Hurricane Isaias shuts in about 1.3 million barrels a day of Gulf of Mexico oil, EIA says
Victoria Shinder2 min readThe U.S. Energy Information Administration published a short assessment on 9 October of Hurricane Isaias, then expected by NOAA to make landfall on the Gulf Coast late on Friday 9 October or early on Saturday 10 October. EIA describes it as the first hurricane of the 2026 Atlantic season and the largest storm system to make landfall in the region since Hurricane Helene in September 2024.
Production already offline before landfall. Citing a report by the Marine Minerals Administration as of Thursday 8 October, EIA says 130 production platforms and rigs had been evacuated or moved, shutting in about 1.3 million barrels per day of crude oil and about 1.1 billion cubic feet per day of natural gas. (The EIA text writes the gas unit as "billion million cubic feet per day", an evident slip; the plain reading is 1.1 Bcf/d.)
Why the refining note matters. EIA adds that the U.S. Gulf Coast holds a large share of the country's refining fleet and that Isaias could affect refinery operations. That warning lands in an unusual quarter. In its review of the third quarter, published on 5 October, EIA reported U.S. refinery utilisation averaging 95%, distillate inventories 13% below their five-year average in the week to 25 September, and distillate and jet fuel crack spreads close to three times their year-earlier levels. A coastal refinery outage takes product out of a market where diesel was already tight; an offshore crude shut-in, by contrast, mostly removes feedstock that refiners can partly replace from storage or imports.
What the note does not contain. It gives no estimate of how long the shut-ins will last, no refinery-by-refinery exposure and no power-sector figures — utility outage counts belong to the utilities and to the Department of Energy's situation reports, not to this assessment. How quickly production returns is something the regulator's releases will show; EIA has not estimated it.
For grid and market readers the practical takeaway is to watch two numbers in the coming days: the regulator's shut-in percentage as crews return, and any refinery restarts on the Gulf Coast. The first decides the crude side of the story, the second decides whether the distillate squeeze EIA described for the third quarter gets tighter.
Sources: EIA, Today in Energy, Hurricane Isaias nears landfall, leading to production shut-ins, 9 October 2026 — https://www.eia.gov/todayinenergy/detail.php?id=68284 ; EIA, third-quarter petroleum markets, 5 October 2026 — https://www.eia.gov/todayinenergy/detail.php?id=68245