The secondary and tertiary effects of a closed Persion Gulf...

The secondary and tertiary effects of a closed Persion Gulf would need to be looked at however. After an initial spike and panic buying/stockpiling, global growth would fall rapidly from already low levels. You would see a futher push to alternative fuels, and stepped up efforts to economise energy usage ala the OPEC embargoes.

As enticing as an oil supply line snap is (and I sometimes have fantasies about that very thing), a longer term reduction of oil supply coupled with recovering global growth would be better for share price appreciation.

But tension building up in the region plus a cold northern winter would be helpful to our cause. That, and some rigs dropping wells.