sentences:  Rurtalbahn GmbH is owned by R.A.T.H GmbH (74.9%) and Dürener Kreisbahn (25.1%).It was outsourced from Dürener Kreisbahn in 2003, who had formerly promoted their railway network as Rurtalbahn.Dürener Kreisbahn had operated the two train lines since 1993 (however with the line to Linnich being shorter - trains only went to Jülich).