Kazakhstan Halts Nearly All Black Sea Oil Exports After Tankers Get Hit Again

Kazakhstan has stopped piping oil to the Black Sea entirely. The Caspian Pipeline Consortium confirmed it halted intake from Kazakhstan on Tuesday, July 21, after storage tanks at its Novorossiysk terminal filled up, according to three industry sources cited by Baird Maritime, which credited Reuters reporting.

Monday saw CPC first suspend loadings following a drone strike on tankers at the terminal. Now the whole pipeline has backed up, with nowhere left to put the oil.

The trigger was a fresh round of attacks on tankers identified as the Asia and the Nissos Ios, according to Crypto Briefing, citing Eurasianet reporting. That followed an earlier strike on a vessel called the Nelsa, according to ZeroHedge, which reported that flows had briefly resumed after Sunday's attacks before getting shut down again. One of the struck tankers caught fire on its starboard side, and its 22-person international crew had to be evacuated by CPC tugboats, with only the captain and chief officer staying aboard, ZeroHedge reported, citing Reuters. The tanker stayed afloat.

Kazakhstan's government said Monday that the CPC loading facilities themselves weren't damaged. The pipes and pumps are fine. It's the tanker crews who are spooked. According to LSEG ship-tracking data cited by Baird Maritime, at least two tankers that had planned to dock at the terminal changed course instead.

Oil market impact

CPC handles 80 to 90 percent of Kazakhstan's total oil exports, according to Crypto Briefing. Baird Maritime put the pipeline's share of global oil exports at almost 2 percent. ZeroHedge cited a separate estimate suggesting roughly 1.6 million barrels per day out of Kazakhstan's 2.1 million bpd total exports run through this route.

The timing is brutal. CPC supplies were already down 7 percent in June compared to May, according to sources cited by Baird Maritime, due to an accident at the Tengiz oilfield in late May and lower Russian crude volumes feeding into the pipeline. A full stoppage now compounds those losses.

This lands on a market already jumpy over supply disruptions tied to the Iran war, which has choked off flows from Saudi Arabia and other Gulf producers, according to Baird Maritime. Two Saudi crude tankers reportedly reversed course in the Red Sea this week over Houthi blockade threats, part of the same broader pattern of tanker crews refusing to sail into contested waters rather than risk their ships and lives.

Blame and attribution

The Kremlin has accused Ukraine of targeting CPC tankers as part of what Russian officials call an "ambition to further destabilize the situation on global oil markets," according to ZeroHedge and Baird Maritime. Ukraine has not commented on the attacks, according to Baird Maritime.

No independent confirmation has been presented in these reports that Ukraine carried out the specific tanker strikes. Russia is making the accusation. Ukraine's silence isn't an admission, and it isn't a denial either. Given Ukraine's documented drone campaign against Russian energy infrastructure elsewhere in the war, the accusation isn't far-fetched, but attributing tanker strikes with certainty before any formal claim of responsibility gets ahead of the facts.

Corporate exposure

Chevron holds a 15 percent stake in CPC. Asked for comment, the company told Baird Maritime it "continues to monitor the situation at CPC" and that "the safety and security of personnel remain our top priority," directing further questions to CPC itself.

Unresolved questions

CPC has not said when loadings might resume, and the consortium declined to comment beyond its Monday statement confirming the suspension, according to Baird Maritime. With storage tanks already full, Kazakhstan effectively has no slack left in the system. Barring alternative export routes ramping up fast, the country's oil output itself may need to be throttled back, not just its exports.

The open question is whether insurers and tanker operators view this as a temporary scare or a lasting risk premium on Black Sea shipping. If crews keep refusing to sail, the suspension could outlast the physical damage, which so far both Kazakhstan's government and CPC say has not touched the terminal's actual infrastructure.