For comparison, the cost of downtime for a single oil rig is on the order of $100 per second. Petrobras, as an example, operates 70 rigs and has a market cap of $125 billion. Facebook has a market cap of $216 billion.
(source for cost: Cormorant Alpha shutdown in 2013)
Edit: misplaced parenthesis => my first number was way off, $70 000 vs $100. Redid analysis, made mental note not to do math before coffee intake.