Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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

Sixth Revised Sheet No. 251 Sixth Revised Sheet No. 251 : Effective

Superseding: Fifth Revised Sheet No. 251

GENERAL TERMS AND CONDITIONS (Continued)

15. BALANCING AND NOMINATION VARIANCE PROCEDURES (Continued)

15.14.5 Nomination Variance Charge Credits for nomination

variance charges incurred prior to the effectiveness of Order Nos.

637, et seq.: For Nomination Variance Charge Credits associated

with nomination variance charges incurred prior to the

effectiveness of Order Nos. 637, et seq., Transporter shall credit

to Qualifying Rate Schedule FT-1 and IT-1 Shipper(s) any finally

determined Nomination Variance Charges received from any of

Transporter's present and/or future Affiliates (Affiliates). For

purposes of this Subsection 15.14.5, Qualifying Rate Schedule FT-1

and IT-1 Shippers shall include those Shippers, other than the

Affiliates, who did not themselves incur a Nomination Variance

Charge obligation under Subsections 15.14.2, 15.14.3 or 15.14.4

during the month in which the Nomination Variance Charge

obligation(s) was incurred by the Affiliate(s). The portion of

any Nomination Variance Charges to be credited to each Qualifying

Shipper shall be based on the ratio of each Qualifying Shipper's

applicable monthly transportation delivery quantities to the total

of the Qualifying Shippers' monthly transportation delivery

quantities for the month in which the Nomination Variance Charge

obligation(s) is incurred by the Affiliate(s). Except as

specified in Subsection 15.14.5.1, the credit shall be applied to

each Qualifying Shipper's monthly bill issued for service rendered

during the month the Nomination Variance Charge obligation(s) was

paid by the Affiliate(s).

15.14.5.1 To the extent that credits otherwise would be

provided to Qualifying Rate Schedule FT-1 and IT-1 Shippers

pursuant to Subsection 15.14.5 based on a Rate Schedule IT-1

rate(s) in effect subject to refund, Transporter will

postpone such crediting until after a final order has been

issued approving the Rate Schedule IT-1 rate(s) to be

effective during the period the Nomination Variance Charge

Obligation was incurred by the Affiliate(s). Within thirty

(30) days of the issuance of a final order approving the

Rate Schedule IT-1 rate(s) to be effective during the period

the Nomination Variance Charge obligation was incurred by

the Affiliate(s), Williston Basin will calculate the

appropriate amounts to be credited using the final approved

Rate Schedule IT-1 rate(s) and refund such amounts, with

interest from the date credits otherwise