A circumferential sealing assembly for use between a lower-pressure oil side and a higher-pressure gas side is presented. The assembly includes a sealing ring interposed between either a rotatable runner or a sleeve and a housing within a turbine engine. Ducts communicate the hot gas into grooves to form a thin film between the ring and the runner or the sleeve. Embodiments include grooves on the runner and ducts through the runner; grooves on the ring and ducts through the runner; grooves on the ring and ducts through the ring; grooves on the runner and ducts through the ring; grooves on the sleeve and ducts through the sleeve; grooves on the ring and ducts through the sleeve; grooves on the ring and ducts through the ring adjacent to the sleeve; and grooves on the sleeve and ducts through the ring. Grooves and/or ducts may rotate with the component(s) thereon.