SEC Filing | Exelon Corporation

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM U-9C-3 QUARTERLY REPORT PURSUANT TO RULE 58 September 30, 2003 Exelon Corporation 10 South Dearborn Street 37th Floor P.O. Box 805379 Chicago, IL 60680-5379 Inquiries concerning this Form U-9C-3 should be directed to: Scott Peters Exelon Corporation 10 South Dearborn Street 38th Floor P.O. Box 805379 Chicago, IL 60680-5379

TABLE OF CONTENTS Item Page Number Number 1 Organization Chart 3 2 Issuances and Renewals of Securities and Capital Contributions 5 3 Associate Transactions Part I - Transactions Performed by Reporting Companies on Behalf of Associate Companies 6 Part II - Transactions Performed by Associate Companies On Behalf of Reporting Companies 6 4 Summary of Aggregate Investment 7 5 Other Investments 8 6 Financial Statements and Exhibits 9 Signature 11 2

ITEM 1. ORGANIZATION CHART - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Energy or Date of % Voting Name of Reporting Company Gas-Related Organization Securities Nature of Business - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Corporation (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Energy Delivery Company, LLC - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Commonwealth Edison Company (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Commonwealth Research Corporation Energy 06/08/1976 100% Energy-related (Category 1,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ PECO Energy Company (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ East Coast Natural Gas Cooperative, LLC Energy 03/15/1995 41.12% Energy-related (Category 9) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Horizon Energy Company * Energy 02/06/1995 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Ventures Company, LLC (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Generation Company, LLC (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon AOG Holding # 1, Inc. (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon AOG Holding # 2, Inc. (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon New England Power Marketing, LP Energy 03/24/1999 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon New England Holdings, LLC (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon New England Power Services, Inc. Energy 02/05/1998 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Hamilton, LLC Energy 03/31/1999 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Penesco Company, LLC Energy 06/06/2001 100% Energy-related (Category 7,9) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Cenesco Company, LLC Energy 12/31/2001 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ ExTex Retail Services Company, LLC Energy 05/12/2003 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Allowance Management Company, LLC Energy 11/08/2001 100% Energy-related (Category 2) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Power Labs, LLC Energy 11/08/2002 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Power Holdings, LP (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Keystone Fuels, LLC Energy 10/17/2000 20.99% Energy-related (Category 9) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Conemaugh Fuels, LLC Energy 10/16/2002 20.72% Energy-related (Category 9) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ ExTex Marketing, LLC Energy 05/13/2002 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ ExTex Power, LP Energy 05/13/2002 99% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Enterprises Company, LLC (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Energy Company Energy 01/04/1999 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ AllEnergy Gas & Electric Marketing Energy 09/12/2000 100% Energy-related (Category 5) Company, LLC - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ AllEnergy Connecticut Company, LLC Energy 06/13/2003 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ AllEnergy Massachusetts Company, LLC Energy 06/13/2003 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ AllEnergy New York Company, LLC Energy 06/13/2003 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ AllEnergy New Jersey Company, LLC Energy 06/13/2003 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ AllEnergy Rhode Island Company, LLC Energy 06/13/2003 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Texas-Ohio Gas, Inc. Energy 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Services, Inc. Energy 07/13/1999 100% Energy-related (Category 1, 2,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Services Federal Group, Inc Energy 12/30/1988 100% Energy-related (Category 1,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Unicom Power Holdings, LLC Energy 03/23/1999 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Unicom Power Marketing Inc. Energy 07/28/1997 100% Energy-related (Category 5) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Enterprises Management, Inc. (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Capital Partners, Inc. (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Enterprises Investments, Inc. (a) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ UTECH Climate Challenge Fund, L.P. Energy 6/30/1995 24.4% Energy-related (Category 2) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Adwin Equipment Company Energy 08/05/1968 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Thermal Holdings, Inc. Energy 08/05/1997 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Northwind Chicago LLC Energy 08/05/1999 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Thermal Development, Inc. Energy 02/05/1997 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Exelon Thermal Technologies, Inc. Energy 07/30/1993 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ ETT Boston Inc. Energy 12/22/1995 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Northwind Boston LLC Energy 01/05/1996 25% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ ETT Houston Inc. Energy 02/05/1997 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ ETT North America Inc. Energy 07/18/1996 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Northwind Thermal Technologies Canada Energy 08/01/1996 100% Energy-related (Category 6,7) Inc. - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ ETT Canada, Inc. Energy 08/01/1996 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Northwind Windsor Energy 07/18/1996 50% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ ETT National Power Inc. Energy 08/15/1997 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Northwind Midway LLC Energy 06/02/1998 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ * Denotes inactive corporation. (a) Directly and / or indirectly holds securities in energy-related companies. 3

Item 1 ORGANIZATION CHART - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Name of Reporting Company Energy or Date of % Voting Nature of Business Gas-Related Organization Securities - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ ETT Nevada Inc. Energy 10/30/1997 100% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Northwind Aladdin LLC Energy 10/28/1997 75% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Northwind Las Vegas LLC Energy 10/28/1997 50% Energy-related (Category 6,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ F&M Holdings Company, LLC Energy 09/18/2003 100% Energy-related (Category 1,4,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ EIS Engineering, Inc* Energy 12/11/2000 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ InfraSource F.S., LLC* Energy 11/23/1998 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ InfraSource E.S., LLC* Energy 02/03/2000 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Fischbach and Moore Electric, Inc. Energy 08/12/1999 100% Energy-related (Category 1,2,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Rand-Bright Corporation* Energy 02/11/1985 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ NEWCOSY, Inc Energy 08/12/1999 100% Energy-related (Category 1,2,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ NEWCOTRA, Inc. Energy 08/12/1999 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Fishbach and Moore, Inc. . Energy 04/01/1924 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Fishbach and Moore Electrical Energy 07/22/1946 100% Energy-related (Category 7) Contracting, Inc. - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ T.H. Green Electric Co., Inc. Energy 07/06/1926 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ OSP Servicios S.A. de C.V. * Energy 09/30/1996 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Utility Locate & Mapping Services, Inc. Energy 03/27/1991 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ Universal Network Development Corp. Energy 01/01/1901 49% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ VSI Group Inc. Energy 04/20/2000 100% Energy-related (Category 1,2,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ EGW Meter Services, LLC Energy 12/01/2002 100% Energy-related (Category 1,2,7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ EIS Investments, LLC Energy 11/14/2000 100% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ WCB Services, LLC* Energy 1/1/192001 49% Energy-related (Category 7) - ------------------------------------------------------- ------------- ------------- ----------- ------------------------------ * Denotes inactive corporation (a) Directly and / or indirectly holds securities in energy-related companies. Notes: 1. The following companies were sold effective September 24, 2003: Aconite Corporation Blair Park Services, Inc. Chowns Communications, Inc. Dacon Corporation Dashiell Corporation Dashiell Holdings Corporation Electric Services, Inc. Gas Distribution Contractors, Inc. InfraSource Corporate Services, Inc. InfraSource Underground Construction, LLC InfraSource, Inc. International Communications Services, Inc. M.J. Electric, Inc. Mechanical Specialities Incorporated Mid-Atlantic Pipeliners MRM Technical Group, Inc. Mueller Distribution Contractors, Inc. Mueller Pipeliners, Inc. OSP Consultants, Inc. OSP Telecomm de Mexico, S.A. de C.V. OSP Telecomm, Inc. OSP, Inc. RJE Telecom, Inc. Sunesys of Virginia, Inc. Sunesys, Inc. Trinity Industries, Inc. 2. The following companies were sold on September 1, 2003 4

AllEnergy Rhode Island Company, L.L.C. AllEnergy Massachusetts Company, L.L.C. AllEnergy Connecticut Company, L.L.C. 3. The following are newly created companies: AllEnergy Gas Marketing Company New Jersey, LLC, formation in Delaware on 7/10/2003. Rule 58, retail marketing of natural gas and energy-related services. AllEnergy Gas Marketing Company New York, LLC, formation in Delaware on 7/10/2003. Rule 58, retail marketing of natural gas and energy-related services. F&M Holdings Company, LLC, formation in Delaware on 9/18/2003. Holding company for Rule 58 companies. ITEM 2. ISSUANCES AND RENEWALS OF SECURITIES AND CAPITAL CONTRIBUTIONS (in thousands of dollars) - --------------- --------------- ---------------- ---------------- --------------- --------------- ------------ -------------- Principal Company Type of Amount of Person to Collateral Consideration Issuing Security Security Issue or Cost of Whom Security Given With Received For Securities Issued Renewal Capital was Issued Security Each security - --------------- --------------- ---------------- ---------------- --------------- --------------- ------------ -------------- Exelon Revolving $100 Issue LIBOR plus 50 Exelon None $100 Thermal credit basis points Thermal Development, Holdings, Inc. Inc. - --------------- --------------- ---------------- ---------------- --------------- --------------- ------------ -------------- Exelon Revolving 200 Issue LIBOR plus 50 Exelon None 200 Thermal credit basis points Thermal Technologies, Holdings, Inc. Inc. - --------------- --------------- ---------------- ---------------- --------------- --------------- ------------ -------------- Fischbach and Revolving 1,731 Issue LIBOR plus 50 Exelon None 1,731 Moore credit basis points Enterprises Electric, Inc. Company, LLC - --------------- --------------- ---------------- ---------------- --------------- --------------- ------------ -------------- Exelon Energy Revolving 4,000 Issue LIBOR plus 50 Exelon None 4,000 Company credit basis points Enterprises Company, LLC - --------------- --------------- ---------------- ---------------- --------------- --------------- ------------ -------------- Exelon Revolving 500 Issue LIBOR plus 50 Exelon None 500 Enterprises credit basis points Enterprises Management, Company, LLC Inc. - --------------- --------------- ---------------- ---------------- --------------- --------------- ------------ -------------- Capital Contributions (in thousands of dollars): - ------------------------------------------- ---------------------------------------- ---------------------------------------- Company Contributing Capital Company Receiving Capital Amount of Capital Contribution - ------------------------------------------- ---------------------------------------- ---------------------------------------- Exelon Enterprises Company, LLC InfraSource, Inc. $7,054 - ------------------------------------------- ---------------------------------------- ---------------------------------------- Exelon Power Holdings, LLC Conemaugh Fuels, LLC 1,554 - ------------------------------------------- ---------------------------------------- ---------------------------------------- Exelon Generation Company, LLC ExTex Marketing, LLC 5 - ------------------------------------------- ---------------------------------------- ---------------------------------------- 5

ITEM 3. ASSOCIATE TRANSACTIONS Part I. Transactions Performed by Reporting Companies on Behalf of Associate Companies - ------------------------------------------------------------------------------------------------------------------- Reporting Company Rendering Associate Company Receiving Types of Services Rendered Total Amount Billed Services Services - ------------------------------------------------------------------------------------------------------------------- (thousands of dollars) - ------------------------------------------------------------------------------------------------------------------- Blair Park Services Inc. PECO Energy Company Telecom $296 - ------------------------------------------------------------------------------------------------------------------- Commonwealth Edison Company Exelon Thermal Technologies, Offsite Facility Charge 2 Inc. - ------------------------------------------------------------------------------------------------------------------- Exelon Services, Inc. Exelon Business Services Security System 58 Company - ------------------------------------------------------------------------------------------------------------------- Exelon Enterprises Company, Exelon Thermal Technologies, Payroll - Executive 172 LLC Inc. - ------------------------------------------------------------------------------------------------------------------- Exelon Services, Inc. Commonwealth Edison Company Maintenance and Construction 223 Services - ------------------------------------------------------------------------------------------------------------------- Exelon Services, Inc. Exelon Energy Company IT Services/Facility Charges 99 - ------------------------------------------------------------------------------------------------------------------- Exelon Services, Inc. Exelon Enterprises Company, IT Services/Facility Charges 23 LLC - ------------------------------------------------------------------------------------------------------------------- Exelon Services, Inc. Exelon Business Services Group Construction Services 192 - ------------------------------------------------------------------------------------------------------------------- Electric Services, Inc Exelon Generation Company, LLC Security System 13 - ------------------------------------------------------------------------------------------------------------------- Exelon Services, Inc. Commonwealth Edison Company Security System 41 - ------------------------------------------------------------------------------------------------------------------- Exelon Services, Inc PECO Energy Company Security System 127 - ------------------------------------------------------------------------------------------------------------------- Exelon Thermal Development, Northwind Aladdin LLC Plant Operators 84 Inc. - ------------------------------------------------------------------------------------------------------------------- Exelon Thermal Technologies, Northwind Aladdin LLC Administrative and General 3 Inc. - ------------------------------------------------------------------------------------------------------------------- Exelon Thermal Technologies, Northwind Aladdin LLC Plant Management 23 Inc. - ------------------------------------------------------------------------------------------------------------------- Exelon Thermal Technologies, Northwind Chicago LLC District Cooling 255 Inc. - ------------------------------------------------------------------------------------------------------------------- Exelon Thermal Technologies, Northwind Chicago LLC Plant Operators 115 Inc. - ------------------------------------------------------------------------------------------------------------------- Exelon Thermal Technologies, Northwind Chicago LLC Administrative and General 1 Inc. - ------------------------------------------------------------------------------------------------------------------- Exelon Thermal Technologies, Northwind Chicago LLC Rent 27 Inc. - ------------------------------------------------------------------------------------------------------------------- Exelon Thermal Technologies, Northwind Midway LLC Plant Operators 147 Inc. - ------------------------------------------------------------------------------------------------------------------- Electric Services, Inc. PECO Energy Company Construction and Maintenance 181 - ------------------------------------------------------------------------------------------------------------------- Mid-Atlantic Pipeliners, Inc. PECO Energy Company Construction 10,884 - ------------------------------------------------------------------------------------------------------------------- Dashiell Corporation PECO Energy Company Construction and Maintenance 11 - ------------------------------------------------------------------------------------------------------------------- MJ Electric, Inc. Commonwealth Edison Company Construction and Maintenance 10,972 - ------------------------------------------------------------------------------------------------------------------- MJ Electric, Inc. PECO Energy Company Construction and Maintenance 229 - ------------------------------------------------------------------------------------------------------------------- Northwind Chicago, LLC Exelon Thermal Technologies, Cooling 1,791 Inc. - ------------------------------------------------------------------------------------------------------------------- VSI Group, Inc. PECO Energy Company Transfer Work and Meter Reading 87 (AMR Project) - ------------------------------------------------------------------------------------------------------------------- Exelon Power Labs, LLC Exelon Generation Company, LLC Measuring and test equipment 2,437 - ------------------------------------------------------------------------------------------------------------------- Exelon Power Labs, LLC PECO Energy Company Measuring and test equipment 196 - ------------------------------------------------------------------------------------------------------------------- ITEM 3. ASSOCIATE TRANSACTIONS Part II. Transactions Performed by Associate Companies on Behalf of Reporting Companies - ------------------------------------------------------------------------------------------------------------------------ Associate Company Rendering Reporting Company Receiving Services Types of Services Rendered Total Amount Billed Services - ------------------------------------------------------------------------------------------------------------------------ (thousands of dollars) - ------------------------------------------------------------------------------------------------------------------------ Exelon Business Services Company InfraSource Corporate Services Legal 122 - ------------------------------------------------------------------------------------------------------------------------ Exelon Enterprises Company, LLC InfraSource Corporate Services Payroll - Executive 98 - ------------------------------------------------------------------------------------------------------------------------ Exelon Business Services Company InfraSource Corporate Services Rent, Teleconferencing, 34 Phones, Computers, IT and Accounting - ------------------------------------------------------------------------------------------------------------------------ PECO Energy Company InfraSource Integrated Services Vehicle Expenses and 1,052 Materials - ------------------------------------------------------------------------------------------------------------------------ 6

ITEM 4. SUMMARY OF AGGREGATE INVESTMENT September 30, 2003 (in thousands) Investments in energy-related companies: Total consolidated capitalization of Exelon Corporation as of September 30, 2003 $23,882,000 Line 1 Total capitalization multiplied by 15% (line 1 multiplied by 0.15) $3,582,450 Line 2 Greater of $50 million or line 2 3,582,450 Line 3 Total current aggregate investment subsequent to October 20, 2000 (categorized by major line of energy-related business): Energy-related business category 2 229,125 Energy-related business category 5 258,347 Energy-related business category 6 54,973 Energy-related business category 7 426,664 Energy-related business category 9 9,183 Energy-related business category 10 22 Total current aggregate investment 978,314 Line 4 ------- Difference between the greater of $50 million or 15% of capitalization and the total aggregate investment of the registered holding company system (line 3 less line 4) $2,604,136 Line 5 ========== Investments in gas-related companies: NONE 7

ITEM 5. OTHER INVESTMENTS Filed under confidential treatment pursuant to Rule 104(b). 8

ITEM 6 - FINANCIAL STATEMENTS AND EXHIBITS Financial Statements - -------------------- (1) Exhibit A-1 Statement of Income of Exelon Services, Inc. for three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (2) Exhibit A-2 Balance Sheet of Exelon Services, Inc. at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (3) Exhibit A-3 Statement of Income of Exelon Thermal Holdings, Inc. for three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (4) Exhibit A-4 Balance Sheet of Exelon Thermal Holdings, Inc. at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (5) Exhibit A-5 Statement of Income of Exelon Energy Company for three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (6) Exhibit A-6 Balance Sheet of Exelon Energy Company at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (7) Exhibit A-7 Statement of Income of Unicom Power Holdings, Inc. for three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (8) Exhibit A-8 Balance Sheet of Unicom Power Holdings, Inc. at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (9) Exhibit A-9 Statement of Income of Unicom Power Marketing, Inc. for three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (10) Exhibit A-10 Balance Sheet of Unicom Power Marketing, Inc. at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (11) Exhibit A-11 Statement of Income of Adwin Equipment Company for three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (12) Exhibit A-12 Balance Sheet of Adwin Equipment Company at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (13) Exhibit A-13 Statement of Income of F&M Holdings Company, LLC for three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (14) Exhibit A-14 Balance Sheet of F&M Holdings Company, LLC at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (15) Exhibit B-1 Statement of Income of Penesco Company, LLC for three months and six months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). 9

(16) Exhibit B-2 Balance Sheet of Penesco Company, LLC at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (17) Exhibit B-3 Statement of Income of Cenesco Company, LLC for three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (18) Exhibit B-4 Balance Sheet of Cenesco Company, LLC at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (19) Exhibit B-5 Statement of Income of Exelon Allowance Management Co. for three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (20) Exhibit B-6 Balance Sheet of Exelon Allowance Management Co. at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (21) Exhibit B-7 Statement of Income of ExTex Marketing, LLC for three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (22) Exhibit B-8 Balance Sheet of ExTex Marketing, LLC at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (23) Exhibit B-9 Statement of Income of ExTex Power, LP for the three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (24) Exhibit B-10 Balance Sheet of ExTex Power, LP at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (25) Exhibit B-11 Statement of Income of Exelon New England Power Marketing LP for the three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (26) Exhibit B-12 Balance Sheet of Exelon New England Power Marketing LP at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (27) Exhibit B-13 Statement of Income of Exelon New England Power Services, Inc. for the three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (28) Exhibit B-14 Balance Sheet of Exelon New England Power Services, Inc. at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (29) Exhibit B-15 Statement of Income of Exelon Hamilton for the three and nine months ended September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). (30) Exhibit B-16 Balance Sheet of Exelon Hamilton at September 30, 2003 - filed under confidential treatment pursuant to Rule 104(b). 10

SIGNATURE Pursuant to the requirements of the Public Utility Holding Company Act of 1935, Exelon Corporation has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Date: November 26, 2003 Exelon Corporation Registrant By:/s/ Matthew F. Hilzinger --------------------------- Vice President and Corporate Controller With the above signature, I also hereby certify that the corresponding report on Form U-9C-3 for the third quarter of 2003 has been filed with Exelon Corporation's interested state commissions whose names and addresses are listed below. Donna Caton, Chief Clerk Illinois Commerce Commission 527 East Capitol Avenue Springfield, Illinois 62706 James J. McNulty, Secretary Pennsylvania Public Utility Commission P.O. Box 3265 Harrisburg, Pennsylvania 17105-3265 11