Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 08/01/1998, Docket: RP98-253-000, Status: Effective

Second Revised Sheet No. 556 Second Revised Sheet No. 556 : Effective

Superseding: First Revised Sheet No. 556

FORM OF TRANSPORTATION SERVICE AGREEMENT

APPLICABLE TO RATE SCHEDULE ST-1 (Continued)

16. Adjustments to General Terms and Conditions. Certain of

the General Terms and Conditions are to be adjusted for purposes of

this Service Agreement, as specified below:

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, Notices and Statements. Any invoices, notices

and statements provided for in this Service Agreement shall be in

writing and shall be considered as having been given if delivered

personally or if mailed by United States mail, postage prepaid, to the

following addresses, respectively:

To Shipper:

Invoices for Transportation: ___________________________________

___________________________________

All Notices: ___________________________________

___________________________________

Imbalance Statements:

Attn: ___________________________________

Facsimile Number: ___________________________________

To Transporter:

See Rate Schedule ST-1, Subsection 12.1.

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