Why Oil Prices Shot Up and Eased Off This Week
Oil prices fell about 1% on Thursday, September 17, 2026, but stayed above $100 a barrel. That capped four jumpy days driven by worries about Middle East pipelines and shipping, not by demand or stored oil. Reuters
Prices had hit four-month highs after Saudi Arabia shut its East-West Pipeline and threats to ships in the Red Sea grew. Traders had priced in a long stop to Saudi oil moving west. By Thursday, that fear premium was fading on hopes the disruption could be contained. The Wall Street Journal
The rise was quick. Prices closed about 1% higher on Monday, September 14, after new strikes raised supply fears. That added to a sharp jump the day before. Reuters
Then prices closed $3 higher on Tuesday, September 15, after shipping industry sources reported on crude loadings at Yanbu, Saudi Arabia's export port on the Red Sea. Yanbu loadings show whether pipeline oil is still reaching tankers. Any delay there hits near-term futures, which are contracts for oil delivery soon, and price gaps for physical cargoes. Reuters
The pipeline matters because it is large. Saudi Arabia said drones fired from Iraq damaged it and forced a shutdown. It can carry up to 7 million barrels a day from eastern fields to Yanbu. Think of it as a detour road that lets Saudi oil skip the Strait of Hormuz, a narrow water lane for Gulf oil. The Wall Street Journal That detour role is why one pipeline closure shook the whole market. Bloomberg
At the worst point, the outage threatened 4% of world oil supply, according to Reuters reporting. Saudi Arabia had oil stored at ports to keep exports going for 5 to 7 days, according to sources cited in the same report. Like food kept in a pantry, that stored oil sets a clock. A fix in days can be covered. A fix in weeks would mean delayed cargoes, rerouted tankers and use of stored oil elsewhere. Reuters
By September 16, Saudi Arabia was working to reopen the pipeline. Prices moved up and down that day. Some problems were easing, but war-related tightness stayed. Prices fell on the reopening news, then rose again on leftover risk to Red Sea and Hormuz shipping. Bloomberg
Aramco had said in its second-quarter and half-year 2026 results that it kept using the East-West Pipeline to keep oil flowing. That is now the starting point for checking damage. Traders will compare that earlier use with volumes when it restarts. They will watch for lower capacity, split operations or temporary limits. Aramco
The broader context here is simple. The bypass does not remove risk from Hormuz. It splits it. Some oil can still leave through the Gulf, while some goes west through Yanbu. When the detour itself breaks while danger around Hormuz and the Red Sea is rising, there is no backup. That explains the fast spike and the fast fall once repairs started.
In my view, watch $100, not the daily 1% move. A 1% dip still leaves most of the war fear in the price. The 5-to-7-day port supply is why. Buyers can wait out a short break. After that, refinery orders, loading plans and ship bookings start to slip. The $3 jump on September 15 looked ahead to that deadline. The dip on September 16 and 17 showed hope the deadline will hold.
What to watch next is two things. First, how fast drone damage to pumps and pipes can be checked and fixed. Second, whether Yanbu loadings get back to normal without ship backlogs or port limits on water depth and loading spots. An announcement alone does not prove it. The order is announcement, then oil flowing again, then normal loadings and clearances. Until then, supply can stay tight even if headline prices ease.
