Ukraine is conducting sustained drone strikes on Russian oil infrastructure that have disrupted Russian exports significantly — sources confirm 40-43% drops in export capacity amounting to roughly 2 million barrels per day across multiple ports. The specific claim of 880,000 barrels cut in a single 24-hour period cannot be independently verified, though the overall scale and economic impact match reported estimates of $1 billion weekly losses from the coordinated strikes in late March and early April 2026.