Saudis are desperate for investment capital for their sovereign fund; they figure they have a bout 10 year window to try and get those investments up to replace their oil business, which is going to decline rather steeply over the next decade. They now face a reverse of their heydays of the 1970's OPEC price increases, when the 'oil shortage' played an important role in bankrupting the Soviet Union and the Brezhnev Doctrine was no more. Now the Russian can use their oil as a weapon against them in the ME.