Suncor Energy historical price data and SU charts. Free real-time prices, trades, and chat. Stock Description. Suncor Energy Inc, SU, Toronto, Common Stock Suncor Energy is a Canadian integrated energy company based in Calgary, Alberta. On April 13, 2012, Suncor paid a $500,000 fine after being found guilty of price-fixing in Ontario. Canadian Centre for Energy Information · History of the petroleum industry in S&P/TSX 60 companies of Canada (January 24, 2020). Get today's Suncor Energy Inc stock price and latest SU news as well as Suncor Energy real-time stock quotes, technical analysis, full financials and more. CAD , 15:59:57. Toronto, 15.07, 15.07, 15.18, 14,992,195, -15.81%, CAD, 16:55:00.