Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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Effective Date: 08/04/2006, Docket: RP06-427-000, Status: Effective

Third Revised Sheet No. 629 Third Revised Sheet No. 629 : Effective

Superseding: Second Revised Sheet No. 629





8. Termination Date. This Service Agreement shall continue in full

force and effect for a term ending (specific date or term)___________________,

unless Transporter terminates service prior to that date pursuant to the

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

other applicable authority.


9. Termination Obligations. Termination of this Service Agreement

shall not relieve Transporter and Shipper of the obligation to effectuate a

zero storage balance hereunder or Shipper of the obligation to pay money due

hereunder to Transporter for services rendered.


10. Cancellation of Prior Contracts. When this Service Agreement

becomes effective, it shall supersede and cancel the following contract(s)

between the Parties hereto:


11. Injections: The dkt of gas injected into storage under Rate

Schedule FS-1 will be based on the quantity of gas delivered to Transporter's

aggregate storage facilities. The dry dkt injected into aggregate storage

will be calculated using the weighted average of daily measured Btu content at

Transporter's aggregate storage facilities.


12. Withdrawals: Withdrawals from storage under Rate Schedule FS-1

will be based on the actual dkt withdrawn from aggregate storage. The

corresponding Mcf and equivalent dkt volume withdrawn from aggregate storage

will be calculated using Shipper's rolling weighted average Btu's of gas in

storage at the time of withdrawal.


13. Storage Records: A single storage account for each Shipper will

be maintained detailing total injections, withdrawals and storage balances in

Mcf equivalent dkt and dkt for all gas that is the subject of this Service




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