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United States Geologocal Survey (USGS); AMAP 1997, 1998 and 2002; CAFF, 2001; UNEP/World Conservation Monitoring Centre (WCMC); United States ENergy Information Administration (IEA); Barents Euro-Arctic Council (BEAC); Comité professionnel du pétrole (CPDP), Paris; Institut français du pétrole (IFP), Paris; National Oceanic and Atmospheric Administration (NOAA); The World Bank; Alaska Department of Environmental conservation, Division of Spill Prevention and Response; United States Coast Guard (USCG).