Dominion is one of the nation's largest producers of energy, with an energy portfolio of about 26,500 megawatts of generation and 7,800 miles of natural gas transmission pipeline. Dominion also operates the nation's largest underground natural gas storage system with about 950 billion cubic feet of storage capacity and serves retail energy customers in 11 states.
Dominion Energy, the company's electric power production and natural gas transportation and storage unit, includes two businesses: Dominion Generation and Dominion Transmission. Dominion Generation, based in Richmond, manages the company's regulated generating stations. Dominion Transmission, formerly CNG Transmission Corp., is based in Clarksburg, W.Va., and operates gas pipelines and North America's largest natural gas storage system. The company's unregulated generation is also part of Dominion Energy.