Hormuz Shuttles Keep Oil Flowing, But at a Steep Cost

Ship-to-ship transfers are circumventing the Iran war's closure of a critical chokepoint, but insurance premiums and freight rates are consuming a quarter of crude's value—pushing refined product shortages to crisis levels.

Seven months into the Iran conflict, oil is still moving through the Strait of Hormuz, but through an increasingly expensive workaround. Gulf producers, facing a shortage of tankers willing to risk the strait, have adapted: smaller shuttle vessels carry crude from Gulf terminals to the safety of the Gulf of Oman, where it transfers ship-to-ship onto larger carriers bound for Asia. The system has expanded rapidly—ship-to-ship transfers are expected to handle roughly 2.5 million barrels per day in September, up from 1.4 million in August, representing about 40% of current Hormuz flows. ADNOC pioneered this method in April; Saudi Aramco and other regional producers have since adopted it. The shuttle strategy has kept UAE oil exports on track to exceed 2025 averages. The cost tells the story. Transporting a supertanker through Hormuz now runs about $20 million, including insurance and war-risk premiums, or roughly $10 per barrel—turning profitable only because Gulf producers are selling at heavy discounts ($50-$60 per barrel) desperate to reach the market. Bench mark freight rates for crude to China have surged above $30 per barrel, the highest on record. Overall tanker charter rates hit $1 million per day for the first time, driven by extreme scarcity as shipowners demand unprecedented risk compensation. The crisis is deepening for refined products. While crude supplies have recovered through alternative routes and STS transfers, refined product shipments have not. Moving gasoline or diesel through Hormuz on smaller tankers costs up to $50 per barrel—commercially unviable. The result: diesel crack spreads have widened to $80 per barrel, compared to a normal $20, signaling acute global fuel scarcity. Consumer prices for diesel have reached $6 per gallon, up 60% from before the war. Even as crude oil markets look bearish thanks to Hormuz flows, gasoline and diesel remain in critical shortage worldwide.

How could this affect you

Traced by who's actually in the path of this — not everyone is.

Direct

Refineries and fuel importers in Asia and Europe

Ship-to-ship transfers absorb $10-50 per barrel in additional freight, compressing margins. Refined products cannot move through Hormuz at viable costs, forcing refiners to pay spot premiums for fuel or reduce output, driving consumer energy prices higher.

Likely

Shipping companies and vessel owners

Tanker charter rates topping $1 million per day and STS transfers creating a new bunkering-like service means profitable but capacity-constrained opportunities; however, rates unsustainable if risk premiums decline.

Likely

Economies dependent on diesel imports (India, Southeast Asia, Africa)

Diesel shortages and $80 per barrel crack spreads force governments to ration fuel or cut industrial activity. Emerging markets bear the burden as price-sensitive demand adjusts downward.

Possible

Oil-producing states seeking to maintain market access

STS operations allow crude exports to continue, but at steep capital costs (tanker deployments, coordination) and tight margins. Long-term viability depends on whether Hormuz remains disrupted or risk premiums decline.

Off-Lens

Who is covering this — and who is not.

3 articles · 2 countries · via GDELT

🇮🇳India

67%

🇬🇧United Kingdom

33%

🇮🇳economictimes.indiatimes.com 🇬🇧reuters.com 🇮🇳urbanacres.in

Perspectives not in sources

🇦🇪 United Arab Emirates🇮🇷 Iran🇸🇦 Saudi Arabia

Analysis

Coverage of Hormuz shuttles has been heavy from energy outlets, particularly Bloomberg and maritime trade press. However, a notable framing gap exists: Western and Indian outlets emphasize the shipping logistics and price impacts on consumers in Asia and Europe, while there is sparse reporting from or about Omani perspectives on the militarization of its coastal waters (shuttle transfers operating under US military escort) and Oman's own negotiations with Iran over a permanent transit fee framework. The story is also told predominantly as a supply-side and cost-side narrative (how oil keeps moving, how expensive it is) with limited coverage of the demand-side crisis: the acute diesel shortage driving power cuts and rationing in emerging economies, which is being covered in energy publications but rarely linked to Hormuz shuttle operations in mainstream news. This creates an inverted emphasis—readers hear about shipping costs and supertanker rates but not about fuel rationing in India or Southeast Asia, where the crisis's actual human impact is largest.

Chanakya's Move

Whose move this was, what they're betting on, what could counter it.

The shuttle system is a tactical workaround, not a strategic solution. Its architects—ADNOC and now Saudi Aramco—are accepting margin compression ($10-20 per barrel) to maintain market presence and prevent prices from spiking beyond $110 (which would trigger political pressure on Iran and the US). The real cost is borne elsewhere: shipping companies capture $1 million/day premiums while refineries and emerging economies absorb fuel scarcity. Iran's closure of the strait, whether intentional or de facto, has morphed into a new equilibrium that locks in both disruption risk and higher energy costs. The move that matters next: whether the US or other parties can either restore free transit or, as Iran and Oman are now discussing, formalize a fee regime that stabilizes expectations. Until then, STS transfers are a market concession—not a market solution.