[appeal2]

There's 180 billion to 1 trillion barrells sitting in the Albert tar sands. There's another several trillion sitting in the oil shale deposits out west. Are we running out?

[jaime1959]

Yeah, but the cost of extracting that oil is a heck of a lot more expensive than it is pumping from liquid reserves.

[CROSSHIGHWAYMAN]

There's 180 billion to 1 trillion barrells sitting in the Albert tar sands. There's another several trillion sitting in the oil shale deposits out west. Are we running out?

The continental shelfs all around the world have yet to be tapped.