UNIONDALE, N.Y. -- They were forced to go the distance, but the St. Louis Blues completed a successful four-game road trip Saturday at Nassau Veterans Memorial Coliseum.
The Blues erased 2-0 and 3-2 deficits and Kevin Shattenkirk scored in the third round of the shootout to lift St. Louis to a 4-3 victory against the New York Islanders.
Vladimir Tarasenko scored twice and T.J. Oshie erased a 3-2 deficit with 26.7 seconds left in regulation for St. Louis, which went 3-1-0 on the trip. Jaroslav Halak made 33 saves for the victory. Alexander Steen had a pair of assists and scored in the second round of the shootout.
Thomas Vanek, Kyle Okposo and Matt Martin scored for the Islanders, who once again failed to protect a multi-goal lead on home ice. Kevin Poulin made 32 saves.
The Islanders were awarded a power play with 2:16 left in overtime when Blues forward Jaden Schwartz tripped Thomas Hickey in the neutral zone.
They thought they had the game won with 1:15 left, when Vanek redirected a shot past Halak. But after a lengthy video review, it was determined Vanek had kicked the puck over the goal line with his left skate.
New York got on the board first when Vanek scored 4:01 into the game. With the teams at even strength, Okposo seized control of the puck from Steen and chipped it in front to Vanek. The Isles sniper quickly fired a wrister past Halak for his 19th goal of the season.
Okposo doubled the Islanders' lead with 4:49 remaining in the first period. Vanek sent the puck off left wing around the net for Okposo, who caught Halak moving to his left and quickly stuffed the puck past the Blues goaltender on a wraparound to make it 2-0. It was Okposo's 22nd goal of the season.
Tarasenko cut New York's lead in half during a 4-on-4 situation at 17:17 of the first. The 22-year-old took a pass from Maxim Lapierre and let go what seemed to be a harmless wrist shot from the slot that found its way past Poulin to make it 2-1.
New York outshot St. Louis 13-8 in the first period.
Tarasenko tied things up 1:17 into the second with his 17th goal of the season. Shattenkirk one-timed a shot from the top of the right circle that Poulin denied with his pads, but Steen collected the rebound and fed Tarasenko in the slot, where he beat Poulin with a wrister to make it 2-2.
Martin put the Islanders back in front with his fourth goal of the season at 3:58 of the second. The rugged forward cruised into the slot and completed a tic-tac-toe passing display with Casey Cizikas and Colin McDonald by one-timing McDonald's feed past Halak for his second goal in the past three games.
Poulin preserved the one-goal lead midway through the second, when he fought off a crowd of players in front, stretched across the crease and robbed Steen with his right pad.
St. Louis was inches away from tying the game nine minutes into the third period when Steen collected a rebound right in front and caught Poulin out of position, but his wrist shot hit each goal post and failed to cross the goal line.
Oshie had a golden opportunity about eight minutes later, but his wrister from the slot also hit each goal post without going in. The play was reviewed at the next whistle, but replays concluded the puck never crossed the goal line.
But Oshie had a second chance in the final minute of regulation and didn't miss again. The U.S. Olympian took a pass from Alex Pietrangelo, spun around and fired a wrist shot from the slot past Poulin to make it 3-3 at 19:33.
The Islanders will host the Boston Bruins on Monday before facing the New York Rangers on Wednesday as part of the 2014 Coors Light NHL Stadium Series at Yankee Stadium
Follow Brian Compton on Twitter: @BComptonNHL