SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.

FORM U-6B-2
Certificate of Notification

         Filed by a registered holding company or subsidiary thereof pursuant to Rule U-20-(d) or U-47 or U-52, adopted under the Public Utility Holding Company Act of 1935, as amended.

Certificate is filed by:

NATIONAL FUEL GAS COMPANY ("NFG")
NATIONAL FUEL GAS SUPPLY CORPORATION ("NFGSC")
SENECA RESOURCES CORPORATION ("SENECA")
HIGHLAND FOREST RESOURCES, INC., F/K/A HIGHLAND LAND &
          MINERALS, INC. ("HIGHLAND")
LEIDY HUB, INC. ("LEIDY")
DATA-TRACK ACCOUNT SERVICES, INC. ("DATA TRACK")
NATIONAL FUEL RESOURCES, INC. ("NFR")
HORIZON ENERGY DEVELOPMENT, INC. ("HORIZON")
SENECA INDEPENDENCE PIPELINE COMPANY ("SIP")
NIAGARA INDEPENDENCE MARKETING COMPANY ("NIAGARA")
UPSTATE ENERGY INC., F/K/A NIAGARA ENERGY TRADING INC. ("UPSTATE")
UNITED ENERGY, A.S., F/K/A PRVNI SEVEROZAPADNI
          TEPLARENSKA, A.S., ("UNITED")
NFR POWER, INC. ("POWER")
NATIONAL FUEL EXPLORATION CORP. ("NFEC")

         This certificate constitutes notice that the above named companies have, during the quarter ended December 31, 2000, issued, renewed or guaranteed the securities or instruments described herein which issue, renewal or guaranty was exempted from the provisions of Section 6(a) of the Act and was neither the specific subject of a declaration or application on Form U-1 nor included within the exemption provided by Rule U-48.

1.       Type of securities or instruments:  Four types:
         Security A:  Loans to and contributions by non-utility subsidiaries
                      made through the National Fuel Gas Company Money Pool,
                      operated in accordance with the Money Pool agreement filed
                      in SEC File No. 70-9153;
         Security B:  Demand Notes issued by United
         Security C:  Demand Notes issued by Horizon
         Security D:  Demand Notes issued by NFEC

2.       Issue, renewal or guaranty:
         Security A:  Issue
         Security B:  Issue
         Security C:  Issue
         Security D:  Issue

3.       Principal amount of each security:
         Security A:  See Exhibit A for detail of loans from and contributions
                      to the Money Pool.
         Security B:  See Exhibit B
         Security C:  See Exhibit C
         Security D:  See Exhibit D

4.       Rate of interest per annum of each security:
         Security A:  See Exhibit A
         Security B:  See Exhibit B
         Security C:  See Exhibit C
         Security D:  See Exhibit D

5.       Date of issue, renewal or guaranty of each security:
         Security A:  See Exhibit A (all transactions were made pursuant to the
                      system's current Money Pool Agreement dated March 23,
                      1998 as amended)
         Security B:  See Exhibit B
         Security C:  See Exhibit C
         Security D:  See Exhibit D

6.       If renewal of security, give date of original issue:  Not applicable

7.       Date of maturity of each security:
         Security A:  Demand Loans
         Security B:  Demand Loans
         Security C:  Demand Loans
         Security D:  Demand Loans

8.       Name of the person to whom each security was issued, renewed or
         guaranteed:
         Security A:  Not applicable (loans to and contributions by non-utility
                      participants of the system's Money Pool)
         Security B:  Horizon
         Security C:  NFG
         Security D:  Seneca

9.       Collateral given with each security, if any:  None

10.      Consideration received for each security:  Cash
         Security A:  See Exhibit A
         Security B:  See Exhibit B
         Security C:  See Exhibit C
         Security D:  See Exhibit D

11.      Application of proceeds of each security:   General business purposes

12.      Indicate by a check after the applicable statement below whether the
         issue, renewal or guaranty of each security was exempt from the
         provisions of Section 6(a) because of
         a.  the provisions contained in the first sentence of Section 6(b):
         b.  the provisions contained in the fourth sentence of Section 6(b):
         c.  the provisions contained in any rule of the Commission other than
             Rule U-48:  X

13.      If the security or securities were exempt from the provisions of
         Section 6(a) by virtue of the first sentence of Section 6(b),  give the
         figures  which  indicate  that the  security  or  securities  aggregate
         (together  with all  other  than  outstanding  notes  and  drafts  of a
         maturity  of nine  months or less,  exclusive  of days of grace,  as to
         which such company is primarily or secondarily  liable) not more than 5
         per  centum  of the  principal  amount  and  par  value  of  the  other
         securities of such company then outstanding: Not applicable.

14.      If the security or securities are exempt from the provisions of
         Section 6(a) because of the fourth  sentence of Section 6(b),  name the
         security outstanding on January 1, 1935, pursuant to the terms of which
         the security or  securities  herein  described  have been  issued:  Not
         applicable.

15.      If the security or securities are exempt from the provisions of
         Section 6(a) because of any rule of the Commission other than Rule U-48
         designate the rule under which exemption is claimed:  Rule 52.

SIGNATURES

         Pursuant to the requirements of the Public Utility Holding Company Act
of 1935,  the  undersigned  companies have duly caused this Form to be signed on
their behalf by the undersigned thereunto duly authorized.

NATIONAL FUEL GAS COMPANY


By:  /s/ P. C. Ackerman                
         P. C. Ackerman
         President



SENECA RESOURCES CORPORATION


By:  /s/ J. A. Beck                    
         J. A. Beck
         President

NATIONAL FUEL GAS SUPPLY CORPORATION


By:  /s/ D. J. Seeley                  
         D. J. Seeley
         President



NATIONAL FUEL RESOURCES, INC.


By:  /s/ W. M. Petmecky                
         W. M. Petmecky
         Secretary/Treasurer



HORIZON ENERGY DEVELOPMENT, INC.


By:  /s/ P. C. Ackerman                
         P. C. Ackerman
         President



HIGHLAND FOREST RESOURCES, INC.


By:  /s/ J. A. Beck                    
         J. A. Beck
         President



DATA-TRACK ACCOUNT SERVICES, INC.


By:  /s/ P. C. Ackerman                
         P. C. Ackerman
         President




LEIDY HUB, INC.


By:  /s/ W. E. DeForest                
         W. E. DeForest
         President



SENECA INDEPENDENCE PIPELINE COMPANY


By:  /s/ W. E. DeForest                
         W. E. DeForest
         President, Secretary and Treasurer



NIAGARA INDEPENDENCE MARKETING COMPANY


By:  /s/ C. H. Friedrich               
         C. H. Friedrich
         Treasurer



UPSTATE ENERGY INC.


By:  /s/ C. H. Friedrich               
         C. H. Friedrich
         Treasurer



UNITED ENERGY, A.S.


By:  /s/ P. C. Ackerman                
         P. C. Ackerman
         Director




NFR POWER, INC.


By:  /s/ W. M. Petmecky                
         W. M. Petmecky
         Secretary/Treasurer



NATIONAL FUEL EXPLORATION CORP.


By:  /s/ J. B. McCashin                
         J. B. McCashin
         President


Date:    February 27, 2001



        Company Key
                                                    Names Used In
        Company                                     Schedules For This Report
        National Fuel Gas Company                   NFG
        National Fuel Gas Distribution Corporation  NFGDC
        National Fuel Gas Supply Corporation        NFGSC
        Seneca Resources Corporation                Seneca
        Horizon Energy Development, Inc.            Horizon
        Data Track Account Services, Inc.           Data Track
        Highland Forest Resources, Inc.             Highland
        National Fuel Resources, Inc.               NFR
        Utility Constructors, Inc.                  UCI
        Leidy Hub, Inc.                             Leidy
        Seneca Independence Pipeline Company        SIP
        Upstate Energy Inc.                         Upstate
        United Energy, a.s.                         United
        National Fuel Exploration Corp.             NFEC