Mississippi River Transmission Corp.

Original Volume No. 1-A

Effective Date: 04/20/1991, Docket: RP91-121-000, Status: Effective

Second Revised Sheet No. 30 Second Revised Sheet No. 30 : Effective

Superseding: First Revised Sheet No. 30

RATE SCHEDULE ITS

INTERRUPTIBLE TRANSPORTATION SERVICE

(Continued)

7. BALANCING OF RECEIPTS AND DELIVERIES

7.1 Pursuant to Section 10 of the Transportation General Terms

and Conditions, daily deliveries of gas by Transporter to Shipper

hereunder shall be approximately equal to daily receipts of gas by

Transporter from Shipper for transportation hereunder, less any gas

retained by Transporter in providing such transportation service.

Transporter shall have no obligation to take receipt of gas on any

day that Shipper fails to take delivery of equivalent quantities of

gas tendered by Transporter at the Delivery Point(s) and Transporter

shall have no obligation to deliver gas to Shipper on any day that

Shipper fails to deliver equivalent quantities to Transporter at the

Receipt Point(s). However, if deliveries hereunder by Transporter

are greater or less than the corresponding receipts of gas by

Transporter for transportation, less any gas retained, Transporter

and Shipper agree that any excess or deficiency in receipts or

deliveries shall be adjusted or corrected in accordance with the

terms of Section 10 of the Transportation General Terms and

Conditions in addition to any other charges or remedies to which

Transporter may be entitled.

8. AUTHORIZED OVERRUN SERVICES

8.1 Transporter may, but is not obligated to, receive,

transport, and/or deliver on any day as authorized overrun

transportation quantities of natural gas in excess of Shipper's MDTQ,

whether in the aggregate or as specified for each Receipt and

Delivery Point, under the Transportation Service Agreement when, in

Transporter's reasonable judgment, the delivery capacity of its

system will permit such receipt, transportation, and/or delivery

without impairing the ability of Transporter to meet its other

obligations. Shipper shall pay Transporter the applicable rate for

Authorized Overrun Transportation set forth on Sheet No. 3 of this

tariff. Except as specified in Section 3.2(a) and Section 3.5,

nothing herein shall affect the priorities specified in Section 3

hereof. All requests for authorized overrun service shall be deemed

to be a request for new transportation service.