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 ... The idea that petroleum is formed from dead organic matter is known ... objects formed from the same raw material as Earth, that crude oil might ...

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.

.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 we explore for them.

www.quora.com/How-is-crude-oil-formed

The origins of petroleum and mechanisms through which it was accumulated in large reservoirs has always been a controversial subject. It comes down to two ...

www.cuttingedge.org/News/n2268.cfm

What if crude oil is non-biological and the Earth creates new supplies constantly? ... carbon-13 isotopes that appeared to be formed from the mantle of the Earth, ...

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 ...

www.decodedscience.org/origin-crude-oil-petroleum-biotic-abiotic/54008

Apr 28, 2015 ... There are few more important substances to civilization than crude oil or petroleum. Was crude oil or petroleum formed via the biotic or the ...