EXHIBIT 32.2
                                                                   ------------


                                CFO 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
(the  "Trust")  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, Peter Hanrahan,  Vice President,  Finance
and Chief Financial 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/ Peter Hanrahan
                                            ----------------------------------
                                            Peter Hanrahan
                                            Vice-President, Finance and
                                            Chief Financial Officer of
                                            Advantage Oil & Gas Ltd. on behalf
                                            of Advantage Energy Income Fund