BY SCN NEWS
LONDON — Brent crude climbed above $100 a barrel on Wednesday for the first time since July 24 as escalating U.S.-Iran fighting and Houthi attacks on Saudi energy infrastructure forced traders to confront a more dangerous threat to global supply: disruption is no longer concentrated around the Strait of Hormuz, but is spreading toward the Red Sea route that has helped compensate for restricted Gulf traffic. Brent futures rose as high as $100.95 a barrel, a six-week peak, while U.S. West Texas Intermediate reached $95.60, extending a rally that has lifted the international benchmark by roughly a quarter since early August.
The immediate catalyst was a rapid widening of attacks on the region's energy infrastructure. U.S. forces struck five Iranian crude carriers after Tehran targeted an American warship, adding to three Iranian tankers attacked by Washington days earlier, while Iran responded with missile attacks toward U.S. forces in Jordan. At the same time, Iran-backed Houthis attacked Saudi energy installations, setting facilities ablaze and raising the prospect that the conflict could disrupt shipments through the Red Sea as well as the Persian Gulf. The combination is changing the calculation for oil traders because the Red Sea has functioned as an important alternative route while traffic through Hormuz remains severely constrained.
The scale of the Hormuz disruption helps explain why attacks elsewhere now carry disproportionate consequences. Rystad Energy chief economist Claudio Galimberti estimated that roughly 8 million to 9 million barrels per day moved through the strait in the week before fighting resumed on August 30, but more recent flows have fallen below 2 million barrels per day. Before the war, roughly one-fifth of global petroleum liquids moved through the narrow waterway. With that route already impaired, attacks threatening Saudi facilities and Red Sea shipping reduce the market's ability to redirect barrels around the principal Gulf bottleneck.
That makes Wednesday's $100 breakthrough more than a psychological milestone. The futures market is actually catching up with stress that has been visible for days in the physical oil market: Reuters reported that Dated Brent, the physical benchmark used to price roughly two-thirds of the world's crude, has traded above $100 since September 3. Buyers needing actual cargoes react more quickly when available barrels become scarce, meaning physical prices were signalling tightening supply before the widely watched Brent futures contract crossed three digits.
The distortion is even more severe in refined fuels. European diesel futures were trading near $199 a barrel on Wednesday and have remained above $100 throughout the Iran war, while diesel refining margins reached a record $78.90 a barrel on September 1 compared with an average of about $21 in 2025. European gasoline has also remained above $100 since March. Wood Mackenzie's Alan Gelder told Reuters that, if refining margins were at normal levels, current conditions would be equivalent to crude trading around $150 a barrel, illustrating how the headline Brent price understates the pressure already moving through the fuel system.
The latest military escalation has intensified that shortage risk. U.S. attacks on Iranian crude carriers could discourage ship-to-ship transfers in the Gulf of Oman, which analysts say have helped keep barrels reaching world markets despite restrictions elsewhere. A tanker carrying about 2 million barrels of Iraqi fuel oil was also struck by a drone in Iraqi territorial waters on Wednesday, while the UK Maritime Trade Operations agency reported several merchant vessels hit by disabling fire overnight in the Gulf. Hamad Hussain of Capital Economics said markets increasingly appear to be pricing a longer Middle East conflict and a greater probability that military strikes will interfere directly with regional oil flows.
The consumer consequences are already extending far beyond crude trading screens. AP reported that the average U.S. regular gasoline price reached $4.22 a gallon Wednesday, more than a dollar above its level a year earlier, while diesel reached $5.94 a gallon after hitting a record last week. Jet fuel costs have risen sufficiently for airlines to cut some flights and increase fares and fees. Higher transportation and production costs can then move through food, manufactured goods and services, transforming a Middle East shipping disruption into a broader inflation problem for economies thousands of miles from the conflict.
That transmission is particularly significant for central banks. Policymakers attempting to contain inflation now face an energy shock capable of keeping consumer prices elevated even as economic growth comes under pressure. The conflict therefore presents the familiar but difficult combination of weaker activity and higher input costs, potentially complicating decisions on interest rates in the United States, Europe and elsewhere. Oil's return above $100 is consequently important not because three digits constitute an unprecedented price — Brent reached $126.41 on April 30 — but because the latest rise is being driven by evidence that the geographical footprint of supply risk is expanding again.
The critical question is now whether the two transport systems can remain sufficiently functional at the same time. Hormuz traffic has already collapsed from its recent recovery, U.S. forces are physically attacking vessels tied to Iran's oil network, and Houthi attacks threaten Saudi infrastructure and the Red Sea alternative. If insecurity simultaneously constrains the Persian Gulf and Red Sea corridors, the oil market loses not merely production but the flexibility to reroute available supply — a development that could matter far more to prices than Brent crossing $100 itself