Exhibit  99.1



     Kerr-McGee Schedules First-Quarter Earnings Conference Call and Webcast
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     OKLAHOMA CITY (April 10, 2001) - Kerr-McGee Corp.  (NYSE:  KMG) will hold a
conference  call  on  April  25,  2001,  at  11:00  a.m.  EDT,  to  discuss  its
first-quarter  2001 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  212-896-6011.  A replay  of the call will be
available  for  48  hours  at   800-633-8284,   #16790785  within  the  U.S.  or
858-812-6440, #16790785, outside the U.S. The webcast replay will be temporarily
archived on the company's website.
     Kerr-McGee is an Oklahoma  City-based energy and inorganic chemical company
with worldwide operations and assets of $7.7 billion.

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CONTACT: Debbie Schramm
         (405) 270-2877