TECO Energy, Inc., through its subsidiaries, engages in diversified energy-related operations in the United States. The company’s activities primarily include generation, purchase, transmission, distribution, and sale of electric energy. The company provides retail electric services to approximately 661,000 customers in the west central Florida. It also purchases, distributes, and sells natural gas to approximately 332,000 customers, including residential, commercial, industrial, and electric power generation customers in Florida. In addition, TECO Energy owns interests in coal processing and loading facilities, synthetic fuel production facilities, and mineral rights, as well as owns or operates surface and underground mines in eastern Kentucky, Tennessee, and Virginia; and provides waterborne transportation, storage, and transfer services of coal and other dry-bulk commodities. The company was founded in 1899 and is headquartered in Tampa, Florida.