Energy prices in Ireland fell by 4.3% between April and May according to a flash estimate of inflation published by the Central Statistics Office.
However, the figures - from the EU Harmonised Index of Consumer Prices (HICP) for Ireland - also show energy prices for May were 11.9% than the same month last year.
Overall, the HICP estimates consumer prices here fell by 0.1% month-on-month in May, and increased by 3.5% in the year to May.
The figures also show food prices have fallen marginally (by 0.1%) in the past month.
All other sub-categories of the HICP saw a month-on-month increase in prices, with unprocessed food 0.5% dearer and processed food up 0.2%.
On an annual basis, processed food is 1.3% more expensive, while unprocessed food is up 2.5%.
A flash estimate for the wider eurozone will be published next week, while the CSO will publish final and more detailed consumer price data for Ireland on 11th June.
