Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 06/01/1997, Docket: RP97-352-000, Status: Effective

Third Revised Sheet No. 179 Third Revised Sheet No. 179 : Effective

Superseding: Second Revised Sheet No. 179

GENERAL TERMS AND CONDITIONS (Continued)

1. DEFINITION OF TERMS (Continued)

1.40 The term "Shipper" means any party with whom Transporter has a

Service Agreement under one or more of Transporter's Rate

Schedules pursuant to the terms of this Tariff.

1.41 The term "stop-in-time" refers to the use of one of Transporter's

storage services as an intermediate stop in an on-going

transportation transaction. Storage facilities in this context

shall be considered intermediate receipt and/or delivery points,

as applicable.

1.42 The term "storage service" consists of the acceptance by

Transporter of gas tendered for Shipper's account for storage in

Transporter's aggregate storage facilities, the injection and

withdrawal of that gas into and out of Transporter's aggregate

storage facilities, and the storage of that gas in Transporter's

aggregate storage facilities.

1.43 The term "thermal balancing" means balancing the thermal content

of the gas tendered to Transporter's pipeline system (including

storage facilities) hereunder and the thermal content of the gas

delivered therefrom.

1.44 The term "thermal content" when applied to any volume of gas means

the aggregate number of Btu's contained in such volume. The

thermal content shall be determined by multiplying the volume of

gas in cubic feet by the gross heating value of the gas.

1.45 The term "transportation service" consists of the acceptance by

Transporter of gas tendered by Shipper to Transporter's trans-

mission system, the transportation of that gas, either directly or

by displacement through Transporter's transmission system, and the

redelivery of gas to Shipper at the point(s) of delivery.

1.46 The term "Transporter" means Williston Basin Interstate Pipeline

Company.

1.47 The term "Capacity Adjustment Provision (CAP)", for all purposes

other than ADQ and ARQ, shall mean a procedure whereby the

relevant firm capacity in equivalent dkt specified in the

applicable Service Agreement multiplied by a fraction, the

numerator of which is the latest available estimated Btu content

per cubic foot at the relevant receipt or delivery point and the

denominator of which is 1,000. Transporter shall post the Btu