South Stream
South Stream is a canceled pipeline project to transport natural gas of the Russian Federation through the Black Sea to Bulgaria and through Serbia, Hungary and Slovenia further to Austria. It was never finished. Wikipedia
Operator: South Stream Transport AG; National project companies
General direction: east–west
Passes through: Black Sea; Varna; Pleven; Zaječar; Paraćin; Gospođinci; Bački Breg; Hercegszántó; Tornyiszentmiklós