Midwest Gas Storage, Inc.

First Revised Volume No. 1

Effective Date: 05/15/1994, Docket: CP90-454-004, Status: Effective

Original Sheet No. 512 Original Sheet No. 512 : Effective

Shipper shall notify Midwest of any changes of daily

deliveries to Midwest or daily receipts from Midwest.

Midwest shall notify Shipper of any changes of daily

receipts from Shipper (or his agent) or of any daily

deliveries to Shipper (or his designated recipient of gas).

The notification required by the preceding two sentences

shall be made by telephone or other instant communication

immediately upon knowledge thereof. Variations of actual

deliveries to Midwest from the nominated deliveries at the

Point(s) of Receipt shall be considered imbalances. Such

imbalances shall be kept to the minimum permitted by

operating conditions and shall be corrected as soon as

possible.

4.3 Scheduling, Allocation of Capacity, and Curtailment.

(a) General For each Day, Midwest will schedule receipts

and deliveries of Gas, on the basis of Storage

nominations made by Shippers, which Midwest is hereby

authorized to rely upon in its scheduling; storage

capacity available on Midwest's system thereof in

light of such nominations and requests; usage of

Storage Service by Shippers in recent Months; and

overall operating conditions from time to time. As

set forth in the following sections, Midwest will

schedule all quantities nominated under all its FSS

contracts prior to scheduling nominations under its

ISS contracts.

(b) Scheduling and Allocation of FSS In attempting to

schedule nominated quantities under FSS agreements

pursuant to Section 4.3(a) above, Midwest shall

allocate capacity, if required, on a pro rata basis

according to Maximum Daily Quantities, Maximum Daily

Injection Quantity, or Maximum Daily Withdrawal

Quantity, as applicable.

schedule nominated quantities under ISS agreements

pursuant to Section 4.3(a) above, Midwest shall

allocate capacity, if required, on the basis of price,

with non-discounted ISS agreements scheduled first.

In the case of ISS agreements with the same rate,