Transcontinental Gas Pipe Line Company, LLC

Fourth Revised Volume No. 1

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

Fifth Revised Sheet No. 47 Fifth Revised Sheet No. 47

Superseding: Fourth Revised Sheet No. 47

FIRM TRANSPORTATION SERVICE RATES

UNDER RATE SCHEDULE FT APPLICABLE TO

MARKET LINK EXPANSION PROJECT PHASE II (MARKET LINK)

FIRM TRANSPORTATION SERVICE

Incremental Market Link Annual Firm Transportation

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Maximum Minimum

Daily Rate Daily Rate

---------- ----------

($) ($)

Reservation Rate per dt - Zone 6:

Base Rate 0.38343 0.00000 1/

Electric Power Unit Rate 0.00049 0.00049

------- -------

Total Reservation Rate 0.38392 0.00049

Maximum Minimum

Rate Rate

------- -------

($) ($)

Commodity Rate per dt - Zone 6:

Base Rate 0.00016 0.00016

Electric Power Unit Rate 0.00151 0.00151

------- -------

Total Commodity Rate (excluding ACA) 2/ 3/ 0.00167 0.00167

Keyspan Gas East Corporation's (Keyspan) MarketLink Contract

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The following recourse rates, which include the applicable Leidy to Long Island charges, shall

apply to Keyspan's MarketLink FT contract demand entitlements (50,000dt/d):

Maximum Minimum

Daily Rate Daily Rate

---------- ----------

($) ($)

Reservation Rate per Dt - Zone 6:

Base Rate 0.38343 0.00000 1/

Electric Power Unit Rate 0.00049 0.00049

Base Rate - Leidy to Long Island - Sta. 210 to Long Island 0.58366 0.00000 1/

Leidy to Long Island - Electric Power Unit Rate - Sta. 207 0.01880 0.01880

------- -------

Total Reservation Rate 0.98638 0.01929

Maximum Minimum

Rate Rate

-------- --------

($) ($)

Commodity Rate per Dt - Zone 6:

Base Rate 0.00016 0.00016

Electric Power Unit Rate 0.00151 0.00151

Base Rate - Leidy to Long Island 0.00000 0.00000

Leidy to Long Island - Electric Power Unit Rate - Sta. 207 0.14539 0.14539

-------- --------

Total Commodity Rate (excluding ACA) 2/ 3/ 0.14706 0.14706

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.