Oil will be replaced about as soon as we get our flying cars Popular Science Mag. promised us by 1999, back in the 60's.
Not for hundreds of years if ever will a better energy storehouse than a gallon of gas be produced.
Now, efficient us of same, that's the story.
Actually... the reason we don’t have flying cars is because of Democrats and ambulance chaser lawyers. They pretty much killed off most US general aviation makers in the 60s-80s.
Exactly...Alt. energy will have a place but for transportation petroleum fuels will power us most effiently for a long time.