Marathon Petroleum Corp MPC.N , the largest U.S. oil refiner, on Tuesday began cutting jobs across the company, according to people familiar with the matter, as the COVID-19 pandemic sapped demand for motor fuels. U.S. refiners have posted large losses this year as fuel consumption tumbled amid lockdowns and work-from-home policies to combat the spread of the coronavirus. Thin profit margins have been undercut by the need to operate plants at less than 80% capacity. Marathon officials are “communicating with our employees about measures we announced earlier this year to strengthen Marathon Petroleum for short-term and long-term success,” a spokeswoman said in a statement. She declined to comment on specific actions. The Findlay, Ohio-based company has been shedding units to improve results. It had 60,000 employees as of Dec. 31, with two-thirds in retail operations that are being acquired by 7-Eleven Inc, an arm of Japan’s […]