Tres Palacios Gas Storage LLC

Original Volume No. 1

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Effective Date: 07/25/2009, Docket: RP09-260-000, Status: Effective

First Revised Sheet No. 206 First Revised Sheet No. 206

Superseding: Original Sheet No. 206

Exhibit A to the Firm Storage Service Agreement

between TRES PALACIOS and

____________________(Customer)

dated __________

Transaction Confirmation

Maximum Storage Quantity ("MDQ") __________ Dth

Maximum Daily Injection Quantity ("MDIQ") __________ Dth

Maximum Daily Withdrawal Quantity ("MDWQ") __________ Dth

Primary Receipt Point _______________________________*

Maximum Daily Receipt Quantity ("MDRQ") __________ Dth*

Primary Delivery Point ______________________________*

Maximum Daily Delivery Quantity ("MDDQ") __________ Dth*

____ Customer shall have the right to use secondary Receipt

and Delivery Points

Start Date ____________________

End Date ____________________

Storage Reservation Charge __________ $/Dth-mo

Withdrawal Reservation Charge __________ $/Dth-mo

Injection Reservation Charge __________ $/Dth-mo

Storage Injection Charge __________ $/Dth

Storage Withdrawal Charge __________ $/Dth

Fuel Reimbursement __________

* Add additional lines for multiple Receipt and/or Delivery

Points.

Customer:

Signature:_____________________________

Date:____________________

TRES PALACIOS' Approval:

Signature:_____________________________

Date:____________________

Note: TRES PALACIOS and Customer may enter into a transaction for

storage or hub services pursuant to the Transaction Confirmation

Procedure set forth at Section 34 of the General Terms and

Conditions of TRES PALACIOS' FERC Gas Tariff.