It could also be a play to squeeze China or similar nation dependent on middle east oil. USA semicon production not ready, if there were signals that China was ready for a play on Taiwan maybe this is a gambit to buy some time.
That would be a double whammy for America then: a devalued dollar and higher oil prices. Both cause inflation.
China doesn’t seem to be squeezed when they seem to have a deal with Iran to buy in yuan.
Is China really dependent on middle-east oil? I read that they had been diversifying in preparation for an energy resource fight for some time now. For example, they've massively invested in Solar power generation, are building a 300-400 billion dollar gas pipeline from Russia, already buy a lot of oil to from Russia, and also purchased from Venezuela (though how that's going now is anybody's guess). They also have a good relationship with most of the players in the middle-east and helped repair ties between the Saudis and the Iranians.