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. 93 First Revised Sheet No. 93

Superseding: Original Sheet No. 93

RATE SCHEDULE LS-2I

Liquefaction-Storage Gas Service - Interruptible

(Continued)

6. LIQUEFACTION INTO STORAGE FOR SHIPPER'S ACCOUNT (Continued)

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.

The tender by Shipper to Transporter 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, subject to Transporter's obligations to provide firm storage

services under Rate Schedules LS-1 and LS-2F.

7. VAPORIZATION FROM STORAGE AND DELIVERY TO SHIPPER

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

day during the Vaporization Period, specifying the volume of gas.

Transporter will schedule the volume of gas so nominated out of

Shipper's Storage Capacity Balance, subject to the limitations set

forth in this Rate Schedule and subject to Transporter's obligations to

provide firm storage service under Rate Schedules LS-1 and LS-2F.