petroleum
crude oil / mineral oil / liquid fuel
Noun
This term refers specifically to the raw, mineral oil extracted from the earth, though it is frequently used to encompass the entire family of refined products derived from it. It carries a technical and industrial connotation, often appearing in geopolitical or economic discussions regarding energy security and resource extraction. As a mass noun, it is treated as uncountable. It does not have a plural form in standard usage; instead, quantities are specified using partitive phrases such as "barrels of petroleum" or "deposits of petroleum."