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.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.adventuresinenergy.org/What-are-Oil-and-Natural-Gas/How-Are-Oil-Natural-Gas-Formed.html

Stage 1 - All of the oil and gas we use today began as microscopic plants and animals living in the ocean millions of years ago. As these microscopic plants and ...

www.ask.com/youtube?q=Crude+Oil+Formed&v=BOy_j2blim8
May 26, 2016 ... Oil From Wikipedia, the free encyclopedia For other uses, see Oil ( disambiguation). A bottle of olive oil used in food This article contains special ...

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 ...