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




                                  May 27, 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 May 27, 2004,  Kerr-McGee  Corporation  issued a press release
          announcing that Dave Hager, senior vice president  responsible for oil
          and gas  exploration and production for Kerr-McGee  Corporation,  will
          speak at the UBS 2004 Global Oil and Gas  Conference  at 7:40 a.m. MST
          (10:40  a.m.  EDT) on June 3rd.  The  webcast  and slides  used in the
          presentation   will  be   available   on   Kerr-McGee's   website   at
          www.kerr-mcgee.com.

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

          (c) Exhibits

          99.1 Press Release dated May 27, 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: May 27, 2004