Portland Natural Gas Transmission System

Second Revised Volume No. 1

Effective Date: 08/01/2010, Docket: RP10-885-000, Status: Effective

Original Sheet No. 580 Original Sheet No. 580

NOW, THEREFORE, in consideration of the mutual covenants and

agreements herein assumed, Transporter and Shipper agree as follows:

1. Shipper shall apply for or cause to be applied for and use

reasonable best efforts to obtain all of the agreements and governmental

authorizations or exemptions necessary to enable Shipper to deliver to and

receive from Transporter the transportation quantities specified below.

2. Subject to the conditions herein, Transporter hereby agrees to

provide to Shipper, and Shipper hereby agrees to accept, firm natural gas

transportation service on Transporter's System under Transporter's Rate

Schedule FT, providing for firm transportation from the receipt point(s) of

the quantities of natural gas specified below. Such firm transportation

service shall be provided for the term specified in Schedule 1. The

transportation service, unless otherwise agreed upon, will be provided at the

maximum applicable rate as approved by the FERC in the Tariff, as the Tariff

may be changed from time to time, subject to the rate discount provisions set

forth below.

ARTICLE I - SCOPE OF CONTRACT

1. On the Commencement Date and each Day thereafter on which Shipper

and Transporter schedule Gas for transportation hereunder, Shipper shall cause

the Scheduled Quantity, up to the Maximum Daily Quantity (MDQ), to be

delivered to Transporter at the Receipt Point(s).

2. On the Commencement Date and each Day thereafter, Transporter

shall make the Scheduled Quantity available to or on behalf of Shipper at the

Delivery Point(s) on a firm basis.

3. Shipper shall be solely responsible for securing faithful

performance by gas supplier(s) and/or any applicable upstream or downstream

shippers and transporters in all matters which may affect Transporter's

performance hereunder, and Transporter shall not be liable hereunder to

Shipper as a result of the failure of gas supplier(s) and/or any applicable

upstream or downstream shippers and transporters to so perform.