Pioneer Natural Resources Company (NYSE:PXD) today announced that Scott Sheffield, Chairman and CEO, will present at the FBR Capital Markets Fall Investor Conference on December 1, 2009 at 9:15 a.m. E.T.

Any interested person may listen to the live presentation and view the presentation slides during the conference, or hear an archived version afterwards, by logging on to Pioneer''s website at www.pxd.com, selecting ''Investors,'' and then selecting ''Investor Presentations.''

Pioneer 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 www.pxd.com.

Contacts:

Pioneer Natural Resources Contacts:
Investors:
Frank Hopkins, 972-969-4065
or
Matt Gallagher, 972-969-4017
or
Nolan Badders, 972-969-3955
or
Media and Public Affairs:
Susan Spratlen, 972-969-4018