Questar Pipeline Company

First Revised Volume No. 1

Effective Date: 06/21/2005, Docket: RP05-349-000, Status: Effective

Fourth Revised Sheet No. 120 Fourth Revised Sheet No. 120 : Effective

Superseding: Third Revised Sheet No. 120

PART 2

GENERNAL TERMS AND CONDITIONS

(Continued)

13. CUSHION GAS

13.1 Questar shall, as it determines necessary, make periodic

adjustments to its peaking storage reservoir cushion gas inventories to

support peaking storage service.

13.2 Whenever it is necessary for Questar to inject cushion gas into

its peaking storage reservoirs, injections of cushion gas shall have priority

over injections of a shipper's working gas.

14. FUEL REIMBURSEMENT

14.1 Categories of Fuel Usage. Two categories of fuel usage exist at

Questar's peaking storage facilities: First, utility fuel that (a) is consumed

to generate heat and electricity, (b) includes any lost-or-unaccounted-for

volumes and (c) does not vary with the level of injections or withdrawals; and

second, compressor and dehydration fuel that is consumed in direct proportion

to the level of injections and withdrawals.

14.2 Utility Fuel. Shipper must reimburse Questar in kind for its

proportionate share of utility fuel usage each month at each peaking storage

reservoir as follows:

Buyer's utility fuel responsibility = (X/Y) * U

X = Shipper's gross working gas

Y = The sum of the PAL2 service account and of

all shippers' gross working gas at a particular peaking

storage reservoir

U = Utility fuel for each month at that particular peaking

storage reservoir

* = Multiplication operator

14.3 Compressor and Dehydration Fuel. Shipper shall reimburse Questar

in kind for its proportionate share of compressor and dehydration fuel each

month as follows: