Oil plant at the Kashagan oil field in Kazakhstan
Photo: POOL/ REUTERS
Oil is exported from Kazakhstan via the terminal in the southern Russian port city of Novorossiysk in the Black Sea - now it has to stop operating for 30 days on the decision of a court in southern Russia.
The stop was justified with possible environmental damage, reported the Interfax news agency.
Most recently, there had been disagreements between Russia and the neighboring Central Asian ex-Soviet republic of Kazakhstan because of the Ukraine war.
80 percent of the oil exported from Kazakhstan flows through the terminal.
Kazakhstan does not have its own access to the world's oceans.
The handling capacity is 67 million tons of oil per year.
Kazakhstan's President Kassym-Jomart Tokayev recently offered the EU to deliver more oil and gas to Europe to ensure the continent's energy security despite the Ukraine war and the associated sanctions against Russia.
According to a company statement, the operating company Caspian Pipeline Consortium (CPC) is "forced to implement the court decision" but will appeal against it.
According to official information, the documentation for the emergency plan for the elimination of any oil spills is incomplete.
The authorities had originally given CPC until November 30 to eliminate the violations, but in a court hearing on Tuesday, the regional transport regulator surprisingly called for the terminal to be closed - and was right.
Kazakhstan has not recognized the independence of Moscow-backed separatist republics in eastern Ukraine.
The deputy head of Kazakhstan's presidential administration had also announced that the country "did not want to be misused as a bypass road for sanctions."
They will continue to speak of the "war" in Ukraine and expand relations with the EU.