Columbia Gas Transmission LLC

Third Revised Volume No. 1

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Effective Date: 11/01/2009, Docket: RP09-792-002, Status: Pending

Seventh Revised Sheet No. 29 Seventh Revised Sheet No. 29

Superseding: Sixth Revised Sheet No. 29

Currently Effective Rates

Applicable to Rate Schedule OPT

Rate Per Dth

Transportation Cost Electric Power Annual Total

Base Rate Adjustment Costs Adjustment Charge Effective Daily

Tariff Rate Current Surcharge Current Surcharge Adjustment Rate Rate

1/ 2/

Rate Schedule OPT

30 Days Interruption7

Reservation Charge 3/ $ 5.138 0.313 0.036 0.039 0.002 - 5.528 0.1818

60 Days Interruption

Reservation Charge 3/ $ 4.669 0.285 0.033 0.035 0.002 - 5.024 0.1653

Commodity

Maximum ¢ 1.04 0.23 0.04 0.58 0.08 0.19 2.16 2.16

Minimum ¢ 1.04 0.23 0.04 0.58 0.08 0.19 2.16 2.16

Overrun

30 Days Interruption ¢ 17.93 1.26 0.16 0.71 0.09 0.19 20.34 20.34

60 Days Interruption ¢ 16.39 1.17 0.15 0.70 0.09 0.19 18.69 18.69

1/ Excludes Account 858 expenses and Electric Power Costs which are recovered through Columbia's Transportation Costs Rate Adjustment (TCRA)

and Electric Power Costs Adjustment (EPCA), respectively. For rates by function, see Sheet No. 35.

2/ ACA assessed where applicable pursuant to Section 154.402 of the Commission's Regulations.

3/ Minimum reservation charge is $0.00.