The overnight drone assault on Moscow and its environs, which struck a key refinery and claimed three lives, extends a pattern of Ukrainian long-range operations targeting Russian energy assets that began intensifying in 2024. Primary Russian Ministry of Defense statements emphasize air-defense intercepts while acknowledging infrastructure damage, contrasting with Ukrainian General Staff releases framing such actions as calibrated responses to prior strikes on Ukrainian grid facilities. This incident reveals gaps in layered air defenses around the capital that earlier reports understated, particularly integration shortfalls between S-400 systems and local radar coverage. Oil-market implications follow directly from reduced refining throughput at facilities already operating below capacity due to prior attacks, a dynamic documented in IEA monthly oil reports tracking Russian export volumes. Multiple viewpoints converge on short-term price pressure without consensus on duration: Russian energy officials stress rapid repairs, while independent analyses of Black Sea tanker movements indicate potential rerouting delays. Broader risk sentiment could transmit to equities via Brent crude benchmarks, echoing volatility episodes observed after 2022 infrastructure targeting.