Canadian Natural Resources Resumes Ops in Alberta

Canadian Natural Resources announced that Synthetic Crude Oil ("SCO") sales have recommenced from its Horizon Oil Sands operation in Northern Alberta.

On August 16, 2011, Canadian Natural successfully and safely resumed production at Horizon from the fire that occurred in the coker unit on January 6th, 2011. Production for the past four days has consistently averaged approximately 75,000 bbl/d of SCO. Ramp up to full production capacity of 110,000 bbl/d of SCO is expected in the next week. First pipeline deliveries commenced on August 18, 2011.