The US military is completely addicted to oil. Its oil consumption for aircraft, ships, ground vehicles and facilities makes the Pentagon the single largest oil consumer in the world.
By the way, according to the 2006 CIA World Factbook rankings there are only 35 countries (out of 210) in the world that consume more oil per day than the Pentagon.
According to recently released "Annual Energy Management Report", in Fiscal Year 2006 the Pentagon consumed 320,000 barrels per day of site delivered oil, compared to about 360,000 barrels per day in 2005.
[Excerpt of an article by Sohbet Karbuz, Energy Bulletin]