Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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

Seventh Revised Sheet No. 248B Seventh Revised Sheet No. 248B : Effective

Superseding: Sixth Revised Sheet No. 248B





15.6.3 Any Eligible Imbalance(s) which has not been traded as

of the close of business on the third (3rd) business day prior to

the end of the month in which the imbalance(s) is to be cleared

shall be cleared in accordance with Subsection 15.12. Any

remaining portion of the Imbalance Trade gas volumes not so

nominated and scheduled by month-end shall be corrected and

cashed-out in accordance with the procedures described in

Subsection 15.5.


15.6.4 Imbalance trades can only be withdrawn by the initiating

trader and only prior to the confirming trader's confirmation of

the trade. Imbalance trades are considered final when confirmed

by the confirming trader and effectuated by Transporter.


15.7 Imbalance Netting: For purposes of this Subsection 15.7,

Imbalance Netting shall be applicable to all imbalance gas originating

as described in Subsection 15.1 (Eligible Imbalances). Netting of

Eligible Imbalances shall include the summing of imbalances or the

offsetting of positive and negative imbalances on or across a shipper's

contracts. Shipper(s) shall submit requests for Imbalance Netting via

an acceptable electronic communication mechanism, as described in

Section 8 of these General Terms and Conditions. After validation of a

Shipper's Imbalance Netting request, Transporter shall notify Shipper,

assign and update the imbalance volumes between the appropriate

Shipper's Service Agreement(s). Shipper submitting requests for such

netting of Eligible Imbalances agrees to reimburse Transporter to the

extent that Transporter recovers less transportation revenue resulting

from such netting than would otherwise have been received.







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