CERTIFICATION


I, Marie E. Trimboli, certify that:

     1.   I have  reviewed  this  annual  report on Form 10-K of BP Prudhoe  Bay
          Royalty Trust, for which The Bank of New York acts as Trustee;

     2.   Based on my  knowledge,  this  quarterly  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  the  light  of  the
          circumstances  under which such  statements  were made, not misleading
          with respect to the period covered by this quarterly report;

     3.   Based on my knowledge,  the financial  statements and other  financial
          information  included in this  quarterly  report fairly present in all
          material   respects  the  financial   condition,   cash  earnings  and
          distributions  and changes in trust corpus of the registrant as of and
          for the periods presented in this quarterly report;

     4.   I am responsible for establishing and maintaining  disclosure controls
          and  procedures  (as defined in Exchange Act Rules 13a-14 and 15d-14),
          or for causing such procedures to be established  and maintained,  for
          the registrant and I have:

          a)   designed such disclosure controls and procedures,  or caused such
               controls and  procedures to be designed,  to ensure that material
               information  relating  to the  registrant  is made known to me by
               others,  particularly  during the period in which this  quarterly
               report is being prepared;

          b)   evaluated  the  effectiveness  of  the  registrant's   disclosure
               controls and  procedures as of a date within 90 days prior to the
               filing date of this annual report (the "Evaluation Date"); and

          c)   presented  in  this  annual  report  my  conclusions   about  the
               effectiveness of the disclosure  controls and procedures based on
               my evaluation as of the Evaluation Date;

     5.   I  have  disclosed,  based  on  my  most  recent  evaluation,  to  the
          registrant's auditors:

          a)   all  significant  deficiencies  in the  design  or  operation  of
               internal  controls which could adversely  affect the registrant's
               ability to record,  process,  summarize and report financial data
               and have  identified for the  registrant's  auditors any material
               weaknesses in internal controls; and

          b)   any fraud,  whether or not material,  that  involves  persons who
               have a significant  role in the registrant's  internal  controls;
               and


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     6.   I have  indicated  in this  annual  report  whether  or not there were
          significant  changes in  internal  controls or in other  factors  that
          could significantly affect internal controls subsequent to the date of
          my most recent  evaluation,  including  any  corrective  actions  with
          regard to significant deficiencies and material weaknesses.

In giving the  certifications  in paragraphs 4, 5 and 6 above,  I have relied to
the extent I consider reasonable on information provided to me by BP Exploration
(Alaska) Inc.



Date: March 31, 2003                           /s/Marie E. Trimboli
                                               --------------------------------
                                                  Marie E. Trimboli
                                                  Assistant Vice President
                                                  The Bank of New York