Looks to me like there might be an interest lag between the share price movement and the strong oil price - I would be inclined to buy at these levels ($4.41 @ 26 Sep 17) and maybe top up on the way up?
I see the price of oil is starting to tick up again and has been further strengthened by issues with the North Sea oilfields where a supply pipeline has been closed down after a crack was discovered. An interesting recovery play?
I have been noticing it creeping back up as well. I'm still pretty cautious, but I do have small amounts of a number of these companies in my portfolio. FANG is probably the largest energy holding in my portfolio these days - I'm still holding 100 shares.
Interesting developments:- https://seekingalpha.com/article/4184821-chesapeakes-completions-designs-reinventing-company