Questar Pipeline Company

First Revised Volume No. 1

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Effective Date: 03/23/2001, Docket: RP01-233-000, Status: Effective

First Revised Sheet No. 165A First Revised Sheet No. 165A : Effective

Superseding: Original Sheet No. 165A

PART 3

GENERAL TERMS AND CONDITIONS

(Continued)

9.2 Interruption and Curtailment.

(a) Questar may use any portion of its reserved

capacity without interruption to maintain the safe and

reliable operation of its transmission system.

(b) If, due to any cause whatsoever, Questar

does not have sufficient injection capacity on any day to

serve all of its shippers, interruption of storage service

shall be made according to 10.2(a) of this part.

(c) If, due to any cause whatsoever, Questar

does not have sufficient withdrawal capacity on any day to

serve all of its shippers, interruption of storage service

shall be according to the allocation methodology in

10.2(b) of this part.

(d) Questar shall provide shipper as much

advance notice of any interruption 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 interruption.

(e) If curtailment of firm service is required,

Questar will make adjustments to injections or withdrawals

in a manner that attempts to minimize injury to its property

or facilities.