Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 10/01/2002, Docket: RP02-483-000, Status: Effective

Third Revised Sheet No. 248D Third Revised Sheet No. 248D : Effective

Superseding: Substitute Second Revised Sheet No. 248D

GENERAL TERMS AND CONDITIONS (Continued)

15. BALANCING AND NOMINATION VARIANCE PROCEDURES (Continued)

period, any remaining portion of the netted imbalance gas volumes

not so nominated and scheduled shall be corrected and cashed out

in accordance with the procedures described in Subsection 15.5.

15.8 Transporter shall not be responsible for damages that result

from any interruption in Shipper's service, including where the gas to

be traded and/or netted, as herein described in Subsections 15.6 and

15.7, cannot be scheduled and/or transported, and the affected Shipper

shall indemnify Transporter against any claims of responsibility.

15.9 Imbalance Posting: Shipper will authorize the posting of

Eligible Imbalances via an electronic communication mechanism, as

described in Section 8 of these General Terms and Conditions.

Authorizations to post imbalances that are received by Transporter by

11:45 a.m. should be effective by 8:00 a.m. the next business day

(central clock time). Imbalances previously authorized for posting

should be posted on or before the ninth business day of the month.

Transporter should not be required to post zero imbalances.

15.10 Balancing obligations: Transporter shall, to the extent

practicable, deliver quantities of gas for Shipper's account

concurrently with the receipt of such quantities from Shipper. At no

time shall Transporter be required to receive quantities for Shipper's

account in excess of the quantities Shipper or Shipper's designee will

take delivery of at the point(s) of delivery on a concurrent basis.

15.11 Imbalances with other parties: Transporter shall not be

responsible for eliminating any imbalances between Shipper and any third

party, including imbalances between local distribution companies and

specific end users. Furthermore, Transporter shall not be obligated to

deviate from its standard operating and accounting procedures in order

to reduce or eliminate any such imbalances.

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