Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 08/04/2006, Docket: RP06-427-000, Status: Effective

Second Revised Sheet No. 604 Second Revised Sheet No. 604 : Effective

Superseding: First Revised Sheet No. 604

FORM OF TRANSPORTATION SERVICE AGREEMENT

APPLICABLE TO RATE SCHEDULE IT-1 (Continued)

7. Changes in Rates and Terms. Nothing contained herein shall be

construed as affecting in any way the right of Transporter to make unilateral

changes in the applicable rates, charges, adjustments, terms, conditions,

tariffs and rate schedules pursuant to Section 4 of the Natural Gas Act, or

any other applicable statute, and the rules and regulations promulgated

thereunder. Shipper agrees to pay such rates as may be made effective

hereunder without prejudice to the rights of Shipper to contest such changes.

The transportation rates for service hereunder shall be as listed on Exhibit

"A" which is attached hereto and made a part hereof.

8. Term of Agreement. This Service Agreement shall continue in full

force and effect for a primary term beginning on (specific date or triggering

event) ___________________ and ending on (specific date or

term)________________ and from month to month thereafter. Either Party may

terminate this Service Agreement after the primary term upon thirty (30) days

written notice to the other Party pursuant to the provisions of Transporter's

FERC Gas Tariff, Second Revised Volume No. 1 or other applicable authority.

9. Termination Obligations. Termination of this Service Agreement

shall not relieve Transporter and Shipper of the obligation to correct or

cash-out, as applicable, any quantity imbalances hereunder or Shipper of the

obligation to pay money due hereunder to Transporter for services rendered.

10. When this Service Agreement becomes effective, it shall supersede

and cancel the following contract(s) between the Parties hereto:

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