Description
Workers pull a night shift on a well lit oil drill rig / workover rig as they work past 4 a.m. drilling a few miles from the Pawnee Buttes. The area in northern Colorado in Weld County has been greatly developed by the oil, gas and wind farm industries. Oil companies from around the nation frack the Niobrara oil shale on lands nearby and drill horizontally under the Pawnee National Grasslands.


