“The Islamic State of Iraq and al-Shams (Isis) has become the richest terror group ever after looting 500 billion Iraqi dinars – the equivalent of $429M (£256m) — from Mosul’s central bank, according to the regional governor. Nineveh governor Atheel al-Nujaifi confirmed Kurdish televison reports that Isis militants had stolen millions from numerous banks across Mosul. A large quantity of gold bullion is also believed to have been stolen. Following the siege of the country’s second city, the bounty collected by the group has left it richer than al-Qaeda itself and as wealthy as small nations such as Tonga, Kiribati, the Marshall Islands and the Falkland Islands.”
http://www.businessinsider.com/430m-looted-from-mosuls-central-bank-2014-6