Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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Effective Date: 05/14/2010, Docket: RP10-602-000, Status: Effective

Fifth Revised Sheet No. 300 Fifth Revised Sheet No. 300

Superseding: Substitute Fourth Revised Sheet No. 300

GENERAL TERMS AND CONDITIONS (Continued)

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

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

before court(s) and/or arbitration proceedings as of March 31,

1989. Such payments shall also include known and measurable

buyout/buydown amounts for which a filing is submitted to FERC

prior to December 31, 1990 or such other later "sunset date" as

may be implemented. Transporter's monthly billings to its

customers shall contain, as applicable, a separately stated fixed

monthly surcharge and/or throughput surcharge providing for the

recovery of all or a portion of Transporter's buyout/buydown

costs, plus appropriate carrying charges. Carrying charges shall

be the quarterly interest rate published by the FERC and computed

in accordance with Section 154.501 of the FERC's Regulations.

36.2.3 Amortized Amounts - The amount of payments to

producer/suppliers subject to amortization shall be determined by

Transporter pursuant to order(s) or settlement(s) with respect to

the aforesaid gas purchase contracts which are or were the subject

of litigation before court(s) and/or arbitration proceedings as of

March 31, 1989 and other known and measurable amounts for which a

filing is submitted to FERC prior to December 31, 1990 or such

other later "sunset date" as may be implemented.

36.2.4 Throughput Surcharge - A throughput delivery surcharge

reflected on the Statement of Rates tariff sheet(s) contained in

Transporter's FERC Gas Tariff, Second Revised Volume No. 1.

36.2.5 Effective Total Throughput - The total annual

transportation throughput, excluding stop-in-time intermediate

receipt and/or delivery points, underlying Transporter's then

currently effective rates contained in Transporter's FERC Gas

Tariff, Second Revised Volume No. 1.

(The rest of this sheet has been intentionally left blank.)