The United States in January imposed sanctions on Venezuela's most important global business - producing and selling crude oil - as the Trump administration ratcheted up its bid to force socialist president Nicolas Maduro out of power.
Source: [url=http://feeds.reuters.com/~r/Reuters/worldNews/~3/k5PsDR-a4K4/explainer-u-s-sanctions-and-venezuelas-exports-and-imports-idUSKCN1S82BI]Explainer: U.S. sanctions and Venezuela's exports and imports[/url]