China is desperate, and also the enemy of essentially every source of oil ... "except" Venezuela (disregarding the fact that of course Maduro can't be trusted, and thus isn't really an ally of China. More accurately they're both desperate and might be able to help one another).
Russia is also desperate. And is extracting oil in Venezuela easier than doing it while under Ukrainian bombardment? Good question but we can summarize: extracting oil inside Russia is failing, thanks to Putin's 3-day special military operation ... and they've already had to import fuel twice in the past 6 months, despite how utterly ridiculous that is: the country that out-produced Saudia Arabia when it comes to oil needed to import fuel.