This picture taken April 5, 2012 shows a rig of the Canadian-based Talisman Energy Inc. exploring for shale gas in the middle of muddy fields in the village of Szymkowo, in central Poland. Talisman is... more 
This picture taken April 5, 2012 shows a rig of the Canadian-based Talisman Energy Inc. exploring for shale gas in the middle of muddy fields in the village of Szymkowo, in central Poland. Talisman is one among some two dozen international firms exploring shale gas deposits in Poland, which is hoping the fossil fuel will help cut 70-percent dependence on expensive Russian imports. (AP Photo/Czarek Sokolowski) less 
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Associated Press | Photo By Czarek Sokolowski
Mon, Apr 9, 2012 4:47 AM EDT