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 30, 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

               Kerr-McGee   Corporation   has   posted   on  its   website,   at
          http://www.kerr-mcgee.com/pdf/adjusted.pdf,   a  table   containing  a
          reconciliation of GAAP to Adjusted Net Income for the year-to-date and
          quarterly  fiscal  periods ended March 31, 2003. The table is attached
          hereto as an exhibit and is  incorporated by reference  herein.  (This
          report is also filed  pursuant  to Item 12 Results of  Operations  and
          Financial  Condition in accordance  with SEC Release Nos.  33-8216 and
          34-47583.)

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

          (c) Exhibits

          99.1 Table

                                   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 30, 2003