Occidental Petroleum

No. 43

Industry: Energy
Sales; $24.2 billion
Net Income; $6.8 billion

Occidental Petroleum (OXY) President Stephen I. Chazen likes to joke that his company shouldn't be called Big Oil. "We're peanut oil," he says. With a market value of $49 billion, Oxy is hardly a pipsqueak. But thinking like a niche player and jumping quickly on opportunities has allowed it to outmaneuver some of the biggest names in the business.

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