The jack-up drilling rig PROSPECTOR 5 has sunk offshore Gabon following a reported seabed punch-through during preload operations. Of 115 personnel aboard, 110 were accounted for, with subsequent reporting indicating one fatality and four still missing.
1. PROSPECTOR 5 Sinks During Offshore Jack-Up Operations
• Borr Drilling confirmed that PROSPECTOR 5 (IMO 8771813) sank on October 24 at approximately 20:37 local time in the Dussafu Marin licence area, offshore Mayumba, Gabon.
• The 2014-built Friede & Goldman JU-2000E jack-up was preparing for a drilling campaign supporting BW Energy’s offshore operations. Drilling had not yet commenced.
• Preliminary information from Borr Drilling indicates a punch-through during preload, followed by loss of stability and sinking. The precise technical cause remains under investigation.
• Of 115 personnel aboard, 110 were safely accounted for. Borr Drilling’s initial October 25 statement listed five unaccounted for.
• Subsequent Reuters reporting, citing sources familiar with the incident, identified one deceased Indian national and four missing personnel, including three Gabonese nationals. Gabon’s official account continued to list five missing without independently confirming the fatality.
• Gabon’s Ministry of Petroleum and Gas activated a crisis unit, reinforced maritime search efforts with naval support and ordered a technical investigation.
2. Sri Lanka Repatriates 40 Iranian Seafarers From Stranded Vessels
• Sri Lankan authorities coordinated medical assistance and repatriation for 40 Iranian seafarers from commercial vessels offshore Galle, according to the country’s Foreign Ministry.
• Foreign Ministry spokesperson Thushara Rodrigo said the operation followed a humanitarian request from the Iranian Embassy, with seafarers suffering unspecified medical emergencies.
• Reuters reported that the personnel came from 19 ships, were brought ashore at Galle Harbour and returned to Iran early October 25.
• The vessels had been stranded amid restrictions affecting Iranian shipping. Associated Press reported shortages of food, water and fuel among crews offshore.
• The identities of the individual vessels were not released by the ministry. Reports linking the vessels to US sanctions should not be taken as confirmation of each ship’s designation.
3. Black Sea War-Risk Insurance Reaches Reported 15% Upper-End Level
• Black Sea war-risk insurance premiums had reached as much as 15% of vessel hull value amid sustained attacks on merchant shipping and port infrastructure.
• The figure represents a reported upper-end exposure, not a verified single-day premium increase or a standard quotation available to every operator.
• The same reporting identified a heavy concentration of vessel attacks during July to September and growing casualties among merchant seafarers operating near Ukrainian and Russian maritime routes.
• Elevated insurance costs are affecting voyage economics, cargo transport and Ukraine’s grain-export competitiveness, particularly where charterers require access to exposed Black Sea terminals.
• Vessel value, policy conditions, voyage routing, port destination, ownership profile and security exposure remain material to obtaining usable war-risk terms.
4. Russia Claims Two Further Merchant-Vessel Strikes Near Ukrainian Ports
• Russia’s Defence Ministry claimed on October 25 that drones struck a cargo vessel bound for Chornomorsk overnight and another vessel heading toward Odesa later that day.
• Moscow alleged the vessels were involved in supplying Ukraine’s armed forces. Reuters stated it could not independently verify the claims.
• No independently established vessel names, IMO numbers, flags, cargo descriptions, crew casualties or damage assessments were available in the reporting checked.
• The claimed incidents concern two separate cargo-vessel movements. They are not confirmed as a repeat of the previously reported KHORYV casualty off Romania.
• The claims add a fresh security-reporting layer to the Black Sea port approaches, but do not establish that either port was closed or that its navigation arrangements changed.
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Sources
Borr Drilling, BW Energy, Reuters, Associated Press, Financial Times
This update is part of the DeepDraft SITREP series covering developing maritime operational situations.
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