Alexander Steen scored his league-leading 15th and 16th goals and the St. Louis Blues' slumping power play woke up with three goals in a 7-3 win over the Colorado Avalanche on Thursday night.
St. Louis has won seven of nine and is off to the fastest start in franchise history with 12 wins in its first 17 games.
Colorado lost back-to-back contests for the first time this season.
Derek Roy, David Backes, Vladimir Tarasenko, Chris Stewart and Jay Bouwmeester also scored for the Blues, who have won their last five home meetings with the Avalanche.
T.J. Oshie added four assists for the first four-point game of his career.
The Blues were 3 for 4 on the power play, breaking out of a 1-for-15 skid that spanned the previous five-plus games.
Steen, who pushed the lead to 3-1 with his first goal at 7:16 of the second period, has a point in 12 successive games, a career high.
St. Louis goalie Jaroslav Halak improved to 10-2-2.
Nathan MacKinnon, Matt Duchene and Ryan O'Reilly scored for Colorado, which lost 2-1 at Carolina on Tuesday.
Avalanche goalie Jean-Sebastien Giguere lost for the first time this season after winning his first five starts. He was pulled in the second period after allowing three goals on 14 shots, but re-entered at the start of the third. Giguere, who gave up five goals on 165 shots in his first five games, was looking to become the first Colorado goalie to begin the season 6-0.
The Blues scored four times in a span of 11:50 in the second period to break open a 1-1 game.
Backes put his team ahead to stay 2-1 with a power play goal 2:49 in the second period. He jumped on a rebound at the side of the net off a shot from Roy.
Roy, who added two assists, got the St. Louis attack started with a power play goal just 1:54 into the game. It was the first man-advantage goal given up by Colorado on the road this season. The Avalanche were 20 for 20 on kills over their first seven road games.
The Blues have scored first in their last nine games.
NOTES: The Blues signed D Carlo Colaiacovo to a one year free-agent contract. He was not in uniform on Thursday. ... The Avalanche had given up two goals or less in nine of their previous 10 games. ... The Blues had 10 shots or more in their last eight periods. ... The game featured three fights in the second period after the Blues took control.