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Petroleum - Wikipedia

en.wikipedia.org/wiki/Petroleum

Petroleum is a naturally occurring, yellow-to-black liquid found in geological formations beneath the Earth's surface, which is commonly refined into various ...

Petroleum | Information on Petroleum and Crude Oil

www.petroleum.co.uk/

Petroleum or crude oil is a fossil fuel. Find out how petroleum was formed and a history of its development into the oil products we see today.

Petroleum & Other Liquids - U.S. Energy Information Administration ...

www.eia.gov/petroleum/

Low tanker rates are enabling long-distance crude oil and petroleum product trade ... Growth in propane exports drove U.S. petroleum product export growth in  ...

What is the difference between crude oil, petroleum products, and ...

www.eia.gov/tools/faqs/faq.cfm?id=40&t=6

Petroleum products are produced from the processing of crude oil and other liquids at petroleum refineries, from the extraction of liquid hydrocarbons at natural ...

What Is Petroleum? - American Association of Petroleum Geologists

www.aapg.org/about/petroleum-geology/petroleum-through-time/what-is-petroleum

There are some places on earth where oil is not trapped underground, but actually seeps out at the earth's surface—Think Jed Clampett and a "bubbling crude!

petroleum | Britannica.com

www.britannica.com/science/petroleum

Jul 18, 2012 ... Petroleum, complex mixture of hydrocarbons that occur in the Earth in liquid, gaseous, or solid forms. The term is often restricted to the liquid ...

petroleum: Introduction - Infoplease

www.infoplease.com/encyclopedia/science/petroleum.html

petroleum, oily, flammable liquid that occurs naturally in deposits, usually beneath the surface of the earth; it is also called crude oil. It consists principally of a ...

Petroleum - Oil and Natural Gas | energy4me

energy4me.org/all-about-energy/what-is-energy/energy-sources/petroleum/

Oil and natural gas together make petroleum. Petroleum, which is Latin for “rock oil,” is a fossil fuel, meaning it was made naturally from decaying prehistoric ...

Petroleum | Define Petroleum at Dictionary.com

www.dictionary.com/browse/petroleum

Petroleum definition, an oily, thick, flammable, usually dark-colored liquid that is a form of bitumen or a mixture of various hydrocarbons, occurring naturally in ...

Petroleum Economist

petroleum-economist.com/

Publishing an energy and power journal, a portfolio of global and regional maps, and a series of books and reports. Residential and in-house training courses.

Answers
Petroleum, or crude oil, is a smelly, yellow-to-black liquid and is usually found in underground areas called reservoirs.
Oil was formed from the remains of animals and plants (diatoms) that lived millions of years ago in a marine (water) environment before the dinosaurs.