As seems to be happening on an almost clocklike annual basis, wildfires are again threatening oil sands production in Alberta. On May 29, Cenovus, the largest producer of oil sands bitumen via thermal steam injection (fired by natural gas) stated that it was shutting down its Christina Lake operations as a precautionary measure due to the proximity of a nearby wildfire, with a restart date yet to be determined. Based on the latest data available from the Alberta Energy Regulator (AER), output from Cenovus’s Christina Lake site averaged 239 Mb/d in March 2025 (rightmost column in chart below). This represents approximately 14% of Alberta's total bitumen production produced via thermal means during the month.

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