National Fuel Gas Supply Corporation

Fourth Revised Volume No. 1

Effective Date: 10/14/2004, Docket: RP04-591-000, Status: Effective

First Revised Sheet No. 162 First Revised Sheet No. 162 : Effective

Superseding: Original Sheet No. 162

IR-1 RATE SCHEDULE

Hub Service - Imbalance Resolution Schedule

1. AVAILABILITY

1.1 This IR-1 Rate Schedule is available for imbalance resolution

service by National Fuel Gas Supply Corporation (hereinafter

called "Transporter") in the geographic area encompassing

Transporter's facilities at the points identified in Section 1.17

of the General Terms and Conditions of Transporter's FERC Gas

Tariff, as "Hub Points", on behalf of any person (hereinafter

called "Shipper") provided that Shipper meets the eligibility

requirements hereof. Transporter will offer imbalance resolution

service to any prospective Shipper on a non-discriminatory basis.

1.2 In addition to the information specified in Section 31 of the

General Terms and Conditions of this tariff, a request for

service under this rate schedule shall include the following:

(a) Gas Quantities: The Maximum Advanced Quantity (MAQ) stated

in dekatherms.

2. APPLICABILITY AND CHARACTER OF SERVICE

2.1 The Imbalance Resolution service provided under this IR-1 Rate

Schedule shall be performed under Subpart 284G of the

Commission's Regulations or, where specifically referenced in the

IR-1 Service Agreement, Subpart 284B of such regulations. This

IR-1 Rate Schedule shall apply to all imbalance resolutions by

Transporter for Shipper pursuant to an IR-1 Service Agreement.

2.2 (a) Service hereunder shall be provided on an interruptible

basis only. IR-1 Service shall be subordinate to any and

all firm and interruptible services that are non-Hub

services as supplied by Transporter including the

management of Transporter's system and the use of storage

to support its firm transportation services.

(b) Transporter will authorize IR-1 service for any Shipper

only if, within Transporter's best operating judgement and

discretion, such service is not otherwise expected