Nicolás Maduro, the leader of Venezuela, during a pro-government march in Caracas, Venezuela, on Wednesday, Dec. 10, 2025. Oil exports, the country’s financial lifeblood, have plummeted after the United States took action against three ships that have been used to carry its crude. (Alejandro Cegarra/The New York Times) By ANATOLY KURMANAEV and REBECCA F. ELLIOTT The United States’ aggressive campaign against tankers carrying Venezuelan crude has thrown the country’s oil industry into...