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Piedmont Natural Gas Company, Inc., an energy services company, engages in the distribution of natural gas to residential, commercial, industrial, and power generation customers in North Carolina, South Carolina, and Tennessee. It also operates energy-related businesses, including unregulated retail natural gas marketing, regulated interstate natural gas storage, and intrastate natural gas transportation.
Marshall Municipal Utilities is a Marshall, MN-based company in the Energy & Utilities sector.
Questar Corporation (Questar) is a Rockies-based integrated natural gas holding company. Questar operates through its wholly owned subsidiaries: Wexpro Company (Wexpro), Questar Pipeline Company (Questar Pipeline) and Questar Gas Company (Questar Gas). Wexpro develops and produces natural gas on behalf of Questar Gas. Questar Pipeline operates interstate natural gas pipelines and storage facilities in the western United States and provides other energy services.
McCone Electric Co-op., Inc. is a Wolf Point, MT-based company in the Energy & Utilities sector.
York Electric Cooperative is a York, SC-based company in the Energy and Utilities sector.