Chevron Corp. (CVX - Get Report)
Chevron becomes a sell if shares violate the $104 level.

Imperial Oil Ltd. (IMO - Get Report)
IMO's downtrend is alive and well this summer.

Cimarex Energy Co. (XEC - Get Report)
XEC's break through $115 support this week is a near-term sell signal.

Read Full Article: These 3 Big Energy Stocks Could Be Turning Toxic

This article was written by a staff member of TheStreet.