[katana]

There are outer planet moons with lakes of cold liquid methane, and the universe seems to be awash in hydrocarbons. On the left below is such a lake on Titan. Right is size comparison with Lake Superior. Living things on this planet are made up of, not the original sources of, organic compounds. Why people continue to believe that fossil fuels are made of "fossils" is a puzzle. Dr. Thomas Gold nailed it years ago.

[eclecticEel]

There are outer planet moons with lakes of cold liquid methane

Titan has no free oxygen in its atmosphere, which is why those methane lakes can continue to exist indefinitely. On Earth anything of the sort would have long since oxidized away.