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. 38 Original Sheet No. 38 : Effective

IP RATE SCHEDULE

INTERRUPTIBLE PARKING SERVICE

1. AVAILABILITY

This Rate Schedule is available to any Customer for the

purchase of Interruptible parking service from PPEC, provided

that:

(a) PPEC has determined that it has sufficient

operationally available Interruptible storage capacity, injection

or withdrawal capacity to perform the parking service Customer has

requested;

(b) PPEC has determined that the parking service

Customer has requested will not interfere with efficient operation

of its system or with Firm Storage Services;

(c) Customer and PPEC have executed an Interruptible

Parking Service Agreement under this Rate Schedule;

(d) Customer accepts responsibility for arranging any

transportation service required for utilization of the parking

service provided under this Rate Schedule; and

(e) Service under this Rate Schedule may not be

available to the extent that PPEC would be required to construct,

modify, expand or acquire any facilities to enable PPEC to perform

the requested services.

2. APPLICABILITY AND CHARACTER OF SERVICE

This Rate Schedule shall apply to all Interruptible parking

service rendered by PPEC to Customer through use of PPEC's storage

facility located in Louisiana pursuant to an executed

Interruptible Parking Service Agreement.

Interruptible parking service rendered by PPEC to Customer

under this Rate Schedule shall consist of the receipt, injection,

storage, and withdrawal and delivery of Customer's Gas, on an

Interruptible basis, by PPEC. Service under this Rate Schedule

includes:

(a) The receipt on any Day and injection into storage

of Customer's Gas per Customer's nomination up to the Maximum

Daily Injection Quantity ("MDIQ") stated in Customer's

Interruptible Parking Service Agreement, provided that all Firm

Storage Service nominations for injection have been satisfied,

Customer's Park Quantity is less than the Maximum Park Quantity

set forth in Customer's Interruptible Parking Service Agreement,

Customer delivers the nominated quantity plus Fuel Reimbursement

to the Point(s) of Receipt, and Customer's Park Balance has not

exceeded Customer's Maximum Park Quantity;