I’ve also seen comments that they have financial assets “in the bank” so to speak that they could go 12-18 months of price war without much problem.
if you have the luxury of $741 billion in currency reserves then your pain threshold is a damn sight better than the competition.
http://www.forbes.com/sites/gauravsharma/2014/12/05/saudis-wont-relent-in-oil-market-tussle/3/