Pioneer Natural Resources Company (NYSE:PXD) today announced that
Scott Sheffield, Chairman and CEO, will present at the Barclays Capital
CEO Energy-Power Conference on Wednesday, September 15, 2010 at 9:05
a.m. ET.

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presentation slides during the conference, or hear an archived version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 primarily in
the United States. For more information, visit Pioneer’s website at www.pxd.com.