Iran has intensified surveillance and military operations around the Strait of Hormuz, as attacks on commercial vessels increase and oil shipments through the strategic waterway fall sharply, raising fresh concerns about global energy supplies and the widening conflict between Iran, the United States and Israel.
In a report published on Wednesday, October 14, 2026, Al Jazeera said Iran had deployed additional naval units to monitor maritime traffic east of the Strait of Hormuz, extending into the Gulf of Oman and the Arabian Sea. Tehran says the deployment is intended to monitor what it describes as hostile activities and ensure that vessels comply with its restrictions on passage through the region.
Iran Adopts New Tactics Against Ships
Iranian officials have acknowledged that the country has changed its tactics for targeting vessels that Tehran believes are violating its restrictions. According to officials who spoke to Reuters, the new approach began around 10 days ago and has contributed to an increase in attacks.
The strategy reportedly includes changes to the frequency and methods of attacks, as well as an expansion of operations beyond the Strait of Hormuz into nearby waters, including areas off Qatar and the United Arab Emirates.
A US military official told Reuters that Iran's Islamic Revolutionary Guard Corps (IRGC) has also begun using unarmed observers in small boats to identify potential targets following US strikes that damaged much of Iran's radar infrastructure.
The observers reportedly relay information about potential targets to Iranian forces. US officials say the tactic has raised concerns about the safety of commercial vessels and naval ships operating in the region.
Attacks on Commercial Ships Reach New Highs
The latest escalation has created one of the most dangerous periods for commercial shipping since the US and Israel began military strikes against Iran on February 28, 2026.
According to maritime security reports cited by Al Jazeera, at least 15 attacks or related incidents were recorded between October 6 and October 14. Eleven of those incidents reportedly occurred within just four days.
The incidents have involved tankers, container ships and other commercial vessels. On Tuesday, the United Kingdom Maritime Trade Operations agency reported that a container ship and an oil tanker had been struck by unidentified projectiles in the Strait of Hormuz.
The US Navy-led Joint Maritime Information Center has described the threat to commercial shipping in the area as severe, warning of continuing attacks, attempted attacks, drone activity and the targeted surveillance of merchant vessels.
Oil Shipments Fall Sharply
The growing insecurity has had a direct impact on oil transportation through the strait.
Before the conflict began, the Strait of Hormuz handled approximately one-fifth of the world's oil and liquefied natural gas trade. It was also used by roughly 125 large commercial vessels each day, making it one of the most important routes in the global energy market.
Although oil shipments through the strait recovered significantly in September, the latest attacks have reversed much of that progress.
Data from maritime intelligence company Kpler, cited by Al Jazeera, showed that oil shipments through the waterway fell to approximately 2.9 million barrels on October 11, compared with nearly 20.8 million barrels on October 8. The pre-war average was about 17.1 million barrels per day.
The decline has been attributed to increased security risks, costly insurance premiums and concerns among shipping companies that their vessels could be attacked. Some operators have reportedly reconsidered their routes or delayed voyages through the region.
Oil Prices Rise as Markets React
The latest attacks have pushed oil prices higher as traders worry about further disruptions to supplies from the Middle East.
On Wednesday, October 14, Brent crude futures rose to around $106 a barrel, while US West Texas Intermediate crude approached $96 a barrel during trading.
The increases reflect fears that prolonged disruption in the Strait of Hormuz could reduce the amount of oil reaching international markets. Higher transportation and insurance costs are also adding pressure to energy prices.
Analysts warn that further attacks could cause additional price increases, potentially raising fuel and transportation costs for consumers and businesses around the world. Countries that depend heavily on imported energy could face particularly serious economic consequences.
Iran and the United States Dispute Control of the Strait
The latest developments have intensified the struggle between Tehran and Washington over control of the strategic waterway.
Iran maintains that its restrictions and military operations are necessary for national security and a response to the US-Israeli military campaign. Iranian officials have also indicated that they intend to prevent vessels they consider to be violating their restrictions from passing through the strait.
The United States, meanwhile, has maintained a naval blockade of Iranian ports and continued economic pressure on Tehran through sanctions.
US Central Command has rejected Iran's claims that it controls the Strait of Hormuz, arguing that American forces and regional partners continue to protect shipping routes and facilitate the movement of oil.
The two sides therefore remain locked in a confrontation in which both military pressure and control over energy transportation are being used as leverage.
Why the Conflict Matters to the World
The situation in the Strait of Hormuz has implications far beyond the Middle East. Any sustained interruption to oil and gas shipments through the waterway could affect global energy prices, international trade and economic stability.
Higher oil prices can increase the cost of producing and transporting goods, putting additional pressure on households and businesses. Developing economies that rely on imported fuel may be especially vulnerable to prolonged price increases.
For countries such as Nigeria, which produces crude oil but also imports refined petroleum products, higher international oil prices can have mixed consequences. Increased crude export earnings may benefit government revenue, while higher global energy and shipping costs can place pressure on domestic fuel prices and the wider economy.
The crisis also highlights the vulnerability of global supply chains to conflict around major maritime chokepoints.
What Happens Next?
The immediate outlook remains uncertain. Iran appears determined to use its position around the Strait of Hormuz to increase pressure on Washington, while the United States continues efforts to restrict Iranian trade and maintain maritime security.
Diplomatic efforts to resolve the conflict face significant obstacles, and neither side has demonstrated that it is ready to abandon its principal demands.
For now, the increase in attacks, the sharp fall in oil shipments and rising energy prices indicate that the confrontation is entering another dangerous phase.
The key question is whether diplomatic negotiations can prevent further escalation before continued disruption to the Strait of Hormuz causes even greater damage to global energy markets.