Petrol and diesel prices in Northern Ireland

Average prices in Northern Ireland

Most of the prices behind these averages are more than 3 days old.

From 484 forecourts with a usable price in our price data, updated 3:17am on 2 November UK time.

Cheapest forecourts in Northern Ireland now

Each forecourt's latest price from our price data. A price far from the UK median is left out, and older prices show their age.

Towns in Northern Ireland

The cheapest town for petrol in Northern Ireland is Omagh, at 161.3p. The dearest is Downpatrick, at 165.3p.

Each town covers the forecourts within its page's radius, so towns close together share some. A town needs 5 petrol prices to be listed. Town figures from 2:03am on 2 November.

Supermarkets against the major brands

Supermarket petrol averages 162.3p over 33 forecourts in Northern Ireland, 2.2p cheaper than the major brands' 164.5p over 222.

Supermarket diesel averages 188.3p over 32 forecourts in Northern Ireland, 2.6p cheaper than the major brands' 190.9p over 227.

Most of the prices behind these averages are more than 3 days old.

Compare every brand ·Supermarket fuel against the big brands

Diesel against petrol

Diesel costs 26.7p a litre more than petrol in Northern Ireland. That is about the same gap as the UK's 26.7p.

Why is diesel more expensive than petrol?

In the monthly report

In September 2026, Northern Ireland was the cheapest of the 12 UK regions for petrol, averaging 163.8p. For diesel it was the cheapest, at 187.2p.

Read the September 2026 report

Prices in every UK region

Questions about fuel prices in Northern Ireland

What is the average price of petrol in Northern Ireland?

Petrol (E10) averages 164.2p a litre in Northern Ireland, and diesel (B7) 190.9p, from 484 forecourts with a usable price.

Is fuel cheaper in Northern Ireland than the rest of the UK?

Petrol here is 7.5p cheaper than the UK average of 171.7p, the cheapest of the 12 UK regions. Diesel is 7.5p cheaper than the UK average of 198.4p, the cheapest of the 12 UK regions.

Where is the cheapest petrol in Northern Ireland?

The cheapest petrol we list in Northern Ireland is 155.9p a litre at Lurgan Filling Station in Craigavon. The cheapest town on average is Omagh, at 161.3p.

Is supermarket fuel cheaper in Northern Ireland?

Supermarket petrol averages 162.3p over 33 forecourts in Northern Ireland, 2.2p cheaper than the major brands' 164.5p over 222.

How these figures work

A forecourt counts in Northern Ireland by the postcode area it is in.

Postcode area: BT.

Each average uses every forecourt's latest price for the fuel while it is under 30 days old.

A price far from the UK median is counted but left out of the average, and a figure needs at least 5 prices.

Supermarkets and major brands are the groups on our brands page, each brand's own forecourts only. Motorway services are left out of both.

Town figures are worked out each night over each town page's radius.

A town in a London borough is listed in London. Any other town is listed by its postcode and county.

Prices more than 3 days old still count, and we say so when most of a figure rests on them.

Every figure here comes from our price data, which explains where the prices come from.