Exhibit G-1

National Fuel Gas Company
Organization Chart of Foreign Utility Company Ownership (FUCO)
As of September 30, 2001

                           ---------------------------
                            National Fuel Gas Company
                           ---------------------------

                                                     100%
                       ----------------------------------
                        Horizon Energy Development, Inc.
                       ----------------------------------

                                                     100%
                         -------------------------------
                          Horizon Energy Holdings, Inc.
                         -------------------------------

                                                     100%
                        ---------------------------------
                         Horizon Energy Development B.V.
                        ---------------------------------

                                                     100%
                            -------------------------
                             Teplarna Kromeriz, a.s.
                                     (FUCO)
                            -------------------------

Note: Percents reported represent percent of voting power as of September 30, 2001