Brent Crude Surges to $99.86 as US Strikes Iran for 12th Consecutive Night and Saudi Tankers Come Under Houthi Attack

Brent crude futures surged to $99.86 per barrel in early Wednesday trading on ICE, up $5.79 or 6.15 percent from Tuesday's settlement. West Texas Intermediate rose $4.24 to $91.07 per barrel on the CME, per OilPrice.com data as of early July 23 trading. Abu Dhabi's Murban crude jumped $20.25, or 22.6 percent, to $109.70 per barrel, reflecting a distinct Gulf-origin premium embedded by the ongoing conflict. All three moves traced back to a single driver: the United States conducted its 12th consecutive night of military strikes against Iran.

US Military Campaign Extends Into Third Week

American forces struck Iranian infrastructure for the 12th straight night, with operations reported to target bridges, railways, and strategic transit corridors. The campaign began in early July after Iran's IRGC Navy withdrew from a 60-day ceasefire and declared it would block all hydrocarbon transit through the Strait of Hormuz. US officials indicated diplomatic contacts continued alongside the military operations, per White House statements cited by OilPrice.com. Strait of Hormuz throughput dropped 59 percent from 12.5 million barrels per day to 5.1 million barrels per day in the week ending July 17, a disruption not previously recorded in modern shipping data.

Houthi Forces Strike Saudi-Flagged Tankers at Bab el-Mandeb

Houthi forces in Yemen attacked two Saudi-flagged oil tankers at the Bab el-Mandeb Strait on Wednesday, per OilPrice.com reporting. The Bab el-Mandeb is the southern chokepoint of the Red Sea and handles crude shipments from Gulf producers bound for European and American refineries. The attack creates a second active disruption alongside Hormuz, narrowing the range of viable routing options for tanker operators in the region. Vessels diverting around the Cape of Good Hope to avoid both straits add substantially to voyage durations and freight costs.

Murban-Brent Premium Near $10 Signals Gulf Risk Embedded in Price

Murban crude, produced by Abu Dhabi National Oil Company and exported via the Fujairah terminal on the Gulf of Oman, traded approximately $9.84 above Brent on Wednesday. Fujairah sits east of the Strait of Hormuz, meaning Murban shipments must still transit the conflict zone at the loading stage. Brent, anchored to North Sea grades that trade entirely outside the conflict zone, has risen sharply but does not carry the same physical delivery risk. At typical Murban lifting volumes of roughly 1.8 to 2 million barrels per day, the approximately $10 premium translates to $18 million to $20 million per day of additional cost for buyers of Gulf-origin crude, primarily Asian refiners.

The Brent-WTI spread widened to $8.79 per barrel as Brent's 6.15 percent gain outpaced WTI's 4.88 percent move. US refinery utilization ran at 96.2 percent for the week ending July 17, per EIA data, leaving little processing capacity to absorb additional supply disruptions. Higher US crude prices have lifted revenues for American upstream producers with Permian and Gulf of Mexico output. The spread reflects the growing insulation of US crude from Middle East transit risk, even as US refiners feel the higher global benchmark indirectly through import cost pressures.

EIA Reports 3.05 Million Barrel Crude Inventory Draw

The US Energy Information Administration's Weekly Petroleum Status Report, released Tuesday for the week ending July 17, showed US crude oil ending stocks fell 3.047 million barrels to 723.1 million barrels. Refinery utilization of 96.2 percent drove the draw, as domestic refiners ran near maximum throughput to meet strong summer fuel demand. US crude inventories remain above five-year seasonal averages, providing a modest buffer against further supply disruptions. EIA's next weekly petroleum inventory release is scheduled for July 29.

Three Days, $11 per Barrel: Tracking the Escalation

When Hormuz throughput collapsed 59 percent to 5.1 million barrels per day in the week of July 20, Brent was trading at $88.61 per barrel in Asian markets, as reported by Oil Authority on July 20. Three trading days later, Brent has added $11.25 per barrel, a gain of 12.7 percent, without any recovery in Hormuz flows. Markets have moved from pricing the disruption at face value to embedding a sustained-conflict premium that accounts for an extended period of constrained Gulf throughput. The escalation curve has not shown any inflection suggesting a near-term diplomatic resolution.