Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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Effective Date: 03/23/2006, Docket: RP06-228-000, Status: Effective

Fourth Revised Sheet No. 232A Fourth Revised Sheet No. 232A : Effective

Superseding: Third Revised Sheet No. 232A

GENERAL TERMS AND CONDITIONS (Continued)

10. ALLOCATION OF UNCOMMITTED CAPACITY (Continued)

10.3.1 Bid(s) may be withdrawn any time during the bidding

period. However, once a bidding Shipper withdraws a bid, such

bidding Shipper shall not be permitted to resubmit any bid in

which the net present value is less than the net present value, as

determined in accordance with Subsection 10.4 hereof, of the

withdrawn bid.

10.3.2 Bid(s) may be modified to extend the termination date

and/or increase the requested capacity throughout the bid period.

10.4 Upon receipt of a request(s) and/or bid(s) for firm service,

Transporter will undertake the analysis described above in Subsection

10.1 to determine its ability to fulfill the request or bid without

detrimental operational impacts. As soon as practical, but no later

than the earlier of 8:30 a.m. (Central Clock Time) on the first (1st)

business day prior to the requested commencement of service or 8:30 a.m.

(Central Clock Time) on the sixth (6th) business day following the bid

period closing, Transporter will notify potential successful Shipper(s)

as determined in accordance with Subsection 10.4 herein.