Puget Sound Energy, Inc.

Original Volume No. 1

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Effective Date: 11/01/1998, Docket: CP98-250-002, Status: Effective

Original Sheet No. 83 Original Sheet No. 83 : Effective

Exhibit B

(dated January 15, 1998)

to the

Jackson Prairie

Gas Storage Project Agreement

Weighted Shares of Capital Costs and

Weighted Shares of O&M Costs

Owner

Weighted Share

of Capital

Costs*

Weighted Share

of O&M Costs

Northwest

1/3

1/3

Water Power

1/3

1/3

PSE

1/3

1/3

PROJECT

1

1

* also used for allocation of gains and losses pursuant to Section

8.2