The Iseq was down in lunchtime trading today despite business support services company DCC bucking the trend.
The Iseq slipped 68.65 to 5,093.12 at 12.30pm today.
Bank of Ireland was down 16 to €9.84 while AIB fell 22 to 11.78.
Building material group CRH is down 35 at 17.2.
Meanwhile DCC has climbed 20 to 12.6 after reporting pre-tax profits of €116m for the year to end-March.
This is up 6% on the 2003 figure.
Earnings per share grew by 15%, with operating profit for continuing activities up 9% at €120.9m, but sales were down 2% to €2.2bn.
In London surging oil prices and concerns over the situation in Iraq sent shares sharply lower by lunchtime.
The FTSE 100 Index retreated 60.5 points to 4381.3 in the wake of the assassination of the head of Iraq’s governing council and four small bomb blasts in Turkey.
The impact of recent oil price hikes on corporate profits was brought into focus today by British Airways, which warned higher fuel prices would cost it an extra £150m (€220m) this year.