CERTIFICATION


REQUIRED
BY RULE 13a-14(A) or RULE 15d-14(a) OF THE


SECURTIES
EXCHANGE ACT OF 1934, AS ADOPTED PURSUANT TO


SECTION
302 OF THE SARBANES-OXLEY ACT OF 2002




I, Don
Klapko, certify that:




1.I have reviewed this
annual report on Form 40-F of Enterra Energy Trust;





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 13a-15(f)
and 15d-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
conclusions 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 the 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.


Signed
      “Don
      Klapko”Date:
      March 29, 2010
            
            Don
      Klapko
              President
      and Chief Executive Officer