Profiles: Russia's rich list
(CNN) -- The following are profiles of Russia's so-called oligarchs, a group of businessmen who made their fortune following the fall of the Soviet Union.
Mikhail Khodorkovsky
• Age: 41
• A former Communist Youth League leader, now Russia's richest businessman with an estimated net worth of $8 billion
• Head of Yukos Oil, which became the world's fourth-largest oil company following a merger with rival Russian firm Sibneft
• Founded Menatep bank in 1987
• Bought Yukos at a state auction in 1995 for the bargain price of $350 million
• Made his first millions in the early 1990s, when Menatep acquired shares in companies that were privatized at knock-down prices
• Took 26th place in Forbes magazine's billionaires list in 2003
Now faces fraud and tax evasion charges that could result in a 10-year prison sentence
Roman Abramovich
• Age: 37
• Businessman and Governor of the Russian province of Chukotka, accused by audit office of serious financial abuse
• Made his fortune initially through oil deals in the early 1990s
• Estimated net worth of $5.7 billion
• One of the major shareholders in the Russian oil firm Sibneft, which merged with Yukos Oil
• Owner of the Chelsea football club, bought in July 2003
Boris Berezovsky
• Age: 58
• Former media baron and car salesman, rose to become a Kremlin power-broker under Boris Yeltsin in the 1990s after the collapse of the Soviet Union
• Sought in Russia on fraud charges, but granted political asylum in Britain last September
• Main business interests remain in the car industry, media, banks, energy and a stake in national airline Aeroflot
Vladimir Gusinsky
• Age: 52
• Multimillionaire, media tycoon and former theater director
• Once controlled Russia's biggest independent media empire including radio stations, a newspaper, magazines and the influential NTV television network
• Arrested in Greece last August on fraud charges, but charges were subsequently dropped
