What are the subsidies?
Best I've heard of is the occasional tax break (reduction). Production taxes, lease sales, federal/state royalties, 'windfall profits' taxes, transportation taxes, fuel taxes, permit fees, reclamation bonds, etc., etc., etc.
The industry is one of the few taxed on par with tobacco, but it is taxed from prospect to the gas tank.
SO what are the subsidies?
Ethanol? NOT oil.