Russia is experiencing a 20% gasoline shortage, with production dropping by 1 million tons in September, following Ukrainian drone strikes that have shut down 38% of its oil refineries, according to KyivPost. This critical situation was confirmed in the early morning hours of October 1st, 2025, as Ukraine's Air Force reported activity. Chief of General Staff Andrii Hnatov confirmed this morning, October 1st, 2025, that Ukraine’s transition to a corps-based structure in its Armed Forces is complete. All newly formed corps are now carrying out tasks within designated groupings, though Hnatov noted ongoing "nuances" concerning staffing and training. In related aerial activity reported by Ukraine's Air Force this morning, an enemy reconnaissance UAV was detected in the north of Chernihiv region, identified as a potential gunner for enemy means of damage. Countermeasures were activated. Previous reports from October 1st, 2025, indicated that Russia was preparing to import gasoline to address domestic shortages, with plans to purchase 350,000 tons of gasoline and 100,000 tons of diesel. These imports were expected to be significantly more expensive than domestic prices. The situation has led to fuel rationing in Crimea, with residents reportedly able to buy gasoline only with coupons and facing queues. The extent of Russia's refinery capacity shutdown due to previous attacks was reported at 38% prior to the current reporting window. Repairs to the affected plants may take months due to sanctions, according to RBC. Separately, Vladimir Leontiev, the Russian-appointed former head of the Nova Kakhovka administration, was reported killed in a drone attack in the Kherson region on October 1st, 2025. Earlier on October 1st, 2025, the Ukrainian Air Force announced a missile launch towards the Sumy Region at 7:05 AM UTC and reported enemy tactical aviation activity in the eastern direction between 5:35 AM and 6:35 AM UTC, using guided aviation bombs targeting the Donetsk region. A prominent Ukrainian long-range strike drone unit stated it was not responsible for the Yaroslavl refinery strike, which occurred earlier on October 1st, 2025.