Iran’s military attack against Israel over the weekend raised concerns about a potential regional conflict impacting global oil supply chains. Oil prices recorded a decline on Monday as traders reduced risk premiums after Iran’s action. Brent futures for June delivery slipped 50 cents or 0.5 per cent to $89.95 per barrel, while West Texas Intermediate (WTI) futures for May delivery were down 52 cents or 0.6 per cent at $85.14 per barrel by 0630 GMT.