In the boreal forests and on the remote prairies of Alberta, a handful of firms are running pilot projects they hope will end a two-decade drought in innovation and stem the exodus of top global energy firms from Canada’s oil sands. They are searching for a breakthrough that will cut the cost of pumping the tar-like oil from the country’s vast underground bitumen reservoirs and better compete with the booming shale industry in the United States. If they fail, a bigger chunk of the world’s third-largest oil reserves will stay in the ground. Canada’s oil sands sector has become one of the biggest victims of the global oil price crash that began in 2014 when top OPEC producer Saudi Arabia flooded the market with cheap crude to drive […]