Mississippi River Transmission Corp.

Original Volume No. 1-A

Effective Date: 01/01/1991, Docket: RP89-248-008, Status: Effective

Second Revised Sheet No. 28 Second Revised Sheet No. 28 : Effective

Superseding: First Revised Sheet No. 28

RATE SCHEDULE ITS

INTERRUPTIBLE TRANSPORTATION SERVICE

(Continued)

4. RATES AND CHARGES (Continued)

4.5 In the event Shipper and Transporter mutually agree in the

executed Transportation Service Agreement that Shipper will supply

fuel, Transporter will retain the applicable percentage of gas

volumes received from Shipper at the Receipt Point(s) as set forth on

the currently effective Sheet No. 3 of this tariff as the "fuel use

and loss." The fuel and loss percentages shall be increased or

decreased each year consistent with Paragraph 17.34(c) of

Transporter's Volume No. 1 tariff to reflect the difference between

the actual fuel use and loss and the fuel use and loss retained or

charged Shippers during the previous period. In times of system

supply shortage requiring curtailment of Transporter's firm sales

customers, Shipper shall have the obligation to provide fuel in kind.

4.6 In the event Transporter agrees in the Transportation

Service Agreement to process gas transported for Shipper, then

Transporter shall charge Shipper an amount reflecting all the costs

of providing such service.

4.7 Transporter shall have no obligation to offer

transportation services at any rates less than the maximum rates

specified in Sheet No. 3 of this tariff. Transporter may from time

to time and at any time, upon twenty four (24) hours verbal or

written notice, at its sole discretion or as provided in the

Transportation Service Agreement, charge any individual Shipper for

transportation service under this rate schedule a transportation rate

which is lower than the maximum rate for interruptible transportation

service specified in this tariff. Such lower rate shall not be less

than Transporter's applicable minimum rate for interruptible

transportation service. Any such verbal notice shall be confirmed to

Shipper in writing and shall state the effective date of such rate

change and the quantity of gas affected. Transporter may increase or

further decrease such rate upon twenty four (24) hours verbal notice

to Shipper and shall confirm such notice in writing. Pursuant to

Section 284.7 of the Commission's regulations, Transporter shall file

with the Commission any and all required reports.

4.8 Transporter shall have the unilateral right to file with

any appropriate regulatory authority and make changes effective in

(1) the rates and charges applicable under this Rate Schedule ITS,

including both the level and design of such rates and charges; or (2)

this Rate Schedule ITS. Transporter agrees that Shipper may protest