“They acted over the weekend, and I think the knee-jerk reaction is to make the quick but not necessarily correct inference that this is disadvantageous to Canadian energy producers,” said Brian Madden, chief investment officer with First Avenue Investment Counsel.Shares of Canada’s big oil companies lost ground on Monday. Canadian Natural Resources Ltd. fell 6%, while shares in Cenovus Energy Inc. lost 4.8% and Suncor Energy Inc. finished 1.7% lower.Overall, the TSX energy subindex was down 3.6%.The Februa ...