Centerpoint Energy - Mississippi River

Third Revised Volume No. 1

Effective Date: 01/19/2005, Docket: RP05-129-000, Status: Effective

Sixth Revised Sheet No. 146 Sixth Revised Sheet No. 146 : Effective

Superseding: Fifth Revised Sheet No. 146

GENERAL TERMS AND CONDITIONS

(Continued)

10. TRANSPORTATION BALANCING (Continued)

10.3 Monthly Balancing

(a) On or before the date on which MRT renders the invoice for

the prior month's services, MRT shall notify each Customer receiving

service under Rate Schedule FTS, ITS or SCT, or Pool Operator, in

writing or electronically, of the Customer's or Pool's estimated or

actual imbalance based upon the quantities received and delivered in the

prior month. Upon thirty (30)days' notice via a posting on MRT's

Internet web site, MRT may provide such notification only through

electronic means via the Internet.

(b) MRT shall determine the imbalance quantity for each month on

a Dth basis.

Option

(i) Unless MRT otherwise agrees, an NNT Customer must

prospectively notify MRT of its election to use the monthly

balancing option contained in this Section 10.3(c). Upon thirty

(30) days' notice via a posting on MRT's Internet web site, MRT may

require such notification to be provided electronically via the

Internet.

(ii) If MRT receives such notification, MRT will

automatically adjust an NNT Customer's storage injections or

withdrawals to accommodate the Customer's variance between actual

receipts and actual deliveries under a transportation contract,

adjusted for fuel reimbursement in accordance with the terms and

conditions of the NNT balancing option selected. Such adjustments

to injections or withdrawals must conform to the schedules set

forth in Rate Schedule FSS and the provisions related thereto.

(d) Cash Balancing

(i) Each monthly imbalance quantity will be assigned a

dollar value based upon the level of the imbalance and the charts

set forth in this Section 10.3. The cash-out prices shall be the

highest and lowest weekly average spot prices for each zone for

each month (the "Index Sell" and "Index Buy" Prices, respectively)

using published listings of weekly average spot prices in Gas

Daily or other standard industry publication for gas delivered at

locations identified by MRT (or, if an appropriate spot price is

not published, a weighted average based on multiple spot prices)

and posted prior to each month by MRT on