Peel the orange and divide it into segments. Line a large plate with wax paper.
Place the chocolate in a small microwave-safe bowl and melt it in the microwave, in two or three 30-second sessions, stirring after each session.
Stir the oil and the sweetener into the melted chocolate.
Dip half of each orange section into the melted chocolate. Swirl to allow any excess chocolate to drip back into the bowl.
Place the dipped orange segments on the prepared plate. Refrigerate them until set, about 20 minutes.
*I add stevia because I use very dark chocolate. Depending on the chocolate you use, you may or may not need to add a sweetener.Melting chocolate in the microwave is quick and easy. You can also use a saucepan, but using the microwave is easier. Just make sure you do it in 2-3 sessions and stir after each session to avoid burning the chocolate.