Naturally occurring methane is found both below ground and under the seafloor and is formed by both geological and biological processes. How do you make it pay ? LOL
"About 30% of methane emissions are produced by wetlands, including ponds, lakes and rivers.
Another 20% is produced by agriculture, due to a combination of livestock, waste management and rice cultivation.
Activities related to oil, gas, and coal extraction release an additional 30%.
The remainder of methane emissions come from minor sources ..."
News Source:
https://svs.gsfc.nasa.gov/4799