WikiLeaks: Saudi Arabias oil reserves exaggerated

The US fears that Saudi Arabia, the world's largest crude oil exporter, may not have enough reserves to prevent oil prices escalating, confidential cables from its embassy in Riyadh show. The cables, released by WikiLeaks, urge Washington to take seriously a warning from a senior Saudi government oil executive that the kingdom's crude oil reserves may have been overstated by as much as 300bn barrels – nearly 40%.

It also reported major project delays and accidents as "evidence that the Saudi Aramco is having to run harder to stay in place – to replace the decline in existing production." While fears of premature "peak oil" and Saudi production problems had been expressed before, no US official has come close to saying this in public.

Jeremy Leggett, convenor of the UK Industry Taskforce on Peak Oil and Energy Security, said: "We are asleep at the wheel here: choosing to ignore a threat to the global economy that is quite as bad as the credit crunch, quite possibly worse."

Read more: The Guardian