Great Plains Energy Incorporated (Great Plains Energy) is a public utility holding company. The Company does not own or operate any assets other than the stock of its subsidiaries. Great Plains Energy's wholly owned direct subsidiaries with operations or active subsidiaries includes Kansas City Power & Light Company (KCP&L), and KCP&L Greater Missouri Operations Company (GMO). The Company is engaged in the business segment of electric utility. The electric utility segment consists of KCP&L, a regulated utility, and GMO's regulated utility operations, which include its Missouri Public Service and St. Joseph Light & Power (L&P) divisions. Electric utility serves approximately 825,300 customers located in western Missouri and eastern Kansas. During the year ended December 31, 2012, electric utility's retail revenues averaged approximately 90% of its total operating revenues. During 2012, electric utility's total electric revenues were 100% of Great Plains Energy's revenues.