Moving on from that to nationalization per se.
You've probably all heard the old saw already: it's their oil, it belongs to them, blabbity blah. The people who say this are generally leftie activist types, and they usually leave out the big picture--which I myself didn't see until very recently.
It is in fact Venezuela's oil--but right now, the Venezuelan people don't have the industrial capability or the know-how to get at the oil by themselves. Leading to this dilemma:
If they go abroad to hire the needed industry and expertise, said industry and expertise will not come free. Venezuela will have to fork over a percentage of their oil wealth. But they will get some of that oil wealth right now.
If they don't hire out--if they keep the oil for themselves--then for the near future, Venezuela gets NONE of its own oil wealth. The oil sits useless under the ground because the people can't get to it, and the people go poor and hungry.
The lefties always paint it as exploitation by the rich and powerful. But in reality it's simply an unpleasant solution to a problem for which all the solutions are equally unpleasant.