Surface drill rigs 2000 United States, Brighton, Colorado
Surface drill rigs 2010 United States, Louisville, Kentucky
Surface drill rigs 7,142 h United States, Lancaster, Massachusetts
Surface drill rigs 2019 United States, Louisville, Kentucky
Surface drill rigs 1995 2,718 h United States, Pittston, Pennsylvania
Surface drill rigs 2021 1,543 h United States, Lancaster, Massachusetts
Surface drill rigs 2016 2,509 h United States, Lancaster, Massachusetts