Questar Pipeline Company

First Revised Volume No. 1

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Effective Date: 07/25/2005, Docket: RP05-401-002, Status: Effective

Sub. Fifth Revised Sheet No. 31 Sub. Fifth Revised Sheet No. 31 : Effective

Superseding: Fifth Revised Sheet No. 31

RATE SCHEDULE T-2

INTERRUPTIBLE TRANSPORTATION SERVICE

(Continued)

the currently effective Statement of Rates, as adjusted from time to time.

The charges shall include the following:

(a) Usage Charge. Shipper shall pay the appropriate usage charge

for all gas nominated by shipper and scheduled by Questar for delivery. The

usage charge will be stated in the transportation service agreement and shall

be no more than the maximum nor less than the minimum rate specified in the

Statement of Rates.

(b) Fuel Reimbursement. Shipper shall reimburse Questar for fuel

use and lost-and-unaccounted-for gas in kind according to § 12.15 of the

General Terms and Conditions and the Statement of Rates.

(c) Additional Facility Charge. Any charge for additional

facilities necessary to provide transportation service to shipper will be

determined according to §§ 15 and 18 of the General Terms and Conditions of

Part 1.

(d) Annual Charge Adjustment. The annual charge adjustment

listed on the Statement of Rates shall apply to all quantities of gas

transported for shipper under this rate schedule.

(e) Cashout Charges. An imbalance charge will be assessed

according to § 12 of the General Terms and Conditions.

(f) Imbalance Trading Fee. Shipper shall pay Questar a fee as

listed on the Statement of Rates for any imbalance trades that are actively

marketed and facilitated by Questar.