Oil prices rose on Monday after the United States and Iran exchanged military strikes near the Strait of Hormuz [1].

The escalation threatens the security of one of the world's most critical oil transit points. Because a significant portion of global energy supplies passes through this narrow waterway, any disruption to shipping can trigger immediate volatility in international markets.

Market reactions were swift following the military activity. Oil prices climbed by more than three percent [3], with some reports indicating a surge of as much as four percent [1] or as high as five percent [2]. Brent crude rose above $79 per barrel [1] and approached the $80 mark [5].

Reports regarding the status of the waterway vary. One source said that Iran closed the Strait of Hormuz [2], while other reports said the U.S. and Iran exchanged strikes but the Strait remained open [1]. The conflicting accounts highlight the fog of war surrounding the current military engagements in the Gulf region.

Analysts suggest that the volatility will persist as long as the military situation remains unstable. "Until there is consistent two‑way traffic in the Strait of Hormuz, concerns will remain over supply," Cornelia Meyer said in a report for Al Jazeera English [1].

Both nations launched strikes in response to the other's actions, further heightening fears that a localized conflict could evolve into a broader regional crisis [1, 3]. The shipping industry remains on high alert as the U.S. and Iran continue to exchange fire in the region [6].

Oil prices rose by as much as four percent

The price volatility reflects a 'risk premium' added by traders who fear a total blockade of the Strait of Hormuz. Since the waterway is a primary artery for global oil, the contradiction between reports of a closure and continued openness suggests a high level of uncertainty that typically keeps prices elevated until a diplomatic resolution or a stabilized ceasefire is reached.