Questar Southern Trails Pipeline Company

Original Volume No. 1

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Effective Date: 07/01/2003, Docket: RP03-391-001, Status: Effective

Substitute Original Sheet No. 64B Substitute Original Sheet No. 64B : Effective

GENERAL TERMS AND CONDITIONS

When capacity is recalled, it may not be reput for the same gas day.

The deadline for notifying Southern Trails of a reput is 8:00 a.m. to allow

for timely nominations to flow on the next gas day. Recall notifications to

Southern Trails must be expressed in terms of total released capacity

entitlements. Southern Trails is not obligated to deliver in excess of the

total daily contract quantity of the release. For recall notification

provided to Southern Trails prior to the recall notification deadline

specified above (NAESB Standard 5.3.44), and received between 7:00 a.m. and

5:00 p.m., Southern Trails will provide notification to all affected

replacement shippers no later than one hour after receipt of such recall

notification. For recall notification provided to Southern Trails after 5:00

p.m. and prior to 7:00 a.m., Southern Trails will provide notification to all

affected replacement Shippers no later than 8:00 a.m. after receipt of such

recall notification.

7.20 Compliance by Replacement Shipper. By acquiring released

capacity, a replacement Shipper agrees that it will fully comply with all

terms and conditions of this tariff. The terms and conditions of the original

release, except price, term and volume, will be binding on all replacement

Shippers.

7.21 Obligations of Releasing Shipper. The releasing Shipper shall

continue to be liable and responsible for all