Questar Southern Trails Pipeline Company

Original Volume No. 1

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Effective Date: 10/01/2009, Docket: RP09-1028-000, Status: Effective

First Revised Sheet No. 48 First Revised Sheet No. 48

Superseding: Original Sheet No. 48

GENERAL TERMS AND CONDITIONS

(a) The identity of any bidding Shipper shall be kept

confidential. However, the amount of each bid received by Southern Trails

during the bid period will be posted on Questline.

(b) A bidding Shipper may replace a bid for available capacity

with a subsequent higher bid. A bidding Shipper may not submit simultaneous

multiple bids for the same capacity. Any bid that is not replaced by a higher

bid will be binding on the bidding Shipper.

(c) A bidding Shipper shall not bid a reservation charge less

than the minimum reservation charge nor more than the maximum reservation

charge specified by the tariff, unless it is a negotiated rate, nor may the

bid exceed the quantity or the term specified by Southern Trails.

(d) Southern Trails shall not be obligated to accept any bid for

uncommitted capacity at a rate that is less than the rate specified in

Southern Trails' notice.

(e) A Shipper's use of its logon and password on any Questline

transaction screen is deemed to be its consent to be bound by the transaction.

(f) Bids for firm service, submitted through a written request

must be received before the 10th business day prior to the end of the month

during the initial bid period set forth in § 6.4(a). If a bidding Shipper has

not met Southern Trails' credit worthiness prequalification, it must make a

payment of the lesser of $10,000 or the reservation charge for the requested

RDC for the lesser of two months or the term of the requested service. This

reservation charge must be submitted simultaneously with a Shipper's bid and

via wire transfer to:

Wells Fargo Bank N.A.

Salt Lake City, Utah

ABA 121-000-248

Acct. 060-00262-98

If the Shipper is the successful bidder, the payment will be applied to

service provided to Shipper by Southern Trails. If a Shipper is not the

successful bidder, the payment will be refunded to Shipper.