Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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Effective Date: 11/01/1993, Docket: RS92- 13-004, Status: Effective

Original Sheet No. 137 Original Sheet No. 137 : Effective

RATE SCHEDULE S-2

STORAGE SERVICE FOR SUPPLIERS (Continued)

2. APPLICABILITY AND CHARACTER OF SERVICE (Continued)

Transporter's right to do so or, if needed, seek authorization

to do so, if Transporter, in its sole discretion, deems such

capacity addition(s) to be appropriate.

2.7 If, on any day, gas is received for storage under this Rate

Schedule for the account of more than one Shipper, all such

service shall be accomplished on a pro rata basis, to the

extent practicable.

2.8 If, on any day, Transporter is required to transport and

deliver under Subsection 2.1.2 hereof, gas belonging to two or

more Shippers, but is unable to deliver all of such gas due to

operating conditions, then all delivery service hereunder shall

be provided on a pro rata basis, to the extent practicable.

3. RATES

The currently effective rates for service under this Rate Schedule

are the rates stated on Sheet No. 21 in Second Revised Volume No. 1

of this FERC Gas Tariff, as they may be revised from time to time;

provided, however, that the rate for service under Subsection 2.1.2

of this Rate Schedule shall be adjusted each month to permit

Transporter to recover from Shipper any third party costs, actually

incurred by Transporter, for gathering, compressing, treating, and

conditioning such gas.

4. ACCOUNTING

Quantities received by Transporter for storage for Shipper's account

and subsequently purchased by Transporter, or redelivered by

Transporter for Shipper's account, shall be accounted for on a First

In - First Out (FIFO) basis. Quantities received for storage and

quantities subsequently purchased and/or redelivered shall be

thermally balanced.

5. MONTHLY MINIMUM BILL

None.

6. GENERAL TERMS AND CONDITIONS

All the General Terms and Conditions of Second Revised Volume No. 1

of this FERC Gas Tariff shall apply to this Rate Schedule.