Bluewater Gas Storage, LLC

Original Volume No. 1

Effective Date: 12/01/2006, Docket: CP06-351-001, Status: Effective

Original Sheet No. 229 Original Sheet No. 229 : Effective

INTERRUPTIBLE HOURLY BALANCING SERVICE AGREEMENT

(For Use Under Rate Schedule IHBS)

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

and between BLUEWATER GAS STORAGE, LLC, a Delaware limited liability

company herein called "BLUEWATER," and _____________________, an

__________________, herein called "Customer," (each of BLUEWATER and

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

the following recitals and representations:

WHEREAS, BLUEWATER owns and operates an underground natural gas

storage facility known as the Bluewater Gas Storage facility,

located in Michigan, and is authorized to provide natural gas

storage and related services in interstate commerce by way of the

Bluewater Gas Storage facility; and

WHEREAS, Customer has requested that BLUEWATER provide certain

interruptible hourly balancing natural gas storage services for

Customer; and

WHEREAS, BLUEWATER has agreed to provide such interruptible

hourly balancing storage services for Customer subject to the

terms and conditions set forth in this Agreement.

NOW, THEREFORE, BLUEWATER and Customer agree as follows:

ARTICLE I - SCOPE OF AGREEMENT

Following the commencement of service hereunder, in accordance with

the terms of BLUEWATER's Rate Schedule IHBS, and of this Agreement,

BLUEWATER 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 Bluewater Gas Storage, LLC underground gas

storage facility located in Michigan, 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; and

BLUEWATER shall, for each hour during a Day, subject to maximum

hourly limit of _______Dth, receive or deliver at the Point(s) of

Receipt/Delivery designated by Customer hourly balancing

quantities of Gas which shall be the difference, on an hourly

basis, between (i) the injections to or withdrawals from

BLUEWATER's storage of Gas as nominated by Customer to meet

Customer's desired hourly pattern of deliveries at its delivery

point(s) on the Transporter's(s') pipeline system(s) and (ii)

Customer's ratable flow quantities on BLUEWATER (1/24 of Daily

nominated quantities).