Columbia Gas Transmission LLC

Third Revised Volume No. 1

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Effective Date: 04/22/2009, Docket: RP09-468-000, Status: Effective

Original Sheet No. 173 Original Sheet No. 173

ISS-M RATE SCHEDULE

INTERRUPTIBLE STORAGE SERVICE WITH MARKET-BASED RATES (Cont'd)

3. INTERRUPTIBLE INJECTIONS INTO STORAGE

(a) Shipper will be responsible for arranging transportation of gas to the storage

injection point. Nominations designated for delivery to "ISS-M Storage" under those Rate

Schedules will be deemed to be nominations for injections under this ISS-M Rate Schedule.

(b) Transporter will not be obligated: (i) on any Day to inject gas into storage for

Shipper's account in excess of Shipper's MDIQ; or (ii) in the aggregate to store more than

Shipper's ISQ.

4. INTERRUPTIBLE WITHDRAWALS FROM STORAGE

(a) Shipper will be responsible for arranging transportation of gas from the storage

withdrawal point. Nominations designated for delivery from "ISS-M Storage" under those Rate

Schedules will be deemed to be nominations for withdrawals under this ISS-M Rate Schedule.

(b) Transporter will not be obligated to withdraw and deliver gas to or for the account

of Shipper in excess of the total amount in inventory for Shipper's account.

(c) All gas injected into storage for Shipper's account under this Rate Schedule must

be withdrawn by Shipper's Final Withdrawal Date, provided that this Final Withdrawal Date will be

extended one Day for each Day, during the 30 Days preceding Shipper's Final Withdrawal Date, that

Shipper's ISS-M withdrawals are interrupted by Transporter. Shipper may withdraw gas from the

first Day following Shipper's Injection Month through Shipper's Final Withdrawal Date.

5. RATE

(a) The applicable rates for service under this Rate Schedule will be a negotiated

market-based rate as provided in Shipper's ISS-M Service Agreement.

(b) From the quantities delivered into storage for Shipper, Transporter will retain the

Storage Gas Loss Retainage Percentage specified in the currently effective Tariff, unless

otherwise negotiated by Transporter and Shipper and specified in Shipper's ISS-M Service

Agreement. That percentage will be subject to adjustment in accordance with Section 35

(Retainage Adjustment Mechanism) of the General Terms and Conditions. The Storage Gas Loss

Retainage Percentage applicable to Rate Schedule ISS-M will be calculated separately in

Transporter's annual Retainage Adjustment Mechanism filings.

(c) Transporter will be responsible for any loss, cost, or expense arising from any

loss of Shipper's gas in Transporter's storage that results from Transporter's negligence or

failure to exercise due diligence. Notwithstanding the provisions in Section 22 (Possession of

Gas) of the General Terms and Conditions, Shipper will be responsible for obtaining its own

insurance for any gas in storage, and will hold Transporter harmless from any loss, cost, or

expense arising from any loss of storage gas that results from a force majeure event or that is

not the result of Transporter's negligence or failure to exercise due diligence.

6. PENALTIES

(a) If Shipper fails to comply with an interruption order issued by Transporter

pursuant to this Rate Schedule or Section 16 (Interruptions of Service) of the General Terms and

Conditions and thereby causes injections or withdrawals in excess of 103 percent of the lowered

MDIQ or scheduled withdrawal quantity set by Transporter's interruption order (Lowered Quantity),

Shipper will be assessed and pay a penalty of $10.00 per Dth for quantities taken or tendered in

excess of 103 percent of the Lowered Quantity.

(b) If Shipper fails to comply with an operational flow order issued by Transporter

pursuant to Section 17 (Operational Flow Orders) of the General Terms and Conditions, a penalty

of $5.00 per Dth per day will be assessed to Shipper for all quantities in violation of that

operational flow order.