November 12, 2001

Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, NW
Washington, DC  20549

                       Interim Report Under Rule 24 of the
                   Public Utility Holding Company Act of 1935
                              Columbia Energy Group
                              801 East 86th Avenue
                             Merrillville, IN 46410

                                File No. 70-9131


Gentlemen:

        In compliance with the terms and conditions of Rule 24 under the Public
Utility Holding Company Act of 1935, and the Orders of the Commission dated May
6, 1998, authorizing the activities as more fully described in the Joint
Application/Declaration, as amended, the undersigned hereby certifies to the
Commission that:


                        Confidential treatment requested.



                                    Very truly yours,

                                    Columbia Energy Group

                                    By: /s/ Jeffrey W. Grossman
                                        ----------------------------------------
                                        Jeffrey W. Grossman
                                        Vice President and Controller