U.S. response under scrutiny after Iran seizes oil tanker

Tehran's recent seizure of a U.S.-bound oil tanker could have a significant impact on regional trade flows and marine insurance premiums. Industry analysts wonder about Washington's response and whether tensions will escalate.

Share:

Comprehensive energy news coverage, updated nonstop

Annual subscription

8.25£/month*

*billed annually at 99£/year for the first year then 149,00£/year ​

Unlimited access • Archives included • Professional invoice

OTHER ACCESS OPTIONS

Monthly subscription

Unlimited access • Archives included

5.2£/month*
then 14.90£ per month thereafter

FREE ACCOUNT

3 articles offered per month

FREE

*Prices are excluding VAT, which may vary depending on your location or professional status

Since 2021: 35,000 articles • 150+ analyses per week

Industry analysts believe that Washington’s response to Tehran’s recent seizure of a U.S.-bound oil tanker will determine whether regional trade flows will be disrupted and marine insurance premiums will rise.

The Marshall Islands-flagged tanker Advantage Sweet was seized in transit in international waters in the Gulf of Oman on April 27 at about 1:15 p.m., according to the U.S. Navy. S&P Global Commodities at Sea data showed the Suezmax headed to Houston after loading 550,000 barrels of Eocene crude and 200,000 barrels of Kuwait Ratawi crude for Chevron.

Iranian retaliation after the Suez Rajan affair

The Financial Times reported that Iran’s move could have been triggered by the implementation of sanctions by the U.S. authorities, involving the detour of the Iranian oil tanker Suez Rajan, bound for China, to the United States.

The White House, the State Department and the U.S. Department of Justice declined to comment on the Suez Rajan case. In recent years, Iran has on occasion stopped commercial vessels in retaliation for what it perceived as Western hostilities. Some countries’ naval forces would escort their tankers in response.

Impact on the market

Andrew Wilson, head of research at BRS, said insurance premiums in the region have not increased as a result of the Advantage Sweet seizure, but “if tensions continue…they will surely increase.” “In the meantime, it appears that the presence of Western warships in the region will increase, which should give some degree of comfort to tanker owners whose vessels operate in the region,” Wilson added.

Platts, an affiliate of S&P Global Commodity Insights, assessed the VLCC rate for the 270,000 metric ton Arabian Gulf shipment to China at $13.69/mt on May 2, unchanged since April 27. Despite quarters of negotiations, Washington and Tehran have failed to revive an international nuclear deal to lift sanctions on Iranian oil exports, but Iran has been gradually increasing shipments abroad. According to S&P Global Commodities at Sea, Iran’s crude and condensate exports reached 1.04 million barrels per day in March, compared to a monthly average of 950,200 bpd in 2022.

The US oil giant beat market forecasts in the third quarter, despite declining results and a context marked by falling hydrocarbon prices.
The French group will supply carbon steel pipelines to TechnipFMC for the offshore Orca project, strengthening its strategic position in the Brazilian market.
The American oil major saw its revenue decline in the third quarter, affected by lower crude prices and refining margins, despite record volumes in Guyana and the Permian Basin.
Gabon strengthens its oil ambitions by partnering with BP and ExxonMobil to relaunch deep offshore exploration, as nearly 70% of its subsea domain remains unexplored.
Sofia temporarily restricts diesel and jet fuel exports to safeguard domestic supply following US sanctions targeting Lukoil, the country’s leading oil operator.
Swiss trader Gunvor will acquire Lukoil’s African stakes as the Russian company retreats in response to new US sanctions targeting its overseas operations.
An agreement between Transpetro, Petrobras and the government of Amapá provides for the construction of an industrial complex dedicated to oil and gas, consolidating the state's strategic position on the Equatorial Margin.
The US company reported adjusted earnings of $1.02bn between July and September, supported by the refining and chemicals segments despite a drop in net income due to exceptional charges.
The Spanish oil group reported a net profit of €1.18bn over the first nine months of 2025, hit by unstable markets, falling oil prices and a merger that increased its debt.
The British group’s net profit rose 24% in Q3 to $5.32bn, supporting a new share repurchase programme despite continued pressure on crude prices.
Third-quarter results show strong resilience from European majors, supported by improved margins, increased production and extended share buyback programmes.
Driven by industrial demand and production innovations, the global petrochemicals market is projected to grow by 5.5% annually until 2034, reaching a valuation of $794 billion.
CNOOC Limited announced continued growth in oil and gas production, reaching 578.3 million barrels of oil equivalent, while maintaining cost control despite a 14.6% drop in Brent prices.
Oil sands production in Canada continued to grow in 2024, but absolute greenhouse gas emissions increased by less than 1%, according to new industry data.
Argentina seeks to overturn a U.S. court ruling ordering it to pay $16.1bn to two YPF shareholders after the 2012 partial expropriation of the oil group.
The United States has issued a general license allowing transactions with two German subsidiaries of Rosneft, giving Berlin until April 2026 to resolve their ownership status.
An independent report estimates 13.03 billion barrels of potential oil resources in Greenland’s Jameson Land Basin, placing the site among the largest undeveloped fields globally.
Impacted by falling oil prices and weak fuel sales, Sinopec reports a sharp decline in profitability over the first three quarters, with a strategic shift toward higher-margin products.
Citizen Energy Ventures enters the private placement market with a $20mn fund to develop eight wells in the Cherokee Formation of Oklahoma’s historic Anadarko Basin.
US crude stocks dropped by 6.9 million barrels, defying forecasts, amid a sharp decline in imports and a weekly statistical adjustment by the Energy Information Administration.

All the latest energy news, all the time

Annual subscription

8.25£/month*

*billed annually at 99£/year for the first year then 149,00£/year ​

Unlimited access - Archives included - Pro invoice

Monthly subscription

Unlimited access • Archives included

5.2£/month*
then 14.90£ per month thereafter

*Prices shown are exclusive of VAT, which may vary according to your location or professional status.

Since 2021: 30,000 articles - +150 analyses/week.