BBC News reports Ukrainian drone attacks on the Bashneft-Novoil refinery 1,300 km inside Russia on 5 August and fires at the Slavneft-Yanos site in Yaroslavl, with 93 drones shot down and hits on Black Sea vessels. All claims trace to a single source with no independent confirmation of operational impact or casualties. Perspectives differ on whether the strikes constitute defensive retaliation, escalation, or proxy warfare.