Poland’s ambition to achieve energy independence from Russia is being undermined by drillers giving up on the nation’s shale wells after disappointing results. The highest test flows during the country’s five-year search for unconventional gas were just 30 percent of what’s needed for commercial production, said Pawel Poprawa, a geologist at the AGH University of Science and Technology in Krakow. The number of active shale permits has fallen 43 percent from a high in January 2013 and explorers probably won’t extend all those expiring this year, according to Slawomir Brodzinski , the nation’s deputy environment minister. 3Legs Resources Plc, the Isle of Man-based company that was the first foreign explorer to buy a license in the East European nation, said last month it’s leaving after poor results at Poland’s biggest fracking operation in the northeastern Baltic Basin. The “poorly understood” formation may hold more gas than Texas’s Barnett Shale, […]