Maria Lopez complains about gasoline rationing that Venezuela — home to the world’s largest oil reserves — has started introducing in some areas to tackle extreme fuel shortages. “It’s a joke,” Lopez said. But for ordinary Venezuelans, it is a cruel joke without a punchline — a driver recently died of a heart attack after waiting in line for days to fill his tank. Since Monday, drivers in the western state of Lara can buy only 30 liters (eight gallons) of fuel a week, while a rationing system based on vehicles’ license plates has been introduced in Bolivar state in the south and Monagas in the west. Fuel shortages have long been chronic in the smuggling-prone states close to the border with Colombia. But the situation worsened in recent weeks as the United States slapped more economic sanctions on Venezuela and its state-run petrol company […]