Dominion Energy subsidiaries

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 945,971 sales and transportation customers; and owns and operates distribution systems comprising 27,612 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; provides interstate natural gas-transportation and underground-storage services in Utah, Wyoming, and Colorado; and offers wellhead automation and measurement services for Rockies oil and gas producers. It owns and operates approximately 2,662 miles of interstate pipeline with total firm-capacity commitments of 5,121 Mdth per day transporting natural gas from Rocky Mountain producing areas to other pipeline systems

Hope Gas, Inc. distributes natural gas to homes and businesses in West Virginia. The company serves customers throughout 32 counties in West Virginia by using an extensive 2,800 mile pipeline system. Hope Gas, Inc. was formerly known as Consolidated Gas Supply Corporation and changed its name to Hope Gas, Inc. in 1984. The company was incorporated in 1898 and is based in Clarksburg, West Virginia. Hope Gas, Inc. operates as a subsidiary of Dominion Energy Marketing, Inc.

Questar Regulated Services Co Inc. offers natural gas distribution, transmission, storage, and nonregulated retail energy services. The company is based in Salt Lake City, Utah. Questar Regulated Services Co Inc. operates as a subsidiary of Dominion Questar Corporation.