We really do not know because it is in the ground.
Scientissts predict that it will last 155 years.
Until the alien comes and destroy us, fossil fuel will last forever
Depends on how its used. If breeder reactors are used to convert the nonfissionable Uranium-238 to fissionable transuranics, it will last more than 100 times as long as it will if they are not used.
It was predicted that our coal resources will last for around 250 years more. I am reluctant to agree with this statement though. Our oil reserves are expected to run out within the next 50 years if technology does not advance enough to give us alternatives. When this happens, our coal consumption will rise and exhaust the reserves much sooner than predicted.
by year 2050 all the existig wells will be out of oil and if there will be some new wells, that will also not last more than a decade or two.
Coal reserves can last for up to 300 years
Coal can last for quite a long time when used in large amounts.
Because there is a lot of it
Scientists believe the world's coal supply will last for another 200 to 250 years.
Coal mining will not last for long because coal is becoming scarce.
another 5 years
about 300 years
coal sense it is nonrenewable energy it will basically run out in 30 or 40 years
well how long is a piece of string
Scientissts predict that it will last 155 years.
50 years maxumim
Plumbing Supplies do not go bad, they last a long time with the proper care and cleaning.