Midwestern Gas Transmission Company

Third Revised Volume No. 1

Effective Date: 05/10/2010, Docket: RP10-587-000, Status: Pending

Fourth Revised Sheet No. 5A Fourth Revised Sheet No. 5A

Superseding: Third Revised Sheet No. 5A

SUMMARY OF RATES AND CHARGES

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Base Adjustments

Tariff Under Rate After

Rate Schedule and Rate Rate Section 18 GT&C 5/ Adjustments

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TRANSPORTATION RATES (Per Dekatherms) 1/

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FT-D

Monthly Demand:

Maximum $2.0600 $2.0600

Minimum $0.0000 $0.0000

Daily Demand: 2/

Maximum $0.0677 $0.0677

Minimum $0.0000 $0.0000

Commodity Rate:

Maximum $0.0009 $0.0019 $0.0028

Minimum $0.0009 $0.0019 $0.0028

FT-GS

Maximum $0.1705 $0.0019 $0.1724

Minimum $0.0009 $0.0019 $0.0028

IT - Mainline 3/

Maximum $0.0687 $0.0019 $0.0706

Minimum $0.0009 $0.0019 $0.0028

IT - Eastern Mainline 3/

Maximum $0.0993 $0.0019 $0.1012

Minimum $0.0000 $0.0019 $0.0019

Fuel Retention and Loss Quantity 4/ 1.00%

1/ Transportation rates apply to forward hauls, backhauls and exchanges.

2/ The Maximum Volumetric Firm Rate for Capacity Release is the equivalent of the 100% load

factor rate for Rate Schedule FT-D.

3/ If an IT Shipper nominates a quantity of gas which includes a Receipt Point or Delivery Point

on the Mainline and a Receipt Point or Delivery Point on the Eastern Mainline, such quantity

of gas shall be subject to the sum of the Rate Schedule IT - Mainline Maximum Rate and the

Rate Schedule IT - Eastern Mainline Maximum Rate, subject to Section 27 of the General Terms

and Conditions of Company's FERC Gas Tariff, in addition to the Fuel Retention and Loss

Quantity.

4/ The Fuel Retention and Loss Quantity applies to all transportation rate schedules except for

service rendered entirely by displacement for which a 0.5 percent Loss Quantity shall apply,

and except for service where both the receipt and delivery points are the same for which no

Fuel Retention and Loss Quantity shall apply and subject to the provisions of Subsection

3.6.9 of the General Terms and Conditions of Company's FERC Gas Tariff.

5/ Applies only to physical deliveries.