Centerpoint Energy Gas Transmission Company

Sixth Revised Volume No. 1

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Effective Date: 02/28/2003, Docket: RP03-239-000, Status: Effective

Original Sheet No. 417 Original Sheet No. 417 : Effective

GENERAL TERMS AND CONDITIONS

(continued)

5.7 Balancing (continued)

Transporter will transfer the quantities

traded between the appropriate Shippers

and update the balancing statements for

each Shipper for the affected Month. Upon

thirty (30) Days notice via posting on

Transporter's Internet Web Site,

Transporter may begin providing the

trading parties notification and approval

of trades electronically via its Internet

Web Site. Trades can only be withdrawn by

the initiating trader and only prior to

Transporter's receipt of the confirming

trader's confirmation of the trade. Trades

are considered final when confirmed by the

confirming trader and effectuated by

Transporter as provided in the imbalance

trade notification. Trades will be

reflected on the cash-out invoice next

following such trade.

C. Transporter will permit posting and

trading of imbalances incurred in the

prior Month beginning on the ninth (9th)

Business Day of the Month and continuing

until the seventeenth (17th) Business Day

of such Month (the "Gas Trading Period"),

unless Transporter extends the Gas Trading

Period by posting on its Internet Web

Site.