TDW,

If you account for direct subsidies, tax breaks and the cost of environmental damage, including AGW, the oil companies are seen to receive subsidies amounting to trillions of dollars a year.

http://www.politicususa.com/2015/06/09/report-shows-oil-industry-benefits-5-3-trillion-subsidies-annually.html

In 2015 these subsidies amounted to $5.3 trillion (US).