Domestic oil production has increased by 40% during his term. Oil production had previously peaked in 1970, and fallen for years; levels haven't been this high since 1991.
Domestic natural gas production has also increased by around 45% during his term.
After decades of importing oil and fuel, the US has reduced its imports, and is on the verge of exporting more energy than it imports.
This boom in energy production has supposedly increased GDP by a whopping 0.7% since 2009. Much of it is in states with low population, like Montana. So it's a nice little bump -- emphasis on "little."
But hey, don't let facts get in your way.