Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 07/01/2003, Docket: RP03-488-000, Status: Effective

Fourth Revised Sheet No. 553 Fourth Revised Sheet No. 553 : Effective

Superseding: Third Revised Sheet No. 553

FORM OF TRANSPORTATION SERVICE AGREEMENT

APPLICABLE TO RATE SCHEDULE ST-1 (Continued)

2. Authorized Overrun Quantities. Upon request of Shipper and at

Transporter's option, Transporter may receive and deliver for Shipper's

account, on any day, quantities of gas in excess of Shipper's point-specific

MDDQ(s) or total ADQ as specified in Exhibit "A" to the Service Agreement,

each as adjusted pursuant to the CAP. Such quantities of gas shall be

received and delivered on an interruptible basis. For such excess gas

transported and delivered, Shipper shall pay an amount obtained by multiplying

the quantity of such excess gas during the month by the Scheduled Overrun

Charge.

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

transportation and Transporter agrees to accept up to the MDRQ at the point(s)

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

as adjusted pursuant to the CAP. Transporter agrees to transport and deliver

up to the MDDQ to Shipper (or for Shipper's account) at the point(s) of

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

adjusted pursuant to the CAP. All pooling points, as described in Subsection

48.2.1 of the General Terms and Conditions, and Imbalance Point ID Nos. 00005

and 00006 are logical points and may be nominated in accordance with the

General Terms and Conditions of Transporter's FERC Gas Tariff, Second Revised

Volume No. 1.

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

transportation service rendered hereunder at rates established pursuant to

Transporter's Rate Schedule ST-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.

5. Incorporation by Reference. This Service Agreement in all

respects shall be subject to the provisions of Rate Schedule ST-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.

6. 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.