Libya’s oil output falls more than half due to political standoff ReutersOil Holds Losses as Slipping Equities Vie With Stockpiles, Libya Yahoo FinanceLibya’s Political Feud Threatens Return of Oil Supply Chaos After Qaddafi BloombergU.S. crude oil rebounds nearly 2% on major supply disruption in Libya and Iraq output cut CNBCOil Holds Gain on Positive US Economic Data, Libya Disruptions Bloomberg