CBC.ca | Canada's crude oil production fell in May to lowest level in almost 2 years ... CBC.ca Companies in the space like Royal Dutch Shell, Canadian Oil Sands and Suncor Energy have yet to release their official production estimates, but they are also in the midst of conducting or have already completed multi-week turnarounds at upgraders ... Canadian Natural, Cenovus return to oil sands sites, fires still burn UPDATE 1-CNRL says output at evacuated Alberta oil sands sites yet to resume 'Perfect storm' puts crude oil production at lowest point in almost 2 years |