Natural Gas - Interesting Facts About Its Use Like oil, natural gas is a product of decomposed organic material. It is a byproduct of plants and animals that decomposed without the presence of oxygen. As they were covered with sediment they became trapped. That is why natural gas is called a fossil fuel.Natural gas is similar to oil, in many ways. The gas is often found mixed with oil or floating on top of underground pools of oil. The...... Similar Editorial : Clutter Is Natural by Stephanie Roberts. | Source : Technology In Business