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 to be , with potential to increase to . The Shtokman field is one of the world's largest natural gas fields. It is located in the central part of the Barents Sea, northeast of the city of Murmansk and west of the Yamal Peninsula. The field is estimated to contain up to of gas. Potential production is in the initial phases, with a potential increase to . Gazprom, Total (France) and Statoil (Norway) created a joint company Shtokman Development AG for development of the field. On 8 April 2013, in Amsterdam, Alexey Miller, Chairman of the Gazprom Management Committee and