Marathon Petroleum Corporation — Ethics Grade D

Marathon Petroleum Corporation receives an overall ethics grade of D (32/100) on CancelCo's corporate accountability database. Sector: Energy. Market cap: Large Cap.

Category scores

• labor: 45
• privacy: 80
• consumer: 50
• environment: 20
• humanRights: 40

Documented incidents (3)

• Clean Air Act Settlement (high, 2023) — The company agreed to pay a $5 million penalty and invest $19 million in compliance measures to resolve alleged violations of the Clean Air Act at its refineries. The EPA cited flares as a major source of excess emissions including volatile organic compounds.
• Lobbying Against Fuel Standards (high, 2021) — Documented reports revealed the company led a covert lobbying campaign to roll back Obama-era fuel economy standards for automobiles. This effort included social media campaigns and direct political pressure to weaken climate regulations.
• Louisiana Pipeline Spill (medium, 2016) — A pipeline leak near New Orleans released thousands of gallons of gasoline, causing significant environmental damage to local marshlands. The incident raised questions about the maintenance of aging oil infrastructure.

Documented good deeds

• Biodiesel Conversion — Converted its Martinez refinery in California to a renewable diesel facility to reduce carbon intensity.

Ethical alternatives

• Vestas Wind Systems — Pure-play renewable energy provider with industry-leading circularity goals.