Gazprom Neft attempted a merger with Yukos that would have created Russia's largest oil company, YukosSibneft. The first attempt in 1998 failed over a management dispute, while second time round Sibneft's shareholders called off the deal in November 2003 after the federal government cracked down on Yukos despite the process already being well under way. In September 2005, Gazprom bought 75.7% of Sibneft's shares from Millhouse Capital (Roman Abramovich’s investment vehicle) for US$13.1 billion in Russia's largest corporate takeover. In May 2006, Sibneft was renamed Gazprom Neft. In 2006 Alexander Dyukov was elected as CEO of the company and in 2008 he
Sibir Energy Sibir Energy. On 15 February 2011, it announced becoming the only shareholder in Sibir Energy after the withdrawal of the Moscow government-controlled Central Fuel Company. The company's primary assets are Salym oil fields in Nefteyugansk area operated by Salym Petroleum Development, a 51% voting share in Moscow Oil Refinery, operated in partnership with Gazprom Neft, and a substantial interest in Moscow-based gasoline retail networks. Through its subsidiary, Magma, Sibir Energy has interests in the Yuzhnoye and Orekhovskoye fields in West Siberia. It owns the Moscow Oil and Gas Company (formerly: The Moscow Oil Company). Before takeover by Gazprom Neft, Sibir