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Diversified Energy Company plc, formerly Diversified Gas & Oil plc, is a gas and oil production company operating in the Appalachian Basin in the United States.
Paramount Petroleum Corporation is one of the leading companies in the Energy & Utilities sector.
Innospec Inc., formerly known as Octel Corporation and Associated Octel Company, Ltd.,
Spencer Oil Company is a Roseville, MI-based company in the Energy & Utilities sector.
Gulf Coast Energy is a Houston, TX-based company in the Energy and Utilities sector.