If the gas price skyrockets
We're a net oil exporter these days, thanks to hydrofracking.
https://www.eia.gov/energyexplained/oil-and-petroleum-products/imports-and-exports.php
In 2020, the United States became a net exporter of petroleum for the first time since at least 1949.
If the gas price skyrockets, (a) if it becomes really serious, it's possible for the US to not export oil and (b) more US oil production will come online.
Loss of oil access was a potent lever against the US in the 1970s, but it isn't in 2025.
They already have been the target of missiles launched by the Houthis provided by Iran. Thus far, missile defenses have stopped them.
I suppose that Iran probably has some ability to ramp up how many anti-ship missiles they're throwing, but the US also has the ability to drastically ramp up the number of bombs being dropped on Iran; I doubt that climbing the escalation ladder is going to be advantageous to Iran.