His Alfa Group, which he shares with fellow billionaires Mikhail Fridman and Alexei Kuzmichev, is the biggest financial and industrial group in Russia. Khan is executive director of TNK-BP, the group's oil business. In February Russian shareholders of TNK-BP won a London court injunction pending arbitration against the shares exchange deal between BP and state-owned Rosneft; TNK-BP management followed in March with an offer to buying a $7.6 billion stake in BP in a bid to join an offshore partnership with Rosneft. Kiev native came to Moscow to study. With college buddies Fridman and Kuzmichev, started commodities trading outfit, Alfa-Eco, in 1989; two years later they launched the Alfa-Bank, which is now the biggest private bank by capital in Russia. Bought Tyumen Oil from the state in the late 1990s and merged it with BP's Russian assets into TNK-BP. The group also has stakes in two Russian cellular companies and owns the biggest retailer, X5.