Navigation Menu

For a spreadsheet of the top 200 fossil fuel companies by size of reserves click here.

The Carbon Underground 200 is an annually updated listing of the top 100 public coal companies globally and the top 100 public oil and gas companies globally, ranked by the potential carbon emissions content of their reported reserves. The list is produced and maintained by Fossil Free Indexes, LLC. Divestment campaigns across the globe are using this list as the definition for “fossil fuel companies” in their divestment ask.

We’ve also started a working spreadsheet called “The Dirt: On the Top 200 Companies.” Here you can find articles and notes on each company and their dirty climate impact.