"It was good to get the win for [Fleury]," Marchessault said. "We weren't necessarily there for him in his past two starts so it was good to get the win for him tonight."
Fleury (27-16-5, 2.77 GAA, .905 save percentage) got back on the winning side with an unusual script Monday.
He made 22 saves but didn't face his fifth shot until Edmonton center Ryan Nugent-Hopkins sent a 35-foot wrist shot his way 30:30 into the game.
"A tough start [for me], a little quiet, too," Fleury said. "Not many shots to start the game. You've just to [stay ready] in your head, right? Waiting, cold toes. It's a cold rink, right? But it just showed how well the team was playing. I knew they would come with some shots and some traffic and they did, but a huge goal by [Marchessault] in the third to tie it up."
The Golden Knights have 11 games remaining and the Oilers have 12, so the race for first place is far from over.
The Oilers managed a point Monday playing without captain Connor McDavid, who was ill, but have some work to do if they're to take a late run at the division title.
Edmonton has been outshot 168-99 in its past four games but is 2-1-1 in that stretch largely because of strong goaltending from Mikko Koskinen, who started three of those games and played 25:16 in relief of Mike Smith in the other, going 2-0-1 with a 1.44 GAA and .966 save percentage.
"This is as disconnected as we have been for a long time," Oilers coach Dave Tippett said after the game. "And it is not just tonight's game I am talking about, it's been a number of games here. We have our first practice in a long time tomorrow and hopefully we can fix some of those issues, but we can't continue to play like that and feel like we are a good team."
The Oilers next play against the Jets at Rogers Place on Wednesday (9 p.m. ET; SN, TVAS, NHL.TV).
"We've been able to get points because of our two goalies, but going down the stretch, you can't rely on them to make 40 or 50 saves a night," said forward Alex Chiasson, who had his 11th goal of the season Monday. "This is real adversity with [11] games to go in the season and we have to find a way for our group to create some momentum."