Exhibit 99.1

                            CERTIFICATION PURSUANT TO
                              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 Colonial  Gas  Company  (the
"Corporation")  on Form 10-Q for the period  ending  September 30, 2002 as filed
with the Securities and Exchange  Commission on the date hereof (the  "Report"),
I,  Nickolas  Stavropoulos,   President  and  Chief  Operating  Officer  of  the
Corporation, certify, 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 of 1934, amended; and

          (2) The information  contained in the Report fairly  presents,  in all
     material respects, the financial condition and results of operations of the
     Corporation.








                                         By:      /s/Nickolas Stavropoulos
                                                  ------------------------
                                         Name:    Nickolas Stavropoulos
                                         Title:   President and Chief Operating
                                                  Officer
                                         Date:    November 14, 2002