opec numbers
In November 2014, the International Energy Agency (IEA) estimated that OPEC's effective spare capacity, adjusted for ongoing disruptions in countries like Libya and Nigeria, was 3.5 million barrels per day (560,000 m 3 /d) and that this number would increase to a peak in 2017 of 4.6 million barrels per day (730,000 m 3 /d).