Company Profile For Ameren Corporation

Ameren Corporation (Ameren) is a holding company. Ameren’s subsidiaries include Union Electric Company (UE), Central Illinois Public Service Company (CIPS), Ameren Energy Generating Company (Genco), CILCORP Inc. (CILCORP) and Illinois Power Company (IP). These subsidiaries operate rate-regulated electric generation, transmission and distribution businesses, rate-regulated natural gas transmission and distribution businesses, and non-rate-regulated electric generation businesses in Missouri and Illinois. Ameren has three segments: Missouri Regulated, Illinois Regulated and Non-rate-regulated Generation. On February 29, 2008, UE’s 40% ownership interest and Development Company’s 40% ownership interest in Electric Energy, Inc. (EEI) were transferred to this Resources Company.

BRIEF: For the nine months ended 30 September 2009, Ameren Corporation's revenues decreased 9% to $5.42B. Net income decreased 3% to $533M. Revenues reflect a decrease in income from Electric and lower revenue from Gas division. Net income was partially offset by lower purchased power expenses, the absence of coal contract settlement expenses, a decrease in cost of gas purchased for resale and lower other operations & maintenance costs.