ocr: Oilis by far the Congo's most important esource. Natural gas reserves have yet to be exploited; the oil industry currently tlares excess gas. Bauxite andi iron ore eseives are not large enough to be protitably mined and phosphate production was abandonedin 1977. Chinese aidhas helped build two hydroelectric dams, on the Bouenza and Djoue rivers. A third is currently being built on the Léfini at Imboulou.
