Heavy Drills 1994 4,000 h United States, Birdsboro, Pennsylvania
Surface drill rigs 1990 United States, Lyman, South Carolina
Surface drill rigs 2004 United States, Louisville, Kentucky
Surface drill rigs United States, Mifflinburg, Pennsylvania
Surface drill rigs 1980 United States, Mifflinburg, Pennsylvania
Drilling equipment accessories and parts 1996 United States, Mifflinburg, Pennsylvania
Drilling equipment accessories and parts United States, Mifflinburg, Pennsylvania
Surface drill rigs 2003 United States, Mifflinburg, Pennsylvania
Surface drill rigs 2000 United States, Louisville, Kentucky