According to reports from Ukrinform and ISW, Ukraine's Unmanned Systems Forces targeted and eliminated 18 Russian oil installations within Russia and occupied Ukrainian regions throughout May 2026. This operation focused on fuel depots, refining facilities, and storage locations crucial for Russian frontline logistics. These attacks form part of Ukraine's larger strategy to diminish Russian combat capabilities right at the source, enhancing the mid-range drone operations that are already disrupting ground communication routes from Luhansk to Crimea.