Web Results

en.wikipedia.org/wiki/Petroleum

Petroleum is a naturally occurring, yellow-to-black liquid found in geological formations ..... The exact molecular composition of crude oil varies widely from formation to formation but the proportion of chemical elements varies over fairly narrow ...

www.bbc.co.uk/bitesize/standard/chemistry/materialsfromoil/how_crude_oil_was_formed/revision/1

A BBC Bitesize secondary school revision resource for Standard Grade Chemistry on how crude oil was formed: fossil fuels, porous rock, non-porous rock.

oilprice.com/Energy/Crude-Oil/What-Is-Crude-Oil-A-Detailed-Explanation-On-This-Essential-Fossil-Fuel.html

Jul 24, 2009 ... Crude Oil Formation. Crude oil is created through the heating and compression of organic materials over a long period of time. Most of the oil ...

www.livescience.com/9404-mysterious-origin-supply-oil.html

Oct 10, 2005 ... But where does oil really come from, and how much is left? ... objects formed from the same raw material as Earth, that crude oil might exist on ...

www.livescience.com/33087-how-oil-form-petroleum.html

Mar 2, 2011 ... Almost all geochemists believe petroleum results from a few million years of decay ... seafloor, collectively forming sedimentary drifts of decaying organic matter. ... That contains the precursors we find in crude oil," said Peters.

www.croftsystems.net/oil-gas-blog/what-is-oil-made-of

Jul 5, 2017 ... We all know what crude oil looks like.... a black thick liquid substance. We all know it comes from the ground. It is cool to think that you can drill ...

www.passmyexams.co.uk/GCSE/chemistry/crude-oil-petroleum-formation.html

Some deposits were formed over 500 million years ago, with the newest deposit being approximately formed over 50 million years ago. Crude oil was formed ...

www.ask.com/youtube?q=Crude+Oil+Formed&v=8YHsxXEVB1M
Sep 5, 2014 ... A fast paced explanation of how many oil and gas deposits form and how ... the process of getting useful oil like petrol and diesel from crude oil, ...

www.nationalgeographic.org/encyclopedia/petroleum

Jan 15, 2013 ... Petroleum, or crude oil, is a fossil fuel and non-renewable source of energy. ... Coal, natural gas, and petroleum are all fossil fuels that formed ...