Malaysia-linked tanker with Iraqi crude nears Johor after high-risk Hormuz transit amid regional tensions
A Malaysia-linked tanker carrying Iraqi crude has entered Singapore waters en route to Johor, marking a rare successful transit through the Strait of Hormuz amid heightened geopolitical tensions.
- Malaysia-linked tanker Ocean Thunder entered Singapore waters on 17 April 2026 en route to Johor.
- Vessel carried one million barrels of Iraqi Basrah Heavy crude after Hormuz transit.
- Only a few ships cleared passage amid United States–Israel–Iran tensions.
JOHOR, MALAYSIA: The Malaysian-linked crude oil tanker Ocean Thunder entered Singapore waters on 17 April 2026 as it approached its final destination in Pengerang, Johor.
The vessel is expected to berth at the Pengerang Integrated Petroleum Complex once port traffic and regulatory clearance are granted. Discharge operations are anticipated shortly after arrival.
Shipping data shows the Panama-flagged tanker travelling at 5.2 knots on a 85.6-degree course toward Pengerang.
The Ocean Thunder is carrying approximately one million barrels of Iraqi Basrah Heavy crude.
The cargo is destined for refining at Petronas-operated facilities in Pengerang.
The tanker is chartered by Petco, a unit of Petronas, and forms part of a limited group of vessels linked to Malaysia that have secured passage through a highly volatile maritime corridor.
Basrah Heavy crude is a dense, high-sulphur grade typically processed in complex refineries to produce higher-value petroleum products.
High-risk Hormuz crossing
The tanker’s arrival follows a high-risk journey that began in Iraq in early March.
It departed Al Basrah Port on 3 April 2026 and transited the Strait of Hormuz on 5 April 2026.
The strait remains a critical chokepoint for global energy flows, handling about 20 per cent of the world’s crude oil and gas shipments.
Passage through the route has been severely disrupted following continued military tensions involving the United States, Israel and Iran since 28 February.
Only a small number of Malaysia-linked vessels have completed the crossing in recent weeks.
The Ocean Thunder is understood to be among those granted clearance after diplomatic engagements.
Regional shipping constraints
According to available shipping data, only one other Malaysia-bound tanker, the Serifos, has successfully completed a similar transit since tensions escalated.
The Serifos, a Liberia-flagged very large crude carrier, is expected to arrive at Port Klang on 21 April 2026. It is carrying crude loaded from Saudi Arabia and the United Arab Emirates.
The vessel is chartered by Thai state-owned energy firm PTT and is also among seven ships for which Malaysia sought transit clearance from Iran.
Malaysian Communications Minister Fahmi Fadzil said earlier that five Malaysia-linked vessels remain in the Strait of Hormuz. These involve assets connected to Petronas, MISC Bhd, Sapura Energy and Shapadu Corporation Sdn Bhd.
Built in 2009, Ocean Thunder previously linked to sanctions evasion for transporting Russian crude oil in 2023–2024 in violation of G7/EU restrictions, with ties to a UK-sanctioned Turkish operator.
It appears on Ukraine's war sanctions watchlist as part of Russia's "shadow fleet," though it has not been formally sanctioned internationally.
