Preheat oven to 435 deg F (218 deg C) and line a 6 count muffin pan with liners. Set aside.
In a medium mixing bowl, pour in oil, pumpkin puree, both sugars, vanilla, egg and milk together. Whisk them all to combine.
Now sift flour, baking soda, salt and spices over wet ingredients. Fold in to form muffin batter. Do not over mix, Just fold in till no flour pockets are visible.
Fold in chocolate chips next. Spoon and divide the batter in 6 prepared liners.
Bake for 5 minutes and then keeping the muffins in oven, reduce the oven temp to 350 deg F (177 deg C). And continue to bake for an additional 15-17 minutes. Or till the muffins pass toothpick test.
Total time for these pumpkin muffins is around 20-22 minutes. Allow the muffins to cool in the muffin pan for 5 minutes. Now is the time to top your muffins with a few more choc chips for looks (and more chocolate!!!). Cool these further down on a wire rack.