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Five Missing as Borr Drilling Rig Sinks Off Gabon in Punch-Through Incident

Search and rescue operations continue for five workers after the Prospector 5 jack-up rig sank during pre-drilling.

Borr Drilling
Search and rescue teams continue efforts to locate five missing workers after the Prospector 5 rig sank off Gabon.

Search and rescue teams are still combing the waters off Gabon’s coast after a drilling rig sank on October 24, leaving five workers missing. The Prospector 5, a jack-up rig built in 2014 and operated by Borr Drilling, capsized at around 8:37 p.m. local time during pre-drilling operations.

Out of the 115 people aboard, 110 were rescued and taken ashore for medical evaluation. The rig was under contract to BW Energy for a planned drilling campaign at the Dussafu Marine license but had not yet started drilling when the incident occurred.

Cause of the Sinking: Borr Drilling

Initial reports indicate the rig experienced a punch-through, a dangerous event where one or more of its legs suddenly break through unstable seabed layers. This can cause a rapid loss of balance, which appears to have led to the rig’s sinking. The vessel was performing jacking operations to prepare for drilling when the accident happened.

Bruno Morand, CEO of Borr Drilling, stated that the company’s priority remains the rescue effort and supporting those affected. Gabonese authorities have launched an investigation to determine the exact cause of the incident.

Ongoing Search and Environmental Impact

As of October 26, search teams, including Gabon’s navy, continue efforts to locate the five missing workers. Borr Drilling has activated its emergency response team and is working closely with local authorities and BW Energy to coordinate the operation.

The Gabonese government confirmed no environmental damage or pollution from the sinking. Production at BW Energy’s nearby MaBoMo facility remains unaffected, as the rig had not yet begun operations.

NJ Ayuk, Executive Chairman of the African Energy Chamber, expressed solidarity with the missing workers and their families, offering support on behalf of the continent’s energy sector.

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