Crude oil prices were up on Thursday for the seventh straight session amid data showing that US gasoline consumption is at 9.45 million barrels per day, an indication that high pump prices are not cutting into demand.  Brent crude for August delivery gained $1.50 to $72.91 per barrel on the International Petroleum Exchange in London.  August contracts for West Texas Intermediate crude added $1.21 to $73.40 per barrel on the New York Mercantile Exchange.  Meanwhile, Nymex unleaded gasoline July contracts were up 6.7 cents to $2.2700 per gallon.