Transcontinental Gas Pipe Line Company, LLC

Fourth Revised Volume No. 1

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Effective Date: 04/01/2010, Docket: RP10-379-000, Status: Effective

Seventh Revised Sheet No. 21 Seventh Revised Sheet No. 21

Superseding: Sixth Revised Sheet No. 21

RATES AND CHARGES APPLICABLE TO STORAGE RATE SCHEDULES

IN FERC GAS TARIFF FOURTH REVISED VOLUME NO. 1

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Electric Third Total

Base Power Party Daily

Rate Rate Rate Rate

Rate Schedule and Section (dt) (dt) (dt) (dt)

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

($) ($) ($) ($)

GSS - General Storage Service

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3.2 (a) Demand Charge 0.06580 0.00011 0.03273 0.09864

3.2 (b) Storage Capacity Quantity Charge 0.00028 0.00000 0.00027 0.00055

3.2 (c) Quantity Injected Charge 1/ 0.02741 0.00216 0.01346 0.04303

3.2 (d) Quantity Withdrawn Charge 0.02741 0.00216 0.00903 0.03860

3.2 (e) Excess Delivery from Buyer's Storage Gas

Balance Charge 0.51083 0.00280 0.29721 0.81084

3.2 (f) Excess End of Season Inventory Charge

See Section 14 of Rate Schedule GSS.

Third

Seller's Party Total

Fuel Fuel Fuel

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

3.3, 8 Injection Fuel 2.54% 1.79% 4.33%

LG-A - Liquefied Natural Gas Storage Service

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3.2 (a) Demand Charge 0.04455

3.2 (b) Capacity Charge 0.00858

3.2 (c) Quantity Injected Charge 1.36905

3.2 (d) Quantity Withdrawn Charge 1.36905

11. Excess Delivery From Buyer's Liquified Gas Balance Charge 7.75290

LG-S - Liquefied Natural Gas Delivery - At Site

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3.1 Rate 0.63700

Daily Daily

Maximum Minimum

Rate Rate

(dt) (dt)

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

LNG - Liquefied Natural Gas Storage Service ($) ($)

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3.3 (a) Demand Charge 0.04455 0.00000

3.3 (b) Storage Capacity Quantity Charge 0.00858 0.00000

3.3 (c) Quantity Injected Charge 1.36905 1.36905

3.3 (d) Quantity Withdrawal Charge 1.36905 1.36905

10. Excess Delivery From Buyer's Liquified Gas Balance Charge 7.75290 1.36905

Notes:

1/ Pursuant to Section 27 of the General Terms and Conditions of this Tariff, the quantity injection charge

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