Exercising Caution With Exxon, Conoco and Chevron

The recent drop in oil prices has captured the attention of many investors lately. Oil is trading roughly 25% lower than its high for the year, and oil-company stock prices have been affected by the drop, making them attractive to some investors. These investors may be wondering if now is an advantageous time to buy shares in anticipation of good earnings report. This time around that might be dangerous.