Centerpoint Energy - Mississippi River

Third Revised Volume No. 1

Effective Date: 04/01/2003, Docket: RP00-410-003, Status: Effective

Sixth Revised Sheet No. 225 Sixth Revised Sheet No. 225 : Effective

Superseding: Fifth Revised Sheet No. 225

GENERAL TERMS AND CONDITIONS

(Continued)

17. BILLING, STATEMENTS, PAYMENT AND RECORDS (Continued)

arrangements within such ten (10) day notice period, MRT, in addition to

any other remedy it may have hereunder, may, upon thirty (30) days'

written notice to Customer, terminate further receipt and/or delivery of

gas on behalf of Customer.

17.3 Subject to Section 17.4 below, if any Customer disputes the

amount of its invoice, it shall pay at least the portion of the invoiced

amount not disputed and, if it withholds payment of the disputed amount

it must provide with such payment full documentation electronically or

in writing to MRT (upon thirty (30) days' notice via a posting on MRT's

Internet web site, MRT may require such documentation to be submitted

electronically) with respect to the claimed error, including identifying

each amount in dispute and the reasons and support therefor.

17.4 Each party shall have the right at reasonable hours to examine

the books and records of the other party to the extent necessary to

verify the accuracy of any statement (including allocations) or charge

made hereunder. If any such examination reveals any inaccuracy in any

statement or charge, then necessary adjustment and correction thereof

shall be made promptly, provided that no adjustment for any billing or

payment shall be made after the lapse of six (6) months from the date of

the invoice or statement thereof unless prior thereto the adjustment is

made or the error is challenged in writing including documentation (upon

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

may require such challenge and documentation to be submitted

electronically) as to the basis and reasons for the claimed error.

(i) Measurement data corrections should be processed within

6 (six) months of the production month with a three (3) month rebuttal

period. This standard shall not apply in the case of deliberate

omission or misrepresentation or mutual mistake of fact. Parties' other

statutory or contractual rights shall not otherwise be diminished by

this standard.

(ii) Prior period adjustment time limits should be six (6)

months from the date of the initial transportation invoice and seven (7)

months from date of initial sales invoice with a three (3) month

rebuttal period, excluding government required rate changes. This

standard shall not apply in the case of deliberate omission or

misrepresentation or mutual mistake of fact. Parties' other statutory

or contractual rights shall not otherwise be diminished by this

standard.