Seguin gave the Stars a 3-2 lead at 1:34 of the third period with a deflection of Alexander Radulov's point shot. He has six points (four goals, two assists) in his past six games.
"He's competing a lot more, playing the right way," Benn said. "When you do that, you're going to get more points."
Zadorov scored his first goal with the Flames to tie it 3-3 at 16:03. He beat Khudobin glove side with a wrist shot from the high slot.
"It wasn't our A game, and I don't think we were very sharp and our execution wasn't there, but what's nice to see is that we're competing till the end of the game, we're not getting away from our game," Lucic said. "We're sticking with it and we're getting ourselves back into games, keeping ourselves in games."
NOTES: Benn's overtime goal was his 10th in the NHL, passing Mike Modano for the most in Stars history. … Radulov has four points (one goal, three assists) during a four-game point streak. ... Gurianov was a healthy scratch in a 4-3 shootout loss at the Winnipeg Jets on Tuesday. … Tkachuk has five points (four goals, one assist) in a five-game point streak. ... Forward Brad Richardson had two hits in 9:00 of ice time in his Flames debut.