In a statement on Tuesday, ExxonMobil said it would begin the process to discontinue operations and develop steps to exit the Sakhalin-1 venture, a project it operates on behalf of an international consortium of Japanese, Indian, and Russian companies.
Per the Sakhalin-1 website, it is one of the largest single international direct investments in Russia.
The company said that given the current situation, it would not invest in new developments in Russia.
"ExxonMobil supports the people of Ukraine as they seek to defend their freedom and determine their own future as a nation. We deplore Russia's military action that violates the territorial integrity of Ukraine and endangers its people," ExxonMobile said in the statement.