You can see from the weekly chart that Northern Oil & Gas had been falling steadily since 2011 but it is possible that in the last few months the trend has reversed with a wide curve now moving up off the bottom. I think the idea of a change of direction may be supported by the large increase in volume - on average the stock is being traded about three times more heavily now than it was before May. I guess a few months isn't enough to establish with great certainty that the multi-year fall is over, but... I made my bet today, please wish me luck :-)