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
Gazprom the world's reserves. In 2015, the reserves of crude oil were 1.355 billion tons and the reserves of gas condensate were 933.3 billion tons. 59.8 percent of Gazprom's natural gas reserves (Categories A+B+C1) were located in the Urals Federal District (decreasing), 20.5 percent in the Arctic shelf (increasing), and 8.3 percent in the Southern Federal District and North Caucasus Federal District. Gazprom has invested about 480 billion rubles ($20 billion) in new major projects in order to maintain supply. Nearly 37 percent of Gazprom's reserves are located in the Yamal Peninsula and in the Barents Sea. One of Gazprom's major