Iran War Shipping Update – June 11, 2026

Since the outbreak of the Iran War on February 28, Iran’s “Ghost Fleet” has continued operating across key maritime routes and continued to load oil. However, since the U.S. blockade initiated on April 13, oil exports have dropped dramatically. UANI observed zero crude shipments passing the blockade during the month of May.

To read UANI’s May 2026 Tanker Tracker, click here.

To read UANI’s statement on FAQs and keys facts about the U.S. blockade, click here. 

On June 11, U.S. CENTCOM posted that U.S. forces have redirected 135 commercial ships and disabled 9 ships to prevent them from entering or leaving Iranian ports, as well as allowing 42 vessels supporting humanitarian aid to pass since the commencement of the blockade.

U.S. CENTCOM disabled a third non-compliant tanker JALVEER (IMO 9486283) as it transited the Gulf of Oman at 11:20pm on June 10. 

U.S. CENTCOM update on June 11 (Credit: U.S. CENTCOM/X)

CENTCOM reported that two crew members from a U.S. Army AH-64 Apache were rescued by American forces after their helicopter went down near the coast of Oman on June 8. U.S. forces responded to the attack on their Apache helicopter by targeting Iranian air defense sites, ground-control stations and surveillance radar near the Strait of Hormuz, which Iran then retaliated by targeting U.S. military bases in Jordan, Kuwait and Bahrain. President Donald Trump posted on June 11 that the United States had cancelled scheduled strikes on Iran amid negotiations, but that the naval blockade would remain in full force until a deal was finalized.

International Sanctions Enforcement

India’s ship safety certifier, Indian Register of Shipping (IRClass), took a tougher stance on vessels involved in evading international trade sanctions by cancelling the certification of more than 200 tankers and other ships since 2023. IRClass is one of the world’s leading ship certifiers, and removal from its list will likely complicate a vessel’s ability to secure insurance and access ports. Since April 2020, UANI had written 26 formal letters to IRClass demanding that it deregister Iran-complicit vessels from its fleet.

Status of the Strait of Hormuz

The Strait of Hormuz remains a critical flashpoint in the Iran War. Since the start of the conflict, 49 confirmed maritime incidents involving commercial vessels and offshore infrastructure have been reported across the Persian Gulf, Strait of Hormuz, and Gulf of Oman.

The enduring risk has created severe congestion and instability across the Persian Gulf’s shipping lanes. Prior to the outbreak of hostilities, about 138 vessels transited the Strait of Hormuz daily. Since March 1, 2026, marine traffic data shows growing clusters of loitering vessels on both sides of the Strait of Hormuz, with many refraining from transiting due to safety concerns.

In response to vessels attempting to transit the Strait of Hormuz, the International Maritime Organization Secretary General commented on June 9: “I recall in the strongest possible terms that the ship’s master, and the company, bear the ultimate responsibility for voyage planning.... No commercial or operational consideration can justify exposing seafarers to such levels of danger. The protection of their lives must remain the overriding priority at all times.”

On June 11, however, CENTCOM posted that the Strait of Hormuz is open for transit with safe pathways established for commercial vessels not violating the U.S. blockade against Iranian ports. The exact operational details of the safe pathways for commercial ships are not yet known. 

U.S. CENTCOM update on the Strait of Hormuz (Credit: U.S. CENTCOM/X)

IRGC efforts to restrict Freedom of Navigation

The IRGC’s announced so-called “Persian Gulf Strait Authority” (PGSA) published a proposed scheme for controlling and restricting freedom of navigation through the international strait on May 21. Such measures are in direct contradiction to UNCLOS Article 44, “Duties of States bordering straits,” which states:

“States bordering straits shall not hamper transit passage and shall give appropriate publicity to any danger to navigation or overflight within or over the strait of which they have knowledge. There shall be no suspension of transit passage.”

Any attempt to impose unilateral restrictions on transit passage through an international strait undermines the internationally recognized navigational rights guaranteed under UNCLOS.

IRGC PGSA tweet on May 21 (Credit: X)

The U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC) took action and designated Iran’s so-called Persian Gulf Strait Authority (PGSA) on May 27.

Iranian Oil-Laden Tankers Inside the U.S. Blockade

UANI has identified at least 76 tankers laden with Iranian oil — primarily crude, but also other petroleum products and LPG — currently operating inside the U.S. blockade line which can be drawn from the Iranian-Pakistan border to the most eastern point of Oman. 

Map of Iranian oil laden tankers inside the U.S. blockade on June 11

Iran-linked Vessels at Kharg Island, Iran

Satellite imagery from June 10 indicates an accumulation of tankers at the Kharg Island anchorage, idle offshore. 24 tankers were spotted in the anchorage area, at least 16 of which are laden with Iranian hydrocarbons, including one Handymax tanker loading approximately 200,000 barrels of Iranian crude oil at Kharg Islands’ T-Jetty. Laden tankers are highlighted in red on the map below. The buildup of tankers anchored here suggests increasing disruption to Iran’s crude export flows due to the ongoing US blockade, particularly shipments destined for China’s independent “teapot” refineries. 

Tankers near Kharg Island, Iran on June 10 (Credit: ESA Copernicus)

Number of Iranian Loadings

Since the outbreak of the conflict, UANI has tracked at least 95 Iranian oil loadings, 48 of which originated from Kharg Island, Iran. These shipments represent approximately 91 million barrels of Iranian oil, generating an estimated revenue of over $7 billion for the IRGC, which continues to fund Iran’s active missile and drone programs central to the conflict. This figure is notably higher than usual given the sharp increase in oil prices, including Iranian crude.

Iran-linked Vessels at Chabahar Port, Iran

Iran-linked vessels are loitering and anchoring outside of the Persian Gulf at Chabahar Port, Iran. On June 10, 15 tankers, including 12 Iran-flagged tankers and three dark fleet vessels, all laden with Iranian oil indicated by the red squares on the image below, as well as 13 cargo vessels, the majority of which are Iran-flagged, were observed in satellite imagery near Chabahar Port. One of the Iran-flagged tankers DALIA (IMO 9820324) is moored in Chabahar Port for unknown reasons. DALIA had previously loaded approximately 330,000 barrels of Iranian Naphtha from Bandar-e Mahshahr on May 31. 

Many of the Iran-flagged and Iranian oil-laden tankers that have attempted to cross the blockade departed from Chabahar Port, with at least eleven of these returning to port in response to a variety of U.S. enforcement actions. Several of the tankers in this anchorage have shifted locations since late May for unknown reasons, which could indicate an attempt to sail out and test the U.S. blockade before returning in response to enforcement actions.

Laden tankers near Chabahar Port, Iran on June 10 (Credit: ESA Copernicus)

Iran-linked Tankers at Jask Port, Iran

There is a growing cluster of tankers just east of Jask, Iran. On June 8, eight tankers were observed in the anchorage, six of them laden with Iranian crude. Four of those six laden tankers had moved from an anchorage inside the Persian Gulf near the Greater and Lesser Tunb islands between May 29 and June 3, despite having remained anchored there for more than a month. The red squares indicate laden tankers and white indicates unladen tankers. 

Iran linked tankers anchored near Jask, Iran on June 8 (ESA: Copernicus)

Iran-linked Vessels near Sri Lanka

Iran-linked tankers have been anchoring about 20 km offshore from Galle, Sri Lanka, likely for logistical support from local service providers but also in response to pressure from the U.S. blockade. On June 5, four Iran-flagged tankers, all unladen, plus six ghost fleet tankers, one of which carrying Iranian crude which is indicated by the red highlight in the map below, were anchored near Galle. The laden tanker DAVINA was interdicted by U.S. naval forces aboard a U.S. Navy expeditionary sea base (T-ESB) on June 5.

Iran-flagged Tankers Globally

UANI has also monitored Iran-flagged tankers operating beyond the Persian Gulf. Since the conflict began, at least 32 Iran-flagged tankers have reached Southeast Asian waters bound for the Eastern Outer Port Limits (EOPL) anchorage off Johor, Malaysia. 

Meanwhile, at least 39 Iran-flagged tankers, reporting empty, have begun attempts to return to Iran and from the Malaysian EOPL anchorage and Southeast Asian sea lanes, since the start of the conflict.

Iran-Oil Laden Tankers off the Malaysian Coast

From February 28, the start of the conflict, to today, UANI has recorded 69 STS transfers of Iranian crude oil and 5 STS transfers of LPG in the EOPL anchorage, a ghost fleet hotspot approximately 70 km off Malaysia’s coast. All of these transshipments have been spotted in satellite imagery.

On June 11, 47 tankers listed on UANI's Ghost Armada were anchored or loitering near the EOPL area with their AIS signals active, demonstrating that ghost fleet tankers continue to operate with impunity across Southeast Asia's sea lanes.

Iran-Flagged Cargo Ships Globally

Despite ongoing pressure of US OFAC sanctions, approximately 40 Iranian flagged vessels continue to operate openly across sea lanes, ports, and anchorages throughout the Indo-Pacific region. Enhanced pressure from the enforcement of the US blockade on Iran and disrupted access to Iranian ports appears to be affecting vessel schedules and operations on a large scale which has contributed to increased instances of ships pausing and waiting in clusters at anchorages across the region.  A new pattern of cargo ships coming from Russian and Libyan ports to Southeast Asia is emerging. There is a growing risk of Iranian flagged cargo ships carrying contraband cargo in violation of US blockade.

Iran-flagged vessels across the Indo-Pacific on June 11 (Credit: Marine Traffic)

Multiple Iranian flagged tankers and cargo vessels continued to anchor offshore of Karachi, Pakistan. The cargo ships ARIES (IMO 9369722), MAHNAM (IMO 9213387), DELRUBA (IMO 9305207) and WARTA (IMO 9465849) were broadcasting on AIS while anchored about 60km offshore in the Pakistani Exclusive Economic Zone (EEZ). The tankers STREAM (IMO 9569633), HERBY (IMO 9362059), SOBAR (IMO 9221970) and SARAK (IMO 9226968) are also anchored nearby. The container ship TOUSKA (IMO 9328900) remained anchored just 16 km outside Karachi port, inside Pakistani territorial waters. All of these Iran-flagged vessels are OFAC sanctioned. At least 9 other non-Iranian flagged Ghost Armada tankers are also anchored in the Pakistan EEZ.

Iran-flagged cargo vessels near Karachi, Pakistan on June 11 (Credit: Marine Traffic)

The Iranian container ship ENZO 2 (IMO 9236652) continued cargo operations in Kadla Port on June 11. Meanwhile, the Iran-flagged container ship ARTENOS (IMO 9283021) remained anchored in the Gulf of Kutch, offshore of Kandla, India. Both cargo ships are OFAC-sanctioned.

Iran-flagged container ships in Indian waters on June 11 (Credit: Marine Traffic)

The Iran-flagged cargo ship AZARGOUN (IMO 9283019) departed Kanda Port on June 8 and continued to sail southward into the Arabian Sea in a circuitous route. Its destination is listed as Colombo, Sri Lanka, with an estimated arrival of June 13. The ship came within 70 km of the Indian coastline. This is the second time an Iranian container ship transiting these waters has used a similar drifting pattern; ARTABAZ followed a similar route in late April.

Iran-flagged container ships in Indian waters on June 11 (Credit: Marine Traffic)

The Iran-flagged container ship ARTABAZ (IMO 9283007) continued to anchor near Uligan Island in the northern most atoll of the Maldives. 

The Iran-flagged general cargo ship PARNIA (IMO 9167265) continued to anchor about 25 km offshore of Galle, in the vicinity of other Iranian-flagged tankers DOWNY (9218480), HALTI (9212890), HAWK (9362061), HELM (9357391) and at least seven other Ghost Armada tankers. The container ship VELON 1 (IMO 9122473) arrived in the vicinity of the southern point of Sri Lanka but continued to sail toward its destination listed as Kandala, India, with an estimated arrival of June 16. All these ships are OFAC Sanctioned. 

Iran-flagged container ships near the Maldives and Sri Lanka on June 11 (Credit: Marine Traffic)

The Iran-flagged general cargo ship AREZOO (IMO 9165786) remained anchored in the vicinity of Chittagong, Bangladesh.

The container ship NYRA 2 (IMO 9241487) transited the Six Degree Channel into the Bay of Bengal, heading west. Its destination is listed as Kandla, India, with an estimated arrival of June 18. Meanwhile, Iran-flagged bulk cargo ship KIAZAND (IMO 9465758) continued to sit at anchor, approximately 35km south of Phuket, just outside Thai territorial waters. 

Iran-flagged cargo ships near Sumatra and near Phuket on June 11 (Credit: Marine Traffic)

The Iranian-flagged bulk cargo ship ROSHAK (IMO 9405966) sailed north in the Malacca Strait, past the vicinity of Port Klang, Malaysia, to its destination at Phuket, Thailand, with an estimated arrival of June 12. Meanwhile, the Iran-flagged container ship NORA (IMO 9259408) remained in port at Port Klang Container Terminal for unknown cargo ops. NORA previously conducted cargo operations in the Libyan port of Misrata on May 23 to 24. The Iran-flagged general cargo ship RADIN (IMO 9820257) also remained anchored outside Port Klang in the Malacca Strait. These Iran-flagged cargo ships are OFAC-sanctioned, ad it is likely that the commercial port operator at Port Klang is openly disregarding the risk of U.S. OFAC secondary sanctions.

Iran-flagged cargo ships at Port Klang, Malaysia, on June 11 (Credit: Marine Traffic)

Six Iran-flagged cargo ships remained in the Malaysian EOPL anchorage area, openly broadcasting on AIS. The cluster of vessels include bulk cargo ships ARVIN (IMO 9193202), MIAMI PRIDE (IMO 9274941), ANDIA (IMO 9193197), and the container ships OURA (IMO 9387815) and ALOR 2 (IMO 9228538).  Meanwhile, the bulk cargo ship BASKAR (IMO 9405942) remained just west of the EOPL and was drifting, for unknown reasons. These vessels are all likely waiting in the EOPL due to the U.S. blockade. All these vessels are OFAC sanctioned.

Iran-flagged cargo ships at the Malaysian EOPL on June 11(Credit: Marine Traffic)

The bulk cargo ship BAHJAT (IMO 9405954) continued sailing north in the South China Sea, to an unspecified destination in China. The three Iran-flagged container ships SHABDIS (IMO 9349588), SHABGOUN (IMO 9346524) and BEHNAVAZ (IMO 9346548) remained anchored in the vicinity of Zhuhai, China. Meanwhile, the Iranian flagged tanker TOUR 2 (IMO 9364112), also known as KARIZ, remained anchored about 70 km south of Hong Kong.

Iran-flagged ships at Zhuhai, Hong Kong China and South China Sea, on June 11 (Credit: Marine Traffic)

Iran-flagged container ship BEHTA (IMO 9349590) remained anchored off Shanghai at the Changjiangkou (CJK) anchorage and the Iran-flagged bulk cargo ship BATIS (IMO 9465760) remained anchored 80km off Yangcheng in the Yellow Sea.