Preheat oven to 350 degrees F (175 degrees C). Grease and flour three 7 x 3 inch loaf pans.
Mix oil, sugar, and eggs together in a large bowl. Mix in pumpkin puree and water. Stir together flour, soda, baking powder, salt, and spices. Add to the pumpkin mixture, and mix until just combined. Stir in nuts and raisins. Divide batter into prepared pans.