All the above are correct, except that Argentina has no dollars to import natural gas or oil (and it needs both because so far it's not self-sufficient in either commodity), so it has a huge incentive to figure out how to make Vaca Muerta came alive.
If I were Cristina, I would be trying to figure out how to make it come alive, because if I were to, imagine how many people I could find work for (and thus votes) and perhaps even more importantly, how much money could I skim off the top if I made Vaca Muerta came alive!
She has a huge incentive to make this work, and she is being advised by a guy that knows a lot about this, the fellow who runs Vista Oil. YPF seems like a very good bet at its current price; then again, you could end up losing it all but what's investing if it's not rolling the dice and hoping for the best!