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                                                                    EXHIBIT 99.1

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

         In connection with the Quarterly Report of EXX INC, (the "Company") on
Form 10-Q for the period ending June 30, 2002 as filed with the Securities and
Exchange Commission on the date hereof (the "Report"), I, David A. Segal,
Chairman of the Board, Chief Executive Officer and Chief Financial Officer of
the Company, certify, to the best of my knowledge, pursuant to 18 U.S.C. Section
1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002,
that:

          1. The Report fully complies with the requirements of Section 13 (a)
             or 15 (d) of the Securities Exchange Act of 1934; and

          2. The information contained in the Report fairly presents, in all
             material respects, the financial condition and results of
             operations of the Company as of and for the period covered by
             the Report.



                                             /s/ David A. Segal
                                             --------------------------
                                             David A. Segal
                                             Chairman of the Board
                                             Chief Executive Officer
                                             Chief Financial Officer

August 13, 2002