Exhibit 5.3
CONSENT OF INDEPENDENT PETROLEUM ENGINEER
We hereby consent to the use and reference to our name and report evaluating a portion of Cenovus Energy Inc.’s (the “Corporation”) oil and gas reserves data, including estimates of proved reserves and probable reserves and related future net revenue as at December 31, 2024 and 2023, estimated using forecast prices and costs, and the information derived from our reports, as described or incorporated by reference in the Corporation’s Registration Statement on Form F-10.
| Yours truly, |
| GLJ LTD. |
| /s/ Patrick A. Olenick Name: Patrick A. Olenick, P.Eng. Title: Senior Vice
President, |
Dated: November 28, 2025
Calgary, Alberta
CANADA