Global Oil Inventories 509 Million Barrels Below Prewar Levels
Key Facts
Observed global oil inventories at the end of September 2026 were about 509 million barrels below prewar levels, according to the International Energy Agency. The shortfall puts supplies at the forefront of oil market monitoring, as U.S.-Iranian negotiations continue with the aim of avoiding a resumption of military operations. The available facts did not make clear the course of the negotiations or their effect on oil flows in the session in question. The Associated Press said talks were continuing to avoid a resumption of U.S. operations against Iran. It also reported that Washington's allies in the region had pressed it not to resume the war.
The United States had carried out a strike that the Associated Press described as appearing limited, targeting Iranian sites in the Strait of Hormuz, before the U.S. midterm elections on Tuesday, 3 November. The strike raised questions about the next step, while negotiations continued to avoid a resumption of operations. U.S. Vice President JD Vance said on Monday that he and President Donald Trump felt positive about the prospects for a settlement. The agency quoted them as saying, "We both feel very optimistic about the prospects for a negotiated settlement." The diplomatic track's overlap with military tensions reflects the strait's importance in monitoring supply, without by itself establishing the cause of oil price movements in any particular session.
Iranian proposals include reopening the Strait of Hormuz and resuming talks on the nuclear program, in exchange for the United States lifting its naval blockade of Iranian ports, exempting oil sales from sanctions and agreeing to a ceasefire that includes Lebanon, according to the Associated Press. Tehran tied reopening the strait to meeting its conditions; Iranian National Security Council head Mohsen Rezaei said, according to the agency, that "the strait will not be reopened before the United States addresses Iran's conditions." The negotiations therefore center on conditions related to shipping, sanctions and the nuclear issue, as well as a ceasefire. These statements do not in themselves provide evidence that an agreement has been reached or that oil flows have changed.
On the supply side, the Associated Press reported that disruption to tanker traffic in the Strait of Hormuz had not halted Aramco's exports completely, as the company continued exporting in part via the East-West pipeline to Yanbu. The agency added that the pipeline resumed flows after being attacked on 10 September. According to the facts reported by the agency, these supplies provide a partial alternative route as concerns linked to the maritime passage persist. By contrast, the International Energy Agency's figure of 509 million barrels describes observed inventories at the end of September compared with prewar levels; it is not a measure of the change in inventories in the 4 November session. Monitoring supply volumes remains linked to developments in shipping and the negotiations.
The next U.S. Energy Information Administration weekly petroleum status report is scheduled for Thursday, 12 November 2026, at 12 noon Eastern Time, covering the week ended 6 November. The timing is an exception because of the Veterans Day holiday; the report is normally released on Wednesday at 10:30 a.m. Eastern Time. The published schedule gives the market a date for the next official data on U.S. supplies and inventories, while U.S.-Iranian talks and developments in the Strait of Hormuz remain among the key geopolitical facts relevant to the oil sector.