TORONTO - Royal Dutch Shell Plc said on Saturday it expected some flaring at its Scotford facility in Alberta, Canada, due to the restart of units after planned work, according to a notice filed on a community information line.

Shell said it expected flaring to last for 48 hours beginning late Thursday afternoon as it begins restarting units at the refinery after scheduled maintenance.

The Scotford refinery itself has a capacity of 98,000 barrels a day. It is 100 percent owned by Shell.

The return from maintenance has taken longer than originally anticipated, causing shortages of gasoline and forcing Shell to ration fuel to gasoline stations in the network in the region and import supplies. (Reporting by Janet McGurty; Editing by John Picinich)