In a medium sauce pan, heat oil, coconut or brown sugar, and orange juice. Mix until the sugar dissolves, then add in the vanilla and frozen berries. Bring to a slight boil over medium heat and begin reducing until berries are thick and syrupy—stirring occasionally.
Reduce for 20-23 minutes, if a lot of water from the frozen berries. Remove the sauce from heat when the berries reach your desired consistency—more time equals a thicker compote.