Here's a look at BP's annual review of world energy (sorry about the size, but you can blow it up on the Guardian site. It shows the U.S. once more leading the way in oil consumption - and by a hefty margin. World consumption fell in 2009, the second annual decline and no doubt the result of the recession.
--US 18,686 -4.9% 21.7%
--China 8,625 +6.7% 10.4%
--Japan 4,396 -10.7% 5.1%