Sean Fanning

Tarn Drilling Co. operates as a holding company with interest in providing drilling services. It owns two drilling contractors Connors drilling and Sanderson drilling. The firm’s underground drilling includes exploration diamond drilling. The company is headquartered in Montrose, CO.

Boart Longyear Ltd. engages in the provision of drilling services, drilling equipment, and performance tooling. It operates through the Global Drilling Services and Global Products segments. The Global Drilling Services segment provides services to companies in mining, energy, and other industries. The Global Products segment manufactures and sells drilling equipment and performance tooling to customers in the drilling services and mining industries. The company was founded by Edmund J. Longyear in 1890 and is headquartered in West Valley City, UT.

Major Drilling America, Inc. provides drilling services for mining and mineral exploration. Its drilling services include surface and underground coring, directional, reverse circulation, RAB, geotechnical and environmental drilling. The company is headquartered in Salt Lake City, UT.