Southern Natural Gas Company

Seventh Revised Volume No. 1

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Effective Date: 01/01/2010, Docket: RP10-334-000, Status: Effective

Twelfth Revised Sheet No. 23 Twelfth Revised Sheet No. 23

Superseding: Eleventh Revised Sheet No. 23

Shipper Contract # Term Negotiated Rate/Formula

RATE SCHEDULE FT/FT-NN

BG Energy Merchants LLC FSNG366 - 335,244 Dth 4/30/2027 Reservation Charge $12.77 Dth

(Packages 21 and 22) per month X MDDQ and

Applicable Transportation

Charge per dth on Sheet No.

14 (contesting parties), In-

Kind Fuel % and all other

applicable charges set forth

on Sheet Nos. 26 - 27, as

amended by FERC Order from

time to time, provided that,

the fuel rate for

transportation on the Cypress

Pipeline shall be the lesser

of (a)tariff rate or (b) 1%

or (c) the lowest fuel rate

charged any other shipper for

transportation on the Cypress

Pipeline. In the event of a

rate impact affecting

revenues by $12,000,000 or

more, the Reservation Charge

and/or the Transportation

Charge could be adjusted

depending on circumstances

and causes of rate impact.

Shipper shall not pay

Company's Downstream Delivery

Charge since receipt volumes

originate in Zone 3. If a

rate design change causes

Shipper to lose its ability

to deliver gas in upstream

zones, reservation charge may

be adjusted depending on rate

impact of such deliveries.

The Negotiated Reservation

Charge will be adjusted in

the first month to reflect

the amount Shipper would have

paid if negotiated rate

agreement had been in effect

as of September 1, 2009, the

effective date of Southern's

Settlement Rates.

FLORIDA POWER CORPORATION

d/b/a Progress Energy Florida, Inc. FSNG25 - 59,210 Dth 4/30/2027 Reservation Charge $10.79 Dth

May-Sept. per month X MDDQ and

Applicable Transportation

24,671 Dth Charge, In-Kind Fuel and all

Oct.-Apr. other applicable charges set

forth on Sheet Nos. 26 - 27,

as amended by FERC Order from

time to time.