Projected Price of Oil (WTI crude, DOE/EIA online)
Price 
Date per bl Relative
1986 15.05
1987 19.20
1988 15.97
1989 19.64
1990 24.53
1991 21.54
1992 20.58
1993 18.43
1994 17.20
1995 18.43
1996 22.12
1997 20.61
1998 14.42
1999 19.34
2000 30.38 1.00
2001 25.98 0.86
2002 26.18 0.86
2003 31.08 1.02
2004 41.51 1.37
2005 56.64 1.86
2006 66.05 2.17
2007 72.34 2.38   Notes:
2008 99.67 3.28   1. See more at: Fossil Fuel Reserves.htm
2009 61.95 2.04   2. Before 2050, oil will be more expensive than alternatives.
2010 79.48 2.62   3. In 2006, residential electricity from fossil fuel power plants cost about 8.9 cents
2011 94.88 3.12         per KWH while photovoltaic solar cost about 38 cents per KWH. On this basis, 
2012 94.05 3.10         elecricity will probably cost about (38/8.9) = 4.27 times what it cost in 2006. Hence,
2013 95.99 3.16         the factor of 3 to 5 used to estimate the change anticipated in the cost of energy.
2014 87.39 2.88   4. Also see: Oil reserves and production data from:
2015 44.39 1.46 Fossil Fuel Reserves.htm US_Energy_Plan.htm World_Energy_Plan.htm
2016 41.02 1.35   5. Methane hydrates stored in cold sediments and cold water in the deep ocean are
        potential sources of energy, but are also greenhouse gasses which could trap heat.
  6. Human population reductions to 3-4 billion would solve most problems.