It didn’t exist yet. I don’t believe that petroleum fuel existed at the same time as any independent communist society, which contradicts your claims. If you would like to support your claim that some communist civilisation used petroleum, it seems to me you should name a communist society which maintained independence after the industrial revolution.
So, you might want to look into oil seeps as well.
You went and found the one indigenous group that actually did have access to petroleum. https://stacker.com/business-economy/history-oil-america
Not an exhaustive argument, but really points out a flaw in yours
That article lists it as a mosquito repellant and a salve, not as a fuel. I was careful to use the phrase “petroleum fuel”. Oil as a mosquito repellant doesn’t contribute to global warming.
