Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 08/23/2004, Docket: RP04-410-000, Status: Effective

Fourth Revised Sheet No. 108 Fourth Revised Sheet No. 108 : Effective

Superseding: Third Revised Sheet No. 108

RATE SCHEDULE FS-1

FIRM STORAGE SERVICE (Continued)

3. STORAGE SERVICE CHARGES (Continued)

3.2.1 Injection/Withdrawal Charge: Shipper shall be charged an

amount obtained by multiplying the unit injection charge and/or

the unit withdrawal charge set forth in the Service Agreement by

the quantity of gas in dkt injected into and/or withdrawn from

storage during the month.

3.2.2 Capacity Reservation Charge: Shipper shall, each month,

be assessed a capacity reservation charge consisting of Shipper's

MSCQ in equivalent dkt multiplied by the applicable rate set forth

in the Service Agreement. Shipper shall be responsible for paying

the capacity reservation charge beginning on the effective date

provided in Section 7 of the Service Agreement.

3.2.3 Deliverability Reservation Charge: Shipper shall, each

month, be assessed a deliverability reservation charge consisting

of Shipper's MSDQ in equivalent dkt multiplied by the applicable

rate set forth in the Service Agreement. Shipper shall be

responsible for paying the deliverability reservation charge

beginning on the effective date provided in Section 7 of the

Service Agreement.

3.3 Adjustment of Rates: Subject to the terms of the Service

Agreement, Transporter may prescribe and/or adjust at any time any of

the rates applicable to any individual Shipper without adjusting any

other rates for that or another Shipper; provided, however, that such

adjusted rate(s) shall not exceed the applicable maximum rate(s) nor

shall they be less than the applicable minimum rate(s) set forth on

Sheet No. 19 of this Tariff, or any superseding tariff. Such minimum

and maximum rates shall not be applicable to service provided pursuant

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

Should Transporter and Shipper negotiate a specific discount rate, such

downward price adjustment shall be for a specific term and shall apply

only if one or more of the following instances occur: (1) during

specified periods of the year or for a specifically defined period;

and/or (2) to specified receipt/delivery points, subsystem(s) and/or

other defined geographical area(s). Unless otherwise agreed, at the

expiration of the stated term specified in Exhibit "A" of the Service

Agreement, the rate(s) for service hereunder shall be the maximum

allowable rate(s) under this Rate Schedule.

4. MINIMUM MONTHLY BILL

The minimum monthly bill shall be the sum of the capacity reservation

and deliverability reservation charges.