Alex Forsberg and Jack Walker each had a goal and an assist for the Royals (25-19-3) while Justin Paulic kicked out 37-of-40 shots for the win.
The Oil Kings (22-18-5) trailed 3-1 late in the third period before Lane Bauer and Luke Bertolucci scored 10 seconds apart to force extra time. David Koch also scored for Edmonton.
Tristan Jarry turned aside 26-of-40 shots for the Oil Kings.
Victoria went 2 for 7 on the power play while Edmonton scored once on seven chances with the man advantage.
HITMEN 5 PATS 2
CALGARY — Adam Tambellini registered a hat trick and Mack Shields made 31 saves as the Hitmen toppled Regina.
Connor Rankin scored once and set up two more for Calgary (24-17-5), which halted a three-game slide. Keegan Kanzig added the other goal.
Braden Christoffer and Austin Wagner supplied the offence for the Pats (26-16-4), who got a 19-save outing from Daniel Wapple.