By Chris Casteel Washington Bureau ccasteel@oklahoman.comWASHINGTON — The Obama administration has dropped its effort to list the lesser prairie chicken as a threatened species, handing a victory to oil companies, farmers and landowners in Oklahoma and four other states who fought the federal habitat protection for years. The U.S. Fish and Wildlife Service this week decided not to appeal the decision of a federal judge in Texas, who overturned the administration's 2014 listing of the lesser prairie chicken as a threatened species. An agency spokesperson said Wednesday, "The U.S.