Portland Natural Gas Transmission System

Second Revised Volume No. 1

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

First Revised Sheet No. 560 First Revised Sheet No. 560

Superseding: Original Sheet No. 560

PRO FORMA

GAS TRANSPORTATION CONTRACT

FOR FT-FLEX LIMITED FIRM TRANSPORTATION SERVICE

This Gas Transportation Contract (Contract) is made as of the _____ Day of

_________________ by and between Portland Natural Gas Transmission System, a

Maine general partnership, herein Transporter and [name of Shipper] a [state]

[entity], herein Shipper, pursuant to the following recitals and

representations:

WHEREAS, Shipper intends to enter into natural gas supply arrangements,

including transportation upstream of Transporter's System, and to make

arrangements for the delivery of such gas supply for the account of Shipper to

the receipt point(s), and to make arrangements for the receipt and

transportation of such gas downstream of the delivery point(s) on

Transporter's System; and

WHEREAS, Shipper intends to apply for and, subject to the terms and conditions

set forth herein, receive and accept all necessary federal, provincial or

state regulatory authorization or exemptions in the United States and Canada

in order to transport and deliver gas for the account of Shipper from the

receipt point(s)and deliver such gas downstream or upstream of the delivery

point(s)on Transporter's System;

NOW, THEREFORE, in consideration of the mutual covenants and agreements herein

assumed, Transporter and Shipper agree as follows:

ARTICLE I - SCOPE OF CONTRACT

A. Transporter 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-FLEX. 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.