Puget Sound Energy, Inc.

Original Volume No. 1

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Effective Date: 11/01/1999, Docket: CP98-250-003, Status: Effective

Original Sheet No. 89 Original Sheet No. 89 : Effective

Agreement

The Owners therefore agree as follows:

1. Upon completion of the Expansion Work, Exhibits A, C, E and F to the Agreement shall be revised and the form of such Exhibits attached hereto shall be effective.

IN WITNESS WHEREOF, the parties hereto have caused this instrument to be executed in triplicate originals, as of the day and year first above set forth.

Owner:

Attest:

NORTHWEST PIPELINE CORPORATION

By /s/ Larry E. Larsen

Title VP Customer Services & Rates

Owner:

Attest:

THE WASHINGTON WATER POWER COMPANY

By /s/ Don Kopczynski

Title Manager

Owner and

Project Operator:

Attest:

PUGET SOUND ENERGY, INC.

By /s/ William A. Gaines

Title Vice President Energy Supply