Questar Pipeline Company

First Revised Volume No. 1

Effective Date: 07/07/2002, Docket: RP02-357-000, Status: Effective

Original Sheet No. 179D Original Sheet No. 179D : Effective

PART 4

GENERAL TERMS AND CONDITIONS

(Continued)

6. PRIORITY AND CURTAILMENT OF SERVICE

6.1 Priority. Shippers receiving service utilizing

the PAL1 compressor shall be entitled to service using the

PAL1 compressor in the following order:

(a) PAL1 service.

(b) FSS service.

(d) Authorized overrun service.

Provided, however, Questar will not schedule PAL1

service if it will adversely impact the rights of FSS

shippers.

6.2 Curtailment.

(a) Questar may curtail a shipper's PAL1 service

in order to protect Questar's use of any portion of its

reserved capacity, as prescribed in Section 9.1 of the

General Terms and Conditions of Part 3 of this tariff, in

order to maintain the safe and reliable operation of its

transmission system.

(b) Questar may curtail a shipper's PAL1 service

to protect the rights of FSS customers, to protect system

operational integrity or events of force majeure.

Curtailments of PAL1 parks or loans shall be implemented pro

rata. If Questar curtails shippers' service, shipper shall

have the option to either: (1) cancel the transaction if the

park or loan has not yet begun, (2) cashout previously

parked or loaned quantities at the Gas Daily price for

Northwest, Wyoming Pool, on the day the curtailment or force

majeure event occurs or (3) reschedule the quantities on the

first day that capacity is available to receive or deliver

the curtailed gas. If a park or loan transaction is

shortened by a curtailment, Questar will refund the

applicable daily charges as provided in 4.1(d) of Rate

Schedule PAL1 of this part.

advance notice of any curtailment as is practicable under

the circumstances. The notice shall state the reduced

quantities of gas that Questar estimates it will be able to

inject or withdraw for shipper and the estimated duration of

the service limitation.