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Satellite imagery ©2010 MDA Information Systems, USGS, NASA (info)
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Nigeria base mapping 50, Harvard WorldMap (info)
Nigeria base mapping 100, Harvard WorldMap (info)
Nigerian states data from DIVA-GIS
Oil block data from NOSDRA
Pipeline, terminal and refinery location from map by National Geographic Magazine (2007-02), data source IHS Energy Group, US Central Intelligence Agency
Wetlands data from National Oil Spill Detection and Response Agency (NOSDRA) of Nigeria (info)
Waterbodies data from National Oil Spill Detection and Response Agency (NOSDRA) of Nigeria (info)
Population data from National Oil Spill Detection and Response Agency (NOSDRA) of Nigeria (info)
World Wildlife Fund terrestrial ecoregion layer, 2011, Harvard AfricaMap (info)
Digital Soil Map of the World, FAO, Harvard AfricaMap (info)
Update for New report
Spill ID:

The incident details will appear here once you select a spill in the map or in the table view.

Map and data layers in the map can be switched on and off using the overlay control at the right side.

The spill causes are either Oil company (in black) if they were considered responsible, Third party (in red) otherwise.

Pending visit spills (purple) are those for which a Joint Inspection Visit (JIV) is yet to be carried out, except cases where it is not possible to reach the spill site.

Each circle's area corresponds to the quantity spilled, one pixel per barrel except small ones which are drawn with a minimum radius of 4 pixels.

Unquantified spills have a dashed border, and are those for which the report does not include an estimated quantity of barrels spilled.

Reports without geographical coordinates are not shown in the map, but are available at the table view. This is indicated with the map legend "Located x of y spills".

Spills that were at least partially cleaned are shown as Cleaned up, in grey.

New spills (orange speech bubble) are new reports that are being clarified