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 ma rine fuel oil. 250 m oil spill barrier are deployed around the vessel. Oiler Port Authority is also req uest clea ning 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 tra nsported by licensed trucks to the licensed incinerator factory.