Like the 70s Arab oil embargo; Europe, Asia and elsewhere are experiencing a de facto oil embargo as a consequence of Ukraine's decision not to allow Russian oil exports. That policy was supported by EU and American sanctions. France apparently used submarines to sink civilian ships loaded with Russian oil.
Iran has of course stopped vessels in the Persian Gulf and Indian ocean vessels carrying mid-east oil or seeking to load up mid-east crude from transiting the Strait of Hormuz.
The USA probably can produce oil sufficient for itself with vast reserves and increases in oil production while the global embargo persists- if the oil wasn't already sold to foreign countries seeking to buy prime crude and increase global warming gases simultaneously.
