Gulf Power Company (GPC) (NYSE: GUI) is a U.S. investor-owned electric utility with all of its common stock owned by Atlanta-based Southern Company. Gulf Power Company is headquartered in Pensacola, Florida, and has a service territory that spans 7,550 square miles (19,600 km2) in 10 counties and 71 towns in northwest Florida. Gulf Power has approximately 428,000 customers in Florida. Gulf Power Company owns 1,600 miles (2,600 km) of transmission lines and 7,636 miles (12,289 km) of distribution lines (1,748 underground) that stretch from the western Alabama border to the Apalachicola River and from the northern Alabama border to the Gulf of Mexico. Gulf Power serves 394,772 retail customers directly and another 14,128 customers through the wholesale delivery of electricity to one investor-owned electric utility and one municipality. Gulf Power Company is the largest single taxpayer in northwest Florida. The company’s city, county, state and federal taxes totaled $132.4 million for 2007 – amounting to 10.5 cents out of every dollar earned by the company or $311 per customer. In 2007, the company supported local agencies, chambers of commerce, economic development groups and the United Way as well as other charitable organizations with nearly $1.2 million. Gulf Power employees also contributed more than $80,000 to various philanthropies in northwest Florida.