Stephen E. Parks

Dominion Energy Questar Corp. engages in the manufacturing and trade of natural gas. Its activities include gas development and production; interstate gas transportation and storage; and retail distribution of gas. The company was founded in 1922 and is headquartered in Salt Lake City, UT.

Questar Gas Co. engages in the provision of retail natural gas-distribution services. The firm offers home services, business services, and builder services. The company was founded in 1929 and is headquartered in Salt Lake City, UT.

MountainWest Pipeline LLC engages in the provision of natural gas transportation and underground storage services. It operates interstate natural gas pipelines and storage facilities. The firm provides transmission services, midstream services, and energy services. The company was founded in 1975 and is headquartered in Salt Lake City, UT.

Questar Market Resources, Inc. explores and develops oil and natural gas resource properties.The company through its subsidiaries, primarily engages in the acquisition, exploration, development, and production of oil, natural gas, and natural gas liquids in the Rocky Mountain and Mid-continent regions of the United States. It sells natural gas to various customers, including gas-marketing firms, industrial users, and local-distribution centers. Questar Market Resources is headquartered in Salt Lake City, UT.