At the end of an oil price cycle (when supply is falling and demand is going up) there are often sharp reversals. The article at the link below explains why. The primary reason is that "speculators" tend to "over play their hands", especially on the short side.
http://oilprice.com/Energy/Oil-Prices/O ... ersal.html
Oil Prices - August 5
Oil Prices - August 5
Dan Steffens
Energy Prospectus Group
Energy Prospectus Group