A. Jeffery Tonken
President, Chief Executive Officer & Chairman of the Board
Mr. Tonken is the President, Chief Executive Officer and Chairman of the Board of Birchcliff. He has more than 40 years of experience in the oil and natural gas industry and is one of the Corporation’s founders. Prior to creating Birchcliff, Mr. Tonken founded and served as President and Chief Executive Officer of Case Resources Inc., Big Bear Exploration Ltd. and Stampeder Exploration Ltd. Mr. Tonken was previously a Partner of the law firm Howard, Mackie (now Borden Ladner Gervais LLP). Mr. Tonken is also the Past Chair of the Board of Governors of the Canadian Association of Petroleum Producers (CAPP), and was the Chair in 2019. Mr. Tonken received his Bachelor of Commerce degree from the University of Alberta and his Bachelor of Laws degree from the University of Wales.