U.S. crude oil prices fell on Friday, with the West Texas Intermediate (WTI) October contract dropping 2.5% to $99.86 per barrel after hovering above $100. The Brent crude November contract fell 3% to $104.48 per barrel. Meanwhile, retail diesel prices hit a new record, surpassing $6 per gallon for the first time. The decline in oil prices was mainly influenced by reports of planned diplomatic talks among Gulf nations.