It is used primarily in the construction of Slime Lamps and Fashion Pods, but is also required in the construction of Refinery Links.
Primordy oil is a common resource obtained with a pump.
Recipes that use Primordy Oil
The name "Primordy Oil" derives from the words "Primordial" and "Oil". This, and its Slimepedia tagline - "This stuff is pre-pre-prehistoric." - indicates that the oil is ancient, which is true to the length of time it takes for oil to form. Physically, Primordy Oil resembles real-world oil, and has a similar texture to The Tarr which also draws some inspiration from oil.