Oil Spill Threatens Oman's Protected Hallaniyat Islands Reserve

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Key takeaways

Oman started containment operations after an oil spill covering 390 sq km threatened its southern coast.
The spill threatens the protected Hallaniyat Islands, an archipelago of 5 islands declared a nature reserve in 2025.
These islands protect endangered Loggerhead sea turtles and an isolated population of Arabian Sea humpback whales.
Rough seas with 4 m waves during the Khareef season are making oil cleanup operations exceptionally difficult.

The Oman Environment Authority launched emergency response operations after an oil spill spread across roughly 390 sq km off southern Oman.
The oil slick began when the Caroline Bezengi, a damaged Russian shadow fleet tanker, ran aground near the protected Hallaniyat Islands.

The Hallaniyat Islands, formerly named the Kuria Muria Islands, form a cluster of 5 islands in the Arabian Sea off southern Oman.
Recognizing their untouched marine ecosystems and rich wildlife, the government declared them a protected nature reserve in 2025.
Administratively, this island group falls under the Dhofar Governorate in southern Oman.
Al Hallaniyya is the largest island in the group and stands out as the only one with permanent human settlement and basic public facilities.

The archipelago features steep limestone cliffs, rocky coastal shores, and vibrant ecosystems made of mixed corals and algae.
It provides one of the most vital nesting sites worldwide for Loggerhead sea turtles, along with significant nesting grounds for Green and Hawksbill turtles.
The surrounding waters shield the isolated, non-migratory population of Arabian Sea humpback whales, as well as active groups of Spinner and Risso dolphins.
The area harbors untouched coral reefs with rich biodiversity, including newly identified endemic corals from the Oculinidae family and large spiny lobster habitats.
Uninhabited islets like Al Qabliyya Island offer safe nesting shelters for seabirds like the Red-billed Tropicbird, Masked Booby, and Audubon's Shearwater.

The massive 390 sq km oil spill directly endangers fragile coral reefs, coastal bird nesting colonies, and rare humpback whales.
Strong monsoon winds and high 4 m waves during the Khareef season complicate cleanup work, forcing response teams to rely on floating booms and skimmers.