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. 100 Original Sheet No. 100 : Effective

H. WHEREAS, the Owners desire to amend Exhibit F to include a

footnote clarifying that expansion working gas inventory developed

during the current expansion cycle will be available for use

during the current expansion cycle.

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 Exhibits C, D, E, F and G of the Agreement are superceded by the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 CORPORATION

By: /s/ Edward Brewer

Its: Director, Marketing Services

PUGET SOUND ENERGY, INC.

By: /s/ W. A. Gaines

Its: Vice President, Energy Supply

AVISTA CORPORATION

By: /s/ Gary E. Ely

Its: Chairman, President & CEO