US-Iran tensions lift oil as Strait of Hormuz disruption fears intensify

Brent crude jumped on July 20, 2026, briefly rising above $90 a barrel and later reaching $91.40, as escalating U.S.-Iran hostilities and fears of disruption in the Strait of Hormuz drove energy markets higher. The move came amid Iranian and IRGC claims about tanker explosions or immobilizations near the strait, warnings that oil, gas and chemical fertilizer shipments would not be safe, and conflicting reports on whether vessel traffic had sharply fallen or halted. At the same time, markets weighed unconfirmed signs of possible diplomacy, including an Iranian Foreign Ministry spokesperson saying talks with the United States could still proceed based on national interests and a Reuters-cited report from a senior Iranian official suggesting a possible 10-day ceasefire, though diplomatic sources said negotiations remained stalled. Oil options pricing also reflected some moderation in worst-case expectations, with the market-implied probability of WTI reaching $130 in July falling to 0.4%, while Bitcoin stayed broadly range-bound and Brent remained firm, underscoring that traders were treating any de-escalation narrative cautiously.