By Claudia Assis
SAN FRANCISCO (MarketWatch) -- Crude-oil futures turned higher Tuesday, with the contract regained some footing amid commodity strength and a mixed bag for U.S. equities. Crude for May delivery CLK2 -0.48% advanced 15 cents, or 0.2%, to $102.62 a barrel on the New York Mercantile Exchange. It had been in the red during Asian and European market hours, and traded as low as $101.69 a barrel, according to FactSet Research.