National Fuel Gas Supply Corporation

Third Revised Volume No. 1

Effective Date: 04/01/1997, Docket: RP97-201-000, Status: Effective

First Revised Sheet No. 100 First Revised Sheet No. 100 : Superseded

Superseding: Original Sheet No. 100

ESS RATE SCHEDULE

Enhanced Storage Service

2. APPLICABILITY AND CHARACTER OF SERVICE (Cont'd.)

Quantity (MSQ), or

(d) to deliver any gas during periods of time not within the

Withdrawal Period, which shall commence November 1st and end

April 15th,

(e) to deliver quantities of gas in excess of the Maximum Daily

Withdrawal Quantity (MDWQ) specified in the ESS Service

Agreement, or the percentage thereof is applicable pursuant to

Section 2.12 hereof.

2.4 Notwithstanding Section 13 of the General Terms and Conditions of

this tariff, nominations for injections and withdrawals pursuant to

an ESS Service Agreement may be revised as needed upon less than

twenty-four (24) hours advance notice to Transporter.

2.5 Notwithstanding Section 13 of the General Terms and Conditions of

this tariff, Transporter will adjust scheduled injections and

withdrawals pursuant to an ESS Service Agreement as necessary to

balance nominated receipts and actual deliveries under the

Shipper's EFT Service Agreement, up to the MDIQ or MDWQ specified

in the Shipper's ESS Service Agreement.

2.6 Provided Transporter determines that the receipt of gas and the

injection of such gas into storage from Shipper can be accomplished

by Transporter without detriment to Transporter's facilities and/or

Transporter's ability to meet its firm obligations to other

Shippers, Transporter, upon request of Shipper, shall inject on an

interruptible basis quantities of gas in excess of the limitations

set forth in Sections 2.3 and 2.11 hereof. Such excess quantities

shall be referred to as authorized overruns.