For the Defense Department, the largest consumer of energy in the United States, addiction to fuel has greater costs than the roughly $18 billion the agency spent on it last year.
By some estimates, about half of the U.S. military casualties in Iraq and Afghanistan are related to attacks with improvised explosive devices on convoys, many [...]

LONDON (AFP) — Oil prices dropped some two dollars on Monday on concerns that a deepening global economic downturn could spark a slump in demand for energy, analysts said.
The market was also weighed down by news of a possible resolution to the ongoing Russia-Ukraine gas supply crisis, they added.
Traders also tracked developments in the Middle [...]