According to WPB, the renewed United States blockade of Iranian ports and the latest air raids across Iran’s southern coast immediately raise the risk of a wider energy and shipping crisis. Before the war, roughly one-fifth of global oil and liquefied natural gas shipments passed through the Strait of Hormuz, while recent attacks have reduced commercial traffic, lifted crude prices and weakened confidence in Gulf loading schedules. Brent settled at $84.73 a barrel on July 14 after gaining 15 percent over seven days. Bahrain, Kuwait and Jordan have reported Iranian retaliation, and Tehran has threatened other regional energy-export corridors. The same conditions are directly relevant to bitumen because Gulf asphalt cargoes depend on refinery output, port access, tanker availability, insurance approval and predictable delivery windows. A prolonged confrontation could tighten feedstock availability, delay bitumen shipments and raise landed costs for road contractors in Asia, Africa and other import markets.
The blockade returned at 2000 GMT on July 14 after Washington had suspended it under the June interim arrangement. The United States said the restriction applies to vessels travelling to or from Iranian ports and coastal areas, while other shipping may use the strait. Hours later, US Central Command announced another round of attacks intended to reduce Iran’s ability to strike commercial vessels. On July 15, American forces reported attacks on coastal defense systems and cruise-missile storage and launch sites on Greater Tunb Island. Iranian media also reported a strike on Hengam Island. The operation followed attacks against military targets near Hormuz and along the coast, including reported incidents around Bandar Abbas, Sirik and Qeshm Island. Iran said further strikes killed personnel at the Bampur military base in the southeast. The pattern is concentrated on Iran’s maritime frontage and infrastructure connected to the Persian Gulf and Gulf of Oman.
The main reason is operational. Iran’s ability to obstruct shipping does not depend only on large naval vessels. It includes mobile anti-ship missiles, coastal launchers, drones, mines, radar sites, small craft, naval facilities and dispersed command positions near the water. Islands such as Qeshm, Hengam, Abu Musa and Greater Tunb provide observation points and possible firing positions close to commercial lanes. Mainland sites around Bandar Abbas, Jask, Sirik, Konarak and Chabahar support naval activity across Hormuz and the Gulf of Oman. Attacking these areas allows the United States to suppress systems that can detect, track or attack merchant shipping and naval escorts. Washington says Iran attacked seven commercial ships during the previous week, leaving crew members dead, missing or injured. Tehran rejects Washington’s account and says it is defending its sovereignty in the strait.
The southern focus also supports the blockade. It cannot be enforced by warships alone while Iran retains coastal missiles, drones, submarines, fast boats and shore-based surveillance. Commercial vessels may remain reluctant to sail under escort if launch sites remain active. Eleven vessels crossed Hormuz on July 14, nine using the Iranian lane, but no visible tanker movements were recorded for loading oil or gas from other Gulf producers. Iranian-linked cargoes included crude, refined products, liquefied petroleum gas, methanol and iron ore. Analysts cited by Reuters warned that Gulf flows could recover slowly even after military activity declines because shipowners remain cautious about Omani and international lanes. Washington must therefore address both physical threats and commercial confidence.
A second objective is economic isolation. Iran’s principal export terminals, refineries, petrochemical facilities and naval logistics are concentrated in the south. Kharg Island is especially important because it handles most Iranian crude exports. President Donald Trump has publicly raised the possibility of taking control of Kharg, and earlier US attacks struck military targets on the island while avoiding, according to Washington, the main oil-loading facilities. The blockade can restrict revenue without immediately destroying every energy installation. It can also attempt to separate Iranian trade from Gulf Arab cargoes. In practice, that distinction is difficult because all shipping faces the same missile, drone, mine, crew-safety and insurance environment. A blockade directed at Iran can still delay non-Iranian cargoes, raise premiums and reduce vessel availability.
This explains the relevance for bitumen. Bitumen is produced from heavy refinery residues, especially vacuum residue, and availability depends on crude runs, refinery configuration and decisions about whether heavy material is allocated to asphalt, fuel oil or further conversion. Restrictions on crude exports can alter refinery production and storage, while attacks or electricity disruptions near southern industrial zones can reduce reliability. Iranian bitumen is shipped through southern terminals in bulk vessels and in packaged forms carried by conventional cargo services. If vessel calls are blocked, insurers withdraw cover, shipping companies suspend bookings or terminals close intermittently, supply may remain unavailable even when product exists in storage. Buyers then seek replacement material from the United Arab Emirates, Bahrain, Oman, Iraq, Turkey, Greece or Asia, increasing competition for cargoes and freight capacity.
Markets dependent on Gulf bitumen for seasonal road programs may feel the consequences first. Importers in India, East Africa and parts of Southeast Asia are sensitive not only to free-on-board prices but also to freight, financing, demurrage, packaging and delivery certainty. Industry assessments in 2026 have reported substantial bitumen price increases and sharp reductions in Gulf shipments to some destinations compared with the previous year. A renewed blockade could add another premium to prompt cargoes, particularly where buyers require non-Iranian origin documents, alternative loading ports or vessels approved for high-risk areas. Countries with domestic refinery output or access to Mediterranean and Asian suppliers may absorb the disruption more easily, while smaller import-dependent markets could face delayed tenders and higher public procurement costs.
The possibility of a US attempt to seize territory, including Kharg or another island, should not be presented as an established decision. No publicly available evidence in the latest official statements shows that Washington has authorized an amphibious occupation or a permanent coastal enclave. The current target list is consistent with blockade enforcement and suppression of maritime strike capabilities without territorial conquest. Occupation would require control of nearby airspace and waters, mine clearance, protection against missiles and drones, a sustained logistics chain, management of civilians and oil facilities, and defense against Iranian counterattacks. It would also carry major legal, diplomatic and political costs and could trigger broader attacks on Gulf bases and commercial infrastructure.
A more plausible near-term scenario is limited military control around shipping lanes rather than formal annexation or long-term occupation. Washington may continue striking coastal systems, intercepting vessels, establishing inspection procedures, escorting selected ships and enforcing exclusion areas around Iranian ports. It may also keep Kharg and other energy sites under threat as leverage in negotiations. This approach imposes economic costs without the burden of governing territory, but it has limits. Iran can disperse mobile launchers, use drones from multiple sites, threaten Gulf bases and connect Hormuz with Bab el-Mandeb through aligned forces in Yemen. The more US assets are concentrated in the south, the more surrounding states are exposed to retaliation. This assessment is an inference from the reported target pattern, declared US objectives and Iran’s demonstrated maritime capabilities, rather than confirmation of a disclosed operational plan.
The campaign therefore reflects geography, maritime warfare and economic coercion rather than clear evidence of an imminent occupation. Southern Iran contains the systems Washington says threaten commercial shipping, the ports required for Iranian trade, the islands overlooking Hormuz and the export infrastructure financing the state. The principal risk is that a campaign intended to secure commerce may instead keep vessels away through retaliation, insurance restrictions and crew refusals. For crude oil, LNG, refined products and bitumen, physical access to the strait is only one requirement; functioning ports, refinery continuity, shipowner confidence and accepted insurance are equally important. Until those conditions return, southern Iran will remain the main arena of the confrontation and uncertainty will continue across global energy and construction-material markets.
By WPB
News, Bitumen, Iran, United States, Strait of Hormuz, Naval Blockade, Kharg Island, Oil Shipping, Gulf Refineries, Maritime Security
