US oil is fracked, which means that to get out of the microscopic fissures in the rocks only the lighter stuff comes out.

This makes excellent gasoline. By the way, this is also why we've become a CH4 power house.

Unfortunately, the US runs on diesel. We don't produce much heavy oil so we import it.

net it basically cancels out depending on interest rates, price of oil and who's in charge in DC.

Fracking, anyway, is an economic mirage enabled by cheap credit and expensive oil. Fracking sucks because the wells don't produce much.