September 22, 2008

Pioneer Confirms Third Quarter 2008 Earnings Press Release Date and Conference Call

Pioneer Natural Resources Company (NYSE:PXD) today announced its third quarter 2008 earnings press release is scheduled to be issued after the close of trading on the New York Stock Exchange on Tuesday, November 4, 2008.

A conference call is scheduled for Wednesday, November 5, 2008 at 9:00 a.m. CT to discuss the third quarter results. Instructions on how to listen to the call and view the accompanying presentation are shown below.

 Internet: Select "Investors", then "Earnings Calls & Webcasts" to listen to the discussion and view the presentation.  Telephone: Dial (877) 879-6209, confirmation code: 3324323, five minutes before the call. View the presentation via Pioneer's internet address above. 

A replay of the webcast will be archived on Pioneer's website. A telephone replay will be available through November 26 by dialing (888) 203-1112, confirmation code: 3324323.

Pioneer Natural Resources Company is a large independent oil and gas exploration and production company, headquartered in Dallas, Texas, with operations in the United States, South Africa and Tunisia. For more information, visit Pioneer's website at