Yes, crude oil is a natural resource. A natural resource is (and I quote from the dictionary) materials or substances that occur in nature and can be used for economic gain. For example, the top 10 natural resources in the world are:
1. water
2. air
3. coal
4. oil
5. natural gas
6. phosphorus
7. other minerals
8. iron
9. soil
10. forests and timber
hope this helps!!!!!! (:
