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VLCC
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VLCC

200,000-320,000 DWT supertanker carrying 20% of global crude; hit hardest by Hormuz closure and CENTCOM blockade.

A single VLCC's Gulf war-risk insurance bill climbed sharply in mid-July 2026 after two supertankers were disabled in Omani waters, adding millions of dollars to the cost of one voyage and reversing six weeks of calm since the spring Hormuz peak.

Last refreshed: 20 July 2026 · Appears in 2 active topics

Key Question

Seven supertankers are waiting at Chabahar outside the blockade — what happens when they decide to move?

Timeline for VLCC

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Background

A Very Large Crude Carrier is a tanker of 200,000 to 320,000 deadweight tonnes, purpose-built for long-haul crude oil transport. The class emerged in the late 1960s as oil majors sought economies of scale on routes from the Persian Gulf to refineries in Asia, Europe and North America. Today roughly 800 VLCCs carry approximately 20% of global crude supply, making them the arterial vessels of the international oil trade. Their size prevents transit through the Panama Canal and requires deep-water ports, concentrating their routes through a small number of chokepoints, chief among them the Strait of Hormuz.

VLCCs are simultaneously indispensable and indefensible: their sheer size prevents rapid rerouting, yet no navy has committed to escort protection at scale for commercial tankers. Russian shadow-fleet operators have exploited the same class and much of the same transit infrastructure to move sanctioned crude, making the VLCC the fulcrum of both the Hormuz crisis and the sanctions-evasion debate running in parallel across the Iran and Russia-Ukraine conflicts.

Key Issues
Hormuz freight risk

Tanker rates reprice as strikes return

A single VLCC carries roughly two million barrels, and its owner insures cargo and hull separately from whatever freight rate the route itself commands. Marine war-risk cover, quoted as a share of a ship's insured hull value, ticked sharply higher in mid-July after two supertankers were disabled in Omani waters, adding several million dollars to the cost of sending one vessel through the Gulf compared with the calm weeks that had preceded it. For an owner chartering out a single hull, that premium is paid before a barrel is loaded, on top of the freight itself.

The class has been here before: Charter rates for a VLCC quadrupled to $800,000 a day at the March peak of the closure, and war-risk premiums alone ran $3.6-6 million a voyage, figures that eased through June as Asian demand thinned before this month's reversal. Each spike falls on the same fixed cost base, a vessel that costs roughly the same to crew, fuel and insure whether it sails empty or full, so every added dollar of war-risk premium comes straight off the voyage's margin.

Common Questions

Reference

What is a VLCC tanker?
A Very Large Crude Carrier (VLCC) is a supertanker of 200,000 to 320,000 deadweight tonnes, used for long-haul crude oil transport. About 800 VLCCs carry approximately 20% of global crude supply. They are too large for the Panama Canal and depend on deep-water ports, making their routes sensitive to chokepoints such as the Strait of Hormuz.Source: event
How high did Gulf VLCC war-risk insurance rise in July 2026?
Gulf hull war-risk cover widened to 3-10% of hull value on 17 July 2026, with 5% becoming the market norm, up from a 3-4% baseline in late June. On a $100m VLCC that is around $5m a voyage against roughly $250,000 before the war.Source: event
What is the East-West oil arbitrage and why does it matter?
The East-West arb refers to the trade of loading Atlantic-basin crude onto VLCCs and shipping it east to Asia. It is economically viable when the Brent-WTI spread is above roughly $4. In late May 2026 that spread compressed to $1-2 as WTI caught up to Brent on the Iran MOU, making the round-trip trade marginal.Source: event
How much does it cost to charter a VLCC in 2026?
Charter rates for Very Large Crude Carriers peaked at WS458.75 (TD3C route) on 11 May 2026, a daily round-trip TCE of $462,102, compared with pre-war levels. War-risk premiums added $3.6-6 million per voyage through the Strait of Hormuz. Rates round-tripped through June and July, printing WS372 on 17 July 2026.Source: event
Why are VLCCs routing via Chabahar instead of Hormuz?
By 20 April 2026, seven VLCCs were detected near Chabahar on Iran's Makran coast, which sits outside US interdiction zones, while only three vessels transited Hormuz that day. Chabahar offers an emerging non-Hormuz outlet for Iranian-linked crude moving toward Asian markets.Source: Windward / Lowdown
What is the difference between a VLCC and a shadow fleet tanker?
A VLCC is a vessel class defined by size (200,000-320,000 DWT). shadow fleet tankers are vessels operating outside Western insurance and regulatory frameworks to evade sanctions; they can be VLCCs or smaller. Sovcomflot reflagged 56% of its fleet to avoid EU seizure, using VLCC-class ships in both legitimate and shadow trades.Source: Windward / EU
Has any country committed warships to escort VLCCs through Hormuz?
No. All five countries Trump named for a Hormuz escort Coalition, Australia, Japan, the UK, Germany, and France, formally declined within 72 hours. A subsequent G7-adjacent joint statement expressed readiness to contribute but named no ships, no timeline, and no specific commitments.Source: Lowdown
How are Russian oil tankers connected to the Hormuz crisis?
Russia's Sovcomflot and affiliated shadow-fleet operators use VLCC-class tankers reflagged to the Russian registry to transport Russian crude to Asian buyers outside Western sanctions. The same AIS-suppression and flag-change tactics Iran uses have been adopted by Russian-linked operators, making VLCC tracking central to both the Iran conflict and Russia-Ukraine sanctions enforcement.Source: Windward / EU Council
How much does it cost to ship oil through the Strait of Hormuz now?
Charter rates for VLCCs quadrupled to $800,000 per day in 2026, and war-risk premiums added $3.6 to $6 million per voyage. The IRGC imposed transit tolls of up to $2 million per VLCC on top of these costs.Source: Lloyd's List / shipping brokers
Source Material
Very Large Crude Carrier — Wikipedia