Oliver was cut from major league camp Saturday, Roch Kubatko of MASN reports.
As a result, Oliver, who was a non-roster invitee, will likely begin the season at Triple-A, where he spent the bulk of the 2015 campaign, splitting the season between the Orioles and Rays organizations. In 16 appearances for Baltimore's Triple-A affiliate, Oliver registered a 3.72 ERA and 1.345 WHIP across 29 cumulative innings.