Piedmont Natural Gas Company, Inc., a public utility company, distributes natural gas. It is also involved in the natural gas and fuel oil supply, transportation, and storage activities. The company distributes natural gas through transmission pipelines and distribution mains. It serves approximately one million residential, commercial, industrial, power generation, and municipal customers located in North Carolina, South Carolina, and Tennessee. The company was incorporated in 1950 and is based in Charlotte, North Carolina. Piedmont Natural Gas Company, Inc. is a subsidiary of Duke Energy Corporation.
Progress Energy, Inc., a utility holding company, engages in the generation, transmission, distribution, and sale of electricity in portions of North Carolina and South Carolina and in portions of Florida. The company has approximately 22,000 megawatts (MW) of regulated electric generation capacity and serves approximately 3.1 million retail electric customers, as well as other load-serving entities. Segments The company's segments are Carolina Power & Light Company (PEC) and Florida Power Corporation (PEF). PEC PEC is a regulated public utility primarily engaged in the generation, transmission, distribution and sale of electricity in portions of North and South Carolina.