UAE leaves OPEC and OPEC+ in huge blow to global oil producers' group

DUBAI, April 28 (Reuters) - The United Arab Emirates said on Tuesday it quit OPEC and OPEC+, dealing a heavy blow to the oil exporting groups and their de facto leader, Saudi Arabia, at a time when the Iran war has caused a historic energy shock and unsettled the global economy.The stunning loss of the UAE, a longstanding OPEC member, could create disarray and weaken the group, which has usually sought to show a united front despite internal disagreements over a range of issues from geopolitics to production quotas.