Portland Natural Gas Transmission System

Second Revised Volume No. 1

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Effective Date: 09/01/2006, Docket: RP06-449-000, Status: Effective

Original Sheet No. 525 Original Sheet No. 525 : Effective

IN WITNESS WHEREOF, the parties hereto have caused this Master Capacity

Release Agreement to be duly executed in several counterparts by their proper

officers thereunto duly authorized, as of the date first hereinabove written.

ATTEST: PORTLAND NATURAL GAS TRANSMISSION SYSTEM

__________________ By______________________________________

ATTEST: [NAME OF RELEASING SHIPPER]

_________________ By