Nikolai Buinov was born in Irkutsk, Russia, Russia. Nikolai Buinov is #1140 in List Billionaires People In The World. Nikolai Buinov is the main shareholder of Irkutsk oil company (IOC), the largest independent private oil company in Russia. Buinov started to create IOC in 1997, when he purchased the license for the oil field. In 1999 he acquired Ustkutneftegas, which had the licenses to extract oil on 2 fields. In 2000 he renamed it Irkutsk oil company. He sold a stake to the European Bank for Reconstruction and Development (EBRD) in 2008; EBRD in turn sold a portion of its stake to Goldman Sachs in 2013.