What are natural gases really made of???(don't tell me fossil fuels or dinosaur bones.)

Natural gas is predominately methane gas that is generated by the bacteria that is in decaying organic materials
When you let off gas from your rear , that is methane gas , generated by a bacteria in the bowel
when you pass a sewerage plant , the gas that you smell is methane gas generated by the bacteria in the collected waste
at a waste tip the gas collected from under the piles of covered rubbish is methane gas from the bacteria operating in the refuse material
Methane in pure form is odourless and needs other additives to make it smell
If you read mining history, early miners used a canary to detect methane gas in the coal mines because they could not smell it but the bird being small died instantly giving the miners a chance to get out

Two sources . biogenic and thermogenic.
Biogenic - Biogenic gas is created by methanogenic organisms in marshes, bogs, landfills, and shallow sediments.
Deeper in the earth, at greater temperature and pressure, thermogenic gas is created from buried organic material.
https://en.wikipedia.org/wiki/Natural_gas

Landfills - create natural gas also in the form of methane from decomposing organic material
Cows manure and their burps create methane
Pigs manure create methane
Human manure can create methane
https://www.theguardian.com/business/2010/oct/05/human-waste-turned-renewable-gas