UPDATE 1-Marathon's 3rd qtr profit rises 75 pct on shale boost
October 30, 2014 at 11:58 AM EDT
HOUSTON, Oct 30 (Reuters) - Marathon Petroleum Corp. on Thursday posted third- quarter net income of $672 million, a 75 percent jump from the same period a year earlier, as cheap inland crudes from the shale revolution boost the profits of U.S. refiners.