Pioneer Natural Resources Company (“Pioneer”) (NYSE:PXD) today announced its fourth quarter 2012 earnings press release is scheduled to be issued after the close of trading on the New York Stock Exchange on Wednesday, February 13, 2013. A conference call is scheduled for Thursday, February 14, at 9:00 a.m. Central Time to discuss the fourth quarter results. Instructions on how to listen to the call and view the accompanying presentation are shown below. Internet: www.pxd.com Select “Investors” then “Earnings & Webcasts” to listen to the discussion and view the presentation. Telephone: Dial (877) 718-5108 confirmation code: 7431932 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 March 11 by dialing (888) 203-1112, confirmation code: 7431932. Pioneer is a large independent oil and gas exploration and production company, headquartered in Dallas, Texas, with operations in the United States. For more information, visit Pioneer’s website at www.pxd.com.