CNG Contract No. 300115 EXHIBIT 10.46 SERVICE AGREEMENT APPLICABLE TO THE STORAGE OF NATURAL GAS UNDER RATE SCHEDULE GSS (North Summit) AGREEMENT made effective as of November 1, 1998, by and between CNG TRANSMISSION CORPORATION, a Delaware corporation, hereinafter called "Pipeline," and COLONIAL GAS COMPANY, a Massachusetts corporation, hereinafter called "Customer." WHEREAS, in conjunction with Article VII of the August 31, 1998 Stipulation and Agreement in Pipeline's Docket Nos. RP97-406-000, et al., Pipeline and Customer have agreed to establish an agreement under Pipeline's Rate Schedule GSS, which will ultimately supplant the "Service Agreement Applicable To the Storage of Natural Gas Under Rate Schedule GSS-II (Part 284 -- North Summit)" between Pipeline and Customer dated September 1, 1997, commencing effective as of November 1, 1998. WITNESSETH: That in consideration of the mutual covenants herein contained, the parties hereto agree that Pipeline will store natural gas for Customer during the term, at the rates and on the terms and conditions hereinafter provided: Article I. Quantities Beginning as of November 1, 1998 and thereafter for the remaining term of this agreement, Customer agrees to deliver to Pipeline and Pipeline agrees to receive for storage in Pipeline's underground storage properties, and Pipeline agrees to inject or cause to be injected into storage for Customer's account, store, withdraw from storage, and deliver to Customer and Customer agrees to receive, quantities of natural gas as set forth on Exhibit A. attached hereto. Article II. Rate A. For storage service rendered by Pipeline to Customer hereunder, Customer shall pay Pipeline the maximum rates and charges provided under Rate Schedule GSS contained in Pipeline's effective FERC Gas Tariff or any effective superseding rate schedule. B. Pipeline shall have the right to propose, file, and make effective with the FERC or any other body having jurisdiction, revisions to any applicable rate schedule, or to propose, file, and make effective superseding rate schedules for the purpose of changing the rate, charges, and other provisions thereof effective as to Customer; provided, however, that (i) Section 2 of Rate Schedule GSS "Applicability and Character of Service," (ii) term, (iii) quantities, and (iv) points of receipt and points of delivery shall not be subject to unilateral change under this Article. Said rate schedule or superseding rate schedule and any revisions thereof which shall be filed and made effective shall apply to and become a part of this Service Agreement. The - 1 - CNG Contract No. 300115 filing of such changes and revisions to applicable rate schedule shall be without prejudice to the right of Customer to contest or oppose such filing and its effectiveness. C. The Storage Demand Charge and the Storage Capacity Charge provided in the aforesaid rate schedule shall commence on November 1, 1998. Article III. Term of Agreement Subject to all the terms and conditions herein, this Agreement shall be effective as of November 1, 1998, and shall continue in effect for a primary term through and including March 31, 2012, and for subsequent annual terms of April 1 through March 31 thereafter, until either party terminates this Agreement by giving written notice to the other at least twenty-four months prior to the start of an annual term. Article IV. Points of Receipt and Delivery The Points of Receipt for Customer's tender of storage injection quantities, and the Point(s) of Delivery for withdrawals from storage shall be specified on Exhibit A, attached hereto. Article V. Incorporation By Reference of Tariff Provisions To the extent not inconsistent with the terms and conditions of this Agreement, the following provisions of Seller's effective FERC Gas Tariff, and any revisions thereof that may be made effective hereafter are hereby made applicable to and a part hereof by reference: 1. All of the provisions of Rate Schedule GSS, or any effective superseding rate schedule or otherwise applicable rate schedule; and 2. All of the provisions of the General Terms and Conditions, as they may be revised or superseded from time to time. Article VI. Miscellaneous A. No change, modification or alteration of this Agreement shall be or become effective until executed in writing by the parties hereto; provided, however, that the parties do not intend that this Article VI.A. requires a further written agreement either prior to the making of any request or filing permitted under Article II hereof or prior to the effectiveness of such request or filing after Commission approval, provided further, however, that nothing in this Agreement shall be deemed to prejudice any position the parties may take as to whether the request, filing or revision permitted under Article II must be made under Section 7 or Section 4 of the Natural Gas Act. B. Any notice, request or demand provided for in this Agreement, or any notice which either party may desire to give the other, shall be in writing and sent to the following addresses: - 2 - CNG Contract No. 300115 Pipeline: CNG Transmission Corporation 445 West Main Street Clarksburg, West Virginia 26301 Attention: Vice President, Wholesale Marketing Fax: (304) 623-8323 Customer: Colonial Gas Company 40 Market Street Lowell, Massachusetts 01852 Attention: Senior Vice President, Gas Supply Fax: (978) 459-2314 or at such other address as either party shall designate by formal written notice. C. No presumption shall operate in favor of or against either party hereto as a result of any responsibility either party may have had for drafting this Agreement. IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be signed by their duly authorized officials as of the day and year first above written. CNG TRANSMISSION CORPORATION (Pipeline) By: /s/ George B. Carter ----------------------------- Its: Vice President COLONIAL GAS COMPANY (Customer) By: /s/ John P. Harrington ----------------------------- Its: Senior V.P. - Gas Supply ----------------------------- (Title) - 3 - EXHIBIT A (Contract No. 300115) To The GSS (North Summit) Storage Service Agreement Dated November 1, 1998 Between CNG Transmission Corporation and Colonial Gas Company A. Quantities The quantities of natural gas storage service that Customer may utilize under this Service Agreement, as well as Customer's applicable Billing Determinants, are as follows: 1. For the period November 1, 1998 through and including October 31, 1999: a. A Storage Demand of 21 Dekatherms (Dt) per Day; and b. A Storage Capacity of 2,080 Dt. 2. For the period November 1,1999 through and including October 31, 2000: a. A Storage Demand of 47 Dt per Day; and b. A Storage Capacity of 4,680 Dt. 3. For the period November 1, 2000 through and including October 31, 2001: a. A Storage Demand of 67 Dt per Day; and b. A Storage Capacity of 6,760 Dt. 4. For the period November 1, 2001 through and including October 31, 2002: a. A Storage Demand of 87 Dt per Day; and b. A Storage Capacity of 8,840 Dt. 5. For the period November 1, 2002 through and including the remaining term of this Agreement: a. A Storage Demand of 104 Dt per Day; and b. A Storage Capacity of 10,400 Dt. B. Points of Receipt and Delivery 1. The Point of Receipt for Customer's tender of storage injection quantities, and the maximum quantities and character of service for such point shall be as set forth below. Each of the parties will use due care and diligence to assure that uniform pressures will be maintained at the Receipt Point as reasonably may be required to render service Exhibit A (Contract No. 300115) November 1, 1998 GSS (North Summit) Agreement Between CNG Transmission Corporation and Colonial Gas Company Page 2 of 2 hereunder, but Pipeline will not be required to accept gas at less than the minimum pressures specified herein. a. Up to Customer's maximum daily entitlement for injection as determined under Rate Schedule GSS, at an existing point of interconnection between the facilities of Pipeline and Texas Eastern Transmission Corporation (Texas Eastern) located in Fayette County, Pennsylvania and known as the North Summit Interconnection, at a pressure of not less than seven hundred (700) pounds per square inch gauge ("psig"). 2. The Points of Delivery for withdrawals from storage, and the maximum quantities and character of service for each point, shall be as set forth below. Each of the parties will use due care and diligence to assure that uniform pressures will be maintained at the Delivery Points as reasonably may be required to render service hereunder, but Pipeline will not be required to deliver gas at greater than the maximum pressures specified herein. a. Up to Customer's maximum daily entitlement for withdrawal as determined under Rate Schedule GSS, at an existing point of interconnection between the facilities of Pipeline and Texas Eastern located in Fayette County, Pennsylvania, known as the North Summit Interconnection, at a pressure of not more than one thousand (1,000) psig. b. On an interruptible basis if operating conditions permit, up to Customer's maximum daily entitlement for withdrawal as determined under Rate Schedule GSS, at an existing point of interconnection between the facilities of Pipeline and Texas Eastern located in Greene County, Pennsylvania and known as the Crayne Interconnection, at a pressure of not more than eight hundred sixty-five (865) psig. c. On an interruptible basis if operating conditions permit, up to Customer's maximum daily entitlement for withdrawal as determined under Rate Schedule GSS, at an existing point of interconnection between the facilities of Pipeline and Texas Eastern located in Westmoreland County, Pennsylvania and known as the Oakford Interconnection, at a pressure of not less than eight hundred fifty (850) psig.