Mississippi River Transmission Corp.

Third Revised Volume No. 1

Effective Date: 11/01/1993, Docket: RS92- 43-004, Status: Effective

Original Sheet No. 218 Original Sheet No. 218 : Superseded

GENERAL TERMS AND CONDITIONS

(Continued)

19. 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.

19.3 Any Customer disputing the amount of its invoice shall

notify MRT in writing within thirty (30) days of the date of the invoice

by providing a written description of the basis for the dispute and

directing such notice to:

Mississippi River Transmission Corporation

9900 Clayton Road

St. Louis, Missouri 63124

Attn: Transportation Services

Telecopy to: 314-991-7600

MRT shall investigate the dispute and shall respond initially within

forty-eight (48) hours and in writing within thirty (30) days after

receipt of the written notice of the dispute. If Customer in good faith

shall dispute the amount of any such statement, Customer shall

nevertheless pay to MRT such amount and, at any time thereafter within

thirty (30) days of a demand made by Customer, MRT shall furnish surety

bond guaranteeing refund to Customer of the amount ultimately found

overpaid by Customer following a final determination which may be

reached either by agreement or judgment of the courts, as may be the

case.

19.4 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 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 two (2) years from the date of invoice thereof unless

challenged in writing prior thereto. Any error so discovered as a

result of a timely claim shall be corrected within thirty (30) days of

the determination thereof.