Last season the Dallas Stars were actually the most disciplined team in the league with 6.7 penalty minutes per game - contrast that with the Nashville Predators, who had 12.6 penalty minutes per game, the most in the NHL. The Stars had a penalty killing percentage of 79% which was good for 19th in the league, however. Since they were so good at staying out of the box to begin with, they only gave up a total of 46 power play goals against, putting them at 12th best in the NHL in that regard.
It is easy enough to look up penalty minute (PIM) stats for a player and come to a quick conclusion on how disciplined that player was for the season, but there is much more to the story.