Harbison-Fischer Inc, 102 Knowles St, Kilgore, TX 75662, US

TESCO TUBULAR SERVICES is a part of Tesco Corporation, which specializes in the design, manufacture and service delivery of technology-based solutions for the energy industry. The parent company s Top Drive segment sells equipment and provides services to drilling contractors and oil and gas operating companies throughout the world. It manufactures top drives that are used in drilling operations to rotate the drill string while suspended from the derrick above the rig floor. Tesco Corporation s rental fleet comprises hydraulically powered top drive systems with power ratings of up to 1,200 horsepower. The parent company serves the United States, Mexico, Canada and Russia, as well as Asia and the Middle East.