NEW YORK ( Reuters ) - Brent crude oil reversed losses climbing Movement.up.gain back $ 104.76 a barrel on 2013 , as fighting Civil.unrest in Iran and deteriorating relations Geopolitical.tension between Iraq and the Libya ignited new fears of supply restrictions Cause.movement.down.loss in the market .

Production of oil has risen Movement.up.gain steadily , climbing Movement.up.gain to nearly 1.8 billion gallons in 2013 from 1.1 billion gallons in 2012 , according to the National Biodiesel Board .

NEW YORK ( Reuters ) - Brent crude oil reversed losses climbing Movement.up.gain back $ 107.89 a barrel on Friday , as fighting Civil.unrest in Libya and deteriorating relations Geopolitical.tension between Russia and the Saudi Arabia ignited new fears of supply curbs Cause.movement.down.loss in the market .

Domestic U.S. output has rebounded Movement.up.gain by almost 15 % since the most recent low Position.low in mid-2016 , and increasing Movement.up.gain drilling activity for new production means output is expected to grow Grow.strong further , as producers are attracted by climbing Movement.up.gain prices .

Oil prices rose Movement.up.gain sharply on Thursday with Brent crude climbing Movement.up.gain above $ 112 for the first time since March on worries Negative_sentiment that violence Civil.unrest in Iraq could disrupt Cause.movement.down.loss supplies .