Dryad Maritime, the UK-based specialist in maritime intelligence, has completed an analysis of a specific type of maritime crime that poses a risk to shipping in the Gulf of Guinea, West Africa. The hijack of vessels for the theft of refined fuel cargoes, termed Extended Duration Robbery (EDR) by Dryad, has recently attracted media attention following an extension of the threat to the waters of Cote D’Ivoire. According to Dryad, Nigerian criminal networks lie at the heart of this relatively sophisticated, violent crime which can see vessels under pirate control for up to seven days. Black market demand sustains the illegal market in stolen cargoes, whilst organised crime and corruption ensure its continuation in the face of regional attempt to deal with the symptons and tackle the causes.