I feel like OPEC scales up/down production on a whim more than Iran produces.
Unless you mean the potential for a boycott like what happened back in the day. However the geopolitical situation has changed enough that i think that is exceptionally unlikely.
I don't think Israel is capable of a ground invasion and i don't think USA has the stomach for it.
I suspect they will just continue to try and economically strangle iran and pick off their allies one by one in the hope of an internal revolution (or wait until there is so much economic damage they aren't relavent anymore)
Unless you mean the potential for a boycott like what happened back in the day. However the geopolitical situation has changed enough that i think that is exceptionally unlikely.