Shutterstock Opec-plus’ spare capacity is back in the limelight as some members continue to undershoot their quotas. The notion that Opec-plus will continue adding 400,000 barrels per day every month this year, leaving little spare, is causing a price frenzy.Saudi Arabia, as holder of the group's biggest slice of spare capacity, appears to be back in the driving seat. Save for later Print Download Share LinkedIn Twitter The Issue