Questar Southern Trails Pipeline Company

Original Volume No. 1

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Effective Date: 01/23/2006, Docket: RP06-154-000, Status: Effective

First Revised Sheet No. 109 First Revised Sheet No. 109 : Effective

Superseding: Substitute Original Sheet No. 109

GENERAL TERMS AND CONDITIONS

Southern Trails share operating personnel with any marketing or energy

affiliate.

(b) Southern Trails shares no position of common responsibility

with its marketing or energy affiliate. The affiliated marketer leases office

space in the same office building as Southern Trails at 180 East 100 South,

Salt Lake City, Utah 84111.

(c) Except as noted in (a) and (b) above, Southern Trails shares

no facilities or operating personnel with any affiliated marketing or energy

affiliate company for which Southern Trails conducts any transportation

transactions.

29.2 Procedures for Resolving Complaints by Shippers. If a Shipper has

a concern relating to any request for transportation service or any ongoing

transportation service, Shipper may request a Shipper inquiry form, an example

of which is set forth in this Tariff at Sheet No. 119. Shipper shall complete

the inquiry form and return it to:

Questar Southern Trails Pipeline Company

Senior Vice President

180 East 100 South

Salt Lake City, UT 84111

FAX: (801) 324-2684

Southern Trails shall respond initially within 48 hours of receipt of

Shipper's inquiry. Each inquiry will be noted on the transportation request

log. Each inquiry shall be investigated, and Southern Trails shall inform

Shipper in writing within 30 days of receipt of Shipper's inquiry of any

action taken. Southern Trails shall maintain a separate file for all Shipper

inquiries and Southern Trails' responses.

30. FUEL REIMBURSEMENT

(a) Application. All gas tendered by Shipper for transportation

under Rate Schedules FT and IT, or negotiated rate agreements, shall be

subject to in-kind reimbursement, as posted on Southern Trails Web site for

gas consumed in transmission-system operations and for lost-and-unaccounted-

for gas. The fuel-gas reimbursement percentage (FGRP), shall be displayed on

Southern Trails' informational postings for each month. The FGRP shall be

applied to quantities of gas tendered by Shipper. Shipper's total receipt-

point nominations must include the amount of gas equal to the FGRP.