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 7, 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 9.   Regulation FD Disclosure
               On April 7, 2004,  Kerr-McGee  Corporation and Westport Resources
          Corporation  issued a joint press release announcing that their boards
          of directors have unanimously  approved a strategic merger. The merged
          company  will  be  known  as  Kerr-McGee   Corporation   and  will  be
          headquartered  in Oklahoma City. The press release is attached  hereto
          as an exhibit and is incorporated by reference herein.

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

          (c) Exhibits

          99.1 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 7, 2004