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First Revised Sheet No. 131J First Revised Sheet No. 131J : Superseded

Superseding: Original Sheet No. 131J

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 prospec-

tive 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 Sch-

edule shall be performed under Part 284 of the Commission's Regula-

tions. 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 sup-

plied by Transporter including the management of Transporter's

system and the use of storage to support its firm transporta-

tion services.

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

if, within Transporter's best operating judgement and discre-

tion, such service is not otherwise expected to prevent