Apple Computer has slipped back one place to 301st in the annual Fortune 500 ranking of America's largest companies.

Apple's revenue last year was $6.207 billion dollars. Top spot for for the third year in a row is Wal-Mart Stores with $258.681 billion. HP is 11th ($73.061), Dell 31st ($41.444), and Microsoft 46th ($32.187) – up one place from last year. Intel is 53rd with $30.141, and Walt Disney is 60th ($21.061).

Fortune magazine's 500 listing is closely followed by business and government and is even listed in Webster's New World Dictionary as a synonym for the most prestigious, influential and largest corporations.

The full list of companies, and an archive of the contenders since 1955, can be viewed on the Fortune Web site. Subscription is required.