A bit more on the Black Stuff
Japan consumes about 5 million barrels of oil a day, making it the third biggest consumer, with almost all of it coming from outside Japan.
Japan's sources of oil in 2007:
Saudi Arabia 28%
United Arab Emirates 25%
BTW - Japan is the largest customer of Kuwaiti oil followed by India, Singapore and South Korea. The US got 1.5% of it's oil in Dec 2008 from Kuwait.