UNION TEXAS PETROLEUM HOLDINGS INC
8-K, 1995-03-16
CRUDE PETROLEUM & NATURAL GAS
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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 (Date of earliest event reported): March 16, 1995


                     UNION TEXAS PETROLEUM HOLDINGS, INC.
            (Exact name of registrant as specified in its charter)


    Delaware                  1-9019                    76-0040040    
(State or other             (Commission              (I.R.S. Employer 
 jurisdiction               File Number)            Identification No.)    
of incorporation) 


                1330 Post Oak Boulevard, Houston, Texas  77056
             (Address of principal executive offices)  (Zip Code)


Registrant's telephone number, including area code (713) 623-6544

<PAGE>   2
Item 5.     Other Events.             
            ------------

        Union Texas Petroleum Holdings, Inc. filed with the Securities and
Exchange Commission ("Commission") on March 15, 1994 a Registration Statement
(33-52683), which became effective on May 27, 1994, for $200,000,000 aggregate 
principal amount of debt securities registered for offering under the 
Securities Act of 1933 on a continuous or delayed basis pursuant to the 
provisions of Rule 415. A form of underwriting agreement and calculation of
ratio of earnings to fixed charges are filed as exhibits herewith and
incorporated by reference hereto and to such Registration Statement.


        The information set forth in the press release of the Registrant dated
March 16, 1995, regarding the acquisition of a 15% working interest in five and
a half blocks in the Porcupine Basin situated offshore Ireland, is incorporated
herein by reference.



Item 7.     Financial Statements and Exhibits.
            ---------------------------------    

            (c) Exhibits:  

Exhibit 
Number               Description 
- ------               -----------  
 1.1          Form of Underwriting Agreement.

12.1          Calculation of Ratio of Earnings to Fixed Charges.

99.1          Press release dated March 16, 1995.



<PAGE>   3

                                  Signature

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


                                   UNION TEXAS PETROLEUM
                                     HOLDINGS, INC.      


                                   By:  /s/ NEWTON W. WILSON, III 
                                       --------------------------
                                            NEWTON W. WILSON, III
                                               General Counsel, 
                                        Vice President-Administration 
                                                and Secretary  

Date:   March 16, 1995

<PAGE>   4
                              INDEX TO EXHIBITS


Exhibit 
Number               Description 
- ------               -----------  
 1.1          Form of Underwriting Agreement.

12.1          Calculation of Ratio of Earnings to Fixed Charges.

99.1          Press release dated March 16, 1995.




<PAGE>   1



                     UNION TEXAS PETROLEUM HOLDINGS, INC.
                                      
                              [DEBT SECURITIES]

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

                            Underwriting Agreement


                                                                          [DATE]

[UNDERWRITER]

Dear Sirs:

        Union Texas Petroleum Holdings, Inc., a Delaware corporation (the
"Company"), proposes, subject to the terms and conditions stated herein, to     
issue and sell to [Underwriters] (the "Underwriters") an aggregate of 
$100,000,000 principal amount of the [Debt Securities] of the Company (the
"Notes").  The Company's obligations to pay principal, premium, if any, and
interest with respect to the Notes will be unconditionally guaranteed (the
"Guarantees") on a joint and several basis by each of the following
subsidiaries of the Company (collectively, the "Guarantors"): (i) Union Texas
East Kalimantan Limited, a Bahamian corporation ("UTEK"); (ii) Union Texas
Petroleum Energy Corporation, a Delaware corporation; (iii) Union Texas
International Corporation, a Delaware corporation; (iv) Union Texas Products
Corporation, a Delaware corporation; and (v) Unistar, Inc., a Delaware
corporation.

        1.  The Company represents and warrants to, and agrees with, each of
the Underwriters that:

                (a)   A registration statement in respect of the Notes and the
        Guarantees has been filed with the Securities and Exchange Commission
        (the "Commission"); such registration statement and any post-effective
        amendment thereto, each in the form heretofore delivered to you, have
        been declared effective by the Commission in such form; no other
        document with respect to such registration statement or document
        incorporated by reference therein has heretofore been filed with the
        Commission; and no stop order suspending the effectiveness of such
        registration statement has been issued and no proceeding for that
        purpose has been initiated or threatened by the Commission (any
        preliminary prospectus included in such registration statement or filed
        with the Commission pursuant to Rule 424(a) of the rules and
        regulations of the Commission under the Securities Act of 1933, as
        amended (the "Act"), being hereinafter called a "Preliminary
        Prospectus"; the various parts of such registration statement,
        including all exhibits thereto (other than the Statement of Eligibility
        and Qualification on Form T-1 of the Trustee (as defined below)) and
        including

<PAGE>   2
                                                                              2

        the documents incorporated by reference in the prospectus contained in
        the registration statement at the time such part of the registration
        statement became effective, each as amended at the time such part of
        the registration statement became effective, being hereinafter called
        the "Registration Statement"; such final prospectus, in the form first
        filed pursuant to Rule 424(b) under the Act, being hereinafter called
        the "Prospectus"; any reference herein to any Preliminary Prospectus or
        the Prospectus being deemed to refer to and include the documents
        incorporated by reference therein pursuant to Item 12 of Form S-3 under
        the Act, as of the date of such Preliminary Prospectus or Prospectus,
        as the case may be; any reference to any amendment or supplement to any
        Preliminary Prospectus or the Prospectus being deemed to refer to and
        include any documents filed after the date of such Preliminary
        Prospectus or Prospectus, as the case may be, under the Securities
        Exchange Act of 1934, as amended (the "Exchange Act"), and incorporated
        by reference in such Preliminary Prospectus or Prospectus, as the case
        may be; and any reference to any amendment to the Registration
        Statement being deemed to refer to and include any annual report of the
        Company filed pursuant to Section 13(a) or 15(d) of the Exchange Act
        after the effective date of the Registration Statement that is
        incorporated by reference in the Registration Statement);

                (b)   No order preventing or suspending the use of any
        Preliminary Prospectus has been issued by the Commission, and each
        Preliminary Prospectus, at the time of filing thereof, conformed in all
        material respects to the requirements of the Act and the Trust
        Indenture Act of 1939, as amended (the "Trust Indenture Act"), and the
        published rules and regulations of the Commission thereunder, and did
        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, in the light of the circumstances under which they
        were made, not misleading; provided, however, that this representation
        and warranty shall not apply to any statements or omissions made in
        reliance upon and in conformity with information furnished in writing
        to the Company by you expressly for use therein;

                (c)   The documents incorporated by reference in the
        Prospectus, when they became effective or were filed with the
        Commission, as the case may be, conformed in all material respects to
        the requirements of the Act or the Exchange Act, as applicable, and the
        published rules and regulations of the Commission thereunder, and none
        of such documents 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; and any
        further documents so filed and incorporated by reference in the
        Prospectus or any further amendment or supplement thereto, when such
        documents become effective or are filed with the Commission, as the
        case may be, will conform in all material respects to the requirements
        of the Act or the Exchange Act, as applicable, and the rules and
        regulations of the Commission thereunder 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;

                (d)   The Registration Statement conforms, and the Prospectus
        and any further amendments or supplements to the Registration Statement
        or the Prospectus will conform, in all material respects to the
        requirements of the Act and the Trust Indenture Act and the published
        rules and regulations of the Commission thereunder and do not and will
        not, as of the applicable effective date as to the Registration
        Statement and any amendment thereto and as of the applicable filing
        date as to the Prospectus and any amendment or supplement thereto,
        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; provided, however, that this
        representation and warranty shall not apply to any statements or
        omissions made in reliance upon and in conformity with information
        furnished in writing to the Company by you expressly for use therein;

                (e)   None of the Company or any of its subsidiaries or, to the
        best of the Company's knowledge, Unimar Company, a Texas general
        partnership ("Unimar"), has sustained since the 


<PAGE>   3

                                                                              3

        date of the latest audited financial statements included or
        incorporated by reference in the Prospectus any loss or interference
        with its business from fire, explosion, flood or other calamity,
        whether or not covered by insurance, or from any labor dispute or court
        or governmental action, order or decree, otherwise than as set forth or
        contemplated in the Prospectus, which loss or interference is material
        to the Company and its subsidiaries taken as a whole; and, since the
        respective dates as of which information is given in the Registration
        Statement and the Prospectus, there has not been any change in the
        capital stock (other than (i) any shares of capital stock of the
        Company sold upon exercise of a subscription, option or warrant or the
        conversion of a security outstanding on the date of this Agreement,
        (ii) any shares of such capital stock, or other securities convertible
        or exercisable or exchangeable for such shares, in either case issued
        pursuant to any employee stock option or benefit plan of the Company
        existing on the date of this Agreement and (iii) any stock repurchases
        pursuant to the Company's publicly announced stock repurchase program)
        or any increase of more than $25,000,000 in the consolidated short-term
        or long-term debt of the Company or any material adverse change, or any
        development involving a prospective material adverse change, in or
        affecting the general affairs, management, financial position,
        stockholders' equity or results of operations of the Company and its
        subsidiaries taken as a whole, otherwise than as set forth or
        contemplated in the Prospectus;

                (f)   The Company has been duly incorporated and is validly
        existing as a corporation in good standing under the laws of the State
        of Delaware, with power and authority (corporate and other) to own its
        properties and conduct its business as described in the Prospectus, and
        has been duly qualified as a foreign corporation for the transaction of
        business and is in good standing under the laws of each other
        jurisdiction in which it owns or leases properties, or conducts any
        business, so as to require such qualification, or is subject to no
        material liability or disability by reason of the failure to be so
        qualified in any such jurisdiction; each subsidiary of the Company
        identified in Annex II hereto (collectively, the "Material
        Subsidiaries") has been duly incorporated and is validly existing as a
        corporation in good standing under the laws of its jurisdiction of
        incorporation; Unimar has been duly formed and is validly existing as a
        partnership under the laws of the State of Texas; and the Company does
        not have any subsidiary that is a "significant subsidiary" (within the
        meaning of the published rules and regulations of the Commission under
        the Act) that is not identified in Annex II hereto;

                (g)   The Company has an authorized capitalization as set forth
         in the Prospectus, and all of the issued shares of capital stock of
         the Company have been duly and validly authorized and issued, are
         fully paid and non-assessable and conform to the description thereof
         contained in the Prospectus; and all of the issued shares of capital
         stock of each Material Subsidiary of the Company have been duly and
         validly authorized and issued and are fully paid and non-assessable,
         and all of such shares of capital stock and 50% of the equity
         interests in Unimar (except for directors' qualifying shares and
         shares held by third parties solely to satisfy local law requirements
         and except as set forth in the Prospectus) are owned directly or
         indirectly by the Company, free and clear of all liens, encumbrances, 
         equities or claims;

                (h)   The Notes have been duly authorized by the Company and,
        when issued and delivered pursuant to this Agreement, will have been
        duly executed, authenticated, issued and delivered by the Company and
        will constitute valid and legally binding obligations of the Company
        entitled to the benefits provided by the indenture dated as of
        [__________], 1995 (the "Indenture") among the Company, the Guarantors
        and The First National Bank of Chicago, as Trustee (the "Trustee"),
        under which they are to be issued, which will be substantially in the
        form filed as an exhibit to the Registration Statement; the Guarantees
        have been duly authorized by each of the Guarantors and, upon the due
        authentication, execution, issuance and delivery of the Notes, will
        have been duly executed, issued and delivered by each Guarantor and
        will constitute valid and legally binding obligations of each Guarantor
        entitled to the benefits provided by the Indenture; the Indenture has
        been duly authorized by the Company and each Guarantor and duly
        qualified under the Trust Indenture Act and, when executed and
        delivered by the Company, each Guarantor and the Trustee, will
        constitute a valid and legally binding instrument of the Company and
        each Guarantor, enforceable against the Company and each Guarantor in
        accordance with its terms, subject, as to enforcement, to bankruptcy,
        insolvency, reorganization and other laws of 
<PAGE>   4
                                                                               4

        general applicability relating to or affecting creditors' rights and to
        general equity principles; and the Notes, the Guarantees and the 
        Indenture will conform to the descriptions thereof in the Prospectus;

                (i)  The issue and sale of the Notes, the issue of the
        Guarantees and the compliance by the Company and the Guarantors with
        all of the provisions of the Notes, the Guarantees, the Indenture and
        this Agreement and the consummation of the transactions herein and
        therein contemplated will not conflict with or result in a breach or
        violation of any of the terms or provisions of, or constitute a default
        under, any indenture, mortgage, deed of trust, loan agreement or other
        agreement or instrument to which the Company or any of its subsidiaries
        or, to the best of the Company's knowledge, Unimar is a party or by
        which the Company or any of its subsidiaries or Unimar is bound or to
        which any of the property or assets of the Company or any of its
        subsidiaries or Unimar is subject, or any statute or any order, rule or
        regulation of any court or governmental agency or body having
        jurisdiction over the Company, any of its subsidiaries or Unimar or any
        of their properties (excluding conflicts, breaches, violations and
        defaults that, individually or in the aggregate, will not have any
        material adverse effect on the general affairs, management, financial
        position, stockholders' equity, results of operations or prospects of
        the Company and its subsidiaries taken as a whole), nor will any such
        action result in any violation of the provisions of the Restated
        Certificate of Incorporation or By-laws of the Company or the charter
        or by-laws of any Guarantor; and no consent, approval, authorization,
        order, registration or qualification of or with any such court or
        governmental agency or body is required for the consummation by the
        Company and the Guarantors of the transactions contemplated by this
        Agreement or the Indenture, except the registration under the Act of
        the Notes and the Guarantees, the qualification under the Trust
        Indenture Act of the Indenture and such consents, approvals,
        authorizations, registrations or qualifications as may be required
        under state securities or Blue Sky laws in connection with the purchase
        and distribution of the Notes and the Guarantees by the Underwriters;

                (j)   Other than as set forth in the Prospectus, there are no
        legal or governmental proceedings pending to which the Company or any
        of its subsidiaries or, to the best of the Company's knowledge, Unimar
        is a party or of which any property of the Company or any of its
        subsidiaries or Unimar is the subject which, if determined adversely to
        the Company or any of its subsidiaries or Unimar, would individually or
        in the aggregate have a material adverse effect on the consolidated
        financial position, stockholders' equity or results of operations of
        the Company and its subsidiaries taken as a whole; and, to the best of
        the Company's knowledge, no such proceedings are threatened or
        contemplated by governmental authorities or threatened by others;

                (k)   Price Waterhouse, who have certified certain financial
        statements of the Company and its subsidiaries, are independent public
        accountants as required by the Act and the rules and regulations of the
        Commission thereunder; and

                (l)   Neither the Company nor any of the Guarantors is an
        "investment company" within the meaning of the Investment Company Act
        of 1940, as amended (the "Investment Company Act"), and the published
        rules and regulations of the Commission thereunder, and the offer and
        sale of the Notes and the Guarantees will not subject the Company or
        any of the Guarantors to registration under, or result in a violation
        of, the Investment Company Act.

        2.  Subject to the terms and conditions herein set forth, the Company
agrees to issue and sell to each of the Underwriters, and each of the
Underwriters agrees, severally and not jointly, to purchase from the Company,
at a purchase price of [   ]% of the principal amount thereof, plus accrued
interest from [__________], 1995 to the Time of Delivery (as defined in Section
4 hereof), the principal amount of the Notes set forth opposite the name of
such Underwriter in Schedule 1 hereto.

        3.  Upon the authorization by you of the release of the Notes, the
several Underwriters propose to offer the Notes for sale upon the terms and
conditions set forth in the Prospectus.

<PAGE>   5
                                                                               5

        4.  The Notes to be purchased by each Underwriter hereunder, in
definitive form and in such denominations and registered in such names as
Goldman, Sachs & Co., on behalf of the Underwriters, may request upon at least
forty-eight hours' prior notice to the Company, shall be delivered by or on
behalf of the Company to you against payment by you by certified or official
bank check or checks, payable to the order of the Company, in New York Clearing
House funds, all at the office of Goldman, Sachs & Co., 85 Broad Street, New
York, New York.  The time and date of such delivery and payment shall be 9:30
a.m., New York time, on [__________], 1995 or such other time and date as you
and the Company may agree upon in writing, such time and date being herein
called the "Time of Delivery."  Such certificates will be made available for
checking and packaging at least twenty-four hours prior to the Time of Delivery
at such office of Goldman, Sachs & Co.

        5.  The Company agrees with each of the Underwriters:

                (a)  To prepare the Prospectus in a form approved by you and to
        file such Prospectus pursuant to Rule 424(b) under the Act not later
        than the Commission's close of business on the second business day
        following the execution and delivery of this Agreement; to make no
        further amendment or any supplement to the Registration Statement or
        Prospectus which shall be reasonably disapproved by you promptly after
        reasonable notice thereof; to advise you, promptly after it receives
        notice thereof, of the time when any supplement to the Prospectus or
        any amended Prospectus has been filed and to furnish you copies
        thereof; to file promptly all reports and any definitive proxy or
        information statements required to be filed by the Company with the
        Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the
        Exchange Act subsequent to the date of the Prospectus and for so long
        as the delivery of a prospectus is required in connection with the
        offering or sale of the Notes; to advise you, promptly after it
        receives notice thereof, of the issuance by the Commission of any stop
        order or of any order preventing or suspending the use of any
        Preliminary Prospectus or prospectus, of the suspension of the
        qualification of the Notes or the Guarantees for offering or sale in
        any jurisdiction, of the initiation or threatening of any proceeding
        for any such purpose, or of any request by the Commission for the
        amending or supplementing of the Registration Statement or Prospectus
        or for additional information; and, in the event of the issuance of any
        stop order or of any order preventing or suspending the use of any
        Preliminary Prospectus or prospectus or suspending any such
        qualification, to use promptly its best efforts to obtain its
        withdrawal;

                (b)  Promptly from time to time to take such action as you may
        reasonably request to qualify the Notes and the Guarantees for offering
        and sale under the securities laws of such jurisdictions as you may
        request and to comply with such laws so as to permit the continuance of
        sales and dealings therein in such jurisdictions for as long as may be
        necessary to complete the distribution of the Notes, provided that in
        connection therewith the Company shall not be required to qualify as a
        foreign corporation or to file a general consent to service of process
        in any jurisdiction;

                (c)  To furnish you with copies of the Prospectus in such
        quantities as you may from time to time reasonably request, and, if the
        delivery of a prospectus is required at any time prior to the
        expiration of nine months after the time of issue of the Prospectus in
        connection with the offering or sale of the Notes and if at such time
        any event shall have occurred as a result of which the Prospectus as
        then amended or supplemented would include an untrue statement of a
        material fact or omit to state any material fact necessary in order to
        make the statements therein, in the light of the circumstances under
        which they were made when such Prospectus is delivered, not misleading,
        or, if for any other reason it shall be necessary during such same
        period to amend or supplement the Prospectus or to file under the
        Exchange Act any document incorporated by reference in the Prospectus
        in order to comply with the Act, the Exchange Act or the Trust
        Indenture Act, to notify you and upon your request to file such
        document and to prepare and furnish without charge to you and to any
        dealer in securities as many copies as you may from time to time
        reasonably request of an amended Prospectus or a supplement to the
        Prospectus which will correct such statement or omission or effect such
        compliance, and in case you are required to

<PAGE>   6
                                                                               6

        deliver a prospectus in connection with sales of any of the Notes at
        any time nine months or more after the time of issue of the Prospectus,
        upon your request but at your expense, to prepare and deliver to you as
        many copies as you may request of an amended or supplemented Prospectus
        complying with Section 10(a)(3) of the Act;

                (d)  To make generally available to its securityholders as soon
        as practicable, but in any event not later than eighteen months after
        the effective date of the Registration Statement (as defined in Rule
        158(c) under the Act), an earnings statement of the Company and its
        subsidiaries (which need not be audited) complying with Section 11(a)
        of the Act and the rules and regulations of the Commission thereunder
        (including at the option of the Company Rule 158);

                (e)  During the period beginning from the date hereof and
        continuing to and including the earlier of (i) the termination of
        trading restrictions on the Notes as notified to the Company by you,
        and (ii) the Time of Delivery, not to offer, sell, contract to sell or
        otherwise dispose of debt securities of the Company which mature more
        than one year after the Time of Delivery and which are substantially
        similar to the Notes, except (x) with your prior written consent, (y)
        as described in the Prospectus or (z) pursuant to borrowings under the
        Company's credit facilities or lines of credit established by the 
        Company prior to the date hereof;

                (f)  To furnish to the holders of the Notes as soon as
        practicable after the end of each fiscal year an annual report
        (including a balance sheet and statements of income, stockholders'
        equity and cash flows of the Company and its consolidated subsidiaries
        certified by independent public accountants) and, as soon as
        practicable after the end of each of the first three quarters of each
        fiscal year (beginning with the fiscal quarter ending after the
        effective date of the Registration Statement), consolidated summary
        financial information of the Company and its subsidiaries for such
        quarter in reasonable detail; and

                (g)  During a period of three years from the effective date of
        the Registration Statement, to furnish to you copies of all reports or
        other communications (financial or other) furnished to stockholders,
        and deliver to you (i) as soon as they are available, copies of any
        reports and financial statements furnished to or filed with the
        Commission or any national securities exchange on which any class of
        securities of the Company is listed; and (ii) such additional
        information concerning the business and financial condition of the
        Company as you may from time to time reasonably request (such financial
        statements to be on a consolidated basis to the extent the accounts of
        the Company and its subsidiaries are consolidated in reports furnished
        to its stockholders generally or to the Commission).

        6.  The Company covenants and agrees with you that it will pay or cause
to be paid the following:  (i) the fees, disbursements and expenses of the
Company's counsel and accountants in connection with the registration of the
Notes and the Guarantees under the Act and all other expenses in connection
with the preparation, printing and filing of the Registration Statement, any
Preliminary Prospectus and the Prospectus and amendments and supplements
thereto and the mailing and delivering of copies thereof to you and to dealers;
(ii) the cost of printing or producing this Agreement, the Indenture, the Blue
Sky Memorandum and any other documents in connection with the offering,
purchase, sale and delivery of the Notes and the Guarantees; (iii) all expenses
in connection with the qualification of the Notes and the Guarantees for
offering and sale under state securities laws as provided in Section 5(b)
hereof, including the fees and disbursements of counsel for the Underwriters in
connection with such qualification and in connection with the Blue Sky survey;
(iv) any fees charged by securities rating services for rating the Notes; (v)
the filing fees incident to securing any required review by the National
Association of Securities Dealers, Inc. of the terms of the sale of the Notes;
(vi) the costs of preparing and delivering the Notes and the Guarantees to the
Underwriters, including any capital, stamp or other tax or duty payable upon
the issuance of the Notes or the Guarantees; (vii) the fees and expenses of the
Trustee and any agent of the Trustee and the fees and disbursements of counsel
for the Trustee in connection with the Indenture and the Notes; (viii) all
expenses and listing fees in connection with the listing of the Notes on the
New York Stock Exchange; and (ix) all other costs and expenses incident to the
performance of its obligations hereunder
<PAGE>   7
                                                                               7

which are not otherwise specifically provided for in this Section.  It is
understood, however, that except as provided in this Section, Section 8 and
Section 11 hereof, you will pay all of your own costs and expenses, including
the fees of your counsel, transfer taxes on resale of any of the Notes by you,
and any advertising expenses connected with any offers you may make.

        7.  The obligations of the Underwriters hereunder shall be subject, in
their discretion, to the condition that all representations and warranties and
other statements of the Company herein are, at and as of the Time of Delivery,
true and correct, the condition that the Company shall have performed all of
its obligations hereunder theretofore to be performed, and the following
additional conditions:

                 (a)  The Prospectus shall have been filed with the Commission
        pursuant to Rule 424(b) within the applicable time period prescribed
        for such filing by the rules and regulations under the Act and in
        accordance with Section 5(a) hereof; no stop order suspending the
        effectiveness of the Registration Statement or any part thereof shall
        have been issued and no proceeding for that purpose shall have been
        initiated or threatened by the Commission; and all requests for
        additional information on the part of the Commission shall have been
        complied with to your reasonable satisfaction;

                 (b)  Simpson Thacher & Bartlett, counsel for the Underwriters,
        shall have furnished to you such opinion or opinions, dated the Time of
        Delivery, with respect to the incorporation of the Company, this
        Agreement, the Indenture, the validity of the Notes and the Guarantees,
        the Registration Statement, the Prospectus, and other related matters
        as you may reasonably request, and such counsel shall have received
        such papers and information as they may reasonably request to enable
        them to pass upon such matters;

                 (c)  Andrews & Kurth L.L.P., counsel for the Company and the
        Guarantors, shall have furnished to you their written opinion, dated
        the Time of Delivery, in form and substance satisfactory to you, to the
        effect that:

                        (i)  Each of the Company and the Guarantors (other than
                 UTEK) has been duly incorporated and is validly existing as a
                 corporation in good standing under the laws of the State of
                 Delaware, with requisite corporate power and authority to own
                 its properties and conduct its business as described in the
                 Prospectus;

                        (ii)  The Company has an authorized capitalization as
                 set forth in the Prospectus, and all of the issued shares of
                 capital stock of the Company have been duly and validly
                 authorized and issued and are fully paid and non-assessable;

                        (iii)  The Company has been duly qualified as a foreign
                 corporation for the transaction of business and is in good
                 standing under the laws of each other jurisdiction in which it
                 owns or leases a material amount of properties, or conducts
                 any material business, so as to require such qualification, or
                 is subject to no material liability or disability by reason of
                 failure to be so qualified in any such jurisdiction (such
                 counsel being entitled to rely in respect of the opinion in
                 this clause upon opinions of local counsel and in respect of
                 matters of fact upon certificates of public officials or
                 officers of the Company, provided that such counsel shall
                 state that they believe that both you and they are justified
                 in relying upon such opinions and certificates);

                        (iv)  Each Material Subsidiary has been duly
                 incorporated and is validly existing as a corporation in good
                 standing under the laws of its jurisdiction of incorporation;
                 to the best of such counsel's knowledge after reasonable
                 investigation, Unimar has been duly formed and is validly
                 existing as a partnership under the laws of the State of
                 Texas; and all of the issued shares of capital stock of each
                 Material Subsidiary have been duly and validly authorized and
                 issued and are fully paid and non-assessable, and (except for
                 directors' qualifying shares and shares held by third parties
                 solely to satisfy local law requirements and except as
                 otherwise set forth in the Prospectus), to the best of such
<PAGE>   8
                                                                               8

                 counsel's knowledge after reasonable investigation and except
                 as set forth in a schedule to such counsel's opinion, all of
                 such shares of capital stock and 50% of the equity interests
                 in Unimar are owned directly or indirectly by the Company,
                 free and clear of all liens, encumbrances, equities or claims
                 within the meaning of the Uniform Commercial Code (such
                 counsel being entitled to (A) state that the opinion in this
                 clause relating to the ownership of capital stock and equity
                 interests is based solely on a review of the corporate records
                 of the Company and its subsidiaries and the records of Unimar,
                 the certificate or certificates representing such shares of
                 capital stock and evidence of such equity interests in Unimar
                 and a certificate or certificates in respect of matters of
                 fact as to ownership of and liens, encumbrances, equities or
                 claims on such shares of capital stock and equity interests,
                 provided that such counsel shall state that he believes that
                 both you and he are justified in relying upon such certificate
                 or certificates and (B) rely in respect of the opinion in this
                 clause upon opinions of local counsel furnished to you at the
                 Time of Delivery and in respect of matters of fact upon
                 certificates of public officials or officers of the Company or
                 its subsidiaries furnished to you at the Time of Delivery, 
                 provided that such counsel shall state that they believe that 
                 both you and they are justified in relying upon such opinions 
                 and certificates);

                        (v)  To the best of such counsel's knowledge after
                 reasonable investigation, other than as set forth in the
                 Prospectus, there is no pending or threatened action, suit or
                 proceeding before any court or any governmental agency or body
                 or any arbitrator involving the Company, any Material
                 Subsidiary or Unimar required to be disclosed in the
                 Registration Statement that is not adequately disclosed
                 therein;

                        (vi)  This Agreement has been duly authorized, executed
                 and delivered by the Company;

                        (vii)  The Notes have been duly authorized, executed,
                 issued and delivered by the Company and, assuming the due
                 authentication thereof by the Trustee, constitute valid and
                 legally binding obligations of the Company entitled to the
                 benefits provided by the Indenture; the Guarantees have been
                 duly authorized, executed, issued and delivered by each
                 Guarantor and constitute valid and legally binding obligations
                 of each Guarantor entitled to the benefits provided by the
                 Indenture; and the Notes, the Guarantees and the Indenture
                 conform to the descriptions thereof in the Prospectus;

                        (viii)  The Indenture has been duly authorized,
                 executed and delivered by the Company and each Guarantor and,
                 assuming the due authorization, execution and delivery thereof
                 by the Trustee, constitutes a valid and legally binding
                 instrument of the Company and each Guarantor, enforceable
                 against the Company and each Guarantor in accordance with its
                 terms, subject to the effects of bankruptcy, insolvency,
                 fraudulent conveyance, reorganization, moratorium and other
                 similar laws relating to or affecting creditors' rights
                 generally, general equitable principles (whether considered in
                 a proceeding in equity or at law) and an implied covenant of
                 good faith and fair dealing; and the Indenture has been duly
                 qualified under the Trust Indenture Act;

                        (ix)  The issue and sale of the Notes, the issue of the
                 Guarantees and the compliance by the Company and the
                 Guarantors with all of the provisions of the Notes, the
                 Guarantees, the Indenture and this Agreement and the
                 consummation of the transactions herein and therein
                 contemplated will not result in any violation of the Restated
                 Certificate of Incorporation or By-laws of the Company or the
                 certificate of incorporation, restated certificate of
                 incorporation, articles of association or memorandum of
                 association, as applicable, or by-laws of any Guarantor (other
                 than UTEK) and, to the best of such counsel's knowledge after
                 reasonable investigation, such actions will not result in a
                 breach or violation of any of the terms or provisions of, or
                 constitute a default under, any indenture, mortgage, deed of
                 trust, loan agreement or other agreement or instrument to
                 which the Company or any of its Material Subsidiaries or, to
                 the best of the Company's knowledge, 
<PAGE>   9
                                                                               9

                 Unimar is a party or by which the Company or any of its
                 Material Subsidiaries or, to the best of such counsel's
                 knowledge, Unimar is bound or to which any of the property or
                 assets of the Company or any of its Material Subsidiaries or,
                 to the best of such counsel's knowledge, Unimar is subject, or
                 any statute or any order, rule or regulation known to such
                 counsel of any court or governmental agency or body having
                 jurisdiction over the Company, any of its Material
                 Subsidiaries or, to the best of such counsel's knowledge,
                 Unimar or any of their properties (excluding breaches,
                 violations and defaults that, individually or in the
                 aggregate, will not have any material adverse effect on the
                 general affairs, management, financial position, stockholders'
                 equity, results of operations or prospects of the Company and
                 its subsidiaries taken as a whole) (such counsel being
                 entitled to rely in respect of the opinion in this clause
                 relating to statutes, orders, rules or regulations upon
                 opinions of local counsel furnished to you at the Time of
                 Delivery,provided that such counsel shall state that they
                 believe that both you and they are justified in relying upon 
                 such opinions);

                        (x)  No consent, approval, authorization, order,
                 registration or qualification of or with any such court or
                 governmental agency or body having jurisdiction over the
                 Company is required for the consummation by the Company and
                 the Guarantors of the transactions contemplated by this
                 Agreement or the Indenture, except such as have been obtained
                 under the Act and the Trust Indenture Act, and such consents,
                 approvals, authorizations, registrations or qualifications as
                 may be required under state securities or Blue Sky laws in
                 connection with the purchase and distribution of the Notes and
                 the Guarantees by the Underwriters;

                        (xi)  The statements made in the Prospectus under the 
                 captions "Description of the Debt Securities" and
                 "__________", insofar as they purport to constitute summaries
                 of the legal matters and documents referred to therein, fairly
                 present the information called for with respect to such legal
                 matters and documents and fairly summarize such legal matters
                 and documents;

                        (xii)  Neither the Company nor any of the Guarantors is
                 an "investment company" within the meaning of the Investment
                 Company Act and the published rules and regulations of the
                 Commission thereunder, and no registration of the Company or
                 any of the Guarantors under the Investment Company Act is
                 required for, or will be required as a consequence of, the
                 issuance, offer and sale of the Notes and the Guarantees
                 pursuant to this Agreement;

                        (xiii)  The documents incorporated by reference in the
                 Prospectus or any further amendment or supplement thereto made
                 by the Company prior to the Time of Delivery (other than the
                 financial statements and related schedules and engineering and
                 statistical data therein, as to which such counsel need
                 express no opinion), when they became effective or were filed
                 with the Commission, as the case may be, complied as to form
                 in all material respects with the requirements of the Act or
                 the Exchange Act, as applicable, and the published rules and
                 regulations of the Commission thereunder; and

                        (xiv)  The Registration Statement and the Prospectus
                 and any further amendments and supplements thereto made by the
                 Company prior to the Time of Delivery (other than the
                 financial statements and related schedules and engineering and
                 statistical data therein, as to which such counsel need
                 express no opinion) comply as to form in all material respects
                 with the requirements of the Act and the Trust Indenture Act
                 and the published rules and regulations of the Commission
                 thereunder.

                 Such counsel shall state that, although they do not assume any
        responsibility for the accuracy, completeness or fairness of the
        statements contained in any of the documents referred to in subclause
        (xiii) of this Clause (c) or in the Registration Statement or the
        Prospectus (except as and to the extent described in subclause (xi) of
        this Clause (c)), they have no reason to believe that
<PAGE>   10
                                                                              10

        (i) any of the documents referred to in subclause (xiii) of this Clause
        (c) when such documents became effective or were so filed, as the case
        may be, 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, in the case of other
        documents which were filed under the Exchange Act with the Commission,
        an untrue statement of a material fact or omitted to state a material
        fact required to be stated therein or necessary in order to make the
        statements therein, in the light of the circumstances under which they
        were made when such documents were so filed, not misleading; or (ii) as
        of its effective date, the Registration Statement or any further
        amendment thereto made by the Company prior to the Time of Delivery
        (other than the financial statements and related schedules therein, as
        to which such counsel need express no opinion or belief) 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, as of its date, the Prospectus or any
        further amendment or supplement thereto made by the Company prior to
        the Time of Delivery (other than the financial statements and related
        schedules therein, as to which such counsel need express no opinion or
        belief) contained an untrue statement of a material fact or omitted to
        state a material fact necessary to make the statements therein, in the
        light of the circumstances under which they were made, not misleading
        or that, as of the Time of Delivery, either the Registration Statement
        or the Prospectus or any further amendment or supplement thereto made
        by the Company prior to the Time of Delivery (other than the financial
        statements and related schedules therein, as to which such counsel need
        express no opinion or belief) contains an untrue statement of a
        material fact or omits to state a material fact necessary to make the
        statements therein, in the light of the circumstances under which they
        were made, not misleading; and they do not know of any amendment to the
        Registration Statement required to be filed or of any contracts or
        other documents of a character required to be filed as an exhibit to
        the Registration Statement or required to be incorporated by reference
        into the Prospectus or required to be described in the Registration
        Statement or the Prospectus which are not filed or incorporated by 
        reference or described as required.

        In rendering the opinions referred to in subclauses (ii) (other than
        with respect to authorized capitalization), (iii), (iv), (v), (ix) and
        (x) of this Clause (c), such counsel may rely upon an opinion of Newton
        W. Wilson, III, Esq., General Counsel, Vice President-Administration
        and Secretary of the Company, provided that such counsel shall state
        that they believe that both you and they are justified in relying upon 
        such opinion.

                In rendering such opinion, such counsel may (A) state that
        their opinion is limited to matters governed by the Federal laws of the
        United States, the laws of the State of New York and the State of
        Texas, and the General Corporation Law of the State of Delaware and (B)
        rely (to the extent such counsel deem proper and specify in their
        opinion), as to matters involving the application of the laws of other
        jurisdictions, upon the opinions of local counsel referred to in
        subclauses (iii), (iv) and (ix) of this Clause (c).

                (d)   On the date of the execution hereof and also at the Time
        of Delivery, Price Waterhouse shall have furnished to you a letter or
        letters, dated the respective date of delivery thereof, in form and
        substance satisfactory to you, to the effect set forth in Annex I
        hereto;

                (e) (i) None of the Company or any of its subsidiaries or
        Unimar shall have sustained since the date of the latest audited
        financial statements included or incorporated by reference in the
        Prospectus any loss or interference with its business from fire,
        explosion, flood or other calamity, whether or not covered by
        insurance, or from any labor dispute or court or governmental action,
        order or decree, otherwise than as set forth or contemplated in the
        Prospectus, which loss or 

<PAGE>   11
                                                                              11

        interference is material to the Company and its subsidiaries taken as a
        whole, and (ii) since the respective dates as of which information is
        given in the Prospectus there shall not have been any change in the
        capital stock (other than (i) any shares of capital stock of the
        Company sold upon the exercise of a subscription, option or warrant or
        the conversion of a security outstanding on the date of this Agreement,
        (ii) any shares of such capital stock, or other securities convertible
        or exercisable or exchangeable for such shares, in either case issued
        pursuant to any employee stock option or benefit plan of the Company
        existing on the date of this Agreement and (iii) any stock repurchases
        pursuant to the Company's publicly announced stock repurchase program)
        or any increase of more than $25,000,000 in the consolidated short-term
        or long-term debt of the Company or any change, or any development
        involving a prospective change, in or affecting the general affairs,
        management, financial position, stockholders' equity or results of
        operations of the Company and its subsidiaries taken as a whole,
        otherwise than as set forth or contemplated in the Prospectus, the
        effect of which, in any such case described in Clause (i) or (ii), is
        in your judgment so material and adverse as to make it impracticable or
        inadvisable to proceed with the public offering or the delivery of the
        Notes being delivered at the Time of Delivery on the terms and in
        the manner contemplated in the Prospectus;

                (f)  On or after the date hereof (i) no downgrading shall have
        occurred in the rating accorded the Company's debt securities by any
        "nationally recognized statistical rating organization," as that term
        is defined by the Commission for purposes of Rule 436(g)(2) under the
        Act and (ii) no such organization shall have publicly announced that it
        has under surveillance or review, with possible negative implications,
        its rating of any of the Company's debt securities (other than
        Standard & Poor's corporation's "negative outlook" on its rating of the
        Company's debt securities, which outlook was publicly announced prior
        to the date hereof);

                (g)  On or after the date hereof there shall not have occurred
        any of the following:  (i) a suspension or material limitation in
        trading in securities generally on the New York Stock Exchange; (ii) a
        general moratorium on commercial banking activities in New York
        declared by either Federal or New York State authorities; or (iii) the
        outbreak or escalation of hostilities involving the United States or
        the declaration by the United States of a national emergency or war if
        the effect of any such event specified in this Clause (iii) in your
        judgment makes it impracticable or inadvisable to proceed with the
        public offering or the delivery of the Notes on the terms and in the
        manner contemplated in the Prospectus; and

                (h)  The Company shall have furnished or caused to be furnished
        to you at the Time of Delivery certificates of officers of the Company
        and the Guarantors satisfactory to you as to the accuracy of the
        representations and warranties of the Company herein at and as of the
        Time of Delivery, as to the performance by the Company of all of its
        obligations hereunder to be performed at or prior to the Time of
        Delivery, and as to such other matters as you may reasonably request,
        and the Company shall have furnished or caused to be furnished
        certificates as to the matters set forth in subsections (a) and (f) of
        this Section, and as to such other matters as you may reasonably
        request.

        8.  (a)  The Company will indemnify and hold each Underwriter harmless
against any losses, claims, damages or liabilities, joint or several, to which
such Underwriter may became subject, under the Act or otherwise, insofar as
such losses, claims, damages or liabilities (or actions in respect thereof)
arise out of or are based upon an untrue statement or alleged untrue statement
of a material fact contained in any Preliminary Prospectus, the Registration
Statement or the Prospectus, or any amendment or supplement thereto, or arise
out of or are based upon the omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading, and will reimburse each Underwriter for any legal or
other expenses reasonably incurred by such Underwriter in connection with
investigating or defending any such action or claim as such expenses are
incurred; provided, however, that the Company shall not be liable in any such
case to the extent that any such loss, claim, damage or liability arises out of
or is based upon an untrue statement or alleged untrue statement or omission or
alleged omission made in any Preliminary Prospectus, the Registration Statement
or the Prospectus or any such amendment or supplement in reliance upon and in
conformity with written information furnished to the Company by such    
Underwriter expressly for use therein.


<PAGE>   12
                                                                              12

        (b)  Each Underwriter will indemnify and hold harmless the Company
against any losses, claims, damages or liabilities to which the Company may
become subject, under the Act or otherwise, insofar as such losses, claims,
damages or liabilities (or actions in respect thereof) arise out of or are
based upon an untrue statement or alleged untrue statement of a material fact
contained in any Preliminary Prospectus, the Registration Statement or the
Prospectus, or any amendment or supplement thereto, or arise out of or are
based upon the omission or alleged omission to state therein a material fact
required to be stated therein or necessary to make the statements therein not
misleading, in each case to the extent, but only to the extent, that such
untrue statement or alleged untrue statement or omission or alleged omission
was made in any Preliminary Prospectus, the Registration Statement or the
Prospectus or any such amendment or supplement in reliance upon and in
conformity with written information furnished to the Company by such
Underwriter expressly for use therein; and will reimburse the Company for any
legal or other expenses reasonably incurred by the Company in connection with
investigating or defending any such action or claim as such expenses are
incurred.

        (c)  Promptly after receipt by a party entitled to indemnification
under subsection (a) or (b) above (the "indemnified party") of notice of the
commencement of any action, such indemnified party shall, if a claim in respect
thereof is to be made against a party required to provide indemnification to
such indemnified party under such subsection (the "indemnifying party"), notify
the indemnifying party in writing of the commencement thereof; but the omission
so to notify the indemnifying party shall not relieve it from any liability
which it may have to any indemnified party otherwise than under such
subsection.  In case any such action shall be brought against any indemnified
party and it shall notify the indemnifying party of the commencement thereof,
the indemnifying party shall be entitled to participate therein and, to the
extent that it shall wish, jointly with any other indemnifying party similarly
notified, to assume the defense thereof, with counsel satisfactory to such
indemnified party (which shall not, except with the consent of the indemnified
party, be counsel to the indemnifying party), and, after notice from the
indemnifying party to such indemnified party of its election so to assume the
defense thereof, the indemnifying party shall not be liable to such indemnified
party under such subsection for any legal expenses of other counsel or any
other expenses, in each case subsequently incurred by such indemnified party,
in connection with the defense thereof other than reasonable costs of
investigation.  In no event shall an indemnifying party be liable for the fees
and expenses of more than one counsel (in addition to any local counsel), apart
from counsel to such indemnifying party, for all indemnified parties in
connection with any one action or separate but similar or related actions
arising out of the same general allegations or circumstances.  No indemnifying
party shall be liable for any settlement of any such action effected without
its consent, provided that such consent is not unreasonably withheld or
delayed.

        (d)  If the indemnification provided for in this Section 8 is
unavailable to or insufficient to hold harmless an indemnified party under
subsection (a) or (b) above in respect of any losses, claims, damages or
liabilities (or actions in respect thereof) referred to therein, then each
indemnifying party shall contribute to the amount paid or payable by such
indemnified party as a result of such losses, claims, damages or liabilities
(or actions in respect thereof) 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 from the offering of the Notes.  If, however, the
allocation provided by the immediately preceding sentence is not permitted by
applicable law or if the indemnified party failed to give the notice required
under subsection (c) above, then each indemnifying party shall contribute to
such amount paid or payable by such indemnified 

<PAGE>   13
                                                                              13

party in such proportion as is appropriate to reflect not only such relative
benefits but also the relative fault of the Company on the one hand and the
Underwriters on the other in connection with the statements or omissions which
resulted in such losses, claims, damages or liabilities (or actions in respect
thereof), 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 shall be deemed to be in the same proportion as the total net proceeds
from the offering of the Notes (before deducting expenses) received by the
Company bear to the total underwriting discounts and commissions received by
the Underwriters, in each case as set forth in the table on the cover page of
the Prospectus.  The relative fault 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 on the one hand or the Underwriters on the
other and the parties' relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission.  The Company and
each Underwriter agree that it would not be just and equitable if contributions
pursuant to this subsection (d) 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 subsection (d).  The amount paid or
payable by an indemnified party as a result of the losses, claims, damages or
liabilities (or actions in respect thereof) referred to above in this
subsection (d) shall be deemed to include any legal or other expenses
reasonably incurred by such indemnified party in connection with investigating
or defending any such action or claim. Notwithstanding the provisions of this
subsection (d), no Underwriter shall be required to contribute any amount in
excess of the amount by which the total price at which the Notes underwritten
by such Underwriter and distributed to the public were offered to the public
exceeds the amount of any damages which such Underwriter would have 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 Act) shall be
entitled to contribution from any person who was not guilty of such fraudulent 
misrepresentation.

        (e)  The obligations of the Company under this Section 8 shall be in
addition to any liability which the Company may otherwise have and shall
extend, upon the same terms and conditions, to each person, if any, who
controls any Underwriter within the meaning of the Act; and the obligations of
each Underwriter under this Section 8 shall be in addition to any liability
which such Underwriter may otherwise have and shall extend, upon the same terms
and conditions, to each officer and director of the Company and to each person,
if any, who controls the Company within the meaning of the Act.

        9.  (a) If any Underwriter shall default in its obligation to purchase
the Notes which it has agreed to purchase hereunder, you may in your discretion
arrange for you or another party or other parties to purchase such Notes on the
terms contained herein.  If within thirty-six hours after such default by any
Underwriter you do not arrange for the purchase of such Notes, then the Company
shall be entitled to a further period of thirty-six hours within which to
procure another party or other parties satisfactory to you to purchase such
Notes on such terms.  In the event that, within the respective prescribed
periods, you  notify the Company that you have so arranged for the purchase of
such Notes, or the Company notifies you that it has so arranged for the
purchase of such Notes, you or the Company shall have the right to postpone the
Time of Delivery for a period of not more than seven days, in order to effect
whatever changes may thereby be made necessary in the Registration Statement or
the Prospectus, or in any other documents or arrangements, and the Company
agrees to file promptly any amendments to the Registration Statement or the
Prospectus which in your opinion and the opinion of the Company may thereby be
made necessary.  The term "Underwriter" as used in this Agreement shall include
any person substituted under this Section 9 with like effect as if such person
had originally been a party to this Agreement with respect to such Notes.

        (b)  If, after giving effect to any arrangements for the purchase of
the Notes of one or more defaulting Underwriters by you and the Company as
provided in subsection (a) above, the aggregate principal amount of such Notes
which remains unpurchased does not exceed one-eleventh of the aggregate
principal amount of all the Notes to be purchased hereunder, then the Company
shall have the right to require each non-defaulting Underwriter to purchase the
aggregate principal amount of Notes which such Underwriter agreed to purchase
hereunder and, in addition, to require each non-defaulting Underwriter to
purchase its pro rata share (based on the aggregate principal amount of Notes
which such Underwriter agreed to purchase hereunder) of the Notes of such
defaulting Underwriter or Underwriters for 

<PAGE>   14
                                                                              14

which such arrangements have not been made; but nothing herein shall relieve a
defaulting Underwriter from liability for its default.

        (c) If, after giving effect to any arrangements for the purchase of the
Notes of one or more defaulting Underwriters by you and the Company as provided
in subsection (a) above, the aggregate principal amount of Notes which remains
unpurchased exceeds one-eleventh of the aggregate principal amount of all the
Notes to be purchased hereunder, or if the Company shall not exercise the right
described in subsection (b) above to require non-defaulting Underwriters to
purchase the Notes of one or more defaulting Underwriters, then this Agreement
shall thereupon terminate, without liability on the part of any non-defaulting
Underwriter or the Company, except for the expenses to be borne by the Company
and the Underwriters as provided in Section 6 hereof and the indemnity and
contribution agreements in Section 8 hereof; but nothing herein shall relieve a
defaulting Underwriter from liability for its default.

        10.  The respective indemnities, agreements, representations,
warranties and other statements of the Company and the several Underwriters, as
set forth in this Agreement shall remain in full force and effect, regardless
of any investigation (or any statement as to the results thereof) made by or on
behalf of the Underwriters or any controlling person of any Underwriter, or the
Company, or any officer or director or controlling person of the Company, and
shall survive delivery of and payment for the Notes.

        11.  If this Agreement shall be terminated pursuant to Section 9
hereof, the Company shall have no liability to any Underwriter except as
provided in Section 6 and Section 8 hereof; but, if for any other reason any
Notes are not delivered by or on behalf of the Company as provided herein, the
Company will reimburse the Underwriters for all of their out-of-pocket
expenses, including fees and disbursements of counsel, reasonably incurred by
the Underwriters in making preparations for the purchase, sale and delivery of
the Notes not so delivered, but the Company shall then be under no further
liability to any Underwriter in respect of the Notes not so delivered except as
provided in Section 6 and Section 8 hereof.

        12.  All statements, requests, notices and agreements hereunder shall
be in writing, and if to any of the Underwriters shall be delivered or sent by
mail, telex or facsimile transmission to Goldman, Sachs & Co. at 85 Broad
Street, New York, N.Y. 10004, Attention:  Registration Department; and if to
the Company shall be delivered or sent by mail, telex or facsimile transmission
to the address of the Company set forth in the Registration Statement,
Attention: Secretary.  Any such statements, requests, notices or agreements
shall take effect upon receipt thereof.

        13.  This Agreement shall be binding upon, and inure solely to the
benefit of the Underwriters, the Company and, to the extent provided in
Sections 8 and 9 hereof, the officers and directors of the Company and each
person who controls the Company or any Underwriter, and their respective heirs,
executors, administrators, successors and assigns, and no other person shall
acquire or have any right under or by virtue of this Agreement.  No purchaser
of any of the Notes from any Underwriter shall be deemed a successor or assign
by reason merely of such purchase.

        14.  Time shall be of the essence of this Agreement.  As used herein,
the term "business day" shall mean any day when the Commission's office in
Washington, D.C. is open for business.

        15.  THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE
WITH THE LAWS OF THE STATE OF NEW YORK.

        16.  This Agreement may be executed by any one or more of the parties
hereto in any number of counterparts, each of which shall be deemed to be an
original, but all such counterparts shall together constitute one and the same
instrument.





<PAGE>   15
                                                                              15

        If the foregoing is in accordance with your understanding, please sign
and return to us nine counterparts hereof, and upon the acceptance hereof by
you this letter and such acceptance hereof shall constitute a binding agreement
between you and the Company.

Very truly yours,

UNION TEXAS PETROLEUM HOLDINGS, INC.


                                            By: ________________________________
                                                Name:                           
                                                Title:                          


Accepted as of the date hereof:


[UNDERWRITERS]




<PAGE>   16
                                                                             16


                                                                      Schedule 1

                                                           Principal Amount
Underwriter                                                    of Notes    
- -----------                                                ----------------




                                                             ------------
                                                             ============





<PAGE>   17
                                                                               1

                                                                         ANNEX I



        Pursuant to Section 7(e) of the Underwriting Agreement, the accountants
shall furnish letters to the Underwriters to the effect that:

                (i)  They are independent certified public accountants with
        respect to the Company and its subsidiaries within the meaning of the
        Act and the applicable published rules and regulations thereunder;

                (ii)  In their opinion, the financial statements and financial
        statement schedules provided pursuant to Article 12 of Regulation S-X
        audited by them and incorporated by reference in the Registration
        Statement or the Prospectus comply as to form in all material respects
        with the applicable accounting requirements of the Act or the Exchange
        Act, as applicable, and the applicable related published rules and
        regulations thereunder with respect to Registration Statements on Form
        S-3; and they have made a review in accordance with standards
        established by the American Institute of Certified Public Accountants of
        the consolidated interim financial statements for the periods specified
        in such letter, as indicated in their reports thereon, copies of which
        have been furnished to the Underwriters;

                (iii)  On the basis of limited procedures, not constituting an
        audit in accordance with generally accepted auditing standards,
        consisting of a reading of the unaudited financial statements referred
        to below, a reading of the latest available interim financial data of
        the Company and its subsidiaries, a reading of the minute books of the
        Company and its subsidiaries since the date of the latest audited
        financial statements included or incorporated by reference in the
        Prospectus, inquiries of officials of the Company and its subsidiaries
        responsible for financial and accounting matters regarding the specified
        items for which representations are requested below, nothing came to
        their attention as a result of the foregoing procedures that caused them
        to believe that:

                        (A)  at the date of the latest available interim
                  financial data and at a specified date not more than five days
                  prior to the date of such letter, there have been any changes
                  in the consolidated capital stock (other than issuances of
                  capital stock upon exercise of options and stock appreciation
                  rights, upon earn-outs of performance shares and upon
                  conversions of convertible securities, in each case which were
                  outstanding on the date of the latest balance sheet included
                  or incorporated by reference in the Prospectus) or any
                  increase in the consolidated short-term or long-term debt of
                  the Company and its subsidiaries, or any decreases in
                  consolidated net current assets (working capital) or
                  stockholders' equity or other items heretofore determined with
                  the Underwriters, or any increases in any items heretofore
                  determined with the Underwriters, in each case as compared
                  with amounts shown in the latest balance sheet included or
                  incorporated by reference in the Prospectus, except in each
                  case for changes, increases or decreases which the Prospectus
                  discloses have occurred or may occur or which are described in
                  such letter;

                        (B)  for the period from the date of the latest
                  financial statements included or incorporated by reference in
                  the Prospectus to the specified date referred to in Clause (A)
                  there were any decreases in consolidated net revenues or
                  operating profit or the total or per share amounts of
                  consolidated net income or other items heretofore determined
                  with the Underwriters, or any increases in any items
                  heretofore determined with the Underwriters, in each case as
                  compared with the comparable period of the preceding year,
                  except in each case for increases or decreases which the
                  Prospectus discloses have occurred or may occur or which are
                  described in such letter; and





<PAGE>   18
                                                                             2


                (iv)  In addition to the audit referred to in their report(s)
        included or incorporated by reference in the Prospectus and the limited
        procedures, inspection of minute books, inquiries and other procedures
        referred to in paragraphs (ii) and (iii) above, they have carried out
        certain specified procedures, not constituting an audit in accordance
        with generally accepted auditing standards, with respect to certain
        amounts, percentages and financial information specified by the
        Underwriters which are derived from the general accounting records of
        the Company and its subsidiaries, which appear in the Prospectus
        (excluding documents incorporated by reference) or in Part II of, or in
        exhibits and schedules to, the Registration Statement specified by the
        Underwriters or in documents incorporated by reference in the Prospectus
        specified by the Underwriters, and have compared certain of such
        amounts, percentages and financial information with the accounting
        records of the Company and its subsidiaries and have found them to be in
        agreement.


<PAGE>   19
                                                                             3


                                                                        ANNEX II


                             MATERIAL SUBSIDIARIES


UNION TEXAS PETROLEUM ENERGY CORPORATION
UNION TEXAS INTERNATIONAL CORPORATION
UNION TEXAS EAST KALIMANTAN LIMITED
UNION TEXAS PAKISTAN, INC.
UNION TEXAS PETROLEUM LIMITED
UNISTAR, INC.






<PAGE>   1
                                                                    EXHIBIT 12.1

                      RATIO OF EARNINGS TO FIXED CHARGES
                            (DOLLARS IN THOUSANDS)
<TABLE>
<CAPTION>
                                                                YEARS ENDED DECEMBER 31,
                                      ---------------------------------------------------------------------------------
                                         1990             1991             1992             1993                 1994
                                      ----------       ----------       ----------        ---------           ----------
<S>                                   <C>              <C>              <C>               <C>                 <C>
Net pretax income ................    $  268,886       $  447,972       $  213,206        $  26,983(1)        $  211,983
Fixed charges
  Interest expense ...............        82,244           88,377           20,261           30,506               28,721
  Preferred stock dividends          
    of a subsidiary ..............        11,791            5,934            4,674            1,681                 --   
  Capitalized debt cost ..........         2,677            3,044              913            1,536                1,452
  Interest portion of rent                  
    expenses .....................         6,915            6,201            2,840            2,777                3,170      
                                      ----------       ----------       ----------        ---------           ----------
    Total fixed charges ..........       103,627          103,556           28,688           36,500               33,343
  Less: Capitalized
    interest, net ................        13,313           39,852           14,408            4,623                1,464
                                      ----------       ----------       ----------        ---------           ----------
                                          90,314           63,704           14,280           31,877               31,879
Earnings before fixed
  charges ........................    $  359,200       $  511,676       $  227,486        $  58,860           $  243,862
                                      ==========       ==========       ==========        =========           ==========
Ratio of earnings to
  fixed charges ..................          3.47             4.94            7.93              1.61                 7.31
</TABLE>

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

(1)    During 1993, the Company recorded a non-cash charge to depreciation,
       depletion and amortization of $103 million pretax ($48 million
       after-tax) for the write-down of its investment in the U.K. North Sea's
       Piper field.  Excluding the effect of the piper write-down, the ratio of
       earnings to fixed charges for 1993 would have been 4.45.



<PAGE>   1
                                                                   EXHIBIT 99.1



                      [UNION TEXAS PETROLEUM LETTERHEAD]

Contact:  Carol L. Cox
          (713) 968-2714

            UNION TEXAS PETROLEUM ACQUIRES 15% WORKING INTEREST IN
                   PORCUPINE BASIN BLOCKS OFFSHORE IRELAND


        Houston, March 16, 1995 -- Union Texas Petroleum Holdings, Inc. today
reported that its London-based subsidiary, Union Texas Petroleum Limited, has
acquired a 15% working interest in five and a half blocks in the Porcupine
Basin situated offshore Ireland, which were awarded by Mr. Emmet M. Stagg,
T.D., the Minister for State at the Department of Transport, Energy and
Commerce, on March 15, 1995.

        "We are very pleased to share in the exploration of the Porcupine
Basin," said Mr. John W. J. Hardy, Managing Director of Union Texas Petroleum
Limited. "Our participation in this venture represents our third Irish oil and
gas venture in the past 12 months. We are committed to expanding our exploration
activities to other prospective areas in Ireland and the United Kingdom."

        The five and a half blocks, which encompass a total of approximately
325,000 gross acres, are situated in the Atlantic Ocean about 95 miles west
of the Irish Mainland. The blocks involved are 34/24, 34/25, 34/30, 35/21,
35/24 and the eastern half of 35/23.

        The operator of the consortium is Statoil (U.K.) Ltd., which has a
27.5% working interest. The remaining interest is held by 





                                   - more-



<PAGE>   2
Fina, 27.5% working interest; Conoco, 20% working interest; and Seafield, 10% 
working interest.

        The consortium's license for the five and a half blocks will be valid
for 15 years from March 15, 1995. During 1995-1997, the consortium plans to
acquire seismic data over the blocks and to conduct additional geological and
geophysical studies. Water depths range from 650 to 2,300 feet.

ST. GEORGE'S CHANNEL BASIN

        In early 1995, Union Texas entered into an agreement to acquire a 25%
working interest in five and a half offshore blocks in the St. George's Channel
Basin offshore Ireland, subject to the approval of the Irish Minister for
Transport, Energy and Communications. Union Texas has agreed to acquire its
interest in the blocks, which encompass a total of about 345,000 gross acres,
from subsidiaries of Marathon Oil Company, operator of the venture. Marathon
holds the remaining 75% working interest. The initial exploratory well is
expected to begin drilling in the second quarter of 1995.

SLYNE/ERRIS BASIN

        Union Texas also has a 30% working interest in a venture that was
awarded 11 offshore Ireland blocks as part of the first Irish Frontier Round in
March 1994. The blocks, which comprise 650,400 gross acres, are situated in the
Atlantic Ocean about 43 miles west of the Irish Mainland in the Slyne/Erris
basins. Statoil (U.K.) Ltd., as operator, has a 45% working interest. The
remaining 25% working interest is held by Rimrock Offshore Limited, a
wholly-owned subsidiary of Murphy Oil Corporation. The group has recently 





<PAGE>   3

acquired an Aeromag survey over the area and is planning to shoot seismic this
year.

         One of the largest independent producers located in the U.S.,
Houston-based Union Texas Petroleum Holdings, Inc. (NYSE: UTH) explores for and
produces oil and gas overseas primarily in the U.K. North Sea, Indonesia and
other strategic areas. The company also has petrochemical interests in the U.S.

                                   #  #  #

Note to Editors and Reporters: A map of Union Texas' interests offshore Ireland
is available from Carol Cox in Houston at (713) 968-2714.




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