Centerpoint Energy Gas Transmission Company

Sixth Revised Volume No. 1

Effective Date: 08/27/2008, Docket: RP08-456-000, Status: Effective

Second Revised Sheet No. 188 Second Revised Sheet No. 188

Superseding: First Revised Sheet No. 188

RATE SCHEDULE FSS

FIRM STORAGE SERVICE

(continued)

5. MONTHLY BILL (continued)

adjusted by subtracting the product of the total Dth of

Gas which Transporter was unable to tender and the

currently effective Deliverability Fee Adjustment Rate.

For Shippers paying less than the maximum rate, the

amount of the adjustment, if any, shall be consistent

with the discount agreement between Shipper and

Transporter.

(b) Excess Service Charge: Except as may occur pursuant to

the Storage Overrun Service provisions of this Rate

Schedule, or unless Transporter waives all or part of

such Excess Service Charge, if during any Service Month

during the Withdrawal Period, Shipper receives in excess

of one hundred two percent (102%) of the Maximum Monthly

Withdrawal Quantity (or in the event of curtailment or

when Transporter has invoked the provisions of Section 20

of the General Terms and Conditions, in excess of 102% of

the total Dth which Shipper is authorized to receive),

Shipper shall be billed an amount equal to the product of

the total Dth of Gas taken in excess of 102% of the

Maximum Monthly Withdrawal Quantity or other authorized

amount, as applicable, and the applicable Excess Service

Rate.

Working Gas Quantity by the end of the Storage Contract

Year to a quantity equal to or less than thirty-one

percent (31%) of its Working Gas Quantity as of November

1 of such Storage Contract Year, then Shipper shall be

billed an amount equal to the product of the total Dth of

Working Gas Quantity in excess of thirty-one percent

(31%) of the Working Gas Quantity in storage as of

November 1 of such Storage Contract Year and the Cycling

Penalty Charge.