Southern Natural Gas Company

Seventh Revised Volume No. 1

Effective Date: 03/01/2010, Docket: RP09-427-003, Status: Effective

Ninth Revised Sheet No. 20 Ninth Revised Sheet No. 20

Superseding: Substitute Eighth Revised Sheet No. 20

CONTRACT STORAGE SERVICE (CSS) 1/

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Maximum Minimum

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Contract Storage (CSS)

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Deliverability Charge (Dth) $ 1.692 $ 0.000

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Maximum Daily Volumetric

Capacity Release Rates (Dth) $ .0556 $ 0.000

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Capacity Charge (Dth) 3.305¢ 0.000¢

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Maximum Daily Volumetric

Capacity Release Rates (Dth) .1087¢ 0.000¢

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Injection Charge (Dth) .950¢ .950¢

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Withdrawal Charge (Dth) .950¢ .950¢

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Rates for Customers Electing

FT-Small Shipper Charge

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Deliverability Charge (Dth) $ .635 $ 0.000

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Capacity Charge (Dth) 3.305¢ 0.000¢

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Injection Charge (Dth) .950¢ .950¢

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Withdrawal Charge (Dth) .950¢ .950¢

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Fuel Retention:

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Injection .81%

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Withdrawal .81%

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1/ The foregoing rates have been established pursuant to the terms of the Settlement filed in

Docket No. RP09-427 for all Contesting Parties as defined in the Settlement.