Using an electric mixer, blend together the softened butter and oil. Add both sugars and mix well. Add the eggs, vanilla, pudding mix , baking soda, and salt and continue to mix until light and fluffy.
Using a wooden spoon, mix in the flour just until combined. Stir in the chocolate chips.
Bake the cookies in a 350 degree oven for about 12 minutes. Adjust the time to your personal preference.
I had a total of 48 cookies using my 1 1/2" cookie scoop.