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Petroleum

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.

What Is Petroleum? - AAPG Home

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

www.eia.gov/petroleum/

Petroleum & Other Liquids ... U.S. petroleum product exports continue to increase ... Iran's petroleum production expected to increase as sanctions are lifted.

Oil: Crude and Petroleum Products - Energy Explained, Your Guide ...

www.eia.gov/energyexplained/index.cfm?page=oil_home

Petroleum products are fuels made from crude oil and other hydrocarbons contained in natural gas. Petroleum products can also be made from coal, natural gas ...

Petroleum Economist

www.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.

petroleum | Britannica.com

www.britannica.com/science/petroleum

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

API

www.api.org/

The American Petroleum Institute (API) is the only national trade association that represents all aspects of America's oil and natural gas industry. Our more than ...

Petroleum - College of Earth and Mineral Sciences

www.ems.psu.edu/~pisupati/ACSOutreach/Petroleum_2.html

The formation of petroleum. Text Box: Modified from Tissot and Welte, 1984. Petroleum formation and occurrence, Step 1: Diagenesis forms Kerogen.

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.