Depends where you are ! Here in the UK - the average price is around 5.00 GBP (or 6.54 USD) per gallon
The average cost of a gallon of milk in 2003 was $3.19. In 2012, the average cost of a gallon of milk was $3.53.
The average cost of a gallon of gas is $3.65.
The average cost of a gallon milk in 1964 was $0.93.
1.97
the average cost was a outstanding 1.19
The average cost for a gallon or regular gasoline in 2009 was: $2.80.
On average it was $.20 a gallon
The Energy Department estimates the average cost per gallon of gasoline to be $2.84 in 2010.
The average price of gas in 1995 was $1.16 per gallon.
The average cost of a 1000 gallon concrete septic tank is around 1,500 to 2,500.
The average cost of installing a 5000 gallon septic tank is around 5,000 to 7,000.