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. 
it could be a posibility if most of the OPEC members agree, Iran and Venezuela would agree to it, maybe Qatar too since it has been independent for a while from the other gulf states, the main problem is the Saudis, while they have denounced israel's bombing of Gaza they havent really done much maybe they could change if the call between Iran´s president and the saudi crown prince made them agree to take a join decision, but its hard to say. the other gulf states normally follow what the saudi's do and Iraq is probably waiting to see whats everyone else opinion to choose what to do
If all of those member choose to do an embargo i think the rest of OPEC+ will follow, mostly because it would rise the global price of Oil