Trunkline Gas Company, LLC

Third Revised Volume No. 1

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Effective Date: 06/13/2010, Docket: RP10-731-000, Status: Effective

Second Revised Sheet No. 528 Second Revised Sheet No. 528

Superseding: First Revised Sheet No. 528

OPERATIONAL BALANCING AGREEMENT

FORM OF SERVICE AGREEMENT

CONTRACT NO. __________

This Operational Balancing Agreement (this "Agreement") is made

and entered into as of this ____ day of __________________, _______, by

and between Trunkline Gas Company, LLC ("Trunkline")and__________________

_______________________________________ ("OBA Party") (individually

referred to herein as "Party" and collectively referred to herein as the

"Parties").

W I T N E S S E T H

WHEREAS, the Parties operate certain pipeline facilities which

interconnect with Trunkline at the Point(s) of Receipt or Point(s) of

Delivery specified on Exhibit A (the "Interconnection Point"); and

WHEREAS, the Parties have entered into one or more transportation

agreements with various shippers (the "Shippers") whereby one of the

Parties either receives Gas which the Shippers cause to be delivered at

the Interconnection Point or delivers Gas which the Shippers cause to be

received at the Interconnection Point; and

WHEREAS, from time to time the aggregate Quantity of Gas delivered

to or by the Parties at the Interconnection Point is greater or less

than the aggregate Quantity of Gas nominated by the Shippers and

confirmed by the Parties, resulting in the inadvertent overdelivery or

underdelivery of Gas by one Party to the other Party relative to the

Shippers' nominated Quantities; and

WHEREAS, the Parties desire to enter into this Agreement pursuant

to Section 7 of the General Terms and Conditions of Trunkline's FERC Gas

Tariff, Third Revised Volume No. 1 (the "Tariff") in order to minimize

operational conflicts at the Interconnection Point with respect to the

delivery of Gas to and from Trunkline's facilities;

NOW, THEREFORE, in consideration of the mutual covenants and

provisions herein contained and subject to all of the terms, provisions

and conditions herein set forth, the Parties do hereby agree as follows:

ARTICLE 1

DEFINITIONS

1.1 The definitions of capitalized terms used herein shall have

the meaning set forth in the Tariff unless otherwise defined in this

Agreement.