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Form SC 13G/A ADVANTAGE OIL & GAS LTD. Filed by: Burgundy Asset Management Ltd. Feb 12, 2018 04:32PM
Form SC 13G/A ADVANTAGE OIL & GAS LTD. Filed by: Burgundy Asset Management Ltd. Feb 10, 2017 12:22PM
Form SC 13G/A ADVANTAGE OIL & GAS LTD. Filed by: Burgundy Asset Management Ltd. Mar 9, 2016 10:24AM
Form SC 13G ADVANTAGE OIL & GAS LTD. Filed by: Burgundy Asset Management Ltd. Feb 11, 2016 06:15AM