Hurricane 'Isaias' Shuts Down 63% of Offshore Oil Production in the Gulf of Mexico

Hurricane 'Isaias', the first hurricane in the Atlantic Ocean during the 2026 season, prompted operating companies to shut down 62.9% of daily offshore oil production in the Gulf of Mexico, or about 1.28 million barrels per day, along with 57.4% of natural gas production, equivalent to around 1.13 billion cubic feet per day.

These figures came based on reports from 12 offshore operators, after shut-ins were limited to about 25% of oil production the previous day. A total of 121 out of 371 manned platforms, nearly a third, were evacuated, along with five non-self-propelled rigs, while four rigs were moved away from the storm's path.

Shell shut down production at the Mars, Olympus, Ursa, Vito, and Appomattox platforms, while Chevron suspended operations at four offshore sites, increasing the amount of shut-in capacity in the region.

Sustained winds accompanying the hurricane reached 85 mph, with its center located about 380 miles south of the mouth of the Mississippi River, moving northeast at 10 mph. It is expected to make landfall late Friday or Saturday morning, accompanied by warnings of life-threatening storm surge.

What do these terms mean?

Shut-in: Temporarily closing wells or platforms ahead of a storm or incident; production gradually resumes after the danger passes.

Offshore Platform: A fixed or floating facility at sea that extracts oil or gas and transports it ashore via pipelines.

Natural Gas: A fossil fuel often extracted alongside oil, used in electricity generation, industry, and heating.