Hajrudin Bilalic extracts oil from a hole in his yard in Dubrave near Tuzla

Bilalic found three sources of oil in his yard ten years ago. Bosnia's Muslim-Croat federation will seal a preliminary deal next month with Shell Exploration Company, part of Royal Dutch Shell, to start exploring potential natural gas and oil fields in the region, the government said on October 13, 2011. REUTERS/Dado Ruvic