Its crude form is rich in hydrocarbons (3)
I believe the answer is:
oil
(Other definitions for oil that I've seen before include "Black gold" , "Valuable viscous liquid" , "What can be extracted" , "Liquid fuel" , "valuable commodity" .)
I believe the answer is:
oil
(Other definitions for oil that I've seen before include "Black gold" , "Valuable viscous liquid" , "What can be extracted" , "Liquid fuel" , "valuable commodity" .)