Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 05/01/2003, Docket: RP03-323-000, Status: Effective

Second Revised Sheet No. 603 Second Revised Sheet No. 603 : Effective

Superseding: First Revised Sheet No. 603

FORM OF TRANSPORTATION SERVICE AGREEMENT

APPLICABLE TO RATE SCHEDULE IT-1 (Continued)

3. Interruption. Transportation service rendered hereunder shall be

subject to curtailment or interruption when, in Transporter's reasonable dis

cretion and in accordance with established priorities, such curtailment or

interruption is necessary due to operating conditions or insufficient pipeline

capacity available on Transporter's system, or is otherwise necessary to

provide authorized firm service.

4. Points of Receipt and Delivery. Shipper agrees to tender gas for

transportation and Transporter agrees, on an interruptible basis, to accept

receipt quantities (up to the point-specific Interruptible Receipt Quantities)

at the point(s) of receipt on Transporter's transmission system identified in

Exhibit "A", attached hereto and made a part hereof. Transporter agrees, on

an interruptible basis, to transport and deliver up to the point-specific

Interruptible Delivery Quantities to Shipper at the point(s) of delivery

identified in Exhibit "A", attached hereto and made a part hereof.

5. Rate Schedule. Shipper shall each month pay Transporter for

transportation service rendered at rates established pursuant to Transporter's

Rate Schedule IT-1, or any effective superseding Rate Schedule on file with

the FERC. Such rates shall not be applicable to service provided pursuant to

Section 51 of the General Terms and Conditions of this Tariff.

6. Incorporation by Reference. This Service Agreement in all

respects shall be subject to the provisions of Rate Schedule IT-1 and to the

applicable provisions of the General Terms and Conditions of Transporter's

FERC Gas Tariff, Second Revised Volume No. 1 as such are on file with the FERC

(subject to such adjustments to the General Terms and Conditions as may be

made pursuant to Section 16 of this Service Agreement), all of which are by

reference made a part hereof.

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