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. 57 Original Sheet No. 57







8.1. General


8.1.1. Transporter provides personnel available to handle nominations seven

(7) days a week, twenty-four (24) hours a day. Whenever Shipper

desires service, Shipper shall furnish to Transporter a separate

nomination for each nominated point under each FT or IT Agreement

with a beginning and end date for flow which can be for any duration

within the term of the applicable FT or IT Agreement; provided,

however, any such nomination shall not be binding to the extent

Shipper submits subsequent nomination(s). All nominations should be

considered original nominations and should be replaced to be

changed. When a nomination for a date range is received, each day

within that range is considered an original nomination. When a

subsequent nomination is received for one or more days within that

range, the previous nomination is superseded by the subsequent

nomination only to the extent of the days specified. The days of

the previous nomination outside the range of the subsequent

nomination are unaffected. Nominations have a prospective effect



8.1.2. For non-Intra-Day Nominations, a rollover option is available such

that a Shipper shall have the ability to nominate for several Days,

Months, or Years, provided the nomination begin and end dates are

within the term of the Shipper’s contract. All nominations should

be based on a daily quantity and all volumes shall be expressed in

MMBtu per day and shall be stated for each point.