OPEC, the group that controls 40 percent of the world's oil, is trying to decide on its next leader.<br /><br />Both Iran and Saudi Arabia want their candidates in the top position.<br /><br />The last time the Secretary General position came up the deadlock lasted 3 years.<br /><br />But that's not all they're arguing about at their meeting in Vienna. <br /><br />Al Jazeera's Nicole Johnston has this report.
