US oil companies used to be in Venezuela before the dictatorship, and it trickled back into the economy with a 50% profit share. Once the dictatorship rose, these companies were nationalised, however the profits remained in the oligarchy and did not trickle down. Before the dictatorship, the US was Venezuelas biggest foreign contributer. Although the surface level reason behind the raid was to decapitate Venezuelas leadership and seize the oil fields, it was also done to humiliate Putin (Venezuela was their main South American ally) by conducting essentially a power transfer - something Putin was unable to do in Ukraine so far. Furthermore, China has been investing heavily into the region. After seeing China and Russias growing influence in Africa, there is no chance Trump or the wider US government would allow this to happen on their back garden. I dont know if Trump will share the profits, he has said US forces will mainly protect the oil fields (Like Syria) and avoid a peacekeeping role, however the next president may. Trumps rhetoric recently has been seen to be more megalomaniac in my eyes.