Syncrude’s Coker 8-1 Returns to Operation Following Turnaround

CALGARY, ALBERTA–(Marketwired – Aug. 27, 2013) – Canadian Oil Sands Limited (TSX:COS) –

All figures below gross to Syncrude unless otherwise indicated.

Canadian Oil Sands (“COS”) today announced that the turnaround of Coker 8-1 has been completed and the unit is back in operation.

Canadian Oil Sands Limited

Canadian Oil Sands is a pure investment opportunity in light, sweet crude oil. Through our 36.74% interest in the Syncrude project, we offer a solid, robust production stream of fully upgraded crude oil, exposure to future crude oil prices, potential growth through high-quality oil sands leases and an attractive dividend.

For more information about Canadian Oil Sands please visit our web site at www.cdnoilsands.com.