Tres Palacios Gas Storage LLC

Original Volume No. 1

Effective Date: 11/05/2009, Docket: RP10-33-000, Status: Effective

First Revised Sheet No. 54 First Revised Sheet No. 54

Superseding: Original Sheet No. 54

IW RATE SCHEDULE

INTERRUPTIBLE WHEELING SERVICE

(Continued)

6.2 TRES PALACIOS shall have the right to propose to FERC or

any other governing regulatory body such changes in its rates and

Agreement shall be deemed to include any changes which are made

effective pursuant to order or regulation or provisions of law,

without prejudice to Customer's right to protest the same;

provided, however, that any market-based rates negotiated between

TRES PALACIOS and its Customer(s) shall remain in effect during

the term of the Hub Services Agreement(s) specifying such rates.

7. CURTAILMENT

If, due to any cause whatsoever, TRES PALACIOS' capability to

receive or deliver quantities of Gas is impaired so that TRES

PALACIOS is unable to receive or deliver the quantities provided

for in its Storage Service Agreements with Customers for

Interruptible services, then capacity, withdrawals and/or

injections will be allocated according to the priority of service

as set forth in Section 5 of the General Terms and Conditions of

this FERC Gas Tariff.

8. GENERAL TERMS AND CONDITIONS

Applicable provisions of the General Terms and Conditions of this

FERC Gas Tariff, as such provisions may be amended from time to

time, are hereby incorporated by reference and made a part of this

IW Rate Schedule, where applicable, and shall supplement the terms

and conditions governing service rendered hereunder, as though

stated herein; provided, however, that in the event of any

inconsistency, the terms of this IW Rate Schedule shall control.