I'm paying $0.76/liter USD = ***/liter AUD. The actual price is $2.959/gallon USD, but there are 3.87 liters to a gallon i think.
[edit: it's actually 1.03 AUD/liter]

That's at the least expensive place around: ARCO (Atlantic Richfield, a BP company). Unfortunately it is double what it cost a year or so ago. It is "regular", the lowest octane, which is 87 using the R+M/2 rating system. Hi-octane is about 10% more expensive.

USA: bottom line. Top lines are various European countries:



Maybe one reason it is relatively cheap in the USA is because we have large amounts of oil ourselves, and only import a portion ... and the government doesn't take much tax on it:
WA State Gasoline Taxes
Total (state + local taxes): 49.4 cents/gallon ( 9.7 cents/liter AUD)

How much is the petrol tax down under?

Of course there's always Venezuela, where the retail pump price was only 12cents/gallon last year.