Cenovus said sales volumes in the fourth quarter were about seven per cent lower than
oilsands production due to the two - week shutdown and subsequent volume constraints on TransCanada Corp.'s Keystone pipeline following an oil spill in November in South Dakota.
Experts had long predicted the economy to bounce back from the second - quarter slump, which was largely
due to oil -
production shutdowns linked to May's Alberta wildfires and scheduled maintenance at
oilsands facilities.