Tied 1-1, Edmonton got its third power play of the night at 7:15 of the third period when Andrew Mangiapane was whistled for holding Darnell Nurse.
“In a 1-1 game, you look up holding in the dictionary, that’s holding,” Flames coach Darryl Sutter said.
Stymied on their first two-man advantages, it took just 13 seconds for Edmonton to convert with McDavid taking a pass from Leon Draisaitl from the middle of the slot, whipping a wrist shot past Markstrom’s glove.
“It was a nice play by Leo, as usual,” McDavid said. “(Zach) Hyman keeps it alive and he puts it on my tape. Just tried to work across and get my shot off. I’d been pretty quiet all night so just tried to get a shot on net and it went in.”
McDavid’s 16-game point spree (15 goals, 17 assists) is the longest active streak in the NHL and one short of his career high.
“It’s my job to produce and I always try to get a touch on games,” McDavid said. “Just tried to get my little piece in there.”
After a scoreless opening period, Calgary struck first when Backlund buried Blake Coleman’s rebound at 1:12.
The lead was short-lived with the Oilers pulling even at 4:58.
Coming off their first post-season meeting since 1991, the Flames and Oilers only meet three times this season and the season series is now over with Edmonton taking two of three. They had split their two games in October, each winning in the other team’s building.