Transcontinental Gas Pipe Line Company, LLC

Fourth Revised Volume No. 1

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

Fourth Revised Sheet No. 84 Fourth Revised Sheet No. 84

Superseding: Third Revised Sheet No. 84

INTERRUPTIBLE TRANSPORTATION SERVICE RATES

APPLICABLE TO CERTIFICATED TRANSPORTATION

RENDERED PURSUANT TO SECTION 7(C)

OF THE NATURAL GAS ACT

Rate per dt (excluding surcharges) 1/

-----------

Receipt & Fixed Variable Electric

Delivery Cost Cost Power Total

Zone Unit Rate Unit Rate Unit Rate Rate 2/

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

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

1-1 0.07175 0.00142 0.00063 0.07380

1-2,2-1 0.09787 0.00340 0.00148 0.10275

1-3,3-1 0.14173 0.00566 0.00254 0.14993

1-4,4-1 0.29973 0.01573 0.00685 0.32231

1-5,5-1 0.41218 0.02329 0.01018 0.44565

1-6,6-1 0.47860 0.02759 0.01218 0.51837

2-2 0.07813 0.00214 0.00085 0.08112

2-3,3-2 0.12199 0.00440 0.00191 0.12830

2-4,4-2 0.27999 0.01447 0.00622 0.30068

2-5,5-2 0.39244 0.02203 0.00955 0.42402

2-6,6-2 0.45886 0.02633 0.01155 0.49674

3-3 0.09587 0.00242 0.00106 0.09935

3-3 (Washington Withdrawal) 0.05201 0.00016 0.00000 0.05217

3-4,4-3 0.25387 0.01249 0.00537 0.27173

3-5,5-3 0.36632 0.02005 0.00870 0.39507

3-6,6-3 0.43274 0.02435 0.01070 0.46779

4-4 0.21001 0.01023 0.00431 0.22455

4-5,5-4 0.32246 0.01779 0.00764 0.34789

4-6,6-4 0.38888 0.02209 0.00964 0.42061

4A-4A 0.09094 0.00250 0.00109 0.09453

5-5 0.16446 0.00772 0.00333 0.17551

5-6,6-5 0.23088 0.01202 0.00533 0.24823

6-6 0.11843 0.00446 0.00200 0.12489

Gathering Charges

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In addition to the charges above, the gathering rates on Sheet No. 30 shall apply to quantities

transported through gathering facilities.

Notes:

1/ Pursuant to Section 27 of the General Terms and Conditions, the above charges shall be

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

2/ The Fixed and Variable Cost unit rates plus the Electric Power unit rate.