QEP Resources, Inc., through its subsidiaries, operates as an independent oil and natural gas exploration and production company. The company acquires, explores, develops, and produces natural gas, oil, and natural gas liquids in the Pinedale Anticline in western Wyoming; the Haynesville/Cotton Valley area in northwestern Louisiana; the Midcontinent area with properties primarily in Oklahoma and Texas; the Uinta Basin in eastern Utah; and the Rockies Legacy, which includes the Bakken/Three Forks area in western North Dakota and other properties in Wyoming. As of December 31, 2011, it had estimated proved reserves of 3,614 billion cubic feet of gas equivalent. The company markets natural gas to various customers, including gas-marketing firms, industrial users, and local-distribution companies. It also offers midstream field services comprising natural gas gathering, processing, and treating services; and midstream services to third-party customers, including major and independent producers. In addition, the company markets affiliate and third-party natural gas, oil, and natural gas liquids on markets in the Rocky Mountains, Pacific Northwest, and Midcontinent; provides risk-management services; and owns and operates an underground gas-storage reservoir in southwestern Wyoming. QEP Resources, Inc. is headquartered in Denver, Colorado.