Gas Transmission Northwest Corp.

Third Revised Volume No. 1-A

Effective Date: 04/30/2010, Docket: RP10-550-000, Status: Effective

First Revised Sheet No. 300 First Revised Sheet No. 300

Superseding: Original Sheet No. 300

FORM OF SERVICE AGREEMENT

APPLICABLE TO ELECTRONIC DATA INTERFACE

THIS ELECTRONIC DATA INTERCHANGE TRADING PARTNER AGREEMENT (the

"Agreement"), is made as of the __________ day of __________,

20___, by and between Gas Transmission Northwest Corporation, a

California corporation, with its principal office at 717 Texas Street,

Suite 2400, Houston, Texas 77002-2761 ("GTN"), and __________________,

a _______________, with its principal office at

________________________________ (the "User").

RECITALS

WHEREAS, the parties desire to facilitate transactions, reports

and other information exchanged ("Transactions") by

electronically transmitting and receiving data in agreed formats

(the "EDI Process") in substitution for on-line transmittal

and/or for conventional paper-based documents; and

WHEREAS, the parties desire to assure that such Transactions are

not legally invalid or unenforceable as a result of the use of

available electronic technologies for the mutual benefit of the

parties; and

WHEREAS, the parties desire to enter into this Agreement to

govern their relationship with respect to electronic data

interchange ("EDI") Transactions.

NOW THEREFORE, in consideration of the premises and covenants

herein contained, and for other good and valuable consideration,

the receipt and sufficiency of which are hereby acknowledged, the

parties, intending to be legally bound, hereby agree as follows:

(Continued)