Reuters | BASF in talks to merge oil and gas unit with Fridman's DEA Financial Times German chemicals group BASF announced its oil and gas unit, Wintershall, is in talks to merge with DEA, the oil and gas business spun off by RWE in 2014. DEA was purchased by Russian billionaire Mikhail Fridman's Luxembourg-based investment fund ... BASF in Talks to Combine Oil-and-Gas Activities With LetterOne's DEA |