53 Days After Blast, Oil Spill Spreads in Protected Omani Waters

Al-Qibliyyah island is part of a sensitive marine protected zone in Oman’s Dhofar Governorate, an area rich in biodiversity that supports artisanal fishing communities and endangered species. When a dark, spreading oil slick appeared in recent satellite views, environmental scientists immediately recognized the signature of a hull breach—one that has turned a sanctioned tanker into a slow-motion ecological threat. For climate and conservation watchers, this spill is not an isolated accident but a consequence of the shadow fleet’s unregulated drift across the world’s oceans.

A sanctioned tanker from the so-called 'shadow fleet' is leaking crude oil off the coast of Oman, with satellite imagery showing the spill spreading over several weeks and threatening a protected marine area. The incident highlights the growing environmental and operational dangers posed by a vast network of aging, poorly maintained vessels that operate outside international regulatory and insurance norms to transport sanctioned cargo, particularly Russian oil. The Caroline Bezengi, a tanker under European Union and United Kingdom sanctions for alleged involvement in carrying Russian fuels, took on a load of Russian crude at the Black Sea port of Novorossiysk before heading south. On June 8, 2026, while off the southern Yemeni port of Mukalla, the vessel reported difficulties; two maritime security sources indicate an initial assessment pointed to a blast onboard. Since that time, the ship has drifted or been left unattended, and by mid-July, satellite images captured the first signs of an oil slick. By July 28, a Planet Labs image showed a dark slick near the vessel and lighter patches spread north toward al-Qibliyyah island, a site within a designated marine protection area in Oman's Dhofar Governorate. Remote sensing specialist Wim Zwijnenburg of the Dutch peace organization Pax, after reviewing the imagery, concluded that at least one hull appears breached and that crude oil is actively leaking. The region is currently in its monsoon season, which typically peaks in July and August; severe weather could rapidly spread the oil, significantly complicating any response efforts.

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The Caroline Bezengi, a tanker under European Union and United Kingdom sanctions for alleged involvement in carrying Russian fuels, took on a load of Russian crude at the Black Sea port of Novorossiysk before heading south.

The shadow fleet has emerged as a critical but opaque element of global energy logistics. These vessels, often older, with opaque ownership and questionable insurance, are deployed to circumvent Western sanctions imposed after Russia’s invasion of Ukraine. Their role is to keep Russian oil flowing to willing buyers, but their maintenance, safety records, and environmental safeguards are frequently substandard. The Caroline Bezengi, listed under Shanghai-based Rentoor Shipmanagement, is emblematic: a vessel moving sanctioned cargo, with its owner unresponsive to media inquiries and Omani authorities failing to respond to requests for comment. This lack of accountability is a defining feature of the shadow fleet, which operates in a regulatory gray zone, making spills like this one not only a national concern for Oman but an international maritime security problem.