U.S. stock futures are poised to extend May's record-setting rally despite fresh geopolitical tensions between Washington and Tehran. Futures climbed across all three major indexes overnight, showing remarkable resilience as investors digest the latest escalation in Middle East hostilities.

Brent crude prices surged 3% after the Pentagon confirmed strikes on Iranian air-defense sites, retaliation for Tehran's downing of an American drone. The energy spike reflects renewed concerns about supply disruptions in a region responsible for roughly one-third of global seaborne oil trade.

Complicating diplomatic efforts, Israel's ground incursion into Lebanon has intensified, while negotiations over a memorandum of understanding between the U.S. and Iran stall. Any agreement removing blockages in the Strait of Hormuz could significantly ease shipping bottlenecks that threaten global energy flows.

Markets appear to be pricing in continued resilience despite the risk-off sentiment that typically accompanies military escalations. The disconnect between rising equity futures and climbing energy prices suggests investors see limited long-term disruption to corporate earnings, though energy sector stocks will likely benefit from higher crude pricing.