Cenovus Energy Inc.

ViolationTracker: 39 safety-related offense records spanning OSHA workplace safety, PHMSA pipeline safety (Calumet Superior LLC, Superior Refining Company), and FRA railroad safety violations

Downstream refinery throughput of 710,700 bbl/day across North American refineries including Lima Refining (OH), Toledo Refinery, Superior Refinery, and Canadian operations; $169M EPA air pollution penalty against Lima Refining (2024)

Cenovus Energy operates a carbon-intensive portfolio of oil sands extraction and refining assets. In 2023, the company reported total Scope 1 and 2 emissions of approximately 26.6 million tonnes of CO2 equivalent, with an emissions intensity of 0.20 tCO2e per barrel of production. This intensity is significantly higher than that of many conventional oil and gas peers, placing it among the most carbon-intensive producers in its sector.

The company has faced substantial regulatory penalties for air pollution violations at its U.S. refineries. In September 2024, the U.S. EPA and Department of Justice announced a settlement with Cenovus’s Lima Refining subsidiary, which will pay a $19 million penalty and spend an estimated $150 million on capital investments to address violations of the Clean Air Act. The EPA stated the refinery had unlawfully exposed the surrounding community to toxic benzene emissions and other hazardous pollutants. Concurrently, the company’s Superior, Wisconsin, refinery is facing dozens of alleged air pollution violations from state regulators, with allegations suggesting a pattern of failing to meet permit requirements designed to protect public health.

While Cenovus has set a 2035 emissions reduction target, its current trajectory and ongoing regulatory non-compliance indicate a systematic failure to manage its outsized emissions footprint. The company’s climate strategy remains heavily reliant on carbon capture and storage, a technology not yet deployed at the scale required to materially alter the emissions profile of its core oil sands operations.

Cenovus Energy has accumulated over $197 million in environmental penalties across at least 15 enforcement records documented by ViolationTracker. This includes a single air pollution violation penalty of $169 million. In September 2024, the U.S. Environmental Protection Agency and Department of Justice announced a settlement with Cenovus subsidiary Lima Refining Company (LRC) for violating emissions rules. The company agreed to pay a $19 million civil penalty and implement an estimated $150 million in capital investments to reduce harmful air pollutants.

The company has also been penalized for major spill incidents. In April 2024, Cenovus was ordered to pay a $2.5 million fine for its role in the largest offshore oil spill in Newfoundland and Labrador history, which occurred in November 2018. The incident involved the uncontrolled release of approximately 250,000 liters of crude oil into the ocean from a subsea flowline. In August 2025, a shareholder advocacy group filed a greenwashing complaint with Alberta’s securities watchdog, alleging Cenovus misled investors about its environmental performance and transition plans.