Oil prices strengthened on Monday as an attack on an oil pipeline pumping station in the Caspian Sea slowed flows from Kazakhstan, while investors monitored developments of a possible Moscow-Kiev ceasefire agreement that could ease sanctions and increase global supplies.

Russia said oil flows through the Caspian Pipeline Consortium (CPC), a major route for supplying Kazakhstan and exporting to the global market, were reduced by 30-40% on Tuesday after a Ukrainian drone attack on a pumping station.

A drone strike has hit a pumping station on a oil pipeline in Russia, reducing flows from Kazakhstan to world markets pumped by Western firms including Chevron and Exxon Mobil , its operator said on Monday.

A Ukrainian drone strike has hit a pumping station on Kazakhstan’s main oil export pipeline in Russia, its operator said on Monday, reducing flows to the Black Sea port of Novorossiisk. A drone struck the Kropotkinskaya station in the southern Krasnodar region,

Kazakh sensitivities have been heightened by a February 17 drone attack carried out against a vital pumping station in Russia operated by the Caspian Pipeline Consortium (CPC), part of a pipeline that connects Kazakhstan to the Russian Black Sea port of Novorossiysk.

On February 17, seven unmanned aerial vehicles attacked the Kropotkinskaya pumping station in Russia, a crucial node in the 940-mile Caspian Pipeline Consortium that sends oil from Kazakhstan to the Black Sea port of Novorossiysk.

A drone attack on a major pumping station in southern Russia has disrupted oil flows from Kazakhstan through the Caspian Pipeline Consortium.

Oil prices settled higher on Tuesday as supply disruptions mounted in Russia and the U.S., while talks to end the war in Ukraine capped gains as this could boost supply from Moscow.

Russia shot down 21 Ukrainian drones late Tuesday, but a drone attack on an oil pumping station in southern Russia reduced oil supplies for Kazakhstan and the global market, Russian officials said. Meanwhile,

Kazakhstan has pumped record high oil volumes despite damage on its main export route via Russia, the Caspian Pipeline Consortium (CPC), industry sources said on Thursday.

Kazakhstan will seek contact with Ukraine in order to avoid any repeat of this week's Ukrainian drone strike in southern Russia that hit a pumping station of the main Kazakh oil export pipeline, an official was quoted as saying on Wednesday.

Oil transit volumes from Kazakhstan could be reduced by about 30% due to a Ukrainian drone attack on a major pumping station in southern Russia, according to Transneft. The Kropotkinskaya facility of the Caspian Pipeline Consortium--which transports oil from Kazakhstan's Tengiz field to the Russian Black Sea port of Novorossiysk,