I was wondering why Iran would need natural gas, given how big their gas reserves are. It turns out, due to western sanctions, Iran can't get the equipment to extract the gas they have, so they need to import it.
It is funny, that after Putin threatened to freeze western europe by withholding gas, western europe immediately moved to other sources for gas. That left Putin starving for cash, and lacking any fossil-fuel leverage against the west. The best threat is one you don't try to carry out, because if you try and fail, it's no longer a threat.