MarkWest Pioneer, L.L.C.

Original Volume No. 1

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Effective Date: 12/31/9999, Docket: RP09-367-000, Status: Accepted

Substitute Original Sheet No. 169 Substitute Original Sheet No. 169

Superseding: Original Sheet No. 169

MARKWEST PIONEER, L.L.C.

FORM OF SERVICE AGREEMENT

RATE SCHEDULE IT

THIS AGREEMENT (“Agreement”) is made and entered into as of the ________ day of

_________________, _______, by and between MarkWest Pioneer, L.L.C., referred to as

“Transporter” and _____________________________, referred to as “Shipper.” Transporter and

Shipper are collectively referred to as the “Parties.” This Agreement is made pursuant to

Rate Schedule IT of Transporter’s FERC Gas Tariff, Original Volume No. 1(“Tariff”), on file

with the Federal Energy Commission (“Commission”).

WITNESSETH:

WHEREAS, Transporter owns and operates the Arkoma Connector Pipeline; and

WHEREAS, Shipper desires to purchase transportation service from Transporter under Rate

Schedule IT.

NOW, THEREFORE, in consideration of the premises and mutual covenants and agreements herein

contained, Transporter and Shipper agree as follows:

ARTICLE I

SERVICE TO BE RENDERED

Transporter shall perform and Shipper shall receive transportation service in accordance

with the provisions of the effective Rate Schedule IT and the applicable General Terms and

Conditions (“GT&C”) of Transporter’s Tariff as the same may be amended, or superseded, or

modified from time to time in accordance with applicable laws and regulations. The maximum

obligations of Transporter to transport Gas hereunder for Shipper, and the designation of

the Receipt Point(s) and Delivery Point(s) at which service will be rendered for Shipper,

are specified on Exhibit A of this Agreement as the same may be amended from time to time by

agreement between Shipper and Transporter, or as required by the rules and regulations of

the Commission.

ARTICLE II

TERM OF AGREEMENT

Service under this Agreement shall commence as of _________________________ and shall

continue in full force and effect until _________________________. Shipper and Transporter

agree to avail themselves of the Commission’s pre-granted abandonment authority upon

termination of this Agreement, subject to any right of first refusal Shipper may have under

the Commission’s rules and regulations and Transporter’s Tariff.