Oil climbs 2% despite a "crude build": the SPR drained almost exactly what commercial tanks gained
WTI rose to about $91.50 after reports that Washington will not ease Iran sanctions. The EIA's 900,000-barrel commercial crude build was matched by an 800,000-barrel draw from the Strategic Petroleum Reserve, which is now 30% smaller than a year ago.
Oil prices rose on Wednesday, the last trading day of September. West Texas Intermediate was near $91.50 a barrel in early afternoon, up about 2.4%, and Brent was around $103.70, up roughly 1.1%, according to quotes on OilPrice.com. The site tied the move to reports that President Trump does not intend to ease sanctions pressure on Iran, and said both benchmarks were on course for a monthly gain, about $10 a barrel for Brent and about $3 for WTI. Gasoline futures did more than crude, up about 3.3% to $3.385 a gallon on the same quote board.
The "crude build" that was not really a build
The day's inventory headline was a rise in U.S. crude stocks. The Energy Information Administration's weekly balance sheet shows commercial crude inventories up 0.9 million barrels to 427.3 million in the week to September 25. OilPrice.com noted that puts commercial stocks about 2% above their five-year average for the time of year.
The same table shows the other half. The Strategic Petroleum Reserve fell 0.8 million barrels to 283.8 million. Add the two together and total U.S. crude stocks moved from 711.0 million to 711.1 million barrels: flat. Counting gasoline, diesel, jet fuel and everything else, total petroleum stocks including the SPR fell 7.8 million barrels in the week.
The year-on-year comparison is starker. Commercial crude is 10.8 million barrels higher than a year ago. The SPR is 122.9 million barrels lower, down 30.2% from 406.7 million. Put plainly, the comfortable-looking commercial number is being propped up by the government reserve, and that cushion is a third smaller than it was a year ago.
Why the tanks filled this week
The build did not come from weak demand. Refiners processed 16.26 million barrels a day of crude, 554,000 barrels a day less than the week before, per the EIA, so less crude left storage for the refinery. Meanwhile, total products supplied, the EIA's proxy for demand, came in at 21.5 million barrels a day, 1.33 million above the same week last year. Gasoline stocks fell 1.7 million barrels to 204.4 million, 7.4% below a year earlier, which fits with gasoline futures leading Wednesday's rally.
What comes next
- OPEC+ on Sunday. Eight members are expected to leave output targets unchanged for November, according to Reuters sources cited by OilPrice.com. The quotas matter less than usual: the alliance produced 38.05 million barrels a day in August per OPEC's own monthly report, roughly 5 million below pre-war levels, because Gulf members cannot ship all they are allowed to pump.
- Forecasts are catching up. A Reuters poll of 30 economists and analysts, reported by OilPrice.com, raised the average 2026 Brent forecast to $89.05 from $85.08 a month earlier, and WTI to $83.90 from $80.20. Most respondents do not see a return to surplus until 2027.
Who feels it first
For anyone running vans, lawn equipment or a delivery route on gasoline, the relevant number Wednesday was the 3.3% jump in gasoline futures, not the crude build. Wholesale moves usually take time to reach the pump, but falling gasoline stocks and a thinner federal reserve both leave less room to absorb the next supply shock. We covered the diesel side of the same report, where distillate stocks sit 14% below normal, here. Live prices are on our crude oil chart.
Sources: EIA Weekly Petroleum Status Report, Table 1; OilPrice.com on Iran sanctions and monthly gains; OilPrice.com on the EIA report; OilPrice.com on OPEC+; OilPrice.com on the Reuters poll. Prices are intraday and will change. This is market information, not investment advice.
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