Liberty Gas Storage, LLC

Original Volume No. 1

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Effective Date: 04/15/2007, Docket: RP07-357-000, Status: Effective

Original Sheet No. 40 Original Sheet No. 40 : Effective

IBT RATE SCHEDULE INTERRUPTIBLE IMBALANCE TRADING SERVICE

(Continued)

Customer shall be permitted to combine the Interruptible imbalance trading

service available under this Rate Schedule with any service available under any

other Rate Schedule set forth in this FERC Gas Tariff; provided, however, that

such combined services shall be subject to Section 5 of the General Terms and

Conditions of this FERC Gas Tariff; and, provided, further, that priority for

each service shall be determined by the respective priority of that service as

set forth in Section 5 of the General Terms and Conditions of this FERC Gas

Tariff.

3. RATES AND CHARGES

Customer shall pay rates and charges for Interruptible imbalance trading under

this Rate Schedule including the applicable imbalance trading rate components

set forth in the IBT Rate Statement and as described below:

(a) Interruptible Imbalance Trading Charge. A charge for each Dth

scheduled and confirmed with Liberty as an imbalance trade, including

imbalance quantities traded between Customers.

(b) Fuel Reimbursement. No fuel is required to perform Liberty's imbalance

trading service.

(c) Regulatory Fees and Charges. Customer shall reimburse Liberty for all

fees and charges, as required by the Commission or any other regulatory body,

that are related to service provided under this Rate Schedule, as set forth in

Customer's Hub Services Agreement.

(d) Taxes. Customer shall reimburse Liberty for all applicable taxes as

may be assessed

Liberty, as set forth in Exhibit B of Customer's Hub Services Agreement.

4. INVOICE

Each invoice for Interruptible imbalance trading service shall reflect the

applicable charges set forth under Section 3 of this Rate Schedule at rates and

terms set forth in Exhibit B of Customer's Hub Services Agreement.

Agreement.

5. TERM

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

B of Customer's executed Hub Services Agreement.