By Claudia Assis
SAN FRANCISCO (MarketWatch) -- Oil futures returned to the black Tuesday after a dip in early floor trading. Crude for May delivery CLK2 +0.17% rose 26 cents, or 0.2%, to trade at $107.35 a barrel on the New York Mercantile Exchange. Crude dipped as low as $106.67 a barrel earlier. Oil settled modestly higher on Monday after a speech by U.S. Federal Reserve Chairman Ben Bernanke that confirmed, in the markets' view, that interest rates will remain low for some time, benefiting assets such as commodities and equities.
