The DUmmies should actually study the situation sometimes.
Iran's oil is sour, not sweet. It costs more and requires specialized refineries to do more than make asphalt with it.
The Europeans know Iran wants Nukes, and they have negotiated with Iran for years to get them to stop. There are indications that the Europeans have told us that they are at the end of their rope and negotiation isn't providing anything useful.
The other Middle Eastern states are terrified of Iran and want somebody, anybody, to bomb the hell out of them. They don't care if it is us or Isreal. They may make some noise, but they wouldn't really care.
Russia still wants to be a player. So much so that they just ruined their economy again trying. Since they can't manage to be a player they are certainly player hating. That means they oppose us more out of spite than out of rational strategic interest. It actually favors us as long as they keep doing that.
China has other concerns right now, and they have access to other oil. They aren't going to come to Iran's aid.