Why did Kazakhstan's main oil export terminal in the Black Sea shut down again on Thursday?

The Caspian Pipeline Consortium (CPC) shut down its Black Sea terminal on Thursday for the third time that month after Ukrainian drones attacked two vessels—the Marshall Islands-flagged Nissos Sifnos (hit while loading at the CPC terminal, causing a fire) and the Isle of Man-flagged Marathi—near Russia's Novorossiysk port.

What is the significance of the CPC pipeline for Kazakhstan's oil exports?

The CPC pipeline accounts for 80% of Kazakh oil exports, making it the country's primary route to global markets; its repeated disruptions have forced Kazakhstan to temporarily reduce oil output due to the lack of an easy alternative export route.