The $50-billion award was originally made in 2014 by The Hague Permanent Court of Arbitration after a claim was brought by three former shareholders in Yukos – Veteran Petroleum, Yukos Universal Ltd, and Hulley Enterprises Ltd.

Russia’s top investigative body, the federal Investigative Committee, said on its website Tuesday that it wants to question Mr. Khodorkovsky about the murder of Vladimir Petukhov, the mayor of the Siberian city of Nefteyugansk, where Yukos had its biggest oil-production unit.

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