MarkWest Pioneer, L.L.C.

Original Volume No. 1

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

Original Sheet No. 49 Original Sheet No. 49

GENERAL TERMS AND CONDITIONS

(Continued)

6.2.4. The name(s), telephone number(s) and fax number(s) of Shipper

employees responsible for nominations and/or dispatching.

6.2.5. The name(s), telephone number(s) and fax number(s) of Shipper

employees responsible for payment of invoices.

6.2.6. The name(s), telephone number(s) and fax numbers(s) of Shipper

employees responsible for other matters.

6.2.7. Whether the Shipper is affiliated with Transporter.

6.2.8. Type of service requested.

6.2.9. Requested MDQ, stated in MMBtu per day.

6.2.10. Estimated total quantities of Gas to be received and transported

over the delivery period.

6.2.11. Requested date of commencement of service.

6.2.12. Requested term of service.

6.2.13. Requested Receipt Point and Delivery Point(s), together with the

name of the entity delivering Gas to Transporter and the name of the

entity to receive Gas from Transporter.

6.2.14. If applicable, a copy of an executed agreement between Shipper and

third party authorizing Shipper to act on behalf of the third party

to secure the service requested. If Shipper requests service on

behalf of a third party, Shipper shall provide the name, address,

telephone number and primary business of the third party.