The heaviest sentence was handed down to former Yukos acting property manager Aleksei Kurtsin, who was also fined 1 million rubles ($34,700).
The Lefortovo court ruled that Kurtsin would serve his sentence in a high-security prison camp.
Prosecutors accuse the group of using fraudulent charities to launder some $340 million of the oil giant's assets.
Former Yukos CEO Mikhail Khodorkovskii is currently serving an eight-year sentence in a penal colony near Russia's Mongolian border.
Khodorkovskii, who was convicted on charges of fraud and tax evasion, says the case brought against him was politically motivated.
(RIA-Novosti/ITAR-TASS)
The Lefortovo court ruled that Kurtsin would serve his sentence in a high-security prison camp.
Prosecutors accuse the group of using fraudulent charities to launder some $340 million of the oil giant's assets.
Former Yukos CEO Mikhail Khodorkovskii is currently serving an eight-year sentence in a penal colony near Russia's Mongolian border.
Khodorkovskii, who was convicted on charges of fraud and tax evasion, says the case brought against him was politically motivated.
(RIA-Novosti/ITAR-TASS)