By Claudia Assis
SAN FRANCISCO (MarketWatch) -- Crude-oil futures trimmed gains Tuesday but stayed in the black and pushing towards $85 a barrel as U.S. stocks opened higher and the dollar was weaker. Crude for October delivery CL1V -0.73% , the new front-month contract, advanced 49 cents, or 0.6%, to $84.88 a barrel on the New York Mercantile Exchange. Gold traded lower after a string of records in previous sessions. Gold for December delivery GC1Z -0.59% declined $21.50, or 1.1%, to $1,870.20 an ounce on the Comex division of the Nymex.
