Arguably the primary reason why Israel holds off attacking - that and its modest satisfaction with the success of the combination strategy of cyber warfare attacks and assassinations of technical personnel.
You can see that the sanctions have taken about a million barrels a day - or about 40% of daily production denied in terms of sales.
That is significant - and a genuine success for Obama.
The hottest subject in oil deals today involves anybody who has been a regular buyer of Iran. All of these states are looking to replace - now.
And no, they don't all go running to the Saudis.
This chart is a month old. More recent news says roughly 50% drop in May-June alone. Not sure I buy that. Lots of desperate deals happening out there involving Iran. But clearly, the trend is downward and steep.
I honestly do believe that the Arab Spring is helping plenty. With Syria on the ropes, the anti-Iran long knives are out.