U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM U-9C-3 QUARTERLY REPORT PURSUANT TO RULE 58 OF THE PUBLIC UTILITY HOLDING COMPANY ACT OF 1935 For the quarterly period ended September 30, 2005 CENTERPOINT ENERGY, INC. (NAME OF REGISTERED HOLDING COMPANY) 1111 Louisiana, Houston, Texas 77002 (Address of Principal Executives Offices) Inquiries concerning this Form U-9C-3 may be directed to either: Walter L. Fitzgerald Vice President and Controller CenterPoint Energy, Inc. 1111 Louisiana Houston, Texas 77002 (713) 207-7425 OR Rufus Scott Vice President & Deputy General Counsel CenterPoint Energy, Inc. 1111 Louisiana Houston, Texas 77002 (713) 207-7451 -1-

CENTERPOINT ENERGY, INC. FORM U-9C-3 FOR THE QUARTER ENDED SEPTEMBER 30, 2005 Table of Contents

Page ---- Item 1 Organization Chart....................................................................... 3 Item 2 Issuances and Renewals of Securities and Capital Contributions........................... 6 Item 3 Associated Transactions.................................................................. 7 Item 4 Summary of Aggregate Investment.......................................................... 11 Item 5 Other Investments........................................................................ 12 Item 6 Financial Statements and Exhibits........................................................ 13 Signature................................................................................ 14
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ITEM 1. ORGANIZATION CHART

PERCENTAGE ENERGY OR OF VOTING GAS RELATED DATE OF STATE OF SECURITIES NAME OF REPORTING COMPANY COMPANY ORGANIZATION ORGANIZATION HELD NATURE OF BUSINESS - ------------------------------------- ------------------------------- -------------- ------------- -------------------------- CenterPoint Energy, Inc. Holding Company Utility Holding Company, LLC(a) Intermediate Holding Company Subsidiaries of Utility Holding Company, LLC: CenterPoint Energy Power Systems, Energy Related 04/27/2000 Del 100% Formed to develop and Inc. commercialize fuel cell technology. CenterPoint Energy Products, Inc. Energy Related 01/27/1993 Del 100% Company formed to commercialize its intellectual property relating to its energy business. Utility Rail Services, Inc. * Energy Related 06/10/1993 Del 100% Formerly provided rail car maintenance services. Company has no current activity/operations. CenterPoint Energy Resources Corp. Subsidiaries of CenterPoint Energy Resources Corp.: ALG Gas Supply Company* Energy Related 01/11/1982 Del 100% Formerly engaged in gas marketing. Arkla Industries, Inc. Energy Related 09/04/1957 Del 100% Previously manufactured gas appliances. Arkla Products Company* Energy Related 12/11/1987 Del 100% Formerly manufactured gas grills. CenterPoint Energy Alternative Energy Related 02/25/1997 Tex 100% Formed to establish Fuels, Inc. commercial retail outlets to promote, market, distribute, and sell compressed natural gas. CenterPoint Energy Field Services, Gas Related 10/12/1993 Del 100% A natural gas gathering Inc. company. CenterPoint Energy Gas Processing, Gas Related 10/25/1995 Del 100% Owns an interest in a Inc. natural gas processing plant.
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PERCENTAGE ENERGY OR OF VOTING GAS RELATED DATE OF STATE OF SECURITIES NAME OF REPORTING COMPANY COMPANY ORGANIZATION ORGANIZATION HELD NATURE OF BUSINESS - ------------------------------------- ------------------------------- -------------- ------------- -------------------------- Waskom Gas Processing Company Gas Related 1995 Tex 50% General partnership between CenterPoint Energy Gas Processing and Prism Gas Systems, Inc. and owns a gas processing plant in Harrison County, Texas. CenterPoint Energy Gas Transmission Gas Related 01/31/1992 Del 100% Interstate gas pipeline Company system. CenterPoint Energy Hub Services, Gas Related 02/16/1994 Del 100% Formerly provided Inc.* agency services in gas transportation. CenterPoint Energy Illinois Gas Gas Related 06/30/1998 Del 100% Owns and operates a Transmission Company short intrastate gas transmission company in the state of Illinois. CenterPoint Energy Intrastate Gas Related 06/26/1998 Del 100% Holding Company for Pine Holdings, LLC Pipeline LLC. Pine Pipeline Acquisition Gas Related 05/22/1998 Del 81.4% Owns a small intrastate Company, LLC pipeline in Northern Louisiana. CenterPoint Energy Services, Inc. Energy Related 10/18/1995 Del 100% Engaged in natural gas marketing. CenterPoint Energy Mississippi River Gas Related 09/03/1958 Del 100% Interstate gas pipeline Transmission Corporation system. CenterPoint Energy MRT Services Energy Related 08/28/1995 Del 100% Its sole purpose is the Company ownership of a canal, which carries inlet water to generating plants in California. The Company is to be divested. CenterPoint Energy Pipeline Gas Related 11/13/1997 Del 100% Offers engineering, Services, Inc. project management, construction management, pipeline operation and other turn-key construction and project management solutions for companies. CenterPoint Energy OQ, LLC Energy Related 03/23/2000 Del 100% Owns 50% partnership interest in OQ Partners.
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PERCENTAGE ENERGY OR GAS OF VOTING RELATED DATE OF STATE OF SECURITIES NAME OF REPORTING COMPANY COMPANY ORGANIZATION ORGANIZATION HELD NATURE OF BUSINESS - -------------------------------------- --------------- --------------- --------------- ------------- ------------------------- OQ Partners Energy Related 03/22/2000 Tex 50% Developing & marketing training modules for operator qualification rule compliance and record keeping. Entex Gas Marketing Company* Energy Related 4/23/1987 Tex 100% Formerly engaged in natural gas marketing. Entex NGV, Inc.* Energy 6/03/1993 Del 100% Formed to market Related compressed natural gas and natural gas vehicles. Entex Oil & Gas Company* Gas Related 9/05/1977 Tex 100% Formerly pursued oil and gas exploration and production. CenterPoint Energy Intrastate Gas Related 11/19/1977 Tex 100% Intrastate gas Pipelines, Inc. transmission in Texas and Louisiana. Minnesota Intrastate Pipeline Company Gas Related 10/06/1993 Del 100% Gas transmission. Owns pipeline in Minnesota. National Furnace Company Energy Related 6/14/1976 Tex 100% Formerly sold gas furnaces. Noram Utility Services, Inc. * Energy Related 08/28/1995 Del 100% Previously provided line locating and related services. CenterPoint Energy Offshore Gas Related 04/15/2005 Del 100% Operations and Management Services, LLC maintenance management services for natural gas operations.
(a) Utility Holding Company, LLC is a wholly-owned, registered public utility holding company subsidiary of CenterPoint Energy, Inc. CenterPoint Energy Power Systems, Inc., CenterPoint Energy Products, Inc., Utility Rail Services, Inc. and CenterPoint Energy Resources Corp. are direct, wholly owned subsidiaries of Utility Holding Company, LLC. Other companies are direct or indirect subsidiaries of CenterPoint Energy Resources Corp, as indicated. *- operationally inactive entity LLC: Limited Liability Corporation -5-

ITEM 2.-ISSUANCES AND RENEWALS OF SECURITIES AND CAPITAL CONTRIBUTIONS ISSUANCES AND RENEWALS OF SECURITIES (in thousands of dollars):

Person to Consideration Company Type of Principal whom Collateral received issuing security amount of Issue or Cost of security given with for each security issued security renewal capital was issued security security - -------------- ------------ ----------- ------------ ------------ ------------ ------------ ------------ None
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ITEM 3.-ASSOCIATED TRANSACTIONS Part I.-Transactions performed by reporting companies on behalf of associate companies (in thousands of dollars).

Reporting Associate Company Company Types of Cost Rendering Receiving Services Direct Costs Indirect of Total Amount Services Services Rendered Charged Costs Charged Capital Billed - ------------------ ------------------ -------------- -------------- --------------- ------------ ---------------- Minnesota CenterPoint Gas sales & $ 402 $ - $ - $ 402 Intrastate Energy Minnesota purchases Pipeline Company Gas CenterPoint CenterPoint Gas sales, 1,324 - - 1,324 Energy Energy Gas transportation Mississippi Transmission & storage River Transmission CenterPoint CenterPoint Gas sales & 1,380 - - 1,380 Energy Energy Services, storage Mississippi Inc. River Transmission CenterPoint CenterPoint Ancillary 143 - - 143 Energy Gas Energy Services Transmission Mississippi River Transmission CenterPoint CenterPoint Product 1,244 - - 1,244 Energy Gas Energy Field Extraction Transmission Services CenterPoint CenterPoint Gas 24,399 - - 24,399 Energy Gas Energy Arkla transportation Transmission & storage CenterPoint CenterPoint Gas sales, 3,378 - - 3,378 Energy Gas Energy Services, transportation Transmission Inc. & storage CenterPoint CenterPoint Other 4 - - 4 Energy Pipeline Energy Resources Operations Services Corp CenterPoint CenterPoint Operation, 10,590 - - 10,590 Energy Pipeline Energy maintenance, Services Mississippi construction River & Transmission engineering services CenterPoint CenterPoint Operation, 44,780 - - 44,780 Energy Pipeline Energy Gas maintenance, Services Transmission construction & engineering services CenterPoint CenterPoint Operation, 858 - - 858 Energy Pipeline Energy Field maintenance, Services Services construction & engineering services CenterPoint CenterPoint Engineering 18 - - 18 Energy Pipeline Energy Arkla and project Services mgmt services CenterPoint CenterPoint Engineering 149 - - 149 Energy Pipeline Energy Minnesota and project Services Gas mgmt services
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Reporting Associate Company Company Types of Cost Rendering Receiving Services Direct Costs Indirect of Total Amount Services Services Rendered Charged Costs Charged Capital Billed - ------------------ ------------------ -------------- -------------- --------------- ------------ ---------------- CenterPoint CenterPoint Engineering 10 - - 10 Energy Pipeline Energy Entex and project Services mgmt services other operations CenterPoint CenterPoint Operation, 95 - - 95 Energy Pipeline Energy Illinois maintenance, Services Gas Transmission construction & engineering services CenterPoint CenterPoint Ancillary 141 - - 141 Energy Field Energy services Services Mississippi River Transmission CenterPoint CenterPoint Gas 538 - - 538 Energy Field Energy Gas transportation & Services Transmission ancillary services CenterPoint CenterPoint Products 509 - - 509 Energy Field Energy Gas extraction Services Processing CenterPoint CenterPoint Gas sales & 5,230 - - 5,230 Energy Field Energy Services, transportation Services Inc. CenterPoint CenterPoint Ancillary 3 - - 3 Energy Field Energy Entex services Services CenterPoint CenterPoint Products 307 - - 307 Energy Gas Energy Field extraction Processing Services CenterPoint CenterPoint Gas sales & 15,080 - - 15,080 Energy Services, Energy Arkla gas resale Inc. CenterPoint CenterPoint Gas resale 37,838 - - 37,838 Energy Services, Energy Inc. Intrastate Pipeline CenterPoint CenterPoint Gas sales & 23,839 - - 23,839 Energy Services, Energy Entex gas resale Inc. CenterPoint LA Trans Div of Gas resale 12,325 - - 12,325 Energy Services, Entex Inc. CenterPoint CenterPoint Gas resale & 96 - - 96 Energy Energy Entex gas Intrastate transportation Pipeline CenterPoint CenterPoint Ancillary 48 - - 48 Energy Energy Entex services Alternative Fuels
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Part II.-Transactions performed by associate companies on behalf of reporting companies (in thousands of dollars).

Types of Indirect Cost Total Associate Company Reporting Company Services Direct Costs Costs of Amount Rendering Services Receiving Services Rendered Charged Charged Capital Billed - ------------------- --------------------- -------------- -------------- --------------- ------------- ------------ CenterPoint CenterPoint Energy (1) $ 2,743 $ 2,165 $ 202 $ 5,110 Energy Service Gas Transmission Co. Company, LLC CenterPoint CenterPoint Energy (1) 782 668 - 1,450 Energy Service Services, Inc. Company, LLC CenterPoint CenterPoint Energy (1) 235 618 - 853 Energy Service Field Services, Inc. Company, LLC CenterPoint CenterPoint Energy (1) 91 1 - 92 Energy Service Mississippi River Company, LLC Transportation CenterPoint CenterPoint Energy (1) 177 1 - 178 Energy Service Pipeline Services, Inc. Company, LLC CenterPoint CenterPoint Energy (1) 58 - - 58 Energy Service Products, Inc. Company, LLC CenterPoint CenterPoint Energy (1) 5 - - 5 Energy Service Alternative Fuels, Inc. Company, LLC CenterPoint CenterPoint Energy (1) 1 - - 1 Energy Service Offshore Management Company, LLC Services, LLC
(1) Services provided include Information Technology, Shared Services, Legal, Finance, Human Resources, and Corporate Communications -9-

Types of Indirect Cost Total Associate Company Reporting Company Services Direct Costs Costs of Amount Rendering Services Receiving Services Rendered Charged Charged Capital Billed - ------------------- --------------------- -------------- --------------- --------------- ------------- ----------- CenterPoint CenterPoint Energy Broadband over 118 - - 118 Energy Houston Products, Inc. power line Electric services CenterPoint CenterPoint Energy SCADA Support 1 - - 1 Energy Houston Products, Inc. Electric CenterPoint CenterPoint Energy Telecom services 1 - - 1 Energy Houston Products, Inc. Electric CenterPoint CenterPoint Energy Gas sales and 1 - - 1 Energy Minnesota Services, Inc. balancing Gas
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ITEM 4.-SUMMARY OF AGGREGATE INVESTMENT (IN THOUSANDS)

Investments in energy-related companies: Total consolidated $ 9,770,093 Line 1 capitalization as of September 30, 2005 Total capitalization multiplied by 15% (Line 1 multiplied by 0.15) 1,465,514 Line 2 Greater of $50 million or line 2 $ 1,465,514 Line 3 Total current aggregate investment: (categorized by major line of energy-related business) (Category 3) $ (3,546) Natural gas vehicles (Category 4) (12,384) Appliance Sales (Category 5) (17,798) Energy Marketing (Category 7) 1,672 Services ------------- Total current aggregate Investment (32,056) Line 4 ------------- Difference between the greater of $50 million or 15% of capitalization and the total aggregate investment of the registered holding company system $ 1,433,458 Line 5 (line 3 less line 4) ------------- Investments in gas-related companies: Total current aggregate investment: (categorized by major line of energy-related business) Gas related business category (1) $ 1,515,956 (Category 1) Transportation or storage of natural gas Gas related business category (2) 31,870 (Category 2) Supply of natural gas ------------- Total current aggregate investment $ 1,547,826 --------------
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ITEM 5.-OTHER INVESTMENTS (IN THOUSANDS)

Other Reason for Major Line of Investment in Other Investment Difference in Energy-Related Business Last in This Other (a) U-9C-3 Report U-9C-3 Report Investment - ------------------------- ---------------- ------------------ ---------------- None
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ITEM 6.-FINANCIAL STATEMENTS AND EXHIBITS A. Current Period Financial Statements: (filed with a request for confidential treatment) CenterPoint Energy Power Systems, Inc. Balance Sheet as of September 30, 2005 CenterPoint Energy Power Systems, Inc. Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Products, Inc. Balance Sheet as of September 30, 2005 CenterPoint Energy Products, Inc. Statement of Operations for the three and nine months ended September 30, 2005 Arkla Industries, Inc. Balance Sheet as of September 30, 2005 Arkla Industries, Inc. Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Alternative Fuels, Inc. Balance Sheet as of September 30, 2005 CenterPoint Energy Alternative Fuels, Inc. Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Field Services, Inc. Balance Sheet as of September 30, 2005 CenterPoint Energy Field Services, Inc. Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Gas Processing, Inc. Balance Sheet as of September 30, 2005 CenterPoint Energy Gas Processing, Inc. Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Gas Transmission Co. Balance Sheet as of September 30, 2005 CenterPoint Energy Gas Transmission Co. Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Illinois Gas Transmission Co. Balance Sheet as of September 30, 2005 CenterPoint Energy Illinois Gas Transmission Co. Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Intrastate Holdings, LLC Balance Sheet as of September 30, 2005 CenterPoint Energy Intrastate Holdings, LLC Statement of Operations for the three and nine months ended September 30, 2005 Pine Pipeline Acquisition Company, LLC Balance Sheet as of September 30, 2005 Pine Pipeline Acquisition Company, LLC Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Services, Inc. Balance Sheet as of September 30, 2005 CenterPoint Energy Services, Inc. Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Mississippi River Transmission Corp. Balance Sheet as of September 30, 2005 CenterPoint Energy Mississippi River Transmission Corp. Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy MRT Services Company Balance Sheet as of September 30, 2005 CenterPoint Energy MRT Services Company Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Pipeline Services, Inc. Balance Sheet as of September 30, 2005 CenterPoint Energy Pipeline Services, Inc. Statement of Operations for the three and nine months ended September 30, 2005 -13-

CenterPoint Energy OQ, LLC Balance Sheet as of September 30, 2005 CenterPoint Energy OQ, LLC Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Intrastate Pipelines, Inc. Balance Sheet as of September 30, 2005 CenterPoint Energy Intrastate Pipelines, Inc. Statement of Operations for the three and nine months ended September 30, 2005 Minnesota Intrastate Pipeline Company Balance Sheet as of September 30, 2005 Minnesota Intrastate Pipeline Company Statement of Operations for the three and nine months ended September 30, 2005 National Furnace Company Balance Sheet as of September 30, 2005 National Furnace Company Statement of Operations for the three and nine months ended September 30, 2005 CenterPoint Energy Offshore Management Services, LLC Balance Sheet as of September 30, 2005 CenterPoint Energy Offshore Management Services, LLC Statement of Operations for the three and nine months ended September 30, 2005 B. Exhibits: None. SIGNATURE Pursuant to the requirements of the Public Utility Holding Company Act of 1935, as amended, the Applicants have duly caused this Application/Declaration to be signed on their behalf by the undersigned thereunto duly authorized. Date: November 23, 2005 CENTERPOINT ENERGY, INC. and its Subsidiaries By: /s/ WALTER L. FITZGERALD ---------------------------------- Walter L. Fitzgerald Vice President and Controller CenterPoint Energy, Inc. -14-