Who are the richest oligarchs in Russia?

Vladimir Potanin - $25.2 billion

Vladimir Potanin has a net worth of $25.2 billion. Potanin, which owns one-third of MMC Norils Nickel PJSC, operating in the base metal industry, also holds a controlling interest in Petrovax Pharm.

Alexey Mordashov - $22 billion

Alexey Mordashov has a fortune of $22 billion. Being the major shareholder of Severstal PAO, which operates in the steel industry, Mordashov has investments in many fields, such as gold, telecommunications, and finance.

Leonid Mikhelson - $22 billion

Leonid Mikhelson, who owns a third of Russia's largest non-state natural gas company, Novatek, is also the CEO. He also owns 30.6 percent of Mikhelson Sibur, a petrochemical company.

Vladimir Lisin - $21.2 billion

Vladimir Lisin, the Chairman of the Board of Novolipetsk Steel, Russia's largest steel producer, has a net worth of $21.2 billion. Lisin also has investments in companies operating in the field of logistics, such as Freight One, UCL Port, and VBTH.

Andrey Melnichenko - $20 billion

Melnichenko, the largest shareholder of fertilizer and agricultural products producer Eurochem, has a fortune of $20 billion. The oligarch has a stake in the power generation company Rosseti Siberia and has investments in real estate.

Alisher Usmanov - $19.5 billion

Usmanov, whose yacht Dilbar was confiscated in Germany, owns 49 percent of the USM Holding company, which controls Russia's largest iron producer, Metalloinvest, and the telecommunications company MegaFon. Usmanov, who has a fortune of 19.5 billion dollars, also has investments in companies such as JD.Com, Uber Technologies, and Kommersant.

Viktor Vekselberg - $16.3 billion

Vekselberg, who is the chairman of the board of Renova company, which has shares in companies such as Russia's largest aluminum producer, Rusal, equipment manufacturer Sulzer and Oerlikon, has a fortune of $16.3 billion.

Mikhail Prokhorov - $13.6 billion

Prokhorov, who founded the Onexim Group company, which operates in the fields of banking, insurance, and real estate, has shares in Renaissance Capital and Renaissance Credit banks. The oligarch, with a net worth of $13.6 billion, was the previous owner of the Brooklyn Nets.

Roman Abramovich - $13.5 billion

Abramovich, the largest shareholder of Evraz, Russia's second-largest steel producer, also has a stake in Norilsk Nickel. The billionaire, famous for his yachts, is also the owner of Chelsea football club, which he recently announced for sale.

Suleiman Kerimov - $11.5 billion

The Kerimov family controls the majority of Russia's largest gold producer, Polyus. Kerimov, who also has investments in real estate in Moscow, has a fortune of 11.5 billion dollars.

Gennady Timchenko - $11.4 billion

A billionaire, Timchenko, who controls Volga Gorup, which operates in the energy, transportation, and construction sectors, has a fortune of 11.4 billion dollars. Among the oligarch's biggest assets are 23.5 percent of the natural gas giant Novatek and 14.5 percent of Sibur, which operates in the field of chemistry.

Dmitry Rybolovlev - $10.7 billion

Rybolovlev sold his two fertilizer production companies in 2010 and 2011 for over $7 billion. The billionaire, who also sold the 1 billion dollar shares of the Uralkali company, which went public in 2007, also owns the shares of the Bank of Cyprus and Monaco.

Victor Rashnikov - $10.3 billion

Rashnikov is chairman of the board of the steel and pipe manufacturer Magnitorsk. The billionaire, who collected the shares distributed to the workers by the Russian government during the collapse of the Soviet Union, has a fortune of $10.3 billion.

Mikhail Fridman - $10.2 billion

Fridman is the largest shareholder of Alfa Group, which has shares in Russia's fifth largest bank, Alfa Bank, and food retailer X5 companies, with a net worth of $10.2 billion. The billionaire owns stakes in German energy company Wintershall DEA and mobile service provider Veon through Luxembourg-based LetterOne.

Vyacheslav Kantor - $8 billion

Kantor, who owns the majority of the fertilizer producer Acron, has a net worth of $8 billion. The billionaire also has the world's largest collection of 20th-century art.