Heavy Drills 2005 4,150 h United States, Charleston, West Virginia
Surface drill rigs 2021 8,943 h United States, Nashville, Tennessee
Drilling equipment accessories and parts 9,999 h United States, Rapid City, South Dakota
Drilling equipment accessories and parts United States, Mifflinburg, Pennsylvania
Surface drill rigs 2013 3,204 h United States, Sutherlin, Virginia
Heavy Drills 2006 5,452 h United States, Charleston, West Virginia
Surface drill rigs 2005 United States, Louisville, Kentucky
Surface drill rigs 2007 United States, Louisville, Kentucky