Midwestern Gas Transmission Company

Third Revised Volume No. 1

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Effective Date: 03/06/2009, Docket: RP09-352-000, Status: Effective

Third Revised Sheet No. 90A Third Revised Sheet No. 90A

Superseding: Second Revised Sheet No. 90A

RATE SCHEDULE LMS-MA

LOAD MANAGEMENT SERVICE - DELIVERY POINTS

4. IMBALANCE NETTING AND TRADING

(a) Based upon the best information available, a Balancing Party shall take action to

correct any imbalances occurring during the month by making adjustments in

nominations, receipts or deliveries. If a Balancing Party fails to take such

corrective action, then Company may, upon 48 hours notice, adjust Balancing

Party's scheduled receipts and deliveries over the remainder of the calendar

month in order to maintain a balance of receipts, deliveries and nominations.

(b) Balancing Parties under this Rate Schedule and Supply Aggregators under Rate

Schedule SA will be allowed to trade imbalances occurring during the month with

other Parties that are subject to this Rate Schedule or Rate Schedule LMS-PA.

Mid-Month Trading

All imbalance trading occurring during the month that the imbalance(s) occurred

must be effected through the nomination of mid-month make-up gas quantities. Any

"receipt-to-delivery" imbalance trade may be effected by a Party nominating

transportation from a point covered on its Balancing Agreement or Rate

Schedule SA Agreement to a point on another Agreement where the trade will occur.

A "receipt-to-delivery" imbalance trade is defined as any imbalance trade between

a Party under this Rate Schedule and a Party under Rate Schedule LMS-PA whereby

the Party under this Rate Schedule is trading an excess of actual deliveries

relative to Scheduled Quantities with an excess of actual receipts relative to

Scheduled Quantities incurred by a Party under Rate Schedule LMS-PA.

End-of-Month Trading

Balancing Parties and Supply Aggregators will also be allowed to trade offsetting

imbalances in the month following the month during which the imbalance occurred;

provided that the Party notifies Company of the identities of the Parties

agreeing to the trade, and the gas quantities to be traded, no later than

seventeen Business Days after the end of the month during which the imbalances

occurred. For receipt-to-delivery imbalance trades after the month during which

the imbalances occurred, the Parties agreeing to the trade must notify Company of

the Party responsible for the transportation from point to point. If the Parties

do not notify Company of the Party responsible for transportation, Company will

hold the Party who traded the imbalance due Company responsible for the

applicable transportation charges. To facilitate end-of-month imbalance trading,

Company will provide for Parties to post their imbalances, and any information

relevant to the trading thereof, on the System.

For mid-month and end-of-month trading, transportation charges for receipt-to-

delivery imbalance trades will be based on the applicable maximum authorized

overrun rate associated with Company's Rate Schedule(s) FT-A, FT-B or FT-C.

When a netting and trading transaction results in an overpayment of

transportation charges, Company shall reimburse the affected Shipper the excess

transportation charges in the subsequent billing cycle.