Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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

Original Sheet No. 90 Original Sheet No. 90 : Effective

RATE SCHEDULE IT-1

INTERRUPTIBLE TRANSPORTATION SERVICE

1. AVAILABILITY

This Rate Schedule is available, on the basis described herein and is

subject to all other terms of this FERC Gas Tariff, Second Revised

Volume No. 1 (Tariff), to any party (hereinafter referred to as

"Shipper") for the transportation of natural gas by Williston Basin

Interstate Pipeline Company (hereinafter referred to as

"Transporter") pursuant to Subpart B or G of Part 284 of the FERC

Regulations, when Shipper desires Interruptible Transportation

Service, and:

1.1 Transporter can render service with its existing transmission

system without need for construction of any additional pipeline

facilities other than such new taps, valves, measurement equip-

ment, and other facilities which may be required at the

point(s) of receipt or delivery to effect receipt or delivery

of the gas;

1.2 Shipper has met the conditions of service specified in Section

7 hereof;

1.3 Shipper and Transporter have executed a Service Agreement for

service under this Rate Schedule; and

1.4 This Rate Schedule and the General Terms and Conditions made a

part hereof shall also apply to all interruptible

transportation service performed by Transporter pursuant to

Service Agreements executed in accordance with Rate Schedule

IT-1 to Transporter's canceled FERC Gas Tariff, Original Volume

No. 1-B, as such Service Agreements existed on the date this

FERC Gas Tariff, Second Revised Volume No. 1, originally became

effective.

2. APPLICABILITY AND CHARACTER OF SERVICE

2.1 Transportation service hereunder is interruptible, and subject

to interruption at any time. Transportation service under this

Rate Schedule will be performed when Transporter has capacity

available to provide such transportation without detriment or

disadvantage to Transporter's firm Shippers.