
A motoring journalists expects prices to get much higher.
Stock markets around the world have tumbled as Russia announced military action in eastern Ukraine.
The FTSE 100 plunged more than 2.5% on opening.
Moscow's main indices are down as much as 45% - while the rouble's fallen to an all-time low against the dollar and the euro.
The oil price has surged - with Brent crude costing more than $100 a barrel for the first time since 2014.
Portlaoise Motoring Journalist, Bob Flavin, expects prices to get much higher: