Horizon Oil Sands

[2] Horizon is owned and operated by Canadian Natural Resources.

The company holds leases that are estimated to contain approximately 14.4 billion barrels (2.29×10^9 m3) of bitumen initially in place (BIIP), with best estimate contingent resources other than reserves of 4.1 billion barrels (650×10^6 m3) of bitumen and 3.3 billion barrels (520×10^6 m3) of proved and probablereserves.

The Horizon Oil Sands are located on these leases just north of Fort McMurray, Alberta in the Athabasca region.

[1] On April 25, 2007, two employees were killed when a roof situated at the location collapsed.

[3] On September 3, 2008, a contract employee was killed when their backhoe overturned in a tailings pond.