Apple's yearly developer conference should see iOS 8, OS X 10.10, and likely some hardware.
Apple Closes as the Most Valuable Company in the World
Apple closed the day at $363.49, with a market cap of $337.17 billion. Exxon Mobil ended at $68.03, with the company valued at $330.88 billion.
Apple might be worth more than Exxon Mobil, but XOM remains a much bigger company. Exxon made $10.7 billion in profit on $121.4 billion in revenue in the June quarter with 83,600 employees.
Apple made $7.3 billion on $28.6 billion in revenue with 46,600 employees last quarter.