Close down the gulf oil traffic through the strait and watch how fast things get very bad for you...
Summer is half over...in Florida the kids next to me go back August 15
If you want high gas prices go to California...
If you think closing down the straight would be bad for the US it would be catastrophic for Europe, China and the Asian tigers. China would beg the US to obliterate the mad dog mullahs and, if we refused, would likely try to take down Iran by itself. Germany would feel 'déjà vu all over again' as if it was having its oil supplies chocked off by allied bombing.
The US and Russia, like it or not, are the only energy independent superpowers and therefor would actually benefit in the long run if oil has a sustained spike. American manufacturing would benefit because of its far lower energy costs due to much cheaper electricity generated by natural gas, coal, and nuclear power. The chemical industry in America would boom even faster due to access to cheap natural gas as feedstock.
Would $200 oil cause pain, yes it would, but in the long run America would surge ahead of the pack even faster than it is doing now.