NEW : iReport : What are gas prices like where you live ? Obama promises to ensure companies do n't take advantage of U.S. consumers . Comment: `` We will be vigilant in monitoring the oil and gas markets , '' he says . He notes there are `` lawful reasons '' for increases in gasoline prices .
NEW : Obama promises to ensure companies do n't take advantage of U.S. consumers . Comment: `` We will be vigilant in monitoring the oil and gas markets , '' he says . He notes there are `` lawful reasons '' for increases in gasoline prices .