The Geneva-based trader bought a 10% stake in Vostok Oil through a unit last week.

According to the Bloomberg report https://www.bloomberg.com/news/articles/2021-01-05/trafigura-s-arctic-oil-bet-is-backed-by-7-billion-russian-loan?sref=WJKVI5nK, corporate filings in Singapore showed that the trading firm agreed to a 5.775 billion euro ($7 billion) loan facility with Credit Bank of Moscow PJSC on Dec. 23.

"The acquisition is majority financed by long-term debt financing provided to the entity," Trafigura said in a statement last week without disclosing the value.

(Reporting by Rithika Krishna; Editing by Devika Syamnath)