Hydra Rig NOV was established in early 1973 and is based in Fort Worth, Texas. The company was established as a manufacturer of oilfield equipment. Hydra Rig's first product line and namesake is the Hydraulic Workover System, known in the industry as a snubbing unit. This unique unit allows the workover of an oil or gas well to be performed under pressure without the use of kill fluids in the...