Pioneer Natural Resources Co.
| New York Stock Exchange: PXD
Pioneer Natural Resources Co. is an independent oil and gas exploration and production company with operations in the U.S. It is a holding company whose assets consist of direct and indirect ownership interests in, and whose business is conducted substantially through, its subsidiaries. The company is one of the active drillers in Texas Spraberry/Wolfcamp oil field in the Permian Basin and the Eagle Ford Shale play in South Texas. It is also one of the natural gas operators in the Rockies and Mid-Continent regions with assets in the coal bed methane-rich Raton Basin as well as in the Hugoton and Texas Panhandle gas fields. Its operations include ongoing drilling programs in Texas liquids-rich Barnett Shale Combo play and in Alaska's Oooguruk field, where the company became an independent operator to produce oil on the North Slope. Pioneer Natural Resources was founded in August 1997 and is headquartered in Irving, TX.