You're confusing a stock with a flow. If we all spent 10% of our money on oil, their revenue would be 2% of GDP and market cap would be greater. Say they have

You're confusing a stock with a flow. If we all spent 10% of our money on oil, their revenue would be 2% of GDP and market cap would be greater. Say they have 60% net margin and market discount rate is 5%, fair value would be $180 bn * 0.6 * 20 which gets you comfortably past 2 trillion. Their revenue is over double Google.