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 Neft limestone, which makes drilling difficult. Therefore, specialists are facing a more labor-intensive task. At the moment all these difficulties have been successfully overcome. Three development wells have now been constructed, successfully tested and their outputs have exceeded planned expectations. New innovative technologies are applied at Badra. Among them are: Solar panels can be another example of the usage of modern technologies. They allow the block valve station to work independently from electricity. The Badra oil field development consortium annually invests in education, medicine and other social projects in Iraq. In 2013 Gazprom Neft donated some buses to the University in