Global 500: The top 25

Wal-Mart retakes the lead on Fortune's annual list of the world's biggest companies. See which other outfits top our list.

Exxon Mobil
2. Exxon Mobil
Global 500 rank: 2 (Previous rank: 1)
2006 Revenues (millions): $347,254
Headquarters: Irving, TX
Country: U.S.
Get quote: XOM

Though it's not No. 1 this year, the oil giant remains the most profitable company in the world, with $39.5 billion in 2006 earnings, thanks to record crude oil prices in 2006. Revenues are up 2% over last year. And profits jumped 9%. The outfit is a leader in energy exploration, with projects in Africa, Russia, and the Persian Gulf.

See more Global 500 data for Exxon Mobil

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Full list Old-economy outfits top Fortune's annual Global 500 list, thanks to rising oil prices and a slew of mergers that drove record profits. (more)
Most profitable Exxon Mobil leads our list of top earners this year. Which other companies are among the most profitable on the planet? (more)
Money losers Which automaker lost a whopping $12.6 billion last year? And just how far into the red are stalwarts like Goodyear and Tyson Foods? (more)