Global 500: 20 money losers

In a dismal year, these 20 companies saw the biggest losses. Badly timed acquisitions, exposure to subprime mortgages, and rising oil prices are a few of the culprits.

See the full listRoyal Dutch Shell takes the No. 1 spot. See the rest of the world's largest companies. More
20 money losersBadly timed acquisitions, subprime mortgages, and rising oil prices are to blame. More
Most profitableOil companies are the biggest money makers on the Global 500. More
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