"Games are always important when you're playing against other teams in your division," Gaudreau said. "But when you get to play the Battle of Alberta, on a Saturday, Hockey Night in Canada and get a win in Edmonton, it's a lot of fun.
"It was a good team effort. We had a blast out there. It's nice to go back to Calgary with two points."
Gaudreau extended his point streak to a new career high of 11 games in the victory. He has 10 goals and 22 points in a span dating back to Dec. 31, 2018.
Giordano, Elias Lindholm and Matthew Tkachuk also extended their point streaks in the win, going seven, seven, and eight straight games, respectively, with a notch on the score sheet.
With the Oilers mounting a powerful third-period surge, Mikael Backlund put this one to bed with a snipe off the far bar and in with 3:45 to play, off a turnover from rookie D man Caleb Jones.
The goal was Backlund's 300th career point.
Sean Monahan's powerplay marker at 16:03 rounded out the scoring, as he finished off a beautiful centering pass from Tkachuk.
Oliver Kylington also found the back of the net, and David Rittich made 22 saves in the victory.
"5-on-5, we played really well," said Giordano, who's now tied with Brent Burns for the league lead in scoring among defenceman with 52 points. "We didn't give up many scoring chances all night. I thought their looks came 4-on-4 or on their powerplay, so we did well. We had some big, timely goals, a couple powerplay goals. ... They starting climbing back into it, but we stayed calm, and [that] was a big goal by Backs to ice it."