Leonard Blavatnik's Access Industries acquired it from the venturers for $5.7 billion in August 2005.
He and a friend from university, Viktor Vekselberg, formed the Renova investment vehicle, and then the two joined with Mikhail Fridman's Alfa Group to form the AAR venture.
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Since 2007, the Blavatnik Family Foundation has supported the Blavatnik Awards for Young Scientists together with the New York Academy of Sciences.
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He has made his fortune through diversified investments, through Access Industries, in Russia, Europe, North and South America.
There were two new entries in the top 20: Joseph Lau (Chinese property tycoon) and Leonard Blavatnik (Russian oligarch, returning after removal from the previous year's list).
Leonard Bernstein | Leonard Compagno | Leonard Cohen | Leonard Nimoy | Sugar Ray Leonard | Elmore Leonard | Leonard Wood | Leonard Slatkin | Leonard Rose | Leonard Woolf | Leonard French | Leonard Feather | Fort Leonard Wood | Leonard | Nicolas Léonard Sadi Carnot | Leonard of Noblac | Leonard Adleman | Leonard Woolley | Leonard P. Guarente | Leonard Cheshire | Fort Leonard Wood, Missouri | St Leonard | Sheldon Leonard | Leonard Rossiter | Leonard M. Miller School of Medicine | Jacques Léonard | Fort Leonard Wood (military base) | Steve Leonard | Leonard Trelawny Hobhouse | Leonard Lewisohn |
In 2003, the Renova Group, along with Access Industries (owned by Leonard Blavatnik) and the Alfa Group (owned by Mikhail Fridman, German Khan, and Alexei Kuzmichov) announced the creation of a strategic partnership to jointly hold their oil assets in Russia and Ukraine, forming the AAR consortium.