Major Drilling Group International Inc is engaged in the business of contract drilling, and it provides services to companies that are involved in mining and mineral exploration. It offers surface and underground coring, directional, reverse circulation, sonic, geotechnical, environmental, water-well, coal-bed methane, shallow gas, and underground percussive/long-hole drilling services, as well as various drilling-related mine services. Its geographical segments are Canada - the United States; South and Central America; and Australasia and Africa, of which majority of its revenue comes from Canada - the United States.