EXHIBIT 32.1
                                                                   ------------


                               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 (the
"Trust"),  Advantage Oil & Gas Ltd. and Advantage  ExchangeCo Ltd. on Form 40-F
for the fiscal year ending  December 31, 2006 as filed with the  Securities and
Exchange  Commission  on the date  hereof  (the  "Report"),  I,  Kelly  Drader,
President and 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 26, 2007                       /s/ Kelly Drader
                                            -------------------------------
                                            Kelly Drader
                                            President and Chief Executive
                                            Officer of Advantage Oil & Gas
                                            Ltd. on behalf of Advantage Energy
                                            Income Fund