I did a little internet reading yesterday when I saw this post. South Africa is currently the largest producer of coal oil. It seems it takes a huge investment in equipment to go from a solid fuel to liquid fuel. From what little I read they are injecting steam into the solid fuel to convert some of it into a liquid. Nazi Germany was making oil out of coal during WW2. I don't think it's very economical or doable at an individual level. To bad, there are a lot of tinkerers here that would be building miniature plants and running their vehicles.