50% of UAE Oil Moved by Covert Tankers Poses Environmental Gamble

As governments pledge to phase out fossil fuels, the emergency response to the Iran war shows how deeply the global economy still depends on oil — and how far nations will go to keep it moving, even at the expense of environmental safety. Unlit tankers, ship‑to‑ship transfers and a dominant private fleet operating in the Strait of Hormuz raise the specter of a major spill and undermine the transparency needed for a responsible energy transition.

A few weeks into the Iran war, the United Arab Emirates executed a silent, high-stakes logistics operation that redefined maritime oil transport in the world’s most critical chokepoint. With the Strait of Hormuz under threat, Abu Dhabi turned to covert shuttle runs — deploying supertankers that would transit the waterway stealthily, offload crude to floating storage beyond the conflict zone, and return empty for another load. By the time a US-Iran interim peace deal was inked, the UAE had nearly restored pre-war export flows, and the unlikely hero of this campaign turned out to be Ga-Hyun Chung, the intensely private South Korean shipping magnate whose Sinokor Group had earlier in 2026 embarked on an unprecedented tanker buying spree, positioning itself as the war’s biggest winner in the oil trades.

“

Instead, according to oil analytics firm Vortexa and ship tracking data compiled by Bloomberg, ADNOC quietly contracted Sinokor vessels from at least mid-April.

The operation began shortly after conflict erupted in early 2026. With insurance premiums spiking and many international owners unwilling to send vessels through the Strait, the UAE faced a crisis that could have shut in a significant portion of its 3 million barrels per day of crude exports. Instead, according to oil analytics firm Vortexa and ship tracking data compiled by Bloomberg, ADNOC quietly contracted Sinokor vessels from at least mid-April. The business arrangement looks simple on paper — a short shuttle between loading terminals inside the Gulf and discharge points near Fujairah or other destinations outside the Strait — but the operational execution required tactics usually associated with sanctioned pariahs: tankers frequently turned off their Automatic Identification Systems (AIS) to travel “dark,” often under the cover of literal darkness, and conducted risky ship-to-ship transfers in international waters. By June 2026, nearly half of all Emirati crude shipments were moving on Sinokor-controlled tonnage, a startling concentration that made one shipping group the lifeline for a major OPEC producer.

The commercial logic was compelling for both sides. ADNOC secured a consistent flow of oil even as conventional shipping fled the region. Sinokor, having snapped up second-hand supertankers at depressed prices shortly before the crisis, could now command wartime freight premiums that rates that reportedly generated millions of dollars per shuttle. The stock of available Very Large Crude Carriers (VLCCs) was already tight after Russian sanctions and post-pandemic fleet retirements, giving Sinokor extraordinary pricing power. Shipbrokers cited in the report describe day rates that reached levels not seen since the super-spike of 2020, when floating storage was in high demand. For Chung, a shy operator who rarely speaks to the media, it was the culmination of a bold wager — one that placed his company at the center of a global energy security drama.