How are sustained Ukrainian drone strikes and resulting “unscheduled maintenance” affecting Russia’s oil production and refinery operations—despite Deputy Prime Minister Alexander Novak’s claim that the decline is temporary—including the government’s cut to a 511-million-tonne 20

Ukraine’s sustained strikes are creating a compounding oil-sector constraint for Russia: damaged refinery units cut fuel output, force crude-production curtailments when storage and export routes tighten, and shift the problem from a series of short outages toward a persistent operational and export risk. Novak’s “temporary” characterization could prove true for individual repairs, but it is hard to reconcile with repeated attacks, multiyear-low refining rates, export restrictions, and successively weaker production expectations. 145

• Forecast correction: 511 million tonnes was Russia’s May forecast for 2026 crude plus condensate, roughly flat year on year—not the later 17-year-low forecast. The subsequent draft base-case forecast reportedly cut 2026 crude production to about 494.2 million tonnes, 17.2 million tonnes below the prior projection and the lowest since 2009. 12113

• Upstream effect: Refinery shutdowns reduce domestic crude demand; when storage, port capacity, tanker access, and exports are constrained, producers cannot simply redirect every displaced barrel. The IEA estimated Russian crude output would fall about 3% to 8.9 million b/d in 2026 because of attacks on energy infrastructure. Rystad Energy likewise says it has revised its Russian crude outlook downward after attacks on refineries, ports, and tankers, alongside tighter sanctions. 51

• Refinery effect: The immediate damage is disproportionately serious when drones hit secondary processing units, not just crude-distillation capacity: these units determine the yield of diesel and other high-value products. Reuters estimated that attacks had disabled about 700,000 b/d of refining capacity across 16 refineries between January and May; central-Russian refineries subsequently saw widespread halts or reductions. 910

• Diesel losses are material: Russian diesel output fell about 10% month-on-month in April and another roughly 10% in May as refineries cut or stopped runs. By late summer, daily processing rates had reached multiyear lows. 114

• Domestic policy is evidence of stress: Russia imposed a diesel-export ban in July, while Novak said the country would begin fuel imports; it extended the ban through September 30 to cover diesel, marine fuel, and gas oils. Fuel shortages were associated with sales limits, higher prices, queues, and rationing at stations—meaning available product was being diverted from export markets to domestic consumers. 563

• European impact: Europe receives far less Russian diesel directly than before the EU embargo, but it remains exposed through the global market. Lost Russian barrels reduce supply to Turkey, North Africa, Latin America, and other buyers, which then compete for alternative cargoes—including supplies that might otherwise serve Europe. The relevant price signal is therefore tighter diesel/gasoil balances and stronger middle-distillate cracks rather than only a direct Russia-to-EU supply interruption. The initial export ban coincided with a surge in global diesel prices to multiyear highs. 8

• Global middle-distillates: Diesel, jet fuel, marine gasoil, and heating oil share refinery capacity and trade routes. A Russian diesel shortfall therefore tightens the broader middle-distillate complex, especially if it overlaps with seasonal heating demand, refinery maintenance elsewhere, or further disruptions to Middle Eastern shipping. The persistence of attacks matters more than the nominal size of any single outage: repaired units can be struck again, raising operating risk, repair costs, spare-parts constraints, and the incentive to keep inventories at home. 438

The key uncertainty is duration. If repairs hold and attacks recede, some crude and product volumes can recover; if strikes continue at the recent pace, Russia faces a recurring refinery-product shortage that also suppresses crude output and keeps the international diesel market structurally tighter. 15