Exhibit 99.6
CERTIFICATION PURSUANT TO RULE 13a-14 OR 15d-14 OF THE SECURITIES
EXCHANGE ACT OF 1934
I, Todd Takeyasu, certify that:
1. | I have reviewed this annual report on Form 40-F of Penn West Energy Trust; and |
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. |
Dated: September 15, 2009
/s/ Todd Takeyasu Todd Takeyasu Executive Vice-President and Chief Financial Officer of Penn West Petroleum Ltd. |