Meaning of the word "crude oil" in English

What does "crude oil" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

crude oil

US /ˈkruːd ɔɪl/
UK /ˈkruːd ɔɪl/
"crude oil" picture

Noun

petroleum that has not been processed or refined

Example:
The price of crude oil has been fluctuating recently.
Large tankers transport crude oil across oceans.