Heavy Drills 2018 2,224 h United States, Ludlow, Massachusetts
Heavy Drills 2017 2,484 h United States, Dunnigan, California
Heavy Drills 2006 United States, Seaford, New York
Heavy Drills United States, SLC, Utah
Heavy Drills 2005 4,150 h United States, Charleston, West Virginia
Heavy Drills 2021 United States, Ludlow, Massachusetts
Heavy Drills 1994 4,000 h United States, Birdsboro, Pennsylvania
Heavy Drills 2020 558 h United States, Laurel, Delaware
Heavy Drills 2008 1,148 h United States, Tomball
Heavy Drills 2021 100 h United States, Houston, Texas
Heavy Drills 2022 United States, Houston, Texas
Heavy Drills 2022 56 h United States, Santa Barbara, California
Heavy Drills 2013 4,029 h United States, Cuddy, Pennsylvania
Heavy Drills 2015 1,219 h United States, Brainerd, Minnesota
Heavy Drills 8,703 h United States, Helenwood, Tennessee
Heavy Drills 2017 4,079 h United States, Compton, California
Heavy Drills 2015 1,213 h United States, Brainerd, Minnesota
Heavy Drills 2006 3,485 h United States, Charleston, West Virginia
Heavy Drills 2007 15,735 h United States, Lamar, Indiana