I don't think I've seen it raised yet, but wouldn't oil sanctions against the US and EU be a logical step for the OPEC powers to take, especially as more details of the Final Solution in Gaza come out and their populations get more insistent?
This time it feels like it could actually end the empire, since apparently it's too hollowed out to fund the genocide and a proxy war at the same time. 
I want it to happen kinda but at the same time I know it'll be devastating for the global south countries to a much greater extent.
So far, Saudi response has been very both sidesy