The Oilers strayed a few times. Milan Lucic slashed Manning in the first period and was penalized. Leon Draisaitl knocked Manning down in the second and was sent off for interference.
The temptations were many in the first two periods as the chirping and the shoves seemed constantly to be boiling below the surface. It was the second-period fight between Maroon and Manning that finally may have put the matter to rest.
"It's one of those things," Maroon said. "It's over and done with now. [Manning] plays the game really strong and plays the game really hard and we had our fight and it's over, done with.
"I'm a guy that's going to stick up for my teammates. But I'm going to do it the right way. I'm not going to go out there and cheap shot someone or go out there and jump a guy.
"He plays the game hard. You've got to tip your cap sometimes. Some words were exchanged and you hear those things and you want to stick up for your teammates, especially your captain."
Manning, who played 15:16, did not shy away from being a target during the game.
"It didn't bother me," Manning said. "I'm not scared of fighting. It was just a matter of time. I wasn't really worried or thinking about that today."
He said he was focused on hockey, not score-settling.
"I was going to go out and play hockey," Manning said. "I've been playing well. To go out and fight for the sake of fighting just isn't what I'm about."
Asked if the feud is finished, he said: "Let's hope so. I'd love that. Connor didn't say a word out on the ice tonight. Patrick said, 'Good job,' after [the fight]. We'd do the same thing if one of our superstars got hurt. We understand it."
The good signs for the Oilers, who begin a six-game road trip at the Chicago Blackhawks on Saturday (7 p.m. ET; NHLN, SN, WGN, NHL.TV), are that they won a game full of distractions, that McDavid was dominant again, and that they've climbed to within four points of the Pacific Division-leading San Jose Sharks.
History shows Edmonton had 70 points in 82 games last season; but with another hurdle cleared, that's becoming less and less relevant with each day of the 2016-17 season.