Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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

Third Revised Sheet No. 579 Third Revised Sheet No. 579 : Effective

Superseding: Second Revised Sheet No. 579

FORM OF TRANSPORTATION SERVICE AGREEMENT

APPLICABLE TO RATE SCHEDULE STN-1 (Continued)

3. Receipt of Alternate Supplies. Shipper is required to have in

place a supply contract(s) which is capable of making available an amount of

natural gas equal to the amount by which the total MDDQ specified for service

hereunder exceeds the Shipper's Rate Schedule FS-1 MSDQ. Exhibit A hereto

provides a listing of the receipt point(s), if any, which Shipper has

designated for alternate supplies of gas which will be tendered to Transporter

up to the MDRQ specified for such point(s) of receipt, as adjusted pursuant to

the CAP, upon the request of Transporter to the designated supplying

entity(ies). Such alternate supplies must have access to existing receipt

point(s) into Transporter's system within an existing contract path under

Shipper's Rate Schedule ST-1 Service Agreement. Exhibit "C" provides, on a

line section by line section basis, the designated priorities of the alternate

supplies and the order in which Shipper desires that Transporter contact the

supplying entities (if possible) should it become necessary for Transporter to

require that additional gas supplies to be delivered to Transporter's system

to ensure the provision of service hereunder.

4. Delivery. Exhibit "A" specifies the MDDQ at each point of

delivery as referred to in Section 2. above.

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

transportation service rendered hereunder at rates established pursuant to

Transporter's Rate Schedule STN-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 STN-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 14 of this Service Agreement) all of which are by

reference made a part hereof.

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