If you have Lazing Around (https://mods.factorio.com/mod/LasingAround-Updated) installed, it adds "Crude Oil," "Oil Filtration," and "Filtered Oil" to the game, but your mod, which is awesome btw, bypasses the filtration and allows the use of "Crude Oil" directly.
You obviously don't have to do anything with this information, but I would love it if you added compatibility such that your mod would use the filtered "Crude Oil" called "Filtered Oil" instead.
