Petroleum is a naturally occurring, yellow-to-black liquid found in geological
formations ..... Crude oil varies greatly in appearance depending on its
composition. It is usually black or dark brown...
Crude oil is a naturally occurring, unrefined petroleum product composed of
hydrocarbon deposits and other organic materials.
Crude oil is pumped from the ground in the Middle East (e.g., Saudi Arabian Arab
Light), West Africa (e.g., Nigerian Bonny Light), the Americas, and Asia ...
Definition of crude oil: Mixture of naturally occurring hydrocarbons that is refined
into diesel, gasoline, heating oil, jet fuel, kerosene, and literally thousands of ...
Nov 2, 2016 ... Crude oil is used to make fuel and other petroleum products. From the U.S.
National Library of Medicine. [ ]
Aug 14, 2013 ... Crude oil is far from being one homogenous substance. Its physical
characteristics differ depending on where in the world it's pulled out of the ...
Crude oil definition, petroleum as it comes from the ground, before refining. See
Crude Oil - Despite the dangers, oil refineries are essential to society in its
current form. Learn how crude oil is converted into everything from butane to
Crude oil (a non-renewable resource) is usually found in underground areas
called reservoirs. It is yellowish black in colour. This pages give information on ...
Oil, gas and gas condensate are among the most important energy sources in the
world. One thing we know for sure is that we need oil - currently around 90 ...