There is only sufficient oil to last 44 years if oil production stays constant until it is used up. As oil reserves become depleted, there will be less which will make keeping production constant impossible. Likewise, there is only enough coal to last 133 years and only enough natural gas to last 61 more years. Certainly by now, everyone realizes that gas and oil will become expensive and scarce within the lifetimes of our children or their children. There will inevitably be a transition to more renewable energy sources. That transition may be haphazard or planned — it is on us to decide. 66.3 percent of the world’s gas reserves are in the Middle East and the Russian Federation. The United States have 3.4 percent. On the other hand, The United States consume 25 percent of the world’s oil and 70 percent of that is imported.