"The Air Force consumes more petroleum each year than
any other agency in the U.S. government, and thus is the most
susceptible to energy-price volatility and disruption of logistics
lines. Each $10 increase in the price of a barrel of oil
equates to a $600 million increase in fuel costs to the Air
Force."
Source: Air Force Chief of Staff Gen.
Norton A. Schwartz at the 38th Institute for Foreign Policy
Analysis-Fletcher Conference on National Security, Strategy and
Policy.