INSIGHT-Innovators toil to revive Canada oil sands as majors exit
June 19, 2017 at 01:00 AM EDT
CALGARY, Alberta/HOUSTON, June 19 (Reuters) - 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.