Questar Southern Trails Pipeline Company

Original Volume No. 1

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

Second Revised Sheet No. 12 Second Revised Sheet No. 12 : Effective

Superseding: First Revised Sheet No. 12




Shipper's bill for the reservation charges billed the replacement Shipper. If

the replacement Shipper fails to pay Southern Trails, Southern Trails will

notify the releasing Shipper that the conditional credit has been reversed and

that the total amount is due pursuant to § 16.10 of the General Terms and



(v) If Southern Trails interrupts service due to a force

majeure occurrence, the reservation charge otherwise payable for a month shall

be credited by an amount equal to the product of the quantity Southern Trails

failed to receive or deliver on each day of the month times the daily

reservation charge credit rate specified on the Statement of Rates. When a

shipper is paying a discounted reservation rate the daily reservation charge

credit rate shall be reduced by the difference between the discounted

reservation rate and the maximum reservation rate. The credit, which reflects

the return on equity and income tax component of Southern Trails' reservation

charge, shall be included on Southern Trails billing to Shipper.


(b) Usage Charge. Shipper shall pay the appropriate usage

charge for all gas delivered by Southern Trails for transportation. The usage

charge shall be stated in the transportation service agreement or any

amendment and shall be no more than the maximum nor less than the minimum rate

specified in the Statement of Rates.


(c) Overrun Charges. Shipper shall pay all overrun charges that

may be assessed according to this rate schedule and Southern Trails' Statement

of Rates for all authorized or unauthorized overrun quantities of gas

transported by Southern Trails.


(d) Additional Facility Charge. Any charge for additional

facilities shall be paid by Shipper according to § 24 of the General Terms and



(e) Cashout. Shipper will be subject to the balancing and

cashout provisions according to § 15 of the General Terms and Conditions.


(f) Marketing Fee. Shipper and Southern Trails may agree upon

a fee to be paid by Shipper to Southern Trails when Southern Trails actively

markets any capacity that is released to a replacement Shipper.