TORONTO — Some of the most active companies traded Friday on the Toronto Stock Exchange: Toronto Stock Exchange (21,737.53, down 57.03 points): Canadian Natural Resources Ltd. (TSX:CNQ). Energy. Down 33 cents, or 0.34 per cent, to $96.72 on 16.6 million shares. Suncor Energy Inc. (TSX:SU). Energy. Down 31 cents, or 0.66 per cent, to $46.51 […] Read The Rest at :