Ukraine’s General Staff said its forces carried out a strike on an offshore rig run by Lukoil PJSC at the Filanovsky field, located in the Caspian Sea.
In a statement on Telegram on Saturday, the General Staff said the attack took place on 19 December 2025. It added that specialists were still assessing whether the facility could continue operating and how severe the damage was. A Russian military vessel patrolling near the site in the Caspian Sea was also said to have been hit.
The claims could not be independently checked by Bloomberg, and Lukoil did not give an immediate reply.
Earlier in the week, Ukrainian drones had struck the Grayfer field, another Lukoil-operated site in the Caspian Sea, causing damage to a gas production platform offshore.
Kyiv has been increasing attacks on Russian energy infrastructure — from refineries and offshore platforms to sea terminals and tankers — in an effort to cut the revenue that helps fund Moscow’s war. Russian forces, meanwhile, have been hitting infrastructure targets across Ukraine as temperatures drop.
Late on Friday, Russia struck Odesa, a southern Ukrainian port, leaving seven or more people dead, Ukraine’s Vice Prime Minister Oleksiy Kuleba said on Telegram. He said a ballistic missile hit facilities at the port.
Separately, Kirill Dmitriev, a Kremlin envoy, is due to travel to Miami this weekend for talks with US officials on a possible peace deal.