Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

Effective Date: 08/01/2009, Docket: RP09-607-000, Status: Effective

First Revised Sheet No. 231 First Revised Sheet No. 231

Superseding: Original Sheet No. 231

GENERAL TERMS AND CONDITIONS

(Continued)

14. OPERATING CONDITIONS (Continued)

14.12 Fuel Gas Reimbursement. NAESB WGQ Nominations Related Standards

1.3.15, 1.3.16 and 1.3.28 through 1.3.31 (Version 1.8) will apply and

are incorporated by reference.

In addition to the payments for transportation and storage,

Shipper will reimburse Transporter for Shipper's pro rata share of gas

used for fuel, including lost or gained and unaccounted-for gas, based

on a fuel use requirements factor (Factor) as set forth on Sheet No. 14.

The Factor for Rate Schedules TF-1, TF-2, TI-1 and DEX-1 (Transportation

Rate Schedules) and the Factor(s) for Rate Schedules TFL-1 and TIL-1

(Lateral Rate Schedules) will be determined semi-annually to become

effective on April 1 and on October 1 of each year. A separate Factor

will be determined for each Designated Lateral under the Lateral Rate

Schedules. The Factor for Rate Schedules SGS-2F and SGS-2I,

(Underground Storage Rate Schedules) and Rate Schedules LS-1, LS-2F and

LS-2I (LNG Storage Rate Schedules) will be determined annually to become

effective on April 1 of each year. Fuel usage and lost or gained and

unaccounted-for volumes incurred at the Jackson Prairie Storage Project

attributable to system balancing requirements will be included in the

Factor for the Transportation Rate Schedules. The Factor for the

Transportation Rate Schedules and the Factor(s) for the Lateral Rate

Schedules may also include a component for volumetric increases or

decreases to Transporter's system occurring during the prior calendar

year as described below. The Factors will be calculated as follows:

(a) Projected fuel usage volumes will be determined for services

under the Transportation Rate Schedules and for services on each

separate Designated Lateral under the Lateral Rate Schedules for

the upcoming six months beginning April 1 or October 1. Projected

fuel usage will be determined for services under the Underground

Storage Rate Schedules and for services under the LNG Storage Rate

Schedules for the upcoming twelve months beginning April 1.

(b) Projected lost or gained and unaccounted-for volumes will be

determined for services under the Transportation Rate Schedules

and for services on each separate Designated Lateral under the

Lateral Rate Schedules for the upcoming six months beginning April

1 or October 1. Projected lost or gained and unaccounted-for

volumes will be determined for services under the Underground

Storage Rate Schedules and for services under the LNG Storage Rate

Schedules for the upcoming twelve months beginning April 1.