Sam Gagner was certain he was in the clear when he wound up behind Colorado Avalanche goaltender Semyon Varlamov early in the third period of Saturday's game at the Pepsi Center.

The officials said otherwise and waved off Ales Hemsky's goal, leaving the Edmonton Oilers frustrated and down 2-1.

There was no penalty called on the play.

"The explanation was that I was in the crease. It's frustrating," said Gagner. "The puck was there.

"I was just going for the puck and I tried to stay out of the way of the goalie and I did that. That's why he said he didn't call goalie interference because I didn't touch him. I thought it was a good goal. Frustrating call."

Oilers head coach Tom Renney said he was certain Avalanche winger Gabriel Landeskog pushed Gagner into the crease.

"Too bad. A great play all around," said Renney.

"(Oilers forward Linus Omark) made a great play outside the blue-line to push their defender off the puck and we went in on the attack. To me it was a good goal, but I guess that's why I'm behind the bench and he's reffing."