Energy Corp. (VLO) analysis Valero Energy Corporation (VLO) has been on our watch list for almost six months now. We have watched as this stock fluctuated along with the price of oil. When oil goes up, VLO follows suit; when oil tumbles so would VLO. Trading at $48.89, just a few point above its 52 week low of $46.84, we believed this stock is starting to look attractive. The last couple of days have been rough for VLO shareholders as oil has fallen over 10%, closing today below $56/barrel.