Looking at the current stock chart, XOM could pull back up to 78 or 76, finding support on the other side of the downward channel. It could keep on declining as well jumping on the other side of the channel, but I'd hope for a rebound.  

It's a great company, with current dividend yield of 3.58%, I wouldn't mind to keep it long term. I actually bought the stock before $77.27, thinking to hold it long time, and instead I sold it at 86.97, because I thought it would pull back a little in the short term.  It made me $194 profit with just 20 shares.

I set a buy order for 43 shares at $78.70, not far from my original buy price, we'll see if it will ever get filled.