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. 38 First Revised Sheet No. 38 : Effective

Superseding: Original Sheet No. 38



2.6 Capacity Release. In the event of a capacity release, Southern

Trails and the releasing Shipper may, in connection with their firm

negotiated rate agreement, agree upon payment obligations and crediting

mechanisms that vary from or are in addition to those set forth in § 7 of

this Tariff. This provision, in and of itself, does not allow Southern

Trails and the releasing Shipper to negotiate the terms and conditions of



2.7 Capacity Scheduling. For purposes of allocating capacity under §

14 of these General Terms and Conditions, a Shipper paying a negotiated rate

that exceeds the maximum rate for that service will be considered to have

paid the maximum rate for such service.


2.8 Accounting for Costs and Revenues. Allocation of costs to and

recording of revenues from service at negotiated rates or rate formulas will

follow Southern Trails' normal practices associated with transportation

services provided under this tariff. If Southern Trails institutes any

revenue tracker or other device to flow through to its Shippers the impact of

interruptible or other transportation transactions, the treatment of such

tracker of revenues from nonconforming negotiated rates or rate formulas

shall be specified in the applicable tariff provision.


2.9 Section 4(e) Rate Case Tracking. Southern Trails will separately

record the volume transported, billing determinants, rate components,

surcharges and the revenue associated with its negotiated-rate transactions

so that this information can be separately identified, and separately totaled

as part of Statements G, I, and J in any applicable rate case filing under §

4(e) of the Natural Gas Act, 15 U.S.C. & § 717(c). Southern Trails' recovery

of surcharges will comport with existing practices.




3.1 Informational Postings and Questline. Southern Trails will

provide an internet site for informational postings, and interactive systems

for contracting/capacity release and nominations/confirmations (collectively

referred to as Questline) on a nondiscriminatory basis to any party that has

compatible computer equipment and communication software. The informational

postings will include notices, marketing and energy affiliate information,

operationally available and unsubscribed capacity, index of customers and the