Marathon Petroleum — Ethics Grade F

Marathon Petroleum receives an overall ethics grade of F (18/100) on CancelCo's corporate accountability database. Sector: Energy. Market cap: Large Cap.

Category scores

• labor: 40
• privacy: 80
• consumer: 35
• environment: 5
• humanRights: 20

Documented incidents (3)

• Clean Air Act Violations (high, 2023) — The EPA found chronic violations of emission standards at five Marathon refineries. The facilities were emitting excessive benzene and volatile organic compounds into low-income neighborhoods, affecting public health.
• Secret Fuel Standard Lobbying (high, 2018) — Investigations revealed Marathon led a covert campaign to roll back national fuel efficiency standards (CAFE standards), utilizing dark money groups to pressure the administration to weaken environmental protections.
• Edwardsville Pipeline Burst (high, 2022) — A pipeline failure in Illinois spilled over 165,000 gallons of crude oil into the Cahokia Creek. Investigators found the pipe was corroded and the company had failed to implement adequate leak detection protocols.

Documented good deeds

• Renewable Diesel Conversion — Converted their Martinez refinery into a facility that produces renewable diesel from bio-based feedstocks like corn oil and tallow.

Ethical alternatives

• Ørsted — A former oil company that successfully transitioned to 100% renewable energy production.