A couple of sources in here, below the first few paragraphs:<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Energy_subsidies#Allocation_of_subsidies_in_the_United_States" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Energy_subsidies#Allocation_of...</a><p>This article on &#x27;de-facto&#x27; subsidies computed by the IMF that includes externalities such as pollution and global warming is also worth reading:<p><a href="http:&#x2F;&#x2F;www.theguardian.com&#x2F;environment&#x2F;2015&#x2F;may&#x2F;18&#x2F;fossil-fuel-companies-getting-10m-a-minute-in-subsidies-says-imf" rel="nofollow">http:&#x2F;&#x2F;www.theguardian.com&#x2F;environment&#x2F;2015&#x2F;may&#x2F;18&#x2F;fossil-fu...</a>