Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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Effective Date: 11/23/2006, Docket: RP07- 33-000, Status: Effective

Fourth Revised Sheet No. 537 Fourth Revised Sheet No. 537 : Effective

Superseding: Third Revised Sheet No. 537

FORM OF TRANSPORTATION SERVICE AGREEMENT

APPLICABLE TO RATE SCHEDULE FTN-1 (Continued)

EXHIBIT "C"

to Rate Schedule FTN-1 No-Notice Firm Transportation Service Agreement dated

_____________ between

WILLISTON BASIN INTERSTATE PIPELINE COMPANY (Transporter)

and ____________________________________________ (Shipper)

Effective date of Exhibit "C"______________________________________

Supersedes Exhibit "C" dated ______________________________________

The alternate supplies shown at the receipt point(s) in Exhibits "A" and "B"

have been prioritized by line section as shown below. Such prioritization

specifies the order in which Transporter should make contacts, unless

circumstances dictate otherwise, to obtain additional gas supplies to provide

service hereunder.

APPLICABLE WILLISTON BASIN INTERSTATE PIPELINE COMPANY LINE SECTION

DESIGNATIONS:

1. Cabin Creek Plant-Dickinson Plant 2. Dickinson Plant-Bismarck Plt

3. Bismarck Plant-Cleveland Plt 4. Cleveland Plant - Grafton

5. Cabin Creek Plant-Morgan Creek Plt 6. Morgan Ck. Plt-Williston Plt

7. Williston Plt-Minot-Bismarck Plt 8. Malta-Fort Peck Plant

9. Fort Peck Plt-Vida Plant 10. Vida Plant-Morgan Creek Plt

11. Cabin Creek Plant-Baker Plant 12. Baker Plant-Little Beaver Plt

13. Little Beaver Plt-Belle Fourche Plt 14. Belle Fourche Plt-Recluse

15. Belle Fourche Plt-Rapid City 16. Cabin Crk. Plt-Hathaway Plt

17. Hathaway Plant-Hardin Plant 18. Hardin Plt-Elk Basin-Lovell Plt

19. Madden-Worland Plant 20. Worland Plant-Lovell Plant

21. Lovell Plant-Elk Basin Plant 22. Elk Basin Plant-Billings

23. Billy Creek Plant-Sheridan 24. Cleveland Plt-Mapleton Transfer

25. Portal-Tioga 26. Belle Crk Junction-Northern Border

Line Section No.:___________ Priority No. ______________________

Meter No.: _________ Maximum Daily Receipt Quantity: _____

Supplier Name: ________________________________________________

Address: ________________________________________________

________________________________________________

________________________________________________

Contact Person: ________________________________________________

Phone No.: ________________________________________________

Facsimile No.: ________________________________________________