Imperial Oil Limited
Approved Evidence
Added to Rotten Company: 9/1/2026
Conduct/Event period: January 28, 2023–February 4, 2023
Ongoing: No
Resolution status: Resolved
Resolution date: May 29, 2026
Imperial Oil subsidiary pleaded guilty over a Kearl industrial-wastewater overflow
Summary
At a May 29, 2026 hearing, Imperial Oil Resources Limited, a subsidiary of Imperial Oil Limited, pleaded guilty to violating a condition of its Environmental Protection and Enhancement Act approval after an industrial-wastewater overflow at the Kearl oil-sands site. The Alberta Energy Regulator reported that the overflow occurred between January 28 and February 4, 2023 and that the court imposed a $120,000 penalty. This record attributes the conviction to the named subsidiary. Primary source: https://www.aer.ca/about-aer/media-centre/news-releases/news-release-2026-06-11
Evidence Weight
98.30
Severity: high
Recency Weight: 98.29879062377917
File Weight: 1