The Southern Company (Southern Company) is a holding company. The Company owns all of the stock of the traditional operating companies and Southern Power Company (Southern Power), and owns other direct and indirect subsidiaries. Southern Company's segments are the sale of electricity by the four traditional operating companies and Southern Power. The primary business of the Southern Company system is electricity sales by the traditional operating companies and Southern Power. The four traditional operating companies: Alabama Power Company (Alabama Power), Georgia Power Company (Georgia Power), Gulf Power Company (Gulf Power) and Mississippi Power Company (Mississippi Power), are vertically integrated utilities providing electric service in four Southeastern states. It also has interests in the Southern Communications Services, Inc., Southern Nuclear Operating Company, Inc., Southern Company Services, Inc., Southern Company Holdings, Inc., and other direct and indirect subsidiaries.