Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

Effective Date: 02/20/2009, Docket: RP09-227-000, Status: Effective

Second Revised Sheet No. 81 Second Revised Sheet No. 81

Superseding: First Revised Sheet No. 81

RATE SCHEDULE LS-2F

Liquefaction-Storage Gas Service - Firm (Continued)

3. MONTHLY RATE (Continued)

3.1 Storage Service. The sum of (a) through (d) below:

(a) Demand Charge: The sum of the daily product of Shipper's

Storage Demand and the Demand Charge.

(b) Capacity Demand Charge: The sum of the daily product of

Shipper's Storage Capacity and the Capacity Demand Charge.

Shipper's account during the month.

(d) Vaporization Charge: Per Dth of gas vaporized and scheduled

for delivery to Shipper during the month.

The unit rates shall be those as set forth from time to time in the

currently effective Sheet No. 8.1 of this Tariff.

3.2 Charges for Capacity Release Service: The rates for capacity

release service are set forth in Sheet No. 5. See Section 22 of the

General Terms and Conditions for information about rates for capacity

release service, including information about acceptable bids. In the

event of a base tariff maximum and/or minimum rate change, wherein the

Replacement Shipper has not agreed to pay the maximum base tariff rate

or a percentage of the maximum base tariff rate (as it may change from

time-to-time), the Replacement Shipper will be obligated to pay:

(a) for capacity release transactions that are subject to the

maximum base tariff rate pursuant to FERC regulations: the lesser

of the awarded bid rate and the new maximum base tariff rate

unless the awarded bid rate is less than the new minimum rate, in

which case the new minimum rate will apply for the remaining term

of the release.

(b) for capacity release transactions that are not subject to the

maximum base tariff rate pursuant to FERC regulations: the greater

of the minimum base tariff rate and the awarded bid rate for the

remaining term of the release.