| http://www.w3.org/ns/prov#value | - have made a key contribution to growth.While the majority of reserves and production remain concentrated in six countries ??? Nigeria, Libya, Algeria, Angola (oil), Sudan (oil) and Egypt (gas) ??? there have been significant new discoveries in Ghana, Tanzania, Mozambique and Uganda, with prospected fields in other countries, including Sierra Leone, Mali and Kenya.10 largest African producers of o
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