Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 08/01/2003, Docket: RP03-286-004, Status: Effective

Sixth Revised Sheet No. 109A Sixth Revised Sheet No. 109A : Effective

Superseding: Fifth Revised Sheet No. 109A

RATE SCHEDULE FS-1

FIRM STORAGE SERVICE (Continued)

6. AUTHORIZED SCHEDULED OVERRUN STORAGE

Upon request of Shipper and at Transporter's option, Transporter may

receive for injection and/or withdrawal for Shipper's account, on any

day, quantities of gas in excess of the MSIQ and/or MSDQ shown in

Exhibit A to Shipper's Service Agreement, each as adjusted pursuant to

the CAP. Such quantities shall be injected and/or withdrawn on an

interruptible basis. For such excess gas injected and/or withdrawn,

Shipper shall pay an amount obtained by multiplying the quantity of such

excess gas during the month by the Scheduled Overrun Charge.

7. FUEL AND ELECTRIC POWER REIMBURSEMENT

Shipper shall reimburse Transporter in-kind for fuel use, lost and

unaccounted for gas and in-dollars for electric power use in accordance

with Subsection 1.15 and Section 38 of the General Terms and Conditions.

The Total Fuel Reimbursement Percentage per dkt and Total Electric Power

Reimbursement Rate per dkt, as applicable, shall be applied to the

quantities of gas injected and/or withdrawn, as applicable, by

Transporter for Shipper's account at Transporter's storage facilities.

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