Hercules Offshore (HERO.DL) is one of only a few companies left that focuses on shallow water drilling. But even now it's moving away from onshore shallow water by selling rigs that have little use to the company. This is a good move right now but does it make Hercules a top drilling stock? Fool.com contributor Travis Hoium took a look at Hercules' recent $45 million asset sale and discovered that there are still better drilling buys out there.