Preheat oven to 350°F.
Whisk together the oil, sugar, honey, molasses, eggs, pumpkin, milk, vanilla extract, and salt.
Add the flour, baking powder, baking soda, nutmeg, and chocolate chips (if desired) and gently fold until just combined.
Spoon into a greased loaf pan.
Bake at 350°F (176° C) for 1 hour or until a cake tester comes out clean.
Cool before slicing, and serve with butter if desired.