Excise clearances of green diesel (marked gas oil) were up 1% in May 2025 at 105 million litres, compared to May 2024.

That's according to the latest data from the Central Statistics Office (CSO). Clearances are the duty paid on the quantity of oil removed from bonded warehouses and provide a proxy for sales but do not reflect actual consumption.

The data also shows that excise clearances of kerosene in May 2025, at  26 million litres, were down 24% compared with the May 2024 figure of 34 million litres.

This was the lowest volume of kerosene clearances recorded for the month of May since the time series began in 2000.

Excise clearances of autodiesel in May 2025, at 305 million litres, were 3% lower than the May 2024 figure of 315 million litres.

This was the lowest volume of autodiesel clearances recorded for the month of May since 2021.

Excise clearances of unleaded petrol in May 2025, at 101 million litres, were 5% higher than the May 2024 figure of 96 million litres.

This was the highest volume of unleaded petrol clearances recorded for the month of May since 2018.

Wholesale prices of autodiesel and unleaded petrol in May 2025 were lower than May 2024.

Commenting on the release, statistician in the Climate and Energy Division at CSO Ireland, Deirdre Moran said: "Autodiesel clearances fell by 4% in the first five months of 2025 compared with the same period in 2024.

"They were 3% lower when comparing the 12-month rolling period of June 2024 - May 2025 with June 2023 - May 2024.

"Marked gas oil [green diesel] clearances were 4% higher in the first five months of 2025 compared with the same period in 2024.  Marked Gas Oil is primarily used for off-road purposes such as agriculture and the heating of larger buildings," she added.

The CSO has explained that April 2025 had the highest April monthly mean air temperature recorded at Dublin Airport since 2011.

It added that this exceptionally warm April may have contributed to the lowest volume of kerosene clearances recorded for the month of May since the time series began in 2000. Kerosene is mainly used as a home heating fuel.

"Kerosene clearances fell by 13% in the first five months of 2025 compared with the same period in 2024," Moran added.