SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM U5S ANNUAL REPORT For the Year Ended December 31, 2003 Filed pursuant to the Public Utility Holding Company Act of 1935 by ` AMEREN CORPORATION 1901 Chouteau Avenue, St. Louis, Missouri 63103 TABLE OF CONTENTS Page ITEM 1. SYSTEM COMPANIES AND INVESTMENTS THEREIN AS OF DECEMBER 31, 2003 1 ITEM 2. ACQUISITION OR SALES OF UTILITY ASSETS 11 ITEM 3 ISSUE, SALE, PLEDGE, GUARANTEE OR ASSUMPTION OF SYSTEM SECURITIES 11 ITEM 4. ACQUISITION, REDEMPTION OR RETIREMENT OF SYSTEM SECURITIES 12 ITEM 5. INVESTMENTS IN SECURITIES OF NON-SYSTEM COMPANIES 14 ITEM 6. OFFICERS AND DIRECTORS Part I. Name, principal business address and positions held as of December 31, 2003 17 Part II. Financial connections as of December 31, 2003 31 Part III. Compensation and other related information 32 ITEM 7. CONTRIBUTION AND PUBLIC RELATIONS 33 ITEM 8. SERVICE, SALES AND CONSTRUCTION CONTRACTS Part I. Intercompany sales and service 34 Part II. Contracts to purchase services or goods between any system company 35 and affiliate Part III. Employment of any person by an system company for the performance 35 on a continuing basis of management services ITEM 9. WHOLESALE GENERATORS AND FOREIGN UTIITY COMPANIES 36 ITEM 10. FINANCIAL STATEMENTS AND EXHIBITS Index to Financial Statements 36 Financial Statements Appendix B Exhibits 37 SIGNATURE 52 ITEM 1. SYSTEM COMPANIES AND INVESTMENTS THEREIN AS OF DECEMBER 31, 2003 Number of Common % of Issuer Owner's Shares Voting Book Book Name of Company Owned Power Value Value Business Type -------------- --------- ------ ------ ------- ------------- Ameren Corporation 4,398,161,560 4,398,161,560 Holding Company Ameren Capital Trust I* Financing Subsidiary Ameren Capital Trust II* Financing Subsidiary Union Electric Company 102,123,834 100.0 2,809,678,444 2,809,678,444 Electric & Gas Utility Electric Energy, Inc. 24,800 40.0 54,911,982 21,964,793 Electric Joppa & Eastern Railroad Co. 10,000 100.0 100,000 100,000 Rail Transport Midwest Electric Power, Inc. 1,000 100.0 100,000 100,000 Generating Company Met-South, Inc. 100 100.0 5,000 5,000 Wholesale Marketing Southern Materials Transfer, Inc. 10,000 100.0 0 0 Coal Terminal Massac Enterprises, LLC Purchasing Company Joppa Generating Station L.L.C.* Inactive Union Electric Development Corp. 18,500 100.0 (24,703,886) (24,703,886) Community Development & Energy-Related Investments Union Electric Capital Trust I* Financing Subsidiary ITEM 1. SYSTEM COMPANIES AND INVESTMENTS THEREIN AS OF DECEMBER 31, 2003 Central Illinois Public Service Company 100.0 481,699,547 481,699,547 Electric & Gas CIPS Energy, Inc.* 100 100.0 1,000 1,000 Inactive CIPSCO Investment Company 100 100.0 5,808,184 5,808,184 Leasing and Energy-Related Investments CIPSCO Securities Company 100 932,786 932,786 Investments CIPSCO Venture Company 100 381,110 381,110 Civic and Economic Development CIPSCO Leasing Company 100 5,430,155 5,430,155 Leveraged Leases CLC Aircraft Leasing Co. 100 Equipment Leasing CLC Leasing Co. A 100 Equipment Leasing CLC Leasing Co. C Inactive CIPSCO Energy Company 100 100.0 16,934,480 16,934,480 Energy-Related Investments CEC-ACLP Co. Investments Ameren Energy, Inc. 1,000 100.0 (7,229,902) (7,229,902) Power Marketing, Energy-Related 2 ITEM 1. SYSTEM COMPANIES AND INVESTMENTS THEREIN AS OF DECEMBER 31, 2003 Ameren Services Company 1,000 100.0 4,654,478 4,654,478 Services to Ameren and its affiliates Ameren Development Company 1,000 100.0 (30,884,716) (30,884,716) Holding Company Ameren ERC, Inc. 1,000 100.0 (7,033,117) (7,033,117) Energy-Related Missouri Central Railroad Company 100,000 100.0 6,199,975 6,199,975 Rail Transport Gateway Energy Systems, L.C. Energy-Related and affiliates Ameren Energy Communications, Inc. 1,000 100.0 (22,786,461) (22,786,461) Communications Related Ameren Energy Resources Company 1,000 100.0 330,671,211 330,671,211 Holding Company AmerenEnergy Medina Valley 100.0 28,385,504 28,385,504 Generating Company Cogen (No. 4), L.L.C.AmerenEnergy Medina Valley 100.0 221,924 221,924 Generating Company Operations, L.L.C. AmerenEnergy Medina Valley Cogen 100.0 27,733,283 27,733,283 Generating Company (No. 2), L.L.C. AmerenEnergy Medina Valley 100.0 27,737,658 27,737,658 Generating Company Cogen, L.L.C. Illinois Materials Supply Co. 1,000 100.0 (2,324,772) (2,324,772) Purchasing Company 3 ITEM 1. SYSTEM COMPANIES AND INVESTMENTS THEREIN AS OF DECEMBER 31, 2003 Ameren Energy Marketing Co. 1,000 100.0 (13,816,358) (13,816,358) Wholesale and Retail Marketing Ameren Energy Development Co. 1,000 100.0 317,626,168 317,626,168 Generating Facilities Ameren Energy Generating Co. 2,000 100.0 325,364,358 325,364,358 Generating Company Ameren Energy Fuels and Services 1,000 100.0 (2,574,243) (2,574,243) Fuel Purchasing Company Cowboy Railroad Development 70.97 Develop feasibility study Company, LLC For railroad AFS Development Company, LLC 100.0 Investments Electric Energy, Inc. 12,400 20.0 54,911,982 10,982,396 Electric Joppa & Eastern Railroad Co. 10,000 100,000 100,000 Rail Transport Met-South, Inc. 100 5,000 5,000 Wholesale marketing Midwest Electric Power, Inc. 100 100,000 100,000 Generating Company Southern Materials Transfer, Inc. 10,000 0 0 Coal Terminal Massac Enterprises, LLC Purchasing Company Joppa Generating Station L.L.C. Inactive 4 ITEM 1. SYSTEM COMPANIES AND INVESTMENTS THEREIN AS OF DECEMBER 31, 2003 CILCORP Inc. 1,000 100.0 477,881,173 477,881,173 Holding Company Central Illinois Light Company 100.0 323,035,867 323,035,867 Electric & Gas Utility CILCO Exploration and 100 100.0 295,615 295,615 Exploration of sources of Development Co. natural gas or supplemental gas AmerenEnergy Resources 1,000 100.0 305,346,563 305,346,563 Owns & operates electric Generating Company generation assets CILCO Energy Corporation 35,000 100.0 443,891 443,891 Research development CILCORP Investment Management Inc. 5,822 100.0 34,334,499 34,334,499 Investments CIM Air Leasing Inc. 100 100.0 4,172,921 4,172,921 Lease interest in commercial aircraft CIM Energy Investments Inc. 100 100.0 Investment in non- regulated energy production facilities CIM Leasing Inc. 100 100.0 7,872,716 7,872,716 Lease investments CILCORP Lease Management Inc. 61 100.0 20,179,044 20,179,044 Lease investments CLM Inc., IV 1,000 100.0 6,269,493 6,269,493 Lease investments CLM Inc., VII 1,000 100.0 1,207,462 1,207,462 Lease investments 5 ITEM 1. SYSTEM COMPANIES AND INVESTMENTS THEREIN AS OF DECEMBER 31, 2003 CLM Inc., VIII 1,000 100.0 1,206,951 1,206,951 Lease investments CLM XII Inc. 500 100.0 16,815 16,815 Lease investments CLM X, Inc. 500 100.0 17,484,625 17,484,625 Holding company CLM XI, Inc. 500 100.0 119,255 119,255 Lease investments CLM Inc., VI 1,000 100.0 17,315,370 17,315,370 Lease investments QST Enterprises Inc.* 43,250 100.0 6,483,255 6,483,255 Inactive QST Energy Inc*. 44,125 100.0 5,480,260 5,480,260 Inactive QST Energy Trading Inc.* 16,100 100.0 (1,346,414) (1,346,414) Inactive QST Inc.* 1,000 Inactive CILCORP Infraservices Inc. 1,000 100.0 824,230 824,320 Technical & maintenance services ESE Land Corporation 1,000 Real estate Savannah Resources Corp. 1,000 100.0 Real estate ESE Placentia Development 100 100.0 Real estate Corporation California/Nevada Development 15.0 Real estate L.L.C. CILCORP Ventures Inc. 7,352 100.0 1,248,025 1,248,025 Investment-Energy related products and services 6 ITEM 1. SYSTEM COMPANIES AND INVESTMENTS THEREIN AS OF DECEMBER 31, 2003 CILCORP Energy Services Inc. 67,820 100.0 1,211,119 1,211,119 Energy Agricultural Research & Development 800 80.0 37,599 30,079 Agricultural research Corp. Peoria Medical Research Corp. 1,000 14.0 Partnership engaged in medical research ---------------------- * Inactive Company 7 ITEM 1. SYSTEM COMPANIES AND INVESTMENTS THEREIN AS OF DECEMBER 31, 2003 FOOTNOTES 10 ITEM 2. ACQUISITIONS OR SALES OF UTILITY ASSETS Pursuant to the territorial agreement between Union Electric Company, d/b/a AmerenUE, and Callaway Electric Cooperative, and reliance on Rule 44, AmerenUE sold electric transmission and distribution facilities in the amount of $400,000 in 2003. ITEM 3. ISSUE, SALE, PLEDGE, GUARANTEE OR ASSUMPTION OF SYSTEM SECURITIES A. Union Electric Company - Debt Issuance (Rule 52 exemption) 1. Issuance of $184 million senior secured notes (secured by first mortgage bonds), 5.50% due March 15, 2034. Issued on March 10, 2003. 2. Issuance of $114 million senior secured notes (secured by first mortgage bonds), 4.75% due April 1, 2015. Issued on April 9, 2003. 3. Issuance of $200 million senior secured notes (secured by first mortgage bonds), 5.10% due August 1, 2018. Issued on July 28, 2003. 4. Issuance of $200 million senior secured notes (secured by first mortgage bonds), 4.65% due October 1, 2013. Issued on October 7, 2003. B. Ameren Corporation - Guarantees (Rule 45 (b) (6) exemption) 1. Ameren Corporation and its utility subsidiaries are self-insured for Worker's Compensation Insurance and the Ameren Corporation guarantees the payment of outstanding claims of subsidiaries (the "Reserve"). At 12/31/03 the Reserve amounted to $28,650,669. The highest amount outstanding at any time during the year cannot be readily determined. 11 ITEM 4. ACQUISITION, REDEMPTION OR RETIREMENT OF SYSTEM SECURITIES A. Union Electric Company - Debt Retirements (Rule 42 exemption) 1. On April 9, 2003, this system company redeemed, with proceeds from its issuance of $184 million 5.50% senior secured notes (secured by first mortgage bonds) due 2034, its $104 million principal amount 8.25% First Mortgage Bonds. 2. On May 9, 2003, this system company redeemed, with proceeds from its issuance of $114 million 4.75% senior secured notes (secured by first mortgage bonds) due 2015, its $85 million principal amount 8.00% First Mortgage Bonds. 3. On July 15, 2003, this system company retired, with proceeds from its issuance of $200 million 5.10% senior secured notes (secured by first mortgage bonds), upon maturity its $100 million principal amount 7.65% first mortgage bonds. 4. On September 2, 2003, this system company redeemed, with proceeds from its issuance of $200 million 5.10% senior secured notes (secured by first mortgage bonds) due 2018, its $75 million principal amount 7.15% First Mortgage Bonds. B. Central Illinois Public Service Company - Debt and Preferred Stock Retirements (Rule 42 exemption) 1. On March 15, 2003, this system company retired, with cash, upon maturity its $5 million principal amount 6.99% Series 97-1 First Mortgage Bonds, Medium-Term Notes. 2. On April 1, 2003, this system company retired, with cash, upon maturity its $40 million principal amount 6.375% Series Z First Mortgage Bonds. 3. On April 7, 2003, this system company redeemed, with cash, its $50 million principal amount 7.50% Series X First Mortgage Bonds. 4. On December 31, 2003, this system company redeemed, with cash, its $30 million principal Cumulative Preferred Stock, Auction Series A. C. Central Illinois Light Company - Debt and Preferred Stock Retirements (Rule 42 exemption) 1. On April 30, 2003, this system company redeemed, with cash, its $65 million principal amount 8.20% First Mortgage Bonds. 2. On April 30, 2003, this system company redeemed, with cash, its $10 million principal amount 7.80% Medium-Term Note A Series secured by First Mortgage Bonds. 3. On July 1, 2003, this system company retired, with cash, $1.1 million principal amount of its 5.85% cumulative preferred stock due 2008 pursuant to annual sinking fund requirements. 4. On August 18, 2003, this system company redeemed, with cash, both its $2.4 million principal amount Hallock Substation and $2.4 million principal amount Kickapoo Substation funded term loans. 12 D. AmerenEnergy Medina Valley Cogen LLC - Debt Retirements (Section 32 exemption) 1. On June 30, 2003, this system company redeemed, with cash, its $35.9 million principal amount funded term loan. E. Ameren Corporation - Debt Retirements 1. On December 12, 2003, this system company retired, with cash, upon maturity its $150 million principal amount floating rate notes. F. CILCORP Inc. - Debt Retirements (Rule 42 exemption) 1. On September 12, 2003, this system company repurchased, with cash, $27 million principal amount of its 8.70% senior notes due 2009. 2. On September 12, 2003, this system company repurchased, with cash, $12.9 million principal amount of its 9.375% senior notes due 2029. G. Electric Energy, Inc. - Debt Retirements (Section 32 exemption) 1. On December 15, 2003, this system company retired, with cash, $6.7 million principal amount of its 8.60% medium term notes due 2005 pursuant to annual sinking fund requirements 2. On December 15, 2003, this system company retired, with cash, $7.8 million principal amount of its 6.61% medium term notes due 2005 pursuant to annual sinking fund requirements 13 ITEM 5. INVESTMENTS IN SECURITIES OF NON-SYSTEM COMPANIES A. At 12/31/03 Ameren Corporation had $52,747,811 invested in the following temporary cash investments. These investments were in short-term money market funds. 1. Federated Investors funds: $25,661,014 2. Bank of America funds: $27,086,797 B. At 12/31/03 Union Electric Company had $13,593,000 of cash invested in Federated short-term money market funds. C. Aggregate amount of investments in persons operating in the retail service area of Ameren Corporation or of its subsidiaries. 1. Union Electric Company (a) Envirotech Investment Fund, L.L.C. Capital investments in energy- related businesses with Company contributions amounting to $1,068,759 as of 12/31/03. 2. Electric Energy, Inc (a) Massac Enterprises, LLC Capital contribution of $100,000 for purchasing operations within "enterprise zones". 3. Union Electric Development Corporationn (a) Civic Ventures Investment Fund, LP Investment fund to promote growth and development of small and minority business enterprises with Company contributions amounting to $68,667 as of 12/31/03. (b) Lewis and Clark Industrial Development Corporation Capital contribution in civic development of $5,000 as of 12/31/03. (c) Laclede's Landing Redevelopment Corporation Capital contribution in civic development of $10,000 as of 12/31/03. (d) Gateway National Bank Capital contribution in civic development of $60,000 as of 12/31/03. (e) NEMO Bank Community Development Corporation Capital contribution in civic development of $1,000 as of 12/31/03. (f) St. Louis Equity Funds - 1988, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 and 2003 - Real estate investment funds, with the Company's total contributions as of 12/31/03 of $6,389,594. Includes purchase of tax credits from Mercantile Community Development Corporation, Federal National Mortgage Association and U.S. Bancorp Community Development Corporation, along with a 14 subscription commitment as noted in Footnote 1, Page 14. No established market value. (g) Homestead Brookfield Housing Capital contribution for economic development amounting to $1,061 as of 12/31/03. 4. CIPSCO Investment Company (a) Illinois Equity Funds - 1992, 1994, 1996, 1998, and 2000 Limited Partnerships and St. Louis Equity Funds 1999 LLC, 2000 LLC, 2001 LLC, 2002 LLC, and 2003 LLC. Various ownership interests of not more than 20% in various limited partnerships. Total commitment to equity funds of $7,000,000. No established market value, book value is $3,333,350. Includes purchase of tax credits from Mercantile Community Development Corporation. 5. CIPSCO Venture Company Holdings: Total equity interest in the investments listed below is $381,110 (a) Mattoon Enterprise Park, LLC. A 20% equity interest, but not the managing member, in the above named limited liability company. No established market value. (b) MACC, LLC A 33.33% interest, but not the managing member, in the above named limited l iability company. No established market value. 6. CIPSCO Leasing Company Total current asset book value of investments listed below is $27,451,247. (a) A 17.5% undivided interest in a leveraged lease financing of a natural gas liquids plant held under the subsidiary name of CIPSCO Leasing Company. (b) A 100% interest in a leveraged lease financing of a commercial aircraft held under the subsidiary name CIPSCO Aircraft Leasing Company. (c) A 25% undivided interest in a leveraged lease financing of various oil and gas production equipment held under the subsidiary name CLC Leasing Company A. (d) CLC Leasing Company C established for future investment opportunities; no current investments. 7. CIPSCO Energy Company (a) Appomattox Cogeneration L.P. A 24.75% limited partnership interest in the above named Limited Partnership. This investment is held in CEC-ACLP Company, a subsidiary of CIPSCO Energy Company. Book value is $2,710,888. (a) Gateway Energy Systems, LLC and affiliates An 89.1% interest in the above named Limited Liability Company amounting to $1,103,067 as of 12/31/03. 15 9. Ameren Energy Communications, Inc. (a) Enporion Inc. Ameren was one of seven founding members of the above named e-commerce company with a $5,000,000 investment as of 12/31/03. 10. CILCORP Investment Management Inc. (a) Illinois Equity Funds - 1992, 1994, 1996 and 1998. Real estate investment funds with various ownership interests of less than 10% with the Company's total contribution as of 12/31/03 of $16,428,729. Includes interest in Midwest Tax Credit Fund I and Midwest Tax Credit Fund II and Bank One Fund III. 11. CIM Leasing Inc. (a) Sun America 51 - Real estate investment fund with interest of 5.7214% with the a total contribution as of 12/31/03 of $7,499,998. 16 ITEM 6. OFFICERS AND DIRECTORS - PART l. The positions of officers and director of all system companies as of December 31, 2003 were as follows: NAME AND ADDRESS POSITION AMEREN CORPORATION WARNER L. BAXTER ST. LOUIS, MO EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T WILLIAM E. CORNELIUS ST. LOUIS, MO D SUSAN S. ELLIOTT ST. LOUIS, MO D CLIFFORD L. GREENWALT SPRINGFIELD, IL D THOMAS A. HAYS ST. LOUIS, MO D RICHARD A. LIDDY ST. LOUIS, MO D GORDON R. LOHMAN CHICAGO, IL D RICHARD A. LUMPKIN MATTOON, IL D MARTIN J. LYONS ST. LOUIS, MO VP, C JOHN PETERS MACCARTHY ST. LOUIS, MO D PAUL L. MILLER, JR. ST. LOUIS, MO D CHARLES W. MUELLER ST. LOUIS, MO D, CM, CEO DOUGLAS R. OBERHELMAN ST. LOUIS, MO D GARY L. RAINWATER AmerenEnergy Medina Valley Cogen (No. 4), L.L.C. is on Illinois Limited Liability Company organized on June 26, 2000 and acquired by Ameren Corporation on February 4, 2003. AmerenEnergy Medina Valley Operations, L.L.C. is an Illinois Limited Liability Company organized on June 26, 2000 and acquired by Ameren Corporation on February 4, 2003. Ameren Energy Medina Valley Cogen (No. 2), L.L.C. is an Illinois Limited Liability Company organized on June 26, 2000 and acquired by Ameren Corporation on February 4, 2003. AmerenEnergy Medina Valley Cogen, L.L.C. is an Illinois Limited Liability Company organized on June 26, 2000 and acquired by Ameren Corporation on February 4, 2003. CILCORP Inc. is an Illinois corporation incorporated on January 10, 1985 and acquired by Ameren Corporation on January 31, 2003. Central Illinois Light Company is an Illinois corporation incorporated on November 15, 2001. CILCO Exploration and Development Co. is an Illinois corporation incorporated on June 27, 1973 and acquired by Ameren Corporation on January 31, 2003. AmerenEnergy Resources Generating Company is an Illinois corporation incorporated on November 15, 2001 as Central Illinois Generation, Inc., and acquired by Ameren Corporation on January 31, 2003. CILCO Energy Corporation is an Illinois corporation incorporated on November 12, 1975 and acquired by Ameren Corporation on January 31, 2003. CILCORP Investment Management Inc. is an Illinois corporation incorporated on November 13, 1998 and acquired by Ameren Corporation on January 31, 2003. 8 ITEM 1. SYSTEM COMPANIES AND INVESTMENTS THEREIN AS OF DECEMBER 31, 2003 CIM Air Leasing Inc. is a Delaware corporation incorporated on December 8, 1993 and acquired by Ameren Corporation on January 31, 2003. CIM Energy Investments Inc. is an Illinois corporation incorporated on August 23, 1993 and acquired by Ameren Corporation on January 31, 2003. CIM Leasing Inc. is a Delaware corporation incorporated on August 23, 1993 and acquired by Ameren Corporation on January 31, 2003. CILCORP Lease Management Inc. is a Delaware corporation incorporated on April 12, 1984 and acquired by Ameren Corporation on January 31, 2003. CIM Inc., IV is a Delaware corporation incorporated on December 18, 1986 and acquired by Ameren Corporation on January 31, 2003. CLM Inc., VII is a Delaware corporation incorporated on December 22, 1986 and acquired by Ameren Corporation on January 31, 2003. CLM Inc., VIII is a Delaware corporation incorporated on December 22, 1986 and acquired by Ameren Corporation on January 31, 2003. CLM XII Inc. is a Delaware corporation incorporated on November 21, 2003. CLM X Inc. is a Delaware corporation incorporated on September 22, 2000 and acquired by Ameren Corporation on January 31, 2003. CLM XI Inc. is a Delaware corporation incorporated on September 22, 2000 and acquired by Ameren Corporation January 31, 2003. CLM Inc, VI is a Delaware corporation incorporated on December 18, 1986 and acquired by Ameren Corporation January 31, 2003. QST Enterprises Inc. is an Illinois Corporation incorporated on November 21, 1995 and acquired by Ameren Corporation on January 31, 2003. QST Energy Inc. is an Illinois corporation incorporated on November 21, 1995 and acquired by Ameren Corporation on January 31, 2003. QST Energy Trading Inc. is an Illinois corporation incorporated on November 21, 1995 and acquired by Ameren Corporation on January 31, 2003. 9 ITEM 1. SYSTEM COMPANIES AND INVESTMENTS THEREIN AS OF DECEMBER 31, 2003 QST Inc. is an Illinois corporation incorporated on November 21, 1995 and acquired by Ameren Corporation on January 31, 2003. CILCORP Infraservices Inc. is an Illinois corporation incorporated on November 13, 1998 and acquired by Ameren Corporation on January 31, 2003. ESE Land Corporation is an Illinois corporation incorporated on October 24, 1995 and acquired by Ameren Corporation on January 31, 2003. Savannah Resources Corp. is a California corporation incorporated on September 26, 1994 and acquired by Ameren Corporation on January 31, 2003. ESE Placentia Development Corporation is an Illinois corporation incorporated on February 16, 1996 and acquired by Ameren Corporation on January 31, 2003. California/Nevada Development, L.L.C. is a Delaware limited liability company organized on November 20, 1997 and acquired by Ameren Corporation on January 31, 2003 CILCORP Ventures Inc. is an Illinois corporation incorporated on October 8, 1985 and acquired by Ameren Corporation on January 31, 2003. CILCORP Energy Service Inc. is an Illinois corporation incorporated on April 11, 1994 and acquired by Ameren Corporation on January 31, 2003. Agricultural Research and Development Corporation is an Illinois corporation incorporated on May 26, 1987, and acquired by Ameren Corporation on January 31, 2003. Peoria Medical Research Corporation is an Illinois corporation incorporated on February 28, 1990 and Acquired by Ameren Corporation on January 31, 2003. ST. LOUIS, MO P, COO, D HARVEY SALIGMAN ST. LOUIS, MO D STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S UNION ELECTRIC COMPANY RONALD D. AFFOLTER ST. LOUIS, MO VP WARNER L. BAXTER ST. LOUIS, MO D, EVP. CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T DANIEL F. COLE ST. LOUIS, MO SVP RICHARD A. LIDDY ST. LOUIS, MO D RICHARD A. LUMPKIN ST. LOUIS, MO D PAUL L. MILLER, JR ST. LOUIS, MO D MARTIN J. LYONS ST. LOUIS, MO VP, C CHARLES W. MUELLER ST. LOUIS, MO D, CM, CEO CHARLES D. NASLUND ST. LOUIS, MO VP GREGORY L. NELSON ST. LOUIS, MO VP DOUGLAS R. OBERHELMAN ST. LOUIS, MO D GARY L. RAINWATER ST. LOUIS, MO D, P, COO 17 GARRY L. RANDOLPH ST. LOUIS, MO D, SVP HARVEY SALIGMAN ST. LOUIS, MO D STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO D, SVP DAVID A. WHITELEY ST. LOUIS, MO D, SVP RONALD C. ZDELLAR ST. LOUIS, MO VP ELECTRIC ENERGY, INC. RICK A. BOWEN ST. LOUIS, MO D DANIEL F. COLE ST. LOUIS, MO D RICHARD W. EIMER, JR. DECATUR, IL D JAMES M. HELM JOPPA, IL S, T R. ALAN KELLEY ST. LOUIS, MO D, CM CHARLES D. NASLUND ST. LOUIS, MO D ROBERT L. POWERS JOPPA, IL P GARY L. RAINWATER ST. LOUIS, MO D WILLIAM SHEPPARD JOPPA, IL VP A. ROGER SMITH LOUISVILLE, KY D PAUL W. THOMPSON LOUISVILLE, KY D DAVID A. WHITELEY ST. LOUIS, MO D JOPPA & EASTERN RAILROAD COMPANY JEFFREY S. BERKBIGLER CARBONDALE, IL S JAMES M. HELM JOPPA, IL T JOHN S. RENDLEMAN CARBONDALE, IL P, D MET-SOUTH, INC. JEFFREY S. BERKBIGLER CARBONDALE, IL VP CHERYL L. ERDMAN CARBONDALE, IL S JAMES M. HELM JOPPA, IL T JOHN S. RENDLEMAN CARBONDALE, IL P, D MIDWEST ELECTRIC POWER, INC. JEFFREY S. BERKBIGLER CARBONDALE, IL S JAMES M. HELM JOPPA, IL T JOHN S. RENDLEMAN CARBONDALE, IL P, D SOUTHERN MATERIALS TRANSFER, INC. JEFFREY S. BERKBIGLER CARBONDALE, IL S, D JAMES M. HELM JOPPA, IL T JOHN S. RENDLEMAN CARBONDALE, IL P, D MASSAC ENTERPRISES, LLC JOHN R. DALY JOPPA, IL MB JEFFREY S. BERKBIGLER CARBONDALE, IL MB JAMES M. HELM JOPPA, IL MB JOHN S. RENDLEMAN CARBONDALE, IL MB 18 UNION ELECTRIC DEVELOPMENT CORPORATION WARNER L. BAXTER ST. LOUIS, MO D, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO D, VP, T DANIEL F. COLE ST. LOUIS, MO D MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP GARY L. RAINWATER ST. LOUIS, MO D, P STEVEN R. SULLIVAN ST. LOUIS, MO D, SVP, GC, S ST. LOUIS EQUITY FUND 1988, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 JERRE E. BIRDSONG ST. LOUIS, MO CM CENTRAL ILLINOIS PUBLIC SERVICE COMPANY WARNER L. BAXTER ST. LOUIS, MO D, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T DANIEL F. COLE ST. LOUIS, MO D, SVP JIMMY L. DAVIS ST. LOUIS, MO VP RICHARD A. LIDDY ST. LOUIS, MO D RICHARD A. LUMPKIN ST. LOUIS, MO D MARTIN J. LYONS ST. LOUIS, MO VP, C PAUL L. MILLER, JR. ST. LOUIS, MO D CHARLES W. MUELLER (1) ST. LOUIS, MO D CRAIG D. NELSON ST. LOUIS, MO VP GREGORY L. DAVIS ST. LOUIS, MO VP DOUGLAS R. OBERHELMAN ST. LOUIS, MO D GARY L. RAINWATER ST. LOUIS, MO D, P, CEO GARRY L. RANDOLPH ST. LOUIS, MO SVP HARVEY SALIGMAN ST. LOUIS, MO D STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO D, SVP DAVID A. WHITELEY ST. LOUIS, MO D, SVP CIPS ENERGY, INC. GARY L. RAINWATER ST. LOUIS, MO D, P GREGORY L. NELSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO D, VP, S, T CIPSCO INVESTMENT COMPANY WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, CH, P MARTIN J. LYONS ST. LOUIS, MO C, D GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO D, VP, T STEVEN R. SULLIVAN ST. LOUIS, MO S 19 CIPSCO SECURITIES COMPANY WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P, CEO MARTIN J. LYONS ST. LOUIS, MO D, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO D, VP, T STEVEN R. SULLIVAN ST. LOUIS, MO S CIPSCO VENTURE COMPANY WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P, CEO MARTIN J. LYONS ST. LOUIS, MO D, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO D, VP, T STEVEN R. SULLIVAN ST. LOUIS, MO S MATTOON ENTERPRISES PARK LLC LEE R. NICKLOY ST. LOUIS, MO D MACC, LLC LEE R. NICKLOY ST. LOUIS, MO D ILLINOIS EQUITY FUND 1992, 1994, 1996, 1998, 2000, 2002, 2003 LEE R. NICKLOY ST. LOUIS, MO D CIPSCO LEASING COMPANY WARNER L. BAXTER ST. LOUIS, MO JERRE E. BIRDSONG ST. LOUIS, MO D, P, CEO MARTIN J. LYONS ST. LOUIS, MO D, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO D, VP, T STEVEN R. SULLIVAN ST. LOUIS, MO S CLC AIRCRAFT LEASING CO. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P, CEO MARTIN J. LYONS ST. LOUIS, MO D, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO D, VP, T STEVEN R. SULLIVAN ST. LOUIS, MO S CLC LEASING CO. A WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P, CEO MARTIN J. LYONS ST. LOUIS, MO D, C 20 GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO D, VP, T STEVEN R. SULLIVAN ST. LOUIS, MO S CIPSCO ENERGY COMPANY WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P, CEO MARTIN J. LYONS ST. LOUIS, MO D, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO D, VP, T STEVEN R. SULLIVAN ST. LOUIS, MO S CEC-ACLP CO. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P, CEO MARTIN J. LYONS ST. LOUIS, MO D, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO D, VP, T STEVEN R. SULLIVAN ST. LOUIS, MO S AMEREN ENERGY, INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO VP, T MARK C. BIRK ST. LOUIS, MO VP DANIEL F. COLE ST. LOUIS, MO D CHARLES W. MUELLER ST. LOUIS, MO D GREGORY L. NELSON ST. LOUIS, MO VP GARY L. RAINWATER ST. LOUIS, MO D STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO P, D AMEREN SERVICES CO. WARNER L. BAXTER ST. LOUIS, MO D, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T MARK C. BIRK ST. LOUIS, MO VP CHARLES A. BREMER ST. LOUIS, MO VP DANIEL F. COLE ST. LOUIS, MO D, SVP JIMMY L. DAVIS ST. LOUIS, MO VP MARTIN J. LYONS ST. LOUIS, MO VP, C RICHARD J. MARK ST. LOUIS, MO VP DONNA K. MARTIN ST. LOUIS, MO VP MICHAEL L. MENNE ST. LOUIS, MO VP CHARLES W. MUELLER ST. LOUIS, MO D, CM, CEO MICHAEL G. MUELLER ST. LOUIS, MO VP CRAIG D. NELSON ST. LOUIS, MO VP GREGORY L. NELSON ST. LOUIS, MO VP GARY L. RAINWATER ST. LOUIS, MO D, P, COO STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S DAVID A. WHITELEY ST. LOUIS, MO SVP 21 SAMUEL E. WILLIS ST. LOUIS, MO VP THOMAS R. VOSS ST. LOUIS, MO D, SVP RONALD C. ZDELLAR ST. LOUIS, MO VP AMEREN DEVELOPMENT COMPANY WARNER L. BAXTER ST. LOUIS, MO D, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T DANIEL F. COLE ST. LOUIS, MO D MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP GARY L. RAINWATER ST. LOUIS, MO D, P STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S DAVID A. WHITELEY ST. LOUIS, MO D AMEREN ERC, INC. WARNER L. BAXTER ST. LOUIS, MO D, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T DANIEL F. COLE ST. LOUIS, MO D MARTIN J. LYONS ST. LOUIS, MO VP, C MICHAEL G. MUELLER ST. LOUIS, MO VP GARY L. RAINWATER ST. LOUIS, MO D STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO P DAVID A. WHITELEY ST. LOUIS, MO D GATEWAY ENERGY SYSTEMS, L.C. AND AFFILIATES WARNER L. BAXTER ST. LOUIS, MO M JERRE E. BIRDSONG ST. LOUIS, MO M PAUL MCKEE ST. LOUIS, MO M AMEREN ENERGY COMMUNICATIONS, INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO VP, T DANIEL F. COLE ST. LOUIS, MO D MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP GARY L. RAINWATER ST. LOUIS, MO D STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO SVP DAVID A. WHITELEY ST. LOUIS, MO P AMEREN ENERGY RESOURCES COMPANY WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO VP, T DANIEL F. COLE ST. LOUIS, MO D R. ALAN KELLEY ST. LOUIS, MO VP MICHAEL L. MOEHN ST. LOUIS, MO VP CHARLES W. MUELLER ST. LOUIS, MO D STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS A. VOSS ST. LOUIS, MO P, D 22 MISSOURI CENTRAL RAILROAD COMPANY JERRE E. BIRDSONG ST. LOUIS, MO D DANIEL F. COLE ST. LOUIS, MO D R. ALAN KELLEY ST. LOUIS, MO D MICHAEL G. MUELLER ST. LOUIS, MO D ROBERT K. NEFF ST. LOUIS, MO P GREGORY L. NELSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO D, SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO D ILLINOIS MATERIALS SUPPLY CO. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO VP, T DANIEL F. COLE ST. LOUIS, MO D R. ALAN KELLEY ST. LOUIS, MO VP GREGORY L. NELSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S DAVID A. WHITELEY ST. LOUIS, MO SVP THOMAS R. VOSS ST. LOUIS, MO D, P AMEREN ENERGY MARKETING COMPANY WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO VP, T DANIEL F. COLE ST. LOUIS, MO D GREGORY L. NELSON ST. LOUIS, MO VP ANDREW M. SERRI ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO D, P AMEREN ENERGY DEVELOPMENT COMPANY JERRE E. BIRDSONG ST. LOUIS, MO VP, T R. ALAN KELLEY ST. LOUIS, MO D, VP GREGORY L. NELSON ST. LOUIS, MO VP ROBERT L. POWERS ST. LOUIS, MO VP JERRY L. SIMPSON SPRINGFIELD, IL VP STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO D, P AMEREN ENERGY GENERATING COMPANY JERRE E. BIRDSONG ST. LOUIS, MO VP, T WARNER L. BAXTER ST. LOUIS, MO D, EVP, CFO DANIEL F. COLE ST. LOUIS, MO D R. ALAN KELLEY ST. LOUIS, MO SVP RICHARD A. LIDDY ST. LOUIS, MO D RICHARD A. LUMPKIN ST. LOUIS, MO D MARTIN J. LYONS ST. LOUIS, MO VP, C PAUL L. MILLER, JR. ST. LOUIS, MO D 23 CHARLES W. MUELLER ST. LOUIS, MO D GREGORY L. NELSON ST. LOUIS, MO VP DOUGLAS R. OBERHELMAN ST. LOUIS, MO D ROBERT L. POWERS ST. LOUIS, MO VP GARY L. RAINWATER ST. LOUIS, MO D GARRY L. RANDOLPH ST. LOUIS, MO SVP HARVEY SALIGMAN ST. LOUIS, MO D JERRY L. SIMPSON SPRINGFIELD, IL VP STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO P, D DAVID A. WHITELEY ST. LOUIS, MO D, SVP AMEREN ENERGY FUELS AND SERVICES COMPANY WARNER L. BAXTER ST. LOUIS, MO D, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T DANIEL F. COLE ST. LOUIS, MO D MARTIN J. LYONS ST. LOUIS, MO VP, C MICHAEL G. MUELLER ST. LOUIS, MO VP GREGORY L. NELSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO P, D AFS DEVELOPMENT COMPANY, LLC JERRE E. BIRDSONG ST. LOUIS, MO T DANIEL F. COLE ST. LOUIS, MO P MICHAEL G. MUELLER ST. LOUIS, MO VP GREGORY L. NELSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S COWBOY RAILROAD DEVELOPMENT COMPANY, LLC DANIEL F. COLE ST. LOUIS, MO M MICHAEL G. MUELLER ST. LOUIS, MO M ROBERT K. NEFF ST. LOUIS, MO M ANDREW SOUTHWELL ST. LOUIS, MO M STEVEN R. SULLIVAN ST. LOUIS, MO M CILCORP INC. WARNER L. BAXTER ST. LOUIS, MO D, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T DANIEL F. COLE ST. LOUIS, MO D, SVP RICHARD A. LIDDY ST. LOUIS, MO D RICHARD A. LUMPKIN ST. LOUIS, MO D MARTIN J. LYONS ST. LOUIS, MO VP, C PAUL L. MILLER, JR. ST. LOUIS, MO D CHARLES W. MUELLER ST. LOUIS, MO D GREGORY L. NELSON ST. LOUIS, MO VP DOUGLAS R. OBERHELMAN ST. LOUIS, MO D GARY L. RAINWATER ST. LOUIS, MO D, P, CEO GARRY L. RANDOLPH ST. LOUIS, MO SVP 24 HARVEY SALIGMAN ST. LOUIS, MO D STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO D, SVP DAVID A. WHITELEY ST. LOUIS, MO D, SVP AMERENENERGY MEDINA VALLEY COGEN, (NO. 4) L.L.C. WARNER L. BAXTER ST. LOUIS, MO M, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T R. ALAN KELLEY ST. LOUIS, MO M, SVP MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP ROBERT L. POWERS ST. LOUIS, MO VP JERRE L. SIMPSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO M, SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO M, P AMERENENERGY MEDINA VALLEY COGEN, (NO. 2) L.L.C. WARNER L. BAXTER ST. LOUIS, MO M, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T R. ALAN KELLEY ST. LOUIS, MO M, SVP MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP ROBERT L. POWERS ST. LOUIS, MO VP JERRE L. SIMPSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO M, SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO M, P AMERENENERGY MEDINA VALLEY COGEN, L.L.C. WARNER L. BAXTER ST. LOUIS, MO M, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T R. ALAN KELLEY ST. LOUIS, MO M, SVP MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP ROBERT L. POWERS ST. LOUIS, MO VP JERRE L. SIMPSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO M, SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO M, P AMERENENERGY MEDINA VALLEY OPERATIONS, L.L.C. WARNER L. BAXTER ST. LOUIS, MO M, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T R. ALAN KELLEY ST. LOUIS, MO M, SVP MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP ROBERT L. POWERS ST. LOUIS, MO VP JERRE L. SIMPSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO M, SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO M, P 25 CENTRAL ILLINOIS LIGHT COMPANY WARNER L. BAXTER ST. LOUIS, MO D, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T SCOTT A. CISEL PEORIA, IL D, VP, COO DANIEL F. COLE ST. LOUIS, MO D, SVP R. ALAN KELLEY ST. LOUIS, MO SVP RICHARD A. LIDDY ST. LOUIS, MO D RICHARD A. LUMPKIN ST. LOUIS, MO D MARTIN J. LYONS ST. LOUIS, MO VP, C PAUL L. MILLER, JR. ST. LOUIS, MO D CHARLES W. MUELLER ST. LOUIS, MO D GREGORY L. NELSON ST. LOUIS, MO VP DOUGLAS R. OBERHELMAN ST. LOUIS, MO D GARY L. RAINWATER ST. LOUIS, MO D, P, CEO GARRY L. RANDOLPH ST. LOUIS, MO SVP HARVEY SALIGMAN ST. LOUIS, MO D STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO D, SVP DAVID A. WHITELEY ST. LOUIS, MO SVP CILCORP INVESTMENT MANAGEMENT INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO D, VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S QST ENTERPRISES INC. JERRE E. BIRDSONG ST. LOUIS, MO T SCOTT A. CISEL PEORIA, IL VP MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO GC, S THOMAS R. VOSS ST. LOUIS, MO D, P CILCORP VENTURES INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO VP, T SCOTT A. CISEL PEORIA, IL D, VP DANIEL F. COLE ST. LOUIS, MO D, P GREGORY L. NELSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO D CILCO EXPLORATION AND DEVELOPMENT CO. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO P MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP 26 LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO GC, S AMERENENERGY RESOURCES GENERATING COMPANY WARNER L. BAXTER ST. LOUIS, MO D, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T DANIEL F. COLE ST. LOUIS, MO D R. ALAN KELLEY ST. LOUIS, MO SVP MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP ROBERT L. POWERS ST. LOUIS, MO VP GARRY L. RANDOLPH ST. LOUIS, MO SVP JERRE L. SIMPSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO D, P DAVID A. WHITELEY ST. LOUIS, MO SVP CILCO ENERGY CORPORATION WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO P MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S CIM AIR LEASING INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S CIM ENERGY INVESTMENTS INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S CIM LEASING INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S 27 CILCORP LEASE MANAGEMENT INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S CLM INC., IV WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC & S CLM INC. - VII WARNER L. BAXTER ST. LOUIS, MO D, V-CHM JERRE E. BIRDSONG ST. LOUIS, MO D, P, CHM MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S CLM INC. - VIII WARNER L. BAXTER ST. LOUIS, MO D, V-CHM JERRE E. BIRDSONG ST. LOUIS, MO D, P, CHM MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S CLM X INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S CLM XII, INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S KENNETH E. UVA (INDEPENDENT) D 28 CLM INC.- VI WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S CLM XI, INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO D, VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO VP, T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S QST ENERGY INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO P MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO T STEVEN R. SULLIVAN ST. LOUIS, MO GC, S CILCORP INFRASERVICES INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO T SCOTT A. CISEL PEORIA, IL VP DANIEL F. COLE ST. LOUIS, MO D MARTIN J. LYONS ST. LOUIS, MO VP & C GREGORY L. NELSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO GC & S THOMAS R. VOSS ST. LOUIS, MO D, P QST INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO P MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO T STEVEN R. SULLIVAN ST. LOUIS, MO GC & S ESE LAND CORPORATION WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO T STEVEN R. SULLIVAN ST. LOUIS, MO GC & S 29 CALIFORNIA/NEVADA DEVELOPMENT L.L.C. WARNER L. BAXTER ST. LOUIS, MO M QST ENERGY TRADING INC. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO P MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO T STEVEN R. SULLIVAN ST. LOUIS, MO GC & S SAVANNAH RESOURCES CORP. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO T STEVEN R. SULLIVAN ST. LOUIS, MO GC & S ESE PLACENTIA DEVELOPMENT CORPORATION WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P MARTIN J. LYONS ST. LOUIS, MO C LEE R. NICKLOY ST. LOUIS, MO T GREGORY L. NELSON ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO GC & S CILCORP ENERGY SERVICES INC. WARNER L. BAXTER ST. LOUIS, MO D, EVP, CFO JERRE E. BIRDSONG ST. LOUIS, MO VP, T MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP ANDREW M. SERRI ST. LOUIS, MO VP STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S THOMAS R. VOSS ST. LOUIS, MO D, P AGRICULTURAL RESEARCH & DEVELOPMENT CORP. WARNER L. BAXTER ST. LOUIS, MO D JERRE E. BIRDSONG ST. LOUIS, MO D, P SCOTT A. CISEL ST. LOUIS, MO VP MARTIN J. LYONS ST. LOUIS, MO VP, C GREGORY L. NELSON ST. LOUIS, MO VP LEE R. NICKLOY ST. LOUIS, MO T STEVEN R. SULLIVAN ST. LOUIS, MO SVP, GC, S 30 NOTE: Positions are indicated above by the following symbols: C -- Controller CEO -- Chief Executive Officer CFO -- Chief Financial Officer CM -- Chairman COO -- Chief Operating Officer D -- Director EVP -- Executive Vice President GC -- General Counsel M -- Manager MB -- Member P -- President PEO -- Principal Executive Officer S -- Secretary SVP -- Senior Vice President T -- Treasurer VP -- Vice President ITEM 6. OFFICERS AND DIRECTORS - PART ll. Financial Connections - The following is a list, as of December 31, 2003, of all officers and directors of each system company who have financial connections within the provisions of Section 17(c) of the Public Utility Holding Company Act of 1935. Position Held in Applicable Name of Officer Financial Exemption or Director Name and Location of Financial Institution Institution Rules (1) (2) (3) (4) --------------- ------------------------------------------ ----------- ---------- AMEREN CORPORATION Richard A. Lumpkin First Mid-Illinois Bancshares Inc. Director Rule 70(a) First Mid-Illinois Bank & Trust NA Director Rule 70(a) Douglas R. Oberhelman South Side Bank - Peoria, Illinois Director Rule 70(a) 31 ITEM 6. OFFICERS AND DIRECTORS - PART lll. (a) and (b) Directors' and Executive Officers' Compensation and Security Interests. Information concerning directors, the chief executive officer and the five other most highly compensated executive officers (as defined by regulations of the Securities and Exchange Commission) of Ameren Corporation System companies is incorporated by reference to "Item (1): Election of Directors", "Security Ownership of Management" and "Executive Compensation" in Ameren Corporation's 2004 definitive proxy statement, a copy of which is on file with the SEC in File No. File No. 001-14756. (c) Directors' and Executive Officers' Contracts and Transactions with System Companies. None. (d) Indebtedness of Directors or Executive Officers to System Companies. None. (e) Directors' and Executive Officers' Participation in Bonus and Profit-Sharing Arrangements and Other Benefits. Information concerning directors, the chief executive officer and the five other most highly compensated executive officers (as defined by regulations of the Securities and Exchange Commission) of Ameren Corporation System companies is incorporated by reference to "Item (1): Election of Directors", "Executive Compensation" and "Arrangements With Named Executive Officers" in Ameren Corporation's 2004 definitive proxy statement, a copy of which is on file with the SEC in File No. File No. 001-14756. (f) Directors' and Executive Officers' rights to Indemnity. The state laws under which each of the System companies is incorporated provide broadly for indemnification of directors and officers against claims and liabilities against them in their capacities as such. Each of the System companies' charters or by-laws also provides for indemnification of directors and officers. In addition, directors and executive officers of the System companies are insured under directors' and officers' liability policies issued by Great American Insurance Company, Associated Electric & Gas Insurance Services Limited. Twin City Fire Insurance Company, Allied World Assurance Company Limited and Arch Insurance Limited. The policies are for the period March 1, 2004 to February 28, 2005. Ameren Corporation has entered into a standard form of indemnity agreement with each of its directors and officers. 32 ITEM 7. CONTRIBUTIONS AND PUBLIC RELATIONS 1. Political --------- Central Illinois Public Service Company (d/b/a AmerenCIPS), by authorization of its Board of Directors, matched employee and retiree contributions made to the AmerenCIPS Political Action Committee (PAC) in the amount of $40,000. The AmerenCIPS PAC is a political action committee established in accordance with the law of the state of Illinois for the sole purpose of supporting state and local political candidates in the state of Illinois. The $40,000 matching contribution to the AmerenCIPS PAC was made and reported in accordance with Illinois law. Union Electric Company (d/b/a AmerenUE), by authorization of its Board of Directors, matched employee contributions made to the AmerenUE Political Action Committee (PAC) in the amount of $38,664.58. The AmerenUE PAC is a continuing committee established in accordance with the laws of the state of Missouri for the sole purpose of supporting state and local political candidates in the state of Missouri. The $38,664.58 matching contribution to the AmerenUE PAC was made and reported in accordance with Missouri law. 2. Citizens Groups --------------- None for Illinois None for Missouri Public Relations Counsel ------------------------ No companies were retained in 2003 on general public relations matters. 33 ITEM 8. SERVICE, SALES AND CONSTRUCTION CONTRACTS Part I. Contracts for services, including engineering or construction services, or goods supplied or sold between System companies are as follows: Calendar Year 2003 Compensation Nature of Transactions Company Performing Service Company Receiving Service (4) (1) (2) (3) (in thousands) Equipment Sales AmerenUE AmerenEnergy Fuels & Services $119 Equipment Sales AmerenCIPS AmerenCILCO 22 Equipment Sales AmerenEnergy Resources Generating AmerenCILCO 4 Company Equipment Sales AmerenCILCO AmerenEnergy Resources Generating 34 Company Materials and Supplies Illinois Materials Supply Company AmerenUE 11,106 Materials and Supplies Illinois Materials Supply Company AmerenCILCO 233 Misc. Services AmerenCIPS AmerenEnergy Marketing Company 1,066 Misc. Services AmerenCIPS Ameren Corporation 287 Misc. Services AmerenCIPS CIPSCO Investment 1 Misc. Services AmerenCIPS AmerenCILCO 190 Misc. Services AmerenCIPS AmerenUE 1,086 Misc. Services AmerenCIPS AmerenERC 7 Misc. Services AmerenUE Ameren Corporation 25 Misc. Services AmerenUE AmerenEnergy Co. 179 Misc. Services AmerenUE AmerenCIPS 1,769 Misc. Services AmerenUE AmerenERC 9 Misc. Services AmerenUE AmerenEnergy Marketing Company 907 Misc. Services AmerenUE AmerenEnergy Resources Generating 4 Company Misc. Services AmerenUE AmerenDevelopment Co. (3) Misc. Services AmerenUE AmerenEnergy Fuels & Services 650 Misc. Services AmerenUE Illinois Materials Supply Company 1 Misc. Services AmerenUE AmerenEnergy Communications, Inc. 14 Misc. Services AmerenUE AmerenCILCO 168 Misc. Services AmerenEnergy Fuels & Services AmerenCIPS 1,154 Misc. Services AmerenEnergy Fuels & Services Ameren Corporation 828 Misc. Services AmerenEnergy Fuels & Services AmerenUE 5,581 Misc. Services AmerenEnergy Fuels & Services AmerenEnergy Resources Generating 205 Company Misc. Services AmerenEnergy Fuels & Services AmerenCILCO 486 Misc. Services AmerenEnergy AmerenEnergy Marketing Company 751 Misc. Services Misc. Services AmerenEnergy Communications, Inc. AmerenEnergy Marketing Company 8 Misc. Services AmerenEnergy Communications, Inc. AmerenCIPS 24 Misc. Services AmerenEnergy Communications, Inc. AmerenUE 132 Misc. Services AmerenEnergy Marketing Company Ameren Corporation 45 Misc. Services CIPSCO Investment AmerenCIPS 134 Misc. Services CIPSCO Investment AmerenEnergy Fuels & Services 3 Misc. Services CIPSCO Investment AmerenEnergy Marketing Company 3 Misc. Services Ameren Corporation AmerenCILCO 2,202 Misc. Services AmerenCILCO Ameren Corporation 1 34 Misc. Services AmerenCILCO CILCORP 1,454 Misc. Services AmerenCILCO CILCORP Investment Management, Inc. 99 Misc. Services AmerenCILCO CILCORP Infra-Services, Inc. 3 Misc. Services AmerenCILCO AmerenERC 55 Misc. Services AmerenCILCO AmerenEnergy Marketing Company 21 Misc. Services AmerenCILCO AmerenUE 193 Misc. Services AmerenCILCO AmerenCIPS 23 Misc. Services AmerenCILCO CILCORP Energy Services, Inc. 181 Misc. Services AmerenCILCO AmerenEnergy Resources Generating 343 Company Misc. Services AmerenEnergy Resources Generating AmerenUE 3 Company Part II. None. Part III. None. 35 ITEM 9. WHOLESALE GENERATORS AND FOREIGN UTILITY COMPANIES Filed confidentially as Appendix A and on Form SE. ITEM 10. FINANCIAL STATEMENTS AND EXHIBITS FINANCIAL STATEMENTS Filed confidentially as Appendix B on Form SE. NOTES TO FINANCIAL STATEMENTS Ameren Corporation Reference is made to "Notes to Consolidated Financial Statements" contained on pages 110 through 175 in the Ameren combined 2003 Annual Report to Shareholders, which information is incorporated by reference. Union Electric Company (AmerenUE) Reference is made to "Notes to Consolidated Financial Statements" contained on pages 110 through 175 in the Ameren combined 2003 Annual Report to Shareholders, which information is incorporated by reference. Central Illinois Public Service Company (AmerenCIPS) Reference is made to "Notes to Consolidated Financial Statements" contained on pages 110 through 175 in the Ameren combined 2003 Annual Report to Shareholders, which information is incorporated by reference. Ameren Energy Generating Company (Generating Company) Reference is made to "Notes to Consolidated Financial Statements" contained on pages 110 through 175 in the Ameren combined 2003 Annual Report to Shareholders, which information is incorporated by reference. CILCORP Inc. Reference is made to "Notes to Consolidated Financial Statements" contained on pages 110 through 175 in the Ameren combined 2003 Annual Report to Shareholders, which information is incorporated by reference. Central Illinois Light Company (AmerenCILCO) Reference is made to "Notes to Consolidated Financial Statements" contained on pages 110 through 175 in the Ameren combined 2003 Annual Report to Shareholders, which information is incorporated by reference. Note: The "Other" column on the consolidating financial statements is comprised of companies with immaterial activity, as well as eliminations. 36 EXHIBITS The following exhibits are incorporated by reference to the indicated SEC file number, unless a single asterisk appears next to the exhibit reference. A single asterisk indicates exhibits which are filed herewith. EXHIBIT NUMBER DESCRIPTION A. ANNUAL REPORTS FILED UNDER THE SECURITIES AND EXCHANGE ACT OF 1934 A.1 2003 Annual Report on Form 10-K for Ameren Corporation. (File No. 001-14756) A.2 2003 Annual Report on Form 10-K for Central Illinois Public Service Company. (File No. 001-03672) A.3 2003 Annual Report on Form 10-K for Union Electric Company. (File No. 001-02967) A.4 2003 Annual Report on Form 10-K for Ameren Energy Generating Company. (File No. 333-56594) A.5 2003 Annual Report on Form 10-K for CILCORP Inc. (File No. 002-95569) A.6 2003 Annual Report Form 10-K for Central Illinois Light Company (File No. 001-02732) A.7 2004 Proxy Statement of Ameren Corporation. (File No. 001-14756) A.8 2004 Proxy Statement of Central Illinois Public Service Company. (File No. 001-03672) A.9 2004 Proxy Statement of Union Electric Company. (File No. 001-02967) A.10 2004 Proxy Statement of Central Illinois Light Company (File No. 001-02732) B. CHARTERS, ARTICLES OF INCORPORATION, TRUST AGREEMENTS, BY-LAWS, AND OTHER FUNDAMENTAL DOCUMENTS OF ORGANIZATION AMEREN CORPORATION (Ameren) B1.1 Agreement and Plan of Merger, dated as of August 11, 1995, by and among Ameren , CIPSCO Incorporated, Union Electric Company d/b/a AmerenUE (AmerenUE), and Arch Merger Inc. (June 30, 1995 Form 10-Q/A (Amendment No. 1), Exhibit 2(a)). B1.2 Restated Articles of Incorporation of Ameren (File No. 33-64165, Annex F). 37 B. CHARTERS, ARTICLES OF INCORPORATION, TRUST AGREEMENTS, BY-LAWS, AND OTHER FUNDAMENTAL DOCUMENTS OF ORGANIZATION (Continued) B1.3 Certificate of Amendment to Ameren's Restated Articles of Incorporation filed with the Secretary of State of the State of Missouri on December 14, 1998 (1998 Form 10-K, Exhibit 3(i)). B1.4 By-Laws of Ameren as amended to December 31, 1997 (1997 Form 10-K, Exhibit 3(ii)). B1.5 By-Laws of Ameren as amended February 13, 2004 (Exhibit 4.3, File No. 333-112833) UNION ELECTRIC COMPANY (AmerenUE) B2.1 Restated Articles of Incorporation of AmerenUE, as filed with the Secretary of State of the State of Missouri (1993 AmerenUE Form 10-K, Exhibit 3(i)). B2.2 By-Laws of AmerenUE as amended to August 23, 2001 (September 30, 2001 AmerenUE Form 10-Q, Exhibit 3(ii)). CENTRAL ILLINOIS PUBLIC SERVICE COMPANY (AmerenCIPS) B3.1 Restated Articles of Incorporation of AmerenCIPS (March 31, 1994 AmerenCIPS Form 10-Q, Exhibit 3(b)). B3.2 By-Laws of AmerenCIPS as amended effective August 26, 1999 (September 30, 1999 Form 10-Q, Exhibit 3(ii)). AMEREN ENERGY GENERATING COMPANY (GENERATING COMPANY) B4.1 Articles of Incorporation of Generating Company, filed March 2, 2000 (incorporated by reference to Exhibit 3.1 to Generating Company's Registration Statement on Form S-4 (Commission File No. 333-56594)). B4.2 Amendment to Articles of Incorporation of Generating Company, filed April 19, 2000 (incorporated by reference to Exhibit 3.2 to Generating Company's Registration Statement on Form S-4 (Commission File No. 333-56594)). B4.3 By-Laws of Generating Company (incorporated by reference to Exhibit 3.3 to Generating Company's Registration Statement on Form S-4 (Commission File No. 333-56594)). AMEREN ENERGY RESOURCES COMPANY (f/k/a AMEREN INTERMEDIATE HOLDING CO. (RESOURCES COMPANY) B5.1 Articles of Incorporation of Resources Company filed September 3, 1999 (1999 U5S, Exhibit B.1). 38 B. CHARTERS, ARTICLES OF INCORPORATION, TRUST AGREEMENTS, BY-LAWS, AND OTHER FUNDAMENTAL DOCUMENTS OF ORGANIZATION (Continued) B5.2 Articles of Amendment filed March 2, 2000 (1999 U5S, Exhibit B.1). B5.3 By-Laws of the Resources Company effective September 15, 1999 (1999 U5S, Exhibit B.1). MISSOURI CENTRAL RAILROAD COMPANY (RAILROAD COMPANY) B6.1 Certificate of Incorporation of Railroad Company filed June 6, 1997 (2000 U5S, Exhibit B.1). B6.2 Certificate of Amendment of Railroad Company dated October 19, 1999 (2000 U5S, Exhibit B.1). B6.3 Amended and Restated By-Laws of Railroad Company dated September 30, 1999 (2000 U5S, Exhibit B.1). ENPORION, INC. (ENPORION) B7.1 Amended and Restated Certificate of Incorporation of Enporion filed November 6, 2000 (2000 U5S, Exhibit B.2). B7.2 Amended and Restated By-Laws of Enporion dated November 6, 2000 (2000 U5S, Exhibit B.2). ILLINOIS MATERIALS SUPPLY CO. (IMS) B8.1 Articles of Incorporation of IMS filed January 20, 2000 (2000 U5S, Exhibit B.3). B8.2 By-Laws of IMS dated January 20, 2000 (2000 U5S, Exhibit B.3). AMEREN ENERGY MARKETING COMPANY (MARKETING COMPANY) B9.1 Articles of Incorporation of Marketing Company filed March 2, 2000 (2000 U5S, Exhibit B.4). B9.2 By-Laws of Marketing Company dated March 2, 2000 (2000 U5S, Exhibit B.4). AMEREN ENERGY DEVELOPMENT COMPANY (DEVELOPMENT COMPANY) B10.1 Articles of Incorporation of Development Company filed March 27, 2000 (2000 U5S, Exhibit B.5). B10.2 Articles of Amendment of Development Company filed April 19, 2000 (2000 U5S, Exhibit B.5). 39 B. CHARTERS, ARTICLES OF INCORPORATION, TRUST AGREEMENTS, BY-LAWS, AND OTHER FUNDAMENTAL DOCUMENTS OF ORGANIZATION (Continued) B10.3 Amended By-Laws of Development Company dated March 27, 2000 (2000 U5S, Exhibit B.5). AMEREN ENERGY GENERATING COMPANY (GENERATING COMPANY) B11.1 Articles of Incorporation of Generating Company filed March 2, 2000 (2000 U5S, Exhibit B.6). B11.2 By-Laws of Generating Company dated March 2, 2000 (2000 U5S, Exhibit B.6). AMEREN ENERGY FUELS AND SERVICES COMPANY (AFS) B12.1 Articles of Incorporation of AFS filed September 18, 2000 (2000 U5S, Exhibit B.7). B12.2 By-Laws of AFS dated September 18, 2000 (2000 U5S, Exhibit B.7). COWBOY RAILROAD DEVELOPMENT COMPANY, LLC (COWBOY) B13.1 Articles of Organization of Cowboy filed February 15, 2002. B13.2 Operating Agreement of Cowboy. AFS DEVELOPMENT COMPANY, LLC (AFSD) B14.1 Articles of Organization of AFSD filed September 6, 2002. B14.2 Operating Agreement of AFSD. CILCORP INC. (CILCORP) B15.1 Articles of Incorporation of CILCORP as amended November 15, 1999 (CILCORP 1999 Form 10-K, Exhibit 3, File No. 1-8946) (filed herewith on Form SE). B15.2 By-Laws of CILCORP as amended May 20, 2003 (June 30, 2003 CILCORP Form 10-K, Exhibit 3.1, File No. 2-95569)(filed herewith on Form SE). CENTRAL ILLINOIS LIGHT COMPANY (CILCO) B16.1 Articles of Incorporation of CILCO as amended April 28, 1998 (CILCO Form 10-K, Exhibit 3, File No. 1-8946) (filed herewith on Form SE). B16.2 By-Laws of CILCO as amended May 20, 2003, (June 30, 2003 CILCORP Form 10-Q, Exhibit 3.2, File No. 1-2732) (filed herewith on Form SE). 40 B. CHARTERS, ARTICLES OF INCORPORATION, TRUST AGREEMENTS, BY-LAWS, AND OTHER FUNDAMENTAL DOCUMENTS OF ORGANIZATION (Continued) CLM XII, INC. *B17.1 Articles of Incorporation of CLM XII, Inc. filed November 21, 2003 (filed herewith on Form SE). *B17.2 By-Laws of CLM XII, Inc. (filed herewith on Form SE) C. INSTRUMENTS DEFINING THE RIGHTS OF SECURITY HOLDERS, INCLUDING INDENTURES AMEREN CORPORATION (AMEREN) C1.1 Agreement, dated as of October 9, 1998, between Ameren and EquiServe Trust Company, N.A. (as successor to First Chicago Trust Company of New York), as Rights Agent, which includes the form of Certificate of Designation of the Preferred Shares as Exhibit A, the form of Rights Certificate as Exhibit B and the Summary of Rights as Exhibit C (October 14, 1998 Ameren Form 8-K, Exhibit 4). C1.2 Indenture of Ameren with The Bank of New York, as Trustee, relating to senior debt securities dated as of December 1, 2001 (Ameren' Senior Indenture) (File No. 333-81774, Exhibit 4.5). C1.3 Company order relating to $150,000,000 Floating Rate Notes due December 12, 2003 issued under Ameren's Senior Indenture (including the forms of notes) (File No. 333-81774, Exhibit 4.6). C1.4 Company order relating to $100,000,000 5.70% Notes due February 1, 2007 issued under Ameren's Senior Indenture (including the forms of notes) (File No. 333-81774, Exhibit 4.7). C1.5 Company order relating to $345,000,000 Notes due May 15, 2007 issued under Ameren's Senior Indenture (including the forms of notes and certificate of normal unit) (File No. 333-81774, Exhibit 4.8). C1.6 Purchase Contract Agreement dated as of March 1, 2002 between Ameren and The Bank of New York, as purchase contract agent, relating to the 13,800,000 9.75% Adjustable Conversion-Rate Equity Security Units (Equity Security Units) (File No. 333-81774, Exhibit 4.15). C1.7 Pledge Agreement dated as of March 1, 2002 among Ameren, The Bank of New York, as purchase contract agent and BNY Trust Company of Missouri, as collateral agent, custodial agent and securities intermediary, relating to the Equity Security Units (File No. 333-81774, Exhibit 4.16). 41 C.INSTRUMENTS DEFINING THE RIGHTS OF SECURITY HOLDERS, INCLUDING INDENTURES (Continued) UNION ELECTRIC COMPANY (AMERENUE) C2.1 Order of the Securities and Exchange Commission dated October 16, 1945 in File No. 70-1154 permitting the issue of Preferred Stock, $3.70 Series (File No. 2-27474, Exhibit 3-E). C2.2 Order of the Securities and Exchange Commission dated April 30, 1946 in File No. 70-1259 permitting the issue of Preferred Stock, $3.50 Series (File No. 2-27474, Exhibit 3-F). C2.3 Order of the Securities and Exchange Commission dated October 20, 1949 in File No. 70-2227 permitting the issue of Preferred Stock, $4.00 Series (File No. 2-27474, Exhibit 3-G). C2.4 Indenture of Mortgage and Deed of Trust of AmerenUE dated June 15, 1937 (Mortgage), as amended May 1, 1941, and Second Supplemental Indenture dated May 1, 1941 (File No. 2-4940, Exhibit B-1). C2.5 Supplemental Indentures to Mortgage Dated as of File Reference Exhibit No. ----------- -------------- ----------- April 1, 1971 Form 8-K, April 1971 6 February 1, 1974 Form 8-K, February 1974 3 July 7, 1980 2-69821 4.6 December 1, 1991 33-45008 4.4 December 4, 1991 33-45008 4.5 January 1, 1992 Form 10-K, 1991 4.6 October 1, 1992 Form 10-K, 1992 4.6 December 1, 1992 Form 10-K, 1992 4.7 February 1, 1993 Form 10-K, 1992 4.8 May 1, 1993 Form 10-K, 1993 4.6 August 1, 1993 Form 10-K, 1993 4.7 October 1, 1993 Form 10-K, 1993 4.8 January 1, 1994 Form 10-K, 1993 4.9 February 1, 2000 Form 10-K, 2000 4.1 August 15, 2002 Form 8-K, August 22, 2002 4.3 March 5, 2003 Form 8-K, March 10, 2003 4.4 April 1, 2003 Form 8-K, April 9, 2003 4.4 July 15, 2003 Form 8-K, July 28, 2003 4.4 October 1, 2003 Form 8-K, October 1, 2003 4.4 C2.6 Indenture (for unsecured subordinated debt securities) of AmerenUE dated as of December 1, 1996 (1996 AmerenUE Form 10-K, Exhibit 4.36) . 42 C. INSTRUMENTS DEFINING THE RIGHTS OF SECURITY HOLDERS, INCLUDING INDENTURES (Continued) C2.7 Loan Agreement dated as of December 1, 1991 between the State Environmental Improvement and Energy Resources Authority and AmerenUE, together with Indenture of Trust dated as of December 1, 1991 between the Authority and UMB Bank, N.A., as successor trustee (1992 AmerenUE Form 10-K, Exhibit 4.37). C2.8 Loan Agreement dated as of December 1, 1992, between the State Environmental Improvement and Energy Resources Authority and AmerenUE, together with Indenture of Trust dated as of December 1, 1992 between the Authority and UMB Bank, N.A., as successor trustee (1992 AmerenUE Form 10-K, Exhibit 4.38). C2.9 Fuel Lease dated as of February 24, 1981 between AmerenUE, as lessee, and Gateway Fuel Company, as lessor, covering nuclear fuel (1980 AmerenUE Form 10-K, Exhibit 10.20). C2.10 Amendments to Fuel Lease dated as of May 8, 1984 and October 15, 1984, respectively, between AmerenUE, as lessee, and Gateway Fuel Company, as lessor, covering nuclear fuel (Registration No. 2-96198, Exhibit 4.28). C2.11 Amendment to Fuel Lease dated as of October 15, 1986 between AmerenUE, as lessee, and Gateway Fuel Company, as lessor, covering nuclear fuel (September 30, 1986 AmerenUE Form 10-Q, Exhibit 4.3). C2.12 Series 1998A Loan Agreement dated as of September 1, 1998 between The State Environmental Improvement and Energy Resources Authority of the State of Missouri and AmerenUE (September 30, 1998 AmerenUE Form 10-Q, Exhibit 4.28). C2.13 Trust Indenture - Environmental Bonds, Series 1998A (1998 U5S, Exhibit C1.2). C2.14 Indenture of Mortgage and Deed of Trust of AmerenUE dated June 15, 1937 (Mortgage), as amended May 1, 1941, and Second Supplemental Indenture dated May 1, 1941 (File No. 2-4940, Exhibit B-1) . C2.15 Indenture of Mortgage and Deed of Trust of AmerenUE dated June 15, 1937 (Mortgage), as amended May 1, 1941, and Second Supplemental Indenture dated May 1, 1941 (File No. 2-4940, Exhibit B-1). C2.16 Series 1998B Loan Agreement dated as of September 1, 1998 between The State Environmental Improvement and Energy Resources Authority of the State of Missouri and AmerenUE (September 30, 1998 AmerenUE Form 10-Q, Exhibit 4.29). C2.17 Trust Indenture - Environmental Bonds, Series 1998B (1998 U5S, Exhibit C1.3). C2.18 Series 1998C Loan Agreement dated as of September 1, 1998 between The State Environmental Improvement and Energy Resources Authority of the State of Missouri and AmerenUE (September 30, 1998 AmerenUE Form 10-Q, Exhibit 4.30). 43 C. INSTRUMENTS DEFINING THE RIGHTS OF SECURITY HOLDERS, INCLUDING INDENTURES (Continued) C2.19 Trust Indenture - Environmental Bonds, Series 1998C (1998 U5S, Exhibit C1.5). C2.20 Trust Indenture - Environmental Improvement Revenue Refunding Bonds, Series 2000A, 2000B and 2000C (1999 U5S, Exhibit C1.1). C2.21 Loan Agreement - Environmental Improvement Revenue Refunding Bonds, Series 2000A, 2000B and 2000C (1999 U5S, Exhibit C1.2). C2.22 Indenture dated as of August 15, 2002, from AmerenUE to The Bank of New York, as Trustee, relating to senior secured debt securities (including the forms of senior secured debt securities as exhibits) (AmerenUE Form 8-K dated August 22, 2002, Exhibit 4.1). C2.23 UE Company Order dated August 22, 2002 establishing the 5.25% Senior Secured Notes due 2012 (Form 8-K dated August 22, 2002, Exhibit 4.2). C2.24 UE Company Order dated March 10, 2003, establishing the 5.50% senior secured notes due 2034 (Form 8-K, March 10, 2003, Exhibit 4.2) C2.25 UE Company Order dated April 9, 2003, establishing the 4.75% senior secured notes due 2015 (Form 8-K, April 9, 2003, Exhibit 4.2). C2.26 UE Company Order dated July 28, 2003, establishing the 5.10% senior secured notes due 2018. (Form 8-K, July 28, 2003, Exhibit 4.2) C2.27 UE Company Order dated October 7, 2003, establishing the 4.65% senior secured notes due 2013 (Form 8-K, October 7, 2003, Exhibit 4.2) CENTRAL ILLINOIS PUBLIC SERVICE COMPANY (AMERENCIPS) C3.1 Indenture of Mortgage or Deed of Trust dated October 1, 1941, from AmerenCIPS to Continental Illinois National Bank and Trust Company of Chicago and Edmond B. Stofft, as Trustees (U.S. Bank Trust National Association and Patrick J. Crowley are successor Trustees) (Exhibit 2.01 in File No. 2-60232). C3.2 Supplemental indentures to the AmerenCIPS Mortgage. Dated as of File Reference Exhibit No. ----------- -------------- ----------- September 1, 1947 2-7341 Amended 7(b) January 1, 1949 2-7795 Second Amended 7.03 February 1, 1952 2-9353 Second Amended 4.07 September 1, 1952 2-9802 Amended 4.05 June 1, 1954 2-10944 Amended 4.02 February 1, 1958 2-13866 Amended 2.02 January 1, 1959 2-14656 Amended 2.02 44 C. INSTRUMENTS DEFINING THE RIGHTS OF SECURITY HOLDERS, INCLUDING INDENTURES (Continued) May 1, 1963 2-21345 Amended 2.02 May 1, 1964 2-22326 Amended 2.02 June 1, 1965 2-23569 Amended 2.02 May 1, 1967 2-26284 Amended 2.02 April 1, 1970 2-36388 Amended 2.02 April 1, 1971 2-39587 Amended 2.02 September 1, 1971 2-41468 Amended 2.02 May 1, 1972 2-43912 Amended 2.02 December 1, 1973 2-60232 2.03 March 1, 1974 2-50146 Amended 2.02 April 1, 1975 2-52886 Amended 2.02 October 1, 1976 2-57141 Second Amended 2.04 November 1, 1976 2-57557 Amended 2.04 October 1, 1978 2-62564 Amended 2.06 August 1, 1979 2-65914 2.02(a) February 1, 1980 2-66380 2.02(a) February 1, 1986 33-3188 Amended 4.02 May 15, 1992 Form 8-K, May 15, 1992 4.02 July 1, 1992 Form 8-K, July 1, 1992 4.02 September 15, 1992 Form 8-K, September 15, 1992 4.02 April 1, 1993 Form 8-K, March 30, 1993 4.02 June 1, 1995 Form 8-K, June 1, 1995 4.03 March 15, 1997 Form 8-K, March 15, 1997 4.03 June 1, 1997 Form 8-K, June 1, 1997 4.03 December 1, 1998 333-59438 4.2 June 1, 2001 CIPS Form 10-Q, June 2001 4.1 C3.3 Indenture dated as of December 1, 1998 from AmerenCIPS to The Bank of New York relating to Senior Notes, 5.375% due 2008 and 6.125% due 2028 (Exhibit 4.4, in File No. 333-59438). C3.4 Trust Indenture - Pollution Control Revenue Refunding Bonds, Series 2000A (1999 U5S, Exhibit C2.1). C3.5 Loan Agreement - Pollution Control Revenue Refunding Bonds, Series 2000A (1999 U5S, Exhibit C2.2). AMEREN ENERGY GENERATING COMPANY (GENERATING COMPANY) C4.1 Indenture, dated as of November 1, 2000, between Generating Company and The Bank of New York, as Trustee, relating to senior notes (the "Generating Indenture") (Exhibit 4.1 to Generating Company's Registration Statement on Form S-4 (Commission File No. 333-56594)). 45 C. INSTRUMENTS DEFINING THE RIGHTS OF SECURITY HOLDERS, INCLUDING INDENTURES (Continued) C4.2 First Supplemental Indenture to the Generating Indenture, dated as of November 1, 2000 (Exhibit 4.2 to Generating Company Registration Statement on Form S-4 (Commission File No. 333-56594)). C4.3 Form of Second Supplemental Indenture to the Generating Indenture, dated as of June 12, 2001 (Exhibit 4.3 to Generating Company' Registration Statement on Form S-4 (Commission File No. 333-56594)). C4.4 Third Supplemental Indenture to the Generating Indenture, dated as of June 1, 2002 (including as exhibit the form of Note) (Exhibit 4.1 to Generating Company's quarterly report on Form 10-Q for the quarter ended June 30, 2002). C4.5 Fourth Supplemental Indenture to the Generating Indenture, dated as of January 15, 2003, (including as exhibit the form of Note (Exhibit 4.5 to Generating Company's Form 10-K, File No. 333-56594). CILCORP INC. (CILCORP) C5.1 Indenture, dated as of October 18, 1999, between Midwest Energy, Inc. and The Bank of New York, as Trustee, and First Supplemental Indenture, dated as of October 18, 1999, between CILCORP and the Bank of New York (Filed as Exhibit 4.1 and 4.2, File No. 333-90373). CENTRAL ILLINOIS LIGHT COMPANY (CILCO) C6.1 Indenture of Mortgage and Deed of Trust between Illinois Power and Bankers Trust Company, as Trustee, dated as of April 1, 1933 (CILCO Mortgage), Supplemental Indenture between CILCO and Bankers Trust Company, as Trustee, dated as of July 1, 1933 and Supplemental Indenture between the same parties dated as of January 1, 1935, securing first mortgage bonds (Designated in Registration No. 2-1937 as Exhibit B-1, in Registration No. 2-2093 as Exhibit B-1(a), in Form 8-K for April 1940. C6.2 Supplemental Indentures to Mortgage Dated as of File Reference Exhibit No. ----------- -------------- ---------- December 1, 1949 Form 8-K Exhibit A December 1, 1951 Form 8-K Exhibit A July 1, 1957 Form 8-K Exhibit A July 1, 1958 Form 8-K Exhibit A March 1, 1960 Form 8-K Exhibit A September 20, 1961 Form 8-K Exhibit A March 1, 1963 Form 8-K Exhibit A February 1, 1966 Form 8-K Exhibit A March 1, 1967 Form 8-K Exhibit A 46 C.INSTRUMENTS DEFINING THE RIGHTS OF SECURITY HOLDERS, INCLUDING INDENTURES (Continued) August 1, 1970 Form 8-K Exhibit A September 1, 1971 Form 8-K Exhibit A September 20, 1972 Form 8-K Exhibit A April 1, 1974 Form 8-K Exhibit A June 1, 1974 Form 8-K Exhibit 2(b) March 1, 1975 Form 8-K Exhibit A May 1, 1976 Form 8-K Exhibit A May 16, 1978 Form 8-K Exhibit A September 1, 1982 Form 8-K Exhibit 2 January 15, 1992 Form 8-K Exhibit (4)(b) January 1, 1993 Form 8-K Exhibit (4) November 1, 1994 Form 8-K Exhibit 4 47 *D. AGREEMENT ALLOCATING CONSOLIDATED INCOME TAX LIABILITY BY AMEREN CORPORATION AND SUBSIDIARIES *F. SCHEDULES SUPPORTING ITEMS OF THE REPORT F-1 The opinion of the independent accountants as to the consolidated financial statements and the footnotes are included in Exhibit A.1, which is incorporated by reference. F-2 Supporting plant, depreciation and reserve schedules for Union Electric Company from FERC Form No. 1 - Annual Report of Major Electric Utilities, Licensees, and Others, FERC Form No. 2 - Annual Report of Natural Gas Companies, and Form 21 ILCC - Annual Report of Electric Utilities Licensees and/or Natural Gas Utilities as follows: Summary of Utility Plant and Accumulated Provisions for Depreciation, Amortization and Depletion (Electric & Gas) Nuclear Fuel Materials Electric Plant in Service Gas Plant in Service Electric Plant Held for Future Use Construction Work in Progress - Electric Construction Work in Progress - Gas Accumulated Provision for Depreciation of Electric Utility Plant Accumulated Provision for Depreciation of Gas Utility Plant Gas Stored Non-utility Property Accumulated Provision for Depreciation and Amortization of Non-utility Property Depreciation and Amortization of Electric Plant Depreciation, Depletion and Amortization of Gas Plant F-3 Supporting plant, depreciation and reserve schedules for Central Illinois Public Service Company from FERC Form No. 1 - Annual Report of Major Electric Utilities, Licensees, and Others and Form 21 ILCC - Annual Report of Electric Utilities Licensees and/or Natural Gas Utilities as follows: Summary of Utility Plant and Accumulated Provisions for Depreciation, Amortization and Depletion (Electric & Gas) 48 Electric Plant in Service Gas Plant in Service Manufactured Gas Production Plant - Supplemental Schedule Electric Plant Held for Future Use Gas Plant Held for Future Use Construction Work in Progress - Electric Construction Work in Progress - Gas Accumulated Provision for Depreciation of Electric Utility Plant Accumulated Provision for Depreciation of Gas Utility Plant Gas Stored Non-utility Property Accumulated Provision for Depreciation and Amortization of Non-utility Property Depreciation and Amortization of Electric Plant Depreciation, Depletion and Amortization of Gas Plant F-4 Supporting plant, depreciation and reserve schedules for Ameren Energy Generating Company from FERC Form No. 1 - Annual Report of Major Electric Utilities, Licensees, and Others as follows: Summary of Utility Plant and Accumulated Provisions for Depreciation, Amortization and Depletion (Electric & Gas) Nuclear Fuel Materials Electric Plant in Service Electric Plant Held for Future Use Construction Work in Progress - Electric Construction Overheads - Electric Accumulated Provision for Depreciation of Electric Utility Plant Non-utility Property Depreciation and Amortization of Electric Plant F-5 Supporting plant, depreciation and reserve schedules for Central Illinois Light Company from FERC Form No. 1 - Annual Report of Major Electric Utilities, Licensees, and Others and Form 21 ILCC - Annual Report of Electric Utilities Licensees and/or Natural Gas Utilities as follows: Summary of Utility Plant and Accumulated Provisions for Depreciation, Amortization and Depletion (Electric & Gas) 49 Electric Plant in Service Gas Plant in Service Manufactured Gas Production Plant - Supplemental Schedule Electric Plant Held for Future Use Gas Plant Held for Future Use Construction Work in Progress - Electric Construction Work in Progress - Gas Accumulated Provision for Depreciation of Electric Utility Plant Accumulated Provision for Depreciation of Gas Utility Plant Gas Stored Non-utility Property Accumulated Provision for Depreciation and Amortization of Non-utility Property Depreciation and Amortization of Electric Plant Depreciation, Depletion and Amortization of Gas Plant G. ORGANIZATIONAL CHART SHOWING THE RELATIONSHIP OF EACH EWG IN WHICH THE SYSTEM HOLDS AN INTEREST TO OTHER SYSTEM COMPANIES (filed herewith on Form SE). 50 H. FINANCIAL STATEMENTS FOR EACH EWG OF THE REGISTERED HOLDING COMPANY H.1 Audited Financial Statements for AmerenEnergy Generating Company (File No. 333-56594, Form 10-K, filed under the Securities and Exchange Act of 1933) *H.2 Audited Consolidated Financial Statements for Electric Energy, Inc. and Subsidiaries (filed confidentially on Form SE) *H.3 Unaudited Consolidated Financial Statements for AmerenEnergy Development Company (filed confidentially on Form SE, Appendix B) *H.4 Unaudited Financial Statements for Midwest Electric Power, Inc. (filed confidentially on Form SE) 51 SIGNATURE Ameren Corporation, a registered holding company, has duly caused this annual report for the year ended December 31, 2003 to be signed on its behalf by the undersigned thereunto duly authorized, pursuant to the requirements of the Public Utility Holding Company Act of 1935. AMEREN CORPORATION By: /s/ Martin J. Lyons, Jr. ------------------------------ Martin J. Lyons, Jr. Controller April 29, 2004 52 Charles W. Mueller retired on December 31, 2003 as an officer of Ameren Corporation. Gary L. Rainwater was elected Chairman and Chief Executive Officer of Ameren Corporation and certain subsidiaries effective January 1, 2004.