Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

Effective Date: 11/01/2009, Docket: RP09-1056-000, Status: Effective

First Revised Sheet No. 84 First Revised Sheet No. 84

Superseding: Original Sheet No. 84

RATE SCHEDULE LS-2F

Liquefaction-Storage Gas Service - Firm

(Continued)

7. LIQUEFACTION INTO STORAGE FOR SHIPPER'S ACCOUNT

During a liquefaction period, Shipper may nominate sufficient

quantities of gas to fill Shipper's Storage Capacity Volume. Such

nominations shall commence on April 1 and shall consist of uniform daily

quantities equal to 1/200th of Shipper's Nominated Storage Volume

(except for the last day of liquefaction) until Shipper's Storage

Capacity Balance is equal to Shipper's Nominated Storage Volume. In

addition, Transporter may schedule the liquefaction period and rate of

liquefaction to fit system operating conditions.

Transporter shall not be obligated to liquefy and store gas for

Shipper in excess of Shipper's Storage Capacity Volume.

Nominations shall be made by Shipper scheduling such tendered

volumes on any day as transportation volumes delivered under an executed

Service Agreement for liquefaction and storage.

Shipper may nominate gas for liquefaction and storage during a

Vaporization Period in replacement of gas vaporized during such

Vaporization Period; provided, however, the liquefaction of such gas

shall be at such times as may be agreed upon between Transporter and

Shipper.

8. VAPORIZATION FROM STORAGE AND DELIVERY TO SHIPPER

8.1 General Procedure. Shipper may nominate vaporization of gas on any

day during the Vaporization Period, specifying the quantity of gas it

desires vaporized under this Rate Schedule during such day. Transporter

shall vaporize and deliver for transportation the quantity of gas so

nominated out of Shipper's Storage Capacity Balance, subject to the

limitations set forth in this Rate Schedule.

8.2 Notice Required. The notice given by Shipper to Transporter for

vaporization on any day shall be prior to the commencement of such day;

provided, however, that commencement of actual delivery for

transportation shall be determined by system operating conditions.

Shipper may request a change in the daily quantity scheduled for