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. 157 Substitute Original Sheet No. 157

Superseding: Original Sheet No. 157

MARKWEST PIONEER, L.L.C.

FORM OF SERVICE AGREEMENT

RATE SCHEDULE FT-1

Exhibit A

to FT-1 Agreement No. ____

Under Rate Schedule FT-1 Between

MarkWest Pioneer, L.L.C. and ____________________________

Maximum Daily Quantity (“MDQ”): _________________MMBtu/day

Primary Receipt Point(s):_______________________

Receipt Point(s) Pressure (if specified): _________________psig

Primary Delivery Point(s):______________________

Delivery Point(s) Pressure (if specified): _________________psig

Secondary Receipt/Delivery Point(s):__________________________________

Rate and Charges: Shipper shall pay all applicable rates and charges as specified in Rate

Schedule FT-1 of Transporter’s Tariff, including Maximum Recourse Rates, ACA Charge, Fuel and Gas Loss Retention Percentage, and any other applicable surcharges, except to the extent

specifically agreed otherwise, as set forth below:

Discounted Rate:

Negotiated Rate:

Other Conditions: