EXHIBIT 32.1
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                               CEO 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 Annual Report of Advantage  Energy Income Fund
and Advantage  Oil & Gas Ltd. on Form 40-F for the fiscal year ending  December
31,  2007 as filed with the  Securities  and  Exchange  Commission  on the date
hereof (the "Report"),  I, Kelly Drader,  Chief Executive  Officer of Advantage
Oil & Gas  Ltd.,  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 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 Trust.


         Date:  March 28, 2008            /s/ Kelly Drader
                                         -----------------------------------
                                          Kelly Drader
                                          Chief Executive Officer of Advantage
                                          Oil & Gas Ltd. on behalf of Advantage
                                          Energy Income Fund