Puget Sound Energy, Inc.

Original Volume No. 1

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Effective Date: 01/03/2004, Docket: RP04-100-000, Status: Effective

Original Sheet No. 109 Original Sheet No. 109 : Effective

Exhibit C

(revised July 23, 2003, pursuant to Amendment No. 4)

to the

Jackson Prairie

Gas Storage Project Agreement

Certificated Characteristics and Capabilities

Characteristics and Capabilities of the Jackson Prairie Storage Project for

the 2003-2004 Storage Cycle and thereafter: *

Project Cushion Gas Requirement Not less than 19,548,006 Mcf

Zone 2 Not less than 15,548,006

Mcf

Zone 9 Not less than 4,000,000

Mcf

Project Working Gas Capacity Not more than 19,122,008 Mcf

Zone 2 Not more than 18,122,008

Mcf

Zone 9 Not more than 1,000,000

Mcf

Project Gas Capacity Not more than 39.4 Bcf

Zone 2 Not more than 34.4 Bcf

Zone 9 Not more than 5.0 Bcf

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.