General view of the Fos-Lavera oil hub near Marseille, France, September 17. REUTERS/Jean-Paul Pelissier Brent and WTI head for weakest quarter since 2020 Exports ‘gradually’ resume after spill at Iraq’s Basra terminal Investors brace for large U.S. interest rate hike U.S. drillers add rigs, first time in 3 weeks -Baker Hughes NEW YORK, Sept 16 (Reuters) – Oil prices rose slightly on Friday as a spill at Iraq’s Basra terminal appeared likely to constrain crude supply, but remained down on the week on fears that hefty interest rate increases will curb global economic growth and demand for fuel. Brent crude futures settled at $91.35 a barrel, up 51 cents, while U.S. West Texas Intermediate (WTI) crude futures settled at $85.11 a barrel, up 1 cent. Both benchmarks were down by nearly 2% on the week, hurt partly by the U.S. dollar’s strong run, which makes oil more expensive for […]