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. 135 Original Sheet No. 135

AGREEMENT:

NOW, THEREFORE, in consideration of the premises and mutual covenants

contained herein, Northwest, Puget and Avista agree as follows:

1. Exhibits C, D, E and F of the Agreement are superceded by the

revised form of such Exhibits attached hereto.

2. This Amendment shall be binding upon and inure to the benefit of

the Owners hereto and any successors or assigns of such Owners.

3. This Amendment may be executed in any number of counterparts.

IN WITNESS WHEREOF, the Owners hereto have executed three

duplicate originals of this Amendment as of the date and year

first written above.

NORTHWEST PIPELINE GP

By: /s/ Edward Brewer

Its: Director, Marketing Services

PUGET SOUND ENERGY, INC.

By: /s/ Clay Riding

Its: Director, Gas Supply

AVISTA CORPORATION

By: /s/ Robert Gruber

Its: Manager, Natural Gas Resources