Texas Gas Transmission Corporation

First Revised Volume No. 2-A

Effective Date: 11/01/1991, Docket: RP90-104-021, Status: Effective

Sub First Revised Sheet No. 51 Sub First Revised Sheet No. 51 : Effective

Superseding: Sub Original Sheet No. 51

RATE SCHEDULE

IT-SL, IT-1, IT-2, IT-3 and IT-4

Interruptible Transportation Service

(Continued)

other Customer under any of Transporter's sales or

transportation rate schedules (see Section 10 of the

General Terms and Conditions of Transporter's FERC

Gas Tariff, First Revised Volume No. 2-A), if such

transportation is compatible to Transporter's system

operation requirements. Subject to the foregoing

restrictions, Transporter's consent shall not be

unreasonably withheld.

3. Categories and Priorities of Transportation Services

Refer to Section 10 of the General Terms and Conditions of

Transporter's FERC Gas Tariff, First Revised Volume No. 2-A.

4. Rates and Charges

The applicable rates per MMBtu under this rate schedule for

interruptible transportation service in each zone are set

forth on currently effective Sheet No. 11 of this tariff,

and these rates are incorporated herein by reference.

4.1 Rates

Unless otherwise agreed to in writing by Transporter

and Customer, Customer shall pay to Transporter each

month the maximum Commodity Charge (including the

GRI General R&D Funding Unit, if applicable, and the

FERC ACA Unit Charge, the Transportation Cost

Adjustment (TCA) Unit Charge, and Take-or-Pay

Surcharges, or similar charges) per MMBtu of gas

delivered by Transporter.

In addition, Customer shall pay Transporter for any

additional charges arising out of Sections 4.3 and

4.4 of this Rate Schedule.

Unless otherwise agreed to in writing by Transporter

and Customer, Transporter may, from time to time and