This text suggests some sort of "rip-off" but the numbers support nothing of the sort.

Crude makes up 25% of the price of a litre of motor fuel. Crude down 50% would mean a 12.5% price drop (25% x 50%).

How much does the piece say fuel is down? 12%. Just what it should have. https://twitter.com/CWeston_Indo/status/1250381895235502080

Of course, the remarkable story here isn't an @aaroadwatch survey showing petrol at €1.27 from €1.45 in Jan.

The remarkable thing is that at €1.27, the pre-tax price is 40 cent a litre.

You'd hardly get bottled water for that (& some suppliers literally get it from the tap).

If the pre-tax price of petrol was zero we would still pay 77c a litre.

That is 62.8c of per-unit taxes (Excise Duty, Carbon Tax, NORA Levy) + 14.4c of VAT on those taxes.

Nearest forecourt is 124.9 for petrol. That gives a pre-tax price of 39c + 9c VAT on that + the above 77c.

And just to set out what the per unit taxes on a litre of petrol actually are:

Excise Duty: 54.18c
Carbon Tax: 5.98c
National Oil Reserve Levy: 2.00c
Better Energy Levy: 0.12c

These are invariant to the price of crude, and price at the pump has VAT @23% added on them to boot.