Fossil Fuel Reserves

http://www.physics.emich.edu/ebehringer/FossilFuels/overview_fossilfuels.html

http://www.solcomhouse.com/fossilfuels.htm

http://www.umich.edu/~gs265/society/fossilfuels.htm

http://www.kcpc.usyd.edu.au/discovery/9.2.2/9.2.2_OilReserves.html