Questar Southern Trails Pipeline Company

Original Volume No. 1

Effective Date: 10/14/2008, Docket: CP99-163-004, Status: Effective

Third Revised Sheet No. 41 Third Revised Sheet No. 41

Superseding: Second Revised Sheet No. 41

GENERAL TERMS AND CONDITIONS

3.5 Electronic Data Interchange (EDI). Southern Trails will also

maintain an Internet server and Internet address for conducting business

transactions via the Electronic Delivery Mechanism standards adopted by Order

No. 587-B and incorporated into this tariff by reference in § 28 of these

General Terms and Conditions. For EDI transactions, Southern Trails will

enter into a trading partner agreement with interested parties. Southern

Trails will adopt the NAESB Model Trading Partner Agreement reflecting

Internet standards. Southern Trails' EDI contact is listed on its website or

Shippers may contact the Customer Service Department at the telephone number

listed in § 4.1.

3.6 World Wide Web Page. Southern Trails has established HTML pages

accessible via the Internet's World Wide Web. The information that is

provided will be posted per FERC-adopted NAESB standards. The information on

this site includes, but is not limited to:

(a) Notices (critical notices, operation notices, systemwide

notices, etc.). Southern Trails will also support further notification, to be

designated by Shipper, and mutually agreed to, through the following channels:

(1) up to two internet e-mail addresses provided by Shipper or (2) additional

electronic notification specified by Shipper.

(b) FERC Order No. 2004 marketing and energy affiliate

information (affiliate capacity allocation log, discount postings, etc.).

(d) Index of customers.

(e) Southern Trails' tariff (terms, conditions and rates), or

General Terms and Conditions.

3.7 Web Page Access. Southern Trails' web page may be accessed at

WWW.QUESTARPIPELINE.COM.

3.8 Communication Protocols. As required by 18 C.F.R. §

284.12(b)(3)(ii),(iv) and (v) (2003), Southern Trails will