Hurricane Isaias is shutting down a significant portion of Gulf of Mexico oil production, putting fresh pressure on an energy system already facing elevated diesel prices and giving brokers another reminder of how quickly a hurricane can create losses far beyond damaged property.
Around 25% of US Gulf oil production, equivalent to more than 511,000 barrels per day, had been shut in as the storm approached Thursday, while about 16% of natural gas production was also offline. Shell halted production at five offshore facilities and Chevron began shutdown procedures at four of its operated Gulf facilities while evacuating personnel.
While offshore production can resume relatively quickly when a storm passes without significant damage, the bigger concern for fuel markets – and potentially insurers – is whether Isaias disrupts refineries, pipelines, ports or power supplies along the Gulf Coast for an extended period.
The shutdowns also come amid concerns over the increasing price of fuel. The national average on-highway diesel price stood at $6.199 a gallon on October 5, according to the US Energy Information Administration (EIA), $2.488 higher than a year earlier despite falling 18.3 cents from the previous week.
The EIA has already warned that low distillate inventories are contributing to higher diesel prices, with autumn refinery maintenance coinciding with stronger seasonal demand from sectors including agriculture.
The Gulf Coast sits at the center of the US refining network. The region had approximately 9.88 million barrels per day of operable refining capacity at the start of 2026, compared with 18.2 million barrels per day nationally; more than half of US refining capacity is concentrated there.
Temporary shutdowns can create lost production and additional expenses, while damage to refineries or supporting infrastructure can extend outages and potentially pull in property, machinery breakdown and time-element coverages. Suppliers and customers further down the chain may also face contingent business interruption questions if a critical facility cannot operate.
The distinction between a preventive shutdown and an outage caused by covered physical damage can be significant. Business interruption coverage varies by wording, and brokers may need to examine waiting periods, physical damage requirements, utility service interruption provisions and contingent BI extensions as clients assess losses.
Adrian Hall (pictured), CEO US at Swiss Re Corporate Solutions, said the hurricane highlighted the broader vulnerability of energy infrastructure.
“Reliable energy supply depends on grids, energy networks and critical infrastructure that can withstand disruption and recover quickly when it occurs,” Hall said. “With significant capital flowing into energy infrastructure, understanding physical risks is increasingly important to keeping those investments resilient, financeable and insurable.”
Swiss Re Institute expects worldwide energy infrastructure investment to reach $3.4 trillion in 2026, including roughly $2.2 trillion across renewables, nuclear power, grids, storage, low-emission fuels, efficiency and electrification.
The expansion is creating new premium opportunities, but also larger concentrations of interconnected infrastructure that can be vulnerable to the same catastrophe or infrastructure failure.
Hall stressed that resilience is critical amid the industry’s expansion. “Resilience starts well before a hurricane makes landfall,” he said. “Climate analytics, exposure data and loss modelling can help businesses understand where physical risks sit across critical infrastructure and make more informed decisions about where and how assets are built.
“Making those risks more transparent and manageable helps protect investment and support reliable energy supply.”
Moving forward, there’s need for greater coordination between brokers, clients, carriers and engineers while projects are still being designed, particularly around redundancy, backup power, dependencies on utilities and suppliers, and how quickly operations could be restored following a catastrophe.
“With so much new energy infrastructure being built, resilience needs to be considered from the outset, not added after the fact,” Hall said.
“Strong engineering standards, redundancy and contingency planning can reduce the impact of disruption and improve insurability. That ultimately gives insurers, lenders and investors greater confidence to support the infrastructure the US economy increasingly depends on.”
