World Oil: Tapped Out

By Paul Roberts for National Geographic

In 2000 a Saudi oil geologist named Sadad I. Al Husseini made a startling discovery. Husseini, then head of exploration and production for the state-owned oil company, Saudi Aramco, had long been skeptical of the oil industry’s upbeat forecasts for future production. Since the mid-1990s he had been studying data from the 250 or so major oil fields that produce most of the world’s oil. He looked at how much crude remained in each one and how rapidly it was being depleted, then added all the new fields that oil companies hoped to bring on line in coming decades. When he tallied the numbers, Husseini says he realized that many oil experts “were either misreading the global reserves and oil-production data or obfuscating it.”

Where mainstream forecasts showed output rising steadily each year in a great upward curve that kept up with global demand, Husseini’s calculations showed output leveling off, starting as early as 2004.

National Geographic