Invest News DetailReuters - The European Union has to apply more political pressure to develop the Nabucco gas pipeline if it wants to reduce its dependence on Russian supplies, the bloc's energy chief stated. "We need more political engagement to remove all the obstacles to Nabucco. There are some obstacles that we should overcome," EU Energy Commissioner Andris Piebalgs told reporters. Disputes between Moscow and Ukraine, through which 80 percent of Europe's gas imports from Russia flow, have prompted the 27-member bloc to seek new sources of energy or supply routes, including the $12 billion Nabucco project. The Nabucco pipeline is due to bring Azerbaijani gas to Europe via Georgia and Turkey, bypassing Russia.