MIght there be more oil than previously thought?

A quick look at the oil market:Saudi official: 82% of crude is untapped - The Boston Globe: "The world has tapped only 18 percent of the total global supply of crude, a leading Saudi oil executive said yesterday, challenging the notion that supplies are petering out."And from the Gulf Times:"Jum’ah’s estimates show a potential of 4.7tn barrels of oil, “or more than 140 years of supply at today’s