The HWO (hydraulic workover) jack is comprised of two or more hydraulic cylinders which provide the forces needed to deploy or retrieve the jointed tubing. The hydraulic jack is also equipped with at least one set of stationary tube slips (located near the base of the jack) and a set of traveling slips (located at the top of the jack). Piston rods exit the top of the hydraulic cylinders and manipulate the position of the traveling slip assembly.