In what appears to be a Doha party-pooping statement, Saudi deputy crown prince Mohammed bin Salman stated unequivocally that The Kingdom won't restrain its oil production unless other producers, including Iran, agree to freeze output at a meeting this weekend in Doha. This a major problem because - if you remember - this week's melt-up in oil (and thus stocks) was predicated on an anonymous diplomat cited by Interfax saying a deal will get done without Iran (which the Russians refused to confirm). All that hope crushed by a reality that has been painfully obvious that no side will be given in the Iran-Saudi tete-a-tete... and now, as Citi warned "expect a sharp sell-off."