How much gas is left in the world?
Isabella Bartlett
Updated on April 22, 2026
The world has
proven reserves
There is some disagreement on which country has the largest proven gas reserves. Sources that consider that Russia has by far the largest proven reserves include the US CIA (47600 cubic kilometers), the US Energy Information Administration (EIA) (49000 km³), and OPEC (48810 km3).
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Is the world running out of gas?
When will we run out of natural gas? Proven world gross reserves of natural sat at over 7 trillion cubic feet in 2018. Many estimates corroborate that the amount of natural gas we have left will last us anywhere from 40 to 52 years. Factors such as new reserves being discovered could change this though.How much gas do we still have?
According to U.S. Crude Oil and Natural Gas Proved Reserves, Year-end 2020, as of December 31, 2020, U.S. total natural gas proved reserves—estimated as wet gas (which includes hydrocarbon gas liquids [HGLs])—totaled about 473.3 trillion cubic feet (Tcf).How long will earth's fuel last?
Various studies show that the total remaining recoverable oil resources would last 190 years, natural gas 230 years, and coal, a whopping 2900 years. These numbers apply if current rates of production hold for centuries to come, which may not be the case.How long will gas last?
Pure Gasoline: Up to 6 MonthsPure gasoline that is petroleum-based without any ethanol will typically last up to six months before it begins to degrade from oxidation rapidly.