Canrig Drilling Technology Limited is one of the world's leading suppliers of top drive drilling systems for oil and gas exploration. The company manufactures, markets and services a full range of portable and fixed top drive systems for installation in most land and offshore rigs. The company has been an innovator since the its inception. This was first evident in the development of its unique folding torque guide system, which greatly reduces the time required to rig up or down. Subsequent development of AC technology enabled Canrig to become the preeminent supplier of AC top drives for deep water drilling applications. Canrig equipment operates in all the major oil and gas producing areas of the world. Canrig Drilling Technology Limited is located in Magnolia, Texas.