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.

Oil prices were rising in early trade after a drone strike hit a pipeline pumping station in Russia, disrupting flows to global markets. WTI jumped 1.3% to $71.62 a barrel, while Brent crude was up 0.

Oil prices rose on Tuesday, following a drone attack on a Russian oil pipeline pumping station, which disrupted flows from Kazakhstan and added to gains from the prior session. “The recent attack on the Caspian Pipeline pumping station has disrupted oil flows from Kazakhstan,