A third-period goal by Alex Pietrangelo made the difference in helping the Blues to their seventh win their last eight games. Pietrangelo scored on a wraparound shot with 5:14 to play in regulation.
Halak has four shutouts this season and 20 in his six-year career, the last two having been spent with the Blues.
Nikolai Khabibulin allowed the lone goal on 39 shots in Edmonton's seventh loss in eight contests.
NBC reportedly holds celebs hostage to Jimmy Fallon's show
Aaron Carter is still in love with Hilary Duff