$40B / year actually seems to be a high estimate for revenue: http://www.worldstopexports.com/worlds-top-oil-exports-country/ http://www.worldstopexports.com/wo

$40B / year actually seems to be a high estimate for revenue: http://www.worldstopexports.com/worlds-top-oil-exports-country/ http://www.worldstopexports.com/worlds-top-oil-exports-count... This has $27B in 2016, which is a 73% drop from 2012. You're probably right that it's a significant chunk of money for them, especially when they've recently lost 3/4s of their market share.