Factorio Forums

I believe this is a bug: Advanced oil processing produces h: 3.5 l: 2 p: 5.5 vs Basic oil processing produces h: 30 l: 30 p: 40.

What version are you using? In 0.15.5 I get 10 heavy, 45 light and 55 petroleum from 50 water and 100 oil.

Do you perhaps have some mod altering the recipe?

Sorry, forgot to put in the version.

I totally forgot about checking mods! Found the mod and fixed it.