Reuters | Asian shares surrender gains as oil prices retreat Reuters Oil markets jumped as much as 7 percent on Monday as speculation about falling U.S. shale output fed the notion that crude prices may be bottoming after their 20-month collapse. But they retreated on Tuesday on concern that any cuts to U.S. production ... Asian shares give up recent gains as oil retreats FTSE 100 closes higher as oil recovers, but pound slides as Boris backs Brexit Brexit and oil take gloss off FTSE 100's sterling week |