The Saudis have an East-West pipeline system to the port of Yanbu on the Red Sea which is only a temporary measure in light of Obama's inability to forge an effective strategy against Iran. The neighboring United Arab Emirates also has export flexibility. It is nearing completion of the Abu Dhabi crude oil pipeline, which will bypass the strait to ship as much as 1.5 million bpd to the Indian Ocean.
Cf. http://www.ft.com/cms/s/0/ffcf3450-3890-11e1-9ae1-00144feabdc0.html#ixzz1imh2GnOS
The US and Israel are gearing up for a major missile defence exercise in the next few weeks. The drill, called “Austere Challenge 12”, is designed to improve defence systems and co-operation between the US and Israeli forces.