Exxon Mobil shoved aside Wal-Mart Stores to retake the top place on the Fortune 500, proving that Big Oil was king of the economy last year.
Exxon Mobil was the top selling-company in 2008, with nearly $443 billion in revenue, a jump of almost 19% from the prior year. The Irving, Texas-based oil giant was also the most profitable, with earnings of $45.2 billion.
