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 28, 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 28,  2004  Kerr-McGee  Corporation  will hold a security
          analyst  meeting to  discuss  its  first-quarter  2004  financial  and
          operating results and expectations for the future. During the meeting,
          the company will discuss certain  expectations for oil and natural gas
          production volumes for the year 2004. A table providing the projection
          ranges  of 2004  average  daily  oil and  natural  gas  production  is
          attached hereto as an exhibit and is incorporated by reference herein.

Item 12.  Results of Operations and Financial Condition

               Kerr-McGee   Corporation   has   posted   on  its   website,   at
          http://www.kerr-mcgee.com, a table containing a reconciliation of GAAP
          to  Adjusted  Net Income for the  year-to-date  and  quarterly  fiscal
          periods  ended  March 31,  2004.  The table is  attached  hereto as an
          exhibit and is incorporated by reference herein.  (This report is also
          furnished pursuant to Item 9.)

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

          (c) Exhibits

          99.1 Projected Daily Average Production Volumes
          99.2 Reconciliation of GAAP to Adjusted Net Income

                                   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 28, 2004