The 20-year-old hasn't played since he suffered a concussion during a 3-1 win over the Calgary Flames on March 17, but has reportedly been playing with the injured shoulder for a while.
"I've been playing with a pretty bad shoulder for most of the year and I'm excited to see what I can do after it's fixed," Hall said via his Twitter account.
The Oilers currently sit in 14th place of the Western Conference and are set to miss the playoffs for the sixth straight season.
The loss of Hall could bring the struggling Oilers closer to the second overall pick at the 2012 NHL Entry Draft over the Montreal Canadiens. The Columbus Blue Jackets are expected to get the top pick.
In 61 games this season, Hall has recorded 27 goals and 26 assists for 53 points.