Questar Pipeline Company

First Revised Volume No. 1

Effective Date: 01/01/2008, Docket: RP07-606-001, Status: Effective

Fifth Revised Sheet No. 171 Fifth Revised Sheet No. 171 : Pending

Superseding: Sub. Fourth Revised Sheet No. 171

PART 3

GENERAL TERMS AND CONDITIONS

(Continued)

13. MEASUREMENT AND MEASUREMENT EQUIPMENT

All volumes of gas delivered by shipper to Questar for injection and

storage, as well as all volumes of gas withdrawn from storage and delivered to

shipper by Questar, shall be determined according to the general procedures

stated in the General Terms and Conditions of Part 1 of this tariff.

14. FACILITIES

Any requests for additional facilities associated with Clay Basin

storage service will be considered according to the General Terms and

Conditions of Part 1 of this tariff.

15. CUSHION GAS

Questar shall, as it determines necessary, make periodic adjustments to

its storage cushion gas inventory to support the levels of storage service for

itself and other customers.

16. FUEL AND GAS LOSS REIMBURSEMENT

16.1 Categories of Fuel Reimbursement. Two categories of fuel and gas

losses exist at the Clay Basin storage facility: Utility Fuel and Operating

Fuel and Shrinkage, which are defined as follows:

(a) Utility Fuel including:

(1) heat and electricity, generation gas and

(2) lost or unaccounted-for gas.

(b) Operating Fuel and Shrinkage, including:

(1) compressor fuel,

(2) dehydration fuel,

(3) conditioning fuel,

(4) conditioning shrinkage and

(5) conditioning quantity as described in § 16.4(b).

Note: For purposes of this Section 16, "conditioning" refers to removal of

hydrocarbon fractions by facilities installed and operated by Questar at or

near its Clay Basin storage facility.

16.2 Utility Fuel Reimbursement. Shipper shall reimburse Questar in

kind for its proportionate share of Utility Fuel each month as follows: