• Tankers scheduled to load at the CPC terminal are steering away from the Black Sea, according to shipping data and sources.
  • The diversions threaten Kazakhstan's key crude export route, already strained by repeated disruptions.
  • Market players are pricing in higher risk premiums and potential supply tightness for CPC Blend.

Loadings at Risk

Multiple tankers that had been slated to load Kazakh crude at the Caspian Pipeline Consortium (CPC) terminal near Novorossiysk have changed course in recent days, according to shipping data and three people familiar with the matter. The vessels are now loitering in the eastern Mediterranean or heading toward alternative ports, as security concerns in the Black Sea escalate.

“Without a deal to ensure safe passage, we’re seeing a de facto halt to new loadings,” one shipbroker said, speaking on condition of anonymity. CPC did not immediately respond to a request for comment.

Security Fallout

The shift follows a series of drone attacks and military activities near the terminal, which handles about 1% of global oil supply. While no direct strikes on infrastructure have been confirmed in the past week, insurers have hiked war-risk premiums, and at least two major shipping firms have temporarily suspended new bookings for the route, sources said.

Kazakhstan relies on CPC for over 80% of its seaborne exports. Any prolonged disruption could force the country to seek alternative overland routes or cut production. “If loadings don’t resume within a week, we’ll see a tangible drop in CPC Blend availability,” a crude trader based in Geneva noted.

Market Reactions

CPC Blend differentials against Dated Brent have widened by 40 cents since the diversions emerged, and freight rates for Aframax tankers in the region have climbed 15% in the same period, according to assessments by pricing agencies. Some refinery buyers in Southern Europe are already scrambling to secure replacement barrels from West Africa or the North Sea, though spot availability remains tight.

“This is a fluid situation,” one Mediterranean refiner said. “We’re weighing whether to lock in alternative supply now or wait to see if the tankers return.”

Broader Implications

The CPC pipeline’s vulnerability underscores the fragile nature of energy transit through conflict zones. Analysts note that while loadings have historically resumed after brief interruptions, each episode erodes confidence and raises operational costs. Should diversions persist, the route’s reliability could be permanently downgraded.

Correction: A previous version of this article misstated the percentage of Kazakhstan's exports handled by CPC. It is over 80%, not 90%.