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

Third Revised Sheet No. 606A Third Revised Sheet No. 606A : Effective

Superseding: Second Revised Sheet No. 606A

FORM OF TRANSPORTATION SERVICE AGREEMENT

APPLICABLE TO RATE SCHEDULE IT-1 (Continued)

17. The interpretation and performance of this Service Agreement

shall be in accordance with, and controlled by, the laws of the State of North

Dakota.

18. Invoices and Notices. Invoices are subject to the General Terms

and Conditions of this Tariff including, but not limited to, Section 19 of the

General Terms and Conditions. Invoices and notices provided for in this

Service Agreement shall be in writing and shall be considered as having been

given if delivered personally, electronically or if mailed by United States

mail, postage prepaid, to the following addresses:

To Shipper:

Invoices for Transportation: ___________________________________

___________________________________

___________________________________

___________________________________

Email: ___________________________________

Notices: ___________________________________

___________________________________

___________________________________

___________________________________

Email: ___________________________________

To Transporter:

See Rate Schedule IT-1, Subsection 11.1.

(The rest of this sheet has been intentionally left blank).