The Guardian reports that the latest release by WikiLeaks of diplomatic cables show U.S. officials think that Saudi Arabia is overpromising on its capacity to supply oil. The actual cable are reporduced on the Guardian website here, here, here, and here. According to the cables, Sadad al-Husseini, a geologist and former head of exploration at the Saudi oil monopoly Aramco stated:

“Saudi Arabia might reach an output of 12m barrels a day in 10 years but before then – possibly as early as 2012 – global oil production would have hit its highest point. This crunch point is known as “peak oil”.”