Controlled production was the order of the day, until the Saudis got THIS bee under their bonnet, "to protect their market share", although it is more likely intended to inflict as much financial harm on Iran and Russia as possible (it's becoming ever more harmful to the Saudis, too). Short of an all out war, and, for the Saudis, THAT's not really feasible, continued over-supply is all they've got left to "fight" with! Iran and Russia, on the other hand, may be disposed to launch physical attacks on Saudi oil fields. They are, in fact, busily stirring up Houhti rebels, in Yemen, right now, and we've all read about the recent rise in tensions between the Sunni and Shia sects, over the last several weeks. Whatever happens, it's shaping up to be messy. But, with the incredible amount of wealth currently being lost, it's difficult to believe that it can be allowed to go on, much longer.