Key Takeaways
- Iran’s Armed Forces launched a "decisive operation" using missiles and drones against U.S. bases and interests in the Middle East on September 1, 2026.
- Global oil prices spiked over 4%, with Brent crude hitting $94.45 per barrel and WTI rising to $90.11 as hostilities reignited after a month-long lull.
- U.S. Central Command (CENTCOM) confirmed retaliatory strikes on Islamic Revolutionary Guard Corps (IRGC) targets in southern Iran, including Bandar Abbas and Qeshm Island.
- Two supertankers carrying Saudi and South Korean oil were struck by projectiles in the Strait of Hormuz, further destabilizing the world’s most critical energy transit point.
The Iranian military, via the semi-official Tasnim News Agency, announced on Tuesday that it had begun a large-scale operation targeting American military installations in the region. The strikes are a direct response to what Tehran described as "enemy" aggression, following a series of U.S. air strikes on Iranian mainland targets earlier in the day.
The escalation has shattered a fragile month-long ceasefire in a conflict that has now spanned seven months. U.S. Central Command (CENTCOM) stated its forces began striking IRGC positions at 12:00 p.m. ET on September 1, targeting infrastructure used to launch sea mines and missiles. These U.S. actions were themselves a response to an Iranian missile barrage on U.S. bases in Jordan over the weekend.
Financial markets reacted sharply to the return of kinetic warfare in the Persian Gulf. Brent crude (BRENT) futures jumped 4.4% to settle near $94.45, while U.S. West Texas Intermediate (WTI) rose 5% to $90.11. Investors are increasingly concerned that the Strait of Hormuz, which handles approximately 20% of global oil consumption, may face a prolonged or total closure.
On the ground, explosions were reported in the strategic port cities of Bandar Abbas, Chabahar, and across Qeshm Island. President Donald Trump confirmed the "large and powerful" nature of the U.S. strikes on social media, warning that any further Iranian retaliation would be met with hits at a "much harder and higher level."
The maritime threat reached a new peak on Monday night when the Sidr, a Saudi-operated supertanker, and the Senegal Prosperity, a South Korean-owned vessel, were both hit by projectiles while exiting the Strait. While no group has officially claimed responsibility for these specific tanker hits, the IRGC has previously vowed to prevent oil exports from the Gulf if its own interests are targeted.
Market analysts suggest that the current volatility is driven by fears of a full-scale regional war. Beyond energy, the conflict is impacting broader financial assets; the U.S. 10-year Treasury yield rose to 4.79% as investors weighed the inflationary impact of sustained high energy costs. Despite the rhetoric, some diplomatic channels remain open, with Iranian President Masoud Pezeshkian suggesting at the Shanghai Cooperation Organisation (SCO) summit that Tehran would reciprocate if the U.S. returned to previous interim agreements.
Ed Liston is a senior contributing editor at TheStockMarketWatch.com. An active market watcher and investor, Ed guides an independent team of experienced analysts and writes for multiple stock trader publications.