Hyman tied it 1-1 at 12:47 of the second period on a backhand shot from just outside the crease after Ryan Murray kept Blake Lizotte's attempt to clear the puck in the zone.
Moore gave the Kings a 2-1 lead at 17:12 on a shot from the right circle off Arvidsson's pass through the slot after a power play expired.
He completed the hat trick when he scored into an empty net with 53 seconds left in the third period for the 3-1 final.
"He's been there all year for us, offensively. Just hasn't gone in a lot for him. I haven't looked lately, but I know he was leading us in shots on goal, which means he is around the net a lot," McLellan said of Moore.
The Kings outshot the Oilers 13-6 in the first period while blocking 16 shots.
"I think it's definitely something that we've talked about is just starting on time," Hyman said. "The shot clock can sometimes be deceiving, I think, but you know when you're down 10-0 on the shot clock, whatever the case may be, it means the other team's got the puck a lot."
Los Angeles had 29 blocked shots to eight for Edmonton.
"Kind of from the first minute, it felt like they were getting in front of everything. Credit to them, they did a lot well tonight defensively," McDavid said.
NOTES: Moore is the first California-born player to get a hat trick for a California-based NHL team. His previous two multigoal games in the NHL were against the Vegas Golden Knights on April 14, 2021, and at the Pittsburgh Penguins on Jan. 3. ... The Kings are 8-1-0 when leading after the second period. … This was the second time the Oilers failed to score at least two goals; they were shut out by the St. Louis Blues 2-0 on Oct. 22. … Arvidsson became the ninth player from the 2014 NHL Draft with 300 points. He has 150 goals and 151 assists in 468 games.