I am biased because I'm in, so I'm not going to give some crazy off the cuff figure.
I've done my own calcs on their value according to their assets, as well as how I see them going over the next 12 months. My figures look rosey, but it's up to you to do your own calcs, as they are very open to interpretation, with fluctuating oil prices etc.
I wouldn't call DNX overly high risk , by O+G standards. They have low risk flows from the North Sea, that they use to expand in high risk zones. That's why they can easily take small knockbacks without much impact on the cashflow.
It's a strategy that seems to be working. Look at the % growth in all their key stats over the last few years. Can't see them suddenly losing their ambition and a cessation of growth.