Iran and Saudi Arabia jockey for OPEC position

OPEC, the group that controls 40 percent of the world's oil, is trying to decide on its next leader.

Both Iran and Saudi Arabia want their candidates in the top position.

The last time the Secretary General position came up the deadlock lasted 3 years.

But that's not all they're arguing about at their meeting in Vienna.

Al Jazeera's Nicole Johnston has this report.