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. 224 Original Sheet No. 224 : Effective

INTERRUPTIBLE STORAGE SERVICE AGREEMENT

(For Use Under Rate Schedule ISS)

This Agreement is made as of the _______day of _________, ____, by

and between PINE PRAIRIE ENERGY CENTER, LLC, a Delaware limited

liability company herein called "PPEC," and _____________________,

an __________________, herein called "Customer," (each of PPEC and

Customer, a "Party," and collectively, the "Parties"), pursuant to

the following recitals and representations:

WHEREAS, PPEC owns and operates an underground natural gas storage

facility known as the Pine Prairie Energy Center, located in

Louisiana, and is authorized to provide natural gas storage and

related services in interstate commerce by way of the Pine Prairie

Energy Center; and

WHEREAS, Customer has requested that PPEC provide certain

interruptible natural gas storage services for Customer; and

WHEREAS, PPEC has agreed to provide such interruptible storage

services for Customer subject to the terms and conditions set

forth in this Agreement.

NOW, THEREFORE, PPEC and Customer agree as follows:

ARTICLE I - SCOPE OF AGREEMENT

Following the commencement of service hereunder, in accordance

with the terms of PPEC's Rate Schedule ISS, and of this Agreement,

PPEC shall receive on any Day for injection into storage for

Customer's account a quantity of Gas up to Customer's Maximum

Daily Injection Quantity of _____ Dth, shall store quantities of

Gas so injected in the Pine Prairie Energy Center, LLC underground

gas storage facility located in Louisiana, up to a Maximum Storage

Quantity of ___ Dth (on a cumulative basis) and on demand on any

Day shall withdraw from Customer's Storage Inventory and deliver

to Customer a quantity of Gas up to Customer's Maximum Daily

Withdrawal Quantity of ____Dth.

ARTICLE II - POINTS OF RECEIPT AND DELIVERY

The point(s) at which the Gas is to be tendered by Customer to

PPEC under this Agreement shall be any of the Point(s) of Receipt

as posted on PPEC's Internet Web Site.

The point(s) at which the Gas is to be tendered by PPEC to

Customer under this Agreement shall be any of the Point(s) of

Delivery as posted on PPEC's Internet Web Site.