By Tyler Bridges, The Miami Herald Feb. 12--CARACAS -- Prices on oil futures rose Monday following yet another threat by Venezuelan President Hugo Chavez to cut off oil exports to the United States -- even though analysts said they believe he's bluffing.

CARACAS, Venezuela _ Prices on oil futures rose Monday following yet another threat by Venezuelan President Hugo Chavez to cut off oil exports to the United States _ even though analysts said they believe he's bluffing.