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. 237E First Revised Sheet No. 237E

Superseding: Original Sheet No. 237-E

GENERAL TERMS AND CONDITIONS

(Continued)

15. DETERMINATION OF DELIVERIES AND IMBALANCES (Continued)

day period, any gas which was delivered by Transporter for which

equivalent volumes were not received by Transporter from Shipper shall

be paid for by Shipper at $5.00 per Dth. Shipper shall pay such amount

within 10 days after receipt of such bill. Any gas received by

Transporter in excess of that delivered for Shipper which remains in

Transporter's system at the end of the fifteen day period shall become

the property of Transporter at no cost to Transporter and free and clear

of any adverse claims related thereto.

15.12 Imbalances with Other Parties. Transporter shall not be

responsible for eliminating any imbalances in volumes transported that

accrue between Receiving Party or Shipper and any other party, including

without limitation any volume imbalances that accrue between local

distribution companies and specific end-users or between producers or

pipelines and local distribution companies or end-users. Furthermore,

Transporter shall not be obligated to adjust or deviate from its

standard operating and accounting procedures in order to alleviate such

imbalances.

15.13 Netting and Trading within Operational Impact Area. NAESB WGQ

Flowing Gas Related Standard 2.3.30 (Version 1.8) will apply and is

incorporated by reference.