The company is a wholly owned subsidiary of energen corporation, distributes and transports natural gas in the state of Alabama. The company purchases natural gas through interstate suppliers and marketers and distributes it to residential, commercial, industrial and other end-users. There are two main service categories under which gas is supplied to customers namely, interruptible and firm. The company serves approximately 188 cities and communities in 27 counties in central and north Alabama. The company served an average of 427,413 residential customers and 35,463 commercial, industrial and transportation customers in 2003. The distribution system of the company includes 9,810 miles of main and more than 11,494 miles of service lines, odorization and regulation facilities and customer meters. The company also operates two liquified natural gas facilities.