There is plenty of crude oil and natural gas in the US through horizontal drilling and fracking. The U.S. will become the world's biggest producer and exporter of crude oil and natural gas within this decade. Both oil and gas are in the picture. It is not either crude oil or natural gas. Natural gas has a deep market for power generation. Crude oil has a deep market for gasoline and diesel fuel and petrochemicals. Now that energy explorers are switching to crude oil in US from natural gas, it will be interesting to see if they drive down West Texas Intermediate price of crude like they did natural gas with increased production and supply. That may discourage building the infrastructure to use natural gas to power autos and trucks.