CGX is a Canadian public company whose shares began trading in May 1997 on the Canadian Dealer Network. On May 3, 2000, CGX shares commenced trading on the Canadian Venture Exchange (now called the TSX Venture Exchange), under the trading symbol OYL. From time to time, CGX shares trade over-the-counter (OTC BBS) in the United States under the symbol CGXEF. Please note that the reported bid-ask range can be significant and bears no relationship to the bid-ask on the TSX Venture Exchange.

On February 15, 2012, CGX was selected as a 2012 TSX Venture 50 ® company and effective February 21, 2012, CGX common shares were added to the Standard & Poor’s TSX Venture 30 Index.

CGX has 411,948,218 shares outstanding, 470,880,090 fully diluted.