U.S. crude rose nearly 2 percent Monday, recovering slightly after moving within a hair of 11-year lows, but analysts and traders said it is still too early to declare the market has reached its bottom. Both U.S. and global benchmark Brent crude have been tumbling downward since an OPEC meeting Dec. 4 at which the oil-producing countries removed their production ceiling, exacerbating global crude oversupply. Early in the day, both Brent and U.S.