As per the official team site, The Oilers have officially sent Colten Teubert and Antti Tyrvainen to Oklahoma City of the AHL, and have placed Yann Danis on waivers for the purpose of assigning him to the AHL.
Teubert didn't have a chance to make much of an impression this time around because of an injury sustained in a fight at the Young Stars tournament, and will need to work his way back to Edmonton with strong play in Oklahoma.
Tyrvainen did make an impression, but it wasn't enough to earn a roster spot. Still, it's fair to expect that he'll be a regular in OKC's lineup, and may be one of the players who sees time in the NHL if the Oilers sustain many injuries on either wing.
Danis' demotion was pretty much written in stone when he signed his contract, but it's also very likely that he'll have a chance to come back to the NHL later in the season. Thankfully, the netminder is exempt from re-entry waivers because his AHL salary is not greater than $105,000 (and in fact, it is exactly $105,000).
That leaves 32 players on the current roster and leaves us with the following battles:
Defense: Up to three spots (Ryan Whitney injury, possibility of carrying eight defenders) for Taylor Chorney, Taylor Fedun, Jeff Petry, and Corey Potter.
Forward: Up to three spots (Sam Gagner injury, Ben Eager injury, possibility of carrying fourteen forwards) for Gilbert Brule, Josh Green, Teemu Hartikainen, Ryan Keller, Anton Lander, Ryan O`Marra, and Lennart Petrell.
If all of the injured players remain injured, I'm betting on Brule, Chorney, Petrell, and Petry.