Tesco Corporation is engaged in designing, assembly and service delivery of technology-based solutions for the upstream energy industry. The Company's product and service offerings consist primarily of equipment sales and services to drilling contractors, and exploration and production companies around the world. The Company operates through four segments: Top Drives, Tubular Services, Research & Engineering, and Corporate and Other. The Company's Top Drive segment includes top drive sales, top drive rentals and after-market sales and services. Its Tubular Services segment includes automated and conventional tubular services. Its Research and Engineering segment includes internal research and development activities related to its automated tubular services and top drive model development, as well as the Casing Drilling technology prior to the sale.