Brent futures for August settlement were down 13 cents to $85.58 a barrel by 11:27 CAT, while US West Texas Intermediate crude futures for August delivery were down 10 cents to $81.19.
Prices have risen about 5% this month to their highest in more than seven weeks.
"The seasonal demand increase, as shown by the latest EIA data, renewed confrontation between Israel and Hezbollah, and the hurricane season could sustain price strength into the summer," Citi analysts said in a note.
US government data released on Thursday showed total product supplied, a proxy for the country's oil demand, rose by 1.9 million barrels per day (bpd) in the week ending June 14 to 21.1 million bpd.
--Reuters--