Exhibit 21.1
SUBSIDIARIES OF AMEREN CORPORATION
AT DECEMBER 31, 2007
State or Jurisdiction | ||
Name | of Organization | |
Ameren Corporation | Missouri | |
Ameren Development Company | Missouri | |
Missouri Central Railroad Company | Delaware | |
Gateway Energy Systems, L.C. | Missouri | |
Gateway Energy WGK Project, L.L.C. | Missouri | |
Ameren Energy Resources Company* | Illinois | |
Ameren Energy Development Company** | Illinois | |
Ameren Energy Generating Company | Illinois | |
Coffeen and Western Railroad Company | Illinois | |
Ameren Energy Marketing Company | Illinois | |
Illinois Materials Supply Co. | Illinois | |
Electric Energy, Inc. (40% interest)*** | Illinois | |
Midwest Electric Power Inc. | Illinois | |
Joppa and Eastern Railroad Company | Illinois | |
Met South, Inc. | Illinois | |
Massac Enterprises LLC | Illinois | |
AmerenEnergy Medina Valley Cogen, L.L.C. | Illinois | |
Ameren Energy Fuels and Services Company | Illinois | |
Cowboy Railroad Development Co. L.L.C. | Arkansas | |
Ameren Illinois Transmission Company | Illinois | |
Ameren Services Company | Missouri | |
Central Illinois Public Service Company, d/b/a AmerenCIPS | Illinois | |
CIPSCO Investment Company | Illinois | |
CIPSCO Leasing Company | Illinois | |
CILCORP INC. | Illinois | |
Central Illinois Light Company, d/b/a AmerenCILCO | Illinois | |
AmerenEnergy Resources Generating Company | Illinois | |
CLC Aircraft Leasing LLC | Delaware | |
QST Enterprises Inc. | Illinois | |
ESE Land Corporation | Illinois | |
California/Nevada Development L.L.C. | Delaware | |
Energy Risk Assurance Company | Vermont | |
Missouri Energy Risk Assurance Company LLC | Missouri | |
Illinois Power Company, d/b/a AmerenIP | Illinois | |
Illinois Power Securitization Limited Liability Company | Delaware | |
Illinois Power Special Purpose Trust | Delaware |
Union Electric Company, d/b/a AmerenUE | Missouri | |
Electric Energy, Inc. (40% interest)*** | Illinois | |
Midwest Electric Power Inc. | Illinois | |
Joppa and Eastern Railroad Company | Illinois | |
Met South, Inc. | Illinois | |
Massac Enterprises LLC | Illinois | |
Fuelco LLC | Delaware | |
Union Electric Development Corporation**** | Missouri |
* | Eliminated in February 2008 through merger into a newly formed Ameren Energy Resources Company, LLC (Delaware), which is a direct subsidiary of Ameren Corporation. | |
** | Eliminated in February 2008 through merger into Ameren Energy Resources Company (Illinois), which was subsequently eliminated in February 2008 through merger into newly formed Ameren Energy Resources Company, LLC. | |
*** | As of February 29, 2008, 80% interest in Electric Energy, Inc. will be held by newly formed Ameren Energy Resources Company, LLC. | |
**** | Effective January 1, 2008, Union Electric Company issued a dividend of Union Electric Development Corporation stock to Ameren Corporation, which caused Union Electric Development Corporation to become a direct subsidiary of Ameren Corporation. |
Subsidiaries not included on this list, considered in the aggregate as a single subsidiary, would not constitute significant subsidiary as of December 31, 2007.