Islamic State rigs currency rates in Mosul to prop up finances

ISIS has started to attempt to control the Iraqi dinar and manipulate its exchange rate in order to compensate for losses after the coalition forces bombed the Iraqi central bank. This strike destroyed ISIS' stockpile of foreign currency. This is not the only financial institution coalition forces have struck. "Since October the coalition says it has destroyed at least 10 "cash collection points" estimated to contain hundreds of millions of dollars." This and the flood of oil to the market brought on by a slowing Chinese economy and Iran entering the market has led to a decline in their oil revenues.
Evidence going after ISIS' financial structure is hurting them is also found in the way they are conducting business. They are selling their products for dollars but paying their employees in dinars and charging a rate to exchange dinars to dollars higher than the rate instituted by the Iraqi government. ISIS is also using another currency trick to raise money by minting it's own coins. The consistency, purity, and weight of the metal used for the coin making is as yet unknown, so there is no reliable evaluation of the worth of the coins. There is also the question of exactly how many of these coins are in circulation. This may be nothing more than a propaganda trick to try to give ISIS more legitimacy as a State (every nation has it's own currency). The combination of all of these things shows that ISIS is having problems funding itself and is looking for ways to increase it's revenue to support it's fighters and leaders.