Petroleum is a naturally occurring yellowish-black liquid mixture. It consists mainly of hydrocarbons, and is found in geological formations. Petroleum product · Petroleum industry · Petroleum geology · Petroleum politics

Petroleum is a complex mixture of hydrocarbons that occur on Earth in liquid, gaseous, or solid form. The term is often restricted to the liquid form, commonly ... From kerogen to petroleum · Major oil-producing countries · World distribution of oil

Petroleum, or crude oil, is a fossil fuel and nonrenewable source of energy.

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

Petroleum, also called crude oil, is a naturally occurring liquid found beneath the earth's surface that can be refined into fuel. What Is Petroleum? · Understanding Petroleum

Petroleum is a naturally occurring, flammable liquid found within rock formations in the earth, and is comprised of a mixture of hydrocarbons and other organic ...

Petroleum is a complex mixture of hydrocarbons that exist naturally in gaseous (natural gas), liquid (crude oil), and solid (asphalt) states.

Petroleum, which is Latin for rock oil, is a fossil fuel made naturally from decaying prehistoric plant and animal remains. It is a mixture of hundreds of ...

Petroleum is a naturally occurring fossil fuel found in geological formations beneath the Earth's surface.

Petroleum is a broad category that includes both crude oil and petroleum products. The terms oil and petroleum are sometimes used interchangeably. Last reviewed ...