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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM 8-K

                                 CURRENT REPORT
     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


       DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): NOVEMBER 30, 2004


                                NOBLE CORPORATION
             (Exact name of Registrant as specified in its charter)


                                                                        
        CAYMAN ISLANDS                           0-13857                             98-0366361
(State or other jurisdiction of          (Commission file number)      (I.R.S. employer identification number)
 incorporation or organization)          


  13135 SOUTH DAIRY ASHFORD, SUITE 800    
           SUGAR LAND, TEXAS                                                      77478
(Address of principal executive offices)                                        (Zip code)



       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (281) 276-6100



Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[ ] Written communications pursuant to Rule 425 under the Securities Act 
    (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act 
    (17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))

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                                                                        FORM 8-K


ITEM 2.03.  CREATION OF A DIRECT FINANCIAL OBLIGATION OR AN OBLIGATION UNDER AN
            OFF-BALANCE SHEET ARRANGEMENT OF A REGISTRANT.

         As previously reported, Noble Drilling Corporation, an indirect
wholly-owned subsidiary of Noble Corporation, has an unsecured revolving bank
credit facility which was scheduled to mature on May 30, 2006 (the "Credit
Agreement"). Noble Corporation and one of its wholly-owned subsidiaries, Noble
Holding (U.S.) Corporation, have unconditionally guaranteed the performance of
Noble Drilling Corporation under the Credit Agreement.

         On November 24, 2004, Noble Corporation, Noble Holding (U.S.)
Corporation, Noble Drilling Corporation, and the various lending institutions
party to the Credit Agreement amended the Credit Agreement (by means of the
Second Amendment thereto) to increase the total commitment to $300,000,000 from
$200,000,000 effective on the Second Amendment Effective Date, as defined in the
Second Amendment, and to extend the maturity date of the Credit Agreement to
November 30, 2009.

         The foregoing summary description is subject to the complete text of
the Second Amendment, which is filed as Exhibit 4.1 to this Form 8-K, and is
qualified in its entirety by reference thereto.

ITEM 9.01.  FINANCIAL STATEMENTS AND EXHIBITS.

         (c) Exhibits

             The information required by this Item 9.01 is set forth in the 
             Index to Exhibits accompanying this current report and is 
             incorporated herein by reference.

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                                                                        FORM 8-K


                                   SIGNATURES

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

                             NOBLE CORPORATION



Date: November 30, 2004      By: /s/ MARK A. JACKSON                     
                                 -----------------------------------------------
                                 Mark A. Jackson,
                                 Senior Vice President, Chief Financial Officer,
                                 Treasurer, Controller and Assistant Secretary


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                                                                        FORM 8-K

                                INDEX TO EXHIBITS


Exhibit No.       Description
-----------       -----------

Exhibit 4.1       Second Amendment, dated November 24, 2004, among Noble 
                  Corporation, Noble Holding (U.S.) Corporation, Noble Drilling
                  Corporation, various lending institutions party to the Credit
                  Agreement, Wells Fargo Bank, N.A. (as successor to Wells Fargo
                  Bank Texas, National Association) and SunTrust Bank, as
                  Documentation Agents, The Bank of Tokyo-Mitsubishi, Ltd. and
                  Westdeutsche Landesbank Girozentrale, New York Branch, as
                  Syndication Agents, The Bank of Tokyo-Mitsubishi, Ltd. and
                  Nordea Bank Finland Plc, New York Branch, as Co-Lead
                  Arrangers, Nordea Bank Finland Plc, as Bookrunner, and Nordea
                  Bank Finland Plc, New York Branch (as the replacement
                  Administrative Agent to Nordea Bank Norge ASA, New York
                  Branch, as successor by merger to Christiania Bank og
                  Kreditdasse ASA, New York Branch), as Administrative Agent.


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