ocr: Sao Tome has n0 mineral resources, although oil prospecting began in 1990. Almost all energy needs, apart from firewood, are met by oil imported from Angola. Sao Tome 1S very fertile; cocoa estates are finally back to pre-1975 productivity and crop diversitication is now a priority. Principe has better ports, but its wilds scenery makes it more suitable for tourism than farming.
