Filed Pursuant to Rule 433

Registration No. 333-177401
November 10, 2011

Canadian Natural Resources Limited

Pricing Term Sheet

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Note:  A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time.

CREDIT RATINGS

Our senior unsecured long-term debt securities are rated “Baa1” by Moody’s Investors Service, Inc. (“Moody’s”) with a stable outlook, “BBB+” by Standard & Poor’s Ratings Services (“S&P”) and “BBB (high)” with a stable trend by DBRS Limited (“DBRS”).  S&P assigns a rating outlook to the company and not to individual debt instruments.  S&P has assigned a stable outlook to the company.  Credit ratings are intended to provide investors with an independent measure of credit quality of any issue of securities.

Moody’s credit ratings are on a long-term debt rating scale that ranges from Aaa to C, which represents the range from highest to lowest quality of such securities rated.  A rating of Baa1 by Moody’s is within the fourth highest of nine categories and is assigned to the debt securities which are considered medium-grade obligations, i.e., they are subject to moderate credit risk.  Such securities may possess certain speculative characteristics.  Moody’s applies numerical modifiers 1, 2 and 3 in each generic rating classification from Aa through Caa in its corporate bond rating system.  The modifier 1 indicates that the issue ranks in the higher end of its generic rating category, the modifier 2 indicates a mid-range ranking and the modifier 3 indicates that the issue ranks in the lower end of its generic rating category.  A Moody’s rating outlook is an opinion regarding the likely direction of a rating over the medium term.

S&P’s credit ratings are on a long-term debt rating scale that ranges from AAA to D, which represents the range from highest to lowest quality of such securities rated.  According to the S&P rating system, debt securities rated BBB exhibit adequate protection parameters.  However, adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity of the obligor to meet its financial commitments on the debt securities.  The ratings from AA to CCC may be modified by the addition of a plus (+) or minus (–) sign to show relative standing within the major rating categories.  An S&P rating outlook assesses the potential direction of a long term rating over the intermediate term.  In determining a rating outlook, consideration is given to any changes in the economic and/or fundamental business conditions.

DBRS’ credit ratings are on a long-term debt rating scale that ranges from AAA to D, which represents the range from highest to lowest quality of such securities rated.  According to the DBRS rating system, debt securities rated BBB are of adequate credit quality.  The capacity for the payment of financial obligations is considered acceptable, though may be vulnerable to future events.  The assignment of a “(high)” or “(low)” modifier within each rating category indicates relative standing within such category.  The rating trend is DBRS’ opinion regarding the outlook for the rating.

The credit ratings accorded to our debt securities by the rating agencies are not recommendations to purchase, hold or sell the debt securities inasmuch as such ratings do not comment as to market price or suitability for a particular investor.  Any rating may not remain in effect for any given period of time or may be revised or withdrawn entirely by a rating agency in the future if in its judgment circumstances so warrant, and if any such rating is so revised or withdrawn, we are under no obligation to update this prospectus supplement.

This communication is intended for the sole use of the person to whom it is provided by us.

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The Issuer has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates.  Before you invest, you should read the prospectus in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering.  You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov.  Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling J.P. Morgan Securities LLC collect at (212) 834-4533, BNP Paribas Securities Corp. toll-free at 1-800-854-5674 or RBC Capital Markets, LLC toll-free at 1-866-375-6829.

ANY DISCLAIMERS OR OTHER NOTICES THAT MAY APPEAR BELOW ARE NOT APPLICABLE TO THIS COMMUNICATION AND SHOULD BE DISREGARDED.  SUCH DISCLAIMERS OR OTHER NOTICES WERE AUTOMATICALLY GENERATED AS A RESULT OF THIS COMMUNICATION BEING SENT VIA BLOOMBERG OR ANOTHER EMAIL SYSTEM.

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