Company started into marine business in 1984 with its first bunker barge 100 dwt FIRTINA-5 together with attendance of Niyazi ŞENER’s sons Ertan ŞENER and Ercan ŞENER.
Company expanded its share in bunker market by purchasing 4 bunker barges (between 50 and 400 dwt) between 1984 and 1987. Company started its petroleum shipments in spot market by changing name of 1650 dwt LPG tanker named AYGAZ 2 to SELAY-5 in 1991. Şener Petrol Denizcilik ve Ticaret A.Ş. ordered its first new building vessel 2850 dwt M/T ERMAN S to Çiçek Shipyard located at Tuzla, İstanbul in 1997 and delivered on October 1999. The group expanded and obtained a modern structure by gathering of subsidiary companies within SNR HOLDING in 2005.