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 its sales to European customers. In 2008, the average gas price paid by Russian industrial customers was $71/mcm, while households paid $54/mcm. Since 2000, Natural gas prices have fluctuated. In late 2007, the price of natural gas at the New York NYMEX was 7,53 $ per MMBtu, at 26,4 m³ per MMBTU representing a price of $285 per 1000 Cubic metres. At the same time, based on their respective contracts with Gazprom, German customers paid (per cubic metre) $250, Polish customers $290, Ukraine customers $130 and Russian customers $49. Gazprom delivers gas to 25 European countries. Its main export arm