Erik Cole, Lubomir Visnovsky, and Robert Nilsson scored power-play goals in the second period Friday night, helping the Edmonton Oilers to a 4-3 victory over the Calgary Flames.Trailing 2-1, Edmonton seized control of the game in the second thanks to five consecutive power-play chances, three of which the Oilers capitalized on.Cole tied the score at 6:30, tipping in a slap shot from Sheldon Souray. Source: NHL