Year Price Per Gallon (Adjusted for Inflation)
1950 $1.91
1955 $1.85
1960 $1.79
1965 $1.68
1970 $1.59
1975 $1.80
1980 $2.59
1985 $1.90
1990 $1.51
1995 $1.28
2001 $1.66
2002 $1.31
2003 $1.52
2004 $1.79
2005 $2.28
2006 $3.03
2007 (so far) $3.26
http://www.howstuffworks.com/gas-price.htm
I don't know...I think you might be a tad high on your forecast.