Crude rose in Asian trade today, pushed up by ongoing tensions in West Asia and impact from Japan's nuclear crisis, analysts said.
New York's main contract, light sweet crude for delivery in April, gained $1.65 to $103.07 per barrel while Brent North Sea crude for May was up $1.56 to $116.46.
"The initial reaction to Japan is a sharp drop in oil demand in the short-term," said Jason Feer, analyst for Singapore-based Argus Media energy market analysts.
Tokyo shares ended the morning session up 1.77% today as investors welcomed a pledge by the Group of Seven major economies to stabilise currencies after Japan's massive earthquake.
The Nikkei index rose 158.26 points to 9,120.93 by the break.
Unrest in crude-producing Libya is also a factor behind the surge in oil prices, analysts said.
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The UN Security Council meeting has voted to permit "all necessary measures" to impose a no-fly zone, protect civilian areas and impose a ceasefire on Moamer Kadhafi's military.
Enforcement will rely on air power as the resolution rules out sending ground troops.
"It is likely that US and some Western countries may intervene in Libya, and as Kadhafi has the upper hand, it is closer to ending the civil war," Feer said.
Libya was producing 1.69 million barrels a day before the unrest, according to the International Energy Agency. Of this 1.2 million were exported, mostly to Europe. Other major customers are China and the United States.