Transcontinental Gas Pipe Line Company, LLC

Fourth Revised Volume No. 1

Effective Date: 04/01/2010, Docket: RP10-395-000, Status: Effective

Fifth Revised Sheet No. 42 Fifth Revised Sheet No. 42

Superseding: Fourth Revised Sheet No. 42

FIRM TRANSPORTATION SERVICE RATES

UNDER RATE SCHEDULE FT APPLICABLE TO

SOUTHCOAST EXPANSION PROJECT (SOUTHCOAST)

FIRM TRANSPORTATION SERVICE

Incremental Southcoast Annual Firm Transportation

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Maximum Minimum

Daily Daily

Reservation Rate per dt - Zone 4 Rate Rate

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($) ($)

Firm Transportation Service For Specified Mainline

Delivery Points

Base Rate 0.17439 0.00000 1/

Electric Power Unit Rate 0.00105 0.00105

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Total Reservation Rate 0.17544 0.00105

Firm Transportation Service For Specified Delivery

Points on the Georgia Extension

Base Rate 0.29435 0.00000 1/

Electric Power Unit Rate 0.00105 0.00105

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Total Reservation Rate 0.29540 0.00105

Commodity Rate per dt - Zone 4

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Base Rate 0.00016 0.00016

Electric Power Unit Rate 0.00326 0.00326

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Total Commodity Rate (excluding ACA) 2/ 3/ 0.00342 0.00342

Notes:

1/ The minimum reservation rate applicable to capacity release transactions that are not

permanent releases shall not be less than zero.

2/ Pursuant to Section 27 of the General Terms and Conditions, the Total Commodity Rate shall

be increased to include the ACA unit rate of $0.00190, if applicable.

3/ The Total Commodity Rate applies to upstream or downstream transactions on Buyer's primary

or reverse path.