HOUSTON: Benchmark oil prices fell more than $3 on Wednesday to their lowest level since before the start of the Iran war as supply concerns eased with more stranded oil tankers exiting the Strait of Hormuz. US crude futures, meanwhile, slipped below $70 a barrel to their lowest since March 2. Brent crude futures, the global benchmark, were down $3.08, or 4.02 per cent, at $73.98 a barrel as of 1715 GMT, and US West Texas Intermediate was down $3.13, or 4.06%, to $73.95 a barrel.