Dynegy Inc. is an electric company based in Houston, Texas, in the United States. It owns and operates a number of power stations in the U.S., all of which are natural gas-fueled or coal-fueled. The company is located at 601 Travis Street in Downtown Houston. The company was founded in 1984 as Natural Gas Clearinghouse. It was originally an energy brokerage, buying and selling natural gas supplies. It changed its name to NGC Corporation in 1995 after entering the electrical power generation business.