Man can create 'synthetic' oil, we can also grow crops to make 'vegetable' oil.
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Petrol is somewhat man made. Oil is a natural resource but it must be refined in order to make gas or petrol from it.
Man-made is anything created by humans; artificial. Often distinguished from "natural."
1- high maintenance cost 2- oil leaking 3- high construction cost (tanks-gauges- man-hauls- piping)
Many man-made products are derived from oil, including plastics, synthetic fibers, and various chemicals. Common items like plastic bottles, containers, and clothing made from polyester are all produced using petroleum. Additionally, many fuels, such as gasoline and diesel, are also processed from oil, showcasing its versatility in modern manufacturing and daily life.
Only synthetic oil is man-made.
What a Man My Man Is was created in 1974-10.
Oil Barons was created in 1983.
Duke of Oil was created in 1986.
Marathon Oil was created in 1887.
Schaeffer Oil was created in 1839.
Skelly Oil was created in 1919.
Maersk Oil was created in 1962.
Irving Oil was created in 1924.
Enterprise Oil was created in 1983.
Burmah Oil was created in 1886.
Oil's Well was created in 1983.