. . "7.531E9"^^ . "Ameren Corporation was created December 31, 1997 by the merger of Missouri's Union Electric Company (formerly NYSE: UEP) and the neighboring Central Illinois Public Service Company (CIPSCO Inc. holding, formerly NYSE: CIP). It is now a holding company for several power companies and energy companies. The company is based in St."@en . "9323"^^ . . "2.3645E10"^^ . . "Ameren Corporation"@en . . . "1997Z"^^ . "7.919E9"^^ . "5.19E8"^^ . . "1.241E9"^^ . .