FinanceLukoil pockets $13 billion in net income in 2023 after second year of war in UkraineRussian oil producer releases first consolidated annual financials after the country's invasion of Ukraine to demonstrate resilience to challengesMoving up: Russia's Lukoil oil producer executive board chairman Vadim Vorobyov.Photo: LOBACHEVSKOGO NIZHEGOROD STATE UNIVERSITYVladimir AfanasievEuropean Correspondent