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 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