Lee Raymond
Company: ExxonMobil
Years as CEO: 1993-2005
Severance Package: $320.6 Million
Raymond helped create the largest oil company in the world when he oversaw the merger of Exxon with Mobil in 1999. Under his tenure, profits at the company climbed from $5 billion to more than $25 billion, according to GMI Ratings. The business continued to be dogged by a poor environmental reputation, though.