Questar Corporation operates as an integrated natural gas company in the United States. It distributes natural gas as a public utility in Utah, southwestern Wyoming, and a small portion of southeastern Idaho serving 975,200 sales and transportation customers; and owns and operates distribution systems comprising 28,239 miles of street mains, service lines, and interconnecting pipelines, as well as has long-term franchises granted by communities and counties in its service area. The company also develops, produces, and delivers natural gas from its properties located in the Rocky Mountain region, primarily in the Vermillion, Pinedale, Moxa Arch, and Uinta Basin producing fields; produces and sells crude oil and natural gas liquids; and provides natural gas transportation and underground-storage services in Utah, Wyoming, and Colorado. It owns and operates approximately 2,670 miles of interstate pipeline with total firm-capacity commitments of 5,198 Mdth per day transporting natural gas from Rocky Mountain producing areas to other pipeline systems, distribution systems, and other utility systems; and the Overthrust pipeline in southwestern Wyoming and the eastern segment of Southern Trails Pipeline, a 487-mile line that extends from the Blanco hub in the San Juan Basin to just inside the California state line near the Arizona border. In addition, the company owns and operates 50% of the White River Hub facilities that connect with six interstate-pipeline systems and a processing plant near Meeker, Colorado; the Clay Basin storage facility, an underground-storage reservoir in the Rocky Mountain region; gathering lines and processing facilities near Price, Utah, which provide gas-processing services; and offers wellhead automation and measurement services for Rockies oil and gas producers. Questar Corporation was founded in 1922 and is headquartered in Salt Lake City, Utah.