EXHIBIT 3.1


                      RESTATED CERTIFICATE OF INCORPORATION
                                       OF
                            BAKER HUGHES INCORPORATED


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                     PURSUANT TO SECTIONS 245 AND 242 OF THE
                GENERAL CORPORATION LAW OF THE STATE OF DELAWARE

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         BAKER HUGHES INCORPORATED (the "Corporation"), a corporation organized
and existing under and by virtue of the General Corporation Law of the State of
Delaware, hereby adopts the following Restated Certificate of Incorporation
pursuant to Sections 245 and 242 of said General Corporation Law and certifies
as follows:

         1.       The name of this corporation is:

                             BAKER HUGHES INCORPORATED

         2.       The Certificate of Incorporation of the Corporation was
                  originally filed with the Secretary of State of the State of
                  Delaware on November 3, 1986.

         3.       The 1987 Restated Certificate of Incorporation was duly
                  adopted by unanimous written consent of the Board of Directors
                  of the Corporation dated December 17, 1986, and by unanimous
                  vote of all the stockholders on December 18, 1986 in
                  accordance with the provisions of Section 245 and 242 of the
                  General Corporation Law of the State of Delaware.

         4.       The Certificate of Amendment was duly adopted by the Board of
                  Directors of the Corporation on March 3, 1999 and by the
                  holders of a majority of the outstanding shares of the
                  Corporation's capital stock on April 28, 1999, in accordance
                  with the provisions of Section 242 of the General Corporation
                  Law of the State of Delaware.

         5.       This Restated Certificate of Incorporation was duly adopted by
                  the Board of Directors of the Corporation on July 24, 2002 in
                  accordance with the provisions of Section 245 of the General
                  Corporation Law of the State of Delaware.

         6.       This Restated Certificate of Incorporation supersedes the
                  original Certificate of Incorporation.

         7.       The Certificate of Incorporation is hereby restated in its
                  entirety to read as follows:



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              FIRST:  The name of this Corporation is:

                                 BAKER HUGHES INCORPORATED

              SECOND: The address of its registered office in the State of
              Delaware is The Corporation Trust Center, 1209 Orange Street in
              the City of Wilmington, County of New Castle. The name of its
              registered agent at such address is The Corporation Trust Company.

              THIRD: The nature of the business or purposes to be conducted or
              promoted is to engage in any lawful act or activity for which
              corporations may be organized under the General Corporation Law of
              Delaware.

              FOURTH: The total number of shares of stock which the Corporation
              shall have the authority to issue is 765,000,000 shares of capital
              stock consisting of 15,000,000 shares of preferred stock, par
              value $1.00 per share (the "Preferred Stock"), and 750,000,000
              shares of common stock, par value $1.00 per share (the "Common
              Stock").

              The designations, powers, preferences and relative, participating,
              optional or other special rights and qualifications, limitations
              or restrictions of the Preferred Stock shall be established by
              resolution of the Board of Directors pursuant to Section 151 of
              the General Corporation Law of the State of Delaware.

              FIFTH: In furtherance and not in limitation of the powers
              conferred by statute, the Board of Directors is expressly
              authorized to make, alter or repeal the bylaws of the Corporation.

              SIXTH: Election of directors need not be by written ballot unless
              the bylaws of the Corporation shall so provide.

              SEVENTH: The bylaws of the Corporation shall not be made,
              repealed, altered, amended or rescinded by the stockholders of the
              Corporation except by the vote of the holders of not less than 75%
              of the total voting power of all shares of stock of the
              Corporation entitled to vote in the election of directors,
              considered for purposes of this Article SEVENTH as one class.

              EIGHTH: No action shall be taken by the stockholders except at an
              annual or special meeting of stockholders and stockholders may not
              act by written consent.

              NINTH: Special meetings of the stockholders of the Corporation for
              any purpose or purposes may be called at any time by the Board of
              Directors, or by a committee of the Board of Directors which has
              been duly designated by the Board of Directors and whose powers
              and authority, as provided in a resolution of the Board of
              Directors or in the bylaws of the Corporation, include the power
              to call



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              such meetings. Special meetings of stockholders of the Corporation
              may not be called by any other person or persons.

              TENTH: No director of this Corporation shall be personally liable
              to the Corporation nor its stockholders for monetary damages for
              breach of fiduciary duty as a director, except for liability (i)
              for any breach of the director's duty of loyalty to the
              Corporation or its stockholders, (ii) for acts or omissions not in
              good faith or which involve intentional misconduct or a knowing
              violation of the law, (iii) under Section 174 of the General
              Corporation Law of Delaware, or (iv) for any transaction from
              which the director derived an improper personal benefit.

              If the General Corporation Law of the State of Delaware is
              hereafter amended to authorize corporate action further limiting
              or eliminating the personal liability of directors, then the
              liability of the director to the Corporation shall be limited or
              eliminated to the full extent permitted by the General Corporation
              Law of the State of Delaware, as so amended from time to time. Any
              repeal or modification of this Article shall be prospective only,
              and shall not adversely affect any limitation on the personal
              liability of a director of the Corporation existing at the time of
              such repeal or modification.

              ELEVENTH: The initial directors of the Corporation shall serve for
              a term ending on the date of the first annual meeting of
              stockholders next following September 30, 1987. Thereafter, the
              Board of Directors shall be divided into three classes, Class I,
              Class II, and Class III. The number of directors in each class
              shall be the whole number contained in the quotient arrived at by
              dividing the authorized number of directors by three, and if a
              fraction is also contained in such quotient then if such fraction
              is one-third (1/3) the extra director shall be a member of Class
              III and if the fraction is two-thirds (2/3) one of the extra
              directors shall be a member of Class III and the other shall be a
              member of Class II. After division of the Board of Directors into
              classes, each director shall serve for a term ending on the date
              of the third annual meeting following the annual meeting at which
              such director was elected; provided, however, that the initial
              directors appointed to Class I shall serve for a term ending on
              the date of the first annual meeting next following September 30,
              1988, the initial directors appointed to Class II shall serve for
              a term ending on the date of the second annual meeting next
              following September 30, 1988, and the initial directors appointed
              to Class III shall serve for a term ending on the date of the
              third annual meeting next following September 30, 1988.

              The number of directors shall be fixed from time to time by the
              bylaws of the Corporation or an amendment thereof duly adopted by
              the Board of Directors or by the stockholders acting in accordance
              with Article SEVENTH herein. In the event of any increase or
              decrease in the authorized number of directors; (a) each director
              then serving as such shall nevertheless continue as a director of
              the class of which he is a member until the expiration of his
              current term, or his prior death, retirement, resignation or
              removal; and (b) the newly created or eliminated



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              directorships resulting from such increase or decrease shall be
              apportioned by the Board of Directors to such class or classes as
              shall, so far as possible, bring the number of directors in the
              respective classes into conformity with the formula in this
              Article, as applied to the new authorized number of directors.

              Notwithstanding any of the foregoing provisions of this Article,
              each director shall serve until his successor is elected and
              qualified or until his death, retirement, resignation or removal.
              No director may be removed during his term except for cause.

              TWELFTH: The affirmative vote of the holders of not less than 75%
              of the outstanding shares of "Voting Stock" (as hereinafter
              defined) of the Corporation, including the affirmative vote of the
              holders of not less than 66 2/3% of the outstanding shares of
              Voting Stock not owned, directly or indirectly, by any "Related
              Person" (as hereinafter defined), shall be required for the
              approval or authorization of any "Business Combination" (as
              hereinafter defined) of the Corporation with any Related Person;
              provided, however, that the 66 2/3% voting requirement referred to
              above shall not be applicable if the Business Combination is
              approved by the affirmative vote of the holders of not less than
              90% of the outstanding shares of Voting Stock; and further
              provided that the 75% voting requirement shall not be applicable
              if:

                 (1) The Board of Directors of the Corporation by a vote of not
              less than 75% of the directors then holding office (a) have
              expressly approved in advance the acquisition of outstanding
              shares of Voting Stock of the Corporation that caused the Related
              Person to become a Related Person or (b) have approved the
              Business Combination prior to the Related Person involved in the
              Business Combination having become a Related Person;

                 (2) The Business Combination is solely between the Corporation
              and another corporation, 100% of the Voting Stock of which is
              owned directly or indirectly by the Corporation; or

                 (3) All of the following conditions have been met: (a) the
              Business Combination is a merger or consolidation, the
              consummation of which is proposed to take place within one year of
              the date of the transaction pursuant to which such person became a
              Related Person and the cash or fair market value of the property,
              securities or other consideration to be received per share by
              holders of Common Stock of the Corporation in the Business
              Combination is not less than the highest per share price (with
              appropriate adjustments for recapitalizations and for stock
              splits, reverse stock splits and stock dividends) paid by the
              Related Person in acquiring any of its holdings of the
              Corporation's Common Stock; (b) the consideration to be received
              by such holders is either cash or, if the Related Person shall
              have acquired the majority of its holdings of the Corporation's
              Common Stock for a form of consideration other than cash, in the
              same form of consideration as the Related Person acquired such
              majority; (c) after such Related



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              Person has become a Related Person and prior to the consummation
              of such Business Combination: (i) except as approved by a majority
              of the "Continuing Directors" (as hereinafter defined), there
              shall have been no failure to declare and pay at the regular date
              therefor any full quarterly dividends (whether or not cumulative)
              on any outstanding Shares of Preferred Stock of the Corporation;
              (ii) there shall have been no reduction in the annual rate of
              dividends paid per share on the Corporation's Common Stock
              (adjusted as appropriate for recapitalizations and for stock
              splits, reverse stock splits and stock dividends) except as
              approved by a majority of the Continuing Directors; (iii) such
              Related Person shall not have become the "Beneficial Owner" (as
              hereinafter defined) of any additional shares of Voting Stock of
              the Corporation except as part of the transaction which resulted
              in such Related Person becoming a Related Person; and (iv) such
              Related Person shall not have received the benefit, directly or
              indirectly (except proportionately as a stockholder), of any
              loans, advances, guarantees, pledges or other financial assistance
              or any tax credits or other tax advantages provided by the
              Corporation, whether in anticipation of or in connection with such
              Business Combination or otherwise; and (d) a proxy statement,
              responsive to the requirements of the Securities Exchange Act of
              1934, as amended ("Exchange Act") and the rules and regulations
              thereunder (or any subsequent provisions replacing the Exchange
              Act, rules or regulations), shall be mailed to all stockholders of
              record at least 30 days prior to the consummation of the Business
              Combination for the purpose of soliciting stockholder approval of
              the Business Combination and shall contain at the front thereof,
              in a prominent place, any recommendations as to the advisability
              (or inadvisability) of the Business Combination which the
              Continuing Directors, or any of them, may choose to state and, if
              deemed advisable by a majority of the Continuing Directors, an
              opinion of a reputable investment banking firm as to the fairness
              (or unfairness) of the terms of such Business Combination from the
              point of view of the remaining stockholders of the Corporation
              (such investment banking firm to be selected by a majority of the
              Continuing Directors and to be paid a reasonable fee for its
              services by the Corporation upon receipt of such opinion).

               For the purposes of this Article:

                    (i) The term "Business Combination" shall mean (a) any
                  merger or consolidation of the Corporation or a subsidiary
                  with or into a Related Person; (b) any sale, lease exchange,
                  transfer or other disposition, including without limitation a
                  mortgage or any other security device, of all or any
                  "Substantial Part" (as hereinafter defined) of the assets
                  either of the Corporation (including, without limitation, any
                  voting securities of a subsidiary) or of a subsidiary to a
                  Related Person (other than a distribution by the Corporation
                  or a subsidiary to the Related Person of assets in connection
                  with a pro rata distribution by the Corporation to all
                  stockholders); (c) any merger or consolidation of a Related
                  Person with or into the Corporation or a subsidiary of the
                  Corporation; (d) any sale, lease, exchange, transfer or other
                  disposition of all or any Substantial Part of the assets of a
                  Related Person to the



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                  Corporation or a subsidiary of the Corporation; (e) the
                  issuance of any securities (other than by way of pro rata
                  distribution to all stockholders) of the Corporation or a
                  subsidiary of the Corporation to a Related Person; (f) the
                  acquisition by the Corporation or a subsidiary of the
                  Corporation of any securities of a Related Person; g) any
                  recapitalization that would have the effect of increasing the
                  voting power of a Related Person; (h) any series or
                  combination of transactions having the same effect, directly
                  or indirectly, as any of the foregoing and (i) any agreement,
                  contract or arrangement providing for any of the transactions
                  described in this definition of Business Combination.

                      (ii) The term "Continuing Director" shall mean any member
                  of the Board of Directors of the Corporation who is not
                  affiliated with a Related Person and who was a member of the
                  Board of Directors immediately prior to the time that the
                  Related Person became a Related Person, and any successor to a
                  Continuing Director who is not affiliated with the Related
                  Person and is recommended to succeed a Continuing Director by
                  a majority of Continuing Directors then serving as members of
                  the Board of Directors of the Corporation.

                     (iii) The term "Related Person" shall mean and include any
                  individual, corporation, partnership or other person or entity
                  which, together with its "Affiliates" and "Associates" (as
                  defined on October 1, 1986 in Rule 12b-2 under the Exchange
                  Act), is the "Beneficial Owner" (as defined on October 1, 1986
                  in Rule 13d-3 under the Exchange Act) in the aggregate of 10%
                  or more of the outstanding Voting Stock of the Corporation,
                  and any Affiliate or Associate of any such individual,
                  corporation, partnership or other person or entity.

                    (iv) The term "Substantial Part" shall mean more than 10% of
                  the book value of the total assets of the Corporation in
                  question as of the end of its most recent fiscal year ending
                  prior to the time the determination is being made.

                     (v) Without limitation, any shares of Common Stock of the
                  Corporation that any person has the right to acquire pursuant
                  to any agreement, or upon exercise of conversion rights,
                  warrants or options, or otherwise, shall be deemed
                  beneficially owned by such person.

                     (vi) For the purposes of subparagraph (3) of this Article,
                  the term "other consideration to be received" shall include,
                  without limitation, Common Stock of the Corporation retained
                  by its existing public stockholders in the event of a Business
                  Combination in which the Corporation is the surviving
                  corporation.

                    (vii) The term "Voting Stock" shall mean all outstanding
                  shares of capital stock of the Corporation or another
                  corporation entitled to vote generally in the election of
                  directors and each reference to a proportion of shares of
                  Voting Stock shall refer to such proportion of the votes
                  entitled to be cast by such shares.



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               THIRTEENTH: The provisions set forth in this Article THIRTEENTH
               and in Articles SEVENTH (dealing with the alteration of bylaws by
               stockholders), EIGHTH (dealing with the prohibition against
               stockholder action without meetings), TENTH (dealing with
               liability of directors), ELEVENTH (dealing with the
               classification and number of directors) and TWELFTH (dealing with
               the 75% vote of stockholders required for certain Business
               Combinations) herein may not be repealed or amended in any
               respect, and no Article imposing cumulative voting in the
               election of directors may be added, unless such action is
               approved by the affirmative vote of not less than 75% of the
               total voting power of all shares of stock of the Corporation
               entitled to vote in the election of directors, considered for
               purposes of this Article THIRTEENTH as one class. Amendment to
               the provisions set forth in this Article THIRTEENTH and in
               Article TWELFTH shall also require the affirmative vote of 66
               2/3% of such total voting power excluding the vote of shares
               owned by a "Related Person" (as defined in Article THIRTEENTH).
               The voting requirements contained in Article SEVENTH, Article
               TWELFTH and this Article THIRTEENTH herein shall be in addition
               to the voting requirements imposed by law, other provisions of
               this Certificate of Incorporation or any Certificate of
               Designation of Preferences in favor of certain classes or series
               of classes of shares of the Corporation.

               FOURTEENTH: The Corporation reserves the right to amend, alter,
               change or repeal any provisions contained in this Restated
               Certificate of Incorporation, in the manner now or hereafter
               prescribed by statute, and all rights conferred upon stockholders
               herein are granted subject to this reservation. Notwithstanding
               the foregoing, the provision set forth in Articles SEVENTH,
               EIGHTH, TENTH, ELEVENTH, TWELFTH, and THIRTEENTH may not be
               repealed or amended in any respect unless such repeal or
               amendment is approved as specified in Article THIRTEENTH herein.

         IN WITNESS WHEREOF, BAKER HUGHES INCORPORATED has caused this Restated
  Certificate of Incorporation to be executed, signed and acknowledged by G.
  Stephen Finley, its Sr. Vice President, who states under penalty that the
  facts stated herein are true, and to be attested by Sandra E. Alford, its
  Corporate Secretary this 24th day of July, 2002.


                                                    /s/ G. Stephen Finley
                                                    ---------------------
                                                        G. Stephen Finley
                                                       Sr. Vice President


   Attest:

   /s/ Sandra E. Alford
   --------------------
       Sandra E. Alford
    Corporate Secretary



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