Record Tanker Rates Cripple U.S. Crude Oil Flows to Asia

Record tanker rates have made the delivered cost of U.S. crude in Asia far less competitive. The problem is not a lack of American oil. It is the extraordinary expense of moving that oil across a long ocean route. Freight now absorbs much of the barrel’s value, so refiners look for closer supplies instead.

The clearest example is the U.S. Gulf Coast-to-China route. Shipping costs reached as high as $80 million earlier this month, compared with a long-standing average around one-tenth of that level. This week, a supertanker still cost about $60 million. Valero’s Randy Hawkins said the freight component averaged $30-$35 per barrel, versus about $5 in 2025.

Asian refiners have responded by sharply reducing November purchases from the United States. Orders fell about 50% from September, to roughly 25 million barrels. If that pace continues, November could bring Asia its lowest U.S. crude volumes in seven years. Middle Eastern and nearby European barrels therefore become more attractive.

VLCC means very large crude carrier. It is a supertanker designed to transport large crude-oil cargoes over major international routes. These ships matter because global oil trade depends on enough large vessels being available where cargoes need to move. A shortage can raise freight costs even when crude itself is available.

The article highlights the U.S. Gulf Coast-to-Asia route, where a VLCC carries crude across a long distance. It also describes about 80 VLCCs working in the Gulf of Oman shuttle fleet. Their average round voyage takes 23 days, compared with an optimal nine to ten days for the Basrah-to-Sohar route.

Those inefficient voyages remove ships from other markets. High rates for Persian Gulf and Gulf of Oman cargoes then attract even more tankers into Middle Eastern trade. Fewer ships remain for U.S., African, and other routes, pushing freight higher and changing which crude supplies refiners can afford.

The increase is extraordinary. The cost of shipping crude from the U.S. Gulf Coast to China reached as high as $80 million earlier this month. That was about ten times the average tanker rate maintained for years before the Iran war. Rates later eased, but remained near $60 million for a supertanker this week.

Valero executive Randy Hawkins expressed the increase in barrel terms. He said moving a VLCC from the Gulf Coast to Asia averaged about $30-$35 per barrel, compared with roughly $5 per barrel in 2025. The added freight makes distant U.S. barrels much harder for Asian refiners to justify.

Purchases show the response. Asian refiner orders for U.S. crude fell by about 50% from September, reaching approximately 25 million barrels for November delivery. Vessel-tracking analysts said continued weakness could make November Asia’s lowest U.S. crude volume in seven years.

Ship-to-ship transfers move oil outside the Strait of Hormuz, mainly in the Gulf of Oman. But the process has created long queues and inefficient voyages. Tankers spend weeks waiting for transfers, rather than quickly loading, delivering, and returning for another cargo. That reduces the effective supply of ships.

The Gulf of Oman shuttle fleet has grown to about 80 VLCCs. Kpler says its average round-voyage time has reached 23 days. The optimal round trip from Basrah in Iraq to Sohar offshore Oman would take only nine to ten days. The difference represents many extra days when each vessel cannot serve another route.

This lost capacity affects the wider market. VLCCs become scarce for trades such as U.S. Gulf Coast-to-Asia shipments. Exceptionally high Middle Eastern freight rates also lure more ships into the risky regional trade. The result is a global tanker shortage, higher freight costs, and disrupted crude flows.

Higher tanker rates change the delivered price of crude. A barrel from a distant supplier may look competitive at the source, but its final cost rises sharply after transport. Refiners therefore seek barrels that travel shorter distances or arrive with freight arrangements that limit their exposure.

Asian buyers are turning to more Middle Eastern crude and purchasing it on a delivered basis. That approach reduces the buyers’ direct burden from soaring tanker costs. Middle Eastern supplies also serve the region more directly than crude shipped from the U.S. Gulf Coast. Meanwhile, European refiners are choosing nearby volumes within Europe because long voyages have become much more expensive.

This shift is changing regional demand and crude premiums. Increased demand for European and Middle Eastern grades has pushed up premiums on some supplies. Dated Brent reached a record $20-per-barrel premium to Brent, while Johan Sverdrup reached $24. Distant African and U.S. grades have faced the opposite pressure.

Shipping is part of the price a refiner effectively pays for crude. When freight rises, a distant barrel becomes less attractive unless its seller cuts the price. At the same time, buyers compete more intensely for nearby supplies, allowing those grades to gain premiums. Freight therefore changes relative values between crude grades.

The article gives a sharp contrast. Dated Brent reached a record $20-per-barrel premium to Brent, and Norway’s medium-sour Johan Sverdrup reached $24. West African crude, however, suffered record-low discounts, with some grades reaching minus $20 per barrel. The discounts help compensate buyers for expensive transport to Asia.

U.S. grades are also under pressure. WTI at the Midland East Houston hub fell to a $0.25-per-barrel premium, from more than $3 in early September. Mars crude’s premium dropped to $6 from $17.50. These price changes show sellers absorbing freight costs to keep distant barrels moving.

Shipping determines whether a crude supplier is economically competitive at the refinery gate. Buyers do not compare only the price at the producing region. They also consider the cost and availability of tankers. When freight is stable, distant supplies can compete normally. When freight spikes, transport can outweigh the original price difference.

The article shows this through U.S. Gulf Coast crude. Freight to Asia averaged around $5 per barrel in 2025, but now averages approximately $30-$35. Tanker costs to China reached $80 million earlier this month. Asian refiners consequently reduced U.S. orders and sought Middle Eastern crude, while European refiners favored nearby regional barrels.

These changes reshape global pricing. Nearby grades gain premiums as demand rises. African and U.S. grades need wider discounts to offset long-voyage freight. Sellers may lower prices, but the article indicates that the shipping crisis has already caused severe dislocations in crude pricing and trade patterns.