Line 24 mini muffin cups with mini paper liners. Set aside. Melt the candy melts and oil in a glass bowl in the microwave at half power, stirring every 30 seconds till smooth. Divide between the muffin cups.
Sprinkle the crushed Oreos evenly over the melted chocolate.
Coarsely chop the Andes Mints, then melt in a a glass bowl in the microwave at half power, stirring every 30 seconds till smooth. Pour over the top of the Oreo crumbs.