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. 225 First Revised Sheet No. 225

Superseding: Original Sheet No. 225

Exhibit A to the Firm Loan Service Agreement

between TRES PALACIOS and

____________________(Customer)

Transaction Confirmation

Maximum Loan Quantity ("MLQ") __________ 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*

Withdrawal Period Start Date ____________________

Withdrawal Period End Date ____________________

Injection Period Start Date ____________________

Injection Period End Date ____________________

Firm Loan Reservation Charge __________ $/Dth-mo

Firm Loan Injection Charge __________ $/Dth

Firm Loan Withdrawal Charge __________ $/Dth

Fuel Reimbursement __________

* Add additional lines for multiple Receipt and/or Delivery

Points. Secondary

Point rights shall not apply to Firm Loan service.

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.