Evan Bouchard scored 47 seconds into overtime as the Edmonton Oilers relinquished a two-goal lead before recovering to beat the visiting Philadelphia Flyers 3-2 on Wednesday.
Bouchard's 11th goal was the second game-winner in an extra session this season for the defenseman, who also assisted on one of Zach Hyman's two goals.
Edmonton's Tristan Jarry made 30 saves.
The Oilers improved to 14-3-3 (31 points), matching their second-highest point total through 20 games in franchise history. They also had 31 points in 1984-85, while the 1983-84 team set the benchmark with 33 points (16-3-1).
Tyson Foerster and Travis Sanheim rallied the Flyers to force overtime and extend their point streak to three games (1-0-2).
Dan Vladar set aside 21 shots.
A 31-goal scorer in 58 games last season, Hyman entered Wednesday with just one goal and an assist this season. A possible concussion and a neck injury forced him to miss 11 of Edmonton's first 19 games.
The 34-year-old scored twice in a 10-minute span of the second period for his first multi-goal game since March 6, when he scored twice in a 6-3 loss to the Carolina Hurricanes.
Hyman opened the scoring with 15:47 left in the second period, positioning himself perfectly after Mattias Ekholm's blast from the point sailed wide and caromed directly to him.
Hyman made it 2-0 on a power-play goal with 5:57 remaining in the second. Connor McDavid found Hyman posted in front of the net. Vladar stopped Hyman's initial attempt but couldn't control the rebound, which Hyman backhanded into the net.
On the primary assist, McDavid became the fourth player in NHL history to open a season with a 20-game point streak. Dany Heatley of the Ottawa Senators was the last to accomplish the feat in the 2005-06 campaign.
The Flyers' rally started less than three minutes later after Jarry was whistled for tripping Noel Acciari. Foerster took an east-west pass from Owen Tippett and beat Jarry with a wrister from the left faceoff circle.
Sanheim tied the game with 8:18 left in regulation, driving down the boards before squeezing a shot past Jarry from near the goal line.
--Field Level Media