Line muffin tin with paper liners. Preheat oven to 400°F.
In a large bowl, combine oil, sugar, eggs, vanilla, and sour cream.
In a small bowl, combine flour, cocoa powder, baking soda, and salt.
Add half of the flour mixture to the sugar mixture and stir until combined. Stir in the milks and then add remaining half of flour mixture.
Stir in chocolate chips, saving a few to place on top of the muffins.
Gently press 3 raspberries and a couple chocolate chips on tops of muffins. Bake for 18 minutes or until a toothpick inserted in the center comes out clean.