Questar Pipeline Company

First Revised Volume No. 1

Effective Date: 03/23/2001, Docket: RP01-233-001, Status: Effective

Substitute Sixth Revised Sheet No. 52 Substitute Sixth Revised Sheet No. 52 : Superseded

Superseding: Substitute Fifth Revised Sheet No. 52

PART 1

GENERAL TERMS AND CONDITIONS

(Continued)

5.3 Qualifications for Bidding. Any party wishing to

become a bidding shipper must prequalify by satisfying the

creditworthiness provisions and Questline access and

signatory requirements of this tariff prior to submitting a

bid for capacity.

5.4 Bidding for Firm Capacity. A shipper desiring to

obtain firm capacity from Questar must submit a bid for the

service via Questline according to the procedures outlined

in this section.

5.5 Bid Period. Questar's bid period for firm

capacity will begin on the day available capacity is posted

on Questline and will be administered as described below

(Central Clock Times).

(a) The initial bid period will be held from

9:00 a.m. on the day available capacity is posted on

Questline until 1:00 p.m. on the eighth business day prior

to the end of the month. Shippers desiring to submit a bid

for service must do so prior to 1:00 p.m. on the eighth

business day prior to the end of the month. The rate, term

and present value of each bid received during the initial

bid period will be shown on Questline as received. However,

the identity of the bidding shipper shall be kept

confidential.

(b) If no competing bids are received for the

same available capacity on Questar's system, the board will

close at 1:00 p.m. If competing bids are received, Questar

will post notification of the competing bids on Questline on

or before 2:00 p.m. Shippers who submitted competing bids

will have an opportunity, beginning at 2:00 p.m., to post an

updated bid that equals or exceeds the highest competing

bid, as calculated according to 5.8. If no bids are

received within the first hour, bidding will close at 3:00

p.m. Otherwise, bidding will continue until there has been

no bidding activity for 30 minutes or until 4:00 p.m.,

whichever occurs first.