Petroleum (L. petroleum, frae Greek: πέτρα (rock) + Laitin: oleum (ile)[1][2][3]) is a naiturally occurrin, yellae-tae-black liquid foond in geologic formations beneath the Yird's surface, which is commonly refined intae sindry types o fuels. It consists o hydrocarbons o sindry molecular wichts an ither liquid organic compoonds.[4]

Proven warld ile reserves, 2009

References

eedit
  1. "Petroleum". Concise Oxford English Dictionary
  2. The Laitin wird petra is a loanword frae Greek πέτρα.
  3. "Gasoline as Fuel – History of Word Gasoline – Gasoline and Petroleum Origins". Alternativefuels.about.com. 12 Julie 2013. Archived frae the original on 26 September 2008. Retrieved 27 August 2013.
  4. EIA Energy Kids - Oil (petroleum). Eia.gov. Retrieved on 2013-11-26.