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

Crude oil was formed from the remains of tiny sea animals and plants and is therefore a fossil fuel. Small marine animals and plants that died millions of years  ...

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=Formation+of+Crude+Oil&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.livescience.com/33087-how-oil-form-petroleum.html

Mar 2, 2011 ... "Molecules in oil have the same backbone structures that we find in living organisms ." ... collectively forming sedimentary drifts of decaying organic matter. ... That contains the precursors we find in crude oil," said Peters.

www.petroleum.co.uk/formation

The formation of petroleum or crude oil happens over millions of years and during ... Petroleum formation occurs by various hydrocarbons combining with certain ...

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 ...