(1) 500 billion Iraqi dinars (possibly $425 million). from
http://www.ibtimes.co.uk/mosul-seized-jihadis-loot-429m-city..., sourced to https://twitter.com/borzou/status/476433950123229184, http://www.worldtribune.com/2014/06/13/iraqi-army-collapses-...

(2) A large quantity of gold bullion. Iraq 'owns' about 66 tons, unknown amount vaulted in Mosul central bank (Wikipedia, 2013; http://www.bloomberg.com/news/2014-03-25/iraq-buys-1-56-bln-...)

(3) "Billions" of dollars in US military hardware, including Blackhawk, Bell 406, and Kawa helicopters, armored Humvee combat vehicles, heavy trucks, artillery, anti-tank weapons, and Russian tanks and arms.
http://www.worldtribune.com/2014/06/13/iraqi-army-collapses-...,
http://www.zerohedge.com/news/2014-06-10/al-qaeda-militants-..., https://twitter.com/AymanM/status/476829542309695488/photo/1, https://twitter.com/MiddleEast_BRK/status/476284390704967680..., http://www.theblaze.com/stories/2014/06/12/see-the-quintesse..., http://actualidad.rt.com/actualidad/view/131024-irak-eeuu-co..., many images sourced to http://justpaste.it/hasila (disturbing),