MacTavish "will address the Oilers performance through 26 games and take questions," according to the club. The news conference is set for 9 a.m. local time.
The Oilers did not say whether MacTavish would announce any personnel changes.
Embattled coach Dallas Eakins is in his second season behind the bench for Edmonton, which is last in the Western Conference with 17 points in 26 games.
As the team prepares for its next game Sunday against the San Jose Sharks, members of the Oilers brass are engaging in organizational meetings to survey the situation.
The Oilers have not won a game since beating the New York Rangers on Nov. 9. They have earned only four points since.