Questar Southern Trails Pipeline Company

Original Volume No. 1

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Effective Date: 06/01/2002, Docket: RP02-318-000, Status: Effective

Original Sheet No. 110 Original Sheet No. 110 : Effective

GENERAL TERMS AND CONDITIONS

Southern Trails shall post a revised FGRP five days in advance

of the first of each month to be effective during the month.

Southern Trails shall have the right to adjust the FGRP to

reflect the actual quantity of gas used by Southern Trails so

as not to create an imbalance on its system. The FGRP will

include three components: (1) system gas consumption, (2) lost

or gained and unaccounted-for quantities and (3) prior 12

months' ending March 31, variance adjustment that includes

unamortized or over amortized quantities from the proceeding

July 1, through June 30, 12-month amortization period.

(b) Calculation. The monthly FGRP will be calculated

using the most recent available actual data and be equal to

(i) plus (ii) plus (iii) of this section.

(i) Projected monthly lost and unaccounted-for

component of the FGRP will equal (i)(1) divided by (i)(2):

(1)Projected transmission system losses or

gains and unaccounted-for quantities will be calculated by

subtracting the physical transmission deliveries for the

month, two months previous to the projected month, including

actual system gas consumed, from corresponding physical

transmission receipts as adjusted for anticipated changes in

system operations.

(2)Projected monthly scheduled transportation

receipt quantities. Projected monthly scheduled

transportation receipts will be based on the scheduled

transmission receipt quantities for the month, two months

previous to the projected month, as adjusted for anticipated

changes in system operations.

(ii) Projected monthly system gas consumption.

Projected transmission system gas consumption will be based on

the actual fuel consumed at each compressor station,

extraction plant or other fuel consuming facility for the

month, two months previous to the projected month, as adjusted

for anticipated changes in system operations divided by

projected monthly scheduled transportation receipt quantities.

Projected monthly scheduled transportation receipts will be

based on the scheduled transmission receipt quantities for the

month, two months previous to the projected month, as adjusted

for anticipated changes in system operations.

(iii) Prior 12 months ending March 31 variance

adjustment. The variance adjustment for each 12 months ending