Southern California Gas (SoCalGas) figures being the largest gas utility in the US gives it the right to call itself "The Gas Company." The utility, an indirect subsidiary of Sempra Energy, distributes natural gas to 5.9 million residential, commercial, and industrial meters (21.6 million customers) in more than 500 communities throughout the southern half of California. SoCalGas’ natural gas facilities include 2,962 miles of transmission and storage pipelines, 50,097 miles of distribution pipelines and 47,524 miles of service pipelines. It also includes 11 transmission compressor stations and 4 underground natural gas storage reservoirs with a combined working capacity of 137 billion cu. ft.