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Hurricane heads for US Gulf coast: Update

  • Spanish Market: Crude oil, Oil products
  • 08/10/26

Updates shut-in production data; port information

Hurricane Isaias, the first named hurricane of the 2026 Atlantic season, is moving toward the US Gulf coast near Alabama, threatening an area with significant refining assets and causing 1.3mn b/d of oil production to be shut in.

Landfall is expected Friday night or early Saturday along the Florida-Alabama border, according to the National Hurricane Center (NHC). The storm will be a strong Category 2 storm at landfall with sustained winds of up to 110 mph, according to AccuWeather.

The NHC issued a hurricane warning with heavy rain and winds of 74 mph or higher from Ocean Springs, Mississippi, to the borders of Bay County and Gulf County in Florida.

NHC also issued a tropical storm warning with winds between 39-73mph for a wider area stretching west to the Jefferson/Plaquemines parish borders in Louisiana and east to the Aucilla River in Florida.

Isaias is currently in the Gulf of Mexico about 170 miles north of Progreso, Mexico, with sustained winds of 85 mph with higher gusts, according to the NHC. Oil and gas producers in the Gulf of Mexico have evacuated workers and curbed output ahead of the storm.

As of 12:30pm ET Thursday, 1.3mn b/d of US oil production, or 63pc of total offshore output, was offline, according to the Marine Minerals Administration. About 1.1 Bcf/d of natural gas production, or 57pc of total US Gulf output, also was shut.

Shell said earlier this week it was evacuating all staff and shut production at its Mars, Olympus, Ursa, Vito, and Appomattox assets as a precaution. Shell also moved non-essential personnel from its Stones platform.

Chevron said it had shut in production at five of its operated facilities in the region.

The onshore areas threatened by the storm include several large oil refineries, such as Chevron's 356,000 b/d Pascagoula, Mississippi, plant, PBF Energy's 190,000 b/d Chalmette, Louisiana, refinery, Marathon's 617,000 b/d Garyville, Louisiana, refinery, Shell's 231,000 b/d Norco, Louisiana, refinery and Valero's 125,000 Meraux and 215,000 b/d St Charles facilities also in Louisiana.

Power outages and flooding could impact refinery operations at a time when US refiners are operating at levels above 90pc amid global fuel shortages caused by the wars in the Middle East and Russia.

The current NHC projected trajectory of Isaias would likely spare most of the refineries in Louisiana from the most severe hurricane impacts.

The US Coast Guard set the port of Mobile, Alabama, under condition Yankee, meaning gale force winds (39-54mph) were expected within 24 hours. Traffic restrictions were in effect Thursday morning allowing vessels to enter the port only with Coast Guard permission. The port said it would suspend vessel operations at its public berths at 1pm ET Thursday.

The Coast Guard on 7 October set condition X-ray for the ports of Plaquemines, New Orleans, and St Bernard in Louisiana, which means gale force winds were forecast within 48 hours. Those ports remain open to commercial traffic.


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