CNQ Canadian Natural Resources Ltd

Canadian Natural Resources Limited (TSX: CNQ) (NYSE: CNQ) ("Canadian Natural" or the "Company") announces monthly production of Synthetic Crude Oil ("SCO") at Horizon Oil Sands as follows:

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Month                                                SCO Production (bbl/d)
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Q1 2010                                                            86,995
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Q2 2010                                                            99,950
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July 2010                                                          93,300(i)
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August 2010                                                        50,500(i)
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September 2010 forecast                                           108,800(i)
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(i)rounded to the nearest hundred

The maintenance required to address localized pipe wall thinning limited to the amine unit, which required a plant wide shut down, was successfully completed in mid August and resulted in lower average volumes for that month. September 2010 volumes were near design capacity. While the plant's reliability advances, the Company continues to focus on optimizing operations and will implement strategic maintenance when necessary. The Company targets production rates at design capacity for October 2010 and the remainder of 2010.

Canadian Natural is a senior crude oil and natural gas production company, with continuing operations in its core areas located in Western Canada, the U.K. portion of the North Sea and Offshore West Africa.

Contacts: John G. Langille Vice Chairman Steve W. Laut President Corey B. Bieber Vice-President, Finance & Investor Relations Canadian Natural Resources Limited 2500, 855 2nd Street S.W. Calgary, Alberta, T2P 4J8 Canada (403) 514-7777 ir@cnrl.com www.cnrl.com