EXHIBIT 3
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               CERTIFICATION REQUIRED BY RULE 13A-14(A) OR 15D-14
               OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED


CERTIFICATION

I, Douglas A. Proll, certify that:

1.     I have  reviewed  this annual  report on Form 40-F of  Canadian  Natural
       Resources Limited;

2.     Based on my knowledge, this report does not contain any untrue statement
       of a material  fact or omit to state a material  fact  necessary to make
       the  statements  made,  in light of the  circumstances  under which such
       statements  were made, not misleading with respect to the period covered
       by this report;

3.     Based on my knowledge,  the financial  statements,  and other  financial
       information  included in this  report,  fairly  present in all  material
       respects the financial  condition,  results of operations and cash flows
       of the issuer as of, and for, the periods presented in this report;

4.     The  issuer's  other  certifying  officer  and  I  are  responsible  for
       establishing  and  maintaining  disclosure  controls and  procedures (as
       defined in Exchange Act Rules  13a-15(e) and  15d-15(e)) )) and internal
       control over financial reporting (as defined in Exchange Act Rules 13(a)
       - 15(f) and 15(d) -15(f)) for the issuer and have:

       a)     Designed such disclosure controls and procedures,  or caused such
              disclosure  controls  and  procedures  to be  designed  under our
              supervision,  to ensure that material information relating to the
              issuer, including its consolidated subsidiaries, is made known to
              us by others  within  those  entities,  particularly  during  the
              period in which this report is being prepared;

       b)     Designed such  internal  controls over  financial  reporting,  or
              caused such  internal  control  over  financial  reporting  to be
              designed under our supervision,  to provide reasonable  assurance
              regarding  the   reliability  of  financial   reporting  and  the
              preparation  of financial  statements  for  external  purposes in
              accordance with generally accepted accounting principles;

       c)     Evaluated the effectiveness of the issuer's  disclosure  controls
              and procedures and presented in this report our conclusion  about
              the effectiveness of the disclosure  controls and procedures,  as
              of the end of the  period  covered by this  report  based on such
              evaluation; and

d)     Disclosed in this report any change in the issuer's internal control over
       financial reporting that occurred during the period covered by the annual
       report that has materially affected, or is reasonably likely to
       materially affect, the issuer's internal control over financial
       reporting; and

5.     The issuer's other certifying officer and I have disclosed, based on our
       most recent evaluation of internal control over financial reporting,  to
       the  issuer's  auditors  and the audit  committee  of issuer's  board of
       directors (or persons performing the equivalent functions):

       a)     All  significant  deficiencies  and  material  weaknesses  in the
              design or operation of internal control over financial  reporting
              which are  reasonably  likely to  adversely  affect the  issuer's
              ability  to  record,  process,  summarize  and  report  financial
              information; and

       b)     Any fraud,  whether or not material,  that involves management or
              other  employees  who  have a  significant  role in the  issuer's
              internal control over financial reporting.

Dated this 28th day of March, 2007.


/s/ Douglas A. Proll
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Douglas A. Proll
Chief Financial Officer and Senior Vice-President, Finance
(Principal Financial Officer),
Canadian Natural Resources Limited