Andrew Ference is out indefinitely with a concussion, Jack Michaels of the Oilers Radio Network reports.

Ference is out indefinitely with a concussion, Jack Michaels of the Oilers Radio Network reports.

Analysis:

With Ference -- who has 14 points in 70 games -- out, it looks like Keith Aulie is slated to skate along with Martin Marincin on the Oilers' second defensive pairing on Wednesday against the Avs.