There is always one thing that separates oil from other commodities and that is strife, from the WSJ:
Oil prices rose Tuesday on concerns about production in Libya and Brazil, though the continued global oversupply of crude limited price gains.
Libya’s oil production will drop by about 70,000 barrels a day to less than 400,000 barrels a day after the Eastern export terminal of Zueitina was blocked by an armed militia, a spokesman for Libya’s National Oil Co. said Tuesday.