Exhibit 10uu Service Package: 3947 Amendment: 1 GAS STORAGE CONTRACT (For Use Under Rate Schedule FS) This Contract is made as of the 1st day of December 1, 1994, by and between TENNESSEE GAS PIPELINE COMPANY, a Delaware corporation herein called "Transporter," and CHATTANOOGA GAS COMPANY, a private corporation of the State of Tennessee, herein called "Shipper." Transporter and Shipper collectively shall be referred to herein as the "Parties." ARTICLE I - SCOPE OF AGREEMENT Following the commencement of service hereunder, in accordance with the terms of Transporter's Rate Schedule FS (Market Area), and of this Agreement, Transporter shall receive for injection for Shipper's account a daily quantity of gas up to Shipper's Maximum Injection Quantity of 5,682 dekatherms (Dth) and Maximum Storage Quantity (MSQ) of 852,286 (Dth) (on a cumulative basis) and on demand shall withdraw from Shipper's storage account and deliver to Shipper a daily quantity of gas up to Shipper's Maximum Daily Withdrawal Quantity (MDWQ) of 7,741 Dth; provided however, that when Shipper's storage balance is equal to or less than 30% of the MSQ but greater than 20% of the MSQ, the Maximum Daily Withdrawal Quantity shall be 6,193 Dth; and provided further, that when Shipper's storage balance is less than or equal to 20% of the MSQ, the Maximum Daily Withdrawal Quantity shall be 6,193 Dth. For demand charge purposes, the MDWQ for balances greater than 30% of the MSQ shall be used. ARTICLE II - SERVICE POINT The point or points at which the gas is to be tendered for delivery by Transporter to Shipper under this Agreement shall be at the storage service point at Transporter's Compressor Station 87-Portland. ARTICLE III - PRICE 1. Shipper agrees to pay Transporter for all natural gas storage service furnished to Shipper hereunder, including compensation for system fuel and losses, at Transporter's legally effective rate or at any effective superseding rate applicable to the type of service specified herein. Transporter's present legally effective rate for said service is contained in Transporter's Tariff as filed with the Federal Energy Regulatory Commission. 2. Shipper agrees to reimburse Transporter for any filing or similar fees, which have not been previously paid by Shipper, which Transporter incurs in rendering service hereunder. Service Package: 3947 Amendment: 1 3. Shipper agrees that Transporter shall have the unilateral right to file with the appropriate regulatory authority and make changes effective in (a) the rates and charges applicable to service pursuant to Transporter's Rate Schedule FS, (b) the rate schedule(s) pursuant to which service hereunder is rendered, or (c) any provision of the General Terms and Conditions applicable to those rate schedules. Transporter agrees that Shipper may protest or contest the aforementioned filings, or may seek authorization from duly constituted regulatory authorities for such adjustment of Transporter's existing FERC Gas Tariff as may be found necessary to assure Transporter just and reasonable rates. ARTICLE IV - INCORPORATION OF RATE SCHEDULE AND TARIFF PROVISIONS This agreement shall be subject to the terms of Transporter's Rate Schedule FS, as filed with the Federal Energy Regulatory Commission, together with the General Terms and Conditions applicable thereto (including any changes in said Rate Schedule or General Terms and Conditions as may from time to time be filed and made effective by Transporter). ARTICLE V - TERM OF AGREEMENT This Agreement shall be effective as of the December 1, 1994 and shall remain in force and effect until November 1, 2000, ("Primary Term") and on a month to month basis thereafter unless terminated by either Party upon at least thirty (30) days prior written notice to the other Party; provided, however, that if the Primary Term is one year or more, then unless Shipper elects upon one year's prior written notice to Transporter to request a lesser extension term, the Agreement shall automatically extend upon the expiration of the Primary Terms for a term of five years; and shall automatically extend for successive five year terms thereafter unless Shipper provides notice described above in advance of the expiration of a succeeding term; provided further, if the FERC or other governmental body having jurisdiction over the service rendered pursuant to this Agreement authorizes abandonment of such service, this Agreement shall terminate on the abandonment date permitted by the FERC or such other governmental body. This Agreement will terminate upon notice from Transporter in the event Shipper fails to pay all of the amount of any bill for service rendered by Transporter hereunder in accordance with the terms and conditions of Article VI of the General Terms and Conditions of Transporters Tariff. ARTICLE VI - NOTICES Except as otherwise provided in the General Terms and Conditions applicable to this Agreement, any notice under this Agreement shall be in writing and mailed to the post office address of the Party intended to receive the same, as follows: Service Package: 3947 Amendment: 1 TRANSPORTER: TENNESSEE GAS PIPELINE COMPANY P. O. Box 2511 Houston, Texas 77252-2511 Attention: Transportation Services SHIPPER: NOTICES: CHATTANOOGA GAS COMPANY 6125 PRESERVATION DRIVE CHATTANOOGA, TN 37416 Attention: Mr. K. A. Royse BILLING: CHATTANOOGA GAS COMPANY C/O ATLANTA GAS LIGHT COMPANY 303 PEACHTREE STREET, N.E ATLANTA, GA 30308-3249 Attention: MS. LAURIE HENRY or to such other address as either Party shall designate by formal written notice to the other. ARTICLE VII - ASSIGNMENT Any company which shall succeed by purchase, merger or consolidation to the properties, substantially as an entirety, of Transporter or of Shipper, as the case may be, shall be entitled to the rights and shall be subject to the obligations of its predecessor in title under this Agreement. Otherwise no assignment of the Agreement or any of the rights or obligations thereunder shall be made by Shipper, except pursuant to the General Terms and Conditions of Transporter's FERC Gas Tariff. It is agreed, however, that the restrictions on assignment contained in this article shall not in any way prevent either Party to the Agreement from pledging or mortgaging its rights thereunder as security for its indebtedness. ARTICLE VIII - MISCELLANEOUS 8.1 The interpretation and performance of this Agreement shall be in accordance with and controlled by the laws of the State of Texas, without regard to doctrines governing choice of law. 8.2 If any provision of this Agreement is declared null and void, or voidable, by court of competent jurisdiction, then that provision will be considered severable at either Party's option; and if the severability option is exercised, the remaining provisions of the Agreement shall remain in full force and effect. Service Package: 3947 Amendment: 1 8.3 Unless otherwise expressly provided in this Agreement or Transporter's Tariff, no modification of or supplement to the terms and provisions stated in this Agreement shall be or become effective, until Shipper has submitted a request for change through the TENN-SPEED 2 System and Shipper has been notified through TENN-SPEED 2 of Transporter's agreement to such change. 8.4 Transporter and Shipper agree that this Agreement, as of the date hereof, shall supersede and cancel the Gas Storage Contract 3947 Amendment 0 dated November 1, 1993 between the Parties hereto. IN WITNESS WHEREOF, the Parties have caused this Agreement to be duly executed by their authorized agents. TENNESSEE GAS PIPELINE COMPANY BY /s/ Lawrence G. Williams LAWRENCE G. WILLIAMS Agent and Attorney-in-Fact CHATTANOOGA GAS COMPANY BY /s/ K A Royse Title President Date 11/18/94 GAS STORAGE SERVICE AGREEMENT EXHIBIT "A" TO FIRM GAS STORAGE SERVICE AGREEMENT DATED DECEMBER 1, 1994 BETWEEN TENNESSEE GAS PIPELINE COMPANY AND CHATTANOOGA GAS COMPANY SERVICE PACKAGE: 3947 AMENDMENT: 1 SERVICE PACKAGE MSQ: 852,286 MAXIMUM DAILY INJECTION QUANTITY: 5,682 MAXIMUM DAILY WITHDRAWAL QUANTITY (MDWQ): 7,741 STORAGE BALANCE STORAGE BALANCE MAXIMUM DAILY WITHDRAWAL FROM DTH TO DTH QUANTITY DTH Ratchet 0 from 255,687 Ratchet 0 to 852,286 Ratchet 0 7,741 Ratchet I from 170,458 Ratchet I to 255,686 Ratchet I 6,193 Ratchet II from 0 Ratchet II to 170,457 Ratchet II 6,193 SERVICE POINT: Compressor Station 87 - Portland INJECTION METER: 060020 WITHDRAWAL METER: 070020 STORAGE STORAGE BALANCE BALANCE MDWQ\ METER METER NAME COUNTY ST ZONE I/W LEG FROM TO MDIQ 070020 TGP-Portland Sumner TN 01 W 100 Ratchet 0 Ratchet 0 Ratchet 0 7,741 Storage Withdrawal from 255,687 to 852,286 Ratchet I Ratchet I Ratchet I 6,193 from 170,458 to 255,686 Ratchet II Ratchet II Ratchet II 6,193 from 0 to 170,457 060020 TGP-Portland Sumner TN 01 I 100 5,682 Storage Injection