HYDRIL CO
S-1/A, EX-1.1, 2000-09-25
OIL & GAS FIELD MACHINERY & EQUIPMENT
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<PAGE>   1



                                                                     EXHIBIT 1.1



                                 Hydril Company

                                7,500,000 Shares
                                  Common Stock
                                ($0.50 par value)

                             Underwriting Agreement


                                                             New York, New York
                                                                      ___, 2000

Salomon Smith Barney Inc.
Credit Suisse First Boston Corporation
Dain Rauscher Incorporated
Simmons & Company International
As Representatives of the several Underwriters,
c/o Salomon Smith Barney Inc.
388 Greenwich Street
New York, New York 10013


Ladies and Gentlemen:

               Hydril Company, a corporation organized under the laws of
Delaware (the "Company"), proposes to sell to the several underwriters named in
Schedule I hereto (the "Underwriters"), for whom you (the "Representatives") are
acting as representatives, 2,323,932 shares of Common Stock, $0.50 par value
("Common Stock") of the Company, and the persons named in Schedule II hereto
(the "Selling Stockholders") propose to sell to the several Underwriters
5,176,068 shares of Common Stock (said shares to be issued and sold by the
Company and shares to be sold by the Selling Stockholders collectively being
hereinafter called the "Underwritten Securities"). The Company and the Selling
Stockholders named in Schedule II hereto also propose to grant to the
Underwriters an option to purchase up to 1,100,000 additional shares of Common
Stock to cover over-allotments (the "Option Securities"; the Option Securities,
together with the Underwritten Securities, being hereinafter called the
"Securities"). To the extent there are no additional Underwriters listed on
Schedule I other than you, the term Representatives as used herein shall mean
you, as Underwriters, and the terms Representatives and Underwriters shall mean
either the singular or plural as the context requires. In addition, the term
Selling Stockholders shall mean either the singular or plural as the context
requires. The use of the neuter in this Agreement shall include the feminine and
masculine wherever appropriate. Certain terms used herein are defined in Section
17 hereof.



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               As part of the offering contemplated by this Agreement, Salomon
Smith Barney Inc. has agreed to reserve out of the Securities set forth opposite
its name on the Schedule I to this Agreement, up to 525,000 shares, for sale to
the Company's employees, officers, and directors as well as individuals
associated or affiliated with the Company's employees, officers, and directors
(collectively, "Participants"), as set forth in the Prospectus under the heading
"Underwriting" (the "Directed Share Program"). The Securities to be sold by
Salomon Smith Barney Inc. pursuant to the Directed Share Program (the "Directed
Shares") will be sold by Salomon Smith Barney Inc. pursuant to this Agreement at
the public offering price. Any Directed Shares not orally confirmed for purchase
by any Participants by the end of the business day on which this Agreement is
executed will be offered to the public by Salomon Smith Barney Inc. as set forth
in the Prospectus.

         1. Representations and Warranties.

               (i) The Company represents and warrants to, and agrees with, each
Underwriter as set forth below in this Section 1.

               (a) The Company has prepared and filed with the Commission a
          registration statement (file number 333-38954) on Form S-1, including
          a related preliminary prospectus, for registration under the Act of
          the offering and sale of the Securities. The Company may have filed
          one or more amendments thereto, including a related preliminary
          prospectus, each of which has previously been furnished to you. The
          Company will next file with the Commission either (1) prior to the
          Effective Date of such registration statement, a further amendment to
          such registration statement (including the form of final prospectus)
          or (2) after the Effective Date of such registration statement, a
          final prospectus in accordance with Rules 430A and 424(b). In the case
          of clause (2), the Company has included in such registration
          statement, as amended at the Effective Date, all information (other
          than Rule 430A Information) required by the Act and the rules
          thereunder to be included in such registration statement and the
          Prospectus. As filed, such amendment and form of final prospectus, or
          such final prospectus, shall contain all Rule 430A Information,
          together with all other such required information, and, except to the
          extent the Representatives shall agree in writing to a modification,
          shall be in all substantive respects in the form furnished to you
          prior to the Execution Time or, to the extent not completed at the
          Execution Time, shall contain only such specific additional
          information and other changes (beyond that contained in the latest
          Preliminary Prospectus) as the Company has advised you, prior to the
          Execution Time, will be included or made therein.

               (b) On the Effective Date, the Registration Statement did or
          will, and when the Prospectus is first filed (if required) in
          accordance with Rule 424(b) and on the Closing Date (as defined
          herein) and on any date on which Option




<PAGE>   3

                                                                              3

          Securities are purchased, if such date is not the Closing Date (a
          "settlement date"), the Prospectus (and any supplements thereto) will,
          comply in all material respects with the applicable requirements of
          the Act and the rules thereunder; on the Effective Date and at the
          Execution Time, the Registration Statement did not or will not contain
          any untrue statement of a material fact or omit to state any material
          fact required to be stated therein or necessary in order to make the
          statements therein not misleading; and, on the Effective Date, the
          Prospectus, if not filed pursuant to Rule 424(b), will not, and on the
          date of any filing pursuant to Rule 424(b) and on the Closing Date and
          any settlement date, the Prospectus (together with any supplement
          thereto) will not, include any untrue statement of a material fact or
          omit to state a material fact necessary in order to make the
          statements therein, in the light of the circumstances under which they
          were made, not misleading; provided, however, that the Company makes
          no representations or warranties as to the information contained in or
          omitted from the Registration Statement, or the Prospectus (or any
          supplement thereto) in reliance upon and in conformity with
          information furnished in writing to the Company by or on behalf of any
          Selling Stockholder or any Underwriter through the Representatives
          specifically for inclusion in the Registration Statement or the
          Prospectus (or any supplement thereto).

               (c) Annex A attached hereto sets forth the name, jurisdiction of
          organization, principal place of business and jurisdictions where
          business is conducted or assets are owned or leased by the Company or
          subsidiaries of the Company (collectively, the "Subsidiaries"). Each
          of the Company and its Subsidiaries has been duly incorporated and is
          validly existing as a corporation in good standing under the laws of
          the jurisdiction in which it is chartered or organized with full
          corporate power and authority to own or lease, as the case may be, and
          to operate its properties and conduct its business as described in the
          Prospectus, and is duly qualified to do business as a foreign
          corporation and is in good standing under the laws of each
          jurisdiction which requires such qualification, except where the
          failure to so qualify could not reasonably be expected to have a
          material adverse effect on the condition (financial or otherwise),
          prospects, business, properties or results of operations of the
          Company and its Subsidiaries, taken as a whole, whether or not arising
          from transactions in the ordinary course of business (a "Material
          Adverse Effect");

               (d) All the outstanding shares of capital stock of each
          Subsidiary have been duly and validly authorized and issued and are
          fully paid and nonassessable, and, except as otherwise set forth in
          the Prospectus, all outstanding shares of capital stock of the
          Subsidiaries are owned by the Company either directly or through
          wholly owned subsidiaries free and clear of any perfected security
          interest or any other security interests, claims, liens or
          encumbrances;




<PAGE>   4

                                                                              4

               (e) The Company's authorized equity capitalization is as set
          forth in the Prospectus; the capital stock of the Company conforms in
          all material respects to the description thereof contained in the
          Prospectus; the outstanding shares of Common Stock (including the
          Securities being sold hereunder by the Selling Stockholders) have been
          duly and validly authorized and issued and are fully paid and
          nonassessable; the Securities being sold hereunder by the Company have
          been duly and validly authorized, and, when issued and delivered to
          and paid for by the Underwriters pursuant to this Agreement, will be
          fully paid and nonassess able; the certificates for the Securities are
          in valid and sufficient form; the holders of outstanding shares of
          capital stock of the Company are not entitled to preemptive or other
          rights to subscribe for the Securities; and, except as set forth in
          the Prospectus, no options, warrants or other rights to purchase,
          agreements or other obligations to issue, or rights to convert any
          obligations into or exchange any securities for, shares of capital
          stock of or ownership interests in the Company are outstanding.

               (f) There is no franchise, contract or other document of a
          character required to be described in the Registration Statement or
          Prospectus, or to be filed as an exhibit thereto, which is not
          described or filed as required; and the statements in the Prospectus
          under the headings "U.S. Tax Consequences to Non- U.S. Holders",
          "Description of Capital Stock," "Shares Eligible for Future Sale,"
          "Business-Regulations," "Risk Factors - Limitations on our ability to
          protect our intellectual property rights could cause a loss in
          revenues and any competitive advantage we hold, - Environmental
          compliance costs and liabilities could have a material adverse effect
          on our financial condition, - Provisions of our charter, bylaws and
          our note agreement may discourage acquisition bids and cause our
          common stock to trade at a discount to where it otherwise may trade,
          and - Future sales of our common stock could adversely affect its
          market price," insofar as such statements summarize legal matters,
          agreements, documents, or proceedings discussed therein, are accurate
          and fair summaries of such legal matters, agreements, documents or
          proceedings.

               (g) This Agreement has been duly authorized, executed and
          delivered by the Company and constitutes a valid and binding
          obligation of the Company enforceable in accordance with its terms.

               (h) The Company is not and, after giving effect to the offering
          and sale of the Securities and the application of the proceeds thereof
          as described in the Prospectus, will not be an "investment company" as
          defined in the Investment Company Act of 1940, as amended.

               (i) No consent, approval, authorization, filing with or order of
          any court or governmental agency or body is required in connection
          with the transactions



<PAGE>   5


                                                                              5

          contemplated herein, except such as have been obtained under the Act
          and such as may be required under the blue sky laws of any
          jurisdiction in connection with the purchase and distribution of the
          Securities by the Underwriters in the manner contemplated herein and
          in the Prospectus.

               (j) Neither the issue and sale of the Securities nor the
          consummation of any other of the transactions herein contemplated nor
          the fulfillment of the terms hereof will conflict with, result in a
          breach or violation or imposition of any lien, charge or encumbrance
          upon any property or assets of the Company or any of its Subsidiaries
          pursuant to, (i) the charter or by-laws of the Company or any of its
          Subsidiaries, (ii) the terms of any material indenture, contract,
          lease, mortgage, deed of trust, note agreement, loan agreement or
          other agreement, obligation, condition, covenant or instrument to
          which the Company or any of its Subsidiaries is a party or bound or to
          which its or their property is subject, or (iii) any statute, law,
          rule, regulation, judgment, order or decree applicable to the Company
          or any of its Subsidiaries of any court, regulatory body,
          administrative agency, governmental body, arbitrator or other
          authority having jurisdiction over the Company or any of its
          Subsidiaries or any of its or their properties.

               (k) Except for the rights of the Selling Stockholders to sell the
          Securities set forth in Schedule II, no holders of securities of the
          Company have rights to the registration of such securities under the
          Registration Statement.

               (l) The consolidated historical financial statements and
          schedules of the Company and its consolidated subsidiaries included in
          the Prospectus and the Registration Statement present fairly in all
          material respects the financial condition, results of operations and
          cash flows of the Company as of the dates and for the periods
          indicated, comply as to form with the applicable accounting
          requirements of the Act and have been prepared in conformity with
          generally accepted accounting principles applied on a consistent basis
          throughout the periods involved (except as otherwise noted therein).
          The selected financial data set forth under the caption "Selected
          Financial Information" in the Prospectus and Registration Statement
          fairly present, on the basis stated in the Prospectus and the
          Registration Statement, the information included therein.

               (m) No action, suit or proceeding by or before any court or
          governmental agency, authority or body or any arbitrator involving the
          Company or any of its Subsidiaries or its or their property is pending
          or, to the best knowledge of the Company, threatened that (i) could
          reasonably be expected to have a material adverse effect on the
          performance of this Agreement or the consummation of any of the
          transactions contemplated hereby or (ii) could reasonably be expected
          to have a Material Adverse Effect, except as set forth in or
          contemplated in the Prospectus (exclusive of any supplement thereto).



<PAGE>   6


                                                                              6

               (n) Except as would not have, individually or in the aggregate, a
          Material Adverse Effect, each of the Company and each of its
          Subsidiaries owns or leases all such properties as are necessary to
          the conduct of its operations as presently conducted.

               (o) Neither the Company nor any Subsidiary is in violation or
          default of (i) any provision of its charter or bylaws, (ii) the terms
          of any indenture, contract, lease, mortgage, deed of trust, note
          agreement, loan agreement or other agreement, obligation, condition,
          covenant or instrument to which it is a party or bound or to which its
          property is subject, or (iii) any statute, law, rule, regulation,
          judgment, order or decree of any court, regulatory body,
          administrative agency, governmental body, arbitrator or other
          authority having jurisdiction over the Company or such Subsidiary or
          any of its properties, as applicable , except where, in the case of
          clauses (ii) and (iii) above, such violation or default could not
          reasonably be expected to have a Material Adverse Effect.

               (p) Deloitte & Touche LLP, who have certified certain financial
          statements of the Company and its consolidated subsidiaries and
          delivered their report with respect to the audited consolidated
          financial statements and schedules included in the Prospectus, are
          independent public accountants with respect to the Company within the
          meaning of the Act and the applicable published rules and regulations
          thereunder.

               (q) There are no transfer taxes or other similar fees or charges
          under Federal law or the laws of any state, or any political
          subdivision thereof, required to be paid in connection with the
          execution and delivery of this Agreement or the issuance by the
          Company or sale by the Company of the Securities.

               (r) The Company has filed all foreign, federal, state and local
          tax returns that are required to be filed or has requested extensions
          thereof, except in any case in which the failure so to file would not
          have a Material Adverse Effect, except as set forth in or contemplated
          in the Prospectus (exclusive of any supplement thereto), and has paid
          all taxes required to be paid by it and any other assessment, fine or
          penalty levied against it, to the extent that any of the foregoing is
          due and payable, except for any such assessment, fine or penalty that
          is currently being contested in good faith or as would not have a
          Material Adverse Effect, except as set forth in or contemplated in the
          Prospectus (exclusive of any supplement thereto).

               (s) No labor problem or dispute with the employees of the Company
          or any of its Subsidiaries exists or, to the Company's knowledge, is
          threatened or imminent, and the Company is not aware of any existing
          or imminent labor disturbance by the employees of any of its or its
          Subsidiaries' principal suppliers,


<PAGE>   7


                                                                               7

          contractors or customers, that could have a Material Adverse Effect,
          except as set forth in or contemplated in the Prospectus (exclusive of
          any supplement thereto).

               (t) The Company and each of its Subsidiaries are insured by
          insurers of recognized financial responsibility against such losses
          and risks and in such amounts as are reasonably prudent and customary
          in the businesses in which they are engaged; all policies of insurance
          and any fidelity or surety bonds insuring the Company or any of its
          Subsidiaries or their respective businesses, assets, employees,
          officers and directors are in full force and effect; the Company and
          its Subsidiaries are in compliance with the terms of such policies and
          instruments in all material respects; and there are no claims by the
          Company or any of its Subsidiaries under any such policy or instrument
          as to which any insurance company is denying liability or defending
          under a reservation of rights clause; neither the Company nor any such
          Subsidiary has been refused any insurance coverage sought or applied
          for; and neither the Company nor any such Subsidiary has any reason to
          believe that it will not be able to renew its existing insurance
          coverage as and when such coverage expires or to obtain similar
          coverage from similar insurers as may be necessary to continue its
          business at a cost that would not have a Material Adverse Effect,
          except as set forth in or contemplated in the Prospectus (exclusive of
          any supplement thereto).

               (u) No Subsidiary of the Company is currently prohibited,
          directly or indirectly, from paying any dividends to the Company, from
          making any other distribution on such Subsidiary's capital stock, from
          repaying to the Company any loans or advances to such Subsidiary from
          the Company or from transferring any of such Subsidiary's property or
          assets to the Company or any other Subsidiary of the Company, except
          as described in or contemplated by the Prospectus.

               (v) The Company and its Subsidiaries possess all licenses,
          certificates, permits and other authorizations issued by the
          appropriate federal, state or foreign regulatory authorities necessary
          to conduct their respective businesses, and neither the Company nor
          any such Subsidiary has received any notice of proceedings relating to
          the revocation or modification of any such certificate, authorization
          or permit which, singly or in the aggregate, if the subject of an
          unfavorable decision, ruling or finding, would have a Material Adverse
          Effect, except as set forth in or contemplated in the Prospectus
          (exclusive of any supplement thereto).

               (w) The Company maintains a system of internal accounting
          controls sufficient to provide reasonable assurance that (i)
          transactions are executed in accordance with management's general or
          specific authorizations; (ii) transactions are recorded as necessary
          to permit preparation of consolidated financial statements in
          conformity with generally accepted accounting principles and to
          maintain asset accountability; (iii) access to assets is permitted
          only in accordance



<PAGE>   8


                                                                              8

          with management's general or specific authorization; and (iv) the
          recorded accountability for assets is compared with the existing
          assets at reasonable intervals and appropriate action is taken with
          respect to any differences.

               (x) The Company has not taken, directly or indirectly, any action
          that has constituted or that was designed to or might reasonably be
          expected to cause or result in, under the Exchange Act or otherwise,
          the stabilization or manipulation of the price of any security of the
          Company to facilitate the sale or resale of the Securities.

               (y) The Company and its Subsidiaries are (i) in compliance with
          any and all applicable foreign, federal, state and local laws and
          regulations relating to the protection of human health and safety, the
          environment or hazardous or toxic substances or wastes, pollutants or
          contaminants ("Environmental Laws"), (ii) have received and are in
          compliance with all permits, licenses or other approvals required of
          them under applicable Environmental Laws to conduct their respective
          businesses and (iii) have not received notice of any actual or
          potential liability for the investigation or remediation of any
          disposal or release of hazardous or toxic substances or wastes,
          pollutants or contaminants, except where such non-compliance with
          Environmental Laws, failure to receive required permits, licenses or
          other approvals, or liability would not, individually or in the
          aggregate, have a Material Adverse Effect, except as set forth in or
          contemplated in the Prospectus (exclusive of any supplement thereto).
          Except as set forth in the Prospectus, neither the Company nor any of
          the Subsidiaries has been named as a "potentially responsible party"
          under the Comprehensive Environmental Response, Compensation, and
          Liability Act of 1980, as amended.

               (z) In the ordinary course of its business, the Company
          periodically reviews the effect of Environmental Laws on the business,
          operations and properties of the Company and its Subsidiaries, in the
          course of which it identifies and evaluates associated costs and
          liabilities (including, without limitation, any capital or operating
          expenditures required for clean-up, closure of properties or
          compliance with Environmental Laws, or any permit, license or
          approval, any related constraints on operating activities and any
          potential liabilities to third parties). On the basis of such review,
          the Company has reasonably concluded that such associated costs and
          liabilities would not, singly or in the aggregate, have a Material
          Adverse Effect, except as set forth in or contemplated in the
          Prospectus (exclusive of any supplement thereto).

               (aa) Each of the Company and its Subsidiaries has fulfilled its
          obligations, if any, under the minimum funding standards of Section
          302 of the United States Employee Retirement Income Security Act of
          1974 ("ERISA") and the regulations and published interpretations
          thereunder with respect to each "plan" (as defined in



<PAGE>   9

                                                                              9

          Section 3(3) of ERISA and such regulations and published
          interpretations) in which employees of the Company and its
          Subsidiaries are eligible to participate and each such plan is in
          compliance in all material respects with the presently applicable
          provisions of ERISA and such regulations and published
          interpretations. The Company and its Subsidiaries have not incurred
          any unpaid liability to the Pension Benefit Guaranty Corporation
          (other than for the payment of premiums in the ordinary course) or to
          any such plan under Title IV of ERISA.

               (bb) The Subsidiaries listed on Annex C attached hereto are the
          only significant subsidiaries of the Company as defined by Rule 1-02
          of Regulation S- X (the "Significant Subsidiaries").

               (cc) The Company and its subsidiaries own, possess, license or
          have other rights to use, on reasonable terms, all patents, patent
          applications, trade and service marks, trade and service mark
          registrations, trade names, copyrights, licenses, inventions, trade
          secrets, technology, know-how and other intellectual property
          (collectively, the "Intellectual Property") necessary for the conduct
          of the Company's business as now conducted or as proposed in the
          Prospectus to be conducted. Except as set forth in the Prospectus
          under the caption "Business-- Patents and Proprietary Rights," (a) to
          the Company's knowledge, there are no rights of third parties to any
          such Intellectual Property; (b) to the Company's knowledge, there is
          no material infringement by third parties of any such Intellectual
          Property; (c) there is no pending or, to the Company's best knowledge,
          threatened action, suit, proceeding or claim by others challenging the
          Company's rights in or to any such Intellectual Property, and the
          Company is unaware of any facts which would form a reasonable basis
          for any such claim; (d) there is no pending or, to the Company's best
          knowledge, threatened action, suit, proceeding or claim by others
          challenging the validity or scope of any such Intellectual Property,
          and the Company is unaware of any facts which would form a reasonable
          basis for any such claim; (e) there is no pending or, to the Company's
          knowledge, threatened action, suit, proceeding or claim by others that
          the Company infringes or otherwise violates any patent, trademark,
          copyright, trade secret or other proprietary rights of others, and the
          Company is unaware of any other fact which would form a reasonable
          basis for any such claim; (f) there is no U.S. patent or published
          U.S. patent application which contains claims that dominate or may
          dominate any Intellectual Property described in the Prospectus as
          being owned by or licensed to the Company or that interferes with the
          issued or pending claims of any such Intellectual Property; and (g)
          there is no prior art of which the Company is aware that may render
          any U.S. patent held by the Company invalid or any U.S. patent
          application held by the Company unpatentable which has not been
          disclosed to the U.S. Patent and Trademark Office.


<PAGE>   10



                                                                             10

               (dd) The statements contained in the Prospectus under the
          captions "Risk Factors -- Risks Relating to Our Business --
          Limitations on our ability to protect our intellectual property rights
          could cause a loss in revenues and any competitive advantage we hold"
          and "Business -- Our Emphasis on Research and Development" as well as
          other references in the Prospectus to patent and licensing matters,
          insofar as such statements summarize legal matters, agreements,
          documents, or proceedings discussed therein, are accurate and fair
          summaries of such legal matters, agreements, documents or proceedings.

               (ee) The Company has duly inquired as to the NASD membership or
          affiliation of each of the Selling Stockholders and, other than as
          expressly communicated to the Representatives or their counsel, no
          such NASD membership or affiliation exists.

               Furthermore, the Company represents and warrants to Salomon Smith
Barney Inc. that (i) the Registration Statement, the Prospectus and any
preliminary prospectus comply, and any further amendments or supplements thereto
will comply, with any applicable laws or regulations of foreign jurisdictions in
which the Prospectus or any preliminary prospectus, as amended or supplemented,
if applicable, are distributed in connection with the Directed Share Program,
and that (ii) no authorization, approval, consent, license, order, registration
or qualification of or with any government, governmental instrumentality or
court, other than such as have been obtained, is necessary under the securities
laws and regulations of foreign jurisdictions in which the Directed Shares are
offered outside the United States.

               The Company has not offered, or caused the Underwriters to offer,
Securities to any person pursuant to the Directed Share Program with the
specific intent to unlawfully influence (i) a customer or supplier of the
Company to alter the customer's or supplier's level or type of business with the
Company, or (ii) a trade journalist or publication to write or publish favorable
information about the Company or its products.

               Any certificate signed by any officer of the Company and
delivered to the Representatives or counsel for the Underwriters in connection
with the offering of the Securities shall be deemed a representation and
warranty by the Company, as to matters covered thereby, to each Underwriter.

               (ii) Each Selling Stockholder, except that, with respect to
paragraph (ii)(f) of this Section 1, only each Selling Stockholder who owns more
than 5% of the Company's common stock prior to this offering, other than Booth &
Co., severally and not jointly represents and warrants to, and agrees with, each
Underwriter that:

               (a) Such Selling Stockholder is the record and beneficial owner
          of the Securities to be sold by it hereunder free and clear of all
          liens, encumbrances,



<PAGE>   11


                                                                             11

          equities and claims, other than pursuant to the Custody Agreement,
          and, assuming that each Underwriter acquires its interest in the
          Securities it has purchased from such Selling Stockholder without
          notice of any adverse claim (within the meaning of Section 8-105 of
          the New York Uniform Commercial Code ("UCC")), each Underwriter that
          has purchased such Securities delivered on the Closing Date to The
          Depository Trust Company or other securities intermediary by making
          payment therefor as provided herein, and that has had such Securities
          credited to the securities account or accounts of such Underwriters
          maintained with The Depository Trust Company or such other securities
          intermediary will have acquired a security entitlement (within the
          meaning of Section 8-102(a)(17) of the UCC) to such Securities
          purchased by such Underwriter, and no action based on an adverse claim
          (within the meaning of Section 8-105 of the UCC) may be asserted
          against such Underwriter with respect to such Securities.

               (b) Such Selling Stockholder has not taken, directly or
          indirectly, any action designed to or which has constituted or which
          might reasonably be expected to cause or result, under the Exchange
          Act or otherwise, in stabilization or manipulation of the price of any
          security of the Company to facilitate the sale or resale of the
          Securities.

               (c) Certificates in negotiable form for such Selling
          Stockholder's Securities have been placed in custody, for delivery
          pursuant to the terms of this Agreement, under a Custody Agreement and
          Power of Attorney duly authorized (if applicable) executed and
          delivered by such Selling Stockholder, in the form heretofore
          furnished to you (the "Custody Agreement") with O'Melveny & Myers LLP,
          as Custodian (the "Custodian"); the Securities represented by the
          certificates so held in custody for each Selling Stockholder are
          subject to the interests hereunder of the Underwriters; the
          arrangements for custody and delivery of such certificates, made by
          such Selling Stockholder hereunder and under the Custody Agreement,
          are not subject to termination by any acts of such Selling
          Stockholder, or by operation of law, whether by the death or
          incapacity of such Selling Stockholder or the occurrence of any other
          event; and if any such death, incapacity or any other such event shall
          occur before the delivery of such Securities hereunder, certificates
          for the Securities will be delivered by the Custodian in accordance
          with the terms and conditions of this Agreement and the Custody
          Agreement as if such death, incapacity or other event had not
          occurred, regardless of whether or not the Custodian shall have
          received notice of such death, incapacity or other event.

               (d) No consent, approval, authorization or order of any court or
          governmental agency or body is required for the consummation by such
          Selling Stockholder of the transactions contemplated herein, except
          such as may have been obtained under the Act and such as may be
          required under the blue sky laws


<PAGE>   12


                                                                             12

          of any jurisdiction in connection with the purchase and distribution
          of the Securities by the Underwriters and such other approvals as have
          been obtained.

               (e) Neither the sale of the Securities being sold by such Selling
          Stockholder nor the consummation of any other of the transactions
          herein contemplated by such Selling Stockholder or the fulfillment of
          the terms hereof by such Selling Stockholder will conflict with,
          result in a breach or violation of, or constitute a default under any
          law or, as applicable, the charter or by-laws of such Selling
          Stockholder or the terms of any indenture or other agreement or
          instrument to which such Selling Stockholder or, as applicable, any of
          its subsidiaries is a party or bound, except where such conflict with,
          breach or violation of, or default under such indenture or other
          agreement or instrument does not have a materially adverse effect on
          the sale of the Securities being sold by such Selling Stockholder, the
          consummation of any other of the transactions herein contemplated by
          such Selling Stockholder or the fulfillment of the terms hereof by
          such Selling Stockholder, or any judgment, order or decree applicable
          to such Selling Stockholder or, as applicable, any of its subsidiaries
          of any court, regulatory body, administrative agency, governmental
          body or arbitrator having jurisdiction over such Selling Stockholder
          or, as applicable, any of its subsidiaries.

               (f) Such Selling Stockholder is familiar with the Registration
          Statement and has no knowledge of any material fact, condition or
          information not disclosed in the Prospectus or any supplement thereto
          which has adversely affected or may adversely affect the business of
          the Company or any of its Significant Subsidiaries; and the sale of
          Securities by such Selling Stockholder pursuant hereto is not prompted
          by any information concerning the Company or any of its Significant
          Subsidiaries which is not set forth in the Prospectus or any
          supplement thereto.

               (g) In respect of any statements in or omissions from the
          Registration Statement or the Prospectus or any supplements thereto
          made in reliance upon and in conformity with information furnished in
          writing to the Company by such Selling Stockholder specifically for
          use in connection with the preparation thereof, such Selling
          Stockholder hereby makes the same representations and warranties to
          each Underwriter as the Company makes to such Underwriter under
          paragraph (i)(b) of this Section.

               Any certificate signed by, or on behalf of, any Selling
Stockholder or any officer thereof and delivered to the Representatives or
counsel for the Underwriters in connection with the offering of the Securities
shall be deemed a representation and warranty by such Selling Stockholder, as to
matters covered thereby, to each Underwriter.


<PAGE>   13



                                                                             13

               2. Purchase and Sale. (a) Subject to the terms and conditions and
in reliance upon the representations and warranties herein set forth, the
Company and the Selling Stockholders agree, severally and not jointly, to sell
to each Underwriter, and each Underwriter agrees, severally and not jointly, to
purchase from the Company and the Selling Stockholders, at a purchase price of
$_____ per share, the amount of the Underwritten Securities set forth opposite
such Underwriter's name in Schedule I hereto.

               (b) Subject to the terms and conditions and in reliance upon the
representations and warranties herein set forth, the Company and the Selling
Stockholders named in Schedule II hereby grant an option to the several
Underwriters to purchase, severally and not jointly, up to 1,100,000 Option
Securities at the same purchase price per share as the Underwriters shall pay
for the Underwritten Securities. Said option may be exercised only to cover
over-allotments in the sale of the Underwritten Securities by the Underwriters.
Said option may be exercised in whole or in part at any time (but not more than
once) on or before the 30th day after the date of the Prospectus upon written or
telegraphic notice by the Representatives to the Company and such Selling
Stockholders setting forth the number of shares of the Option Securities as to
which the several Underwriters are exercising the option and the settlement
date. The maximum number of Option Securities to be sold by the Company is
348,736 and the maximum aggregate number of Option Securities to be sold by the
Selling Stockholders is 751,264. The maximum number of Option Securities which
each Selling Stockholder agrees to sell is set forth in Schedule II hereto. In
the event that the Underwriters exercise less than their full over-allotment
option, the number of Option Securities to be sold by the Company and each
Selling Stockholder listed on Schedule II shall be, as nearly as practicable, in
the same proportion as the maximum number of Option Securities to be sold by the
Company and each Selling Stockholder and the number of Option Securities to be
sold. The number of Option Securities to be purchased by each Underwriter shall
be the same percentage of the total number of shares of the Option Securities to
be purchased by the several Underwriters as such Underwriter is purchasing of
the Underwritten Securities, subject to such adjustments as you in your absolute
discretion shall make to eliminate any fractional shares.

               3. Delivery and Payment. Delivery of and payment for the
Underwritten Securities and the Option Securities (if the option provided for in
Section 2(b) hereof shall have been exercised on or before the third Business
Day prior to the Closing Date) shall be made at 10:00 AM, New York City time, on
____, 2000, or at such time on such later date not more than three Business Days
after the foregoing date as the Representatives shall designate, which date and
time may be postponed by agreement among the Representatives, the Company and
the Selling Stockholders or as provided in Section 9 hereof (such date and time
of delivery and payment for the Securities being herein called the "Closing
Date"). Delivery of the Securities shall be made to the Representatives for the
respective accounts of the several Underwriters against payment by the several
Underwriters through the Representatives of the respective aggregate purchase
prices of




<PAGE>   14

                                                                             14

the Securities being sold by the Company and each of the Selling Stockholders to
or upon the order of the Company and the Selling Stockholders by wire transfer
payable in same-day funds to the accounts specified by the Company and the
Selling Stockholders. Delivery of the Underwritten Securities and the Option
Securities shall be made through the facilities of The Depository Trust Company
unless the Representatives shall otherwise instruct.

               Each Selling Stockholder will pay all applicable state transfer
taxes, if any, involved in the transfer to the several Underwriters of the
Securities to be purchased by them from such Selling Stockholder and the
respective Underwriters will pay any additional stock transfer taxes involved in
further transfers.

               If the option provided for in Section 2(b) hereof is exercised
after the third Business Day prior to the Closing Date, the Company and the
Selling Stockholders named in Schedule II hereto will deliver the Option
Securities (at the expense of the Company) to the Representatives, at 388
Greenwich Street, New York, New York, on the date specified by the
Representatives (which shall be within three Business Days after exercise of
said option) for the respective accounts of the several Underwriters, against
payment by the several Underwriters through the Representatives of the purchase
price therefor to or upon the order of the Company and the Selling Stockholders
named in Schedule II by wire transfer payable in same-day funds to the accounts
specified by the Company and the Selling Stockholders named in Schedule II
hereto. If settlement for the Option Securities occurs after the Closing Date,
the Company and such Selling Stockholders will deliver to the Representatives on
the settlement date for the Option Securities, and the obligation of the
Underwriters to purchase the Option Securities shall be conditioned upon receipt
of, supplemental opinions, certificates and letters confirming as of such date
the opinions, certificates and letters delivered on the Closing Date pursuant to
Section 6 hereof.

               4. Offering by Underwriters. It is understood that the several
Underwriters propose to offer the Securities for sale to the public as set forth
in the Prospectus.

               5. Agreements.

               (i) The Company agrees with the several Underwriters that:

               (a) The Company will use its best efforts to cause the
          Registration Statement, if not effective at the Execution Time, and
          any amendment thereof, to become effective. Prior to the termination
          of the offering of the Securities, the Company will not file any
          amendment of the Registration Statement or supplement to the
          Prospectus or any Rule 462(b) Registration Statement unless the
          Company has furnished you a copy for your review prior to filing and
          will not file



<PAGE>   15

                                                                             15

          any such proposed amendment or supplement to which you reasonably
          object. Subject to the foregoing sentence, if the Registration
          Statement has become or becomes effective pursuant to Rule 430A, or
          filing of the Prospectus is otherwise required under Rule 424(b), the
          Company will cause the Prospectus, properly completed, and any
          supplement thereto to be filed with the Commission pursuant to the
          applicable paragraph of Rule 424(b) within the time period prescribed
          and will provide evidence satisfactory to the Representatives of such
          timely filing. The Company will promptly advise the Representatives
          (1) when the Registration Statement, if not effective at the Execution
          Time, shall have become effective, (2) when the Prospectus, and any
          supplement thereto, shall have been filed (if required) with the
          Commission pursuant to Rule 424(b) or when any Rule 462(b)
          Registration Statement shall have been filed with the Commission, (3)
          when, prior to termination of the offering of the Securities, any
          amendment to the Registration Statement shall have been filed or
          become effective, (4) of any request by the Commission or its staff
          for any amendment of the Registration Statement, or any Rule 462(b)
          Registration Statement, or for any supplement to the Prospectus or for
          any additional information, (5) of the issuance by the Commission of
          any stop order suspending the effectiveness of the Registration
          Statement or the institution or threatening of any proceeding for that
          purpose and (6) of the receipt by the Company of any notification with
          respect to the suspension of the qualification of the Securities for
          sale in any jurisdiction or the institution or threatening of any
          proceeding for such purpose. The Company will use its best efforts to
          prevent the issuance of any such stop order or the suspension of any
          such qualification and, if issued, to obtain as soon as possible the
          withdrawal thereof.

               (b) If, at any time when a prospectus relating to the Securities
          is required to be delivered under the Act, any event occurs as a
          result of which the Prospectus as then supplemented would include any
          untrue statement of a material fact or omit to state any material fact
          necessary to make the statements therein in the light of the
          circumstances under which they were made not misleading, or if it
          shall be necessary to amend the Registration Statement or supplement
          the Pros pectus to comply with the Act or the rules thereunder, the
          Company promptly will (1) notify the Representatives of any such
          event, (2) prepare and file with the Commission, subject to the second
          sentence of paragraph (i)(a) of this Section 5, an amendment or
          supplement which will correct such statement or omission or effect
          such compliance and (3) supply any supplemented Prospectus to you in
          such quantities as you may reasonably request.

               (c) As soon as practicable, the Company will make generally
          available to its security holders and to the Representatives an
          earnings statement or statements of the Company and its subsidiaries
          which will satisfy the provisions of Section 11(a) of the Act and Rule
          158 under the Act.



<PAGE>   16
                                                                             16

               (d) The Company will furnish to the Representatives and counsel
          for the Underwriters signed copies of the Registration Statement
          (including exhibits thereto) and to each other Underwriter a copy of
          the Registration Statement (without exhibits thereto) and, so long as
          delivery of a prospectus by an Underwriter or dealer may be required
          by the Act, as many copies of each Preliminary Prospectus and the
          Prospectus and any supplement thereto as the Representatives may
          reasonably request.

               (e) The Company will arrange, if necessary, for the qualification
          of the Securities for sale under the laws of such jurisdictions as the
          Representatives may designate and will maintain such qualifications in
          effect so long as required for the distribution of the Securities;
          provided that in no event shall the Company be obligated to qualify to
          do business in any jurisdiction where it is not now so qualified or to
          take any action that would subject it to service of process in suits,
          other than those arising out of the offering or sale of the
          Securities, in any jurisdiction where it is not now so subject or take
          any action which would subject the Company to taxation in any
          jurisdiction where it is not already subject to taxation.

               (f) The Company will not, without the prior written consent of
          Salomon Smith Barney Inc., offer, sell, contract to sell, pledge or
          otherwise dispose of (or enter into any transaction which is designed
          to, or might reasonably be expected to, result in the disposition
          (whether by actual disposition or effective economic disposition due
          to cash settlement or otherwise) by the Company or any affiliate of
          the Company or any person in privity with the Company or any affiliate
          of the Company), directly or indirectly, including the filing (or
          participation in the filing) of a registration statement with the
          Commission in respect of, or establish or increase a put equivalent
          position or liquidate or decrease a call equivalent position within
          the meaning of Section 16 of the Exchange Act, any other shares of
          Common Stock or Class B common stock (together, with the Common Stock,
          the "Capital Stock") or any securities convertible into Capital Stock,
          or exercisable, or exchangeable for, shares of Capital Stock; or
          publicly announce an intention to effect any such transaction, for a
          period of 270 days after the date of this Agreement; provided,
          however, that the Company may grant options to purchase Common Stock
          or issue and sell Common Stock, in each case pursuant to any employee
          or director incentive plan, stock option plan, stock ownership plan,
          stock purchase plan or dividend reinvestment plan of the Company in
          effect at the Execution Time, the Company may issue Common Stock
          issuable upon the conversion of securities or the exercise of options
          outstanding at the Execution Time and the Company may issue Common
          Stock issuable upon the conversion of Class B common stock in
          accordance with the Certificate of Incorporation of the Company.



<PAGE>   17


                                                                             17

               (g) The Company will not take, directly or indirectly, any action
          designed to or which has constituted or which might reasonably be
          expected to cause or result, under the Exchange Act or otherwise, in
          stabilization or manipulation of the price of any security of the
          Company to facilitate the sale or resale of the Securities.

               (h) The Company agrees to pay the costs and expenses relating to
          the following matters: (i) the preparation, printing or reproduction
          and filing with the Commission of the Registration Statement
          (including financial statements and exhibits thereto), each
          Preliminary Prospectus, the Prospectus, and each amendment or
          supplement to any of them; (ii) the printing (or reproduction) and
          delivery (including postage, air freight charges and charges for
          counting and packaging) of such copies of the Registration Statement,
          each Preliminary Prospectus, the Prospectus, and all amendments or
          supplements to any of them, as may, in each case, be reasonably
          requested for use in connection with the offering and sale of the
          Securities; (iii) the preparation, printing, authentication, issuance
          and delivery of certificates for the Securities, including any stamp
          or transfer taxes in connection with the original issuance and sale of
          the Securities; (iv) the printing (or reproduction) and delivery of
          this Agreement, any blue sky memorandum and all other agreements or
          documents printed (or reproduced) and delivered in connection with the
          offering of the Securities; (v) the registration of the Securities
          under the Exchange Act and the listing of the Securities on the New
          York Stock Exchange; (vi) any registration or qualification of the
          Securities for offer and sale under the securities or blue sky laws of
          the several states (including filing fees and the reasonable fees and
          expenses of counsel for the Underwriters relating to such registration
          and qualification); (vii) any filings required to be made with the
          National Association of Securities Dealers, Inc. (including filing
          fees and the reasonable fees and expenses of counsel for the
          Underwriters relating to such filings); (viii) the transportation and
          other expenses incurred by or on behalf of Company representatives in
          connection with presentations to prospective purchasers of the
          Securities; (ix) the fees and expenses of the Company's accountants
          and the fees and expenses of counsel (including local and special
          counsel) for the Company and the Selling Stockholders; and (x) all
          other costs and expenses incident to the performance by the Company
          and the Selling Stockholders of their obligations hereunder; provided,
          however, that the Selling Stockholders agree to pay their
          proportionate share of the underwriting discount or commission, any
          stamp or transfer taxes applicable to their Securities and the fees
          and expenses of counsel (other than counsel retained on behalf of the
          Selling Shareholders by the Company at its expense, as provided in
          (ix) above), accountants and tax advisors retained by such Selling
          Stockholders.

               (i) In connection with the Directed Share Program, the Company
          will ensure that the Directed Shares will be restricted to the extent
          required by the



<PAGE>   18

                                                                             18

          National Association of Securities Dealers, Inc. (the "NASD") or the
          NASD rules from sale, transfer, assignment, pledge or hypothecation
          for a period of three months following the date of the effectiveness
          of the Registration Statement. Salomon Smith Barney Inc. will notify
          the Company as to which Participants will need to be so restricted.
          The Company will direct the removal of such transfer restrictions upon
          the expiration of such period of time.

               (j) The Company will pay all fees and disbursements of counsel
          incurred by the Underwriters in connection with the Directed Share
          Program and stamp duties, similar taxes or duties or other taxes, if
          any, incurred by the Underwriters in connection with the Directed
          Share Program.

               Furthermore, the Company covenants with Salomon Smith Barney Inc.
that the Company will comply with all applicable securities and other applicable
laws, rules and regulations in each foreign jurisdiction in which the Directed
Shares are offered in connection with the Directed Share Program.

               (ii) Each Selling Stockholder agrees with the several
          Underwriters that:

               (a) Such Selling Stockholder will not take any action designed to
          or which has constituted or which might reasonably be expected to
          cause or result, under the Exchange Act or otherwise, in stabilization
          or manipulation of the price of any security of the Company to
          facilitate the sale or resale of the Securities.

               (b) Such Selling Stockholder will advise you promptly, and if
          requested by you, will confirm such advice in writing, so long as
          delivery of a prospectus relating to the Securities by an underwriter
          or dealer may be required under the Act, of (i) any change in
          information in the Registration Statement or the Prospectus relating
          to such Selling Stockholder or (ii) any new material information
          relating to the Company or relating to any matter stated in the
          Prospectus which comes to the attention of such Selling Stockholder.

               (c) Such Selling Stockholder will comply with the agreement
          contained in Section 5(i)(h).

               (d) Such Selling Stockholder shall, at the Execution Time,
          deliver to the Representatives a letter substantially in the form of
          Exhibit A hereto addressed to the Representatives.

               6. Conditions to the Obligations of the Underwriters. The
obligations of the Underwriters to purchase the Underwritten Securities and the
Option Securities, as the case may be, shall be subject to the accuracy of the
representations and warranties on the part of the Company and the Selling
Stockholders contained herein as of the Execution



<PAGE>   19

                                                                             19

Time, the Closing Date and any settlement date pursuant to Section 3 hereof, to
the accuracy of the statements of the Company and the Selling Stockholders made
in any certificates pursuant to the provisions hereof, to the performance by the
Company and the Selling Stockholders of their respective obligations hereunder
and to the following additional conditions:

               (a) If the Registration Statement has not become effective prior
          to the Execution Time, unless the Representatives agree in writing to
          a later time, the Registration Statement will become effective not
          later than (i) 6:00 PM New York City time on the date of determination
          of the public offering price, if such determination occurred at or
          prior to 3:00 PM New York City time on such date or (ii) 9:30 AM on
          the Business Day following the day on which the public offering price
          was determined, if such determination occurred after 3:00 PM New York
          City time on such date; if filing of the Prospectus, or any supplement
          thereto, is required pursuant to Rule 424(b), the Prospectus, and any
          such supplement, will be filed in the manner and within the time
          period required by Rule 424(b); and no stop order suspending the
          effectiveness of the Registration Statement shall have been issued and
          no proceedings for that purpose shall have been instituted or
          threatened.

               (b) Baker Botts L.L.P., counsel for the Company, shall have
          furnished to the Representatives their opinion, dated the Closing Date
          and addressed to the Representatives, to the effect that:

                           (i) the Company has been duly incorporated and is
                  validly existing as a corporation in good standing under the
                  laws of the jurisdiction in which it is chartered or
                  organized, with full corporate power and authority to own or
                  lease, as the case may be, and to operate its properties and
                  conduct its business as described in the Prospectus, and is
                  duly qualified to do business as a foreign corporation and is
                  in good standing under the laws of each jurisdiction set forth
                  on Annex A;

                           (ii) except as otherwise set forth in the Prospectus,
                  all outstanding shares of capital stock of the Subsidiaries
                  are owned by the Company either directly or through wholly
                  owned subsidiaries free and clear of any perfected security
                  interest and, to the knowledge of such counsel, after due
                  inquiry, any other security interest, claim, lien or
                  encumbrance;

                           (iii) (a) the Company's authorized equity
                  capitalization is as set forth in the Prospectus; the capital
                  stock of the Company conforms at to legal matters in all
                  material respects to the description thereof contained in the
                  Prospectus; and (b) the outstanding shares of Common Stock
                  (including the Securities being sold hereunder by the Selling
                  Stockholders) have been


<PAGE>   20

                                                                              20


                  duly and validly authorized and issued and are fully paid and
                  nonassessable; the Securities being sold hereunder by the
                  Company have been duly and validly authorized, and, when
                  issued and delivered to and paid for by the Underwriters
                  pursuant to this Agreement, will be fully paid and
                  nonassessable; the Securities being sold by the Selling
                  Stockholders have been duly authorized for trading on the
                  Nasdaq National Market and the Securities being sold hereunder
                  by the Company have been duly authorized for trading on the
                  Nasdaq National Market; the certificates for the Securities
                  are in valid and sufficient form; the holders of outstanding
                  shares of capital stock of the Company are not entitled to
                  preemptive or, to the knowledge of such counsel after due
                  inquiry, other rights to subscribe for the Securities; and, to
                  the knowledge of such counsel after due inquiry, except as set
                  forth in the Prospectus, no options, warrants or other rights
                  to purchase, agreements or other obligations to issue, or
                  rights to convert any obligations into or exchange any
                  securities for, shares of capital stock of or ownership
                  interests in the Company are outstanding;

                           (iv) to the knowledge of such counsel, there is no
                  pending or threatened action, suit or proceeding by or before
                  any court or governmental agency, authority or body or any
                  arbitrator involving the Company or any of its subsidiaries,
                  including the Foreign Subsidiaries, as defined below, or its
                  or their property of a character required to be dis closed in
                  the Registration Statement which is not adequately disclosed
                  in the Prospectus, and there is no franchise, contract or
                  other document of a character required to be described in the
                  Registration Statement or Prospectus, or to be filed as an
                  exhibit thereto, which is not described or filed as required;
                  and the statements in the Prospectus under the headings "U.S.
                  Tax Consequences to Non-U.S. Holders", "Shares Eligible for
                  Future Sales," "Business-Regulations", "Risk Factors -
                  Limitations on our ability to protect our intellectual
                  property rights could cause a loss in revenues and any
                  competitive advantage we hold, - Environmental compliance
                  costs and liabilities could have a material adverse effect on
                  our financial condition, - Provisions of our charter, bylaws
                  and our note agreement may discourage acquisition bids and
                  cause our common stock to trade at a discount to where it
                  otherwise may trade, and - Future sales of our common stock
                  could adversely affect its market price," insofar as such
                  statements summarize legal matters, agreements, documents, or
                  proceedings discussed therein, are accurate and fair summaries
                  of such legal matters, agreements, documents or proceedings;

                           (v) the Registration Statement has become effective
                  under the Act; any required filing of the Prospectus, and any
                  supplements thereto, pursuant to Rule 424(b) has been made in
                  the manner and within the time



<PAGE>   21

                                                                              21

                  period required by Rule 424(b); to the knowledge of such
                  counsel, no stop order suspending the effectiveness of the
                  Registration Statement has been issued, no proceedings for
                  that purpose have been instituted or threatened and the
                  Registration Statement and the Prospectus (other than the
                  financial statements and other financial information contained
                  therein, as to which such counsel need express no opinion)
                  comply as to form in all material respects with the applicable
                  requirements of the Act and the rules thereunder;

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

                           (vii) the Company is not and, after giving effect to
                  the offering and sale of the Securities and the application of
                  the proceeds thereof as described in the Prospectus, will not
                  be, an "investment company" as defined in the Investment
                  Company Act of 1940, as amended;

                           (viii) no consent, approval, authorization, filing
                  with or order of any court or governmental agency or body is
                  required in connection with the transactions contemplated
                  herein, except such as have been obtained under the Act and
                  such as may be required under the blue sky laws of any
                  jurisdiction in connection with the purchase and distribution
                  of the Securities by the Underwriters in the manner
                  contemplated in this Agreement and in the Prospectus and such
                  other approvals (specified in such opinion) as have been
                  obtained;

                           (ix) neither the issue and sale of the Securities,
                  nor the consummation of any other of the transactions herein
                  contemplated nor the fulfillment of the terms hereof will
                  conflict with, result in a breach or violation of or
                  imposition of any lien, charge or encumbrance upon any
                  property or assets of the Company or its Named Subsidiaries
                  pursuant to, (i) the charter or by-laws of the Company or its
                  Named Subsidiaries, (ii) the terms of any indenture, contract,
                  lease, mortgage, deed of trust, note agreement, loan agreement
                  or other agreement, obligation, condition, covenant or
                  instrument to which the Company or its Named Subsidiaries is a
                  party or bound or to which its or their property is subject
                  and which is listed on Annex B, or (iii) any statute, law,
                  rule, regulation, judgment, order or decree applicable to the
                  Company or its Named Subsidiaries of any court, regulatory
                  body, administrative agency, governmental body, arbitrator or
                  other authority having jurisdiction over the Company or its
                  Named Subsidiaries or any of its or their properties; and



<PAGE>   22


                                                                              22

                           (x) Except for the rights of the Selling Stockholders
                  to sell the Securities set forth in Schedule II, to the
                  knowledge of such counsel after due inquiry, no holders of
                  securities of the Company have rights to the registration of
                  such securities under the Registration Statement.

                  In addition, such counsel shall state that in connection with
         the preparation of the Registration Statement and the Prospectus, such
         counsel has participated in various discussions and meetings with
         officers and other representatives of the Company, representatives of
         the independent public accountants of the Company and representatives
         of the Underwriters at which the contents of the Registration Statement
         and Prospectus were discussed and, although such counsel is not passing
         upon and does not assume responsibility for the accuracy and
         completeness of the statements contained in the Registration Statement
         or Prospectus (except as and to the extent stated in subparagraph
         (iii)(a) and (iv) above), on the basis of the foregoing nothing has
         come to the attention of such counsel that causes it to believe that
         the Registration Statement (other than the (i) financial statements and
         related schedules contained therein or omitted therefrom (including the
         notes to the financial statements and auditors' reports on the
         financial statements) and (ii) the other financial information
         contained therein or omitted therefrom) at the time such Registration
         Statement became effective or was last deemed amended 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 (other than (i) the
         financial statements and related schedules contained therein or omitted
         therefrom (including the notes to the financial statements and the
         auditors' reports on the financial statements) and (ii) the other
         financial information contained therein or omitted therefrom, as to
         which such counsel need not express an opinion) at the date of such
         Prospectus and on the Closing Date, and as of the time of purchase or
         additional time of purchase, 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, in the light of the circumstances under which they were made,
         not misleading.

                  In rendering such opinion, such counsel may (A) rely as to
         matters of fact, to the extent they deem proper, on certificates of
         responsible officers of the Company and public officials. References to
         the Prospectus in this paragraph (b) include any supplements thereto at
         the Closing Date and (B) limit their opinion to the Delaware General
         Corporation Law, the general contract law of the State of New York, the
         laws of the United States of America and the laws of the State of
         Texas, in each case as in effect on the date of such opinion.



<PAGE>   23

                                                                             23

                  (c) Shook Lin & Bok, foreign counsel for the Company, shall
         have furnished to the Representatives their opinion, dated the Closing
         Date and addressed to the Representatives, to the effect that:

                           (i) Hydril Private Limited has been duly incorporated
                  and is validly existing as a corporation in good standing
                  under the laws of the jurisdiction in which it is chartered or
                  organized, with full corporate power and authority to own or
                  lease, as the case may be, and to operate its properties and
                  conduct its business as described in the Prospectus, and is
                  duly qualified to do business as a foreign corporation and is
                  in good standing under the laws of each jurisdiction set forth
                  on Annex A;

                           (ii) all the outstanding shares of capital stock of
                  Hydril Private Limited have been duly and validly authorized
                  and issued and are fully paid and nonassessable, and, except
                  as otherwise set forth in the Prospectus, all outstanding
                  shares of capital stock of Hydril Private Limited are owned by
                  the Company either directly or through wholly owned
                  subsidiaries free and clear of any perfected security interest
                  and, to the knowledge of such counsel, after due inquiry, any
                  other security interest, claim, lien or encumbrance;

                           (iii) neither the issue and sale of the Securities,
                  nor the consummation of any other of the transactions herein
                  contemplated nor the fulfillment of the terms hereof will
                  conflict with, result in a breach or violation of or
                  imposition of any lien, charge or encumbrance upon any
                  property or assets of Hydril Private Limited pursuant to, (i)
                  the charter or by-laws of Hydril Private Limited, (ii) the
                  terms of any indenture, contract, lease, mortgage, deed of
                  trust, note agreement, loan agreement or other agreement,
                  obligation, condition, covenant or instrument to which Hydril
                  Private Limited is a party or bound or to which their property
                  is subject and which is listed on Annex B, or (iii) any
                  statute, law, rule, regulation, judgment, order or decree
                  applicable to Hydril Private Limited of any court, regulatory
                  body, administrative agency, governmental body, arbitrator or
                  other authority having jurisdiction over Hydril Private
                  Limited or any of its properties.

                  (d) Baker & McKenzie, foreign counsel for the Company, shall
         have furnished to the Representatives their opinion, dated the Closing
         Date and addressed to the Representatives, to the effect that:

                           (i) [non- U.S. subsidiary] (the "Foreign Subsidiary",
                  and together with Hydril Private Limited, the "Foreign
                  Subsidiaries") has been duly incorporated and is validly
                  existing as a corporation in good standing



<PAGE>   24

                                                                             24

                  under the laws of the jurisdiction in which it is chartered or
                  organized, with full corporate power and authority to own or
                  lease, as the case may be, and to operate its properties and
                  conduct its business as described in the Prospectus, and is
                  duly qualified to do business as a foreign corporation and is
                  in good standing under the laws of each jurisdiction set forth
                  on Annex A;

                           (ii) all the outstanding shares of capital stock of
                  the Foreign Subsidiary have been duly and validly authorized
                  and issued and are fully paid and nonassessable, and, except
                  as otherwise set forth in the Prospectus, all outstanding
                  shares of capital stock of the Foreign Subsidiary are owned by
                  the Company either directly or through wholly owned
                  subsidiaries free and clear of any perfected security interest
                  and, to the knowledge of such counsel, after due inquiry, any
                  other security interest, claim, lien or encumbrance;

                           (iii) neither the issue and sale of the Securities,
                  nor the consummation of any other of the transactions herein
                  contemplated nor the fulfillment of the terms hereof will
                  conflict with, result in a breach or violation of or
                  imposition of any lien, charge or encumbrance upon any
                  property or assets of the Foreign Subsidiary pursuant to, (i)
                  the charter or by-laws of the Foreign Subsidiary, (ii) the
                  terms of any indenture, contract, lease, mortgage, deed of
                  trust, note agreement, loan agreement or other agreement,
                  obligation, condition, covenant or instrument to which the
                  Foreign Subsidiary is a party or bound or to which their
                  property is subject and which is listed on Annex B, or (iii)
                  any statute, law, rule, regulation, judgment, order or decree
                  applicable to the Foreign Subsidiary of any court, regulatory
                  body, administrative agency, governmental body, arbitrator or
                  other authority having jurisdiction over the Foreign
                  Subsidiary or any of its properties.

                  (e) Rosenthal & Osha L.L.P., intellectual property counsel for
         the Company, shall have furnished to the Representatives their opinion,
         dated the Closing Date and addressed to the Representatives, to the
         effect that:

                           (i) the Company owns or has obtained licenses for all
                  applications relating to the Intellectual Property (as defined
                  below) owned or used by or licensed to the Company;
                  "Intellectual Property" means patents, patent applications,
                  trademarks, service marks, trade secrets and other proprietary
                  information and materials;

                           (ii) except as described in the Prospectus, (A) there
                  are no rights of third parties to any Intellectual Property
                  owned by or licensed to the



<PAGE>   25
                                                                              25


                  Company or that is necessary for the conduct of its business;
                  (B) there is no infringement by third parties of any such
                  Intellectual Property; (C) there is no pending or threatened
                  action, suit, proceeding or claim by others challenging the
                  rights of the Company in or to such Intellectual Property, and
                  such counsel is unaware of any facts which would form a
                  reasonable basis for any such claim; (D) there is no pending
                  or threatened action, suit, proceeding or claim by others
                  challenging the validity or scope of such Intellectual
                  Property, and such counsel is unaware of any facts which would
                  form a reasonable basis for any such claim; (E) there is no
                  pending or threatened action, suit, proceeding or claim by
                  others that the Company infringes or otherwise violates any
                  patent, trademark, copyright, trade secret or other
                  proprietary right of others, and such counsel is unaware of
                  any facts which would form a reasonable basis for any such
                  claim; (F) there is no patent or patent application which
                  contains claims that dominate or may dominate any such
                  Intellectual Property or that interferes with the issued or
                  pending claims of any such Intellectual Property; and (G)
                  there is no prior art that may render any patent held by the
                  Company invalid or any patent application held by the Company
                  unpatentable which has not been disclosed to the U.S. Patent
                  and Trademark Office;

                           (iii)(A) the statements in the Prospectus under the
                  captions "Risk Factors -- Risks Relating to Our Business --
                  Limitations on our ability to protect our intellectual
                  property rights could cause a loss in revenues and any
                  competitive advantage we hold" and "Business -- Our Emphasis
                  on Research and Development" and (B) other references in the
                  Prospectus to patent and licensing matters (collectively, the
                  "Statements"), insofar as such Statements constitute a summary
                  of legal matters, documents or proceedings referred to
                  therein, are accurate and fairly present the information
                  purported to be shown;

                           (iv) the Statements, as of the date thereof, do not
                  contain any untrue statement of a material fact or omit to
                  state a material fact necessary to make such Statements not
                  misleading in the context in which they are made; and

                           (v) Schedule A to such opinion is a listing of all of
                  the Company's Intellectual Property, and, with respect to the
                  patent applications listed on such Schedule A, such counsel is
                  unaware of any defects in the prosecution of any such
                  applications that would irrevocably foreclose pursuit of the
                  patent rights thereunder.

<PAGE>   26
                                                                             26

                  (f) O'Melveny and Myers LLP, counsel for the Selling
         Stockholders shall have furnished to the Representatives their opinion
         dated the Closing Date and addressed to the Representatives, to the
         effect that:

                           (i) this Agreement and the Custody Agreement and
                  Power of Attorney have been duly authorized, executed and
                  delivered by each of the Selling Stockholders listed on
                  Schedule IV hereto (collectively, the "Named Stockholders"),
                  the Custody Agreement is valid and binding on the Named
                  Stockholders and each Named Stockholder has full legal right
                  and authority to sell, transfer and deliver in the manner
                  provided in this Agreement and the Custody Agreement the
                  Securities being sold by such Named Stockholder hereunder;

                           (ii) assuming that each Underwriter acquires its
                  interest in the Securities it has purchased from each Selling
                  Stockholder without notice of any adverse claim (within the
                  meaning of Section 8-105 of the [New York] [California]
                  Uniform Commercial Code), each Underwriter that has purchased
                  such Securities delivered on the Closing Date to The
                  Depository Trust Company or other securities intermediary by
                  making payment therefor as provided herein, and that has had
                  such Securities credited to the securities account or accounts
                  of such Underwriters maintained with The Depository Trust
                  Company or such other securities intermediary will have
                  acquired a security entitlement (within the meaning of Section
                  8-102(a)(17) of the [New York] [California] Uniform Commercial
                  Code) to such Securities purchased by such Underwriter, and no
                  action based on an adverse claim (within the meaning of
                  Section 8-105 of the [New York] [California] Uniform
                  Commercial Code) may be asserted against such Underwriter with
                  respect to such Securities; and based solely on an examination
                  of the stock ledger of the Company and the certificates
                  representing such Securities, each Selling Stockholder is the
                  record and beneficial owner of the Securities to be sold by it
                  hereunder free and clear of all liens, encumbrances, equities
                  and claims, other than pursuant to the Custody Agreement;

                           (iii) no consent, approval, authorization or order of
                  any court or governmental agency or body is required for the
                  consummation by any Named Stockholder of the transactions
                  contemplated herein, except such as may have been obtained
                  under the Act and such as may be required under the blue sky
                  laws of any jurisdiction in connection with the purchase and
                  distribution of the Securities by the Underwriters and such
                  other approvals (specified in such opinion) as have been
                  obtained; and


<PAGE>   27
                                                                             27

                           (iv) neither the sale of the Securities being sold by
                  any Named Stockholder nor the consummation of any other of the
                  transactions herein contemplated by any Named Stockholder or
                  the fulfillment of the terms hereof by any Named Stockholder
                  will conflict with, result in a breach or violation of, or
                  constitute a default under any law or, as applicable, the
                  charter or By-laws of the Named Stockholder or the terms of
                  any indenture or other agreement or instrument known to such
                  counsel and to which any Named Stockholder or, as applicable,
                  any of its subsidiaries is a party or bound, or any judgment,
                  order or decree known to such counsel to be applicable to any
                  Named Stockholder or, as applicable, any of its subsidiaries
                  of any court, regulatory body, administrative agency,
                  governmental body or arbitrator having jurisdiction over any
                  Named Stockholder or, as applicable, any of its subsidiaries.

                  In rendering such opinion, such counsel may rely (A) as to
         matters involving the application of laws of any jurisdiction other
         than the States of California, New York and, the General Corporation
         Law of the State of Delaware or the Federal laws of the United States,
         to the extent they deem proper and specified in such opinion, upon the
         opinion of other counsel of good standing whom they believe to be
         reliable and who are satisfactory to counsel for the Underwriters, and
         (B) as to matters of fact, to the extent they deem proper, on
         certificates of the Selling Stockholders or responsible officers
         thereof and public officials.

                  (g) Gary Hanson, Esq., counsel for Pepperdine University (the
         "University"), shall have furnished to the Representatives their
         opinion dated the Closing Date and addressed to the Representatives, to
         the effect that:

                           (i) this Agreement and the Custody Agreement and
                  Power of Attorney have been duly authorized, executed and
                  delivered by the University, the Custody Agreement is valid
                  and binding on the University and the University has full
                  legal right and authority to sell, transfer and deliver in the
                  manner provided in this Agreement and the Custody Agreement
                  the Securities being sold by the University hereunder;

                           (ii) no consent, approval, authorization or order of
                  any court or governmental agency or body is required for the
                  consummation by the University of the transactions
                  contemplated herein, except such as may have been obtained
                  under the Act and such as may be required under the blue sky
                  laws of any jurisdiction in connection with the purchase and
                  distribution of the Securities by the Underwriters and such
                  other approvals (specified in such opinion) as have been
                  obtained; and



<PAGE>   28
                                                                             28

                           (iii) neither the sale of the Securities being sold
                  by the University nor the consummation of any other of the
                  transactions herein contemplated by the University or the
                  fulfillment of the terms hereof by the University will
                  conflict with, result in a breach or violation of, or
                  constitute a default under any law or, as applicable, the
                  charter or By-laws of the University or the terms of any
                  indenture or other agreement or instrument known to such
                  counsel and to which the University or, as applicable, any of
                  its affiliates is a party or bound, or any judgment, order or
                  decree known to such counsel to be applicable to the
                  University or, as applicable, any of its affiliates of any
                  court, regulatory body, administrative agency, governmental
                  body or arbitrator having jurisdiction over the University or,
                  as applicable, any of its affiliates.

                  In rendering such opinion, such counsel may rely (A) as to
         matters involving the application of laws of any jurisdiction other
         than the States of California, New York and, the General Corporation
         Law of the State of Delaware or the Federal laws of the United States,
         to the extent they deem proper and specified in such opinion, upon the
         opinion of other counsel of good standing whom they believe to be
         reliable and who are satisfactory to counsel for the Underwriters, and
         (B) as to matters of fact, to the extent they deem proper, on
         certificates of the University or responsible officers thereof and
         public officials.

                  (h) Allard, Shelton & O'Connor, counsel for Pomona College
         (the "College"), shall have furnished to the Representatives their
         opinion dated the Closing Date and addressed to the Representatives, to
         the effect that:

                           (i) this Agreement and the Custody Agreement and
                  Power of Attorney have been duly authorized, executed and
                  delivered by the College, the Custody Agreement is valid and
                  binding on the College and the College has full legal right
                  and authority to sell, transfer and deliver in the manner
                  provided in this Agreement and the Custody Agreement the
                  Securities being sold by the College hereunder;

                           (ii) no consent, approval, authorization or order of
                  any court or governmental agency or body is required for the
                  consummation by the College of the transactions contemplated
                  herein, except such as may have been obtained under the Act
                  and such as may be required under the blue sky laws of any
                  jurisdiction in connection with the purchase and distribution
                  of the Securities by the Underwriters and such other approvals
                  (specified in such opinion) as have been obtained; and

                           (iii) neither the sale of the Securities being sold
                  by the College nor the consummation of any other of the
                  transactions herein contemplated by


<PAGE>   29

                                                                              29

                  the College or the fulfillment of the terms hereof by the
                  College will conflict with, result in a breach or violation
                  of, or constitute a default under any law or, as applicable,
                  the charter or By-laws of the College or the terms of any
                  indenture or other agreement or instrument known to such
                  counsel and to which the College or, as applicable, any of its
                  affiliates is a party or bound, or any judgment, order or
                  decree known to such counsel to be applicable to the College
                  or, as applicable, any of its affiliates of any court,
                  regulatory body, administrative agency, governmental body or
                  arbitrator having jurisdiction over the College or, as
                  applicable, any of its affiliates.

                  In rendering such opinion, such counsel may rely (A) as to
         matters involving the application of laws of any jurisdiction other
         than the States of California, New York and, the General Corporation
         Law of the State of Delaware or the Federal laws of the United States,
         to the extent they deem proper and specified in such opinion, upon the
         opinion of other counsel of good standing whom they believe to be
         reliable and who are satisfactory to counsel for the Underwriters, and
         (B) as to matters of fact, to the extent they deem proper, on
         certificates of the College or responsible officers thereof and public
         officials.

                  (i) The Representatives shall have received from Cravath,
         Swaine & Moore, counsel for the Underwriters, such opinion or opinions,
         dated the Closing Date and addressed to the Representatives, with
         respect to the issuance and sale of the Securities, the Registration
         Statement, the Prospectus (together with any supplement thereto) and
         other related matters as the Representatives may reasonably require,
         and the Company and each Selling Stockholder shall have furnished to
         such counsel such documents as they request for the purpose of enabling
         them to pass upon such matters.

                  (j) The Company shall have furnished to the Representatives a
         certificate of the Company, signed by the Chairman of the Board or the
         President and the principal financial or accounting officer of the
         Company, dated the Closing Date, to the effect that the signers of such
         certificate have carefully examined the Registration Statement, the
         Prospectus, any supplements to the Prospectus and this Agreement and
         that:

                           (i) the representations and warranties of the Company
                  in this Agreement are true and correct on and as of the
                  Closing Date with the same effect as if made on the Closing
                  Date and the Company has complied with all the agreements and
                  satisfied all the conditions on its part to be performed or
                  satisfied at or prior to the Closing Date;


<PAGE>   30
                                                                              30

                           (ii) no stop order suspending the effectiveness of
                  the Registration Statement has been issued and no proceedings
                  for that purpose have been instituted or, to the Company's
                  knowledge, threatened; and

                           (iii) since the date of the most recent financial
                  statements included in the Prospectus (exclusive of any
                  supplement thereto), there has been no material adverse effect
                  on the condition (financial or otherwise), prospects,
                  earnings, business or properties of the Company and its
                  subsidiaries, taken as a whole, whether or not arising from
                  transactions in the ordinary course of business, except as set
                  forth in or contemplated in the Prospectus (exclusive of any
                  supplement thereto).

                  (k) Each Selling Stockholder shall have furnished to the
         Representatives a certificate, signed by such Selling Stockholder or
         the Chairman of the Board or the President and the principal financial
         or accounting officer thereof, dated the Closing Date, to the effect
         that the representations and warranties of such Selling Stockholder in
         this Agreement are true and correct in all material respects on and as
         of the Closing Date to the same effect as if made on the Closing Date.

                  (l) The Representatives shall have received certified copies
         of the charter, bylaws or any other constitutive documents of each
         Selling Stockholder listed on Schedule V hereto as well as certified
         copies of any corporate action, such as resolutions, or any other
         action authorizing the consummation of the transactions contemplated
         herein and the fulfillment of the terms hereof by such Selling
         Stockholder.

                  (m) Deloitte & Touche LLP shall have furnished to the
         Representatives letters, at the Execution Time and at the Closing Date,
         dated respectively as of the Execution Time and as of the Closing Date,
         in form and substance satisfactory to the Representatives, confirming
         that they are independent accountants within the meaning of the Act and
         the applicable rules and regulations adopted by the Commission
         thereunder and that they have performed a review of the unaudited
         interim financial information of the Company for the six-month period
         ended June 30, 2000 and as at June 30, 2000, in accordance with
         Statement on Auditing Standards No. 71, and stating in effect that:

                           (i) in their opinion the audited financial statements
                  and financial statement schedules included in the Registration
                  Statement and the Prospectus and reported on by them comply as
                  to form in all material respects with the applicable
                  accounting requirements of the Act and the related rules and
                  regulations adopted by the Commission;


<PAGE>   31
                                                                              31

                           (ii) on the basis of a reading of the latest
                  unaudited financial statements made available by the Company
                  and its subsidiaries; their limited review, in accordance with
                  standards established under Statement on Auditing Standards
                  No. 71, of the unaudited interim financial information for the
                  six-month period ended June 30, 2000, and as at June 30, 2000;
                  carrying out certain specified procedures (but not an
                  examination in accordance with generally accepted auditing
                  standards) which would not necessarily reveal matters of
                  significance with respect to the comments set forth in such
                  letter; a reading of the minutes of the meetings of the
                  stockholders, directors and all committees of the Company and
                  the Subsidiaries; and inquiries of certain officials of the
                  Company who have responsibility for financial and accounting
                  matters of the Company and its subsidiaries as to transactions
                  and events subsequent to December 31, 1999, nothing came to
                  their attention which caused them to believe that:

                                    (1) any unaudited financial statements
                           included in the Registration Statement and the
                           Prospectus do not comply as to form in all material
                           respects with applicable accounting requirements of
                           the Act and with the related rules and regulations
                           adopted by the Commission with respect to
                           registration statements on Form S-1; and said
                           unaudited financial statements are not in conformity
                           with generally accepted accounting principles applied
                           on a basis substantially consistent with that of the
                           audited financial statements included in the
                           Registration Statement and the Prospectus;

                                    (2) with respect to the period subsequent to
                           June 30, 2000, there were any changes, at a specified
                           date not more than five days prior to the date of the
                           letter, in the long-term debt of the Company and its
                           subsidiaries or capital stock of the Company or
                           decreases in the stockholders' equity of the Company
                           or decreases in working capital of the Company and
                           its subsidiaries as compared with the amounts shown
                           on the June 30, 2000, consolidated balance sheet
                           included in the Registration Statement and the
                           Prospectus, or for the period from July 1, 2000 to
                           such specified date there were any decreases, as
                           compared with the corresponding period in the
                           preceding [year] [quarter] in revenues or increases
                           in gross loss, operating loss or in total or per
                           share amounts of net loss of the Company and its
                           subsidiaries, except in all instances for changes or
                           decreases set forth in such letter, in which case the
                           letter shall be accompanied by an explanation by the
                           Company as to the


<PAGE>   32
                                                                              32


                           significance thereof unless said explanation is not
                           deemed necessary by the Representatives;

                                    (3) the information included in the
                           Registration Statement and Prospectus in response to
                           Regulation S-K, Item 301 (Selected Financial Data),
                           Item 302 (Supplementary Financial Information), and
                           Item 402 (Executive Compensation) is not in
                           conformity with the applicable disclosure
                           requirements of Regulation S-K; and

                           (iii) they have performed certain other specified
                  procedures as a result of which they determined that certain
                  information of an accounting, financial or statistical nature
                  (which is limited to accounting, financial or statistical
                  information derived from the general accounting records of the
                  Company and its subsidiaries) set forth in the Registration
                  Statement and the Prospectus agrees with the accounting
                  records of the Company and its subsidiaries, excluding any
                  questions of legal interpretation.

                  References to the Prospectus in this paragraph (h) include any
                  supplement thereto at the date of the letter.

                  The Company shall have received from Deloitte & Touche LLP
         (and furnished to the Representatives) a report with respect to a
         review of unaudited interim financial information of the Company for
         the eight quarters ending December 31, 1999, in accordance with
         Statement on Auditing Standards No. 71.

                  (n) Subsequent to the Execution Time or, if earlier, the dates
         as of which information is given in the Registration Statement
         (exclusive of any amendment thereof) and the Prospectus (exclusive of
         any supplement thereto), there shall not have been (i) any change or
         decrease specified in the letter or letters referred to in paragraph
         (h) of this Section 6 or (ii) any change, or any development involving
         a prospective change, in or affecting the condition (financial or
         otherwise), earnings, business or properties of the Company and its
         subsidiaries taken as a whole, whether or not arising from transactions
         in the ordinary course of business, except as set forth in or
         contemplated in the Prospectus (exclusive of any supplement thereto)
         the effect of which, in any case referred to in clause (i) or (ii)
         above, is, in the sole judgment of the Representatives, so material and
         adverse as to make it impractical or inadvisable to proceed with the
         offering or delivery of the Securities as contemplated by the
         Registration Statement (exclusive of any amendment thereof) and the
         Prospectus (exclusive of any supplement thereto).

                  (o) The Securities shall have been duly authorized for trading
         on the Nasdaq National Market, and satisfactory evidence of such
         actions shall have been provided to the Representatives.


<PAGE>   33
                                                                              33


                  (p) At the Execution Time, the Company shall have furnished to
         the Representatives a letter substantially in the form of Exhibit A
         hereto from each officer and director of the Company, the relatives of
         Frank R. Seaver and from each stockholder named in Schedule III hereto
         addressed to the Representatives.

                  If any of the conditions specified in this Section 6 shall not
have been fulfilled in all material respects when and as provided in this
Agreement, or if any of the opinions and certificates mentioned above or
elsewhere in this Agreement shall not be in all material respects reasonably
satisfactory in form and substance to the Representatives and counsel for the
Underwriters, this Agreement and all obligations of the Underwriters hereunder
may be canceled at, or at any time prior to, the Closing Date by the
Representatives. Notice of such cancellation shall be given to the Company and
each Selling Stockholder in writing or by telephone or facsimile confirmed in
writing.

                  The documents required to be delivered by this Section 6 shall
be delivered at the office of Cravath, Swaine & Moore, counsel for the
Underwriters, at 825 Eighth Avenue, New York, New York 10019, on the Closing
Date.

                  7. Reimbursement of Underwriters' Expenses. If the sale of the
Securities provided for herein is not consummated because any condition to the
obligations of the Underwriters set forth in Section 6 hereof is not satisfied,
because of any termination pursuant to Section 10 hereof or because of any
refusal, inability or failure on the part of the Company or any Selling
Stockholders to perform any agreement herein or comply with any provision hereof
other than by reason of a default by any of the Underwriters, the Company will
reimburse the Underwriters severally through Salomon Smith Barney on demand for
all out-of-pocket expenses (including reasonable fees and disbursements of
counsel) that shall have been incurred by them in connection with the proposed
purchase and sale of the Securities. If the Company is required to make any
payments to the Underwriters under this Section 7 because of any Selling
Stockholder's refusal, inability or failure to satisfy any condition to the
obligations of the Underwriters set forth in Section 6, the Selling Stockholders
so refusing, unable or failing to satisfy any such condition pro rata in
proportion to the percentage of Securities to be sold by each shall reimburse
the Company on demand for all amounts so paid unless such refusal, inability or
failure to satisfy any such condition is attributable to any action or inaction
by the Company which makes the satisfaction of such condition commercially
unreasonable.

                  8. Indemnification and Contribution. (a) The Company agrees to
indemnify and hold harmless each Underwriter, the directors, officers, employees
and agents of each Underwriter and each person who controls any Underwriter
within the meaning of either the Act or the Exchange Act against any and all
losses, claims, damages or liabilities, joint or several, to which they or any
of them may become subject under the Act, the Exchange Act or other Federal or
state statutory law or regulation, at common law or otherwise, insofar as such
losses, claims, damages or liabilities (or


<PAGE>   34
                                                                              34


actions in respect thereof) arise out of or are based upon any untrue statement
or alleged untrue statement of a material fact contained in the registration
statement for the registration of the Securities as originally filed or in any
amendment thereof, or in any Preliminary Prospectus or the Prospectus, or in any
amendment thereof 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
agrees to reimburse each such indemnified party, as incurred, for any legal or
other expenses reasonably incurred by them in connection with investigating or
defending any such loss, claim, damage, liability or action; provided, however,
that the Company will 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 any such untrue
statement or alleged untrue statement or omission or alleged omission made
therein in reliance upon and in conformity with written information furnished to
the Company by or on behalf of any Underwriter through the Representatives
specifically for inclusion therein; provided further, that with respect to any
untrue statement or omission of material fact made in any Preliminary
Prospectus, the indemnity agreement contained in this Section 8(a) shall not
inure to the benefit of any Underwriter from whom the person asserting any such
loss, claim, damage or liability purchased the securities concerned, to the
extent that any such loss, claim, damage or liability of such Underwriter occurs
under the circumstance where it shall have been determined by a court of
competent jurisdiction by final and nonappealable judgment that (w) the Company
had previously furnished copies of the Prospectus to the Representatives, (x)
delivery of the Prospectus was required by the Act to be made to such person,
(y) the untrue statement or omission of a material fact contained in the
Preliminary Prospectus was corrected in the Prospectus and (z) there was not
sent or given to such person, at or prior to the written confirmation of the
sale of such securities to such person, a copy of the Prospectus. This indemnity
agreement will be in addition to any liability which the Company may otherwise
have.

                  (b) The Company agrees to indemnify and hold harmless Salomon
Smith Barney Inc., the directors, officers, employees and agents of Salomon
Smith Barney Inc. and each person, who controls Salomon Smith Barney Inc. within
the meaning of either the Act or the Exchange Act ("Salomon Smith Barney Inc.
Entities"), from and against any and all losses, claims, damages and liabilities
to which they may become subject under the Act, the Exchange Act or other
Federal or state statutory law or regulation, at common law or otherwise
(including, without limitation, any legal or other expenses reasonably incurred
in connection with defending or investigating any such action or claim), insofar
as such losses, claims damages or liabilities (or actions in respect thereof)
(i) arise out of or are based upon any untrue statement or alleged untrue
statement of a material fact contained in the prospectus wrapper material
prepared by or with the consent of the Company for distribution in foreign
jurisdictions in connection with the Directed Share Program attached to the
Prospectus or any preliminary prospectus, 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 statement therein, when considered

<PAGE>   35
                                                                              35


in conjunction with the Prospectus or any applicable preliminary prospectus, not
misleading; (ii) caused by the failure of any Participant to pay for and accept
delivery of the securities which immediately following the Effective Date of the
Registration Statement, were subject to a properly confirmed agreement to
purchase; or (iii) related to, arising out of, or in connection with the
Directed Share Program, provided that, the Company will 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 any such untrue statement or alleged untrue statement or
omission or alleged omission made therein in reliance upon and in conformity
with written information furnished to the Company by or on behalf of Salomon
Smith Barney Inc. specifically for inclusion therein.

                  (c) Each Selling Stockholder severally agrees to indemnify and
hold harmless the Company, each of its directors, each of its officers who signs
the Registration Statement, each Underwriter, the directors, officers, employees
and agents of each Underwriter and each person who controls the Company or any
Underwriter within the meaning of either the Act or the Exchange Act and each
other Selling Stockholder, if any, to the same extent as the foregoing indemnity
from the Company to each Underwriter, but only with reference to written
information furnished to the Company by or on behalf of such Selling Stockholder
specifically for inclusion in the documents referred to in the foregoing
indemnity. This indemnity agreement will be in addition to any liability which
any Selling Stockholder may otherwise have.

                  (d) Each Underwriter severally and not jointly agrees to
indemnify and hold harmless the Company, each of its directors, each of its
officers who signs the Registration Statement, and each person who controls the
Company within the meaning of either the Act or the Exchange Act and each
Selling Stockholder, each of its officers, directors and each person who
controls such Selling Stockholder within the meaning of the Act, to the same
extent as the foregoing indemnity to each Underwriter, but only with reference
to written information relating to such Underwriter furnished to the Company by
or on behalf of such Underwriter through the Representatives specifically for
inclusion in the documents referred to in the foregoing indemnity. This
indemnity agreement will be in addition to any liability which any Underwriter
may otherwise have. The Company and each Selling Stockholder acknowledge that
the statements set forth in the last paragraph of the cover page regarding
delivery of the Securities and, under the heading "Underwriting" or "Plan of
Distribution", (i) the list of underwriters and their respective participation
in the sale of the Securities, (ii) the sentences related to concessions and
reallowances and (iii) the paragraph related to stabilization, syndicate
covering transactions and penalty bids in any Preliminary Prospectus and the
Prospectus constitute the only information furnished in writing by or on behalf
of the several Underwriters for inclusion in any Preliminary Prospectus or the
Prospectus.

                  (e) Promptly after receipt by an indemnified party under this
Section 8 of notice of the commencement of any action, such indemnified party
will, if a claim in

<PAGE>   36
                                                                              36


respect thereof is to be made against the indemnifying party under this Section
8, notify the indemnifying party in writing of the commencement thereof; but the
failure so to notify the indemnifying party (i) will not relieve it from
liability under paragraph (a), (b), (c) or (d) above unless and to the extent it
did not otherwise learn of such action and such failure results in the
forfeiture by the indemnifying party of substantial rights and defenses and (ii)
will not, in any event, relieve the indemnifying party from any obligations to
any indemnified party other than the indemnification obligation provided in
paragraph (a), (b), (c) or (d) above. The indemnifying party shall be entitled
to appoint counsel of the indemnifying party's choice at the indemnifying
party's expense to represent the indemnified party in any action for which
indemnification is sought (in which case the indemnifying party shall not
thereafter be responsible for the fees and expenses of any separate counsel
retained by the indemnified party or parties except as set forth below);
provided, however, that such counsel shall be satisfactory to the indemnified
party. Notwithstanding the indemnifying party's election to appoint counsel to
represent the indemnified party in an action, the indemnified party shall have
the right to employ separate counsel (including local counsel), and the
indemnifying party shall bear the reasonable fees, costs and expenses of such
separate counsel if (i) the use of counsel chosen by the indemnifying party to
represent the indemnified party would present such counsel with a conflict of
interest, (ii) the actual or potential defendants in, or targets of, any such
action include both the indemnified party and the indemnifying party and the
indemnified party shall have reasonably concluded that there may be legal
defenses available to it and/or other indemnified parties which are different
from or additional to those available to the indemnifying party, (iii) the
indemnifying party shall not have employed counsel reasonably satisfactory to
the indemnified party to represent the indemnified party within a reasonable
time after notice of the institution of such action or (iv) the indemnifying
party shall authorize the indemnified party to employ separate counsel at the
expense of the indemnifying party. An indemnifying party will not, without the
prior written consent of the indemnified parties, settle or compromise or
consent to the entry of any judgment with respect to any pending or threatened
claim, action, suit or proceeding in respect of which indemnification or
contribution may be sought hereunder (whether or not the indemnified parties are
actual or potential parties to such claim or action) unless such settlement,
compromise or consent includes an unconditional release of each indemnified
party from all liability arising out of such claim, action, suit or proceeding
and does not include a statement as to, or an admission of, fault, culpability
or a failure to act by or on behalf of the indemnified party. Notwithstanding
anything contained herein to the contrary, if indemnity may be sought pursuant
to Section 8(b) hereof in respect of such action or proceeding, then in addition
to such separate firm for the indemnified parties, the indemnifying party shall
be liable for the reasonable fees and expenses of not more than one separate
firm (in addition to any local counsel) for Salomon Smith Barney Inc., the
directors, officers, employees and agents of Salomon Smith Barney Inc., and all
persons, if any, who control Salomon Smith Barney Inc. within the meaning of
either the Act or the Exchange Act for the defense of any losses, claims,
damages and liabilities arising out of the Directed Share Program.


<PAGE>   37
                                                                              37


                  (f) In the event that the indemnity provided in paragraph (a),
(b), (c) or (d) of this Section 8 is unavailable to or insufficient to hold
harmless an indemnified party for any reason, the Company, the Selling
Stockholders and the Underwriters severally agree to contribute to the aggregate
losses, claims, damages and liabilities (including legal or other expenses
reasonably incurred in connection with investigating or defending same)
(collectively "Losses") to which the Company, one or more of the Selling
Stockholders and one or more of the Underwriters may be subject in such
proportion as is appropriate to reflect the relative benefits received by the
Company, by the Selling Stockholders on the one hand and by the Underwriters on
the other from the offering of the Securities; provided, however, that in no
case shall any Underwriter (except as may be provided in any agreement among
underwriters relating to the offering of the Securities) be responsible for any
amount in excess of the underwriting discount or commission applicable to the
Securities purchased by such Underwriter hereunder. If the allocation provided
by the immediately preceding sentence is unavailable for any reason, the
Company, the Selling Stockholders and the Underwriters severally shall
contribute in such proportion as is appropriate to reflect not only such
relative benefits but also the relative fault of the Company, of the Selling
Stockholders on the one hand and of the Underwriters on the other in connection
with the statements or omissions which resulted in such Losses as well as any
other relevant equitable considerations. Benefits received by the Company and by
the Selling Stockholders shall be deemed to be equal to the total net proceeds
from the offering (before deducting expenses) received by each of them, and
benefits received by the Underwriters shall be deemed to be equal to the total
underwriting discounts and commissions, in each case as set forth on the cover
page of the Prospectus. Relative fault shall be determined by reference to,
among other things, whether any untrue or any alleged untrue statement of a
material fact or the omission or alleged omission to state a material fact
relates to information provided by the Company, the Selling Stockholders on the
one hand or the Underwriters on the other, the intent of the parties and their
relative knowledge, access to information and opportunity to correct or prevent
such untrue statement or omission. The Company, the Selling Stockholders and the
Underwriters agree that it would not be just and equitable if contribution were
determined by pro rata allocation or any other method of allocation which does
not take account of the equitable considerations referred to above.
Notwithstanding the provisions of this paragraph (f), 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. For purposes of this Section 8, each person who
controls an Underwriter within the meaning of either the Act or the Exchange Act
and each director, officer, employee and agent of an Underwriter shall have the
same rights to contribution as such Underwriter, and each person who controls
the Company or a Selling Stockholder within the meaning of either the Act or the
Exchange Act, each officer of the Company who shall have signed the Registration
Statement and each director of the Company and each director, officer, employee
and agent of the

<PAGE>   38
                                                                              38


Selling Stockholder shall have the same rights to contribution as the Company,
subject in each case to the applicable terms and conditions of this paragraph
(f).

                  (g) The liability of each Selling Stockholder under such
Selling Stockholder's representations and warranties contained in Section 1
hereof and under the indemnity and contribution agreements contained in this
Section 8 shall be limited to an amount equal to the initial public offering
price (after deduction of underwriting discount or commission) of the Securities
sold by such Selling Stockholder to the Underwriters. The Company and the
Selling Stockholders may agree, as among themselves and without limiting the
rights of the Underwriters under this Agreement, as to the respective amounts of
such liability for which they each shall be responsible.

                  9. Default by an Underwriter. If any one or more Underwriters
shall fail to purchase and pay for any of the Securities agreed to be purchased
by such Underwriter or Underwriters hereunder and such failure to purchase shall
constitute a default in the performance of its or their obligations under this
Agreement, the remaining Underwriters shall be obligated severally to take up
and pay for (in the respective proportions which the amount of Securities set
forth opposite their names in Schedule I hereto bears to the aggregate amount of
Securities set forth opposite the names of all the remaining Underwriters) the
Securities which the defaulting Underwriter or Underwriters agreed but failed to
purchase; provided, however, that in the event that the aggregate amount of
Securities which the defaulting Underwriter or Underwriters agreed but failed to
purchase shall exceed 10% of the aggregate amount of Securities set forth in
Schedule I hereto, the remaining Underwriters shall have the right to purchase
all, but shall not be under any obligation to purchase any, of the Securities,
and if such nondefaulting Underwriters do not purchase all the Securities, this
Agreement will terminate without liability to any nondefaulting Underwriter, the
Selling Stockholders or the Company. In the event of a default by any
Underwriter as set forth in this Section 9, the Closing Date shall be postponed
for such period, not exceeding five Business Days, as the Representatives shall
determine in order that the required changes in the Registration Statement and
the Prospectus or in any other documents or arrangements may be effected.
Nothing contained in this Agreement shall relieve any defaulting Underwriter of
its liability, if any, to the Company, the Selling Stockholders and any
nondefaulting Underwriter for damages occasioned by its default hereunder.

                  10. Termination. This Agreement shall be subject to
termination in the absolute discretion of the Representatives, by notice given
to the Company and Jerry S. Cox and Patrick T. Seaver, as Attorneys-in-Fact for
the Selling Stockholders prior to delivery of and payment for the Securities, if
at any time prior to such time (i) trading in the Company's Common Stock shall
have been suspended by the Commission or the Nasdaq National Market or trading
in securities generally on the New York Stock Exchange shall have been suspended
or limited or minimum prices shall have been established on the Nasdaq National
Market, (ii) a banking moratorium shall have been

<PAGE>   39
                                                                              39


declared either by Federal or New York State authorities or (iii) there shall
have occurred any outbreak or escalation of hostilities, declaration by the
United States of a national emergency or war, or other calamity or crisis the
effect of which on financial markets is such as to make it, in the sole judgment
of the Representatives, impractical or inadvisable to proceed with the offering
or delivery of the Securities as contemplated by the Prospectus (exclusive of
any supplement thereto).

                  11. Representations and Indemnities to Survive. The respective
agreements, representations, warranties, indemnities and other statements of
the Company or its officers, of each Selling Stockholder and of the Underwriters
set forth in or made pursuant to this Agreement will remain in full force and
effect, regardless of any investigation made by or on behalf of any Underwriter,
any Selling Stockholder or the Company or any of the officers, directors,
employees, agents or controlling persons referred to in Section 8 hereof, and
will survive delivery of and payment for the Securities. The provisions of
Sections 7 and 8 hereof shall survive the termination or cancellation of this
Agreement.

                  12. Notices. All communications hereunder will be in writing
and effective only on receipt, and, if sent to the Representatives, will be
mailed, delivered or telefaxed to the Salomon Smith Barney Inc. General Counsel
(fax no.: (212) 816-7912) and confirmed to the General Counsel, Salomon Smith
Barney Inc., at 388 Greenwich Street, New York, New York, 10013, Attention:
General Counsel; or, if sent to the Company, will be mailed, delivered or
telefaxed to Hydril Company, Chief Financial Officer, (fax no.: (281) 985-3287))
and confirmed to it at Hydril Company, 3300 North Sam Houston Parkway E,
Houston, TX 77032, attention of the Chief Financial Officer; or if sent to any
Selling Stockholder, will be mailed, delivered or telefaxed and confirmed to it
at the address set forth in Schedule II hereto.

                  13. Successors. This Agreement will inure to the benefit of
and be binding upon the parties hereto and their respective successors and the
officers, directors, employees, agents and controlling persons referred to in
Section 8 hereof, and no other person will have any right or obligation
hereunder.

                  14. Applicable Law. This Agreement will be governed by and
construed in accordance with the laws of the State of New York applicable to
contracts made and to be performed within the State of New York.

                  15. Counterparts. This Agreement may be signed in one or more
counterparts, each of which shall constitute an original and all of which
together shall constitute one and the same agreement.

                  16. Headings. The section headings used herein are for
convenience only and shall not affect the construction hereof.


<PAGE>   40
                                                                              40


                  17. Definitions. The terms which follow, when used in this
Agreement, shall have the meanings indicated.

                  "Act" shall mean the Securities Act of 1933, as amended, and
         the rules and regulations of the Commission promulgated thereunder.

                  "Business Day" shall mean any day other than a Saturday, a
         Sunday or a legal holiday or a day on which banking institutions or
         trust companies are authorized or obligated by law to close in New York
         City.

                  "Commission" shall mean the Securities and Exchange
         Commission.

                  "Effective Date" shall mean each date and time that the
         Registration Statement, any post-effective amendment or amendments
         thereto and any Rule 462(b) Registration Statement became or become
         effective.

                  "Exchange Act" shall mean the Securities Exchange Act of 1934,
         as amended, and the rules and regulations of the Commission promulgated
         thereunder.

                  "Execution Time" shall mean the date and time that this
         Agreement is executed and delivered by the parties hereto.

                  "Preliminary Prospectus" shall mean any preliminary prospectus
         referred to in paragraph 1(i)(a) above and any preliminary prospectus
         included in the Registration Statement at the Effective Date that omits
         Rule 430A Information.

                  "Prospectus" shall mean the prospectus relating to the
         Securities that is first filed pursuant to Rule 424(b) after the
         Execution Time or, if no filing pursuant to Rule 424(b) is required,
         shall mean the form of final prospectus relating to the Securities
         included in the Registration Statement at the Effective Date.

                  "Registration Statement" shall mean the registration statement
         referred to in paragraph 1(i)(a) above, including exhibits and
         financial statements, as amended at the Execution Time (or, if not
         effective at the Execution Time, in the form in which it shall become
         effective) and, in the event any post-effective amendment thereto or
         any Rule 462(b) Registration Statement becomes effective prior to the
         Closing Date, shall also mean such registration statement as so amended
         or such Rule 462(b) Registration Statement, as the case may be. Such
         term shall include any Rule 430A Information deemed to be included
         therein at the Effective Date as provided by Rule 430A.


<PAGE>   41
                                                                              41


                  "Rule 424", "Rule 430A" and "Rule 462" refer to such rules
         under the Act.

                  "Rule 430A Information" shall mean information with respect to
         the Securities and the offering thereof permitted to be omitted from
         the Registration Statement when it becomes effective pursuant to Rule
         430A.

                  "Rule 462(b) Registration Statement" shall mean a registration
         statement and any amendments thereto filed pursuant to Rule 462(b)
         relating to the offering covered by the registration statement referred
         to in Section 1(a) hereof.


<PAGE>   42
                                                                              42


                  If the foregoing is in accordance with your understanding of
our agreement, please sign and return to us the enclosed duplicate hereof,
whereupon this letter and your acceptance shall represent a binding agreement
among the Company, the Selling Stockholder and the several Underwriters.


                                        Very truly yours,

                                        HYDRIL COMPANY,


                                        by
                                          -------------------------------
                                          Name:
                                          Title:


                                        [Selling Stockholder],

                                        by
                                          -------------------------------
                                          Name:
                                          Title: Attorney-in-Fact



The foregoing Agreement is hereby confirmed and accepted as of the date first
above written.

Salomon Smith Barney Inc.
Credit Suisse First Boston Corporation
Dain Rauscher Incorporated
Simmons & Company International

By: Salomon Smith Barney Inc.


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

For themselves and the other
several Underwriters named in
Schedule I to the foregoing Agreement.

<PAGE>   43
                                   SCHEDULE I



<TABLE>
<CAPTION>
                                                                      NUMBER OF UNDERWRITTEN
UNDERWRITERS                                                          SECURITIES TO BE PURCHASED
------------                                                          --------------------------
<S>                                                                   <C>
Salomon Smith Barney Inc......................................
Credit Suisse First Boston Corporation........................
Dain Rauscher International...................................
Simmons & Company International...............................


                                                                      ---------
       Total..................................................        7,500,000
                                                                      =========
</TABLE>

<PAGE>   44

                                   SCHEDULE II

<TABLE>
<CAPTION>
                                                                             MAXIMUM
                                                NUMBER OF                    NUMBER OF
                                                UNDERWRITTEN                 OPTION
                                                SECURITIES TO BE             SECURITIES TO
SELLING STOCKHOLDERS:                           SOLD                         BE SOLD
--------------------                            ----------------             -------------
<S>                                             <C>                          <C>
[names]
c/o O'Melveny & Myers LLP
1999 Avenue of the Stars
Los Angeles, CA 90067-6035
attn:  Kendall Bishop, Esq.
telephone: (310) 553-6700
fax: (310) 246-6779





                                                ----------------             ------------
       Total ................
                                                ================             ============
</TABLE>

<PAGE>   45

                                  SCHEDULE III


STOCKHOLDERS                                                      LOCK-UP PERIOD
<PAGE>   46

                                   SCHEDULE IV



SELLING STOCKHOLDERS

1.     The Seaver Institute
2.     Trust under Paragraph V of the Will of Frank R. Seaver, Deceased
3.     Blanche Ebert Seaver Perpetual Trust



<PAGE>   47

                                   SCHEDULE V



SELLING STOCKHOLDERS

4.     Earl Spencer Trust
5.     William S. Banowsky
6.     First Congregational Church of Los Angeles
7.     Masonic Homes of California
8.     Charles B. Runnels
9.     Harvard-Westlake School
10.    Hospital of the Good Samaritan
11.    The Bishop of the Protestant Episcopal Church in Los Angeles
12.    Los Angeles County Museum of Natural History Foundation
13.    Ann M. Drake Trust
14.    Robert Allen Drake
15.    George M. Hill
16.    William Hobart Satchell Trust
17.    St. Nicholas Episcopal Church
18.    Lois C. Kite
19.    Hugh Elkins

<PAGE>   48

                                                                       EXHIBIT A





                           [FORM OF LOCK-UP AGREEMENT]


               [LETTERHEAD OF OFFICER, DIRECTOR OR STOCKHOLDER OF
                                 HYDRIL COMPANY]


                                 Hydril Company
                         Public Offering of Common Stock


                                                                          , 2000
                                                                 ---------

Salomon Smith Barney Inc.
Credit Suisse First Boston
Dain Rauscher Incorporated
Simmons & Company International
As Representatives of the several Underwriters,
c/o Salomon Smith Barney Inc.
388 Greenwich Street
New York, New York 10013

Ladies and Gentlemen:

                  This letter is being delivered to you in connection with the
proposed Underwriting Agreement (the "Underwriting Agreement"), among Hydril
Company, a Delaware corporation (the "Company"), certain stockholders of the
Company and each of you as representatives of a group of Underwriters named
therein, relating to an underwritten public offering of Common Stock, $ 0.50 par
value (the "Common Stock" and together with the Class B common stock, the
"Capital Stock"), of the Company.

                  In order to induce you and the other Underwriters to enter
into the Underwriting Agreement, the undersigned will not, without the prior
written consent of Salomon Smith Barney Inc., offer, sell, contract to sell,
pledge or otherwise dispose of, (or enter into any transaction which is designed
to, or might reasonably be expected to, result in the disposition (whether by
actual disposition or effective economic disposition due to cash settlement or
otherwise) by the undersigned or any affiliate of the undersigned or any person
in privity with the undersigned or any affiliate of the undersigned), directly
or indirectly, including the filing (or participation in the filing) of a
registration statement with the Securities and Exchange Commission in respect
of, or establish or increase a put equivalent position or liquidate or decrease
a call equivalent position within the meaning of Section 16 of the Securities
Exchange Act of 1934, as amended, and the rules and regulations of the
Securities and Exchange Commission promulgated thereunder with


<PAGE>   49

respect to, any shares of Capital Stock of the Company or any securities
convertible into, or exercisable or exchangeable for such Capital Stock, or
publicly announce an intention to effect any such transaction, for a period of
[For the Company and the selling stockholders owning more than 5% of the
outstanding shares of the Company's Class B common stock prior to the IPO,
insert--210 days] [for directors, executive officers, relatives of Frank R.
Seaver and stockholders owning more than 0.5% but 5% or less of the Company's
Class B common stock prior to the IPO, insert--180 days] after the date of the
Underwriting Agreement, other than shares of Common Stock disposed of as bona
fide gifts approved by Salomon Smith Barney Inc., shares of Capital Stock
transferred to a trust or family member of the undersigned, provided that such
transferee agrees in writing with the Underwriters to be bound by this letter,
and Class B common stock converted into Common Stock in accordance with the
Certificate of Incorporation of the Company.

                  If for any reason the Underwriting Agreement shall be
terminated prior to the Closing Date (as defined in the Underwriting Agreement),
the agreement set forth above shall likewise be terminated.


                                      Yours very truly,

                                      [SELLING STOCKHOLDER]

                                      by_________________

                                      Name:
                                      Title: Attorney-in-Fact



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