Yukos' former key oil unit Yuganskneftegaz had lodged a 62.4 bln rouble ($2.2bln) suit against Yukos over an alleged claim for unpaid oil, Inferfax reported.
Yugansk?s new owner state oil company Rosneft is already suing Yukos for $11 bln in alleged unpaid taxes.
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Yukos Is To Pay Over $2 bln To Rosneft
Yukos' former key oil unit Yuganskneftegaz had lodged a 62.4 bln rouble