UAE's departure from the OPEC oil cartel is not without precedence. Who could be next?

Jonathan Raa | Nurphoto | Getty Images The United Arab Emirates' shock decision to leave OPEC is reverberating across global energy markets, exposing fractures in the powerful oil cartel as production quotas risk prompting other members to follow suit. The country's decision follows weeks of missile and drone strikes by fellow OPEC member Iran, with the blockade of the Strait of Hormuz disrupting its exports, putting pressure on the backbone of its economy. …