Ukraine's military conducted a drone strike on August 18, 2025, targeting the Nikolskoye oil pumping station in Russia's Tambov region. This attack suspended oil supplies via the Druzhba pipeline, a key conduit for crude oil to parts of Central Europe, including Hungary and Slovakia. The operation was carried out by Ukraine's 14th UAV regiment. Following this, Ukraine intensified its campaign against Russian energy infrastructure. On the night of August 20-21, Ukrainian drones attacked the Novoshakhtinsk oil refinery in Rostov Oblast, the largest refinery in southern Russia, causing large fires and multiple explosions visible for dozens of kilometers. Concurrently, Russian forces launched retaliatory strikes overnight targeting Ukrainian energy facilities, military industry sites, and airfield infrastructure. Among these, Russia struck a gas compressor station in eastern Ukraine, a critical facility for gas storage. Additionally, Russian drone strikes caused a major fire at a fuel and energy site in Odesa, Ukraine. Both sides continue to target each other's energy infrastructure as part of ongoing hostilities.