Questar Southern Trails Pipeline Company

Original Volume No. 1

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

First Revised Sheet No. 97 First Revised Sheet No. 97 : Effective

Superseding: Original Sheet No. 97

GENERAL TERMS AND CONDITIONS

default or defaults, whether of a like or a different character.

21. REGULATIONS

Any transportation service agreement incorporating these General Terms

and Conditions, and all terms and provisions included in these General Terms

and Conditions, and the respective obligations of Southern Trails or Shipper

are subject to valid laws, orders, rules and regulations of duly constituted

authorities having jurisdiction. Nothing shall, or is intended to, restrict,

enlarge or affect in any other way the jurisdiction of the FERC.

22. ASSIGNMENTS

Southern Trails may pledge or charge its interest under a transportation

service agreement under the provisions of any mortgage, deed of trust,

indenture, security agreement, loan agreement, or similar instrument which it

executes. Shipper shall not assign any of its rights under a transportation

service agreement incorporating these General Terms and Conditions unless it

first shall have obtained the consent of Southern Trails in writing and the

assignment does not conflict with FERC regulations and policies. Shipper may

not pledge or charge its interest under a transportation service agreement

under the provisions of any mortgage, deed of trust, indenture, security

agreement, loan agreement or similar instrument which it executes without the

consent in writing of Southern Trails. No person which succeeds by purchase,

merger or consolidation to the properties of Shipper shall be entitled to any

part of the interest of Shipper under its transportation service agreement

without the written consent of Southern Trails.

23. SHIPPER'S FAILURE TO COMPLY WITH TERMS

If Shipper fails to comply with the terms of its transportation service

agreement and the General Terms and Conditions of this tariff, Southern Trails

will, after obtaining appropriate abandonment authorization from the

Commission, terminate service to Shipper.

24. FACILITIES CONSTRUCTION AND REIMBURSEMENT

24.1 Payment for Facilities. If Southern Trails installs facilities

at the request of a Shipper, that Shipper shall