Gazprom acquired NTV, Russia's only nationwide state-independent television station from Vladimir Gusinsky's company, Media-Most holdings. In 2002, the Gazprom subsidiary Gazprom Media acquired all of Gusinsky's shares in companies held by Media-Most. In September 2005, Gazprom bought 72.633 percent of the oil company Sibneft for $13.01 billion. Sibneft was renamed Gazprom Neft. The purchase was aided by a $12 billion loan. Gazprom became Russia's largest company. On the day of the deal the company worth was valued at £69.7 billion (US$123.2 billion.) In December 2006, Gazprom signed an agreement with Royal Dutch Shell, Mitsui and Mitsubishi, to take over fifty percent
Kovykta field the field to state-owned Rosneftegaz, but failed. On 1 March 2011, Gazprom bought Rusia Petroleum's assets, including rights for the Kovykta field, for $711 million. The reserves of Kovykta amount to 2 trillion cubic meters of natural gas and more than 83 million tons of gas condensate. The period of active gas production in the Kovykta field is expected to be 30 years, and the period of field development about 50 years. The field was developed by Rusia Petroleum, 62.9% of which is owned by TNK-BP. 24.99% is owned by the power generating company OGK-3. The Kovykta field is considered