Questar Overthrust Pipeline Company

Second Revised Volume No. 1-A

Effective Date: 12/15/2007, Docket: RP08- 71-000, Status: Effective

First Revised Sheet No. 116 First Revised Sheet No. 116 : Effective

Superseding: Original Sheet No. 116

GENERAL TERMS AND CONDITIONS

33.4 Backhauls/Forwardhauls. Overthrust will permit forwardhauls, up

to the contract RDC, and backhauls, up to the contract RDC, to the same

delivery point at the same time, subject to capacity availability. If

backhauls are permitted, they will be assigned a priority pursuant to § 11.1

(c).

34. APPLICABLE LAW

Any agreement executed pursuant to the terms and conditions of this

tariff shall be interpreted according to the laws of the state of Utah

without regard to choice of law rule.

35. GAS USE, LOST OR GAINED AND UNACCOUNTED-FOR GAS-REIMBURSEMENT AND

TRACKING

35.1. Application. The transportation rates set forth on Overthrust's

Statement of Rates do not provide for the recovery of gas used and lost and

unaccounted-for gas. Therefore, all shippers tendering gas for

transportation service, under Overthrust's capacity lease with Rockies

Express Pipeline LLC, under Rate Schedules FT and IT and under negotiated

rate agreements will be charged an in-kind Fuel Gas Reimbursement Percentage

(FGRP) to reimburse Overthrust for their respective share of gas used, lost,

gained or unaccounted-for gas. Overthrust will post a receipt/delivery point

matrix no less than five (5) days before the beginning of each month on its

web site under Informational Postings. The matrix will include the following

components: (1) compressor station gas use which shall be applicable to each

shipper's nominated receipt /delivery point pairs that require compression at

one or more of Overthrust's compressor stations, (2) miscellaneous

transmission system gas use and lost or gained and unaccounted-for gas (ML&U)

applicable to all transportation quantities and (3) annual variance

adjustment effective during each 12-month period beginning September 1st of

each year to amortize the difference between the posted FGRP and the FGRP

actually experienced each month. FGRP factors shall be applied to quantities

of gas tendered by Shipper. Shipper's total receipt-point nominations must

include the amount of gas associated with the FGRP factor.

35.2. Nominated receipt/delivery point combinations that run counter to

compressor station designed flow direction or that do not traverse a

compressor station shall not be assessed a compressor station FGRP.

35.3. All nominated receipt/delivery point combinations will be subject

to the L&U component of the FGRP.