Rahrovan Komesh Oil Company, established in 2013, is an oil production & refining privately-held company. Our refining facilities located in Semnan. The name of the company “Komesh Oil” was borrowed from the ancient name of Semnan. We produce engine oils, industrial lubricants, base oil [SN 600, SN500, SN350, SN150] with the best and environmentally-friendly methods.