Puget Sound Energy, Inc.

Original Volume No. 1

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Effective Date: 06/03/2006, Docket: RP06-346-000, Status: Effective

Original Sheet No. 124 Original Sheet No. 124 : Effective

Exhibit C

(revised April 27, 2006, pursuant to Amendment No. 7)

to the

Jackson Prairie

Gas Storage Project Agreement

Certificated Characteristics and Capabilities

Characteristics and Capabilities of the Jackson Prairie Storage Project for

the 2006-2007 Storage Cycle and thereafter:*

Project Cushion Gas Requirement Not less than 21,019,789 Mcf

Zone 2 Not less than 17,019,789 Mcf

Zone 9 Not less than 4,000,000 Mcf

Project Working Gas Capacity Not more than 21,329,682 Mcf

Zone 2 Not more than 20,329,682 Mcf

Zone 9 Not more than 1,000,000 Mcf

Project Gas Capacity Not more than 42,349,471 Mcf

Zone 2 Not more than 37,349,471 Mcf

Zone 9 Not more than 5,000,000 Mcf

Project Firm Withdrawal Deliverability Not more than 850,000 Mcf Daily

Project Best Efforts Deliverability Not more than 150,000 Mcf Daily

* In addition to the stated quantities, the certificated Characteristics and

Capabilities of the Jackson Prairie Storage Project include any portions of

the expanded cushion and working gas capacities developed, month to month,

during the current water withdrawal/gas injection cycle of the 2002-2008

Expansion Project described in Exhibit G.