Exhibit 99.1




     Kerr-McGee Schedules Interim First-Quarter Conference Call and Webcast
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         OKLAHOMA CITY (March 16, 2001) - Kerr-McGee Corp. (NYSE: KMG) will hold
a  conference  call at 11 a.m.  ET,  March 21,  2001,  to  discuss  its  interim
first-quarter 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,  #18283777  within the United States or
858-812-6440,  #18283777,  outside the United States. 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