A little more than a year ago, Sandridge Energy (NYSE: SD), Chesapeake Energy (CHKA.Q), and Encana (OVV 1.13%) didn't exactly look like great investments. However, now that all three have new CEOs at the helm, each is turning its prospects around in its own unique way. Not only have all of these companies significantly improved their financial situations by unloading large amounts of debt, their capital expenditures are going more to what counts: putting the drill bit into the ground. 

Of these three companies, though, which one should investors be interested in the most? In the video below, Fool.com contributor Tyler Crowe and The Motley Fool's energy bureau chief, Joel South, break down the turnarounds at these companies and make their picks for their best investment. Tune in to find out.