Natural Gas is the most prolific fossil fuel in nature.
Including unconventional gas sources, such as coal bed methane, coal seam methane, shale gas, and hydrates, there is sufficient natural gas to run the world’s economies for the next thousand years. The figure displayed below shows the relationship between conventional and un-conventional gas resources, with a total of over 200,000 TCF of NG in the USA alone. Total worldwide reserves are hard to accurately estimate, but numbers are in Quadrillions of cubic feet of NG (QCF).
The fact that NG is so prolific in nature is very fortuitous, as most experts agree that, as shown in the figure below, the reliance upon hydrocarbon solids (such as coal) and hydrocarbon liquids (crude oil and its refined derivatives) will be on the decline in favor of hydrocarbon gas products. The world is now entering the “Gas Age”.