Heat oven to 350°F. Great muffin pans or use cupcake liners.
In a medium mixing bowl, lightly beat the sugar, oil, and eggs together. Add pumpkin and water and stir.
In a large, separate bowl, mix the flour, soda, baking powder, spices and salt.
Add the wet mixture to the dry ingredients just until combined. Gently stir in the chocolate chips. As with most muffin batters, don't over-mix or the muffins will be tough.
Fill muffin cups ⅔ full. Lightly spray tops of muffins with cooking spray - this gives the muffins a lightly crispy top. (A little restaurant trick my sister Kalli taught me.) Bake 20-25 minutes. Cool for 5 minutes before removing from pans to wire racks.