Lukoil announced Thursday that it would sell its foreign assets to the American investment firm Carlyle Group, coming months after the United States sanctioned the major oil producer along with Rosneft. Lukoil, Russia's second-largest oil producer, said in a statement that it "signed an agreement with U.S. investment company Carlyle on the sale of LUKOIL International GmbH." The sale excluded assets in Kazakhstan and still requires U.S. Treasury approval, Lukoil said, adding that it was continuing negotiations with other investors. U.S. officials had initially given the company one month to sell off its foreign assets, but it later granted an extension as negotiations dragged on. Lukoil's vast foreign assets include shares in oil fields and refineries across the globe, including in Iraq, Azerbaijan, Egypt, the United Arab Emirates, Nigeria and Mexico.