Yes it means that the world oil supply will last a lot longer. However I am pretty sure that oil will still be a major fuel supply for a whole lot longer than I will be around. Maybe even longer than my grandkids and they are 1 and 4. And I am sure that the bleeding hearts will find some reason to complain about the new sources of fuel. Like now the wind turbines are killing all of the bats. So no matter what source of energy they come up with I am afraid oil will still be dominant for a long long time