As the largest natural gas distributor in Alabama, Alagasco delivers clean-burning, energy-efficient natural gas to industries, commercial businesses and residential homes. We care about our customers and want to make it easy for you to do business with us.Alabama Gas Corporation, Alagasco, headquartered in Birmingham, Alabama, is the largest natural gas utility in north and central Alabama that provides energy to 420,000 homes and businesses. Its history dates back more than 160 years. It has operating divisions in Anniston, Birmingham, Gadsden, Montgomery, Opelika, Selma, and Tuscaloosa.