Financial Times | BASF and DEA agree multibillion oil and gas merger Financial Times BASF, the German chemicals group, has agreed to merge its Wintershall energy unit with rival DEA in a multibillion-euro deal to create one of Europe's largest independent oil and gas producers. DEA, also based in Germany, is owned by LetterOne, the ... BASF agrees oil unit merger with Fridman's DEA to spur expansion |