Questar Corporation is an integrated natural gas holding company with three lines of business operated through wholly owned subsidiaries: Wexpro Company, Questar Pipeline and Questar Gas. Wexpro develops, produces and delivers cost-of-service reserves for gas utility affiliate Questar Gas under the terms of the Wexpro Agreement, a long-standing comprehensive agreement with the states of Utah and Wyoming. Wexpro's properties are located in the Rocky Mountain region, primarily in the Vermillion, Pinedale, Moxa Arch, and Uinta producing areas. The Company participated in 21 third-party-operated wells drilled in Pinedale during 2013 and will continue to participate in wells drilled in the area during 2014. In the first quarter of 2013, the company drilled 4 wells in the Vermillion Basin and moved from Vermillion to Pinedale. Wexpro faces competition in its business, including the marketing of oil, and obtaining goods, services and labor. Its growth strategy depends, in part, on its ability to develop reserves in a low-cost and efficient manner. Questar Pipeline provides natural gas-transportation and underground-storage services in Utah, Wyoming and Colorado. Questar Pipeline and its subsidiaries operate 2,662 miles of interstate pipeline, including 10 miles owned by a third party. Questar Pipeline owns and operates the Clay Basin storage facility, the largest underground-storage reservoir in the Rocky Mountain region. Questar Pipeline competes for market growth with other natural gas-transmission companies in the Rocky Mountain region and with other companies providing natural gas-storage services. Questar Gas distributes natural gas as a public utility in Utah, southwestern Wyoming and a small portion of southeastern Idaho. Questar Gas has long-term contracts with Questar Pipeline for transportation and storage capacity at Clay Basin and three peak-day storage facilities. Questar Gas currently does not face direct competition from other distributors of natural gas for residential and commercial customers in its service territory. The Company's exploration and production operations are subject to various government controls and regulation at the federal, state and local levels.