Iran/Venezuela facts of the day

Iran was once one of the key oil suppliers to the world. No longer. Its exports, constrained by sanctions, amount to less than 2 per cent of global supplies, most of which go to China at discounted prices.

A similar change has taken place in Venezuela. Once a star of world oil and one of the founding members of Opec, today it can hardly even be called a petrostate. It produces less oil than the US state of North Dakota and a quarter as much as neighbouring Brazil.

Here is more from Daniel Yergin at the FT.