NOBLE DRILLING CORP
10-K/A, 1994-06-29
DRILLING OIL & GAS WELLS
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<PAGE>   1
                                UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON, D.C.  20549
                                _____________

                                 FORM 10-K/A

                               AMENDMENT NO. 1

       /X/    ANNUAL REPORT PURSUANT TO  SECTION 13 or 15(d) OF
              THE SECURITIES EXCHANGE ACT OF 1934 (Fee Required)

                 FOR THE FISCAL YEAR ENDED DECEMBER 31, 1993

       / /   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
             THE SECURITIES EXCHANGE ACT OF 1934 (No Fee Required)
                                      
            For the transition period from __________ to ________

                       COMMISSION FILE NUMBER: 0-13857

                          NOBLE DRILLING CORPORATION
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

               DELAWARE                                73-0374541
       (State of incorporation)          (I.R.S. employer identification number)

    10370 RICHMOND AVENUE, SUITE 400
            HOUSTON, TEXAS                               77042
(Address of principal executive offices)               (Zip code)

      REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (713) 974-3131

         SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

                                                     NAME OF EACH EXCHANGE
  TITLE OF EACH CLASS                                 ON WHICH REGISTERED
  -------------------                                 -------------------
         NONE                  

         SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:
                    COMMON STOCK, PAR VALUE $.10 PER SHARE
                               (Title of class)

                        $2.25 CONVERTIBLE EXCHANGEABLE
                  PREFERRED STOCK, PAR VALUE $1.00 PER SHARE
                               (Title of class)

     Indicate by check mark whether the registrant (1) has filed all reports 
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 
1934 during the preceding 12 months (or for such shorter period that the 
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.    Yes   /x/     No   / /

     Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements 
incorporated by reference in Part III of this Form 10K or any amendment to this
Form 10K.   / /

                    Aggregate market value of Common Stock
           held by nonaffiliates as of March 10, 1994: $317,570,430
Number of shares of Common Stock outstanding as of March 10, 1994: 47,609,941

                     DOCUMENTS INCORPORATED BY REFERENCE

     Listed below are documents parts of which are incorporated herein by 
reference and the part of this report into which the document is incorporated:
 
    (1) Proxy statement for the 1994 annual meeting of shareholders - Part III
<PAGE>   2
     The cover page of Noble Drilling Corporation's Annual Report on Form 10-K
for the year ended December 31, 1993 is amended to reflect 47,609,941 shares 
of common stock outstanding as of March 10, 1994, and such cover page as 
amended is set forth above.

     Item 14 of Noble Drilling Corporation's Annual Report on Form 10-K for
the year ended December 31, 1993 is amended to reflect the filing herewith as
Exhibit 99.2 of the financial statements required by Form 11-K for the fiscal
years ended December 31, 1993 and 1992 with respect to the Noble Drilling 
Corporation Thrift Plan, and such Item 14 is restated as set forth on the 
subsequent pages.
<PAGE>   3
ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K

     (a)    The following documents are filed as part of this report:

            (1)  Financial Statements:

                 Report of Independent Public Accountants
                 Consolidated Balance Sheets at December 31, 1993 and 1992
                 Consolidated Statements of Operations for each of the three
                   years in the period ended December 31, 1993
                 Consolidated Statements of Cash Flows for each of the three
                   years in the period ended December 31, 1993
                 Consolidated Statements of Shareholders' Equity for each of
                   the three years in the period ended December 31, 1993
                 Notes to Consolidated Financial Statements

            (2)  Financial Statement Schedules (filed herewith):

                 Schedule V  - Property, Plant and Equipment
                 Schedule VI - Accumulated Depreciation, Depletion and
                               Amortization of Property, Plant and Equipment

     All other schedules are omitted because they are not applicable or the
required information is shown in the financial statements or notes thereto.

            (3)  Exhibits:

                 The information required by this Item 14(a)(3) is set forth in
                 the Index to Exhibits accompanying this Annual Report on Form
                 10-K.

            (4)  Financial Statements required by Form 11-K for the fiscal
                 years ended December 31, 1993 and 1992 with respect to the 
                 Noble Drilling Corporation Thrift Plan are filed as 
                 Exhibit 99.2 hereto.

     (b)    The following report on Form 8-K was filed by the Registrant during
            the three-month period ended December 31, 1993:

            Form 8-K dated October 18, 1993 (Date of Event: October 7, 1993),
            which reported the acquisition of nine offshore jackup drilling
            rigs and related drilling assets from The Western Company of North
            America under "Item 2. Acquisition or Disposition of Assets."  The
            financial statements and pro forma financial information required
            by Item 7 of Form 8-K had been previously reported.
<PAGE>   4
                                   SIGNATURES

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

                                        NOBLE DRILLING CORPORATION
Date: June 28, 1994

                                        By: /s/ BYRON L. WELLIVER
                                            Byron L. Welliver
                                            Senior Vice President-Finance
                                             and Treasurer (Principal Financial
                                             Officer)
<PAGE>   5
                               INDEX TO EXHIBITS

                                                                    SEQUENTIALLY
EXHIBIT                                                               NUMBERED
NUMBER                      EXHIBITS                                    PAGE
- - -------                     --------                                ------------
                                               

2.1   -  Assets Purchase Agreement dated as of August 20, 1993
         (the "Western Assets Purchase Agreement"), between
         the Registrant and The Western Company of North
         America (filed as Exhibit 2.1 to the Registrant's
         Registration Statement on Form S-3 (No. 33-67130) and
         incorporated herein by reference).

2.2   -  Agreement dated as of October 7, 1993, among the
         Registrant, Noble Drilling (U.S.) Inc., Noble
         International Limited, The Western Company of North
         America and Offshore International Ltd., amending the
         Western Assets Purchase Agreement (filed as Exhibit
         2.2 to the Registrant's Form 8-K dated October 15,
         1993 and incorporated herein by reference).

2.3   -  Exchange Agreement dated as of June 4, 1993, by and
         among the Registrant, Grasso Corporation, Offshore
         Logistics, Inc., PPI-Seahawk, Inc. and Noble
         Production Services Inc. (filed as Exhibit 2.2 to the
         Registrant's Registration Statement on Form S-3 (No.
         33-67130) and incorporated herein by reference).

2.4   -  Amendment No. 1 dated October 29, 1993 to the
         Exchange Agreement by and among the Registrant,
         Grasso Corporation, Offshore Logistics, Inc.,
         PPI-Seahawk Services, Inc. and Noble Production
         Services Inc.

2.5   -  Assets Purchase Agreement dated as of August 20, 1993
         (the "Portal Assets Purchase Agreement"), between the
         Registrant and Portal Rig Corporation (filed as
         Exhibit 2.3 to the Registrant's Registration
         Statement on Form S-3 (No. 33-67130) and incorporated
         herein by reference).

2.6   -  Agreement dated as of October 25, 1993, among the
         Registrant, Noble (Gulf of Mexico) Inc.  and Portal
         Rig Corporation, amending the Portal Assets Purchase
         Agreement (filed as Exhibit 2.5 to the Registrant's
         Quarterly Report on Form 10-Q for the three-month
         period ended September 30, 1993 and incorporated
         herein by reference).

2.7   -  Assignment and Assumption Agreement made as of
         Octoboer 28, 1993 by and between Noble Production
         Management Inc., Noble Production Services Inc., OLOG
         Production Management Inc., PPI-Seakhawk Services,
         Inc. and Grasso Corporation.

3.1   -  Restated Certificate of Incorporation of the
         Registrant dated August 29, 1985 (filed as Exhibit
         3.7 to the Registrant's Registration Statement on
         Form 10 (No. 0-13857) and incorporated herein by
         reference).

3.2   -  Certificate of Amendment of Restated Certificate of
         Incorporation of the Registrant dated May 5, 1987
         (filed as Exhibit 4.2 to the Registrant's
         Registration Statement on Form S-3 (No. 33-67130) and
         incorporated herein by reference).

3.3   -  Certificate of Amendment of Restated Certificate of
         Incorporation of the Registrant dated June 1, 1987
         (filed as Exhibit 4.3 to the Registrant's
         Registration Statement on Form S-3 (No. 33-67130) and
         incorporated herein by reference).

3.4   -  Certificate of the Designations, Powers, Preferences
         and Relative, Participating, Optional and Other
         Special Rights and the Qualifications, Limitations or
         Restrictions thereof, which have not been set forth
         in the Restated Certificate of Incorporation or in
         any amendment thereto, of the





<PAGE>   6
         Series A Convertible Preferred Stock of the
         Registrant, dated as of January 25, 1988 (files as
         Exhibit 3.10 to the Registrant's Annual Report on Form
         10-K for the year ended December 31, 1987 and
         incorporated herein by reference).

3.5   -  Certificate of the Designations, Powers, Preferences
         and Relative, Participating, Optional and Other
         Special Rights and the Qualifications, Limitations or
         Restrictions thereof, which have not been set forth
         in the Restated Certificate of Incorporation or in
         any amendment thereto, of the Series B Convertible
         Preferred Stock of the Registrant, dated as of
         November 10, 1988 (filed as Exhibit 3.11 to the
         Registrant's Annual Report on Form 10-K for the year
         ended December 31, 1988 and incorporated herein by
         reference).

3.6   -  Certificate of Amendment of Restated Certificate of
         Incorporation of the Registrant dated April 28, 1988
         (filed as Exhibit 3.12 to the Registrant's Annual
         Report on Form 10-K for the year ended December 31,
         1988 and incorporated herein by reference).

3.7   -  Certificate of Amendment of Restated Certificate of
         Incorporation of the Registrant dated April 27, 1989
         (filed as Exhibit 3.13 to the Registrant's Annual
         Report on Form 10-K for the year ended December 31,
         1989, as amended, and incorporated herein by
         reference).

3.8   -  Certificate of Conversion of shares of Series A
         Convertible Preferred Stock of the Registrant dated
         September 18, 1990 (filed as Exhibit 3.14 to the
         Registrant's Annual Report on Form 10-K for the year
         ended December 31, 1989, as amended, and incorporated
         herein by reference).

3.9   -  Certificate of Exchange of shares of Series B
         Convertible Preferred Stock of the Registrant dated
         September 18, 1990 (filed as Exhibit 3.15 to the
         Registrant's Annual Report on Form 10-K for the year
         ended December 31, 1990, as amended, and incorporated
         herein by reference).

3.10  -  Certificate of Amendment of Certificate of
         Incorporation of the Registrant dated August 1, 1991
         (filed as Exhibit 3.16 to  the Registrant's Annual
         Report on Form 10-K for the year ended December 31,
         1991 and incorporated herein by reference).

3.11  -  Certificate of Designations of $2.25 Convertible
         Exchangeable Preferred Stock, par value $1.00 per
         share, of the Registrant, dated as of November 18,
         1991 (filed as Exhibit 3.17 to the Registrant's
         Annual Report on Form 10-K for the year ended
         December 31, 1991 and incorporated herein by
         reference).

3.12  -  Composite copy of the Bylaws of the Registrant as
         currently in effect (filed as Exhibit 4.8 to the
         Registrant's Registration Statement on Form S-3 (No.
         33-67130) and incorporated herein by reference).

4.1   -  Indenture governing the Senior Notes (filed as
         Exhibit 4.1 to the Registrant's Quarterly Report on
         Form 10-Q for the three-month period ended September
         30, 1993 and incorporated herein by reference).

4.2   -  Form of Senior Notes (included in Section 2.02 of the
         Indenture filed as Exhibit 4.1 to the Registrant's
         Quarterly Report on Form 10-Q for the three-month
         period ended September 30, 1993 and incorporated
         herein by reference).

10.1* -  Noble Drilling Corporation Short-Term Incentive
         Compensation Plan (filed as Exhibit 10.1 to the
         Registrant's Registration Statement on Form 10 (No.
         0-13857) and incorporated herein by reference).





<PAGE>   7
10.2* -  Noble Drilling Corporation 1985 Stock Option Plan
         (filed as Exhibit 4.1(b) to the Registrant's
         Registration Statement on Form S-8 (No. 33-3289), as
         amended, and incorporated herein by reference).

10.3* -  Amendment No. 1 to Noble Drilling Corporation 1985
         Stock Option Plan dated as of February 17, 1987
         (filed as Exhibit 10.3 to the Registrant's Annual
         Report on Form 10-K for the year ended December 31,
         1986, as amended, and incorporated herein by
         reference).

10.4  -  Amended and Restated Noble-National Joint Venture
         Partnership Agreement between the Registrant and
         National Enerdrill Corporation dated December 7, 1990
         (filed as Exhibit 10.4 to the Registrant's Annual
         Report on Form 10-K for the year ended December 31,
         1990 and incorporated herein by reference).

10.5  -  Limited Partnership Agreement between the Registrant
         and National Enerdrill Corporation dated as of
         January 16, 1992 (filed as Exhibit 10.5 to the
         Registrant's Annual Report on Form 10-K for the year
         ended December 31, 1991 and incorporated herein by
         reference).

10.6  -  Certificate of Limited Partnership of NN-1 Limited
         Partnership  (filed as Exhibit 10.6 to the
         Registrant's Annual Report on Form 10-K for the year
         ended December 31, 1991 and incorporated herein by
         reference).

10.7* -  Noble Drilling Corporation 1991 Stock Option and
         Restricted Stock Plan (filed as Exhibit 4.1 to the
         Registrant's Registration Statement on Form S-8 (No.
         33-46724) and incorporated herein by reference).

10.8* -  Noble Drilling Corporation 1987 Stock Option Plan
         (filed as Exhibit 10.7 to the Registrant's Annual
         Report on Form 10-K for the year ended December 31,
         1986, as amended, and incorporated herein by
         reference).

10.9* -  Noble Drilling Corporation Thrift Trust Agreement
         (filed as Exhibit 4.2 to the Registrant's
         Registration Statement on Form S-8 (No. 33-18966) and
         incorporated herein by reference).

10.10*-  Amendment No. 1 to the Noble Drilling Corporation
         Thrift Trust dated January 27, 1992 (filed as Exhibit
         10.11 to the Registrant's Annual Report on Form 10-K
         for the year ended December 31, 1991 and incorporated
         herein by reference).

10.11*-  Noble Drilling Corporation Thrift Plan, as amended
         and restated, dated July 27, 1989 (filed as Exhibit
         10.12 to the Registrant's Annual Report on Form 10-K
         for the year ended December 31, 1991 and incorporated
         herein by reference).

10.12*-  Amendment No. 1 to the Noble Drilling Corporation
         Thrift Plan dated February 13, 1992 (filed as Exhibit
         10.13 to the Registrant's Annual Report on Form 10-K
         for the year ended December 31, 1991 and incorporated
         herein by reference).

10.13*-  Directors' Option Agreements dated October 29, 1987,
         between the Registrant and each of Michael A. Cawley,
         Johnnie W. Hoffman, Sam Noble and John F. Snodgrass
         (filed as Exhibit 10.11 to the Registrant's Annual
         Report on Form 10-K for the year ended December 31,
         1988 and incorporated herein by reference).

10.14 -  Registration Rights Agreement dated as of January 29,
         1988 between the Registrant and General Electric
         Capital Corporation (filed as a part of Exhibit 2.1
         to the Registrant's Current Report on Form 8-K dated
         February 11, 1988 and incorporated herein by
         reference).

10.15 -  First Amendment to Registration Rights Agreement
         dated as of February 5, 1993 between the Registrant
         and General Electric Capital Corporation (filed as
         Exhibit 10.19 to the Registrant's





<PAGE>   8
         Annual Report on Form 10-K for the year ended
         December 31, 1992 and incorporated herein by
         reference).

10.16 -  Guarantee Agreement dated as of August 10, 1989
         between the Registrant and The Royal Bank of Canada
         (filed as Exhibit 10.28 to the Registrant's Annual
         Report on Form 10-K for the year ended December 31,
         1989, as amended, and incorporated herein by
         reference).

10.17 -  Credit Agreement dated as of October 29, 1990 between
         Noble Drilling (Canada) Ltd. and The Royal Bank of
         Canada (filed as Exhibit 10.27 to the Registrant's
         Annual Report on Form 10-K for the year ended
         December 31, 1991 and incorporated herein by
         reference).

10.18 -  Letter Agreement amending the Credit Agreement
         between Noble Drilling (Canada) Ltd. and The Royal
         Bank of Canada dated October 25, 1993.

10.19 -  Credit Agreement dated as of October 29, 1990 between
         Noble Drilling (U.K.) Ltd. and The Royal Bank of
         Canada (filed as Exhibit 10.28 to the Registrant's
         Annual Report on Form 10-K for the year ended
         December 31, 1991 and incorporated herein by
         reference).

10.20 -  Credit Agreement dated as of October 29, 1990 between
         Noble Enterprises Limited and The Royal Bank of
         Canada (filed as Exhibit 10.30 to the Registrant's
         Annual Report on Form 10-K for the year ended
         December 31, 1991 and incorporated herein by
         reference).

10.21 -  Letter Agreement amending the Credit Agreement
         between Noble Enterprises Limited and The Royal Bank
         of Canada dated October 25, 1993.

10.22 -  Credit Agreement dated as of July 30, 1992 between
         Noble Drilling (U.K.) Ltd. and The Royal Bank of
         Canada (filed as Exhibit 10.33 to the Registrant's
         Annual Report on Form 10-K for the year ended
         December 31, 1992 and incorporated herein by
         reference).

10.23 -  Letter Agreement amending the Credit Agreement
         between Noble Drilling (U.K.) Ltd. and The Royal Bank
         of Canada dated October 25, 1993.

10.24 -  Guarantee and Subordination Agreement dated as of
         July 30, 1992 between the Registrant and The Royal
         Bank of Canada (filed as Exhibit 10.34 to the
         Registrant's Annual Report on Form 10-K for the year
         ended December 31, 1992 and incorporated herein by
         reference).

10.25*-  Amendment No. 2 to the Noble Drilling Corporation
         Thrift Plan dated effective as of August 1, 1992
         (filed as Exhibit 4.2 to the Registrant's
         Registration Statement on Form S-8 (No. 33-50270)
         and incorporated herein by reference).

10.26 -  Amended and Restated Letter of Credit Agreement,
         dated as of October 25, 1993, among Portal Rig
         Corporation, Noble (Gulf of Mexico) Inc., NationsBank
         of Texas, N.A., as agent and as one of the "Banks"
         thereunder, and Marine Midland Bank, N.A., Bank of
         America National Trust and Savings Association, and
         Norwest Bank Minnesota, National Association
         (collectively, the "Banks") (filed as Exhibit 10.1 to
         the Registrant's Quarterly Report on Form 10-Q for
         the three-month period ended September 30, 1993 and
         incorporated herein by reference).

10.27 -  Assignment, Assumption and Amended and Restated
         Preferred Ship Mortgage, dated October 25, 1993, by
         Noble (Gulf of Mexico) Inc. to the Banks (filed as
         Exhibit 10.2 to the Registrant's Quarterly Report on
         Form 10-Q for the three-month period ended September
         30, 1993 and incorporated herein by reference).

10.28 -  Security Agreement and Assignment, dated October 25,
         1993, by Noble (Gulf of Mexico) Inc. to the Banks
         (filed as Exhibit 10.3 to the Registrant's Quarterly
         Report on Form 10-Q for the three-month period ended
         September 30, 1993 and incorporated herein by
         reference).





<PAGE>   9
10.29 -  Noble Support Agreement, dated October 25, 1993,
         among the Registrant and the Banks (filed as Exhibit
         10.4 to the Registrant's Quarterly Report on Form
         10-Q for the three-month period ended September 30,
         1993 and incorporated herein by reference.)

10.30*-  Noble Drilling Corporation 1992 Nonqualified Stock
         Option Plan for Non-Employee Directors (filed as
         Exhibit 4.1 to the Registrant's Registration
         Statement on Form S-8 (No. 33-62394) and
         incorporated herein by reference).

10.31*-  Amendment No. 3 to the Noble Drilling Corporation
         Thrift Plan dated effective as of January 1, 1994.

10.32*-  Amendment No. 2 to the Noble Drilling Corporation 
         Thrift Trust dated June 24, 1994.

22.1  -  Subsidiaries of the Registrant.

23.1  -  Consent of Arthur Andersen & Co.

99.1  -  Letter of Intent dated January 13, 1994 by and among
         the Registrant, Triton Engineering Services Company,
         Joseph E. Beall and George Bruce.

99.2  -  Financial Statements required by Form 11-K for the
         fiscal year ended December 31, 1993 with respect to
         the Noble Drilling Corporation Thrift Plan (including
         consent of Arthur Andersen & Co. regarding the
         incorporation by reference thereof).

________________________________

*   Management contract or compensatory plan or arrangement required to be
    filed as an exhibit hereto.






<PAGE>   1

                            AMENDMENT NO. 2 TO THE
                   NOBLE DRILLING CORPORATION THRIFT TRUST


        Pursuant to the provisions of Section 4.1 thereof, the Noble Drilling
Corporation Thrift Trust (the "Trust") is hereby amended in the following
respect only:

        The first sentence of Section 3.3 of the Trust is hereby amended by
restatement in its entirety to read as follows:
                
        The appointment of a successor trustee hereunder shall be accomplished
        by and shall take effect upon the delivery to the resigning or removed
        Trustee, as the case may be, of (a) an instrument in writing appointing
        such successor trustee, executed by the Company, and (b) an acceptance
        in writing of the office of successor trustee hereunder executed by the
        successor so appointed.


        IN WITNESS WHEREOF, this Amendment has been executed to be effective
this 24th day of June, 1994.
  

                                       NOBLE DRILLING CORPORATION

                                       By /s/ BYRON L. WELLIVER
                                          ___________________________________
                                          Title: Senior Vice President-Finance
                                                 and Treasurer


                                         BANK OF OKLAHOMA, N.A.
                                        

                                         By /s/ JEFFREY K. MACE
                                            ___________________________________
                                            Title: Vice President and Senior 
                                                   Trust Officer

<PAGE>   2
THE STATE OF TEXAS             
                         ss
COUNTY OF HARRIS     
                     
        BEFORE ME, the undersigned authority, a notary public in and for said
County and State, on this day personally appeared Byron L. Welliver, known to
me to be the person and office whose name is subscribed to the foregoing
instrument and acknowledged to me the same was the act of the said NOBLE
DRILLING CORPORATION, a Delaware corporation, and that he executed the same as
the act of such corporation for the purposes and consideration therein
expressed, and in the capacity therein stated.

        GIVEN UNDER MY HAND AND SEAL OF OFFICE, this 24th day of June, 1994.

 KATHERINE L. BRADLEY
MY COMMISSION EXPIRES                          /s/   KATHERINE L. BRADLEY
  October 28, 1997                           _____________________________
                                             Notary Public, State of Texas
   [notarial seal] 
My Commission expires:
      10/28/97
_____________________


THE STATE OF OKLAHOMA  
                         ss 
COUNTY OF TULSA       


        BEFORE ME, the undesigned authority, a notary public in and for said
County and State, on this day personally appeared Jeffrey K. Mace, known to me
to be the person and officer whose name is subscribed to the foregoing
instrument and acknowledged to me the same was the act of the said BANK OF
OKLAHOMA, N.A., a national banking association, and that he executed the same
as the act of such association for the purposes and consideration therein
expressed, and in the capacity therein stated.

        GIVEN UNDER MY HAND AND SEAL OF OFFICE, this 27th day of June, 1994.


   [notarial seal]
My Commission expires:
       6/23/98                                /s/    KATHY ANN LANOLE
______________________                     _______________________________
                                          Notary Public, State of Oklahoma

<PAGE>   1


     The Financial Statements required by Form 11-K for the fiscal years ended
December 31, 1993 and 1992 with respect to the Noble Drilling Corporation 
Thrift Plan are filed in paper format under cover of Form SE in accordance with
Instruction E to Form 11-K.





<PAGE>   2


                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the incorporation of
our report dated June 20, 1994, with respect to the Noble Drilling Corporation
Thrift Plan for the years ended December 31, 1993 and 1992, appearing on
sequentially numbered page 7 of the paper format portion of this filing under
cover of Form SE of this Form 10-K/A (Amendment No. 1) into the Prospectus
constituting part of the Registration Statement on Form S-8 (No. 33-18966) of
the Noble Drilling Corporation Thrift Plan.



                                                 /s/ ARTHUR ANDERSEN & CO.
                                                 -----------------------------
                                                     ARTHUR ANDERSEN & CO.




Houston, Texas
June 28, 1994







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