God gave us a great, practical energy source, oil. Many are simply too ingrateful to appreciate this.
God also gave us the sun, corn, radioactive elements, rivers, wind, swamp gas, what's your point! Do you believe using only oil is the smartest way? Use the brain God gave you and you will realize that if we unscrupulously use only nonrenewable forms of energy that are easy to tap, soon future generations of our ever expanding population will have less resources than we do to work with. There is no way to prevent it, but we can reduce our use and hope that with improved technology they'll have a better standard of living even with reduced resources.