Questar Southern Trails Pipeline Company

Original Volume No. 1

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Effective Date: 10/01/2009, Docket: RP09-1028-000, Status: Effective

Second Revised Sheet No. 122 Second Revised Sheet No. 122

Superseding: First Revised Sheet No. 122

Contract No. _____

FORM OF INTERRUPTIBLE TRANSPORTATION SERVICE AGREEMENT

Rate Schedule IT

1. Shipper's Name and Address:

2. Shipper's Status:

________ Local distribution company (LDC)

________ intrastate pipeline company

________ interstate pipeline company

________ marketer

________ end use customer

________ other

3. Transportation on Behalf of:

________ LDC

________ intrastate pipeline company

________ interstate pipeline company

________ Shipper

4. Transportation Authority:

________ 18 C.F.R. § 284 Subpart B (NGPA § 311)

________ 18 C.F.R. § 284 Subpart G

5. Rate Schedule IT Transportation Quantity:

________ Dth/day

6. Rates:

Usage Charges:

________ See Additional Terms

Receipt Pt. Delivery Pt. Type of Usage Rate

MAP No. MAP No. Charge $/Dth

________ ________ ________ ________