DUBAI, United Arab Emirates — The United Arab Emirates said Tuesday it will leave OPEC effective May 1, stripping the oil cartel of one of its largest producers and further weakening its leverage over global oil supplies and prices. The UAE’s decision had been rumored as a possibility for some time, as it pushed back in recent years against OPEC production quotas it felt had been too low — meaning it wasn’t able to sell as much oil to the world as it had wanted. “Having invested heavily in expanding energy production capacity in recent years, the bigger picture is that the UAE has been itching to pump more oil,” Capital Economics wrote in an analysis. “The ties binding OPEC members together have loosened,” it said, particularly after Qatar withdrew from the cartel in 2019. Regional politics are also likely at play.…