On January 31 th, 2004, M/V ENDEAVOR discharge fuel oil on the sea during bunkering at Derince, Oiler Port. After the accident, Mavi Deniz mobilized the oil pollution response equipment; within 2 hours, the amount of spill was estimated as lO tons of marine fuel oil. 250 m oil spill barriers are deployed around the vessel. Oiler Port Authority is also requesting cleaning service for the land surface from Mavi Deniz. To clean the coast and rocks, mini boats, adsorbents pads, water-based chemicals, heating machines were used. The oil cleanup operation takes place one month. All oily waste was collected in drums and transported by licensed trucks to the licensed incinerator factory.