Heavy Drills 1994 4,000 h United States, Birdsboro, Pennsylvania
Drilling equipment accessories and parts United States, Mifflinburg, Pennsylvania
Surface drill rigs 1980 United States, Mifflinburg, Pennsylvania
Water Well Drilling Rigs 1979 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1993 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1997 United States, Mifflinburg, Pennsylvania
Surface drill rigs 1997 United States, Louisville, Kentucky
Surface drill rigs 2004 United States, Louisville, Kentucky
Water Well Drilling Rigs United States, Mifflinburg, Pennsylvania