The US average in 1984 was $1.16 per gallon. That would be about $2.62 per gallon in today's dollars (2014).
In 1982, the average price per gallon of regular unleaded gas was $1.30
In 1984, the US national average price of a gallon of regular unleaded gasoline was $1.21 - equivalent to about $2.54 per gallon in 2010. The US national average retail gasoline price that year was $1.16 per gallon.
the average price per gallon of gas in 1988 was $1.08
the average gas price for a gallon was $1.85 in the year of 1994.
The average price for a gallon of regular gasoline in 1979 was: $.90 cents.
The average price of gas in 1968 was $0.34/gallon in the US.
The average price of gas in 1995 was $1.16 per gallon.
In 1995 the average price of gas per gallon was $1.11. Oil was an average of $16.75 per barrel for the year.
In 2005, the average price per gallon of regular unleaded gas was $2.30
In 1997, the average price per gallon of regular unleaded gas was $1.23
The average price of a gallon of regular unleaded gasoline in 2007 was $2.80
The average price of a gallon of regular unleaded gasoline in 1999 was $1.17