Hurricane Isaias halts over 70% of US Gulf oil output

Hurricane Isaias has forced the shutdown of nearly 1.46 million barrels per day of oil production in the United States Gulf of Mexico. The Marine Minerals Administration reported on Friday that operators had shut in 1,458,814 barrels per day, representing 71.51% of current Gulf oil production. Natural gas output was also significantly impacted, with 1.26 billion cubic feet per day, or 58.84% of Gulf gas production, taken offline. This latest figure marks a further loss of 176,000 barrels per day compared to the 1.28 million barrels per day reported by the agency on Thursday.

The rapid escalation of the shutdown has led to widespread evacuations across the region. Operators have now cleared 129 production platforms, which accounts for nearly 35% of the 371 manned platforms in the Gulf. Drilling operations have also been suspended, with eight of the 11 non-dynamically positioned rigs evacuated. Additionally, two of the 17 dynamically positioned rigs have moved out of the storm’s path to ensure safety. The scale of these operational disruptions has changed quickly over the past few days, reflecting the intensifying threat posed by the hurricane.

The timeline of the production losses illustrates the swift deterioration of conditions. On Tuesday, before Isaias developed into a hurricane, no platforms or rigs had been evacuated, and only 9.24% of Gulf oil production was offline. By Thursday, the shut-in share had jumped sharply to 62.89%. Friday’s figures indicate that more than seven out of every ten barrels normally produced in the Gulf are temporarily out of the market. This rapid increase in offline capacity underscores the significant operational challenges faced by energy companies in the region.

While production losses do not necessarily translate into lasting supply deficits, the situation remains critical. Offshore operators routinely shut wells and evacuate personnel ahead of hurricanes, then inspect facilities and restart production after the storm passes. The speed of the restart depends heavily on the extent of damage left behind by Isaias. Undamaged platforms can return to service relatively quickly once safety inspections are completed. However, damage to platforms, subsea equipment, pipelines, or onshore infrastructure can stretch outages considerably longer, potentially affecting global supply chains.

The Gulf shutdown is occurring in an oil market that is already short on comfortable supply cushions. This follows months of disruptions in the Middle East and falling inventories. For now, the additional 176,000 barrels per day lost between Thursday and Friday has brought the three-day Gulf shutdown from 185,120 barrels per day to nearly 1.46 million barrels per day. The situation highlights the vulnerability of global energy supplies to severe weather events and the ongoing challenges in maintaining stable production levels.