Shell oil last week and said it would withdraw completely from any involvement in Russian hydrocarbons over the countrys invasion of Ukraine. "We are acutely aware that our decision last week to purchase a cargo of Russian crude oil ... was not the right one and we are sorry," Shell Chief Executive Officer Ben van Beurden said, Reuter reported. The British energy major said it would change its crude oil supply chain to remove volumes from the sanctions-hit country "as fast as possible" and shut its service stations, and aviation fuels and lubricants operations in Russia. The company said the change could take weeks to complete and will lead to reduced throughput at some of its refineries.