Gazprom plus one share of Sakhalin Energy. In June 2007, TNK-BP, a subsidiary of BP plc, agreed to sell its stake in Kovykta field in Siberia to Gazprom after the Government of Russia questioned BP's right to export gas from Russia. On 23 June 2007, the governments of Russia and Italy signed a memorandum of understanding towards a joint venture between Gazprom and Eni SpA to construct a 558-mile (900 km) gas pipeline to carry gas per year from Russia to Europe. This "South Stream" pipeline would extend under the Black Sea to Bulgaria with a south fork to Italy and
Gazprom of the Gazprom Neft shares for $13.1 billion. Gazprom's ability to supply natural gas to domestic market and for reexport has relied to a large extent on imports from Central Asia. In 2007, Gazprom imported a total of from Central Asia: from Turkmenistan, from Kazakhstan, and from Uzbekistan. In particular, Gazprom purchased seventy-five percent of Turkmenistan gas exports in order to supply gas to Ukraine. In 2008, Gazprom paid $130/mcm to $180/mcm for gas from Central Asia. In 2015, Gazprom's proved and probable reserves of natural gas were , a 3.8% increase from the 2011 figure which represented 18.4% of