Marathon Oil (MRO)

Total Stock-based Compensation Expense

Total employee stock-based compensation expense was $43 million, $66 million and $78 million in 2008, 2007 and 2006. The total related income tax benefits were $16 million, $24 million and $29 million. In 2008 and 2007, cash received upon exercise of stock option awards was $9 million and $27 million. Tax benefits realized for deductions during 2008 and 2007 that were in excess of the stock-based compensation expense recorded for options exercised and other stock-based awards vested during the period totaled $7 million and $30 million. Cash settlements of stock option awards totaled $1 million in 2007. There were no cash settlements in 2008.

Total Stock-based Compensation Expense

Total employee stock-based compensation expense was $43 million, $66 million and $78 million in 2008, 2007 and 2006. The total related income tax benefits were $16 million, $24 million and $29 million. In 2008 and 2007, cash received upon exercise of stock option awards was $9 million and $27 million. Tax benefits realized for deductions during 2008 and 2007 that were in excess of the stock-based compensation expense recorded for options exercised and other stock-based awards vested during the period totaled $7 million and $30 million. Cash settlements of stock option awards totaled $1 million in 2007. There were no cash settlements in 2008.