Drillers, however given the oil/ gas glut around the globe and impending US rate hike perhaps the appropriate play is short. Keep in mind you could make the right call and lose money if you have not timed your trade correctly. "Oil glut to continue into 2017, says International Energy Agency" http://www.marketplace.org/2016/09/13/world/oil-glut-continue-2017-says-international-energy-agency
This is a difficult space because oil over $50 would bring the domestic shale players back online. Under $50, who knows.
Given that oil stocks have been getting killed by a glut, it's hard to see what impact any administration would have? Going crazy let's say he successfully does something like imposing a ban on all oil imports (anti-trade in general, not something he's specifically said he'd do), it still doesn't really change the picture much because the US is producing about what it uses, there would just be some second order inefficiency from sourcing location imbalances. Same picture with coal, it's dead because of the price of gas, not any administration action.
So far since Trump won the strongest sectors are: industrial metals (steel, aluminum), biotech, heavy construction machinery & suppliers, banks, insurance. and defense.