In other news...
"Saudi Arabia has borrowed $4bn from local markets in the past year, selling its first bonds for eight years as part of efforts to sustain high levels of public spending as oil prices slump"
http://www.ft.com/cms/s/0/2fd630a8-2899-11e5-8db8-c033edba8a6e.html#axzz3fiQnL7tr
In summary such a low oil price is unsustainable for the Saudis.