Actually I believe it is a pretty good strategy. The company believes oil prices are at or close to bottom. As a consequence buying further hedges now for them doesn't make a lot of sense. They can sell the hedges they now have at a premium to what they paid for them, a relatively smart move if they don't need the capital immediately. And what did they do to guaranty they wouldn't need to use the hedges? They decreased their planned capital commitments.
Hedging is a tough business. You read about the cases where it worked for companies (eg. Encana was hedged all their production at $6/Mcf when gas prices had dropped to $4/Mcf) but seldom hear about those who lost money doing so. Over a number of years it usually works out that you are better off not to be hedged with one exception and that is when you have a large capital program that counts on being financed by oil/gas at a certain price. The old rule of thumb is you hedge enough to pay for your required capital outlay for the period of the hedge. In the case of an acquisition of a company you no doubt had a certain commodity price assumed in your acquisition economics. In this case it would make sense to hedge all of the newly purchased production at close to your price assumption until such time as the acquisition has paid out.