MarkWest Pioneer, L.L.C.

Original Volume No. 1

 Contents / Previous / Next / Main Tariff Index



Effective Date: 04/01/2009, Docket: RP09-321-000, Status: Effective

Original Sheet No. 106 Original Sheet No. 106






Transporter may buy and/or sell Gas to the extent necessary: (i) to provide or

maintain system pressure and line pack, (ii) to balance fuel and Gas loss

quantities, and (iii) to perform other operational functions of Transporter in

connection with transportation services.




Should Transporter at any time determine that it can make available total

transmission capacity in excess of its aggregate firm daily delivery obligations,

nothing in this Tariff shall prohibit Transporter and Shipper from mutually agreeing

upon an increase in Shipper’s MDQ so long as Transporter offers any such additional

capacity to all Shippers in accordance with Section 6 of the GT&C providing Shipper

executes an FT Agreement setting forth the new volumes and that the capacity and

contractual quantity so released can be made available to and offset by increases in

Transporter’s delivery obligation to other Shippers; or by mutual agreement.




The operation of the provisions of this Tariff shall be subject to any and all

government statues and all lawful orders, rules, and regulations affecting the

receipt, transportation or delivery of Gas hereunder or the equipment required in

connection with such receipt, transportation or delivery. It is understood that

performance under any FT or IT Agreement shall be subject to all valid laws, orders,

rules and regulations of duly constituted governmental authorities having

jurisdiction or control of the matter related hereto. Should either of the parties,

by force of any such law, order, rule or regulation, at any time during the term of

the agreement be ordered or required to do any act inconsistent with the provisions

thereof, then for that period only during which the requirements of such law, order,

rule or regulation are applicable, the transportation agreement shall be deemed

modified to conform with the requirement of such law, order, rule or regulation;

provided, however, nothing herein shall alter, modify or otherwise affect the

respective rights of the parties to cancel or terminate the agreement under its

terms and conditions.