Canadian Natural Resources Limited provides monthly production of Synthetic Crude Oil (SCO) at Horizon Oil Sands as follows:

SCO Production (bbl/d) Q1 2010: 86,995 Q2 2010: 99,950 July 2010: 93,300(i) August 2010: 50,500(i) September 2010: 108,600(i) Q3 2010: 83,809 (i) rounded to the nearest hundred

October production is expected to average approximately 87,500 bbl/d. While completing a required shut-down for repair of gas compressor seals, a number of additional maintenance items were proactively addressed and final winterization procedures were completed. Included in this work was repair of an exchanger leak in the Hydrogen Plant, which contaminated the Pressure Swing Adsorption beds. Steps are underway to recover from the contamination, however if a full recovery cannot be achieved, a complete change out of the absorber material is scheduled for mid-December 2010. In light of these Hydrogen Plant issues, Q4/10 production is expected to be between 90,000 bbl/d and 100,000 bbl/d and annual guidance has been narrowed to between 90,000 bbl/d and 93,000 bbl/d.

Tags: Canadian Natural Resources Ltd