "Judgment Currency"), the
rate of exchange used shall be the rate at which in accordance with normal
banking procedures the Trustee could purchase in The City of New York the





                                      -29-
<PAGE>   36
Required Currency with the Judgment Currency on the Business Day in The City of
New York next preceding that on which final judgment is given.  Neither the
Company nor the Trustee shall be liable for any shortfall nor shall it benefit
from any windfall in payments to Holders of Securities under this Section
caused by a change in exchange rates between the time the amount of a judgment
against the Company is calculated as above and the time the Trustee converts
the Judgment Currency into the Required Currency to make payments under this
Section to Holders of Securities, but payment of such judgment shall discharge
all amounts owed by the Company on the claim or claims underlying such
judgment.

SECTION 507.     Limitation on Suits.

         No Holder of any Security of any series or any related coupons shall
have any right to institute any proceeding, judicial or otherwise, with respect
to this Indenture, or for the appointment of a receiver or trustee, or for any
other remedy hereunder, unless:

                 (1)      such Holder has previously given written notice to
         the Trustee of a continuing Event of Default with respect to the
         Securities of that series;

                 (2)      the Holders of not less than 25% in principal amount
         of the Outstanding Securities of that series shall have made written
         request to the Trustee to institute proceedings in respect of such
         Event of Default in its own name as Trustee hereunder;

                 (3)      such Holder or Holders have offered to the Trustee
         reasonable indemnity against the costs, expenses and liabilities to be
         incurred in compliance with such request;

                 (4)      the Trustee for 60 days after its receipt of such
         notice, request and offer of indemnity has failed to institute any
         such proceeding; and

                 (5)      no direction inconsistent with such written request
         has been given to the Trustee during such 60-day period by the Holders
         of a majority in principal amount of the Outstanding Securities of
         that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all such
Holders.

SECTION 508.     Unconditional Right of Holders to Receive Principal, Premium
                 and Interest.

         Notwithstanding any other provision in this Indenture, the Holder of
any Security or coupon shall have the right, which is absolute and
unconditional, to receive payment of the principal of and any premium and
(subject to Sections 305 and 307) any interest on such Security or payment of
such coupon on the Stated Maturity or Maturities expressed in such Security or
coupon (or, in the case of redemption, on the Redemption Date) and to institute
suit for the enforcement of any such payment, and such rights shall not be
impaired without the consent of such Holder.

SECTION 509.     Restoration of Rights and Remedies.

         If the Trustee or any Holder of a Security or coupon has instituted
any proceeding to enforce any right or remedy under this Indenture and such
proceeding has been discontinued or abandoned for any reason, or has been
determined adversely to the Trustee or to such Holder, then and in every such
case, subject to any determination in such proceeding, the Company, the Trustee
and the Holders of Securities and coupons





                                      -30-
<PAGE>   37
shall be restored severally and respectively to their former positions
hereunder and thereafter all rights and remedies of the Trustee and the Holders
shall continue as though no such proceeding had been instituted.

SECTION 510.     Rights and Remedies Cumulative.

         Except as otherwise provided with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities or coupons in the
last paragraph of Section 306, no right or remedy herein conferred upon or
reserved to the Trustee or to the Holders of Securities or coupons is intended
to be exclusive of any other right or remedy, and every right and remedy shall,
to the extent permitted by law, be cumulative and in addition to every other
right and remedy given hereunder or now or hereafter existing at law or in
equity or otherwise.  The assertion or employment of any right or  remedy
hereunder, or otherwise, shall not prevent the concurrent assertion or
employment of any other appropriate right or remedy.

SECTION 511.     Delay or Omission Not Waiver.

         No delay or omission of the Trustee or of any Holder of any Security
or coupon to exercise any right or remedy accruing upon any Event of Default
shall impair any such right or remedy or constitute a waiver of any such Event
of Default or an acquiescence therein.  Every right and remedy given by this
Article or by law to the Trustee or to the Holders of Securities or coupons may
be exercised from time to time, and as often as may be deemed expedient, by the
Trustee or by the Holders of Securities or coupons, as the case may be.

SECTION 512.     Control by Holders of Securities.

         The Holders of a majority in principal amount of the Outstanding
Securities of any series shall have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee, or
exercising any trust or power conferred on the Trustee, with respect to the
Securities of such series, provided that

                 (1)      such direction shall not be in conflict with any rule
         of law or with this Indenture;

                 (2)      the Trustee may take any other action deemed proper
         by the Trustee which is not inconsistent with such direction; and

                 (3)      the Trustee shall not be obligated to take any action
         unduly prejudicial to Holders not joining in such direction or
         involving the Trustee in personal liability.

SECTION 513.     Waiver of Past Defaults.

         The Holders of a majority in principal amount of the Outstanding
Securities of any series may on behalf of the Holders of all the Securities of
such series waive any past default hereunder with respect to the Securities of
such series and its consequences, except a default

                 (1)      in the payment of the principal of or any premium or
         interest on any Security of such series, or

                 (2)      in respect of a covenant or provision hereof which
         under Article Nine cannot be modified or amended without the consent
         of the Holder of each Outstanding Security of such series affected.





                                      -31-
<PAGE>   38
         Upon any such waiver, such default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other default or impair any right consequent thereon.

SECTION 514.     Undertaking for Costs.

         In any suit for the enforcement of any right or remedy under this
Indenture, or in any suit against the Trustee for any action taken, suffered or
omitted by it as Trustee, a court may require any party litigant in such suit
to file an undertaking to pay the costs of such suit, and may assess costs
against any such party litigant, in the manner and to the extent provided in
the Trust Indenture Act; provided that neither this Section nor the Trust
Indenture Act shall be deemed to authorize any court to require such an
undertaking or to make such an assessment in any suit instituted by the
Company.

SECTION 515.     Waiver of Stay or Extension Laws.

         The Company covenants (to the extent that it may lawfully do so) that
it will not at any time insist upon, or plead, or in any manner whatsoever
claim to take the benefit or advantage of, any stay or extension law wherever
enacted, now or at any time hereafter in force, which may affect the covenants
or the performance of this Indenture; and the Company (to the extent that it
may lawfully do so) hereby expressly waives all benefit or advantage of any
such law and covenants that it will not hinder, delay or impede the execution
of any power herein granted to the Trustee, but will suffer and permit the
execution of every such power as though no such law had been enacted.


                                  ARTICLE  SIX

                                  THE TRUSTEE

SECTION 601.     Certain Duties and Responsibilities.

         The duties and responsibilities of the Trustee shall be as provided by
the Trust Indenture Act.  Notwithstanding the foregoing, no provision of this
Indenture shall require the Trustee to expend or risk its own funds or
otherwise incur any financial liability in the performance of any of its duties
hereunder, or in the exercise of any of its rights or powers, if it shall have
reasonable grounds for believing that repayment of such funds or adequate
indemnity against such risk or liability is not reasonably assured to it.
Whether or not therein expressly so provided, every provision of this Indenture
relating to the conduct or affecting the liability of or affording protection
to the Trustee shall be subject to the provisions of this Section.

SECTION 602.     Notice of Defaults.

         If a default occurs hereunder with respect to Securities of any
series, the Trustee shall give the Holders of Securities of such series notice
of such default as and to the extent provided by the Trust Indenture Act;
provided, however, that in the case of any default of the character specified
in Section 501(4) with respect to Securities of such series, no such notice to
Holders shall be given until at least 30 days after the occurrence thereof.
For the purpose of this Section, the term "default" means any event which is,
or after notice or lapse of time or both would become, an Event of Default with
respect to Securities of such series.

SECTION 603.     Certain Rights of Trustee.

         Subject to the provisions of Section 601:





                                      -32-
<PAGE>   39
                 (1)      the Trustee may rely and shall be protected in acting
         or refraining from acting upon any resolution, certificate, statement,
         instrument, opinion, report, notice, request, direction, consent,
         order, bond, debenture, note, other evidence of indebtedness or other
         paper or document believed by it to be genuine and to have been signed
         or presented by the proper party or parties;

                 (2)      any request or direction of the Company mentioned
         herein shall be sufficiently evidenced by a Company Request or Company
         Order or as otherwise expressly provided herein and any resolution of
         the Board of Directors of the Company shall be sufficiently evidenced
         by a Board Resolution;

                 (3)      whenever in the administration of this Indenture the
         Trustee shall deem it desirable that a matter be proved or established
         prior to taking, suffering or omitting any action hereunder, the
         Trustee (unless other evidence be herein specifically prescribed) may,
         in the absence of bad faith on its part, rely upon an Officers'
         Certificate;

                 (4)      the Trustee may consult with counsel and the written
         advice of such counsel or any Opinion of Counsel shall be full and
         complete authorization and protection in respect of any action taken,
         suffered or omitted by it hereunder in good faith and in reliance
         thereon;

                 (5)      the Trustee shall be under no obligation to exercise
         any of the rights or powers vested in it by this Indenture at the
         request or direction of any of the Holders pursuant to this Indenture,
         unless such Holders shall have offered to the Trustee reasonable
         security or indemnity against the costs, expenses and liabilities
         which might be incurred by it in compliance with such request or
         direction;

                 (6)      the Trustee shall not be bound to make any
         investigation into the facts or matters stated in any resolution,
         certificate, statement, instrument, opinion, report, notice, request,
         direction, consent, order, bond, debenture, note, other evidence of
         indebtedness or other paper or document, but the Trustee, in its
         discretion, may make such further inquiry or investigation into such
         facts or matters as it may see fit, and, if the Trustee shall
         determine to make such further inquiry or investigation, it shall be
         entitled to examine the books, records and premises of the Company,
         personally or by agent or attorney; and

                 (7)      the Trustee may execute any of the trusts or powers
         hereunder or perform any duties hereunder either directly or by or
         through agents or attorneys and the Trustee shall not be responsible
         for any misconduct or negligence on the part of any agent or attorney
         appointed with due care by it hereunder.

SECTION 604.     Not Responsible for Recitals or Issuance of Securities.

         The recitals contained herein and in the Securities (except the
Trustee's certificates of authentication) and in any coupons shall be taken as
the statements of the Company and the Trustee or any Authenticating Agent
assumes no responsibility for their correctness.  The Trustee makes no
representations as to the validity or sufficiency of this Indenture or of the
Securities or coupons.  The Trustee or any Authenticating Agent shall not be
accountable for the use or application by the Company of Securities or the
proceeds thereof.

SECTION 605.     May Hold Securities.

         The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Securities and coupons and,
subject to Sections 608 and 613, may otherwise deal with the Company with the
same rights





                                      -33-
<PAGE>   40
it would have if it were not Trustee, Authenticating Agent, Paying Agent,
Security Registrar or such other agent.

SECTION 606.     Money Held in Trust.

         Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law.  The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed with the Company.

SECTION 607.     Compensation and Reimbursement.

         The Company agrees

                 (1)      to pay to the Trustee from time to time reasonable
         compensation for all services rendered by it hereunder (which
         compensation shall not be limited by any provision of law in regard to
         the compensation of a trustee of an express trust);

                 (2)      except as otherwise expressly provided herein, to
         reimburse the Trustee and each predecessor Trustee upon its request
         for all reasonable expenses, disbursements and advances incurred or
         made by the Trustee in accordance with any provision of this Indenture
         (including the reasonable compensation and the expenses and
         disbursements of its agents and counsel), except any such expense,
         disbursement or advance as may be attributable to its negligence or
         bad faith; and

                 (3)      to indemnify the Trustee and each predecessor Trustee
         for, and to hold it harmless against, any loss, liability or expense
         incurred without negligence or bad faith on its part, arising out of
         or in connection with the acceptance or administration of the trust or
         trusts hereunder, including the costs and expenses of defending itself
         against any claim or liability in connection with the exercise or
         performance of any of its powers or duties hereunder.

         As security for the performance of the obligations of the Company
under this Section the Trustee shall have a lien prior to the Securities upon
all property and funds held or collected by the Trustee as such, except funds
held in trust for the benefit of the Holders of particular Securities.

         Any expenses and compensation for any services rendered by the Trustee
after the occurrence of an Event of Default specified in clause (5) or (6) of
Section 501 shall constitute expenses and compensation for services of
administration under all applicable federal or state bankruptcy, insolvency,
reorganization or other similar laws.

         The provisions of this Section shall survive the termination of this
Indenture.

SECTION 608.     Disqualification; Conflicting Interests.

         If the Trustee has or shall acquire a conflicting interest within the
meaning of the Trust Indenture Act, the Trustee shall either eliminate such
interest or resign, to the extent and in the manner provided by, and subject to
the provisions of, the Trust Indenture Act and this Indenture.

SECTION 609.     Corporate Trustee Required; Eligibility.

         There shall at all times be a Trustee hereunder which shall be a
corporation organized and doing business under the laws of the United States,
any State thereof or the District of Columbia, authorized under such laws to
exercise corporate trust powers, having a combined capital and surplus of at
least $5,000,000, and  subject to supervision or examination by Federal or
State authority; provided that, in the case of any





                                      -34-
<PAGE>   41
Trustee that is a successor to the Trustee at the date as of which this
Indenture was executed (including, without limitation, any successor by
assignment, merger, operation of law or otherwise), the Trustee shall have a
combined capital and surplus of at least $50,000,000.  If such corporation
publishes reports of condition at least annually, pursuant to law or to the
requirements of said supervising or examining authority, then for the purposes
of this Section, the combined capital and surplus of such corporation shall be
deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published.  If at any time the Trustee shall cease to be
eligible in accordance with the provisions of this Section, it shall resign
immediately in the manner and with the effect hereinafter specified in this
Article.  No obligor upon any Security issued under this Indenture or a person
directly or indirectly controlling, controlled by or under common control with
such obligor shall serve as Trustee under this Indenture.

SECTION 610.     Resignation and Removal; Appointment of Successor.

         (a)     No resignation or removal of the Trustee and no appointment of
a successor Trustee pursuant to this Article shall become effective until the
acceptance of appointment by the successor Trustee in accordance with the
applicable requirements of Section 611.

         (b)     The Trustee may resign at any time with respect to the
Securities of one or more series by giving written notice thereof to the
Company.  If the instrument of acceptance by a successor Trustee required by
Section 611 shall not have been delivered to the Trustee within 30 days after
the giving of such notice of resignation, the resigning Trustee may petition
any court of competent jurisdiction for the appointment of a successor Trustee
with respect to the Securities of such series.

         (c)     The Trustee may be removed at any time with respect to the
Securities of any series by Act of the Holders of a majority in principal
amount of the Outstanding Securities of such series delivered to the Trustee
and to the Company.

         (d)     If at any time:

                 (1)      the Trustee shall fail to comply with Section 608
         after written request therefor by the Company or by any Holder of a
         Security who has been a bona fide Holder of a Security for at least
         six months, or

                 (2)      the Trustee shall cease to be eligible under Section
         609 and shall fail to resign after written request therefor by the
         Company or by any such Holder, or

                 (3)      the Trustee shall become incapable of acting or shall
         be adjudged as bankrupt or insolvent or a receiver of the Trustee or
         of its property shall be appointed or a public officer shall take
         charge or control of the Trustee or of its property or affairs for the
         purpose of rehabilitation, conservation or liquidation,

then, in any case, (i) the Company by a Board Resolution may remove the Trustee
with respect to all Securities, or (ii) subject to Section 514, any Holder of a
Security who has been a bona fide Holder of a Security for at least six months
may, on behalf of himself and all others similarly situated, petition any court
of competent jurisdiction for the removal of the Trustee with respect to all
Securities and the appointment of a successor Trustee or Trustees.

         (e)     If the Trustee shall resign, be removed or become incapable of
acting, or if a vacancy shall occur in the office of the Trustee for any cause,
with respect to the Securities of one or more series, the Company, by a Board
Resolution, shall promptly appoint a successor Trustee or Trustees with respect
to the Securities of that or those series (it being understood that any such
successor Trustee may be appointed with respect to the Securities of one or
more or all series and that at any time there shall be only one Trustee with





                                      -35-
<PAGE>   42
respect to the Securities of any particular series) and shall comply with the
applicable requirements of Section 611.  If, within one year after such
resignation, removal or incapability, or the occurrence of such vacancy, a
successor Trustee with respect to the Securities of any series shall be
appointed by Act of the Holders of a majority in principal amount of the
Outstanding Securities of such series delivered to the Company and the retiring
Trustee, the successor Trustee so appointed shall, forthwith upon its
acceptance of such appointment in accordance with the applicable requirements
of Section 611, become the successor Trustee with respect to the Securities of
such series and to that extent supersede the successor Trustee appointed by the
Company.  If no successor Trustee with respect to the Securities of any series
shall have been so appointed by the Company or the Holders of Securities of
such series and accepted appointment in the manner required by Section 611, any
Holder of a Security who has been a bona fide Holder of a Security of such
series for at least six months may, on behalf of himself and all others
similarly situated, petition any court of competent jurisdiction for the
appointment of a successor Trustee with respect to the Securities of such
series.  Such court may thereupon, after such notice, if any, as it may deem
proper, appoint a successor Trustee.

         (f)     The Company shall give notice of each resignation and each
removal of the Trustee with respect to the Securities of any series and each
appointment of a successor Trustee with respect to the Securities of any series
in the manner provided in Section 106.  Each notice shall include the name of
the successor Trustee with respect to the Securities of such series and the
address of its Corporate Trust Office.

SECTION 611.     Acceptance of Appointment by Successor.

         (a)     In case of the appointment hereunder of a successor Trustee
with respect to all Securities, every such successor Trustee so appointed shall
execute, acknowledge and deliver to the Company and to the retiring Trustee an
instrument accepting such appointment, and thereupon the resignation or removal
of the retiring Trustee shall become effective and such successor Trustee,
without further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee, with like effect as
if originally named Trustee hereunder; but, on the request of the Company or
the successor Trustee, such retiring Trustee shall, upon payment of its
charges, execute and deliver an instrument transferring to such successor
Trustee all the rights, powers and trusts of the retiring Trustee and shall
duly assign, transfer and deliver to such successor Trustee all property and
money held by such retiring Trustee hereunder.  Any Trustee ceasing to act
shall, nevertheless, retain a prior lien upon all property or funds held or
collected by such Trustee to secure any amounts then due it pursuant to the
provisions of, and subject to the limitations set forth in, Section 607.

         (b)     In case of the appointment hereunder of a successor Trustee
with respect to the Securities of one or more (but not all) series, the
Company, the retiring Trustee and each successor Trustee with respect to the
Securities of one or more series shall execute and deliver an indenture
supplemental hereto wherein each successor Trustee shall accept such
appointment and which (1) shall contain such provisions as shall be necessary
or desirable to transfer and confirm to, and to vest in, each successor Trustee
all the rights, powers, trusts and duties of the retiring Trustee with respect
to the Securities of that or those series to which the appointment of such
successor Trustee relates, (2) if the retiring Trustee is not retiring with
respect to all Securities, shall contain such provisions as shall be deemed
necessary or desirable to confirm that all the rights, powers, trusts and
duties of the retiring Trustee with respect to the Securities of that or those
series as to which the retiring Trustee is not retiring shall continue to be
vested in the retiring Trustee, and (3) shall add to or change any of the
provisions of this Indenture as shall be necessary to provide for or facilitate
the administration of the trusts hereunder by more than one Trustee, it being
understood that nothing herein or in such supplemental indenture shall
constitute such Trustees as co-trustees of the same trust and that each such
Trustee shall be trustee of a trust or trusts hereunder separate and apart from
any trust or trusts hereunder administered by any other such Trustee; and upon
the execution and delivery of such supplemental indenture the resignation or
removal of the retiring Trustee shall become effective to the extent provided
therein and each such successor Trustee, without any further act, deed or
conveyance, shall become vested with all rights, powers, trusts and duties of
the retiring Trustee with respect to the Securities of that or those





                                      -36-
<PAGE>   43
series to which the appointment of such successor Trustee relates; but, on
request of the Company or any successor Trustee, such retiring Trustee shall
duly assign, transfer and deliver to such successor Trustee all property and
money held by such retiring Trustee hereunder with respect to the Securities of
that or those series to which the appointment of such successor Trustee
relates.

         (c)     Upon request of any successor Trustee, the Company shall
execute any and all instruments for more fully and certainly vesting in and
confirming to such successor Trustee all such rights, powers and trusts
referred to in paragraph (a) or (b) of this Section, as the case may be.

         (d)     No successor Trustee shall accept its appointment unless at
the time of such acceptance such  successor Trustee shall be qualified and
eligible under this Article.

SECTION 612.     Merger, Conversion, Consolidation or Succession to Business.

         Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any
merger, conversion or consolidation to which the Trustee shall be a party, or
any corporation succeeding to all or substantially all the corporate trust
business of the Trustee, shall be the successor of the Trustee hereunder
(provided such corporation shall be otherwise qualified and eligible under this
Article) without the execution or filing of any paper or any further act on the
part of any of the parties hereto.  In case any Securities shall have been
authenticated, but not delivered, by the Trustee then in office, any successor
by merger, conversion or consolidation to such authenticating Trustee may adopt
such authentication and deliver the Securities so authenticated with the same
effect as if such successor Trustee had itself authenticated such Securities.

SECTION 613.     Preferential Collection of Claims Against Company.

         If and when the Trustee shall be or become a creditor of the
Company(or any other obligor upon the Securities), the Trustee shall be subject
to the provisions of the Trust Indenture Act regarding the collection of claims
against the Company (or any such other obligor).

SECTION 614.     Appointment of Authenticating Agent.

         The Trustee may, by an instrument in writing, appoint an
Authenticating Agent or Agents with respect to one or more series of Securities
which may be authorized to act on behalf of the Trustee to authenticate
Securities of such series issued upon original issue or upon exchange,
registration of transfer or partial redemption thereof or pursuant to Section
306, and Securities so authenticated shall be entitled to the benefits of this
Indenture and shall be valid and obligatory for all purposes as if
authenticated by the Trustee hereunder.  Wherever reference is made in this
Indenture to the authentication and delivery of Securities by the Trustee or
the Trustee's certificate of authentication, such reference shall be deemed to
include authentication and delivery on behalf of the Trustee by an
Authenticating Agent or a certificate of authentication executed on behalf of
the Trustee by an Authenticating Agent, as the case may be.  Each
Authenticating Agent shall be acceptable to the Company and shall at all times
be a corporation organized and doing business under the laws of the United
States, any State thereof or the District of Columbia (or, if Bearer
Securities, authorized to act as Authenticating Agent under the laws of the
country in which the Bearer Securities are eligible), authorized under such
laws to act as Authenticating Agent, having a combined capital and surplus of
not less than $50,000,000 or equivalent amount expressed in a foreign currency,
as the case may be, and subject to supervision or examination by Federal or
State authority (or, if Bearer Securities, an authority of the country in which
the Bearer Securities are eligible).  If such Authenticating Agent publishes
reports of condition at least annually, pursuant to law or to the requirements
of said supervising or examining authority, then for the purposes of this
Section, the combined capital and surplus of such Authenticating Agent shall be
deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published.  If at any time an Authenticating Agent shall
cease to be eligible in accordance with the





                                      -37-
<PAGE>   44
provisions of this Section, such Authenticating Agent shall resign immediately
in the manner and with the effect specified in this Section.

         Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of such Authenticating Agent, shall continue to be an
Authenticating Agent (provided such corporation shall be otherwise eligible
under this Section) without  the execution or filing of any paper or any
further act on the part of the Trustee or such Authenticating Agent.

         An Authenticating Agent may, and if it shall cease to be eligible
shall, resign at any time by giving written notice thereof to the Trustee and
to the Company.  The Trustee may at any time terminate the agency of an
Authenticating Agent by giving written notice thereof to such Authenticating
Agent and to the Company.  Upon receiving such notice of resignation or upon
such termination, or in case at any time such Authenticating Agent shall cease
to be eligible in accordance with the provisions of this Section, the Trustee
may appoint a successor Authenticating Agent which shall be acceptable to the
Company and shall mail written notice of such appointment by first-class mail,
postage prepaid, to all Holders of Registered Securities, if any, of the series
with respect to which such Authenticating Agent will serve, as their names and
addresses appear in the Security Register.  Any successor Authenticating Agent
upon acceptance of its appointment hereunder shall become vested with all the
rights, powers, and duties of its predecessor hereunder, with like effect as if
originally named as an Authenticating Agent.  No successor Authenticating Agent
shall be appointed unless eligible under the provisions of this Section.

         The Trustee agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section, and the
Trustee shall be entitled to be reimbursed for such payment, subject to the
provisions of Section 607.

         If an appointment with respect to one or more series is made pursuant
to this Section, the Securities of such series may have endorsed thereon, in
addition to the Trustee's certificate of authentication, an alternative
certificate of authentication in the following form:

                 "This is one of the Securities of the series designated
         therein referred to in the within-mentioned Indenture.

                                           BANK OF MONTREAL TRUST COMPANY,
                                           As Trustee


                                           By: 
                                               ---------------------------------
                                                   As Authenticating Agent


                                           By: 
                                               ---------------------------------
                                                   Authorized Signature"


         If all the Securities of a series may not be originally issued at one
time, and if the Company has an Affiliate eligible to be appointed as an
Authenticating Agent hereunder or the Trustee does not have an office capable
of authenticating Securities upon original issuance located in a Place of
Payment where the Company wishes to have Securities of such series
authenticated upon original issuance, the Trustee, if so requested by the
Company in writing (which writing need not comply with Section 102 and need not
be accompanied by an Opinion of Counsel), shall appoint in accordance with this
Section an Authenticating Agent (which, if so





                                      -38-
<PAGE>   45
requested by the Company, shall be such Affiliate of the Company) having an
office in a Place of Payment designated by the Company with respect to such
series of Securities.


                                 ARTICLE  SEVEN

               HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.     Company to Furnish Trustee Names and Addresses of Holders.

         With respect to each series of Securities, the Company will furnish or
cause to be furnished to the Trustee:

         (a)     semi-annually, not later than 15 days after a Regular Record
Date, a list, in such form as the Trustee may reasonably require, containing
all the information in the possession or control of the Company, or any of its
Paying Agents other than the Trustee, as to the names and addresses of the
Holders of Securities as of the immediately preceding Regular Record Date, and

         (b)     at such other times as the Trustee may request in writing,
within 30 days after the receipt by the Company of any such request, a list of
similar form and content as of a date not more than 15 days prior to the time
such list is furnished;

excluding from any such list names and addresses received by the Trustee in its
capacity as Security Registrar.

SECTION 702.     Preservation of Information; Communications to Holders.

         (a)     The Trustee shall preserve, in as current a form as is
reasonably practicable, the names and addresses of Holders contained in the
most recent list furnished to the Trustee as provided in Section 701, and the
names and addresses of Holders received by the Trustee in its capacity as
Security Registrar.  The Trustee may destroy any list furnished to it as
provided in Section 701 upon receipt of a new list so furnished.

         (b)     The rights of the Holders to communicate with other Holders
with respect to their rights under this Indenture or under the Securities, and
the corresponding rights and privileges of the Trustee, shall be as provided by
the Trust Indenture Act.

         (c)     Every Holder of Securities or coupons, by receiving and
holding the same, agrees with the Company and the Trustee that neither the
Company nor the Trustee nor any agent of either of them shall be held
accountable by reason of any disclosure of information as to names and
addresses of Holders made pursuant to the Trust Indenture Act and that the
Trustee shall not be held accountable by reason of mailing any material
pursuant to a request made under Section 702(b).

SECTION 703.     Reports by Trustee.

         (a)     On or before July 15 in each year following the date hereof,
the Trustee shall transmit to Holders such reports concerning the Trustee and
its actions under this Indenture as may be required pursuant to the Trust
Indenture Act at the times and in the manner provided pursuant thereto.

         (b)     A copy of each such report shall, at the time of such
transmission to Holders, be filed by the Trustee with each stock exchange upon
which any Securities are listed, with the Commission and with





                                      -39-
<PAGE>   46
the Company.  The Company will notify the Trustee when any Securities are
listed (or delisted) on any stock exchange.

SECTION 704.     Reports by Company.

         In addition to the certificates delivered to the Trustee pursuant to
Section 1007, the Company shall file with the Trustee and the Commission, and
transmit to Holders, such information, documents and other reports, and such
summaries thereof, as may be required pursuant to the Trust Indenture Act at
the times and in the manner provided pursuant thereto; provided that any such
information, documents or reports required to be filed with the Commission
pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as
amended, shall be filed with the Trustee within 15 days after the same is so
required to be filed with the Commission.


                                 ARTICLE  EIGHT

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.     Company May Consolidate, Etc., Only on Certain Terms.

         The Company shall not consolidate with or merge into any other Person
or convey, transfer or lease its properties and assets substantially as an
entirety to any other Person, unless:

                 (1)      the Person formed by such consolidation or into which
         the Company is merged or the Person which acquires by conveyance or
         transfer, or which leases, the properties and assets of the Company
         substantially as an entirety shall be a corporation, partnership or
         trust, shall be organized and validly existing under the laws of the
         United States, any state thereof or the District of Columbia and shall
         expressly assume, by an indenture supplemental hereto, executed and
         delivered to the Trustee, in form satisfactory to the Trustee, the due
         and punctual payment of  the principal of and any premium and interest
         (including all additional amounts, if any, payable pursuant to Section
         1004) on all the Securities and the performance or observance of every
         other covenant of this Indenture on the part of the Company to be
         performed or observed;

                 (2)      immediately after giving effect to such transaction,
         no Event of Default, and no event which, after notice or lapse of time
         or both, would become an Event of Default, shall have occurred and be
         continuing; and

                 (3)      the Company has delivered to the Trustee an Officers'
         Certificate and an Opinion of Counsel, each stating that such
         consolidation, merger, conveyance, transfer or lease and such
         supplemental indenture comply with this Article Eight and that all
         conditions precedent herein provided for relating to such transaction
         have been complied with.

SECTION 802.     Successor Substituted.

         Upon any consolidation of the Company with, or merger of the Company
into, any other Person or any conveyance, transfer or lease of the properties
and assets of the Company substantially as an entirety to any other Person in
accordance with Section 801, the successor Person formed by such consolidation
or into which the Company is merged or to which such conveyance, transfer or
lease is made shall succeed to, and be substituted for, and may exercise every
right and power of, the Company under this Indenture with the same effect as if
such successor Person had been named as the Company herein, and thereafter,
except in the case of a lease, the predecessor Person shall be relieved of all
obligations and covenants under this Indenture and the Securities and coupons
and may liquidate and dissolve.





                                      -40-
<PAGE>   47
                                 ARTICLE  NINE

                            SUPPLEMENTAL INDENTURES

SECTION 901.     Supplemental Indentures without Consent of Holders.

         Without the consent of any Holders of Securities or coupons, the
Company, when authorized by a Board Resolution, and the Trustee, at any time
and from time to time, may enter into one or more indentures supplemental
hereto, in form satisfactory to the Trustee, for any of the following purposes:

                 (1)      to evidence the succession of another Person to the
         Company and the assumption by any such successor of the covenants of
         the Company herein and in the Securities pursuant to Article Eight; or

                 (2)      to add to the covenants of the Company for the
         benefit of the Holders of all or any series of Securities and any
         coupons appertaining thereto (and if such covenants are to be for the
         benefit of less than all series of Securities, stating that such
         covenants are expressly being included solely for the benefit of such
         series), to convey, transfer, assign, mortgage or pledge any property
         to or with the Trustee or otherwise secure any series of the
         Securities or to surrender any right or power herein conferred upon
         the Company; or

                 (3)      to add any additional Events of Default with respect
         to all or any series of the Securities (and, if such Event of Default
         is applicable to less than all series of Securities, specifying the
         series to which such Event of Default is applicable); or

                 (4)      to add to or change any of the provisions of this
         Indenture to provide that Bearer Securities may be registrable as to
         principal, to change or eliminate any restrictions on the payment of
         principal of or any premium or interest on Bearer Securities, to
         permit Bearer Securities to be issued in exchange for Registered
         Securities, to permit Bearer Securities to be issued in exchange for
         Bearer Securities of other authorized denominations or to permit or
         facilitate the issuance of Securities in uncertificated form, provided
         that any such action shall not adversely affect the interests of the
         Holders of Securities of any series or any related coupons in any
         material respect; or

                 (5)      to add to, change or eliminate any of the provisions
         of this Indenture in respect of one or more series of Securities,
         provided that if any such addition, change or elimination shall
         adversely affect the interest of Holders of Securities of any series
         or any coupons appertaining thereto in any material respect, such
         change or elimination shall become effective only when there is no
         Security of such series Outstanding; or


                 (6)      to secure the Securities pursuant to the requirements
         of Section 1006 or otherwise; or

                 (7)      to establish the form or terms of Securities of any
         series and any related coupons as permitted by Sections 201 and 301;
         or

                 (8)      to evidence and provide for the acceptance of
         appointment hereunder by a successor Trustee with respect to the
         Securities of one or more series and to add to or change any of the
         provisions of this Indenture as shall be necessary to provide for or
         facilitate the administration of the trusts hereunder by more than one
         Trustee, pursuant to the requirements of Section 611(b); or

                 (9)      to cure any ambiguity, to correct or supplement any
         provision herein or in any supplemental indenture which may be
         defective or inconsistent with any other provision herein or





                                      -41-
<PAGE>   48
         in any supplemental indenture, or to make any other provisions with
         respect to matters or questions arising under this Indenture;
         provided, that such action shall not adversely affect the interests of
         the Holders of Securities of any series or any related coupons in any
         material respect.

SECTION 902.     Supplemental Indentures with Consent of Holders.

         With the consent of the Holders of a majority in principal amount of
the Outstanding Securities of each series affected by such supplemental
indenture, by Act of said Holders delivered to the Company and the Trustee, the
Company, when authorized by Board Resolution, and the Trustee may enter into an
indenture or indentures supplemental hereto for the purpose of adding, changing
in any manner or eliminating any of the provisions of this Indenture or of
modifying in any manner the rights of the Holders of Securities of such series
and any related coupons under this Indenture; provided, however, that no such
supplemental indenture shall, without the consent of the Holder of each
Outstanding Security affected thereby,

                 (1)      change the Stated Maturity of the principal of, or
         any installment of principal of or interest on, any Security, or
         reduce the principal amount thereof or the rate of interest thereon or
         any premium payable upon the redemption thereof, or change the
         Redemption Date thereof, or change any obligation of the Company to
         pay additional amounts pursuant to Section 1004 (except as
         contemplated by Section 801(1) and permitted by Section 901(1)), or
         reduce the amount of the principal of an Original Issue Discount
         Security that would be due and payable upon a declaration of
         acceleration of the Maturity thereof pursuant to Section 502, or
         change the coin or currency in which any Security or any premium or
         interest thereon is payable, or change any right of redemption,
         purchase or repayment by the Company at the option of the Holder, or
         impair the right to institute suit for the enforcement of any such
         payment on or after the Stated Maturity thereof (or, in the case of
         redemption, on or after the Redemption Date), or

                 (2)      reduce the percentage in principal amount of the
         Outstanding Securities of any series, the consent of whose Holders is
         required for any such supplemental indenture, or the consent of whose
         Holders is required for any waiver (of compliance with certain
         provisions of this Indenture or certain defaults hereunder and their
         consequences) provided for in this Indenture, or reduce the
         requirements of Section 1404 for quorum or voting, or

                 (3)      change any obligation of the Company to maintain an
         office or agency in the places and for the purposes specified in
         Section 1002, or

                 (4)      modify any of the provisions of this Section, Section
         513 or Section 1008 except to increase any such percentage or to
         provide that certain other provisions of this Indenture cannot be
         modified or waived without the consent of the Holder of each
         Outstanding Security affected thereby; provided, however, that this
         clause shall not be deemed to require the consent of any Holder of a
         Security or coupon with respect to changes in the references to "the
         Trustee" and concomitant changes in this Section and Section 1008 or
         the deletion of this provision, in accordance with the requirements of
         Sections 611(b) and 901(8).

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect to such
covenant or other provision, shall be deemed not to affect the rights under
this Indenture of the Holders of Securities of any other series.

         It shall not be necessary for any Act of Holders of Securities under
this Section to approve the particular form of any proposed supplemental
indenture, but it shall be sufficient if such Act shall approve the substance
thereof.





                                      -42-
<PAGE>   49
SECTION 903.     Execution of Supplemental Indentures.

         In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby
of the trusts created by this Indenture, the Trustee shall be entitled to
receive, and (subject to Section 601) shall be fully protected in relying upon,
an Opinion of Counsel stating that the execution of such supplemental indenture
is authorized or permitted by this Indenture.  The Trustee may, but shall not
be obligated to, enter into any such supplemental indenture which affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.

SECTION 904.     Effect of Supplemental Indentures.

         Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every
Holder of Securities theretofore or thereafter authenticated and delivered
hereunder and of any coupons appertaining thereto shall be bound thereby.

SECTION 905.     Conformity with Trust Indenture Act.

         Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act as then in effect.

SECTION 906.     Reference in Securities to Supplemental Indentures.

         Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture.  If the Company
shall so determine, new Securities of any series so modified as to conform, in
the opinion of the Trustee and the Company, to any such supplemental indenture
may be prepared and executed by the Company and authenticated and delivered by
the Trustee in exchange for Outstanding Securities of such series and of like
tenor.


                                  ARTICLE  TEN

                                   COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest.

         The Company covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of and any
premium and interest on the Securities of that series in accordance with the
terms of the Securities, any coupons appertaining thereto and this Indenture.
Unless otherwise specified as contemplated by Section 301 with respect to any
series of Securities, any interest due on Bearer Securities on or before
Maturity shall be payable only upon presentation and surrender of the several
coupons for such interest installments as are evidenced thereby as they
severally mature.

SECTION 1002.   Corporate Existence and Maintenance of Office or Agency.

         Except as expressly permitted by this Indenture, the Company will do
or cause to be done all things necessary to preserve and keep in full force and
effect the corporate existence of the Company.

         If Securities of a series are issuable only as Registered Securities,
the Company will maintain in each Place of Payment for such series an office or
agency where Securities of that series may be presented or surrendered for
payment, where Securities of that series may be surrendered for registration of
transfer or





                                      -43-
<PAGE>   50
exchange and where notices and demands to or upon the Company in respect of the
Securities of that series and this Indenture may be served.  If Securities of a
series are issuable as Bearer Securities, the Company will maintain (A) in the
Borough of Manhattan, The City of New York, an office or agency where any
Registered Securities of that series may be presented or surrendered for
payment, where any Registered Securities of that series may be surrendered for
registration of transfer, where Securities of that series may be surrendered
for exchange, where notices and demands to or upon the Company in respect of
the Securities of that series and this Indenture may be served and where Bearer
Securities of that series and related coupons may be presented or surrendered
for payment in the circumstances described in the following paragraph (and not
otherwise), (B) subject to any laws or regulations applicable thereto, in a
Place of Payment for that series which is located outside the United States, an
office or agency where Securities of that series and related coupons may be
presented or surrendered for payment (including payment of any additional
amounts payable on Securities of that series pursuant to Section 1004);
provided, however, that if the Securities of that series are listed on The
International Stock Exchange of the United Kingdom and the Republic of Ireland
Limited, the Luxembourg Stock Exchange or any other stock exchange located
outside the United States and such stock exchange shall so require, the Company
will maintain a Paying Agent for the Securities of that series in London,
Luxembourg or any other required city located outside the United States, as the
case may be, so long as the Securities of that series are listed on such
exchange, and (C) subject to any laws or regulations applicable thereto, in a
Place of Payment for that series which is located outside the United States, an
office or agency where any Registered Securities of that series may be
surrendered for registration of transfer, where Securities of that series may
be surrendered for exchange and where notices and demands to or upon the
Company in respect of the Securities of that series and this Indenture may be
served.  The Company will give prompt written notice to the Trustee and prompt
notices to the Holders as provided in Section 106 of the location, and any
change in the location, of any such office or agency.  If at any time the
Company shall fail to maintain any such required office or agency in respect of
any series of Securities or shall fail to furnish the Trustee with the address
thereof, such presentations and surrenders of Securities of that series may be
made and notices and demands may be made or served at the Corporate Trust
Office of the Trustee, except that Bearer Securities of that series and the
related coupons may be presented and surrendered for payment (including payment
of any additional amounts payable on Bearer Securities of that series pursuant
to Section 1004) at any Paying Agent for such series located outside the United
States, and the Company hereby appoints the same as its agents to receive such
respective presentations, surrenders, notices and demands.

         No payment of principal of or premium or interest on Bearer Securities
shall be made at any office or agency of the Company in the United States or by
check mailed to any address in the United States or by transfer to an account
maintained with a bank located in the United States; provided, however, that,
if the Securities of a series are denominated and payable in Dollars, payment
of principal of and any premium and interest on any Bearer Security (including
any additional amounts payable on Securities of such series pursuant to Section
1004) shall be made at the office of the Company's Paying Agent in the Borough
of Manhattan, The City of New York, if (but only if) payment in Dollars of the
full amount of such principal, premium, interest or additional amounts, as the
case may be, at all offices or agencies outside the United States maintained
for the purpose by the Company in accordance with this Indenture is illegal or
effectively precluded by exchange controls or other similar restrictions.

         The Company may also from time to time designate one or more other
offices or agencies where Securities of one or more series may be presented or
surrendered for any or all such purposes and may from time to time rescind such
designations; provided, however, that no such designation  or rescission shall
in any manner relieve the Company of its obligation to maintain an office or
agency in accordance with the requirements set forth above for Securities of
any series for such purposes.  The Company will give prompt written notice to
the Trustee and the Holders of any such designation or rescission and of any
other change in the location of any such other office or agency.





                                      -44-
<PAGE>   51
SECTION 1003.  Money for Securities Payments to Be Held in Trust.

         If the Company shall at any time act as its own Paying Agent with
respect to any series of Securities and any coupons appertaining thereto, it
will, on or before each due date of the principal of and any premium or
interest on any of the Securities of that series, segregate and hold in trust
for the benefit of the Persons entitled thereto a sum sufficient to pay the
principal and any premium or interest so becoming due until such sums shall be
paid to such Persons or otherwise disposed of as herein provided and will
promptly notify the Trustee of its action or failure to so act.

         Whenever the Company shall have one or more Paying Agents for any
series of Securities, it will, on or prior to each due date of the principal of
and any premium or interest on any Securities of that series, deposit with a
Paying Agent a sum sufficient to pay the principal and any premium or interest
so becoming due, such sum to be held in trust for the benefit of the Persons
entitled to such principal, premium or interest, and (unless such Paying Agent
is the Trustee) the Company will promptly notify the Trustee of its action or
failure to so act.

         The Company will cause each Paying Agent for any series of Securities
(other than the Company or the Trustee) to execute and deliver to the Trustee
an instrument in which such Paying Agent shall agree with the Trustee, subject
to the provisions of this Section, that such Paying Agent will (i) comply with
the provisions of the Trust Indenture Act applicable to it as a Paying Agent
and (ii) during the continuation of any default by the Company (or any other
obligor upon the Securities of that series) in the making of any payment in
respect of the Securities of that series, and upon the written request of the
Trustee, forthwith pay to the Trustee all sums held in trust by such Paying
Agent for payment in respect of the Securities of that series.

         The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held
in trust by the Company or such Paying Agent, such sums to be held by the
Trustee upon the same trusts as those upon which such sums were held by the
Company or such Paying Agent; and, upon such payment by any Paying Agent to the
Trustee, such Paying Agent shall be released from all further liability with
respect to such money.

         Any money deposited with the Trustee or any Paying Agent, or then held
by the Company, in trust for the payment of the principal of and any premium or
interest on any Security of any series and remaining unclaimed for two years
after such principal and any premium or interest has become due and payable
shall be paid to the Company on Company Request (unless otherwise required by
mandatory provisions of applicable escheat or abandoned or unclaimed property
law), or (if then held by the Company) shall be discharged from such trust; and
the Holder of such Security or any coupon appertaining thereto shall (unless
otherwise required by mandatory provisions of applicable escheat or abandoned
or unclaimed property law) thereafter, as an unsecured general creditor, look
only to the Company for payment thereof, and all liability of the Trustee or
such Paying Agent with respect to such trust money, and all liability of the
Company as trustee thereof, shall thereupon cease; provided, however, that the
Trustee or such Paying Agent, before being required to make any such repayment,
may at the expense of the Company cause to be published once, in an Authorized
Newspaper in each Place of Payment, notice that such money remains unclaimed
and that, after a date specified therein, which shall not be less than 30 days
from the date of such publication, any unclaimed balance of such money then
remaining will be repaid to the Company.

SECTION 1004.  Additional Amounts.

         If the Securities of a series provide for the payment of additional
amounts, the Company will pay to the Holder of any Security of such series or
any coupon appertaining thereto additional amounts as provided therein.
Whenever in this Indenture there is mentioned, in any context, the payment of
the principal of or any premium or interest on, or in respect of, any Security
of any series or payment of any related coupon





                                      -45-
<PAGE>   52
or the net proceeds received on the sale or exchange of any Security of any
series, such mention shall be deemed to include mention of the payment of
additional amounts provided for in this Section to the extent that, in such
context, additional amounts are, were or would be payable in respect thereof
pursuant to the provisions of this Section and express mention of the payment
of additional amounts (if applicable) in any provisions hereof shall not be
construed as excluding additional amounts in those provisions hereof where such
express mention is not made.

         If the Securities of a series provide for the payment of additional
amounts, at least 10 days prior to the first Interest Payment Date with respect
to that series of Securities (or if the Securities of that series will not bear
interest prior to Maturity, the first day on which a payment of principal and
any premium is made), and at least 10 days prior to each date of payment of
principal and any premium or interest if there has been any change with respect
to the matters set forth in the below-mentioned Officers' Certificate, the
Company will furnish the Trustee and the Company's principal Paying Agent or
Paying Agents, if other than the Trustee, with an Officers' Certificate
instructing the Trustee and such Paying Agent or Paying Agents whether such
payment of principal of and any premium or interest on the Securities of that
series shall be made to Holders of Securities of that series or any related
coupons who are United States Aliens without withholding for or on account of
any tax, assessment or other governmental charge described in the Securities of
that series.  If any such withholding shall be required, then such Officers'
Certificate shall specify by country the amount, if any, required to be
withheld on such payments to such  Holders of Securities or coupons and the
Company will pay to the Trustee or such Paying Agent the additional amounts
required by this Section.  The Company covenants to indemnify the Trustee and
any Paying Agent for, and to hold them harmless against, any loss, liability or
expense reasonably incurred without negligence or bad faith on their part
arising out of or in connection with actions taken or omitted by any of them in
reliance on any Officers' Certificate furnished pursuant to this Section.

SECTION 1005.  Purchase of Securities by Company or Subsidiary.

         If and so long as the Securities of a series are listed on The
International Stock Exchange of the United Kingdom and the Republic of Ireland
Limited and such stock exchange shall so require, the Company will not, and
will not permit any of its Subsidiaries to, purchase any Securities of that
series by private treaty at a price (exclusive of expenses and accrued
interest) which exceeds 120% of the mean of the nominal quotations of the
Securities of that series as shown in The Stock Exchange Daily Official List
for the last trading day preceding the date of purchase.

SECTION 1006.  Limitation on Liens.

         (a)     So long as any Securities are Outstanding, the Company will
not, nor will it permit any Subsidiary of the Company to, issue, assume or
guarantee any indebtedness for money borrowed (hereinafter in this Article Ten
referred to as "Debt"), if such Debt is secured by a mortgage, pledge, security
interest or lien (any mortgage, pledge, security interest or lien being
hereinafter in this Article Ten referred to as a "mortgage" or "mortgages")
upon any real or personal property of the Company or any Subsidiary of the
Company or upon any shares of stock or other equity interest or indebtedness of
any  Subsidiary of the Company (whether such property, shares of stock or other
equity interest or indebtedness is now owned or hereafter acquired), without in
any such case effectively providing, concurrently with the issuance, assumption
or guarantee of such Debt, that the Securities (together with, if the Company
shall so determine, any other indebtedness of or guaranteed by the Company or
such Subsidiary ranking equally with the Securities then outstanding and
existing or thereafter created) shall be secured equally and ratably with (or
prior to) such Debt; provided, however, that the foregoing restriction shall
not apply to:

                 (1)      mortgages (i) existing on the date such Securities
         were originally issued under this Indenture or (ii) provided for under
         the terms of agreements existing on such date securing indebtedness
         existing on such date;





                                      -46-
<PAGE>   53
                 (2)      mortgages on Current Assets to secure Current
         Liabilities;

                 (3)      mortgages on property acquired, constructed, altered
         or improved by the Company or any Subsidiary of the Company after the
         date of this Indenture which are created or assumed contemporaneously
         with, or within one year after, such acquisition (or in the case of
         property constructed, altered or improved, after the completion and
         commencement of commercial operation of such property, whichever is
         later) to secure or provide for the payment of any part of the
         purchase price of such property or the cost of such construction,
         alteration or improvement, it being understood that if a commitment
         for such a financing is obtained prior to or within such one year
         period, the applicable mortgage shall be deemed to be included in this
         clause (3) whether or not such mortgage is created within such one
         year period; provided that in the case of any such construction,
         alteration or improvement the mortgage shall not apply to any property
         theretofore owned by the Company or any  Subsidiary of the Company,
         other than (i) the property so altered or improved and (ii) any
         theretofore unimproved real property on which the property so
         constructed or altered, or the improvement, is located;

                 (4)      mortgages on any property existing at the time of
         acquisition thereof (including mortgages on any property acquired from
         a Person which is consolidated with or merged with or into the Company
         or a Subsidiary of the Company) and mortgages outstanding at the time
         any Person becomes a Subsidiary of the Company that are not incurred
         in connection with such entity becoming a Subsidiary of the Company;

                 (5)      mortgages in favor of the Company or any Subsidiary
         of the Company;

                 (6)      mortgages on any property (i) in favor of the United
         States, any State, any foreign country or any department, agency,
         instrumentality or political subdivision of any such jurisdiction, to
         secure partial, progress, advance or other payments pursuant to any
         contract or statute, (ii) securing any indebtedness incurred for the
         purpose of financing all or any part of the purchase price or the cost
         of constructing, installing or improving the property subject to such
         mortgages, including, without limitation, mortgages to secure Debt of
         the pollution control or industrial revenue bond type, or (iii)
         securing indebtedness issued or guaranteed by the United States, any
         State thereof, any foreign country, or any department, agency,
         instrumentality or political subdivision of any such jurisdiction; and

                 (7)      any extension, renewal or replacement (or successive
         extensions, renewals or replacements), in whole or in part, of any
         mortgage referred to in any of the foregoing clauses (1), (2), (3),
         (4), (5) and (6); provided, however, that the principal amount of Debt
         secured thereby shall not exceed the principal amount of Debt so
         secured at the time of such extension, renewal or replacement,
         together with the reasonable costs related to such extension, renewal
         or replacement, and that such extension, renewal or replacement shall
         be limited to all or a part of the property which secured the mortgage
         so extended, renewed or replaced (plus improvements on such property).

         (b)     Notwithstanding the provisions of subsection (a) of this
Section 1006, the Company and any  Subsidiary of the Company may issue, assume
or guarantee secured Debt, which would otherwise be subject to the foregoing
restrictions, in an aggregate amount which, together with all other such
secured Debt and together with the aggregate amount of Attributable
Indebtedness of the Company and its Subsidiaries deemed to be outstanding in
respect of all Sale/Leaseback Transactions entered into pursuant to Section
1009 (excluding any such Sale/Leaseback Transactions the proceeds of which have
been applied in accordance with clause (b) or (c) of Section 1009) does not
exceed 10% of Consolidated Net Worth, as shown on a consolidated balance sheet,
as of a date not more than 90 days prior to the proposed transaction, prepared
by the Company in accordance with generally accepted accounting principles.





                                      -47-
<PAGE>   54
SECTION 1007.  Statement by Officer as to Default.

         The Company shall, so long as any Securities are Outstanding, deliver
to the Trustee, within 120 days after the end of each fiscal year of the
Company beginning in 1996, a brief certificate from the principal executive
officer, principal financial officer or principal accounting officer as to his
or her knowledge of the Company's compliance with all conditions and covenants
under this Indenture.  For purposes of this Section 1007, such compliance shall
be determined without regard to any period of grace or requirement of notice
under this Indenture.  Such certificate shall comply with Section 314(a)(4) of
the Trust Indenture Act.

SECTION 1008.  Waiver of Certain Covenants.

         The Company may omit in any particular instance to comply with any
term, provision or condition set forth in Section 1005, 1006 or 1009 with
respect to the Securities of any series if before the time for such compliance
the Holders of a majority in principal amount of the Outstanding Securities of
such series shall, by Act of such Holders, either waive such compliance in such
instance or generally waive compliance with such term, provision or condition,
but no such waiver shall extend to or affect such term, provision or condition
except to the extent so expressly waived, and, until such waiver shall become
effective, the obligations of the Company and the duties of the Trustee in
respect of any such term, provision or condition shall remain in full force and
effect.

SECTION 1009.  Limitation on Sale/Leaseback Transactions.

         So long as any Securities are Outstanding, the Company shall not, and
shall not permit any Subsidiary of the Company to, enter into any
Sale/Leaseback Transaction with any Person (other than the Company or a
Subsidiary of the Company) unless:

                 (a)      at the time of entering into such Sale/Leaseback
         Transaction, the Company or such Subsidiary would be entitled to incur
         Debt, in a principal amount equal to the Attributable Indebtedness
         with respect to such Sale/Leaseback Transaction, secured by a mortgage
         on the property subject to such Sale/Leaseback Transaction, pursuant
         to Section 1006 without equally and ratably securing the Securities
         pursuant to such Section; or

                 (b)      after the Issue Date and within a period commencing
         six months prior to the consummation of such Sale/Leaseback
         Transaction and ending six months after the consummation thereof, the
         Company or such Subsidiary shall have expended for property used or to
         be used in the ordinary course of business of the Company or such
         Subsidiary (including amounts expended for additions, expansions,
         alterations, repairs and improvements thereto) an amount equal to all
         or a portion of the net proceeds of such Sale/Leaseback Transaction,
         and the Company shall have elected to designate such amount as a
         credit against such Sale/Leaseback Transaction (with any such amount
         not being so designated to be applied as set forth in clause (c)
         below); or

                 (c)      during the 12-month period after the effective date
         of such Sale/Leaseback Transaction, the Company shall have applied to
         the voluntary defeasance or retirement of Securities or any pari passu
         indebtedness of the Company an amount equal to the net proceeds of the
         sale or transfer of the real or personal property leased in such
         Sale/Leaseback Transaction, which amount shall not be less than the
         fair value of such property at the time of entering into such
         Sale/Leaseback Transaction (adjusted to reflect the remaining term of
         the lease and any amount expended by the Company as set forth in
         clause (b) above), less an amount equal to the principal amount of
         Securities and pari passu indebtedness voluntarily defeased or retired
         by the Company within such 12-month period and not designated as a
         credit against any other Sale/Leaseback Transaction entered into by
         the Company or any Subsidiary of the Company during such period.





                                      -48-
<PAGE>   55

                                ARTICLE  ELEVEN

                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.

         Securities of any series which are redeemable before their Stated
Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for Securities of any
series) in accordance with this Article.

SECTION 1102.  Election to Redeem; Notice to Trustee.

         The election of the Company to redeem any Securities shall be
evidenced by a Board Resolution.  In the case of any redemption at the election
of the Company of less than all the  Securities of any series, the Company
shall, at least 45 days prior to the Redemption Date fixed by the Company
(unless a shorter notice shall be satisfactory to the Trustee), notify the
Trustee of such Redemption Date, of the principal amount of Securities of such
series to be redeemed and, if applicable, of the tenor of the Securities of
such series to be redeemed.  In the case of any redemption of Securities (i)
prior to the expiration of any restriction on such redemption provided in the
terms of such Securities or elsewhere in this Indenture, or (ii) pursuant to an
election of the Company which is subject to a condition specified in the terms
of such Securities, the Company shall furnish the Trustee with an Officers'
Certificate evidencing compliance with such restriction or condition.

SECTION 1103.  Selection of Securities to Be Redeemed.

         If less than all the Securities of any series are to be redeemed
(unless all of the Securities of such series of a specified tenor are to be
redeemed), the particular Securities to be redeemed shall be selected not more
than 45 days prior to the Redemption Date by the Trustee, from the Outstanding
Securities of such series not previously called for redemption, by such method
as the Trustee shall deem fair and appropriate and which may provide for the
selection for redemption of portions (equal to the minimum authorized
denomination for Securities of that series or any integral multiple thereof) of
the principal amount of Registered Securities of such series of a denomination
larger than the minimum authorized denomination for Securities of that series
or of the principal amount of global Securities of such series.  If less than
all of the Securities of such series and of a specified tenor are to be
redeemed, the particular Securities to be redeemed shall be selected not more
than 45 days prior to the Redemption Date by the Trustee, from the Outstanding
Securities of such series and specified tenor not previously called for
redemption in accordance with the preceding sentence.

         The Trustee shall promptly notify the Company in writing of the
Securities selected for redemption and, in the case of any Securities selected
for partial redemption, the principal amount thereof to be redeemed.

         For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Securities shall relate,
in the case of any Securities redeemed or to be redeemed only in part, to the
portion of the principal amount of such Securities which has been or is to be
redeemed.

SECTION 1104.  Notice of Redemption.

         Notice of redemption shall be given in the manner provided in Section
106 to the Holders of Securities to be redeemed not less than 30 nor more than
60 days prior to the Redemption Date.

         All notices of redemption shall state:





                                      -49-
<PAGE>   56
                 (1)      the Redemption Date,

                 (2)      the Redemption Price,

                 (3)      if less than all the Outstanding Securities of any
         series are to be redeemed, the identification (and, in the case of
         partial redemption of any Securities, the principal amounts) of the
         particular Securities to be redeemed, and that on and after the
         Redemption Date, upon surrender of the Securities, new Securities of
         such series in principal amount equal to the unredeemed part thereof
         will be issued,

                 (4)      that on the Redemption Date the Redemption Price will
         become due and payable upon each such Security to be redeemed and, if
         applicable, that interest thereon will cease to accrue on and after
         said date,

                 (5)      the place or places where such Securities, together
         in the case of Bearer Securities with all coupons appertaining
         thereto, if any, maturing after the Redemption Date, are to be
         surrendered for payment of the Redemption Price, and

                 (6)      that the redemption is for a sinking fund, if such is
         the case.

A notice of redemption published as contemplated by Section 106 need not
identify particular Registered Securities to be redeemed.

         Notice of redemption of Securities to be redeemed at the election of
the Company shall be given by the Company or, at the Company's request, by the
Trustee in the name and at the expense of the Company.

SECTION 1105.  Deposit of Redemption Price.

         On or prior to any Redemption Date, the Company shall deposit with the
Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 1003) an amount of
money sufficient to pay the Redemption Price of, and (except if the Redemption
Date shall be an Interest Payment Date) accrued interest on, all the Securities
which are to be redeemed on that date.

SECTION 1106.  Securities Payable on Redemption Date.

         Notice of redemption having been given as aforesaid, the Securities so
to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest and the coupons for such
interest appertaining to any Bearer Securities so to be redeemed, except to the
extent provided below, shall be void.  Upon surrender of any such Security for
redemption in accordance with said notice, together with all coupons, if any,
appertaining thereto maturing after the Redemption Date, such Security shall be
paid by the Company at the Redemption Price, together with accrued interest to
the Redemption Date; provided, however, that installments of interest on Bearer
Securities whose Stated Maturity is on or prior to the Redemption Date shall be
payable only at an office or agency located outside the United States (except
as otherwise provided in Section 1002) and, unless otherwise specified as
contemplated by Section 301, only upon presentation and surrender of coupons
for such interest, and provided, further, that, unless otherwise specified as
contemplated by Section 301, installments of interest on Registered Securities
whose Stated Maturity is on or prior to the Redemption Date shall be payable to
the Holders of such Securities, or one or more Predecessor Securities,
registered as such at the close of business on the relevant Regular Record Date
or Special Record Date, as the case may be, according to their terms and the
provisions of Section 307.





                                      -50-
<PAGE>   57
         If any Bearer Security surrendered for redemption shall not be
accompanied by all appurtenant coupons maturing after the Redemption Date, such
Security may be paid after deducting from the Redemption Price an amount equal
to the face amount of all such missing coupons, or the surrender of such
missing coupon or coupons may be waived by the Company and the Trustee if there
be furnished to them such security or indemnity as they may require to save
each of them and any Paying Agent harmless.  If thereafter the Holder of such
Security shall surrender to the Trustee or any Paying Agent any such missing
coupon in respect of which a deduction shall have been made from the Redemption
Price, such Holder shall be entitled to receive the amount so deducted;
provided, however, that interest represented by coupons shall be payable only
at an office or agency located outside the United States (except as otherwise
provided in Section 1002) and, unless otherwise specified as contemplated by
Section 301, only upon presentation and surrender of those coupons.

         If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal and any premium shall, until
paid, bear interest from the Redemption Date at the rate prescribed therefor in
the Security or, in the case of Original Issue Discount Securities, the
Securities' yield to maturity.

SECTION 1107.  Securities Redeemed in Part.

         Any Registered Security which is to be redeemed only in part shall be
surrendered at a Place of Payment thereof (with, if the Company or the Trustee
so requires, due endorsement by, or a written instrument of transfer in form
satisfactory to the Company and the Trustee duly executed by, the Holder
thereof or his attorney duly authorized in writing), and the Company shall
execute, and the Trustee shall authenticate and deliver to the Holder of such
Security without service charge, a new Registered Security or Securities of the
same series and of like tenor, of any authorized denomination as requested by
such Holder, in aggregate principal amount equal to and in exchange for the
unredeemed portion of the principal of the Security so surrendered.


                                ARTICLE  TWELVE

                                 SINKING FUNDS

SECTION 1201.  Applicability of Article.

         The provisions of this Article shall be applicable to any sinking fund
for the retirement of Securities of a series except as otherwise specified as
contemplated by Section 301 for Securities of such series.

         The minimum amount of any sinking fund payment provided for by the
terms of Securities of any series is herein referred to as a "mandatory sinking
fund payment," and any payment in excess of such minimum amount provided for by
the terms of Securities of any series is herein referred to as an "optional
sinking fund payment."  If provided for by the terms of Securities of any
series, the cash amount of any sinking fund payment may be subject to reduction
as provided in Section 1202.  Each sinking fund payment shall be applied to the
redemption of Securities of any series as provided for by the terms of
Securities of such series.

SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities.

         The Company (1) may deliver Outstanding Securities of a series (other
than any previously called for redemption), together in the case of any Bearer
Securities of such series with all unmatured coupons appertaining thereto, and
(2) may apply as a credit Securities of a series which have been redeemed
either at the election of the Company pursuant to the terms of such Securities
or through the application of permitted optional sinking fund payments pursuant
to the terms of such Securities, in each case in satisfaction of all or





                                      -51-
<PAGE>   58
any part of any sinking fund payment with respect to the Securities of such
series required to be made pursuant to the terms of such Securities as provided
for by the terms of such series, provided that such Securities have not been
previously so credited.  Such Securities shall be received and credited for
such purpose by the Trustee at the Redemption Price specified in such
Securities for redemption through operation of the sinking fund and the amount
of such sinking fund payment shall be reduced accordingly.

SECTION 1203.  Redemption of Securities for Sinking Fund.

         Not less than 60 days prior to each sinking fund payment date for any
series of Securities, the Company will deliver to the Trustee a Company Order
specifying the amount of the next ensuing sinking fund payment for that series
pursuant to the terms of that series, the portion thereof, if any, which is to
be satisfied by payment of cash and the portion thereof, if any, which is to be
satisfied by delivering and crediting Securities of that series pursuant to
Section 1202 and will also deliver to the Trustee any Securities to be so
credited.  Not less than 45 days before each such sinking fund payment date the
Trustee shall select the Securities to be redeemed upon such sinking fund
payment date in the manner specified in Section 1103 and cause notice of the
redemption thereof to be given in the name of and at the expense of the Company
in the manner provided in Section 1104.  Such notice having been duly given,
the redemption of such Securities shall be made upon the terms and in the
manner stated in Sections 1106 and 1107.


                               ARTICLE  THIRTEEN

                       DEFEASANCE AND COVENANT DEFEASANCE

SECTION 1301.  Company's Option to Effect Defeasance or Covenant Defeasance.

         If specified to be applicable with respect to Securities of a series
pursuant to Section 301, the Company may at its option by Board Resolution, at
any time, elect to have either Section 1302 or Section 1303 applied to the
Outstanding Securities of any series upon compliance with the conditions set
forth below in this Article Thirteen.

SECTION 1302.  Defeasance and Discharge.

         Upon the Company's exercise of the option provided in Section 1301
applicable to this Section, the Company shall be deemed to have been discharged
from its obligations with respect to the Outstanding Securities of any series
on the date the conditions set forth below are satisfied (hereinafter,
"defeasance").  For this purpose, such defeasance means that the Company shall
be deemed to have paid and discharged the entire indebtedness represented by
the Outstanding Securities of such series and to have satisfied all its other
obligations under the Securities of such series and this Indenture insofar as
the Securities of such series are concerned (and the Trustee, at the expense of
the Company, shall execute proper instruments acknowledging the same), except
for the following which shall survive until otherwise terminated or discharged
hereunder:  (A) the rights of Holders of the Securities of such series to
receive, solely from the trust fund described in Section 1304 and as more fully
set forth in such Section, payments in respect of the principal of and any
premium and interest on the Securities of such series when such payments are
due, (B) the Company's obligations with respect to such Securities under
Sections 304, 305, 306, 1002, 1003 and 1004, (C) the rights, powers, trusts,
duties and immunities of the Trustee hereunder and (D) this Article Thirteen.
Subject to compliance with this Article Thirteen, the Company may exercise its
option under this Section 1302 notwithstanding the prior exercise of its option
under Section 1303.





                                      -52-
<PAGE>   59
SECTION 1303.  Covenant Defeasance.

         Upon the Company's exercise of the option provided in Section 1301
applicable to this Section, (i) the Company shall be released from its
obligations with respect to the Securities of such series under Sections 801,
1005, 1006 and 1009, and (ii) the occurrence of an event specified in Sections
501(3), (4), (7) or (8) shall not be deemed to be an Event of Default on and
after the date the conditions set forth below are satisfied (hereinafter,
"covenant defeasance"), but the remainder of this Indenture and such Securities
shall be unaffected thereby.  For this purpose, such covenant defeasance means
that the Company may omit to comply with and shall have no liability in respect
of any term, condition or limitation set forth in any such Section or clause
whether directly or indirectly by reason of any reference elsewhere herein to
any such Section or clause or by reason of any reference in any such Section or
clause to any other provision herein or in any other document, but the
remainder of this Indenture and such Securities shall be unaffected thereby.

SECTION 1304.  Conditions to Defeasance or Covenant Defeasance.

         The following shall be the conditions to application of either Section
1302 or Section 1303 to the then Outstanding Securities of any series:

                 (1)      The Company shall irrevocably have deposited or
         caused to be deposited with the Trustee (or another trustee satisfying
         the requirements of Section 609 who shall agree to comply with the
         provisions of this Article Thirteen applicable to it) as trust funds
         in trust for the purpose of making the following payments,
         specifically pledged as security for, and dedicated solely to, the
         benefit of the Holders of the Securities of such series, (A) money in
         an amount, or (B) U.S. Government Obligations which through the
         scheduled payment of principal and interest in respect thereof in
         accordance with their terms will provide, not later than one day
         before the due date of any payment, money in an amount, or (C) a
         combination thereof, sufficient, in the opinion of a nationally
         recognized firm of independent public accountants expressed in a
         written certification thereof delivered to the Trustee, to pay and
         discharge, and which shall be applied by the Trustee (or other
         qualifying trustee) to pay and discharge, the principal of (and
         premium, if any, on) and each installment of interest on the
         Securities and any coupons appertaining thereto on the Stated Maturity
         of such principal (and premium, if any) or installment of interest in
         accordance with the terms of this Indenture and of the Securities of
         such series.  For this purpose, "U.S. Government Obligations" means
         securities that are (x) direct obligations of the United States for
         the payment of which its full faith and credit is pledged or (y)
         obligations of a Person controlled or supervised by and acting as an
         agency or instrumentality of the United States the payment of which is
         unconditionally guaranteed as a full faith and credit obligation by
         the United States, which, in either case, are not callable or
         redeemable at the option of the issuer thereof, and shall also include
         a depository receipt issued by a bank (as defined in Section 3(a)(2)
         of the Securities Act of 1933, as amended) as custodian with respect
         to any such U.S. Government Obligation or a specific payment of
         principal of or interest on any such U.S. Government Obligation held
         by such custodian for the account of the holder of such depository
         receipt, provided that (except as required by law) such custodian is
         not authorized to make any deduction from the amount payable to the
         holder of such depository receipt from any amount received by the
         custodian in respect of the U.S. Government Obligation or the specific
         payment of principal of or interest on the U.S. Government Obligation
         evidenced by such depository receipt.

                 (2)      In the case of an election under Section 1302, the
         Company shall have delivered to the Trustee an Opinion of Counsel
         stating that (x) the Company has received from, or there has been
         published by, the Internal Revenue Service a ruling, or (y) since the
         date of this Indenture there has been a change in the applicable
         United States Federal income tax law, in either case to the effect
         that, and based thereon such opinion shall confirm that, the Holders
         of the Outstanding Securities of such series will not recognize
         income, gain or loss for United States Federal income tax purposes as
         a result of such deposit, defeasance and discharge and will be subject
         to United States Federal





                                      -53-
<PAGE>   60
         income tax on the same amounts, in the same manner and at the same
         times as would have been the case if such deposit, defeasance and
         discharge had not occurred.

                 (3)      In the case of an election under Section 1303, the
         Company shall have delivered to the Trustee an Opinion of Counsel to
         the effect that the Holders of the Outstanding Securities of such
         series will not recognize gain or loss for United States Federal
         income tax purposes as a result of such deposit and covenant
         defeasance and will be subject to United States Federal income tax on
         the same amount, in the same manner and at the same times as would
         have been the case if such deposit and covenant defeasance had not
         occurred.

                 (4)      No Event of Default or event which with notice or
         lapse of time or both would become an Event of Default with respect to
         the Securities of such series shall have occurred and be continuing on
         the date of such deposit or, insofar as subsections 501(5) and (6) are
         concerned, at any time during the period ending on the 121st day after
         the date of such deposit (it being understood that this condition
         shall not be deemed satisfied until the expiration of such period).

                 (5)      Such defeasance or covenant defeasance shall not
         cause the Trustee to have a conflicting interest within the meaning of
         the Trust Indenture Act with respect to any securities of the Company.

                 (6)      Such defeasance or covenant defeasance shall not
         result in a breach or violation of, or constitute a default under, any
         other agreement or instrument to which the Company is a party or by
         which it is bound.

                 (7)      The Company shall have delivered to the Trustee an
         Officers' Certificate and an Opinion of Counsel, each stating that all
         conditions precedent provided for relating to either the defeasance
         under Section 1302 or the covenant defeasance under Section 1303 (as
         the case may be) have been complied with.

                 (8)      Such defeasance or covenant defeasance shall not
         result in the trust arising from such deposit constituting an
         investment company as defined in the Investment Company Act of 1940,
         as amended, or such trust shall be qualified under such Act or exempt
         from regulation thereunder.

SECTION 1305.  Deposited Money and U.S. Government Obligations to Be Held in
               Trust; Other Miscellaneous Provisions.

         Subject to the provisions of the last paragraph of Section 1003, all
money and U.S. Government Obligations (including the proceeds thereof)
deposited with the Trustee (or other qualifying trustee -- collectively, for
purposes of this Section 1305, the "Trustee") pursuant to Section 1304 in
respect of the Securities of such series shall be held in trust and applied by
the Trustee, in accordance with the provisions of such Securities of such
series and this Indenture, to the payment, either directly or through any
Paying Agent (including the Company acting as its own Paying Agent) as the
Trustee may determine, to the Holders of the Securities of such series, of all
sums due and to become due thereon in respect of principal (and premium, if
any) and interest, but such money need not be segregated from other funds
except to the extent required by law.

         The Company shall pay and indemnify the Trustee against any tax, fee
or other charge imposed on or assessed against the U.S. Government Obligations
deposited pursuant to Section 1304 or the principal and interest received in
respect thereof other than any such tax, fee or other charge which by law is
for the account of the Holders of the Outstanding Securities.




                                     -54-

<PAGE>   61


         Anything in this Article Thirteen to the contrary notwithstanding, the
Trustee shall deliver or pay to the Company from time to time upon Company
Request any  money or U.S. Government Obligations held by the Trustee as
provided in Section 1304 which, in the opinion of a nationally recognized firm
of independent public accountants expressed in a written certification thereof
delivered to the Trustee, are in excess of the amount thereof which would then
be required to be deposited to effect an equivalent defeasance or covenant
defeasance.

SECTION 1306.  Reinstatement.

         If the Trustee or the Paying Agent is unable to apply any money in
accordance with Section 1302 or 1303 by reason of any order or judgment of any
court or governmental authority enjoining, restraining or otherwise prohibiting
such application, then the Company's obligations under this Indenture and the
Securities of such series shall be revived and reinstated as though no deposit
had occurred pursuant to this Article Thirteen until such time as the Trustee
or Paying Agent is permitted to apply all such money in accordance with Section
1302 or 1303; provided, however, that if the Company makes any payment of
principal of or any premium or interest on any Security following the
reinstatement of its obligations, the Company shall be subrogated to the rights
of the Holders of the Securities of such series to receive such payment from
the money held by the Trustee or the Paying Agent.


                               ARTICLE  FOURTEEN

                    MEETINGS OF HOLDERS OF BEARER SECURITIES

SECTION 1401.  Purposes for Which Meetings May Be Called.

         If Securities of a series are issuable as Bearer Securities, a meeting
of Holders of Securities of such series may be called at any time and from time
to time pursuant to this Article to make, give or take any request, demand,
authorization, direction, notice, consent, waiver or other action provided by
this Indenture to be made, given or taken by Holders of Securities of such
series.

SECTION 1402.  Call, Notice and Place of Meetings.

         (a)     The Trustee may at any time call a meeting of Holders of
Bearer Securities of any series for any purpose specified in Section 1401, to
be held at such time and at such place in the Borough of Manhattan, The City of
New York, or in London or such other location as the Trustee shall determine.
Notice of every meeting of Holders of Bearer Securities of any series, setting
forth the time and the place of such meeting and in general terms the action
proposed to be taken at such meeting, shall be given, in the manner provided in
Section 106, not less than 21 nor more than 120 days prior to the date fixed
for the meeting.

         (b)     In case at any time the Company, pursuant to a Board
Resolution, or the Holders of at least 10% in aggregate principal amount of the
Outstanding Bearer Securities of any series shall have requested the Trustee to
call a meeting of the Holders of Securities of such series for any purpose
specified in Section 1401, by written request setting forth in reasonable
detail the action proposed to be taken at the meeting, and the Trustee shall
not have made the first publication of the notice of such meeting within 21
days after receipt of such request or shall not thereafter proceed to cause the
meeting to be held as provided herein, then the Company or the Holders of
Securities of such series in the amount above specified, as the case may be,
may determine the time and the place in the Borough of Manhattan, The City of
New York, or in London or such other location as the Trustee shall determine
for such meeting and may call such meeting for such purposes by giving notice
thereof as provided in subsection (a) of this Section.





                                     -55-
<PAGE>   62
SECTION 1403.  Persons Entitled to Vote at Meetings.

         To be entitled to vote at any meeting of Holders of Bearer Securities
a Person shall (a) be a Holder of one or more Bearer Securities or (b) be a
Person appointed by an instrument in writing as proxy by a Holder of one or
more Bearer Securities.  The only Persons who shall be entitled to be present
or to speak at any meeting of Holders of Bearer Securities shall be the Persons
entitled to vote at such meeting and their counsel and any representatives of
the Trustee and its counsel and any representatives of the Company and its
counsel.

SECTION 1404.  Quorum; Action.

         The Persons entitled to vote a majority in aggregate principal amount
of the Outstanding Bearer Securities of a series shall constitute a quorum for
a meeting of Holders of Securities of such series. In the absence of a quorum
within 30 minutes following the time appointed for any such meeting, the
meeting shall, if convened at the request of Holders of Securities of such
series, be dissolved.  In any other case the meeting may be adjourned for a
period of not less than 10 days as determined by the chairman of the meeting
prior to the adjournment of such meeting.  In the absence of a quorum at any
such adjourned meeting, such adjourned meeting may be further adjourned for a
period of not less than 10 days as determined by the chairman of the meeting
prior to the adjournment of such adjourned meeting.  Notice of the reconvening
of any adjourned meeting shall be given as provided in Section 1402(a), except
that such notice need be given only once not less than five days prior to the
date on which the meeting is scheduled to be reconvened.  Notice of the
reconvening of an adjourned meeting shall state expressly the percentage, as
provided above, of the aggregate principal amount of the Outstanding Securities
of such series which shall constitute a quorum.

         Except as limited by Section 512 or the proviso to the first paragraph
of Section 902, any resolution presented to a meeting (or adjourned meeting
duly reconvened at which a quorum is present as aforesaid) may be adopted by
the affirmative vote of the Holders of a majority in principal amount of the
Outstanding Bearer Securities of that series; provided, however, that any
resolution with respect to any request, demand, authorization, direction,
notice, consent, waiver or other action which this Indenture expressly provides
may be made, given or taken by the Holders of a specified percentage, which is
less than a majority, in aggregate principal amount of the Outstanding Bearer
Securities of a series may be adopted at a meeting (or an adjourned meeting
duly reconvened and at which a quorum is present as aforesaid) by the
affirmative vote of the Holders of such specified percentage in principal
amount of the Outstanding Bearer Securities of that series.

         To the extent consistent with the terms of this Indenture, any
resolution passed or action taken at any meeting of Holders of Bearer
Securities of any series duly held in accordance with this Section shall be
binding on all the Holders of Securities of such series and the related
coupons, whether or not present or represented at the meeting.

SECTION 1405.  Determination of Voting Rights; Conduct and Adjournment of
               Meetings.

         (a)     Notwithstanding any other provisions of this Indenture, the
Trustee may make such reasonable regulations as it may deem advisable for any
meeting of Holders of Bearer Securities of a series in regard to proof of the
holding of Securities of such series and of the appointment of proxies and in
regard to the appointment and duties of inspectors of votes, the submission and
examination of proxies, certificates and other evidence of the right to vote,
and such other matters concerning the conduct of the meeting as it shall deem
appropriate.  Except as otherwise permitted or required by any such
regulations, the holding of Bearer Securities shall be proved in the manner
specified in Section 104 and the appointment of any proxy shall be proved in
the manner specified in Section 104 or by having the signature of the Person
executing the proxy witnessed or guaranteed by any trust company, bank or
banker authorized by Section 104 to certify





                                     -56-
<PAGE>   63
to the holding of Bearer Securities.  Such regulations may provide that written
instruments appointing proxies, regular on their face, may be presumed valid
and genuine without the proof specified in Section 104 or other proof.

         (b)     The Trustee shall, by an instrument in writing, appoint a
temporary chairman of the meeting, unless the meeting shall have been called by
the Company or by Holders of Bearer Securities as provided in Section 1402(b),
in which case the Company or the Holders of Bearer Securities of the series
calling the meeting, as the case may be, shall in like manner appoint a
temporary chairman.  A permanent chairman and a permanent secretary of the
meeting shall be elected by vote of the Persons entitled to vote a majority in
aggregate principal amount of the Outstanding Securities of such series
represented at the meeting.

         (c)     At any meeting each Holder of a Security of such series or
proxy shall be entitled to one vote for each $1,000 principal amount of the
Outstanding Securities of such series held or represented by him; provided,
however, that no vote shall be cast or counted at any meeting in respect of any
Bearer Security challenged as not Outstanding and ruled by the chairman of the
meeting to be not Outstanding.  The chairman of the meeting shall have no right
to vote, except as a Holder of a Security of such series or proxy.

         (d)     Any meeting of Holders of Bearer Securities of any series duly
called pursuant to Section 1402 at which a quorum is present may be adjourned
from time to time by Persons entitled to vote a majority in principal amount of
the Outstanding Securities of such series represented at the meeting; and the
meeting may be held as so adjourned without further notice.

SECTION 1406.  Counting Votes and Recording Action of Meetings.

         The vote upon any resolution submitted to any meeting of Holders of
Bearer Securities of any series shall be by written ballots on which shall be
subscribed the signatures of the Holders of Securities of such series or of
their representatives by proxy and the principal amounts and serial numbers of
the Outstanding Securities of such series held or represented by them.  The
permanent chairman of the meeting shall appoint two inspectors of votes who
shall count all votes cast at the meeting for or against any resolution and who
shall make and file with the permanent secretary of the meeting their verified
written reports in duplicate of all votes cast at the meeting.  A record, at
least in duplicate, of the proceedings of each meeting of Holders of Bearer
Securities of any series shall be prepared by the permanent secretary of the
meeting and there shall be attached to said record the original reports of the
inspectors of votes on any vote by ballot taken thereat and affidavits by one
or more persons having knowledge of the facts setting forth a copy of the
notice of the meeting and showing that said notice was given as provided in
Section 1402 and, if applicable, Section 1404.  Each copy shall be signed and
verified by the affidavits of the permanent chairman and permanent secretary of
the meeting and one such copy shall be delivered to the Company, and another to
the Trustee to be preserved by the Trustee, the latter to have attached thereto
the ballots voted at the meeting.  Any record so signed and verified shall be
conclusive evidence of the matters therein stated.


                          ____________________________

         This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.





                                     -57-
<PAGE>   64
         IN WITNESS WHEREOF, the parties hereto have caused this Indenture to
be duly executed, all as of the day and year first above written.

                                       COMPANY

                                       WEATHERFORD ENTERRA, INC.


                                       By    /s/ Norman W. Nolen             
                                          --------------------------------------
                                            Norman W. Nolen
                                            Senior Vice President,
                                            Chief Financial Officer and 
                                            Treasurer

                                       TRUSTEE

                                       BANK OF MONTREAL TRUST COMPANY


                                       By     /s/ Therese Gaballah           
                                          --------------------------------------
                                            Therese Gaballah
                                            Vice President





                                     -58-
<PAGE>   65
                                   EXHIBIT A

                       FORM OF CERTIFICATE TO BE GIVEN BY
                              BENEFICIAL OWNER OF
                    INTEREST IN A TEMPORARY GLOBAL SECURITY


                           WEATHERFORD ENTERRA, INC.

                             [Title of Securities]

                               (the "Securities")


         This is to certify that as of the date hereof, and except as set forth
below, the above-captioned Securities held by you for our account (i) are owned
by person(s) that are not citizens or residents of the United States, domestic
partnerships, domestic corporations or any estate or trust the income of which
is subject to United States Federal income taxation regardless of its source
("United States persons"), (ii) are owned by United States person(s) that are
(A) foreign branches of United States financial institutions (as defined in
U.S. Treasury Regulations Section 1.165-12(c)(1)(v)) ("financial
institutions") purchasing for their own account or for resale, or (B) United
States person(s) who acquired Securities through the foreign branches of the
United States financial institutions and who hold the Securities through such
United States financial institutions on the date hereof (and in either case (A)
or (B), each such United States financial institution hereby agrees, on its own
behalf or through its agent, to comply with the requirements of Section
165(j)(3)(A), (B) or (C) of the Internal Revenue Code of 1986, as amended, and
the regulations thereunder), or (iii) are owned by United States or foreign
financial institution(s) for purposes of resale during the restricted period
(as defined in U.S. Treasury Regulations Section 1.163-5(c)(2)(i)(D)(7)), and
in addition if the owner of the Securities is a United States or foreign
financial institution described in clause (iii) above (whether or not also
described in clause (i) or (ii)), this is to further certify that such
financial institution has not acquired the Securities for purposes of resale
directly or indirectly to a United States person or to a person within the
United States or its possessions.

         If the Securities are of the category contemplated in Section
230.903(c)(3) of Regulation S under the Securities Act of 1933, as amended (the
"Act"), then this is also to certify that, except as set forth below, the
Securities are beneficially owned by (a) non-U.S. person(s) or (b) U.S.
person(s) who purchased the Securities in transactions which did not require
registration under the Act.

         As used herein, "United States" or "U.S." means the United States
(including the States and District of Columbia); and its "possessions" include
Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the
Northern Mariana Islands.

         We undertake to advise you promptly by tested telex on or prior to the
date on which you intend to submit your certification relating to the
Securities held by you for our account in accordance with your Operating
Procedures if any applicable statement herein is not correct on such date, and
in the absence of any such notification it may be assumed that this
certification applies as of such date.

         This certification excepts and does not relate to $________ of such
interest in the above Securities in respect of which we are not able to certify
and as to which we understand exchange and delivery of definitive Securities
(or, if relevant, exercise of any rights or collection of any interest) cannot
be made until we do so certify.





                                      A-1
<PAGE>   66
         We understand that this certification is required in connection with
certain tax laws and, if applicable, certain securities laws of the United
States.  In connection therewith, if administrative or legal proceedings are
commenced or threatened in connection with which this certification is or would
be relevant, we irrevocably authorize you to produce this certification to any
interested party in such proceedings.

*Dated: ______________, 199__.


                      NAME OF PERSON MAKING CERTIFICATION


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




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

* To be dated no earlier than the Certification Date.





                                      A-2
<PAGE>   67
                                   EXHIBIT B

                    FORM OF CERTIFICATION TO BE GIVEN BY THE
                       EURO-CLEAR OPERATOR OR CEDEL S.A.

                           WEATHERFORD ENTERRA, INC.

                             [Title of Securities]

                               (the "Securities")


         This is to certify that, based solely on certifications we have
received in writing, by tested telex or by electronic transmission from member
organizations appearing in our records as persons being entitled to a portion
of the principal amount set forth below (our "Member Organizations"),
substantially to the effect set forth in the Indenture, dated as of May 17,
1996, between Weatherford Enterra, Inc. and Bank of Montreal Trust Company, as
of the date hereof, [      ] principal amount of the above-captioned Securities 
(i) is owned by persons that are not citizens or residents of the United
States, domestic partnerships, domestic corporations or any estate or trust the
income of which is subject to United States Federal income taxation regardless
of its source ("United States persons"), (ii) is owned by United States persons
that are (A) foreign branches of United States financial institutions (as
defined in U.S. Treasury Regulations Section 1.165-12(c)(1)(v)) ("financial
institutions") purchasing for their own account or for resale, or (B) United
States persons who acquired the Securities through foreign branches of United
States financial institutions and who hold the Securities through such United
States financial institutions on the date hereof (and in either case (A) or
(B), each such United States financial institution has agreed, on its own
behalf or through its agent, that it will comply with the requirements of
Section 165(j)(3)(A), (B) or (C) of the Internal Revenue Code of 1986, as
amended, and the regulations thereunder), or (iii) is owned by United States or
foreign financial institutions for purposes of resale during the restricted
period (as defined in U.S. Treasury Regulations Section
1.163-5(c)(2)(i)(D)(7)), and to the further effect that the United States or
foreign financial institutions described in clause (iii) above (whether or not
also described in clause (i) or (ii)) have certified that they have not
acquired the Securities for purposes of resale directly or indirectly to a
United States person or to a person within the United States or its
possessions.

         If the Securities are of the category contemplated in Section
230.903(c)(3) of Regulation S under the Securities Act of 1933, as amended,
then this is also to certify with respect to such principal amount of
Securities set forth above that, except as set forth below, we have received in
writing, by tested telex or by electronic transmission, from our Member
Organizations entitled to a portion of such principal amount, certifications
with respect to such portion, substantially to the effect set forth in the
Indenture.

         We further certify (i) that we are not making available herewith for
exchange (or, if relevant, exercise of any rights or collection of any
interest) any portion of the temporary global Security excepted in such
certifications and (ii) that as of the date hereof we have not received any
notification from any of our Member Organizations to the effect that the
statements made by such Member Organizations with respect to any portion of the
part submitted herewith for exchange (or, if relevant, exercise of any rights
or collection of any interest) are no longer true and cannot be relied upon as
of the date hereof.

         We understand that this certification is required in connection with
certain tax laws and, if applicable,





                                      B-1
<PAGE>   68
certain securities laws of the United States.  In connection therewith, if
administrative or legal proceedings are commenced or threatened in connection
with which this certification is or would be relevant, we irrevocably authorize
you to produce this certification or a copy hereof to any interested party in
such proceedings.

Dated:  _______________, 199__.

 (dated the Exchange Date or the Interest
  Payment Date)


                                           [Morgan Guaranty Trust Company of New
                                            York, as operator of the Euro-clear
                                            System]

                                           or

                                           [CEDEL S.A.]



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




                                      B-2

<PAGE>   1
                                                                    EXHIBIT 4.2


         THIS SECURITY IS A BOOK-ENTRY SECURITY WITHIN THE MEANING OF THE
INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITORY
OR A NOMINEE OF A DEPOSITORY.  THIS SECURITY IS EXCHANGEABLE FOR SECURITIES
REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITORY OR ITS NOMINEE
ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND NO TRANSFER
OF THIS SECURITY (OTHER THAN A TRANSFER OF THIS SECURITY AS A WHOLE BY THE
DEPOSITORY TO A NOMINEE OF THE DEPOSITORY OR BY A NOMINEE OF THE DEPOSITORY TO
THE DEPOSITORY OR ANOTHER NOMINEE OF THE DEPOSITORY) MAY BE REGISTERED EXCEPT
IN SUCH LIMITED CIRCUMSTANCES.

         UNLESS THIS SECURITY IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF
THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE ISSUER (AS
DEFINED BELOW) OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT,
AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH
OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY
PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR
VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED
OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

No.  1                                                         U.S. $200,000,000
CUSIP 947071AA4
                           WEATHERFORD ENTERRA, INC.

                         7 1/4% NOTES DUE MAY 15, 2006

         WEATHERFORD ENTERRA, INC., a Delaware corporation (the "Issuer"), for
value received, hereby promises to pay to Cede & Co. or registered assigns the
principal sum of U.S. $200,000,000 on May 15, 2006, in such coin or currency of
the United States of America as at the time of payment shall be legal tender
for the payment of public and private debts, and to pay interest at an annual
rate of 7 1/4% payable on May 15 and November 15 in each year, to the person in
whose name the Security is registered at the close of  business on the record
date for such interest which shall be the preceding May 1 or November 1
(whether or not such record date is a Business Day), respectively, commencing
November 15, 1996, with interest payable on November 15, 1996 consisting of
interest accrued from May 28, 1996.  Payment of the principal of and interest
on this Security will be made at the office or agency of the Issuer maintained
for that purpose in Houston, Texas.

         Reference is made to the further provisions of this Security set forth
on the reverse hereof.  Such further provisions shall for all purposes have the
same effect as though fully set forth at this place.

         The statements set forth in the legends set forth above are an
integral part of the terms of this Security and by acceptance hereof the holder
of this Security agrees to be subject to, and bound by, the terms and
provisions set forth in each such legend, if any.

         This Security is issued in respect of an issue of an aggregate of U.S.
$200,000,000 principal amount of 7 1/4% Notes due May 15, 2006 of the Issuer
and is governed by the Indenture dated as of May 17, 1996, duly executed and
delivered by the Issuer to the Bank of Montreal Trust Company, as Trustee (the
"Trustee"), as supplemented by Board Resolution (such Indenture and Board
Resolution, collectively, the "Indenture").  The terms of the Indenture are
incorporated herein by reference.  This Security shall in all respects be
entitled to the same benefits as definitive Securities under the Indenture.

         If and to the extent that any provision of the Indenture limits,
qualifies, or conflicts with any other provision of the Indenture which is
required to be included in the Indenture by any of Sections 310 to 317,
inclusive, or is deemed applicable to the Indenture by virtue of the
provisions, of the Trust Indenture Act of 1939, as amended, such required
provision shall control.

         The Issuer hereby irrevocably undertakes to the holder hereof to
exchange this Security in accordance with the terms of the Indenture without
charge.

         This Security shall not be valid or become obligatory for any purpose
until the Certificate of Authentication hereon shall have been manually signed
by the Trustee under the Indenture.





<PAGE>   2
         IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly
executed under its corporate seal.

                                  WEATHERFORD ENTERRA, INC.



                                  By:        SPECIMEN                         
                                     ------------------------------------------
                                              Norman W. Nolen
                                              Senior Vice President,
                                              Chief Financial Officer
                                              and Treasurer





[Corporate Seal]

Attest:



       SPECIMEN                                    
- ----------------------------------------
L. Scott Biar
Assistant Secretary

Dated:  May 28, 1996



                         CERTIFICATE OF AUTHENTICATION

          This is one of the Securities of the series designated therein
referred to in the within-mentioned Indenture.

                                      BANK OF MONTREAL TRUST COMPANY, as Trustee



                                      By:         SPECIMEN                     
                                         ---------------------------------------
                                           Authorized Signature





<PAGE>   3
                              REVERSE OF SECURITY

                           WEATHERFORD ENTERRA, INC.

                         7 1/4% NOTES DUE MAY 15, 2006

         This Security is one of a duly authorized issue of debt securities of
the Issuer (the "Securities") of the series hereinafter specified, all issued
or to be issued under and pursuant to the Indenture, to which Indenture
reference is hereby made for a description of the rights, limitations of
rights, obligations, duties and immunities thereunder of the Trustee, the
Issuer and the holders of the Securities. The Securities may be issued in one
or more series, which different series may be issued in various aggregate
principal amounts, may mature at different times, may bear interest (if any) at
different rates, may be subject to different sinking, purchase or analogous
funds (if any) and may otherwise vary as provided in the Indenture.  This
Security is one of a series designated as the 7 1/4% Notes due May 15, 2006 of
the Issuer, limited in aggregate principal amount to $200,000,000.

         The Indenture contains provisions for defeasance of (a) the entire
indebtedness of this Security and (b) certain restrictive covenants upon
compliance by the Issuer with certain conditions set forth therein.

         If an Event of Default with respect to Securities of any series then
Outstanding occurs and is continuing, then and in each and every such case,
unless the principal of all of the Securities of such series shall have already
become due and payable, either the Trustee or the Holders of not less than 25
percent in aggregate principal amount of the Securities of such series then
Outstanding, by notice in writing to the Issuer (and to the Trustee if given by
Holders), may declare the unpaid principal amount of all the Securities of such
series and the interest, if any, accrued thereon to be due and payable
immediately, and upon any such declaration the same shall become and shall be
immediately due and payable.  At any time after such a declaration of
acceleration with respect to Securities of any series has been made and before
a judgment or decree for payment of the money due has been obtained by the
Trustee as provided in the Indenture, the Holders of a majority in principal
amount of the Outstanding Securities of that series, by written notice to the
Issuer and the Trustee, may rescind and annul such declaration and its
consequences if (a) the Issuer has paid or deposited with the Trustee a sum
sufficient to pay (i) all overdue interest on, and any additional amounts
payable as set forth in the Indenture on, all Securities of that series and any
coupons appertaining thereto, (ii) the principal of (and premium, if any, on)
any Securities of that series which have become due otherwise than by such
declaration of acceleration and any interest thereon at the rate or rates
prescribed therefor in such Securities, (iii) to the extent that payment of
such interest is lawful, interest upon overdue interest, and any additional
amounts payable under the Indenture, at the rate or rates prescribed therefor
in such Securities, and (iv) all sums paid or advanced by the Trustee under the
Indenture and the reasonable compensation, expenses, disbursements and advances
of the Trustee, its agents and counsel; and (b) all Events of Default with
respect to Securities of that series, other than the non-payment of the
principal of Securities of that series which have become due solely by such
declaration of acceleration, have been cured or waived as provided in the
Indenture.  No such recision shall affect any subsequent default or impair any
right consequent thereon.

         The Indenture contains provisions permitting the Issuer and the
Trustee, with the consent of the Holders of not less than a majority in
aggregate principal amount of the Securities at the time Outstanding of any
series affected, evidenced as provided in the Indenture, to execute
supplemental indentures adding any provisions to or changing in any manner or
eliminating any of the provisions of the Indenture or of any supplemental
indenture or modifying in any manner the rights of the Holders of the
Securities of each such series, provided, however, that, without the consent of
the Holder of each Outstanding Security affected thereby, no such supplemental
indenture shall (a) change the Stated Maturity of the principal of, or any
installment of principal of or interest on, any Security, or reduce the
principal amount thereof or the rate of interest thereon or any premium payable
upon the redemption thereof, or change the Redemption Date thereof, or change
any obligation of the Issuer to pay additional amounts pursuant to the
Indenture, or reduce the amount of the principal of an Original Issue Discount
Security that would be due and payable upon a declaration of acceleration of
the Maturity thereof pursuant to the Indenture, or change the coin or currency
in which any Security or any premium or interest thereon is payable, or change
the right of redemption, purchase or repayment by the Issuer at the option of
the Holder, or impair the right to institute suit for the enforcement of any
such payment on or after the Stated Maturity thereof (or, in the case of
redemption, on or after the Redemption Date), or (b) reduce the percentage in
principal amount of the Outstanding Securities of any series, the consent of
whose Holders is required for any such supplemental indenture, or the consent
of whose Holders is required for any waiver (of compliance with certain
provisions of the Indenture or certain defaults thereunder and their
consequences) provided for in the Indenture, or reduce the requirements of the
Indenture for quorum or voting, or (c) change any obligation of the Issuer to
maintain an office or agency in the places and for the purposes specified in
the Indenture, or (d) modify any of the provisions of certain sections of the
Indenture except to increase any such percentage or to provide that certain
other provisions of the Indenture cannot be modified or waived without the
consent of the Holder of each Outstanding Security affected thereby; provided,
however, that this clause shall not be deemed to require the consent of any
Holder of a Security or coupon with respect to changes in the references to
"the Trustee" and concomitant changes in certain sections of the Indenture or
the deletion of this provision, in accordance with the Indenture.  Without the
consent of any Holder, the Issuer and the Trustee may amend or supplement the
Indenture to (a) evidence the succession of another Person to the Issuer and
the assumption by any such successor of the covenants of the Issuer in the
Indenture and in the Securities pursuant to the Indenture, or (b) add to the
covenants of the Issuer for the benefit of the





<PAGE>   4
Holders of all or any series of Securities and any coupons appertaining thereto
(and if such covenants are to be for the benefit of less than all series of
Securities, stating that such covenants are expressly being included solely for
the benefit of such series), to convey, transfer, assign, mortgage or pledge
any property to or with the Trustee or otherwise secure any series of the
Securities or to surrender any right or power conferred in the Indenture upon
the Issuer, or (c) add any additional Events of Default with respect to all or
any series of the Securities (and, if such Event of Default is applicable to
less than all series of Securities, specifying the series to which such Event
of Default is applicable), or (d) add to or change any of the provisions of the
Indenture to provide that Bearer Securities may be registrable as to principal,
change or eliminate any restrictions on the payment of principal of or any
premium or interest on Bearer Securities, permit Bearer Securities to be issued
in exchange for Bearer Securities of other authorized denominations or permit
or facilitate the issuance of Securities in uncertificated form, provided that
any such action shall not adversely affect the interests of the Holders of
Securities of any series or any related coupons in any material respect, or (e)
add to, change or eliminate any of the provisions of the Indenture in respect
of one or more series of Securities; provided that if any such addition, change
or elimination shall adversely affect the interest of Holders of Securities of
any series or any coupons appertaining thereto in any material respect, such
change or elimination shall become effective only when there is no Security of
such series Outstanding, or (f) secure the Securities pursuant to the
requirements of the Indenture or otherwise, or (g) establish the form or terms
of Securities of any series and any related coupons as permitted by the
Indenture, or (h) evidence and provide for the acceptance of appointment under
the Indenture by a successor Trustee with respect to the Securities of one or
more series and to add to or change any of the provisions of the Indenture as
shall be necessary to provide for or facilitate the administration of the
trusts thereunder by more than one Trustee, pursuant to the requirements of the
Indenture, or (i) cure any ambiguity, correct or supplement any provision of
the Indenture or in any supplemental indenture which may be defective or
inconsistent with any other provision of the Indenture or in any supplemental
indenture, or make any other provisions with respect to matters or questions
arising under the Indenture; provided, that such action shall not adversely
affect the interests of the Holders of Securities of any series or any related
coupons in any material respect.  It is also provided in the Indenture that the
Holders of not less than a majority in aggregate principal amount of the
Outstanding Securities of any series may on behalf of the Holders of all the
Securities of such series waive any past default under the Indenture and its
consequences, except a default (a) in the payment of the principal of or any
premium or interest on any Security of such series or (b) in respect of a
covenant or provision of the Indenture which under the Indenture cannot be
modified or amended without the consent of the Holder of each Outstanding
Security of such series affected.  Upon any such waiver, such default shall
cease to exist, and any Event of Default arising therefrom shall be deemed to
have been cured, for every purpose of the Indenture; but no such waiver shall
extend to any subsequent or other default or impair any right consequent
thereon.  Any such consent or waiver by the Holder of this Security shall be
conclusive and binding upon such Holder and upon all future Holders and owners
of this Security and any Securities which may be issued in exchange or
substitution herefor, irrespective of whether or not any notation thereof is
made upon this Security or such other Securities.

         No reference herein to the Indenture and no provision of this Security
or of the Indenture shall alter or impair the obligation of the Issuer, which
is absolute and unconditional, to pay the principal of and interest on this
Security in the manner, at the respective times, at the rate and in the coin or
currency herein prescribed.

         This Security may be surrendered for registration of transfer or for
exchange, and notices and demands to or upon the Issuer in respect of this
Security and the Indenture may be served, at the office of the Security
Registrar, which at the date of the Indenture is located at the office or
agency of the Issuer maintained for that purpose in Houston, Texas.

         The Issuer, the Trustee and any agent of the Issuer or the Trustee may
deem and treat the registered Holder hereof as the absolute owner of this
Security (whether or not this Security shall be overdue and notwithstanding any
notation of ownership or other writing hereon), for the purpose of receiving
payment of, or on account of, the principal hereof and subject to the
provisions on the face hereof, interest hereon, and for all other purposes, and
neither the Issuer nor the Trustee nor any agent of the Issuer or the Trustee
shall be affected by any notice to the contrary.

         No recourse under or upon any obligation, covenant or agreement
contained in the Indenture or in any Security, or because of any indebtedness
evidenced thereby, shall be had against any incorporator, past, present or
future stockholder, officer or director, as such of the Issuer or of any
successor, either directly or through the Issuer or of any successor, either
directly or through the Issuer or any successor, under any rule of law, statute
or constitutional provision or by the enforcement of any assessment or by any
legal or equitable proceeding or otherwise, all such liability being expressly
waived and released by the acceptance of the Security by the Holder and as part
of the consideration for the issue of the Security.

         Interest shall be calculated on the basis of a 360-day year consisting
of 12 months of 30 days each.

         This Security shall be construed in accordance with and governed by
the laws of the State of New York.

         Capitalized terms used herein and not otherwise defined herein shall
the meanings assigned to such terms in the Indenture.


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