Regular gasoline in the U.S. has averaged $1.13 a gallon more than Brent crude, the global benchmark, so far in 2015, according to data compiled by Bloomberg based on AAA prices and Brent futures. That’s almost 20 cents a gallon higher than the average in the past 10 years. Brent crude has slumped 23 percent this year after falling 48 percent in 2014 on concern a global glut will persist as the Organization of Petroleum Exporting Countries pumps above its collective target and U.S. production stays near a three-decade high. Retail gasoline has declined less than 5 percent in 2015. The price difference has helped boost earnings of refineries including Tesoro Corp and Valero Energy Corp. Brent Prices Gasoline demand in the U.S. averaged 9.24 million barrels a day in the […]