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  1. Learn How Oil is Formed. Crude oil, or petroleum, is formed through a natural processes called diagenesis and catagenesis that take millions of years. As ancient plants, bacteria, algae, and other small animals and organisms (or diatoms) that lived in the oceans millions and millions of years ago died, they settled down on the ocean floor.

  2. en.wikipedia.org › wiki › PetroleumPetroleum - Wikipedia

    The petroleum industry generally classifies crude oil by the geographic location it is produced in (e.g., West Texas Intermediate, Brent, or Oman), its API gravity (an oil industry measure of density), and its sulfur content.

  3. en.wikipedia.org › wiki › OilOil - Wikipedia

    An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) and lipophilic (mixes with other oils). Oils are usually flammable and surface active. Most oils are unsaturated lipids that are liquid at room temperature.

  4. The formation of oil begins in warm, shallow oceans that were present on the Earth millions of years ago. In these oceans, extremely small dead organic matter - classified as plankton - falls to the floor of the ocean.

  5. Crude oil, liquid petroleum that is found accumulated in various porous rock formations in Earth’s crust and is extracted for burning as fuel or for processing into chemical products. Crude oil is a mixture of varying hydrocarbons and other chemicals, and its physical properties vary widely.

  6. 5 dni temu · petroleum, complex mixture of hydrocarbons that occur in Earth in liquid, gaseous, or solid form. A natural resource, petroleum is most often conceived of in its liquid form, commonly called crude oil, but, as a technical term, petroleum also refers to natural gas and the viscous or solid form known as bitumen, which is found in tar sands.

  7. 17 paź 2024 · oil, any greasy substance that is liquid at room temperature and insoluble in water. There are many types, such as essential oil; orris oil; mineral oil (see petroleum); whale oil; pine oil; linseed oil; perilla oil; fish oil; tall oil; citronella oil.

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