20 most profitable companies

Exxon Mobil was the most profitable company last year by far, raking in $39.5 billion in earnings. Who else made the top 20?

Wal-Mart Stores
13. Wal-Mart Stores
The house that Sam Walton built tops this year's Fortune 500 and ranks as the 13th most profitable company, with $11.3 billion in earnings for 2006. Total revenues of $351 billion were up 11%, despite the fact that the chain's same-store sales saw a slowdown.

Exxon Mobil

UAL

Citigroup

Bank Of America

General Electric

Pfizer

Chevron

ConocoPhillips

J.P. Morgan Chase

American Intl. Group

Microsoft

Altria Group

Wal-Mart Stores

Johnson & Johnson

Berkshire Hathaway

Goldman Sachs Group

IBM

Procter & Gamble

Wells Fargo

Owens Corning
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