So Iran has agreed to cushion the pressure on oil surge and it's global impact especially on countries they consider ally. But it comes with a twist, they'll pay with Chinese yuan instead of this US dollars everyone has been depending on and they want to do this to limit the over reliance on the US dollar. If this goes through expect a massive surge in Chinese yuan against the US$ and other currency pairs and expect a further decline on the dollar pairs against other currency especially those that has maintained their alliance with China and neutrality amidst this ongoing conflict. Spain is neutral same with some other European countries so the Euro will maintain is ground and the pounds will feel a slight touch for aiding indirectly and also bowing to pressure. I haven't traded a pair that has the Russian ruble before but it there is then expect the ruble too to make a significant move. Finally expect a sharp drop on oil price if this goes through. The pressure is real let's hope it doesn't gets to a breaking point cause it'll be outrageous.
Not a financial advice. Do your own research. Trade carefully.