Brazil was considerate self-sufficient in petroleum in 2006 and, in a close future, may become one of the world's biggest arms producers and exporters of oil and its derivatives, mainly due to its deep water drilling technology and the recent petroleum discoveries along the Brazilian coast of pre salt. There are quite relevant accidents to the environment, in approximately 63 notified main occurrences, between 1975 and 2012. From 1998, PETROBRAS (Brazilian Oil&Gas Co) and Ministry of the Environment (MMA), has been developing actions for a unified mapping of the problem, through environmental sensitivity oil spill maps, adjusted to Brazilian terresfrial and coastal environment. In 2002 was defined as planning unit the sedimentary coastal basins, mapping each one in three different scales: strategic, tactical and operational. The cartography developed for these maps requests specific cartographic design, seeking the development of a database for each one, pointing to the objectives of the three map types. In that way, the whole cartographic work is supported on the characterization of terresfrial, coastal and sea areas under potentials oil spill, through cartographic documents and GIS environment. The sensitivity maps serve as a critical tool to planning and answering to oil spilling incidents, as well as to make available the environmental and socioeconomic information on the reached area. Another type of support map is presented, called Accessibility Map. This paper aims to present the employed methodologies for the developing the environmental sensitivity oil spill maps of PETROBRAS, in the Campos Basin, along the coast of Rio de Janeiro and Espirito Santo States, as well as the associated database and metadata. All maps and database were worked from existent reference maps according to the project needs, by the Laboratory of Cartography of Geography Department, Federal University of Rio de Janeiro.