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English definition of “crude oil”

crude oil

noun [U]     (also crude)
NATURAL RESOURCES oil in a natural state that has not yet been treated: The plant processes 405,000 barrels of crude oil each day. The government estimates that the oil field could hold 200 million barrels of crude. Global crude consumption is now growing at its fastest pace for 40 years.
(Definition of crude oil noun from the Cambridge Business English Dictionary © Cambridge University Press)
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