Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

Effective Date: 01/31/2008, Docket: RP08-130-000, Status: Effective

Original Sheet No. 83 Original Sheet No. 83 : Effective

RATE SCHEDULE LS-2F

Liquefaction-Storage Gas Service - Firm

(Continued)

6. DEFINITIONS

6.1 Storage Demand Volume. The Storage Demand Volume shall be the

largest number of Dth Transporter is obligated to vaporize for, and

Shipper is entitled to receive from, Transporter's liquefied natural gas

storage plant under this Rate Schedule on any one day, subject to the

limitations described in Section 8 of this Rate Schedule, and shall be

specified in the executed Service Agreement between Transporter and

Shipper. Transporter's service obligation is limited to Shipper's

Storage Demand as adjusted for any released capacity pursuant to Section

22 of the General Terms and Conditions.

6.2 Storage Capacity Volume. The Storage Capacity Volume shall be the

maximum quantity of gas in Dth which Transporter is obligated to liquefy

and store in liquid form for Shipper's account and shall be specified in

the executed Service Agreement between Transporter and Shipper.

Transporter's service obligation is limited to Shipper's Storage

Capacity as adjusted for any released capacity pursuant to Section 22 of

the General Terms and Conditions.

6.3 Liquefaction Period. The Liquefaction Period shall be the seven

consecutive months beginning on April 1 of any year and extending

through the next succeeding October 31.

6.4 Vaporization Period. The Vaporization Period shall be the five

consecutive months beginning on November 1 of any year and extending

through the next succeeding March 31.

6.5 Storage Capacity Balance. Shipper's Storage Capacity Balance at

any particular time shall be the quantity of gas in storage in liquid

form for Shipper at such time.

6.6 Nominated Storage Volume. Shipper's Nominated Storage Volume shall

be the quantity of gas in Dth, up to Shipper's Storage Capacity Volume,

which Shipper nominates to have liquefied and stored in liquid form by

Transporter for Shipper's account and shall be provided to Transporter

in writing on or before April 1 of each year. In the event that Shipper

does not submit a storage volume nomination by April 1, Shipper's

Nominated Storage Volume for the Liquefaction Period shall be Shipper's

Storage Capacity Volume. Shipper, upon ten (10) days written notice to

Transporter, may elect to change its Nominated Storage Volume during the

liquefaction period. Such change shall not reduce the Nominated Storage

Volume below Shipper's Storage Capacity Balance at the time of election.