National Fuel Gas Supply Corporation

Fourth Revised Volume No. 1

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

Second Revised Sheet No. 129 Second Revised Sheet No. 129

Superseding: First Revised Sheet No. 129

ISS RATE SCHEDULE

Interruptible Storage Service

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

2.3 Service hereunder shall consist of the receipt of natural gas

delivered to storage facilities utilized by Transporter pursuant

to a shipper's transportation service agreement; the injection of

such gas into such storage facilities, the storage and withdrawal

of that gas, and the delivery of that gas, after reductions as set

forth in the ISS Service Agreement and Section 3 of this ISS Rate

Schedule, into Transporter's transmission facilities for

subsequent transportation pursuant to a shipper's transportation

service agreement.

2.4 The ISS Service Agreement shall specify the Maximum Daily

Injection Quantity, Maximum Daily Withdrawal Quantity and Maximum

Storage Quantity applicable to Shipper.

2.5 To the extent storage capacity which is being utilized by a

Shipper hereunder is needed by Transporter in order to satisfy or

to accommodate Transporter's obligations to firm transportation or

storage customers, Transporter shall require Shipper to withdraw

all, or any portion, of the gas quantities held in storage by

Transporter within thirty (30) days of Transporter's notice to

Shipper. If Shipper fails to arrange for the withdrawal from

storage of the quantities specified by Transporter in its notice,

despite the availability of capacity for the withdrawal of

Shipper's gas under its ISS Service Agreement and the

transportation of Shipper's gas under its IT Service Agreement,

Transporter shall take title to Shipper's ISS Storage Balance that

Shipper was instructed to withdraw, free and clear of any adverse

claims. Transporter's notice to Shipper may be verbal and in such

case shall be followed by a written confirmation.