Harvey knocked almost 15% of U.S. refinery capacity out of commission, which threatens to boost fuel prices across the country. After slamming into Texas on Friday and causing massive flooding in Houston over the weekend, the storm was moving east on Sunday toward a refining hub near the Louisiana border. That could shut down even more of the U.S. energy infrastructure. Exxon Mobil Corp. closed its Baytown refinery, located on the Houston Ship Channel, when floodwaters paralyzed large portions of the area after Harvey was downgraded to a tropical storm from a hurricane. The plant is the second-largest refinery in the country, processing as much as 560,000 barrels of oil a day and feeding fuel into pipelines and barges that move it across the southeastern U.S. and up the East Coast. Harvey’s projected path as of Sunday night included an even bigger refinery in Port Arthur, Texas, that is owned by Saudi Arabian Oil Co. and produces 600,000 barrels of fuel a day. Several other companies confirmed that they stopped making fuel at plants in areas hit by Harvey, including Royal Dutch Shell PLC in Deer Park, Texas, and Brazil’s state-controlled oil company, Petróleo Brasileiro SA, in Pasadena, Texas. Those two plants produce a total of 435,000 barrels a day.