Allows the placement of lava and oil ocean just like landfill.
Includes mod options to enable one individually or both. Also lets you configure stack size, rocket capacity, tech tier, and if they should only be craftable on Vulcanus and Fulgora respectively.
Original mods made by Junsung Cho, factorio.com username rymuff. You can find their profile here. This is a fork of both of their Lavafill and Oilfill mods combined into one with added mod settings and updated for 2.1.