Puget Sound Energy, Inc.

Original Volume No. 1

Effective Date: 06/22/2007, Docket: RP07-462-000, Status: Effective

Original Sheet No. 128 Original Sheet No. 128 : Effective

H. WHEREAS, the Owners desire to amend the Agreement to reflect the

use of Zone 1 of the Storage Project as a collection area for gas that

has migrated from Zone 2 of the Storage Project, as certificated in

Docket No. CP06-465.

AGREEMENT:

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

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

1. Section 1.56 of the Agreement ("Storage Reservoir") shall be

amended by including at the end of that section, the following sentence:

"As used herein, references to the Zone 2 Reservoir and Zone 2

shall include the use of the Zone 1 Reservoir at the Storage Field

for purposes of collection and recycling of natural gas stored in

Zone 2 which has migrated to Zone 1."

2. Exhibits C, D, E and G of the Agreement are superceded by the

revised form of such Exhibits attached hereto.

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

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

4. 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/ Allison G. Bridges

Its: Vice President, Commercial Operations

PUGET SOUND ENERGY, INC.

By: /s/ Paul M. Wiegand

Its: Vice President

AVISTA CORPORATION

By: /s/ Robert H. Gruber

Its: Manager, Natural Gas Resources