There was an article in The Guardian this past weekend about Saudi Aramco which estimated it's value at $10tn, which would definitely put it in a league of it's

There was an article in The Guardian this past weekend about Saudi Aramco which estimated it's value at $10tn, which would definitely put it in a league of it's own when it comes to total value. Saudi Aramco – the $10tn mystery at the heart of the Gulf state - http://www.theguardian.com/business/2016/jan/16/saudi-aramco-10-trillion-dollar-mystery-heart-of-gulf-state http://www.theguardian.com/business/2016/jan/16/saudi-aramco...