Questar Pipeline Company

First Revised Volume No. 1

Effective Date: 07/25/2005, Docket: RP05-401-000, Status: Effective

Fourth Revised Sheet No. 118 Fourth Revised Sheet No. 118 : Effective

Superseding: Third Revised Sheet No. 118

PART 2

GENERAL TERMS AND CONDITIONS

(Continued)

(e) As soon as practicable following the conclusion of each

injection period, but in no event more than 30 days afterwards, Questar shall

estimate the recoverable working gas for each shipper in each of its aquifer

storage reservoirs. Questar shall update its estimate of the recoverable

working gas each shipper has remaining in each reservoir whenever such update

is deemed necessary by Questar.

(f) Questar's most recent estimate of recoverable working gas

shall be utilized in the formula set forth in § 9.2(b) of this Part 2 for the

purpose of allocating withdrawal capacity among Rate Schedule PKS shippers.

Questar's estimates of recoverable working gas shall be used solely for the

purpose of allocating and limiting withdrawals of working gas on a day-to-day

basis. The estimates shall not create any obligation on the part of Questar

other than that related to the computation of daily withdrawal allocations and

shall not relieve shipper of its obligations under § 9.6(c) of this Part 2

(g) Whenever a shipper's cumulative withdrawals of gas from a

peaking storage reservoir during a given annual storage cycle equal or exceed

Questar's most recent estimate of that shipper's recoverable working gas

remaining in that reservoir, Questar will not accept nominations from that

shipper for additional withdrawals from that reservoir.

(h) Questar will not compensate shipper for any benefit obtained

by any other shipper receiving peaking storage service during any annual

storage cycle and shall not incur any liability whatsoever.

9.6 Non-Recoverable Working Gas. During any annual storage cycle, a

portion of each shipper's working gas may become permanently non-recoverable.

(a) Except as provided for in § 17 of this Part 2, Questar

shall not be responsible for, nor compensate a shipper for, non-recoverable

working gas.