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




                                  April 8, 2004
               --------------------------------------------------
               (Date of Report - Date of earliest event reported)





                             KERR-McGEE CORPORATION
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)


   Delaware                       1-16619                         73-1612389
--------------            ------------------------           -------------------
  (State of               (Commission File Number)              (IRS Employer
Incorporation)                                               Identification No.)


           Kerr-McGee Center
        Oklahoma City, Oklahoma                                        73125
----------------------------------------                            ----------
(Address of principal executive offices)                            (Zip Code)



                                 (405) 270-1313
                         -------------------------------
                         (Registrant's telephone number)


Item 5.   Other Events and Regulation FD Disclosure

               On April 7, 2004,  Kerr-McGee  Corporation and Westport Resources
          Corporation  announced that their Boards of Directors have unanimously
          approved a strategic  merger and the  companies  have  entered into an
          Agreement  and  Plan  of  Merger.  Attached  hereto  as  exhibits  and
          incorporated by reference  herein are the Agreement and Plan of Merger
          and the Voting Agreements and a Registration  Rights Agreement entered
          into in connection  therewith.  Also attached hereto as an exhibit and
          incorporated  by reference  herein is the Press Release dated April 7,
          2004.

Item 7.   Financial Statements, Pro Forma Financial Information and Exhibits

          (c) Exhibits

          99.1   Agreement and Plan of Merger,  dated as of April 6, 2004, among
                 Kerr-McGee  Corporation,  Kerr-McGee  (Nevada) LLC and Westport
                 Resources Corporation.
          99.2   Voting  Agreement,  dated as of April 6, 2004, among Kerr-McGee
                 Corporation,  Belfer Corp., Renee Holdings  Partnership,  L.P.,
                 Vantz Limited Partnership, LDB Two Corp., Belfer Two Corp., Liz
                 Partners, L.P.
          99.3   Voting  Agreement,  dated as of April 6, 2004, among Kerr-McGee
                 Corporation and EQT  Investments,  LLC. 99.4 Voting  Agreement,
                 dated as of April 6, 2004,  among  Kerr-McGee  Corporation  and
                 Medicor Foundation.
          99.5   Voting  Agreement,  dated as of April 6, 2004, among Kerr-McGee
                 Corporation and Westport Energy LLC.
          99.6   Voting  Agreement,  dated as of April 6, 2004, among Kerr-McGee
                 Corporation and Donald D. Wolf.
          99.7   Registration Rights Agreement, dated as of April 6, 2004, among
                 Kerr-McGee Corporation, Westport Energy LLC, Medicor Foundation
                 and EQT Investments, LLC.
          99.8   Press Release dated April 7, 2004.


                                   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.


                                              KERR-MCGEE CORPORATION


                                              By:  (John M. Rauh)
                                                   -----------------------------
                                                   John M. Rauh
                                                   Vice President and Controller

Dated: April 8, 2004