Puget Sound Energy, Inc.

Original Volume No. 1

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Effective Date: 09/30/2008, Docket: RP08-597-000, Status: Effective

Original Sheet No. 137 Original Sheet No. 137

Exhibit D

(revised August 29, 2008 pursuant to Amendment No. 9)

to the

Jackson Prairie

Gas Storage Project Agreement

Owner's Shares of Storage Service Rights

Owner Firm Injection Capability Firm Withdrawal

Share Deliverability Share

Northwest 1/3 1/3

Avista 1/3 1/3

PSE 1/3 1/3

PROJECT 1 1

Best Efforts Withdrawal Firm Working Gas Capacity *

Owner Deliverability Share Share

Northwest 1/3 0.3212

Avista 1/3 0.3576

PSE 1/3 0.3212

PROJECT 1 1

Owner Cushion Gas Requirement *

Share

Northwest 0.32462

Avista 0.35076

PSE 0.32462

PROJECT 1

* The Owner's Shares are the stated shares adjusted, as necessary, to reflect

the respective participation levels by the Owners in the expanded cushion and

working gas capacities developed, month to month, during the current water

withdrawal/gas injection cycle of the Capacity Expansion Project described in

Exhibit G.