Pioneer Natural Resources Company operates as an independent oil and gas exploration and production company in the United States. The company explores for, develops, and produces oil, natural gas liquids (NGLs), and gas. It has operations in the Midland Basin in West Texas. As of December 31, 2021, the company had proved undeveloped reserves and proved developed non-producing reserves of 130 million barrels of oil, 92 million barrels of NGLs, and 462 billion cubic feet of gas; and owned interests in 11 gas processing plants. Pioneer Natural Resources Company was founded in 1997 and is headquartered in Irving, Texas.