Wall Street Journal | Oil rallies as bullish signals promise second weekly gain Reuters But concerns over dented output from Libya, a key Mediterranean oil producer, the anticipation of stronger U.S. jobs data and expectations of further declines in the U.S. oil-rig count later on Friday lent support to prices. "Libya is really positive ... Oil Takes Big Swing in Opposite Direction Oil stages sharp comeback from losses Oil Prices Most Volatile Since 2009 |