EXHIBIT 3


  CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13A-14(A) OR 15D-14
                     OF THE SECURITIES EXCHANGE ACT OF 1934

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(s)  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  control 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(s) 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 26th day of March, 2008.


CANADIAN NATURAL RESOURCES LIMITED


By:  /S/ Douglas A. Proll
     -------------------------------------------------
     Name:  Douglas A. Proll
     Title: President and Chief Operating Officer
            Chief Financial Officer and Senior
            Vice-President, Finance (Principal Financial
            Officer)