EXHIBIT 5.3
Principal Officers:
Harry Jung, P. Eng.
President, C.E.O.
Dana B. Laustsen, P. Eng.
Executive V.P., C.O.O.
Keith M. Braaten, P. Eng.
Executive V.P.
Officers / Vice Presidents:
Terry L. Aarsby, P. Eng.
Jodi L. Anhorn, P. Eng.
Neil I. Dell, P. Eng.
David G. Harris, P. Geol.
Myron J. Hladyshevsky, P. Eng.
Bryan M. Joa, P. Eng.
John H. Stilling, P. Eng.
Douglas R. Sutton, P. Eng.
James H. Willmon, P. Eng.
LETTER OF CONSENT
TO: UNITED STATES SECURITIES AND EXCHANGE COMMISSION
RE: CENOVUS ENERGY INC. - REGISTRATION STATEMENT ON FORM F-9
We hereby consent to the use of and reference to our name and our reports, and the inclusion and incorporation by reference of information derived from our reports evaluating a portion of Cenovus Energy Inc.'s petroleum and natural gas reserves as at December 31, 2009, in the registration statement on Form F-10 of Cenovus Energy Inc.
| Sincerely, | |
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| GLJ PETROLEUM CONSULTANTS LTD. | |
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| /s/ Harry Jung, P. Eng. |
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| Harry Jung, P. Eng. | |
| President & CEO | |
Calgary, Alberta
May 11, 2010
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4100, 400 - 3rd Avenue S.W., Calgary, Alberta, Canada T2P 4H2
o (403) 266-9500 o Fax (403) 262-1855 o GLJPC.com