There has been substantial recent interest in shale gas potential in Eastern Europe. ExxonMobil has been working to identify shale gas resources in Germany and other large end-user markets. E&P companies have selected about a dozen basins in Europe for initial exploration, including the Cambrian Alum in southern Sweden, the Vienna Basin in Austria, multiple locations in Poland (especially the promising Gdansk Basin), the Weald Basin in England, the East Paris Basin in France (as well as two other locations in France), the Lower Saxony Basin in Germany and the very large Mako Trough in Hungary. China is another important area for shale gas, as is India. Chinese and American geologists have said that China’s shale gas potential is massive and could easily rival the largest basins in the US.