Dominion Virginia Power is one of the largest investor-owned electric utilities in the United States. It delivers power to more than 2 million homes and businesses in Virginia and North Carolina and is active nationally in wholesale power sales and energy services. Dominion Virginia Power also engages in off-system wholesale purchase and sales of electricity and natural gas. Federal Energy Regulatory Commission and the State Corporation Commission of Virginia are the principal regulators of its electric operations. Dominion Virginia Power is a part of Dominion, which is one of the largest producers and transporters of energy in North America. The parent company operates one of largest natural gas storage facilities with over 975 billion cubic feet of storage capacity and serves retail energy customers in nearly 10 states in the U.S.