Zenon's 2008 diesel and margin collapse
When crude collapsed from about $147 a barrel and the Nigerian stock market crashed in 2008–2009, his inventory and equity fell in value while the loans stayed fixed, leaving him with debts reportedly in the hundreds of billions of naira. He spent years selling assets and repaying lenders instead of defaulting, and later re-emerged as chairman of Forte Oil and a controlling investor in Geregu Power.