Surface drill rigs 7,142 h United States, Lancaster, Massachusetts
Surface drill rigs 2017 6,976 h United States, Helenwood, Tennessee
Surface drill rigs 2021 1,543 h United States, Lancaster, Massachusetts
Surface drill rigs 2000 United States, Brighton, Colorado
Surface drill rigs 2010 United States, Louisville, Kentucky
Surface drill rigs 2019 United States, Louisville, Kentucky
Surface drill rigs 1995 2,718 h United States, Pittston, Pennsylvania
Surface drill rigs 2015 8,754 h United States, Helenwood, Tennessee
Surface drill rigs 2016 2,509 h United States, Lancaster, Massachusetts