Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 08/01/1997, Docket: RP97-410-000, Status: Effective

Fifth Revised Sheet No. 627 Fifth Revised Sheet No. 627 : Effective

Superseding: Fourth Revised Sheet No. 627

FORM OF SERVICE AGREEMENT

APPLICABLE TO RATE SCHEDULE FS-1 (Continued)

This Service Agreement, made and entered into as of _______________,

by and between WILLISTON BASIN INTERSTATE PIPELINE COMPANY, hereinafter

called "Transporter", and _______________________, hereinafter called

"Shipper".

WHEREAS, Transporter has available firm injection, withdrawal, and

storage capabilities at its aggregate storage facilities; and

WHEREAS, Shipper desires firm storage service from Transporter as

specified herein, pursuant to Subpart ______ (B or G) of Part 284 of the

FERC's Regulations; and

WHEREAS,

NOW, THEREFORE, for and in consideration of the premises and the

mutual covenants hereinafter contained, Transporter and Shipper agree as

follows:

Transporter agrees to provide firm storage service for Shipper

pursuant to Transporter's Rate Schedule FS-1 as specified below.

1. Maximum Storage Quantities. The daily Maximum Storage

Injection Quantities (MSIQ) of gas which can be injected into storage and

the daily Maximum Storage Deliverability Quantities (MSDQ) which can be

withdrawn from storage, each as adjusted pursuant to the Capacity

Adjustment Provision (CAP) (described in Subsection 1.47 of the General

Terms and Conditions of this Tariff), and up to the Maximum Storage

Capacity Quantity (MSCQ) and the maximum Firm Cycle Quantity (FCQ), each as

adjusted to reflect the weighted average of the actual Btu content of gas

held in storage for such Shipper, which can be injected and/or withdrawn

during the injection and/or withdrawal season, respectively, are specified

in Exhibit A hereto.

2. Authorized Overrun Quantities. Upon request of Shipper and at

Transporter's option, Transporter may inject or withdraw quantities of gas

for Shipper's account, on any day, in excess of Shipper's MSIQ and/or MSDQ,

specified in Exhibit A to this Service Agreement, each as adjusted pursuant

to the CAP. Such quantities shall be injected or withdrawn on an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 For such excess gas injected and/or withdrawn,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.