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




                                  July 21, 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 July 21, 2004, Kerr-McGee  Corporation  issued a press release
          announcing that it will hold a conference  call on Wednesday, July 28,
          2004, at 11:00 a.m. (EDT) to discuss its second-quarter 2004 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 July 21, 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: July 21, 2004