MarkWest Pioneer, L.L.C.

Original Volume No. 1

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

Original Sheet No. 87 Original Sheet No. 87

GENERAL TERMS AND CONDITIONS

(Continued)

b) For biddable releases (one year or more)

The timeline is the same as biddable releases for less than

one year except that the Releasing Shipper shall post the

Shipper Notice on the Website by 12:00 pm CCT four (4)

Business Days before award for long-term release. Open

season ends no later than 1:00 pm Central Clock Time on the

Business Day before timely nominations are due (open season

is three (3) Business Days).

22.4.3. For the capacity release business process timing model in this

section, only the following methodologies are supported by

Transporter and provided to Releasing Shippers as choices from which

they may select and, once chosen, should be used in determining the

awards from the bid(s) submitted. They are: 1) highest rate, 2)

net revenue, and 3) present value. Other choices of bid evaluation

methodology (including other releasing shipper defined evaluation

methodologies) can be accorded similar timeline evaluation treatment

at the discretion of Transporter. However, Transporter is not

required to offer other choices or similar timeline treatment for

other choices, nor is Transporter held to the timeline should the

releasing shipper elect another method of evaluation.

22.4.4. All bids must be expressed in dollars and cents or percents of

maximum rate, whichever is stated in the Shipper Notice, include the

required bid information and must be received and posted

electronically through the Website. Bids shall be posted on the

Website with any contingencies identified and with the bidder’s

identity deleted.

22.4.5. A bidder may submit only one bid at a time in response to a Shipper

Notice. A bidder may withdraw its bid through the Website at any

time prior to the close of the posting period specified in the

Shipper Notice without prejudice to its submitting another bid with

an economic value equal to or greater than the economic value of the

withdrawn bid.