system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
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EXHIBIT 10.17 TRANSPORTATION SERVICE AGREEMENT UNDER RATE SCHEDULE FTS OR ITS THIS AGREEMENT ("Agreement"), entered into on May 20, 1992, is between Arkansas Western Pipeline Company ("Transporter"), an Arkansas corporation, and Associated Natural Gas Company, a division of Arkansas Western Gas Company, ("Shipper"); WITNESSETH: WHEREAS, Shipper has requested natural gas for that Transporter transport Shipper; and WHEREAS, Transporter has agreed to provide such transportation for Shipper subject to the terms and conditions set forth in this Agreement. NOW, THEREFORE, in consideration of the promises and the mutual covenants herein contained, the parties agree as follows: ARTICLE I DEFINITIONS 1.1 "Maximum Daily Delivery Obligation (MDDO)" means the maximum daily quantity of natural gas, expressed in Dekatherms (Dth), that Transporter is obligated to deliver from time to time at the Point(s) of Delivery specified in Exhibit B to the executed Agreement. 1.2 "Maximum Daily Quantity (MDQ) " means the maximum daily quantity of natural gas, expressed* in Dth's, that Transporter is obligated under the executed Agreement to transport on behalf of' Shipper, which shall be 23,000 Dth. 1.3 "Equivalent Quantity" means the quantity, expressed in Dth's, delivered to Shipper by Transporter at the Point(s) of Delivery. Such quantity is equal to the quantity of gas received from Shipper at the Point(s) of Receipt less Fuel Usage and Applicable Shrinkage. 1.4 "Fuel Usage and Applicable Shrinkage" means the quantity of natural gas retained by Transporter for fuel usage, leakage, blow-down, minor line pack fluctuations, and lost and unaccounted for natural gas. ARTICLE II NATURAL GAS TRANSPORTATION SERVICE 2.1 Beginning on the date on which deliveries of natural gas are commenced hereunder, and thereafter for the remaining term of this Agreement, Shipper agrees to tender gas to Transporter at the Point(s) of Receipt, and Transporter agrees to transport and redeliver and Shipper agrees to accept delivery of the Equivalent Quantities of gas at the Point(s) of Delivery, all &bbsp; in accordance with the terms of this Agreement. 2.2 Transportation service rendered hereunder shall be firm/interruptible service as described in Section 2 of Transporter's X Rate Schedule FTS _____ Rate Schedule ITS. ARTICLE III POINT(S) OF RECEIPT The Point(s) of Receipt at which Transporter shall receive gas for transportation under this Agreement shall be specified in Exhibit A to this Agreement. ARTICLE IV POINT(S) OF DELIVERY The Point(s) of Delivery at which Transporter shall redeliver to Shipper or for the account of Shipper an Equivalent Quantity of gas for transportation under this Agreement shall be specified in Exhibit B to this Agreement. Notwithstanding the MDDO at each Point of Delivery, Shipper shall not nominate a total quantity of natural gas at all Points of Delivery that exceeds the MDQ set forth in this Agreement. ARTICLE V TERM OF AGREEMENT 5.1 Subject to the General Terms and Conditions of Transporter's FERC Gas Tariff and Rate Schedule FTS/ITS, this Agreement shall be effective as of the date of physical completion of and initial deliveries on Transporter's pipeline and shall continue for a primary term of ten years. Thereafter, this Agreement shall be effective month to month, until terminated by Transporter or Shipper upon the following written notice to the other specifying a termination date: sixty (60) days for interruptible transportation under Rate Schedule ITS and 180 days for firm transportation under Rate Schedule FTS. 5.2 Any portions of this Agreement necessary to balance receipts and deliveries under this Agreement as required by the FTS/ITS Rate Schedule, shall survive the other parts of this Agreement until such time as such balancing has been accomplished. ARTICLE VI RATE SCHEDULE AND CHARGES 6.1 Shipper shall pay Transporter for the service hereunder an amount determined in accordance with Transporter's FTS/ITS Rate Schedule, and the General Terms and Conditions of Transporter's FERC Gas Tariff, all as may be revised from time to time. Such FTS/ITS Rate Schedule and General Terms and Conditions are incorporated by reference and made a part hereof. 6.2 Transporter may seek authorization from the FERC and/or other appropriate body to change any rate(s) and/or term(s) set forth herein or in the FTS or ITS Rate Schedule. Nothing herein shall be construed to deny Shipper any rights it may have under the Natural Gas Act or the Natural Gas Policy Act including the right to participate fully in rate proceedings by intervention or otherwise to contest increased rates in whole or in part. ARTICLE VII REDUCTION IN CAPACITY For firm transportation only, if Transporter's capacity is reduced for any reason and a reduction of the quantity of gas being
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Extract the exact clause related to "Effective Date" from the excerpt above.

assistant: Subject to the General Terms and Conditions of Transporter's FERC Gas Tariff and Rate Schedule FTS/ITS, this Agreement shall be effective as of the date of physical completion of and initial deliveries on Transporter's pipeline and shall continue for a primary term of ten years.