OREANDA-NEWS. March 26, 2015. Royal Dutch Shell Plc will carry out a planned turnaround at its 255,000 barrel per day Scotford upgrader in northern Alberta during spring of this year, a company spokesman said on Wednesday. Shell spokesman Cameron Yost said the turnaround was an activity that took place every four to five years.

"We do have a turnaround this year. It's not small-scale maintenance," Yost said, although he declined to give details of how much production would be offline or how long the maintenance would last.