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.

To view the latest public annual ranking of fossil fuel companies by size of reserves click here.

Fossil Free campaign groups, asset owners, non-profit organisations and the media can request a free copy of the latest Carbon Underground 200 list here.    Asset managers and consultant can only access the list via a paid subscription.