Michigan Gas Storage Company

First Revised Volume No 1

Effective Date: 01/01/1997, Docket: RP96-290-000, Status: Effective

First Revised Sheet No. 13 First Revised Sheet No. 13 : Superseded

Superseding: Original Sheet No. 13

RATE SCHEDULE IT

INTERRUPTIBLE TRANSPORTATION SERVICE

1. AVAILABILITY

This Rate Schedule is available to any party ("Shipper") for the

transportation of Gas by Michigan Gas Storage Company

("Transporter"), when:

(a) Shipper desires interruptible transportation service of Gas; and

(b) Shipper has met the Conditions of Service specified in Section 3;

and

service under this Rate Schedule.

Transportation Service under this Rate Schedule shall be provided

subject to the General Terms and Conditions.

2. APPLICABILITY AND CHARACTER OF SERVICE

This Rate Schedule shall apply to all transportation service rendered

by Transporter for Shipper pursuant to the executed Service Agreement

for service under this Rate Schedule.

Service under this Rate Schedule shall consist of: (i) the receipt

of Gas on behalf of Shipper at the Point of Receipt specified in the

executed Service Agreement, (ii) the transportation of Equivalent

Quantities of Gas through the Transporter's pipeline, and (iii) the

delivery of Gas by Transporter to Shipper, or for Shipper's account,

at the Point of Delivery.

Shipper shall have access to all Points of Receipt and Points of

Delivery on Transporter's System.

Service rendered under this Rate Schedule shall be interruptible, up

to the Maximum Daily Quantity (MDQ) on any Day. The MDQ shall be

specified in the executed Service Agreement.

3. CONDITIONS OF SERVICE

3.1 Request for Service

In Order to request service pursuant to this Rate Schedule, a

potential Shipper shall make such request for service by phone or

facsimile, or in writing to Transporter. Transporter will respond to

such request within ten (10) business days. If such request is

denied, Transporter will inform requestor in writing of such denial,

and the reasons therefore.