Pioneer Natural Resources Company is an oil and gas exploration and production company. The Company explores for, develops and produces oil, natural gas liquids (NGLs) and gas within the United States, with operations primarily in the Permian Basin in West Texas, the Eagle Ford Shale play in South Texas, the Raton field in southeast Colorado and the West Panhandle field in the Texas Panhandle. As of December 31, 2016, the Company owned interests in eight gas processing plants and nine treating facilities. As of December 31, 2016, its Spraberry/Wolfcamp field covered approximately 800,000 gross acres (690,000 net acres). The Company completed 12 Eagle Ford Shale wells during the fiscal year ended December 31, 2016. As of December 31, 2016, the Company owned approximately 185,000 gross acres (165,000 net acres) in the center of the Raton Basin. As of December 31, 2016, the Company's gas had an average energy content of 1,400 British thermal unit (Btu).