Hurricane Harvey likely to boost gas prices for US drivers

Hurricane Harvey could cause U.S. gasoline prices to rise, with the storm expected to hit a refinery-rich stretch of the Gulf Coast.
 Some refineries are expected to shut down until the storm passes, possibly disrupting gasoline supplies.
 Wholesale gasoline futures rose Thursday by 5 cents, or 3 percent, to $1.66 per gallon, and experts say that will quickly show up on service-station signs.
 Patrick DeHaan, an analyst with GasBuddy, says Harvey could show up in reta