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 10.1 TRANSPORTATION SERVICES AGREEMENT THIS TRANSPORTATION SERVICES AGREEMENT (this "Agreement") is dated as of June 11, 2015, by and between Marathon Petroleum Company LP ("Shipper") and Marathon Pipe Line LLC, a Delaware limited liability company ("MPL"), both referred to jointly as the "Parties" and each individually as a "Party". WITNESSETH WHEREAS, MPL owns and operates a common carrier pipeline system originating in Ohio, as further depicted on Exhibit A, that will provide both interstate and intrastate common carrier transportation services; and WHEREAS, MPL also operates the assets of Ohio River Pipe Line LLC, a Delaware limited liability company ("ORPL") and an affiliate of MPL. ORPL is the owner of a common carrier pipeline system originating in Ohio, as further depicted on Exhibit A, that provides common carrier transportation services; and WHEREAS, MPL and ORPL desire to combine their systems (together referred to as the "Pipeline") under a Joint Agreement (as defined below) in order to undertake certain improvements to provide expanded capacity on portions of the Pipeline and install additional infrastructure to other portions of the Pipeline pursuant to a multi-phase capital project (the "Project"); and WHEREAS, MPL and ORPL conducted a joint binding open season with the understanding that MPL will file a joint tariff, commencing approximately 30 days prior to the in-service date of the Project, seeking binding commitments on the Pipeline; and WHEREAS, Shipper responded to the binding open season and desires to commit to transport a specified volume of Product (as defined below) on the Pipeline over a multi-year period to destinations as provided in Exhibit C, subject to and upon the terms and conditions of this Agreement; and WHEREAS, in exchange for the commitment by Shipper to transport a specific volume of Product on the Pipeline over a multi-year period, MPL will charge the rates as provided for in Exhibit B; and NOW THEREFORE, in consideration of the premises and mutual covenants set forth hereinafter, MPL and Shipper agree as follows: 1. Definitions "Affiliate" means, with respect to any Person, any other Person that directly or indirectly through one or more intermediaries' controls, is controlled by or is under common control with, the Person in question. "Applicable Law" means any applicable statute, law, regulation, ordinance, rule, determination, judgment, rule of law, order, decree, permit, approval, concession, grant, franchise, license, requirement, or any similar form of decision of, or any provision or condition of any permit, license or other operating authorization issued by any Governmental Authority having or asserting jurisdiction over the matter or matters in question, whether now or hereafter in effect. "Barrel" means forty-two (42) U.S. gallons measured at sixty (60) degrees Fahrenheit. 1 "Change in Law" means the adoption, implementation or amendment of any Applicable Law by any Governmental Authority after the Effective Date that causes MPL to incur additional expenses in order to operate the Pipeline in compliance with such Applicable Law. "Change in Law Event" means the occurrence of a Change in Law that necessitates the expenditure of Compliance Costs. "Compliance Costs" means the expenses in excess of $1,000,000 for a Change in Law Event, related specifically to the Department of Transportation, Pipeline and Hazardous Materials Safety Administration or Homeland Security, incurred by MPL to comply with a Change of Law, irrespective of whether such expenses are to be incurred as a onetime expenditure or periodically for an extended period. The definition for "Compliance Costs" shall in no way revise or modify the definitions of Change in Law or Change in Law Event. "Contract Year" means the period beginning on the project in-service date in conjunction with the FERC tariff filing, and ending 365 days later (366 days later for any such period that includes a February 29.) "Confidential Information" means any proprietary or confidential information that is competitively sensitive material or otherwise of value to a Party or its Affiliates and not generally known to the public, including trade secrets, scientific or technical information, design, invention, process, procedure, formula, improvements, product planning information, marketing strategies, financial information, information regarding operations, consumer and/or customer relationships, consumer and/or customer identities and profiles, sales estimates, business plans, and internal performance results relating to the past, present or future business activities of a Party or its Affiliates and the consumers, customers, clients and suppliers of any of the foregoing. Confidential Information includes such information as may be contained in or embodied by documents, substances, engineering and laboratory notebooks, reports, data, specifications, computer source code and object code, flow charts, databases, drawings, pilot plants
"""

Extract the exact clause related to "Parties" from the excerpt above.

assistant: both referred to jointly as the "Parties" and each individually as a "Party".