National Fuel Gas Supply Corporation

Fourth Revised Volume No. 1

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Effective Date: 04/21/2010, Docket: RP10-504-000, Status: Effective

Second Revised Sheet No. 115 Second Revised Sheet No. 115

Superseding: First Revised Sheet No. 115

ESS RATE SCHEDULE

Enhanced Storage Service

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

(c) to store a quantity of gas in excess of the Maximum Storage

Quantity (MSQ), or

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

Withdrawal Period, which shall commence November 1st and

end April 15th,

(e) to withdraw 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 2.11 hereof.

2.4 Transporter shall provide service under this ESS Rate Schedule

through its combined utilization of each of its individual

storage fields. Shipper's Storage Balance shall not be stored in

or allocated to any particular storage field(s).

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 2.10

hereof. Such excess quantities shall be referred to as

authorized overruns.