An assembly for use with an oil-filled cable termination includes a cable gland, a cable received in the cable gland, and a stress cone received around the cable and spaced apart from the cable gland. The cable includes a central conductor and a polymeric insulation layer surrounding the central conductor. A lug is spaced apart from the stress cone and includes a barrel portion with the central conductor of the cable received in the barrel portion. An oil barrier system including an oil barrier layer surrounds the polymeric insulation layer of the cable between the stress cone and the lug.