TO GO WITH AFP STORY by BERNARD OSSER: Gaz de schiste: la Pologne rêve de devenir un eldorado énergétique
View of a drilling rig exploring for shale gas in the eastern Polish village of Grzebowilk on April 27, 2011. Initial estimates suggest Poland has huge reserves of shale gas and authorities in Warsaw hope development of the sector could boost national energy security. AFP PHOTO / JANEK SKARZYNSKI
