Markwest New Mexico, L. L. C.

Second Revised Volume No. 1

Effective Date: 03/01/2009, Docket: RP09-242-000, Status: Effective

First Revised Sheet No. 138 First Revised Sheet No. 138

Superseding: Original Sheet No. 138

(b) Timing of Capacity Releases Exempt from Bidding

For non-biddable releases, the posting of the Shipper Notice

for prearranged deals not subject to bid are due (Central

Time):

(1) Timely Cycle - by 10:30 a.m. on a Business Day

(2) Evening Cycle - by 5:00 p.m. on a Business Day

(3) Intra-day 1 Cycle - by 9:00 a.m. on a Business Day

(4) Intra-day 2 Cycle - by 4:00 p.m. on a Business Day

The capacity release addendum number will be issued within

one hour of the award posting. Nomination is possible

beginning at the next available nomination cycle for the

effective date of the capacity release addendum.

20.4 Bidding Process

(a) In order to submit a valid bid under this capacity release

program, any party, including a PRS, must be on the approved

bidders list. To be on the approved bidders list, a party

must meet the provisions of Section 21 herein and have

executed a capacity release Transportation Agreement with

Transporter in the form as set forth in this Tariff

(Capacity Release Form of Transportation Agreement). A

party shall remain on the approved bidders list until such

party notifies Transporter to the contrary, no longer meets

the credit qualifications in Section 21 herein, or is

suspended from the approved bidders list in the event and

for such time as such party fails to pay part or all of the

amount of any bill for service.

(b) The capacity release timeline in CCT is applicable to all

parties involved in the Capacity Release process; however,

it is only applicable if (1) all information provided by the

parties to the transaction is valid and the acquiring

Shipper has been determined to be creditworthy before the

capacity release bid is tendered; and (2) there are no

special terms or conditions of the release.