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Dominion Energy, Inc., formerly Dominion Resources, Inc., is a producer and transporter of energy. Dominion is focused on its investment in regulated electric generation, transmission and distribution and regulated natural gas transmission and distribution infrastructure. It operates through three segments: Dominion Virginia Power operating segment (DVP), Dominion Generation, Dominion Energy, and Corporate and Other. The DVP segment includes regulated electric distribution and regulated electric transmission. The Dominion Generation segment includes regulated electric fleet and merchant electric fleet. The Dominion Energy segment includes gas transmission and storage, gas gathering and processing, liquefied natural gas import and storage, and nonregulated retail energy marketing. As of December 31, 2016, Dominion served utility and retail energy customers, and operated an underground natural gas storage system with approximately one trillion cubic feet of storage capacity.