Tim McGauley had two goals and an assist for Brandon, with both of his goals coming on the man advantage in the second period.
McGauley had scuffled a bit lately, notching 13 points in the last 16 games, and the Washington Capitals' prospect said on CKLQ's post-game show that it felt good to bust out.
"It's been a long struggle, I would say, for how we've been playing," said McGauley, "To get those goals was huge for our confidence and, even though it was an 8-3 game, it was good to get the feeling of scoring again."
Nolan Patrick also scored twice for Brandon to extend his goal-scoring streak to eight games.
That's the longest for a Brandon player since Mark Stone had a pair of eight-game goal-scoring streaks during the 2011-2012 season.
John Quenneville and Ty Lewis added a goal and an assist each while Duncan Campbell and Tyler Coulter had the other Brandon goals.
Jayce Hawryluk had three assists to extend his point-streak to eight games while Kale Clague and Ivan Provorov also had three assists each.
It was Brandon's first win in four tries against Edmonton this year, and possible first round playoff opponent for the Wheat Kings.
"We knew we'd lost three games this year to these guys and hadn't beat them yet, and that they're a potential playoff matchup so we knew this was a huge game for that reason as well," said McGauley, "Our start was fantastic and it felt like a playoff game out there and it was real fun to be a part of."
Brett Pollock had two goals and an assist for the Oil Kings, who got 18 saves from goaltender Patrick Dea and Payton Lee.
The victory leaves the Wheat Kings with a nine-point lead atop the East Division, and just three points behind Lethbridge for first-place in the Eastern Conference.
The win coupled with Swift Current's home-ice loss to Saskatoon also clinched a playoff spot for Brandon for the 15th time in 16 years.
The Wheat Kings now head out on a five-game road trip that begins Sunday night in Prince Albert (6:35 p.m., 880 CKLQ).
Chaff...Saturday's game was the club's 'Pink the Rink' night, with the auction of the club's pink-themed jerseys raised close to 28-thousand dollars for the Canadian Cancer Society. Ivan Provorov and Macoy Erkamps jerseys went for $1,500 apiece...Brandon scratches Friday were F Reid Duke (upper body), F Linden McCorrister (upper body), F Connor Gutenberg (lower body) and F Jaeger White (healthy)...it was the third straight home game and seventh time this season that Wheat Kings activated the 'Lucky 7' promotion, giving all fans in attendance free breakfast at Smitty's restaurants in Brandon...the club record for most consecutive games scoring a goal is 15, set by Brian Propp during the 1978-79 season...attendance Friday was 4,804.