The attack capped a devastating July for Kazakhstan's oil export lifeline. The CPC terminal handles roughly 80% of Kazakhstan's seaborne crude, carrying over 1% of global oil supply . By July 23, the cumulative disruptions had forced Kazakhstan to slash output. Production at the Chevron-led Tengiz field — the country's largest — more than halved, to around 400,000 barrels per day, according to two industry sources . The Kazakh energy ministry confirmed oil firms had to adjust daily output because storage tanks at the export bottleneck had reached capacity after CPC stopped accepting incoming crude .
The July 30 strike was not an isolated event. Loadings were first suspended on July 19, when drones hit the tankers Asia and Nissos Ios during loading . Operations resumed briefly, only to be halted again on July 20 when the tanker NELSA was hit while loading at single-point mooring No. 1 . Loadings restarted around July 27, but the July 30 attack shut the route down once more . In total, Ukrainian drones struck at least six tankers serving CPC in July, including a Chevron-chartered vessel on July 8 .
Kazakhstan condemned the strikes as