Equatorial Guinea Obiang Mangue, and other close relatives with powerful positions in the security forces. The tension may be rooted in a power shift arising from the dramatic increase in oil production which has occurred since 1997. In 2004 a plane load of suspected mercenaries was intercepted in Zimbabwe while allegedly on the way to overthrow Obiang. A November 2004 report named Mark Thatcher as a financial backer of the 2004 Equatorial Guinea coup d'état attempt organized by Simon Mann. Various accounts also named the United Kingdom's MI6, the United States' CIA, and Spain as tacit supporters of the coup attempt. Nevertheless,
Equatorial Guinea into Riggs Bank, a Washington-based bank into which most of Equatorial Guinea's oil revenues were paid until recently, and which also banked for Chile's Augusto Pinochet. The Senate report showed at least $35 million siphoned off by Obiang, his family and regime senior officials. The president has denied any wrongdoing. Riggs Bank in February 2005 paid $9 million in restitution for Pinochet's banking, no restitution was made with regard to Equatorial Guinea. From 2000 to 2010, Equatorial Guinea had the highest average annual increase in GDP (Gross Domestic Product), 17%. Equatorial Guinea is a member of the Organization for the