Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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

Seventh Revised Sheet No. 249 Seventh Revised Sheet No. 249 : Effective

Superseding: Sixth Revised Sheet No. 249

GENERAL TERMS AND CONDITIONS (Continued)

15. BALANCING AND NOMINATION VARIANCE PROCEDURES (Continued)

15.12 Nomination and scheduling of imbalance gas: Shipper shall

nominate and schedule the gas necessary to clear imbalances. Such gas

shall be scheduled last on the system and scheduled and interrupted on a

pro rata basis in accordance with Sections 9 and 13.

15.13 Balancing upon termination: Upon the termination of a Service

Agreement, any imbalance shall be eliminated by the delivery of gas, but

in no event shall such curing period go beyond the month end after

notification of such imbalance(s). Upon expiration of this curing

period, any remaining imbalances shall be corrected in accordance with

Subsection 15.5.

15.14 Nomination Variance Penalties

15.14.1 Nomination Variance Penalties will only apply to any

affected receipt(s) or delivery point(s) during times when the

receipt point(s), delivery point(s), and/or associated line

section or subsystem is in allocation and/or when the receipt

point(s), delivery point(s), and/or associated line section, or

subsystem has been interrupted and/or a situation, as described in

Subsection 16.2 of these General Terms and Conditions, exists at

the receipt point(s), delivery point(s), and/or associated line

section, or subsystem. Transporter will notify affected Shippers

during the scheduling process, as described in Section 9 of these

General Terms and Conditions, of such allocation, interruption or

critical situation by an acceptable electronic communication

mechanism.

15.14.2 Nomination Variance Penalties for Points Where

Facilities Exist to Measure Service on a Daily Basis: Transporter

shall impose nomination variance penalties on a receipt and/or

delivery point basis for actual point total daily transportation

deliveries or receipts which deviate from point total scheduled