Which Companies Have the Most Cash on Hand?

The top one probably isn't too hard to figure out (think gas pump gouging), but here's a list of the top 15 firms in the U.S. in terms of hoarded cash:

1. Exxon Mobil - (XOM) - Total Cash: $32.007 Billion
2. Cisco Systems - (CSCO) - Total Cash: $29.531 Billion
3. Apple - (AAPL) - Total Cash: $25.647 Billion
4. Berkshire Hathaway - (BRK.A) - Total Cash: $25.539 Billion
5. Pfizer Inc - (PFE) - Total Cash: $23.731 Billion
6. Toyota Motor - (TM) - Total Cash: $23.151 Billion
7. Microsoft - (MSFT) - Total Cash: $20.298 Billion
8. Google - (GOOG) - Total Cash: $15.846 Billion
9. Royal Dutch Shell - (RDS.A) - Total Cash: $15.188 Billion
10. Wyeth - (WYE) - Total Cash: $14.54 Billion
11. IBM - (IBM) - Total Cash: $12.907 Billion
12. Johnson & Johnson - (JNJ) - Total Cash: $12.809 Billion
13. Intel - (INTC) - Total Cash: $11.843 Billion
14. Hewlett Packard - (HPQ) - Total Cash: $11.255 Billion
15. Oracle - (ORCL) - Total Cash: $10.646 Billion