Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of EXCO Resources (NYSE: XCO) fell 10% in early trading after the Greece bailout was put into question.

So what: Oil dropped dramatically this morning falling to $89.17 early and putting pressure on oil and gas stocks. With EXCO set to release earnings, after-the-bell traders got a little worried that the European fallout could have an effect on future earnings.

Now what: The move today hit many oil and gas explorers, but I would wait until tomorrow to make a decision on whether EXCO is a buy or sell. The earnings report and any guidance from management should have more effect on your decision than a short-term panic in energy markets. Today, sitting on your hands is the right move with this stock.

Interested in more info on EXCO Resources? Add it to your watchlist by clicking here.