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Oil Prices Retreat From Week Highs as WTI Falls to $100.30 and Brent to $103.87 on September 18 Amid Pipeline Restart Speculation

Sources: CNBC (September 18), Trading Economics (September 18), Fortune (September 18), U.S. EIA September 2026 Short-Term Energy Outlook, Al Jazeera (September 17), Anadolu Agency/Bloomberg (September 15). Price data verified across multiple commodity tracking platforms.

Oil prices declined on September 18, with WTI closing at $100.30 per barrel and Brent at $103.87, down 1.6 percent and 0.9 percent respectively, according to CNBC and Trading Economics data. The pullback followed three consecutive sessions of decline as the market anticipated the closure of Saudi Arabia's East-West pipeline would not have as big an impact on supplies as originally feared. Oil prices had gained more than 5 percent since the September 11 shutdown of the pipeline but retreated as Saudi Arabia signaled it could restore around half of the pipeline's 7 million barrel-per-day capacity within days and resume full operations within six weeks. The retreat reflects market speculation on higher near-term supply from the Middle East. Saudi Arabia offered additional cargoes through ship-to-ship transfers near Oman, and some analysts expect the pipeline to restart within a couple of weeks at reduced 40-60 percent capacity. Crude oil eased toward the $100 threshold from a four-month high of $106 earlier in the week as these supply signals began to circulate. Trading Economics reported that WTI fell to $100.30 on September 18, while Fortune noted that Brent was priced at $104.33 per barrel at 8 a.m. Eastern Time that same day, showing intraday volatility. Global oil inventories have already fallen by around 1 billion barrels, leaving the market with less room to absorb further disruptions from the ongoing Middle East conflict. The U.S. Energy Information Administration's September Short-Term Energy Outlook forecast Brent to average around $90 per barrel in the second half of 2026, expecting inventories to continue falling through year-end. Analysts warn that prices are unlikely to fall significantly below $100 per barrel if the pipeline remains offline beyond the estimated five-to-seven-day inventory cushion, with traders increasingly pricing in significant regional supply loss despite Saudi efforts to reroute crude through the Strait of Hormuz.