The Empire District Electric Company, together with its subsidiaries, engages in the electricity, gas, and other businesses. Its Electricity segment engages in the generation, purchase, transmission, distribution, and sale of electricity in Missouri, Kansas, Oklahoma, and Arkansas. It generates electricity from steam, hydro, coal, and natural gas with fuel oil and tire-derived fuel; and provides water services in Missouri. This segment supplies electricity to approximately 166,500 customers, which comprise residential, commercial, industrial, wholesale on-system, and wholesale off-system, as well as public authorities. As of December 31, 2011, it had generating facilities with an aggregate generating capacity of 1,392 megawatts; transmission system consisting of approximately 22 miles of 345 kV lines, 441 miles of 161 kV lines, 745 miles of 69 kV lines, and 81 miles of 34.5 kV lines; and distribution system comprising approximately 6,842 miles of lines. This segment also owns and operates water pumping facilities and distribution systems that comprise approximately 87 miles of water mains in 3 communities in Missouri. The company’s Gas segment distributes natural gas to 44 communities and 315 transportation customers in northwest, north central, and west central Missouri. This segment serves approximately 44,000 customers. As of December 31, 2011, its principal gas utility properties consist of approximately 87 miles of transmission mains and approximately 1,130 miles of distribution mains. The company’s Other segment engages in leasing fiber optics cable and equipment. The Empire District Electric Company was founded in 1909 and is based in Joplin, Missouri.