Wintershall Dea

Wintershall Dea GmbH is a German gas and oil producer. The joint venture was created in May 2019 by the merger between Wintershall Holding GmbH and DEA Deutsche Erdoel AG. BASF SE has a 67% stake in it, with the other 33% being held by LetterOne, whose main ultimate owner is the Russian business magnate Mikhail Fridman.

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