Hurricane Isaias adds a short fuel squeeze to a refining shortage expected to last months

The shut-in count measures crude at the platform. A fuel or freight budget meets the storm at the refinery, where the exposure is smaller but sits closer to the invoice. Andy Lipow, president of Lipow Oil Associates, estimated that 14% of U.S. refining capacity is in the storm's path, with most refineries already running at maximum levels ^[13]. "There is no slack in the system," he wrote ^[14]. Patrick De Haan, head of petroleum analysis at GasBuddy, said flooding could take refineries in the path offline for up to 10 days and produce a short-term squeeze on U.S. gasoline prices ^[15].

The size of the shut-in depends on the hour and the count. NBC News, citing the U.S. Marine Minerals Administration, reported about 25% of Gulf production suspended as of Thursday morning ^[6]. Heatmap, citing the Bureau of Safety and Environmental Enforcement, put it at roughly two-thirds by Thursday night ^[5], more than double the morning figure ^[9]. The evacuated rigs were about 33% of the 371 manned platforms ^[19], so the output taken offline came disproportionately from higher-output sites. Over 57% of Gulf gas production was also offline ^[1]. Producers in the region have well-established shut-down protocols for storms ^[8], and Chevron said five of its Gulf facilities were still producing at normal levels ^[7].

Thursday's price moves had a different cause. Heatmap tied a Brent rise of more than 4% to an attack on an oil tanker near Qatar ^[2]. NBC tied a rise of nearly 5% to reports that President Donald Trump was considering renewed attacks on Iran ^[3]. U.S. gasoline averaged $4.36, slightly below the week before and $0.21 above a month earlier ^[10].

A skeptic would say a storm that takes most Gulf crude offline is reason enough to brace for swings, and Lipow's note backs that for the short run. "This could not have come at a worse time as gasoline and diesel inventories are quite low," he wrote ^[11]. Even a short-lived impact "can be significant," he added ^[12]. I agree for the next two weeks. The longer driver is overseas, De Haan said, especially in Russia, where Ukraine continues to target refineries ^[16]. "The refining problem is looking like, short-to-medium term, at least three to six months," he said ^[17].

That leaves a fuel-exposed team choosing which horizon to price this quarter. Locking in supply during the storm means paying for any storm premium that De Haan's 10-day estimate says should pass ^[15]. Waiting leaves the team open to the longer shortage. "So there needs to be some deescalation there for there to be any relief, but it doesn't look like we're seeing it," De Haan said ^[18]. I think the quarter's fuel budget belongs on the three-to-six-month estimate, with Isaias treated as a spike inside it. A budget set off the storm this quarter would need resetting next quarter, after the 10-day outage has passed and while De Haan's three-to-six-month window is still open ^[15][17].