Royal Dutch Shell Plc (RDSa.L) , the largest oil producer in the Gulf of Mexico, on Thursday canceled some customer shipments due to damages to offshore facilities from Hurricane Ida, signaling energy losses would continue for weeks. About three-quarters of U.S. Gulf of Mexico’s offshore oil output remain halted after Ida tore through in late August. Shell and other oil companies warned they could not yet say when full production would resume. The hurricane was one of the most devastating for oil producers since back-to-back storms in 2005 cut energy output for months. Shell owns about 80% of the Mars offshore oilfield, and in total pumps about 332,000 barrels of oil per day from its eight facilities in […]