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 25, 2003
               --------------------------------------------------
               (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 25, 2003, Kerr-McGee  Corporation issued a press release
          announcing  that it will hold a conference  call on April 30, 2003, at
          11:00 a.m.  (EDT) to discuss  its  first-quarter  2003  financial  and
          operating results, and expectations for the future. Interested parties
          may listen to the call via Kerr-McGee's website at  www.kerr-mcgee.com
          or by calling 888-482-0024,  within the United States or 617-801-9702,
          outside the United States.  The password for both dial-in numbers will
          be  "Kerr-McGee."  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 25, 2003

                                   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 25, 2003