The price of 12kg gas cylinders, used mainly by households, has been raised to €18 from €17.10 but fixed till the end of the year.
The Energy Ministry said gas prices will, on average, be €1.95 cheaper than at the same time of 2012 and 30c cheaper than last year.
The ministry said its policy of price stability stemmed from how it worked with the private sector. It thanked supplier Liquigas for cooperating.