Leonid Mikhelson

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Leonid Viktorovich Mikhelson (Russian: Леони́д Ви́кторович Михельсо́н; born 11 August 1955) is a Russian-Israeli billionaire oligarch, businessman, CEO, chairman and major shareholder of the Russian gas company Novatek. After the collapse of the Soviet Union, Mikhelson obtained a stake in a privatized pipeline construction company out of which he formed Novatek. He is a business partner of Russian billionaire Gennady Timchenko, a close confidante of Russian leader Vladimir Putin. According to the Bloomberg Billionaires Index, Mikhelson had a net worth of US$24.8 billion as of 24 August 2026, making him the 103rd richest person in the world and the second richest in Russia. In the 2026 Forbes annual billionaires ranking, he was ranked 88th in the world and fourth in Russia, with an estimated net worth of US$28.3 billion.

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