By Jonathan Saul and Catherine Cartier
LONDON, Aug 12 (Reuters) – A vast oil spill from a leaking tanker has started to hit Oman’s coastline, its environment agency confirmed on Wednesday, in what threatens to become one of the world’s worst in years after spreading largely unchecked for weeks.
The oil could end up impacting 40 km (25 miles) of coast near Ras Madraka as well as Masirah Island, the agency said.
The slick now covers an area of more than 2,000 square km, said John Amos, an oil spill specialist who reviewed satellite imagery obtained by Reuters.
MARINE NATURE RESERVE THREATENED
The Caroline Bezengi tanker, carrying an estimated 800,000 barrels of Russian oil and under international sanctions, ran aground on June 30.
It is leaking near an island that is part of an Omani marine nature reserve that is home to wildlife including Arabian Sea humpback whales and Socotra cormorants.
The tanker first reported difficulties off Yemen on June 8 after what maritime sources said appeared to be a blast.
No party has claimed an attack, but the vessel was navigating two separate wars on its journey from Russia to India.
In April it sailed from the Russian port of Novorossiysk on the Black Sea, a flashpoint in the Russia-Ukraine war. Ukraine has carried out assaults on a so-called shadow fleet carrying Russian oil, which the Caroline Bezengi is part of.
It then passed through the Suez Canal at the end of May, ship-tracking data shows, before sailing past Yemen, where the Iran-aligned Houthi militants have entered a wider regional war between the United States, Israel and Iran.
‘ACT OF WAR’ COMPLICATES CLEAN-UPA web of complex war- and sanctions-related rules governing shipping and oil spills is already hampering efforts to respond and could yet get in the way of halting an impending disaster, insurers and analysts say.
The IOPC Funds, an intergovernmental agency dealing with tanker spills compensation, told Reuters it would not be involved in clean-up costs because the incident was being treated as an “act of war” rather than a simple accident.
The 25-year-old tanker is also not insured by any recognised Western insurance provider.
“A nightmare scenario is there’s no adequate response to keep the worst from happening,” said the oil spills specialist Amos, CEO of SkyTruth, a nonprofit organisation aiming to strengthen environmental conservation through the use of satellite images.
Amos said that in this case, the vessel would “continue to break up under the steady onslaught of wind and waves and to lose the entire cargo and that could be a spill upwards of 40 to 50 million gallons.”
Amos said this would rival the 1989 Exxon Valdez oil spill in sheer size.
The ship is similar in size and capacity to the Sanchi, an Iranian ship that collided with a freighter off China in 2018 in the world’s worst oil tanker disaster in decades.
SLICK SPREADING RAPIDLY
The U.N.’s International Maritime Organization said that seasonal monsoon conditions had limited access to the tanker and delayed salvage operations.
“Oil spill contingency planning is in place,” an IMO spokesperson told Reuters.
Oman said on Monday the slick covered almost 400 square km. It has not elaborated on the containment efforts, but said it had used booms to try to stem the spread.
Environmental agencies and oil spill specialists estimated its size as far larger, noting the spread has accelerated dramatically since the beginning of August.
“The affected area went from around 45 square km by the end of July, to 150 at the beginning of August. And then within two days, it quadrupled to 600 by the 4th or 5th of August,” said Hanen Keskes, political campaigns lead for Greenpeace in the Middle East.
SkyTruth’s Amos said that measures required, beyond the use of booms, included stabilising the tanker and transferring whatever crude oil was left onboard to another vessel.
“The longer we wait, the more damaged and decrepit that tanker gets, the more complicated and difficult and potentially dangerous that salvage operation is going to be,” he said.
(Reporting by Jonathan Saul in London, Catherine Cartier in Beirut, Kate Abnett in Brussels, Dmitry Zhdanikov in London, Imad Creidi in Dubai; additional reporting by Ahmed Tolba in Cairo; writing by John Davison; editing by Alison Williams and Jason Neely)
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