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'''Gasoline''' or '''gas''' is a [[fuel]] derived from [[petroleum]], which is in turn derived from ancient [[vegetable]] matter and [[dinosaur]]s.  Gasoline is an aliphatic hydrocarbon, or the molecules are composed of nothing but hydrogen and carbon in long chains.  The energy contained in a gallon of gasoline is approximately 132X10⁶ joules of [[energy]], equivalent to 125,000 [[BTU]] or 36,650 [[watt-hours]]. <ref> US Department of Energy [http://cta.ornl.gov/data/appendix_b.shtml]</ref>  This high energy density allows for much of the modern industry and comforts of the modern world through the [[transportation]] of goods and people.  

'''Gasoline''' or '''gas''' is a [[fuel]] derived from [[petroleum]], which is found underground and has unknown origin.  Gasoline is an aliphatic hydrocarbon, or the molecules are composed of nothing but hydrogen and carbon in long chains.  The energy contained in a gallon of gasoline is approximately 132X10⁶ joules of [[energy]], equivalent to 125,000 [[BTU]] or 36,650 [[watt-hours]]. <ref> US Department of Energy [http://cta.ornl.gov/data/appendix_b.shtml]</ref>  This high energy density allows for much of the modern industry and comforts of the modern world through the [[transportation]] of goods and people.  

<br>Gasoline is refined from [[crude oil]] via [[distillation]].  Gasoline is sold at gas or fueling stations where it is pumped into [[vehicle]]s.  According to national figures from the U.S. Department of Energy, in May 2007, 46% of the cost of gasoline went to pay for crude oil, 28% for refining, 13% to taxes, and 13% for distribution and marketing<ref>Energy Information Administration [http://tonto.eia.doe.gov/oog/info/gdu/gasdiesel.asp]</ref>.  While Prices have risen to new highs, in [[inflation|inflationary]] terms, gas prices are still lower than during the [[1973 Energy Crisis]] or the [[1979 Energy Crisis]].  It is illegal to pump your own gas in [[Oregon]].

<br>Gasoline is refined from [[crude oil]] via [[distillation]].  Gasoline is sold at gas or fueling stations where it is pumped into [[vehicle]]s.  According to national figures from the U.S. Department of Energy, in May 2007, 46% of the cost of gasoline went to pay for crude oil, 28% for refining, 13% to taxes, and 13% for distribution and marketing<ref>Energy Information Administration [http://tonto.eia.doe.gov/oog/info/gdu/gasdiesel.asp]</ref>.  While Prices have risen to new highs, in [[inflation|inflationary]] terms, gas prices are still lower than during the [[1973 Energy Crisis]] or the [[1979 Energy Crisis]].  It is illegal to pump your own gas in [[Oregon]].