Question: deep underground deposits of natural gas formed from

title: Natural gas
text: Natural gas is found in deep underground rock formations or associated with other hydrocarbon reservoirs in coal beds and as methane clathrates . Petroleum is another resource and fossil fuel found in close proximity to and with natural gas . Most natural gas was created over time by two mechanisms : biogenic and thermogenic . 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 . 

Answer: answer: Natural gas is found in deep underground rock formations or associated with other hydrocarbon reservoirs in coal beds and as methane clathrates. 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.