Crude Oil

Crude Oil is an item in Survival 303.

Overview
It can be foraged as many times as you want from the crude oil spills. Crude oil has the same properties and colour of oil. However it is unpurified, unlike oil, which is, so you need to filter crude oil to get oil using a crude oil filter or an oil filter. It can be found in the ocean. Find the black oil spills. Like sand, crude oil is available in infinite quantities. You can also craft it into black ink for a tier 2 workbench.