I thought Apple Computer was the biggest company in California.
I believe Apple is coming to Nevada - parts of it are anyway.
[Curly Dave]: Last I looked, Apple was larger than either one. Maybe not anymore since the stock is down.
See: Apple was 17th largest in revenue and third in profit (behind ExxonMobil and Chevron); ExxonMobil was number 1 in both revenue and profit. These were the latest Fortune 500 figures I found online.
See also: Depends on how you measure it.
Currently, I suspect that Apple has higher total stock valuation than ExxonMobil. The revenue and profit figures indicate that the profit margin is far greater in computers and electronics than in oil and gas.