Seconds after Khabibulin made a diving save after an odd bounce off the boards, Edmonton connected on the power play when Gagner's shot beat a screened Quick at 16:50.
"Even though the shot clock didn't show it, we out-chanced them quite a bit," Oilers coach Ralph Krueger said. "We just couldn't generate the type of offense we would have liked to down the stretch. The bounce at the end was of course, painful. If you look at the game, I think going to overtime and splitting this up would have been probably the right result, but we have to take it. We missed an opportunity to play our game the whole way. It's a bounce we have to swallow."
Edmonton once again had a great chance denied 3 minutes into the third when Quick stoned Hall point blank on a shot from the top of the crease.
The Kings finish a three-game road trip in Calgary on Wednesday. The Oilers play the fourth game of a five-game homestand Thursday against Minnesota before heading out on a nine-game road swing.
NOTES: It was the second of three games between the teams this season. ... Los Angeles came into the game having scored the fewest goals of any NHL team this season, with 30 in 13 games. ... Khabibulin made his second start in the Edmonton net this season after coming in to start the second period and earning his first win in more than a year in the Oilers' come-from-behind 6-4 win over Colorado on Saturday. ... Kings defensemen Alec Martinez (upper body) and Willie Mitchell (knee) remained out and are day to day, while Matt Greene (back) is out indefinitely. ... Teemu Hartikainen was back in the lineup for the Oilers, while Lennart Petrell (head) and Ryan Jones (eye) are day to day. Anton Lander (foot) and Andy Sutton (knee) are out indefinitely. ... Former Oilers forward Dustin Penner played in just his seventh game of the season for the Kings.