Pine Prairie Energy Center, LLC

Original Volume No. 1

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Effective Date: 09/01/2007, Docket: RP07-563-000, Status: Effective

Original Sheet No. 53 Original Sheet No. 53 : Effective

IB RATE SCHEDULE

INTERRUPTIBLE BALANCING SERVICE

(Continued)

4. INVOICE

Each invoice for Interruptible balancing service shall reflect

the applicable charges set forth under Section 3 of this Rate

Schedule at rates and terms set forth in Customer's Hub Services

Agreement.

5. TERM

The term for service under this Rate Schedule shall be as set

forth in Customer's Hub Services Agreement.

6. AUTHORIZATION, RATES, TERMS AND CHANGES

6.1 The Hub Services Agreement and the respective

obligations of the parties hereunder are subject to all valid

laws, orders, rules and regulations of duly constituted

authorities having jurisdiction, and are conditioned upon the

issuance, by FERC, and any state or local governmental agency

having jurisdiction, of requisite authorization for PPEC to

provide the balancing service contemplated hereby and to construct

and operate the facilities necessary to provide such balancing

service and for any connected pipeline to transport Gas to/from

the Point(s) of Receipt/Delivery necessary to effect the balancing

service provided for herein.

6.2 PPEC shall have the right to propose to FERC or any

other governing regulatory body such changes in its rates and

terms of service as it deems necessary, and the Hub Services

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

PPEC and its Customer(s) shall remain in effect during the term of

Customer's Hub Services Agreement(s) specifying such rates.

7. CURTAILMENT

If, due to any cause whatsoever, PPEC's capability to receive

or deliver quantities of Gas is impaired so that PPEC 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.