Oil prices remained volatile but below $100 a barrel as weaker demand offset severe supply disruption tied to the U.S.-Iran conflict over the Strait of Hormuz. On Aug. 13, Brent for October delivery fell 2.15% to $87.07 and WTI for September delivery dropped 2.43% to $81.25 after the International Energy Agency said 2024 global oil supply would shrink by 4.3 million barrels a day while demand would fall by 1.6 million barrels a day because of high prices. Prices later rebounded toward $88 as talks over the waterway remained deadlocked. Iran said the strait would stay blocked until the United States accepts its conditions, while vessel-tracking data from Kpler showed only two vessels crossed on Friday and no crude shipments were detected. U.S. gasoline prices were reported up 29% from a year earlier.