"The List," a regular feature of Foreign Policy's excellent web site, this month includes six world leaders--five presidents and a prime minister--who have, on average, been in office over thirty years. Teodoro Obiang Nguema Mbasogo of Equatorial Guinea is fifth on the list at twenty-eight years in power. Foreign Policy notes that Obiang is Africa's richest ruler with a net worth estimated at $600 million.
Corruption keeps Obiang in power. Oil makes him wealthy.