So even though the Obama regime isn't BFFs with the Iranian Mullahs, they look like they're going out on a date. OK - action, reaction. What's the reaction?
First, Saudi Arabia is almost certainly to buy as many bombs from Pakistan as they're willing to sell. They may even look to North Korea for some. The Gulf will see a flurry of proliferation. After all, if Kuwait had had nukes, then Saddam wouldn't have invaded.
Second, Israel is practising long range air strikes. They're going to hit somewhere, after flying over Saudi territory. The question is where? The attack has to cause serious damage to the ability of Iran to continue its nuclear program. But the nuke facilities are said to be buried under 20 or 30 feet of bedrock. Maybe even an Israeli nuke wouldn't take them out, and dropping one of those is a "red line" that a lot of folks wouldn't want to see crossed.
I think a strike is certain, and close (it won't happen until there's a hard agreement between Tehran and Washington, but once that deal is inked it might happen in a week or two; fruits of our "Smart" Diplomacy, no doubt).
But the strike won't aim for the heavily defended nuclear facilities. Instead, it will aim to shut down all oil import/export from the entire nation of Iran. Port facilities (and in particular, oil tanker loading facilities) are hard to defend (stuck way out in the ocean so that super tankers can load/unload. Low level "under the radar" strikes over the Persian Gulf are much more likely to be undetected than flying hundreds of miles over Iranian territory. It's a straight shot from Israel over Saudi Arabia to the sea (and back).
And shutting down all the Iranian oil will do a couple of things. Firstly, it will seize up money flows needed for the fabulously expensive enrichment and bomb building. Secondly, it will increase discontent within Iran. The regime there is already unpopular; after a short-lived bump of approval ("We wuz attacked!"), the lack of cash will bite, and bite hard. Expect unrest 3-6 months after the bombs fall. Thirdly, Saudi Arabia can pump oil to make up for the lost Iranian crude. This means that cash will flow to them, rather than to Iran. Israel is doing their dirty work, so to speak.
The only thing that would stop this is the Fifth Fleet. Interestingly, we've just removed some aircraft carriers from the Gulf. Hmmm.