The Oilers try to get their power play on track against the Senators, who aim for a sixth consecutive win at Rexall Place on Tuesday night.
Edmonton (20-34-8) has scored just two goals during an 0-1-2 skid after falling 3-0 to Minnesota on Thursday and 2-1 in overtime to Calgary on Saturday. David Perron tied the game midway through the third period, but Ilya Bryzgalov allowed a goal 1:50 into OT.
"In our own zone, for the most part, I thought we were all right," coach Dallas Eakins said. "The last goal was just a great lesson for our defensemen there. You have to win the battle. It's a simple battle and that's what happens when you lose a battle like that, especially 4-on-4."
The Oilers were outshot 30-22, going 0 for 2 on the man advantage. They are 0 for 19 during a six-game stretch since the beginning of February.
"On the power play, we're having troubles entering and we're having troubles finishing. On the one power play there, we must have had four or five chances and we couldn't capitalize. When that starts to happen, that starts to wear on you and you start doubting yourself," said Jordan Eberle, who's been limited to one assist in the last six games.
"For me personally, the biggest thing with our lack of offense, and we seem to go through it every season, is that our power play is dead."
The Oilers defeated the Senators 3-1 on Oct. 19 for their third straight win in Ottawa, but they haven't been able to beat them at home. The Senators have outscored the Oilers 22-11 during a five-game winning streak in Edmonton, though they haven't visited since Nov. 17, 2011.
Ottawa's last road loss in the series came 3-1 on March 14, 2004. Senators captain Jason Spezza has nine points over five career games in Edmonton.
Ottawa (27-23-11) suffered a 6-1 loss to Detroit on Thursday in its first game back since the break before beating Vancouver 4-2 in the Heritage Classic on Sunday. Clarke MacArthur and Erik Karlsson erased an early two-goal deficit in the first period, and 20-year-old rookie Cody Ceci put the Senators up for good midway through the second.
"I think it was huge that we tied the game before going into the intermission," Ceci said. "That was big for us, just because we've had it tough lately before the (Olympic) break and the game right after it.
"These are points that we need right now going down the stretch, and it means a lot to me. I'm just trying to earn my spot here."
Craig Anderson made 29 saves, improving to 11-3-4 with a 2.63 goals-against average in his last 19 games.
"It was one of those things where you have the butterflies going and the nerves going," he said. "It's a big win for us and it's a great venue and it's one of those things that we'll be smiling about for a while, because it's kind of a once-in-a-lifetime experience."
Anderson is 6-1-1 with a 1.74 GAA and four shutouts during an eight-game stretch against the Oilers, though he hasn't faced them in more than two years.
Edmonton's Ben Scrivens, who signed a two-year contract extension Monday, is 3-2-0 with a 1.80 GAA and one shutout in his last five starts. He went 1-2-0 with a 2.01 GAA and one shutout versus Ottawa over the previous two seasons while with Toronto.
Scrivens' presence made it easy for the Oilers to send Bryzgalov to Minnesota for a fourth-round draft pick Tuesday, one day before the trade deadline. Bryzgalov struggled this season, going 5-8-5 with a 3.01 GAA in 20 games.