As the situation in Egypt escalates, crude oil prices have approached the $100 mark. There is always a significant risk premium built into the price of crude based on the tumultuous political nature of the Middle East. Egypt is not a huge oil producer, but it is important to the oil market because of its proximity to key shipping lanes.
In reality, the massive protests against Egyptian President Mohamed Morsi we are currently seeing probably won't end up resulting in any supply disruption—or at least, any disruption that offsets the decent supply levels of global crude.
The issue, however, is that the market has been reminded that there is headline risk, and that short oil positions can cause anxiety. This is particularly true considering that the market will be closed for the Fourth of July holiday.