Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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Effective Date: 08/06/1996, Docket: RP96-332-000, Status: Effective

Second Revised Sheet No. 315 Second Revised Sheet No. 315 : Effective

Superseding: Original Sheet No. 315

GENERAL TERMS AND CONDITIONS (Continued)

37. TAKE-OR-PAY BUYOUT AND BUYDOWN COST RECOVERY MECHANISM

(For Filings Submitted to FERC After November 1, 1990) (Continued)

transportation throughput is less than the total

throughput underlying the surcharge, Transporter shall

debit an amount to each of the subsequent annual

principal amounts equal to the difference in throughput

multiplied by the principal portion of the currently

effective throughput surcharge, divided by the number

of years remaining in the total recovery period, plus

applicable interest.

Transporter shall tender, as part of an Annual

Reconciliation filing, the throughput surcharge to be

assessed commencing the next July 1, reflecting such

recalculations, plus related interest calculated in

accordance with Section 154.501 of the FERC's

Regulations. The adjusted throughput surcharge

resulting from the Annual Reconciliation filing shall

be effective on July 1 following the filing of the

annual reconciliation. Such surcharge shall be

determined by dividing the next annual principal

amount, as adjusted, plus any adjustment to interest

for the prior period(s), plus applicable future

interest, by the effective total throughput applicable

to the next annual period.

Once a recovery period has been trued-up in an annual

reconciliation filing to include actual throughput

subject to the throughput surcharge, the throughput

surcharge for that same recovery period shall not be

subject to revision for a change in effective total

throughput.

Transporter shall bill the throughput surcharge

applicable to each total recovery period through the

end of that total recovery period, and thereafter

refund any overcollections or bill for any

undercollections of the throughput surcharge with

interest calculated in accordance with Section 154.501

of the FERC's Regulations. Each Shipper's share of

such refunds or additional billings shall be its pro

rata proportion of the total amount overcollected or

undercollected, as applicable, based on the ratio of