oil tycoon

Translations
нефтяной магнат
He is an oil tycoon with vast holdings in the Middle East.
Он нефтяной магнат с огромными владениями на Ближнем Востоке.
Definitions
An oil tycoon is a wealthy and influential individual who has made a significant fortune in the oil industry, often through the ownership of oil companies, investments in oil exploration and production, or control over oil resources.
Words
oil

noun
нефтяной
tycoon

noun
магнат