The widely held opinion that Saudi Arabia, the biggest of the Gulf nations, hasn't taken in a single refugee may well be incorrect. Nabil Othman, acting regional representative to the Gulf region at the United Nations' refugee agency, UNHCR, told Bloomberg there were 500,000 Syrians in that country. Saudi Arabia, like all of the Gulf states, is not a signatory to the UN refugee convention, so these displaced people are not officially designated as refugees.
http://www.bloombergview.com/articles/2015-09-04/why-don-t-gulf-states-accept-more-refugees-An article giving possible reasons for Gulf states not taking in more refugees due to the potential for conflict based on existing demographics as the Gulf states already have a lot of foreign workers in proportion to locals, whereas there is apparently less of a risk in European countries where the refugees will be a very small percentage of the host population.
As I stated on another thread in relation to this topic, I live in London, and think the refugees are entitled to do what they need to do to secure the future of their children and if that means coming to London and reducing my standard of living, so be it. Refugee camps are no place for people to live long-term - they are unsafe and there are few prospects to improve your situation. Education becomes disrupted and women and girls especially are sexually exploited because they have nowhere to run and nowhere else to go. That was happening on a regular basis in refugee/ IDP camps in Sri Lanka.