You mean the country's oil that was legally owned/leased by US companies that Maduro refused to pay. An international court told Maduro pony up the money he owed and didn't. On top of refusing to step down when losing an election TWICE, he got exactly what he deserved.
But hey, Maduro can be shipped back home so he can be Mussolini'd which will save US tax payers a lot of money for keeping him imprisoned.