Greenpeace warns oil spill in Oman has quadrupled in 48 hours

Greenpeace Middle East and North Africa says satellite analysis shows an oil slick from the grounded tanker Caroline Bzenji has spread rapidly inside Oman’s Hallaniyat Archipelago. The spill now threatens a sensitive marine reserve, with Greenpeace urging immediate containment and an independent damage assessment.

Why it matters: - The spill is now threatening one of Oman’s most sensitive marine ecosystems, including coral reefs, seagrass beds, turtle nesting beaches, migratory seabird sites and habitat for the rare Arabian humpback whale. - Greenpeace says the spread raises the risk of long-term damage to marine life and to the protected waters of the Hallaniyat Archipelago. - The situation could also leave Oman and affected communities with a heavy environmental and financial burden if responsibility for the tanker remains unclear.

What happened: - Greenpeace Middle East and North Africa warned on August 6, 2026, that an oil spill in Oman’s Hallaniyat Archipelago has expanded sharply. - New satellite analysis conducted by Greenpeace Germany shows the slick from the grounded tanker Caroline Bzenji has grown fourfold in 48 hours. - The spill is inside a key marine protected area in southern Oman.

The details: - The tanker was carrying an estimated 800,000 barrels of oil when it ran aground in June, and the leak has continued since then. - Satellite-based estimates show the oil slick covered about 45 square kilometers on July 26. - The affected area grew to 150 square kilometers on August 2. - By August 4, the slick had expanded to about 600 square kilometers in Omani waters. - Images also show large sections of coastline near Al Qibliyah Island affected by oil contamination. - Additional slicks stretched farther offshore. - Greenpeace says the tanker’s legal and operational status creates extra challenges for response efforts. - The organization cited the absence of an accountable owner, uncertainty over insurance coverage, and no flag state taking responsibility.

Between the lines: - The pace of expansion suggests response efforts may be lagging behind the scale of the leak. - Greenpeace’s warning points to a broader risk: when a vessel’s ownership and insurance status are unclear, the cleanup cost and ecological damage can shift to the coastal state and local communities. - The spill’s location inside a protected archipelago makes containment more urgent than in an open-water incident.

What's next: - Greenpeace is calling on Omani authorities and regional and international partners to move immediately to contain the spill and secure the tanker’s cargo. - The group also wants an independent, full assessment of environmental damage. - If additional capacity is needed, Greenpeace says the international community should provide technical experts, equipment and other resources to support Oman’s response.

The bottom line: - A rapidly expanding oil slick inside a protected Omani marine reserve now poses an immediate threat to fragile habitats and could become a costly long-term cleanup problem.**